diff --git a/docs/compiled/artplayer-proxy-mediabunny.js b/docs/compiled/artplayer-proxy-mediabunny.js index dd37b8f40..e6fe6ae99 100644 --- a/docs/compiled/artplayer-proxy-mediabunny.js +++ b/docs/compiled/artplayer-proxy-mediabunny.js @@ -4,4 +4,4 @@ * (c) 2017-2026 Harvey Zhao * Released under the MIT License. */ -!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerProxyMediabunny=t(),define(function(){return e.artplayerProxyMediabunny})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerProxyMediabunny=t()}(this,function(){"use strict";function e(e,t){const i=new Map;return e.filter(e=>{const r=e[t];return void 0===r||!i.has(r)&&i.set(r,1)})}class t{constructor(){this.listeners=new Map}addEventListener(e,t){this.listeners.has(e)||this.listeners.set(e,[]),this.listeners.get(e).push(t)}removeEventListener(e,t){const i=this.listeners.get(e);if(!i)return;const r=i.indexOf(t);r>=0&&i.splice(r,1)}emit(e,t){const i=new Event(e);i.detail=t;const r=this.listeners.get(e);r&&r.forEach(e=>e(i))}}function i(e){if(!e)throw new Error("Assertion failed.")}const r=e=>{const t=(e%360+360)%360;if(0===t||90===t||180===t||270===t)return t;throw new Error(`Invalid rotation ${e}.`)},a=e=>e&&e[e.length-1],s=e=>{let t=0;for(;0===e.readBits(1)&&t<32;)t++;if(t>=32)throw new Error("Invalid exponential-Golomb code.");return(1<{const i=t+1,r=Math.floor(Math.log2(i));e.writeBits(r,0),e.writeBits(1,1),e.writeBits(r,i-2**r)},o=e=>{const t=s(e);return 0===(1&t)?-(t>>1):t+1>>1},c=e=>e.constructor===Uint8Array?e:ArrayBuffer.isView(e)?new Uint8Array(e.buffer,e.byteOffset,e.byteLength):new Uint8Array(e),l=e=>e.constructor===DataView?e:ArrayBuffer.isView(e)?new DataView(e.buffer,e.byteOffset,e.byteLength):new DataView(e),u=new TextDecoder,d=e=>Object.fromEntries(Object.entries(e).map(([e,t])=>[t,e])),h={bt709:1,bt470bg:5,smpte170m:6,bt2020:9,smpte432:12},f=d(h),m={bt709:1,smpte170m:6,linear:8,"iec61966-2-1":13,pq:16,hlg:18},p=d(m),g={rgb:0,bt709:1,bt470bg:5,smpte170m:6,"bt2020-ncl":9},k=d(g),y=e=>!!e&&!!e.primaries&&!!e.transfer&&!!e.matrix&&void 0!==e.fullRange,b={primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0},w=e=>e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e);class T{constructor(){this.currentPromise=Promise.resolve(),this.pending=0}async acquire(){let e;const t=new Promise(t=>{let i=!1;e=()=>{i||(t(),this.pending--,i=!0)}}),i=this.currentPromise;return this.currentPromise=t,this.pending++,await i,e}}const S=/^[0-9a-fA-F]+$/,v=e=>[...e].map(e=>e.toString(16).padStart(2,"0")).join(""),P=e=>(e=(e=(e=(e=(e=e>>1&1431655765|(1431655765&e)<<1)>>2&858993459|(858993459&e)<<2)>>4&252645135|(252645135&e)<<4)>>8&16711935|(16711935&e)<<8)>>16&65535|(65535&e)<<16)>>>0,I=(e,t,i)=>{let r=0,a=e.length-1,s=-1;for(;r<=a;){const n=r+a>>1,o=i(e[n]);o===t?(s=n,a=n-1):o{let r=0,a=e.length-1,s=-1;for(;r<=a;){const n=r+(a-r+1)/2|0;i(e[n])<=t?(s=n,r=n+1):a=n-1}return s},C=(e,t,i)=>{const r=x(e,i(t),i);e.splice(r+1,0,t)},B=()=>{let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}},E=(e,t)=>{const i=e.indexOf(t);-1!==i&&e.splice(i,1)},_=(e,t)=>{for(let i=e.length-1;i>=0;i--)if(t(e[i]))return e[i]},R=(e,t)=>{for(let i=e.length-1;i>=0;i--)if(t(e[i]))return i;return-1},F=e=>{throw new Error(`Unexpected value: ${e}`)},A=(e,t,i)=>{const r=e.getUint8(t),a=e.getUint8(t+1),s=e.getUint8(t+2);return i?r|a<<8|s<<16:r<<16|a<<8|s},D=(e,t,i,r)=>{i>>>=0,i&=16777215,e.setUint8(t,i>>>16&255),e.setUint8(t+1,i>>>8&255),e.setUint8(t+2,255&i)},M=(e,t)=>({async next(){const i=await e.next();return i.done?{value:void 0,done:!0}:{value:t(i.value),done:!1}},return:()=>e.return(),throw:t=>e.throw(t),[Symbol.asyncIterator](){return this}}),N=(e,t,i)=>Math.max(t,Math.min(i,e)),O="und",L=e=>{const t=Math.round(e);return Math.abs(e/t-1)<10*Number.EPSILON?t:e},z=(e,t)=>Math.round(e/t)*t,U=(e,t)=>Math.round(e*t)/t,q=(e,t)=>Math.floor(e/t)*t,W=e=>{let t=0;for(;0!==e;)e&=e-1,t++;return t},H=/^[a-z]{3}$/,V=e=>H.test(e),j=1e6*(1+Number.EPSILON),K=(e,t)=>{const i={...e,...t};if(e.headers||t.headers){const r=e.headers?X(e.headers):{},a=t.headers?X(t.headers):{},s={...r};Object.entries(a).forEach(([e,t])=>{const i=Object.keys(s).find(t=>t.toLowerCase()===e.toLowerCase());i&&delete s[i],s[e]=t}),i.headers=s}return i},X=e=>{if(e instanceof Headers){const t={};return e.forEach((e,i)=>{t[i]=e}),t}if(Array.isArray(e)){const t={};return e.forEach(([e,i])=>{t[e]=i}),t}return e},$=async(e,t,i,r,a)=>{let s=0;for(;;)try{return await e(t,i)}catch(n){if(a())throw n;s++;const e=r(s,n,t);if(null===e)throw n;if(be._error("Retrying failed fetch. Error:",n),!Number.isFinite(e)||e<0)throw new TypeError("Retry delay must be a non-negative finite number.");if(e>0&&await pe(1e3*e),a())throw n}};class G{constructor(){this.currentPromise=Promise.resolve()}call(e){return this.currentPromise=this.currentPromise.then(e)}}let Q=null;const Y=()=>null!==Q?Q:Q=!("undefined"===typeof navigator||!(navigator.vendor?.match(/apple/i)||/AppleWebKit/.test(navigator.userAgent)&&!/Chrome/.test(navigator.userAgent)||/\b(iPad|iPhone|iPod)\b/.test(navigator.userAgent)));let J=null;const Z=()=>null!==J?J:J="undefined"!==typeof navigator&&navigator.userAgent?.includes("Firefox");let ee=null;const te=()=>null!==ee?ee:ee=!("undefined"===typeof navigator||!navigator.vendor?.includes("Google Inc")&&!/Chrome/.test(navigator.userAgent)),ie=e=>"undefined"===typeof globalThis.isSecureContext||globalThis.isSecureContext?`${e} is not available in this environment.`:`${e} is not available in this environment; this may be because this page is running in an insecure context. Try serving your page over HTTPS or use localhost.`,re=(async()=>{})().constructor,ae=e=>e instanceof re||e instanceof Promise||"function"===typeof e?.then,se=(e,t)=>-1!==e?e:t,ne=(e,t,i,r)=>e<=r&&i<=t,oe=e=>{const t=atob(e),i=new Uint8Array(t.length);for(let r=0;r{Symbol.dispose??(Symbol.dispose=Symbol("Symbol.dispose"))},le=e=>"number"===typeof e&&!Number.isNaN(e),ue=(e,t)=>{if(t.includes("://"))return t;if(e.includes("://")){const t=e.indexOf("?");-1!==t&&(e=e.slice(0,t))}let i;if(t.startsWith("/")){const r=e.indexOf("://");if(-1===r)i=t;else{const a=e.indexOf("/",r+3);i=-1===a?e+t:e.slice(0,a)+t}}else{const r=e.lastIndexOf("/");i=-1===r?t:e.slice(0,r+1)+t}let r="";const a=i.indexOf("://");if(-1!==a){const e=i.indexOf("/",a+3);-1!==e&&(r=i.slice(0,e),i=i.slice(e))}const s=i.split("/"),n=[];for(const o of s)".."===o?n.pop():"."!==o&&n.push(o);return r+n.join("/")},de=(e,t)=>{let i=0;for(let r=0;r{let i=-1,r=1/0;for(let a=0;a{i(Number.isInteger(e.num)),i(Number.isInteger(e.den)),i(0!==e.den);let t=Math.abs(e.num),r=Math.abs(e.den);for(;0!==r;){const e=t%r;t=r,r=e}const a=t||1;return{num:e.num/a,den:e.den/a}},me=(e,t)=>{if("object"!==typeof e||!e)throw new TypeError(`${t} must be an object.`);if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(`${t}.left must be a non-negative integer.`);if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(`${t}.top must be a non-negative integer.`);if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(`${t}.width must be a non-negative integer.`);if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(`${t}.height must be a non-negative integer.`)},pe=e=>new Promise(t=>setTimeout(t,e));class ge{constructor(){this._listeners=new Map}on(e,t,i){this._listeners.has(e)||this._listeners.set(e,new Set);const r={fn:t,once:i?.once??!1};return this._listeners.get(e).add(r),()=>{this._listeners.get(e)?.delete(r)}}_emit(...e){const[t,i]=e,r=this._listeners.get(t);if(r)for(const s of r){try{s.fn(i)}catch(a){console.error(a)}s.once&&r.delete(s)}}}var ke,ye;(ye=ke||(ke={}))[ye.Silent=0]="Silent",ye[ye.Errors=1]="Errors",ye[ye.Warnings=2]="Warnings",ye[ye.Info=3]="Info";class be{constructor(){}static get level(){return be._level}static set level(e){if(e!==ke.Silent&&e!==ke.Errors&&e!==ke.Warnings&&e!==ke.Info)throw new TypeError("Invalid log level. Use one of the values of the LogLevel enum.");be._level=e}static get _emitter(){return be._emitterInstance??(be._emitterInstance=new ge)}static on(e,t,i){return be._emitter.on(e,t,i)}static _error(...e){be._emitter._emit("error",e),be._level>=ke.Errors&&console.error(...e)}static _warn(...e){be._emitter._emit("warn",e),be._level>=ke.Warnings&&console.warn(...e)}static _info(...e){be._emitter._emit("info",e),be._level>=ke.Info&&console.info(...e)}}be._level=ke.Info,be._emitterInstance=null;class we{constructor(e,t){if(this.data=e,this.mimeType=t,!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("string"!==typeof t)throw new TypeError("mimeType must be a string.")}}class Te{constructor(e,t,i,r){if(this.data=e,this.mimeType=t,this.name=i,this.description=r,!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if(void 0!==t&&"string"!==typeof t)throw new TypeError("mimeType, when provided, must be a string.");if(void 0!==i&&"string"!==typeof i)throw new TypeError("name, when provided, must be a string.");if(void 0!==r&&"string"!==typeof r)throw new TypeError("description, when provided, must be a string.")}}const Se={default:!0,primary:!0,forced:!1,original:!1,commentary:!1,hearingImpaired:!1,visuallyImpaired:!1};class ve{constructor(e){this.bytes=e,this.pos=0}seekToByte(e){this.pos=8*e}readBit(){const e=Math.floor(this.pos/8),t=this.bytes[e]??0,i=7-(7&this.pos),r=(t&1<>i;return this.pos++,r}readBits(e){if(1===e)return this.readBit();let t=0;for(let i=0;i>i-r-1<0&&this.writeBits(r,t.readBits(r))}readAlignedByte(){if(this.pos%8!==0)throw new Error("Bitstream is not byte-aligned.");const e=this.pos/8,t=this.bytes[e]??0;return this.pos+=8,t}skipBits(e){this.pos+=e}getBitsLeft(){return 8*this.bytes.length-this.pos}clone(){const e=new ve(this.bytes);return e.pos=this.pos,e}}const Pe=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350],Ie=[-1,1,2,3,4,5,6,8],xe=e=>{if(!e||e.byteLength<2)throw new TypeError("AAC description must be at least 2 bytes long.");const t=new ve(e),i=Ce(t),{frequencyIndex:r,sampleRate:a}=Be(t),s=t.readBits(4);let n=null;s>=1&&s<=7&&(n=Ie[s]);let o=i,c=!1,l=a;if(5===i||29===i)c=29===i,l=Be(t).sampleRate,o=Ce(t),22===o&&t.skipBits(4);else for(;t.getBitsLeft()>15;){const e=t.pos;if(695===t.readBits(11)){5===Ce(t)&&t.readBits(1)&&(l=Be(t).sampleRate,t.getBitsLeft()>11&&1352===t.readBits(11)&&(c=!!t.readBits(1)));break}t.pos=e+1}return null!==n&&n>1&&(c=!1),{objectType:i,coreObjectType:o,frequencyIndex:r,channelConfiguration:s,outputSampleRate:l,outputNumberOfChannels:c&&1===n?2:n}},Ce=e=>{const t=e.readBits(5);return 31===t?32+e.readBits(6):t},Be=e=>{const t=e.readBits(4);return 15===t?{frequencyIndex:t,sampleRate:e.readBits(24)}:{frequencyIndex:t,sampleRate:t=e.length-2)break;t=r;let a=0;t+3i&&(yield{offset:i,length:t-i}),i=t+a,t=i):t++}-1!==i&&i{if(t.description){const i=3&c(t.description)[4];return Ne(e,i+1)}return Me(e)},Le=e=>31&e,ze=e=>{const t=[],i=e.length;for(let r=0;r{const t=e.reduce((e,t)=>e+Ue.byteLength+t.byteLength,0),i=new Uint8Array(t);let r=0;for(const a of e)i.set(Ue,r),r+=Ue.byteLength,i.set(a,r),r+=a.byteLength;return i},We=(e,t)=>{const i=e.reduce((e,i)=>e+t+i.byteLength,0),r=new Uint8Array(i);let a=0;for(const s of e){const e=new DataView(r.buffer,r.byteOffset,r.byteLength);switch(t){case 1:e.setUint8(a,s.byteLength);break;case 2:e.setUint16(a,s.byteLength,!1);break;case 3:D(e,a,s.byteLength);break;case 4:e.setUint32(a,s.byteLength,!1)}a+=t,r.set(s,a),a+=s.byteLength}return r},He=e=>{try{const t=[],r=[],a=[];for(const i of Me(e)){const s=e.subarray(i.offset,i.offset+i.length),n=Le(s[0]);n===Re.SPS?t.push(s):n===Re.PPS?r.push(s):n===Re.SPS_EXT&&a.push(s)}if(0===t.length)return null;if(0===r.length)return null;const s=t[0],n=Xe(s);i(null!==n);const o=100===n.profileIdc||110===n.profileIdc||122===n.profileIdc||144===n.profileIdc;return{configurationVersion:1,avcProfileIndication:n.profileIdc,profileCompatibility:n.constraintFlags,avcLevelIndication:n.levelIdc,lengthSizeMinusOne:3,sequenceParameterSets:t,pictureParameterSets:r,chromaFormat:o?n.chromaFormatIdc:null,bitDepthLumaMinus8:o?n.bitDepthLumaMinus8:null,bitDepthChromaMinus8:o?n.bitDepthChromaMinus8:null,sequenceParameterSetExt:o?a:null}}catch(t){return be._error("Error building AVC Decoder Configuration Record:",t),null}},Ve=e=>{const t=[];t.push(e.configurationVersion),t.push(e.avcProfileIndication),t.push(e.profileCompatibility),t.push(e.avcLevelIndication),t.push(252|3&e.lengthSizeMinusOne),t.push(224|31&e.sequenceParameterSets.length);for(const i of e.sequenceParameterSets){const e=i.byteLength;t.push(e>>8),t.push(255&e);for(let r=0;r>8),t.push(255&e);for(let r=0;r>8),t.push(255&e);for(let r=0;r{try{const t=l(e);let i=0;const r=t.getUint8(i++),a=t.getUint8(i++),s=t.getUint8(i++),n=t.getUint8(i++),o=3&t.getUint8(i++),c=31&t.getUint8(i++),u=[];for(let l=0;l{try{const t=ze(e),r=new ve(t);r.skipBits(1),r.skipBits(2);if(7!==r.readBits(5))return null;const n=r.readAlignedByte(),c=r.readAlignedByte(),l=r.readAlignedByte();s(r);let u=1,d=0,h=0,f=0;if(100===n||110===n||122===n||244===n||44===n||83===n||86===n||118===n||128===n){u=s(r),3===u&&(f=r.readBits(1)),d=s(r),h=s(r),r.skipBits(1);if(r.readBits(1))for(let e=0;e<(3!==u?8:12);e++){if(r.readBits(1)){const t=e<6?16:64;let i=8,a=8;for(let e=0;ee.level>=l)??a(Vt),r=Math.min(Math.floor(i.maxDpbMbs/(e*t)),16);C=r,B=r}else C=0,B=0}return i(null!==B),{emulationUnpreventedBytes:t,profileIdc:n,constraintFlags:c,levelIdc:l,frameMbsOnlyFlag:T,chromaFormatIdc:u,bitDepthLumaMinus8:d,bitDepthChromaMinus8:h,codedWidth:k,codedHeight:y,displayWidth:b,displayHeight:w,pixelAspectRatio:x,colourPrimaries:S,matrixCoefficients:P,transferCharacteristics:v,fullRangeFlag:I,numReorderFrames:C,maxDecFrameBuffering:B,vuiParametersFlagBitOffset:R,bitstreamRestrictionFlagBitOffset:E,bitstreamRestrictionFlag:_}}catch(t){return be._error("Error parsing AVC SPS:",t),null}},$e=e=>{const t=s(e);e.skipBits(4),e.skipBits(4);for(let i=0;i<=t;i++)s(e),s(e),e.skipBits(1);e.skipBits(5),e.skipBits(5),e.skipBits(5),e.skipBits(5)},Ge=e=>{i(1!==e.bitstreamRestrictionFlag);const t=new Uint8Array(e.emulationUnpreventedBytes.byteLength+64),r=new ve(e.emulationUnpreventedBytes),a=new ve(t);null===e.bitstreamRestrictionFlag?(a.copyBits(e.vuiParametersFlagBitOffset,r),a.writeBits(1,1),a.writeBits(1,0),a.writeBits(1,0),a.writeBits(1,0),a.writeBits(1,0),a.writeBits(1,0),a.writeBits(1,0),a.writeBits(1,0),a.writeBits(1,0)):(i(null!==e.bitstreamRestrictionFlagBitOffset),a.copyBits(e.bitstreamRestrictionFlagBitOffset,r)),a.writeBits(1,1),a.writeBits(1,1),n(a,2),n(a,1),n(a,16),n(a,16),n(a,e.numReorderFrames),n(a,e.maxDecFrameBuffering),a.writeBits(1,1),a.writeBits((8-a.pos%8)%8,0);const s=a.pos/8;return i(Number.isInteger(s)),(e=>{const t=[];let i=0;for(const r of e)2===i&&r<=3&&(t.push(3),i=0),t.push(r),i=0===r?i+1:0;return new Uint8Array(t)})(t.subarray(0,s))},Qe=(e,t)=>{if(t.description){const i=3&c(t.description)[21];return Ne(e,i+1)}return Me(e)},Ye=e=>e>>1&63,Je=e=>{try{const t=new ve(ze(e));t.skipBits(16),t.readBits(4);const i=t.readBits(3),r=t.readBits(1),{general_profile_space:a,general_tier_flag:n,general_profile_idc:o,general_profile_compatibility_flags:c,general_constraint_indicator_flags:l,general_level_idc:u}=et(t,i);s(t);const d=s(t);let h=0;3===d&&(h=t.readBits(1));const f=s(t),m=s(t);let p=f,g=m;if(t.readBits(1)){const e=s(t),i=s(t),r=s(t),a=s(t);let n=1,o=1;const c=0===h?d:0;1===c?(n=2,o=2):2===c&&(n=2,o=1),p-=(e+i)*n,g-=(r+a)*o}const k=s(t),y=s(t);s(t);const b=t.readBits(1);let w=0;for(let e=b?0:i;e<=i;e++)s(t),w=s(t),s(t);s(t),s(t),s(t),s(t),s(t),s(t),t.readBits(1)&&t.readBits(1)&&tt(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),s(t),s(t),t.skipBits(1));const T=s(t);if(it(t,T),t.readBits(1)){const e=s(t);for(let i=0;i{try{const t=[],i=[],r=[],a=[];for(const s of Me(e)){const n=e.subarray(s.offset,s.offset+s.length),o=Ye(n[0]);o===Ae.VPS_NUT?t.push(n):o===Ae.SPS_NUT?i.push(n):o===Ae.PPS_NUT?r.push(n):o!==Ae.PREFIX_SEI_NUT&&o!==Ae.SUFFIX_SEI_NUT||a.push(n)}if(0===i.length||0===r.length)return null;const n=Je(i[0]);if(!n)return null;let c=0;if(r.length>0){const e=r[0],t=new ve(ze(e));t.skipBits(16),s(t),s(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),s(t),s(t),o(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&s(t),o(t),o(t),t.skipBits(1),t.skipBits(1),t.skipBits(1),t.skipBits(1);const i=t.readBits(1),a=t.readBits(1);c=i||a?i&&!a?2:!i&&a?3:0:0}const l=[...t.length?[{arrayCompleteness:1,nalUnitType:Ae.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:Ae.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:Ae.PPS_NUT,nalUnits:r}]:[],...a.length?[{arrayCompleteness:1,nalUnitType:Ye(a[0][0]),nalUnits:a}]:[]];return{configurationVersion:1,generalProfileSpace:n.generalProfileSpace,generalTierFlag:n.generalTierFlag,generalProfileIdc:n.generalProfileIdc,generalProfileCompatibilityFlags:n.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:n.generalConstraintIndicatorFlags,generalLevelIdc:n.generalLevelIdc,minSpatialSegmentationIdc:n.minSpatialSegmentationIdc,parallelismType:c,chromaFormatIdc:n.chromaFormatIdc,bitDepthLumaMinus8:n.bitDepthLumaMinus8,bitDepthChromaMinus8:n.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:n.spsMaxSubLayersMinus1+1,temporalIdNested:n.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:l}}catch(t){return be._error("Error building HEVC Decoder Configuration Record:",t),null}},et=(e,t)=>{const i=e.readBits(2),r=e.readBits(1),a=e.readBits(5);let s=0;for(let u=0;u<32;u++)s=s<<1|e.readBits(1);const n=new Uint8Array(6);for(let u=0;u<6;u++)n[u]=e.readBits(8);const o=e.readBits(8),c=[],l=[];for(let u=0;u0)for(let u=t;u<8;u++)e.skipBits(2);for(let u=0;u{for(let t=0;t<4;t++)for(let i=0;i<(3===t?2:6);i++){if(e.readBits(1)){const i=Math.min(64,1<<4+(t<<1));t>1&&o(e);for(let t=0;t{const i=[];for(let r=0;r{let a=0,n=0,o=0;if(0!==t&&(n=e.readBits(1)),n){if(t===i){o=t-(s(e)+1)}else o=t-1;e.readBits(1),s(e);const n=r[o]??0;for(let t=0;t<=n;t++){e.readBits(1)||e.readBits(1)}a=r[o]}else{const t=s(e),i=s(e);for(let r=0;r{let i=2,r=2,a=2,n=0,o=0,c={num:1,den:1};if(e.readBits(1)){const t=e.readBits(8);if(255===t)c={num:e.readBits(16),den:e.readBits(16)};else{const e=Ke[t];e&&(c=e)}}return e.readBits(1)&&e.readBits(1),e.readBits(1)&&(e.readBits(3),n=e.readBits(1),e.readBits(1)&&(i=e.readBits(8),r=e.readBits(8),a=e.readBits(8))),e.readBits(1)&&(s(e),s(e)),e.readBits(1),e.readBits(1),e.readBits(1),e.readBits(1)&&(s(e),s(e),s(e),s(e)),e.readBits(1)&&(e.readBits(32),e.readBits(32),e.readBits(1)&&s(e),e.readBits(1)&&st(e,!0,t)),e.readBits(1)&&(e.readBits(1),e.readBits(1),e.readBits(1),o=s(e),s(e),s(e),s(e),s(e)),{pixelAspectRatio:c,colourPrimaries:i,transferCharacteristics:r,matrixCoefficients:a,fullRangeFlag:n,minSpatialSegmentationIdc:o}},st=(e,t,i)=>{let r=!1,a=!1,n=!1;r=1===e.readBits(1),a=1===e.readBits(1),(r||a)&&(n=1===e.readBits(1),n&&(e.readBits(8),e.readBits(5),e.readBits(1),e.readBits(5)),e.readBits(4),e.readBits(4),n&&e.readBits(4),e.readBits(5),e.readBits(5),e.readBits(5));for(let o=0;o<=i;o++){let t=!0;1===e.readBits(1)||(t=1===e.readBits(1));let i=!1;t?s(e):i=1===e.readBits(1);let o=1;if(!i){o=s(e)+1}r&&nt(e,o,n),a&&nt(e,o,n)}},nt=(e,t,i)=>{for(let r=0;r{const i=new Set;let r=ot.audAllowed;for(const s of Qe(e,t)){if(r===ot.noMoreDataAllowed){i.add(s.offset);continue}const t=Ye(e[s.offset]);if(r===ot.eoBitstreamAllowed&&37!==t){i.add(s.offset);continue}let a=!1;35===t?r>ot.audAllowed?a=!0:r=ot.beforeFirstVcl:t<=31?r>ot.afterFirstVcl?a=!0:r=ot.afterFirstVcl:36===t?r!==ot.afterFirstVcl?a=!0:r=ot.eoBitstreamAllowed:37===t?r=41&&t<=44||t>=48&&t<=55?r>ot.beforeFirstVcl?a=!0:r=ot.beforeFirstVcl:(38===t||40===t||t>=45&&t<=47||t>=56&&t<=63)&&r{if(t.description){const i=3&c(t.description)[21];return We(e,i+1)}return qe(e)})(a,t)},ut={1:{colourPrimaries:5,transferCharacteristics:6,matrixCoefficients:5},2:{colourPrimaries:1,transferCharacteristics:1,matrixCoefficients:1},3:{colourPrimaries:6,transferCharacteristics:6,matrixCoefficients:6},4:{colourPrimaries:7,transferCharacteristics:7,matrixCoefficients:7},5:{colourPrimaries:9,transferCharacteristics:14,matrixCoefficients:9},7:{colourPrimaries:1,transferCharacteristics:13,matrixCoefficients:0}},dt=e=>{const t=new ve(e);if(2!==t.readBits(2))return null;const i=t.readBits(1),r=(t.readBits(1)<<1)+i;3===r&&t.skipBits(1);if(1===t.readBits(1))return null;if(0!==t.readBits(1))return null;t.skipBits(2);if(4817730!==t.readBits(24))return null;let s=8;if(r>=2){s=t.readBits(1)?12:10}const n=t.readBits(3);let o=0,c=0;if(7!==n){if(c=t.readBits(1),1===r||3===r){const e=t.readBits(1),i=t.readBits(1);o=e||i?e&&!i?2:1:3,t.skipBits(1)}else o=1}else o=3,c=1;const l=(t.readBits(16)+1)*(t.readBits(16)+1);let u=a(jt).level;for(const a of jt)if(l<=a.maxPictureSize){u=a.level;break}const d=ut[n];return{profile:r,level:u,bitDepth:s,chromaSubsampling:o,videoFullRangeFlag:c,colourPrimaries:d?.colourPrimaries??2,transferCharacteristics:d?.transferCharacteristics??2,matrixCoefficients:d?.matrixCoefficients??2}},ht=function*(e){const t=new ve(e),r=()=>{let e=0;for(let i=0;i<8;i++){const r=t.readAlignedByte();if(e+=(127&r)*2**(7*i),!(128&r))break;if(7===i&&128&r)return null}return e>2**32-1?null:e};for(;t.getBitsLeft()>=8;){t.skipBits(1);const a=t.readBits(4),s=t.readBits(1),n=t.readBits(1);let o;if(t.skipBits(1),s&&t.skipBits(8),n){const e=r();if(null===e)return;o=e}else o=Math.floor(t.getBitsLeft()/8);i(t.pos%8===0),yield{type:a,data:e.subarray(t.pos/8,t.pos/8+o)},t.skipBits(8*o)}},ft=e=>{for(const{type:t,data:i}of ht(e)){if(1!==t)continue;const e=new ve(i),r=e.readBits(3);e.readBits(1);const a=e.readBits(1);let s=0,n=0,o=0;if(a)s=e.readBits(5);else{let t=0;if(e.readBits(1)){e.skipBits(32),e.skipBits(32);if(e.readBits(1)){let t=0;for(;t<32&&!e.readBits(1);)t++;t<32&&e.skipBits(t)}t=e.readBits(1),t&&(o=e.readBits(5),e.skipBits(32),e.skipBits(5),e.skipBits(5))}const i=e.readBits(1),r=e.readBits(5);for(let a=0;a<=r;a++){e.skipBits(12);const r=e.readBits(5);if(0===a&&(s=r),r>7){const t=e.readBits(1);0===a&&(n=t)}if(t){if(e.readBits(1)){const t=o+1;e.skipBits(t),e.skipBits(t),e.skipBits(1)}}if(i){e.readBits(1)&&e.skipBits(4)}}}const c=e.readBits(4),l=e.readBits(4),u=c+1;e.skipBits(u);const d=l+1;e.skipBits(d);let h=0;if(h=a?0:e.readBits(1),h&&(e.skipBits(4),e.skipBits(3)),e.skipBits(1),e.skipBits(1),e.skipBits(1),!a){e.skipBits(1),e.skipBits(1),e.skipBits(1),e.skipBits(1);const t=e.readBits(1);t&&(e.skipBits(1),e.skipBits(1));let i=0;if(i=e.readBits(1)?2:e.readBits(1),i>0){e.readBits(1)||e.skipBits(1)}t&&e.skipBits(3)}e.skipBits(1),e.skipBits(1),e.skipBits(1);const f=e.readBits(1);let m=8;if(2===r&&f){m=e.readBits(1)?12:10}else r<=2&&(m=f?10:8);let p=0;1!==r&&(p=e.readBits(1));let g=2,k=2,y=2;e.readBits(1)&&(g=e.readBits(8),k=e.readBits(8),y=e.readBits(8));let b=0,w=1,T=1,S=0;return p?b=e.readBits(1):1===g&&13===k&&0===y?(b=1,w=0,T=0):(b=e.readBits(1),0===r?(w=1,T=1):1===r?(w=0,T=0):12===m?(w=e.readBits(1),T=w?e.readBits(1):0):(w=1,T=0),w&&T&&(S=e.readBits(2))),{profile:r,level:s,tier:n,bitDepth:m,monochrome:p,chromaSubsamplingX:w,chromaSubsamplingY:T,chromaSamplePosition:S,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},mt=e=>{if(e.length<36)return null;const t=l(e);if(1768124518!==t.getUint32(4))return null;return t.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:t.getUint8(22),transferCharacteristics:t.getUint8(23),matrixCoefficients:t.getUint8(24)}},pt=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],gt=e=>{if(e.length<7)throw new Error("Setup header is too short.");if(5!==e[0])throw new Error("Wrong packet type in Setup header.");if("vorbis"!==String.fromCharCode(...e.slice(1,7)))throw new Error("Invalid packet signature in Setup header.");const t=e.length,i=new Uint8Array(t);for(let u=0;u97;)if(1===r.readBits(1)){a=r.pos;break}if(0===a)throw new Error("Invalid Setup header: framing bit not found.");let s=0,n=!1,o=0;for(;r.getBitsLeft()>=97;){const e=r.pos,t=r.readBits(8),i=r.readBits(16),a=r.readBits(16);if(t>63||0!==i||0!==a){r.pos=e;break}if(r.skipBits(1),s++,s>64)break;r.clone().readBits(6)+1===s&&(n=!0,o=s)}if(!n)throw new Error("Invalid Setup header: mode header not found.");if(o>63)throw new Error(`Unsupported mode count: ${o}.`);const c=o;r.pos=0,r.skipBits(a);const l=Array(c).fill(0);for(let u=c-1;u>=0;u--)r.skipBits(40),l[u]=r.readBits(1);return{modeBlockflags:l}},kt=(e,t,r)=>{switch(e){case"avc":for(const e of Oe(r,t)){const t=r[e.offset],i=Le(t);if(i>=Re.NON_IDR_SLICE&&i<=Re.SLICE_DPC)return"delta";if(i===Re.IDR)return"key";if(i===Re.SEI&&!te()){const t=r.subarray(e.offset,e.offset+e.length),i=ze(t);let a=1;do{let e=0;for(;;){const t=i[a++];if(void 0===t)break;if(e+=t,t<255)break}let t=0;for(;;){const e=i[a++];if(void 0===e)break;if(t+=e,e<255)break}if(e===6){const e=new ve(i);e.pos=8*a;const t=s(e),r=e.readBits(1);if(0===t&&1===r)return"key"}a+=t}while(a{var i,r;const a=l(e);let s=0;const n=a.getUint32(s,!0);s+=4;const o=u.decode(e.subarray(s,s+n));s+=n,n>0&&(t.raw??(t.raw={}),(i=t.raw).vendor??(i.vendor=o));const c=a.getUint32(s,!0);s+=4;for(let d=0;d0&&(t.trackNumber??(t.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(t.tracksTotal??(t.tracksTotal=r))}break;case"TRACKTOTAL":{const e=Number.parseInt(d,10);Number.isInteger(e)&&e>0&&(t.tracksTotal??(t.tracksTotal=e))}break;case"DISCNUMBER":{const e=d.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(t.discNumber??(t.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(t.discsTotal??(t.discsTotal=r))}break;case"DISCTOTAL":{const e=Number.parseInt(d,10);Number.isInteger(e)&&e>0&&(t.discsTotal??(t.discsTotal=e))}break;case"DATE":{const e=new Date(d);Number.isNaN(e.getTime())||(t.date??(t.date=e))}break;case"GENRE":t.genre??(t.genre=d);break;case"METADATA_BLOCK_PICTURE":{const e=oe(d),i=l(e),r=i.getUint32(0,!1),a=i.getUint32(4,!1),s=String.fromCharCode(...e.subarray(8,8+a)),n=i.getUint32(8+a,!1),o=u.decode(e.subarray(12+a,12+a+n)),c=i.getUint32(a+n+28),h=e.subarray(a+n+32,a+n+32+c);t.images??(t.images=[]),t.images.push({data:h,mimeType:s,kind:3===r?"coverFront":4===r?"coverBack":"unknown",name:void 0,description:o||void 0})}}}},Tt=[2,1,2,3,3,4,4,5],St=e=>{if(e.length<7)return null;if(11!==e[0]||119!==e[1])return null;const t=new ve(e);t.skipBits(16),t.skipBits(16);const i=t.readBits(2);if(3===i)return null;const r=t.readBits(6),a=t.readBits(5);if(a>8)return null;const s=t.readBits(3),n=t.readBits(3);0!==(1&n)&&1!==n&&t.skipBits(2),0!==(4&n)&&t.skipBits(2),2===n&&t.skipBits(2);return{fscod:i,bsid:a,bsmod:s,acmod:n,lfeon:t.readBits(1),bitRateCode:Math.floor(r/2)}},vt=[128,138,192,128,140,192,160,174,240,160,176,240,192,208,288,192,210,288,224,242,336,224,244,336,256,278,384,256,280,384,320,348,480,320,350,480,384,416,576,384,418,576,448,486,672,448,488,672,512,556,768,512,558,768,640,696,960,640,698,960,768,834,1152,768,836,1152,896,974,1344,896,976,1344,1024,1114,1536,1024,1116,1536,1280,1392,1920,1280,1394,1920,1536,1670,2304,1536,1672,2304,1792,1950,2688,1792,1952,2688,2048,2228,3072,2048,2230,3072,2304,2506,3456,2304,2508,3456,2560,2786,3840,2560,2788,3840],Pt=[1,2,3,6],It=e=>{if(e.length<6)return null;if(11!==e[0]||119!==e[1])return null;const t=new ve(e);t.skipBits(16);const i=t.readBits(2);if(t.skipBits(3),0!==i&&2!==i)return null;const r=t.readBits(11),a=t.readBits(2);let s,n=0;3===a?(n=t.readBits(2),s=3):s=t.readBits(2);const o=t.readBits(3),c=t.readBits(1),l=t.readBits(5);if(l<11||l>16)return null;const u=Pt[s];let d;d=a<3?Ee[a]/1e3:_e[n]/1e3;return{dataRate:Math.round((r+1)*d/(16*u)),substreams:[{fscod:a,fscod2:n,bsid:l,bsmod:0,acmod:o,lfeon:c,numDepSub:0,chanLoc:0}]}},xt=e=>{const t=e.substreams[0];return i(t),t.fscod<3?Ee[t.fscod]:null!==t.fscod2&&t.fscod2<3?_e[t.fscod2]:null},Ct=e=>{const t=e.substreams[0];i(t);let r=Tt[t.acmod]+t.lfeon;if(t.numDepSub>0){const e=[2,2,1,1,2,2,2,1,1];for(let i=0;i<9;i++)t.chanLoc&1<<8-i&&(r+=e[i])}return r},Bt=[0,8e3,16e3,32e3,0,0,11025,22050,44100,0,0,12e3,24e3,48e3,96e3,192e3],Et=[32e3,56e3,64e3,96e3,112e3,128e3,192e3,224e3,256e3,32e4,384e3,448e3,512e3,576e3,64e4,768e3,96e4,1024e3,1152e3,128e4,1344e3,1408e3,1411200,1472e3,1536e3,192e4,2048e3,3072e3,384e4,0,0,0],_t=[16,16,20,20,0,24,24,0],Rt=[1,2,2,2,2,3,3,4,4,5,6,6,6,7,8,8],Ft=[1,2,2,2,2,3,18,19,6,7,518,323,83,519,582,535],At=[32e3,44100,48e3,0],Dt=[8e3,16e3,32e3,64e3,128e3,22050,44100,88200,176400,352800,12e3,24e3,48e3,96e3,192e3,384e3],Mt=[512,1024,2048,4096],Nt=e=>{const t=Lt(e),i=l(e);let r=t?4*Math.ceil(t.frameSize/4):0,a=null;for(;r+4<=e.length&&1683496997===i.getUint32(r);){const t=zt(e.subarray(r));if(!t)break;a??(a=t),r+=t.frameSize}if(t)return{frameSize:a?r:t.frameSize,sampleRate:t.sampleRate,numberOfChannels:t.numberOfChannels,sampleCount:t.sampleCount,channelLayout:t.channelLayout,pcmResolution:t.pcmResolution,bitRate:t.bitRate,core:t,hasExtensions:null!==a};if(!a?.asset)return null;const{asset:s}=a;return{frameSize:r,sampleRate:s.sampleRate,numberOfChannels:s.numberOfChannels,sampleCount:s.sampleCount,channelLayout:s.channelLayout,pcmResolution:s.pcmResolution,bitRate:0,core:null,hasExtensions:!0}},Ot=e=>{const t=Nt(e);return t?.core?t.hasExtensions?"dtsh":"dtsc":null},Lt=e=>{if(e.length<18)return null;if(127!==e[0]||254!==e[1]||128!==e[2]||1!==e[3])return null;const t=new ve(e);if(t.skipBits(32),t.skipBits(1),31!==t.readBits(5))return null;const i=t.readBits(1),r=t.readBits(7)+1;if(r%8!==0)return null;const a=t.readBits(14)+1;if(a<96)return null;const s=t.readBits(6);if(s>=Rt.length)return null;const n=Bt[t.readBits(4)];if(0===n)return null;const o=Et[t.readBits(5)];if(0!==t.readBits(1))return null;t.skipBits(4),t.skipBits(5);const c=t.readBits(2);if(3===c)return null;t.skipBits(1),i&&t.skipBits(16),t.skipBits(7);const l=_t[t.readBits(3)];if(0===l)return null;const u=0!==c;return{frameSize:a,sampleRate:n,numberOfChannels:Rt[s]+(u?1:0),sampleCount:32*r,channelLayout:Ft[s]|(u?8:0),amode:s,lfePresent:u,bitRate:o,pcmResolution:l}},zt=e=>{if(e.length<10)return null;if(100!==e[0]||88!==e[1]||32!==e[2]||37!==e[3])return null;const t=new ve(e);t.skipBits(32),t.skipBits(8);const i=t.readBits(2),r=t.readBits(1),a=8+4*r,s=16+4*r;t.skipBits(a);const n=t.readBits(s)+1,o={frameSize:n,asset:null};if(!t.readBits(1))return o;const c=At[t.readBits(2)],l=512*(t.readBits(3)+1);t.readBits(1)&&t.skipBits(36);const u=t.readBits(3)+1,d=t.readBits(3)+1,h=[];for(let k=0;k2&&t.skipBits(1),p>6&&t.skipBits(1),t.readBits(1))){const e=t.readBits(2)+1<<2;g=t.readBits(e)}return 0===c||t.getBitsLeft()<0?o:{frameSize:n,asset:{sampleRate:m,numberOfChannels:p,sampleCount:Math.round(l*m/c),channelLayout:g,pcmResolution:f}}},Ut=e=>W(e)+W(44646&e),qt=["avc","hevc","vp9","av1","vp8","prores"],Wt=["pcm-s16","pcm-s16be","pcm-s24","pcm-s24be","pcm-s32","pcm-s32be","pcm-f32","pcm-f32be","pcm-f64","pcm-f64be","pcm-u8","pcm-s8","ulaw","alaw"],Ht=["aac","opus","mp3","vorbis","flac","ac3","eac3","dts",...Wt],Vt=[{maxMacroblocks:99,maxBitrate:64e3,maxDpbMbs:396,level:10},{maxMacroblocks:396,maxBitrate:192e3,maxDpbMbs:900,level:11},{maxMacroblocks:396,maxBitrate:384e3,maxDpbMbs:2376,level:12},{maxMacroblocks:396,maxBitrate:768e3,maxDpbMbs:2376,level:13},{maxMacroblocks:396,maxBitrate:2e6,maxDpbMbs:2376,level:20},{maxMacroblocks:792,maxBitrate:4e6,maxDpbMbs:4752,level:21},{maxMacroblocks:1620,maxBitrate:4e6,maxDpbMbs:8100,level:22},{maxMacroblocks:1620,maxBitrate:1e7,maxDpbMbs:8100,level:30},{maxMacroblocks:3600,maxBitrate:14e6,maxDpbMbs:18e3,level:31},{maxMacroblocks:5120,maxBitrate:2e7,maxDpbMbs:20480,level:32},{maxMacroblocks:8192,maxBitrate:2e7,maxDpbMbs:32768,level:40},{maxMacroblocks:8192,maxBitrate:5e7,maxDpbMbs:32768,level:41},{maxMacroblocks:8704,maxBitrate:5e7,maxDpbMbs:34816,level:42},{maxMacroblocks:22080,maxBitrate:135e6,maxDpbMbs:110400,level:50},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:51},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:52},{maxMacroblocks:139264,maxBitrate:24e7,maxDpbMbs:696320,level:60},{maxMacroblocks:139264,maxBitrate:48e7,maxDpbMbs:696320,level:61},{maxMacroblocks:139264,maxBitrate:8e8,maxDpbMbs:696320,level:62}],jt=[{maxPictureSize:36864,maxBitrate:2e5,level:10},{maxPictureSize:73728,maxBitrate:8e5,level:11},{maxPictureSize:122880,maxBitrate:18e5,level:20},{maxPictureSize:245760,maxBitrate:36e5,level:21},{maxPictureSize:552960,maxBitrate:72e5,level:30},{maxPictureSize:983040,maxBitrate:12e6,level:31},{maxPictureSize:2228224,maxBitrate:18e6,level:40},{maxPictureSize:2228224,maxBitrate:3e7,level:41},{maxPictureSize:8912896,maxBitrate:6e7,level:50},{maxPictureSize:8912896,maxBitrate:12e7,level:51},{maxPictureSize:8912896,maxBitrate:18e7,level:52},{maxPictureSize:35651584,maxBitrate:18e7,level:60},{maxPictureSize:35651584,maxBitrate:24e7,level:61},{maxPictureSize:35651584,maxBitrate:48e7,level:62}],Kt=".01.01.01.01.00",Xt=".0.110.01.01.01.0",$t=["ap4x","ap4h","apch","apcn","apcs","apco"],Gt=["dtsc","dtsh","dtsl","dtse"],Qt=e=>{const{codec:t,codecDescription:r,colorSpace:s,avcCodecInfo:n,hevcCodecInfo:o,vp9CodecInfo:c,av1CodecInfo:u,proresFormat:d}=e;if("avc"===t){if(i(null!==e.avcType),n){const t=new Uint8Array([n.avcProfileIndication,n.profileCompatibility,n.avcLevelIndication]);return`avc${e.avcType}.${v(t)}`}if(!r||r.byteLength<4)throw new TypeError("AVC decoder description is not provided or is not at least 4 bytes long.");return`avc${e.avcType}.${v(r.subarray(1,4))}`}if("hevc"===t){let e,t,i,a,s,n;if(o)e=o.generalProfileSpace,t=o.generalProfileIdc,i=P(o.generalProfileCompatibilityFlags),a=o.generalTierFlag,s=o.generalLevelIdc,n=[...o.generalConstraintIndicatorFlags];else{if(!r||r.byteLength<23)throw new TypeError("HEVC decoder description is not provided or is not at least 23 bytes long.");const o=l(r),c=o.getUint8(1);e=c>>6&3,t=31&c,i=P(o.getUint32(2)),a=c>>5&1,s=o.getUint8(12),n=[];for(let e=0;e<6;e++)n.push(o.getUint8(6+e))}let c="hev1.";for(c+=["","A","B","C"][e]+t,c+=".",c+=i.toString(16).toUpperCase(),c+=".",c+=0===a?"L":"H",c+=s;n.length>0&&0===n[n.length-1];)n.pop();return n.length>0&&(c+=".",c+=n.map(e=>e.toString(16).toUpperCase()).join(".")),c}if("vp8"===t)return"vp8";if("vp9"===t){if(!c){const t=e.width*e.height;let i=a(jt).level;for(const e of jt)if(t<=e.maxPictureSize){i=e.level;break}return`vp09.00.${i.toString().padStart(2,"0")}.08`}let t=`vp09.${c.profile.toString().padStart(2,"0")}.${c.level.toString().padStart(2,"0")}.${c.bitDepth.toString().padStart(2,"0")}.${c.chromaSubsampling.toString().padStart(2,"0")}`;return t+=`.${c.colourPrimaries.toString().padStart(2,"0")}.${c.transferCharacteristics.toString().padStart(2,"0")}.${c.matrixCoefficients.toString().padStart(2,"0")}.${c.videoFullRangeFlag.toString().padStart(2,"0")}`,t.endsWith(Kt)&&(t=t.slice(0,-15)),t}if("av1"===t){if(!u){const t=e.width*e.height;let i=a(jt).level;for(const e of jt)if(t<=e.maxPictureSize){i=e.level;break}return`av01.0.${i.toString().padStart(2,"0")}M.08`}const t=u.profile,i=u.level.toString().padStart(2,"0"),r=u.tier?"H":"M",n=u.bitDepth.toString().padStart(2,"0"),o=u.monochrome?"1":"0",c=100*u.chromaSubsamplingX+10*u.chromaSubsamplingY+1*(u.chromaSubsamplingX&&u.chromaSubsamplingY?u.chromaSamplePosition:0),l=s?.primaries?h[s.primaries]:1,d=s?.transfer?m[s.transfer]:1,f=s?.matrix?g[s.matrix]:1,p=s?.fullRange?1:0;let k=`av01.${t}.${i}${r}.${n}`;return k+=`.${o}.${c.toString().padStart(3,"0")}`,k+=`.${l.toString().padStart(2,"0")}`,k+=`.${d.toString().padStart(2,"0")}`,k+=`.${f.toString().padStart(2,"0")}`,k+=`.${p}`,k.endsWith(Xt)&&(k=k.slice(0,-17)),k}if("prores"===t)return d??"apch";throw null!==t&&F(t),new TypeError(`Unhandled codec '${t}'.`)},Yt=e=>{switch(e.codec){case"avc":{let t=e.avcCodecInfo?.sequenceParameterSets[0];if(!t&&e.codecDescription&&(t=je(e.codecDescription)?.sequenceParameterSets[0]),t){const e=Xe(t);if(e)return{primaries:f[e.colourPrimaries],transfer:p[e.transferCharacteristics],matrix:k[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"hevc":{let t=e.hevcCodecInfo?.arrays.find(e=>e.nalUnitType===Ae.SPS_NUT)?.nalUnits[0];if(!t&&e.codecDescription&&(t=(e=>{try{const t=l(e);let i=0;const r=t.getUint8(i++),a=t.getUint8(i++),s=a>>6&3,n=a>>5&1,o=31&a,c=t.getUint32(i,!1);i+=4;const u=e.subarray(i,i+6);i+=6;const d=t.getUint8(i++),h=(15&t.getUint8(i++))<<8|t.getUint8(i++),f=3&t.getUint8(i++),m=3&t.getUint8(i++),p=7&t.getUint8(i++),g=7&t.getUint8(i++),k=t.getUint16(i,!1);i+=2;const y=t.getUint8(i++),b=y>>6&3,w=y>>3&7,T=y>>2&1,S=3&y,v=t.getUint8(i++),P=[];for(let l=0;l>7&1,s=63&r,n=t.getUint16(i,!1);i+=2;const o=[];for(let c=0;ce.nalUnitType===Ae.SPS_NUT)?.nalUnits[0]),t){const e=Je(t);if(e)return{primaries:f[e.colourPrimaries],transfer:p[e.transferCharacteristics],matrix:k[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"vp8":break;case"vp9":if(e.vp9CodecInfo)return{primaries:f[e.vp9CodecInfo.colourPrimaries],transfer:p[e.vp9CodecInfo.transferCharacteristics],matrix:k[e.vp9CodecInfo.matrixCoefficients],fullRange:!!e.vp9CodecInfo.videoFullRangeFlag};break;case"av1":if(e.av1CodecInfo)return{primaries:f[e.av1CodecInfo.colourPrimaries],transfer:p[e.av1CodecInfo.transferCharacteristics],matrix:k[e.av1CodecInfo.matrixCoefficients],fullRange:!!e.av1CodecInfo.videoFullRangeFlag};break;case"prores":if(e.proresCodecInfo)return{primaries:f[e.proresCodecInfo.colourPrimaries],transfer:p[e.proresCodecInfo.transferCharacteristics],matrix:k[e.proresCodecInfo.matrixCoefficients],fullRange:e.proresCodecInfo.fullRange}}return{primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0}},Jt=e=>{const{codec:t,codecDescription:i,aacCodecInfo:r,dtsFormat:a}=e;if("aac"===t){if(!r)throw new TypeError("AAC codec info must be provided.");if(r.isMpeg2)return"mp4a.67";{let e;if(null!==r.objectType)e=r.objectType;else{e=xe(i).objectType}return`mp4a.40.${e}`}}if("mp3"===t)return"mp3";if("opus"===t)return"opus";if("vorbis"===t)return"vorbis";if("flac"===t)return"flac";if("ac3"===t)return"ac-3";if("eac3"===t)return"ec-3";if("dts"===t)return a??"dtsc";if(t&&Wt.includes(t))return t;throw new TypeError(`Unhandled codec '${t}'.`)},Zt=48e3,ei=/^pcm-([usf])(\d+)(be)?$/,ti=e=>{if(i(Wt.includes(e)),"ulaw"===e)return{dataType:"ulaw",sampleSize:1,littleEndian:!0,silentValue:255};if("alaw"===e)return{dataType:"alaw",sampleSize:1,littleEndian:!0,silentValue:213};const t=ei.exec(e);let r;i(t),r="u"===t[1]?"unsigned":"s"===t[1]?"signed":"float";return{dataType:r,sampleSize:Number(t[2])/8,littleEndian:"be"!==t[3],silentValue:"pcm-u8"===e?128:0}},ii=e=>e.startsWith("avc1")||e.startsWith("avc3")?"avc":e.startsWith("hev1")||e.startsWith("hvc1")?"hevc":"vp8"===e?"vp8":e.startsWith("vp09")?"vp9":e.startsWith("av01")?"av1":$t.includes(e)?"prores":"mp3"===e||"mp4a.69"===e||"mp4a.6B"===e||"mp4a.6b"===e||"mp4a.40.34"===e?"mp3":e.startsWith("mp4a.40.")||"mp4a.67"===e?"aac":"opus"===e?"opus":"vorbis"===e?"vorbis":"flac"===e?"flac":"ac-3"===e||"ac3"===e?"ac3":"ec-3"===e||"eac3"===e?"eac3":Gt.includes(e)?"dts":"ulaw"===e?"ulaw":"alaw"===e?"alaw":ei.test(e)?e:"webvtt"===e?"webvtt":null,ri=[44100,48e3,32e3],ai=[-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],si=1483304551,ni=1231971951,oi=(e,t)=>3===e?3===t?21:36:3===t?13:21,ci=(e,t)=>{const i=e>>>24,r=e>>>16&255,a=e>>>8&255,s=255&e;if(255!==i&&255!==r&&255!==a&&255!==s)return{header:null,bytesAdvanced:4};if(255!==i)return{header:null,bytesAdvanced:1};if(224!==(224&r))return{header:null,bytesAdvanced:1};let n=0,o=0;16&r?n=8&r?0:1:(n=1,o=1);const c=r>>3&3,l=r>>1&3,u=(a>>2&3)%3,d=s>>6&3,h=s>>4&3,f=s>>3&1,m=s>>2&1,p=3&s,g=ai[16*n*4+16*l+(a>>4&15)];if(-1===g)return{header:null,bytesAdvanced:1};const k=1e3*g,y=ri[u]>>n+o,b=((e,t,i,r,a)=>0===t?0:1===t?Math.floor(144*i/(r<>1&1);if(null!==t&&t{let t=2130706432,i=0;for(;0!==t;)i>>=1,i|=e&t,t>>=8;return i};var ui,di;(di=ui||(ui={}))[di.FrameCount=1]="FrameCount",di[di.FileSize=2]="FileSize",di[di.Toc=4]="Toc";const hi=e=>3===e?1:2;class fi{constructor(e){this.input=e}dispose(){}}const mi=new Uint8Array(0);class pi{constructor(e,t,i,r,a=-1,s,n){if(this.data=e,this.type=t,this.timestamp=i,this.duration=r,this.sequenceNumber=a,e===mi&&void 0===s)throw new Error("Internal error: byteLength must be explicitly provided when constructing metadata-only packets.");if(void 0===s&&(s=e.byteLength),!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("key"!==t&&"delta"!==t)throw new TypeError('type must be either "key" or "delta".');if(!Number.isFinite(i))throw new TypeError("timestamp must be a number.");if(!Number.isFinite(r)||r<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(a))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(s)||s<0)throw new TypeError("byteLength must be a non-negative integer.");if(void 0!==n&&("object"!==typeof n||!n))throw new TypeError("sideData, when provided, must be an object.");if(void 0!==n?.alpha&&!(n.alpha instanceof Uint8Array))throw new TypeError("sideData.alpha, when provided, must be a Uint8Array.");if(void 0!==n?.alphaByteLength&&(!Number.isInteger(n.alphaByteLength)||n.alphaByteLength<0))throw new TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=s,this.sideData=n??{},this.sideData.alpha&&void 0===this.sideData.alphaByteLength&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}get isMetadataOnly(){return this.data===mi}get microsecondTimestamp(){return Math.trunc(j*this.timestamp)}get microsecondDuration(){return Math.trunc(j*this.duration)}toEncodedVideoChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}alphaToEncodedVideoChunk(e=this.type){if(!this.sideData.alpha)throw new TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.sideData.alpha,type:e,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}toEncodedAudioChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to an audio chunk.");if("undefined"===typeof EncodedAudioChunk)throw new Error("EncodedAudioChunk is not available in this environment.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}static fromEncodedChunk(e,t){if(!(e instanceof EncodedVideoChunk||e instanceof EncodedAudioChunk))throw new TypeError("chunk must be an EncodedVideoChunk or EncodedAudioChunk.");const i=new Uint8Array(e.byteLength);return e.copyTo(i),new pi(i,e.type,e.timestamp/1e6,(e.duration??0)/1e6,void 0,void 0,t)}clone(e){if(void 0!==e&&("object"!==typeof e||null===e))throw new TypeError("options, when provided, must be an object.");if(void 0!==e?.data&&!(e.data instanceof Uint8Array))throw new TypeError("options.data, when provided, must be a Uint8Array.");if(void 0!==e?.type&&"key"!==e.type&&"delta"!==e.type)throw new TypeError('options.type, when provided, must be either "key" or "delta".');if(void 0!==e?.timestamp&&!Number.isFinite(e.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(void 0!==e?.duration&&!Number.isFinite(e.duration))throw new TypeError("options.duration, when provided, must be a number.");if(void 0!==e?.sequenceNumber&&!Number.isFinite(e.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(void 0!==e?.sideData&&("object"!==typeof e.sideData||null===e.sideData))throw new TypeError("options.sideData, when provided, must be an object.");return new pi(e?.data??this.data,e?.type??this.type,e?.timestamp??this.timestamp,e?.duration??this.duration,e?.sequenceNumber??this.sequenceNumber,this.byteLength,e?.sideData??this.sideData)}}const gi=e=>{const t=l(e);let i=0;const r=t.getUint8(i);i+=1,i+=3;const a=v(e.subarray(i,i+16));i+=16;let s=null;if(r>0){const r=t.getUint32(i);if(i+=4,r>0){s=[];for(let t=0;te.systemId===t.systemId&&((e,t)=>{if(e.length!==t.length)return!1;for(let i=0;i{let t=To(e);const i=_o(e,4);let r=8;1===t&&(t=Io(e),r=16);const a=t-r;return a<0?null:{name:i,totalSize:t,headerSize:r,contentSize:a}},bi=e=>vo(e)/65536,wi=e=>vo(e)/1073741824,Ti=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=po(e);if(t|=127&i,0===(128&i))break}return t},Si=e=>{let t=ko(e);return e.skip(2),t=Math.min(t,e.remainingLength),u.decode(mo(e,t))},vi=e=>{const t=yi(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=To(e);e.skip(4);const r=mo(e,t.contentSize-8);switch(i){case 1:return u.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new we(r,"image/jpeg");case 14:return new we(r,"image/png");case 27:return new we(r,"image/bmp");default:return r}},Pi=16,Ii=new Uint32Array(256),xi=new Uint32Array(256),Ci=new Uint32Array(256),Bi=new Uint32Array(256),Ei=new Uint32Array(256),_i=new Uint32Array(256),Ri=new Uint32Array(10);let Fi=!1;class Ai{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(Pi/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(Pi),this.out=new Uint8Array(Pi),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){i(16===e.byteLength),i(16===t.byteLength),Fi||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,n=1;s<256;s++)i[s]=n,t[n]=s,n=n^n<<1^(128&n?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let a=r^r<<1^r<<2^r<<3^r<<4;a=a>>>8^255&a^99,e[s]=a}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);Ii[s]=t<<24|t<<16|t<<8|t,_i[s]=i<<24|i<<16|i<<8|i;const a=r(i,14)<<24|r(i,9)<<16|r(i,13)<<8|r(i,11);xi[s]=a,Ci[s]=a>>>8|a<<24,Bi[s]=a>>>16|a<<16,Ei[s]=a>>>24|a<<8}let a=1;for(let s=0;s<10;s++)Ri[s]=a<<24,a=a<<1^(128&a?283:0);Fi=!0})();const r=new DataView(e.buffer,e.byteOffset,e.byteLength),a=new DataView(t.buffer,t.byteOffset,t.byteLength);this.roundkey[0]=r.getUint32(0,!1),this.roundkey[1]=r.getUint32(4,!1),this.roundkey[2]=r.getUint32(8,!1),this.roundkey[3]=r.getUint32(12,!1),this.iv[0]=a.getUint32(0,!1),this.iv[1]=a.getUint32(4,!1),this.iv[2]=a.getUint32(8,!1),this.iv[3]=a.getUint32(12,!1);for(let i=4;i<44;i+=4){const e=this.roundkey[i-1];this.roundkey[i]=this.roundkey[i-4]^4278190080&Ii[e>>>16&255]^16711680&Ii[e>>>8&255]^65280&Ii[e>>>0&255]^255&Ii[e>>>24&255]^Ri[i/4-1],this.roundkey[i+1]=this.roundkey[i-3]^this.roundkey[i],this.roundkey[i+2]=this.roundkey[i-2]^this.roundkey[i+1],this.roundkey[i+3]=this.roundkey[i-1]^this.roundkey[i+2]}for(let i=0,s=40;i>>24&255]]^Ci[255&Ii[t>>>16&255]]^Bi[255&Ii[t>>>8&255]]^Ei[255&Ii[t>>>0&255]]}}decrypt(){let e=this.inView.getUint32(0,!1)^this.roundkey[0],t=this.inView.getUint32(4,!1)^this.roundkey[1],i=this.inView.getUint32(8,!1)^this.roundkey[2],r=this.inView.getUint32(12,!1)^this.roundkey[3];const a=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),n=this.inView.getUint32(8,!1),o=this.inView.getUint32(12,!1);let c,l,u,d;for(let g=1;g<10;g++){const a=4*g;c=xi[e>>>24]^Ci[r>>>16&255]^Bi[i>>>8&255]^Ei[255&t]^this.roundkey[a],l=xi[t>>>24]^Ci[e>>>16&255]^Bi[r>>>8&255]^Ei[255&i]^this.roundkey[a+1],u=xi[i>>>24]^Ci[t>>>16&255]^Bi[e>>>8&255]^Ei[255&r]^this.roundkey[a+2],d=xi[r>>>24]^Ci[i>>>16&255]^Bi[t>>>8&255]^Ei[255&e]^this.roundkey[a+3],e=c,t=l,i=u,r=d}const h=4278190080&_i[e>>>24&255]^16711680&_i[r>>>16&255]^65280&_i[i>>>8&255]^255&_i[t>>>0&255]^this.roundkey[40],f=4278190080&_i[t>>>24&255]^16711680&_i[e>>>16&255]^65280&_i[r>>>8&255]^255&_i[i>>>0&255]^this.roundkey[41],m=4278190080&_i[i>>>24&255]^16711680&_i[t>>>16&255]^65280&_i[e>>>8&255]^255&_i[r>>>0&255]^this.roundkey[42],p=4278190080&_i[r>>>24&255]^16711680&_i[i>>>16&255]^65280&_i[t>>>8&255]^255&_i[e>>>0&255]^this.roundkey[43];this.outView.setUint32(0,h^this.iv[0],!1),this.outView.setUint32(4,f^this.iv[1],!1),this.outView.setUint32(8,m^this.iv[2],!1),this.outView.setUint32(12,p^this.iv[3],!1),this.iv[0]=a,this.iv[1]=s,this.iv[2]=n,this.iv[3]=o}}class Di extends fi{constructor(e){super(e),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=e._reader}async getTrackBackings(){return await this.readMetadata(),this.tracks.map(e=>e.trackBacking)}async getMimeType(){await this.readMetadata();const e=await this.getTrackBackings(),t=await Promise.all(e.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isQuickTime?"quicktime":"mp4");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(e=>"video"===e.info?.type),hasAudio:this.tracks.some(e=>"audio"===e.info?.type),codecStrings:t.filter(Boolean)})}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=0,t=!1,r=!1;for(;;){let i=this.reader.requestSliceRange(e,8,16);if(ae(i)&&(i=await i),!i)break;const a=e,s=yi(i);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=_o(i,4);this.isQuickTime="qt "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(i.filePos,s.contentSize);if(ae(e)&&(e=await e),!e)break;this.moovSlice=e,this.readContiguousBoxes(this.moovSlice);for(const t of this.tracks){const e=t.editListPreviousSegmentDurations/this.movieTimescale;t.editListOffset-=Math.round(e*t.timescale)}t=this.isFragmented&&null!==this.reader.fileSize&&this.reader.fileSize>a+s.totalSize,r=!0;break}if("moof"===s.name){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');await this.copyMetadataFromInitInput(this.input._initInput),t=!1,r=!0;break}}e=a+s.totalSize}if(!r&&this.input._initInput&&await this.copyMetadataFromInitInput(this.input._initInput),t){i(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);ae(e)&&(e=await e),i(e);const t=To(e),r=this.reader.fileSize-t;if(r>=0&&r<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(r,8,16);if(ae(e)&&(e=await e),e){const t=yi(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);ae(i)&&(i=await i),i&&this.readContiguousBoxes(i)}}}}})())}async copyMetadataFromInitInput(e){const t=await e._getDemuxer();if(t.constructor!==Di)throw new Error("Init input must match the input's format.");await t.readMetadata(),this.movieTimescale=t.movieTimescale,this.movieDurationInTimescale=t.movieDurationInTimescale,this.metadataTags=t.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=t.fragmentTrackDefaults,this.psshBoxes=t.psshBoxes;for(const r of t.tracks){const e={id:r.id,demuxer:this,trackBacking:null,disposition:r.disposition,timescale:r.timescale,durationInMediaTimescale:r.durationInMediaTimescale,durationInMovieTimescale:r.durationInMovieTimescale,rotation:r.rotation,internalCodecId:r.internalCodecId,name:r.name,languageCode:r.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:r.editListPreviousSegmentDurations,editListOffset:r.editListOffset,encryptionInfo:r.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:r.info};if(r.trackBacking)if(i(e.info),"video"===e.info.type&&-1!==e.info.width){const t=e;e.trackBacking=new Ni(t),this.tracks.push(e)}else if("audio"===e.info.type&&-1!==e.info.numberOfChannels){const t=e;e.trackBacking=new Oi(t),this.tracks.push(e)}}}getSampleTableForTrack(e){if(e.sampleTable)return e.sampleTable;const t={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=t,null===e.sampleTableByteOffset)return t;i(this.moovSlice);const r=this.moovSlice.slice(e.sampleTableByteOffset);this.currentTrack=e,this.traverseBox(r),this.currentTrack=null;if("audio"===e.info?.type&&e.info.codec&&Wt.includes(e.info.codec)&&0===t.sampleCompositionTimeOffsets.length){i("audio"===e.info?.type);const r=ti(e.info.codec),s=[],n=[];for(let i=0;ie.startIndex),d=t.sampleTimingEntries[u],h=x(t.sampleTimingEntries,l,e=>e.startIndex),f=t.sampleTimingEntries[h],m=d.startDecodeTimestamp+(c-d.startIndex)*d.delta,p=f.startDecodeTimestamp+(l-f.startIndex)*f.delta-m,g=a(s);g&&g.delta===p?g.count++:s.push({startIndex:o.startChunkIndex+i,startDecodeTimestamp:m,count:1,delta:p});const k=o.samplesPerChunk*r.sampleSize*e.info.numberOfChannels;n.push(k)}o.startSampleIndex=o.startChunkIndex,o.samplesPerChunk=1}t.sampleTimingEntries=s,t.sampleSizes=n}if(t.sampleCompositionTimeOffsets.length>0){t.presentationTimestamps=[];for(const e of t.sampleTimingEntries)for(let i=0;ie.presentationTimestamp-t.presentationTimestamp),t.presentationTimestampIndexMap=Array(t.presentationTimestamps.length).fill(-1);for(let e=0;ee.moofOffset===s.moofOffset);if(r)Wi(i,r.timestamp);else{const e=x(t,s.moofOffset-1,e=>e.moofOffset);if(-1!==e){const r=t[e];Wi(i,r.endTimestamp)}}i.startTimestampIsFinal=!0}const r=x(t,i.startTimestamp,e=>e.startTimestamp);if(-1!==r&&t[r].moofOffset===s.moofOffset||t.splice(r+1,0,{moofOffset:s.moofOffset,startTimestamp:i.startTimestamp,endTimestamp:i.endTimestamp}),i.encryptionAuxInfo&&e.encryptionInfo){const t=await Ki(this.reader,e.encryptionInfo,i.encryptionAuxInfo);for(let e=0;e0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;V(t.languageCode)||(t.languageCode=O)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=_o(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:{...b},avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:"soun"===i&&(t.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const t=this.currentTrack;if(!t)break;t.sampleTableByteOffset=X,this.readContiguousBoxes(e.slice(G,$.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=po(e);e.skip(3);const r=To(e);for(let a=0;a0&&(1===n?(e.skip(4),c=8*To(e),e.skip(8)):2===n&&(e.skip(4),l=Eo(e),o=To(e),e.skip(4),c=To(e),u=To(e),e.skip(8))),t.info.numberOfChannels=o,t.info.sampleRate=l,t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+a.totalSize-e.filePos));const d="enca"===s?t.frmaCodecString:s;if(t.frmaCodecString=null,"mp4a"===d);else if("opus"===d)t.info.codec="opus",t.info.sampleRate=Zt;else if("flac"===d)t.info.codec="flac";else if("ulaw"===d)t.info.codec="ulaw";else if("alaw"===d)t.info.codec="alaw";else if("ac-3"===d)t.info.codec="ac3";else if("ec-3"===d)t.info.codec="eac3";else if(Gt.includes(d))t.info.codec="dts",t.info.dtsFormat=d;else if("twos"===d)8===c?t.info.codec="pcm-s8":16===c?t.info.codec=t.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(be._warn(`Unsupported sample size ${c} for codec 'twos'.`),t.info.codec=null);else if("sowt"===d)8===c?t.info.codec="pcm-s8":16===c?t.info.codec="pcm-s16":(be._warn(`Unsupported sample size ${c} for codec 'sowt'.`),t.info.codec=null);else if("raw "===d)t.info.codec="pcm-u8";else if("in24"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if("in32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if("fl32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if("fl64"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if("ipcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?16===e?t.info.codec="pcm-s16":24===e?t.info.codec="pcm-s24":32===e?t.info.codec="pcm-s32":(be._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null):16===e?t.info.codec="pcm-s16be":24===e?t.info.codec="pcm-s24be":32===e?t.info.codec="pcm-s32be":(be._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null)}else if("fpcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?32===e?t.info.codec="pcm-f32":64===e?t.info.codec="pcm-f64":(be._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(be._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===d&&null!==u){const e=c+7>>3,i=Boolean(1&u),r=Boolean(2&u),a=4&u?-1:0;c>0&&c<=64&&(i?32===c&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):a&1<0?(t.encryptionInfo.defaultCryptByteBlock=r>>4,t.encryptionInfo.defaultSkipByteBlock=15&r):(t.encryptionInfo.defaultCryptByteBlock=0,t.encryptionInfo.defaultSkipByteBlock=0),t.encryptionInfo.defaultIsProtected=0!==po(e),t.encryptionInfo.defaultPerSampleIvSize=po(e),t.encryptionInfo.defaultKid=v(mo(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=po(e),r=new Uint8Array(16);r.set(mo(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(i(t.info),0===$.contentSize)break;t.info.codecDescription=mo(e,$.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(i(t.info),0===$.contentSize)break;t.info.codecDescription=mo(e,$.contentSize)}break;case"vpcC":{const t=this.currentTrack;if(!t)break;i("video"===t.info?.type),e.skip(4);const r=po(e),a=po(e),s=po(e),n=s>>4,o=s>>1&7,c=1&s,l=po(e),u=po(e),d=po(e);t.info.vp9CodecInfo={profile:r,level:a,bitDepth:n,chromaSubsampling:o,videoFullRangeFlag:c,colourPrimaries:l,transferCharacteristics:u,matrixCoefficients:d}}break;case"av1C":{const t=this.currentTrack;if(!t)break;i("video"===t.info?.type),e.skip(1);const r=po(e),a=r>>5,s=31&r,n=po(e),o=n>>7,c=n>>6&1,l=n>>4&1,u=n>>3&1,d=n>>2&1,h=3&n,f=2===a&&c?n>>5&1?12:10:c?10:8;e.skip(1);const m=mo(e,$.contentSize-4),p=ft(m);t.info.av1CodecInfo={profile:a,level:s,tier:o,bitDepth:f,monochrome:l,chromaSubsamplingX:u,chromaSubsamplingY:d,chromaSamplePosition:h,videoFullRangeFlag:p?.videoFullRangeFlag??0,colourPrimaries:p?.colourPrimaries??2,transferCharacteristics:p?.transferCharacteristics??2,matrixCoefficients:p?.matrixCoefficients??2}}break;case"colr":{const t=this.currentTrack;if(!t)break;i("video"===t.info?.type);const r=_o(e,4);if("nclx"!==r&&"nclc"!==r)break;const a=ko(e),s=ko(e),n=ko(e);let o;"nclx"===r&&(o=Boolean(128&po(e))),t.info.colorSpace={primaries:f[a],transfer:p[s],matrix:k[n],fullRange:o}}break;case"pasp":{const t=this.currentTrack;if(!t)break;i("video"===t.info?.type);const r=To(e),a=To(e);r>0&&a>0&&(r>a?t.info.squarePixelWidth=Math.round(t.info.width*r/a):t.info.squarePixelHeight=Math.round(t.info.height*a/r))}break;case"esds":{const t=this.currentTrack;if(!t||"audio"!==t.info?.type)break;e.skip(4);i(3===po(e)),Ti(e),e.skip(2);const r=po(e),a=0!==(64&r),s=0!==(32&r);if(0!==(128&r)&&e.skip(2),a){const t=po(e);e.skip(t)}s&&e.skip(2);i(4===po(e));const n=Ti(e),o=e.filePos,c=po(e);if(64===c||103===c?(t.info.codec="aac",t.info.aacCodecInfo={isMpeg2:103===c,objectType:null}):105===c||107===c?t.info.codec="mp3":221===c?t.info.codec="vorbis":169===c?t.info.codec="dts":be._warn(`Unsupported audio codec (objectTypeIndication ${c}) - discarding track.`),e.skip(12),n>e.filePos-o){i(5===po(e));const r=Ti(e);if(t.info.codecDescription=mo(e,r),"aac"===t.info.codec){const e=xe(t.info.codecDescription);null!==e.outputNumberOfChannels&&(t.info.numberOfChannels=e.outputNumberOfChannels),null!==e.outputSampleRate&&(t.info.sampleRate=e.outputSampleRate)}}}break;case"enda":{const t=this.currentTrack;if(!t)break;i("audio"===t.info?.type),t.info.pcmLittleEndian=!!(255&ko(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;i("audio"===t.info?.type),e.skip(4);const r=po(e);t.info.pcmLittleEndian=Boolean(1&r),t.info.pcmSampleSize=po(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;i("audio"===t.info?.type),e.skip(1);const r=po(e),a=ko(e),s=To(e),n=bo(e),o=po(e);let c;c=0!==o?mo(e,2+r):new Uint8Array(0);const l=new Uint8Array(19+c.byteLength),u=new DataView(l.buffer);u.setUint32(0,1332770163,!1),u.setUint32(4,1214603620,!1),u.setUint8(8,1),u.setUint8(9,r),u.setUint16(10,a,!0),u.setUint32(12,s,!0),u.setInt16(16,n,!0),u.setUint8(18,o),l.set(c,19),t.info.codecDescription=l,t.info.numberOfChannels=r}break;case"dfLa":{const t=this.currentTrack;if(!t)break;i("audio"===t.info?.type),e.skip(4);const r=127,a=128,s=e.filePos;for(;e.filePos>>12,a=1+(i>>9&7);t.info.sampleRate=r,t.info.numberOfChannels=a,e.skip(20)}else e.skip(s);if(i&a)break}const n=e.filePos;e.filePos=s;const o=mo(e,n-s),c=new Uint8Array(4+o.byteLength);new DataView(c.buffer).setUint32(0,1716281667,!1),c.set(o,4),t.info.codecDescription=c}break;case"dac3":{const t=this.currentTrack;if(!t)break;i("audio"===t.info?.type);const r=mo(e,3),a=new ve(r),s=a.readBits(2);a.skipBits(8);const n=a.readBits(3),o=a.readBits(1);s<3&&(t.info.sampleRate=Ee[s]),t.info.numberOfChannels=Tt[n]+o}break;case"dec3":{const t=this.currentTrack;if(!t)break;i("audio"===t.info?.type);const r=(e=>{if(e.length<2)return null;const t=new ve(e),i=t.readBits(13),r=t.readBits(3),a=[];for(let s=0;s<=r&&!(Math.ceil(t.pos/8)+3>e.length);s++){const e=t.readBits(2),i=t.readBits(5);t.skipBits(1),t.skipBits(1);const r=t.readBits(3),s=t.readBits(3),n=t.readBits(1);t.skipBits(3);const o=t.readBits(4);let c=0;o>0?c=t.readBits(9):t.skipBits(1),a.push({fscod:e,fscod2:null,bsid:i,bsmod:r,acmod:s,lfeon:n,numDepSub:o,chanLoc:c})}return 0===a.length?null:{dataRate:i,substreams:a}})(mo(e,$.contentSize));if(!r){be._warn("Invalid dec3 box contents, ignoring.");break}const a=xt(r);null!==a&&(t.info.sampleRate=a),t.info.numberOfChannels=Ct(r)}break;case"ddts":{const t=this.currentTrack;if(!t)break;i("audio"===t.info?.type);const r=(e=>{if(e.length<20)return null;const t=l(e),i=t.getUint32(0);if(0===i)return null;const r=new ve(e);r.seekToByte(13);const a=r.readBits(2);r.skipBits(5);const s=r.readBits(1),n=r.readBits(6);r.skipBits(14),r.skipBits(1),r.skipBits(3);const o=r.readBits(16);let c=null;return 0!==o?c=Ut(o):ne.id===i);if(!r)break;const a=To(e),s=(12&a)>>2,n=3&a,o=[po,ko,yo,To],c=o[(48&a)>>4],l=o[s],u=o[n],d=To(e);for(let h=0;he.timestamp-t.timestamp);for(let e=0;e({presentationTimestamp:e.presentationTimestamp,sampleIndex:t})).sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp);for(let i=0;ie.id===u);if(!d)break;const h=this.fragmentTrackDefaults.find(e=>e.trackId===u);this.currentTrack=d,d.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:h?.defaultSampleDescriptionIndex??null,defaultSampleDuration:h?.defaultSampleDuration??null,defaultSampleSize:h?.defaultSampleSize??null,defaultSampleFlags:h?.defaultSampleFlags??null,startTimestamp:null,encryptionAuxInfo:null},r?d.currentFragmentState.baseDataOffset=Io(e):l&&(d.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),a&&(d.currentFragmentState.sampleDescriptionIndex=To(e)),s&&(d.currentFragmentState.defaultSampleDuration=To(e)),n&&(d.currentFragmentState.defaultSampleSize=To(e)),o&&(d.currentFragmentState.defaultSampleFlags=To(e)),c&&(d.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;i(t.currentFragmentState);const r=po(e);e.skip(3);const a=0===r?To(e):Io(e);t.currentFragmentState.startTimestamp=a}break;case"trun":{const t=this.currentTrack;if(!t)break;i(this.currentFragment),i(t.currentFragmentState);const r=po(e),a=yo(e),s=Boolean(1&a),n=Boolean(4&a),o=Boolean(256&a),c=Boolean(512&a),l=Boolean(1024&a),u=Boolean(2048&a),d=To(e);let h=null;s&&(h=vo(e));let f,m=null;n&&(m=To(e)),this.currentFragment.trackData.has(t.id)?(f=this.currentFragment.trackData.get(t.id),null!==h&&(f.currentOffset=t.currentFragmentState.baseDataOffset+h)):(f={track:t,currentTimestamp:0,currentOffset:t.currentFragmentState.baseDataOffset+(h??0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(t.id,f));for(let p=0;p0&&(a=mo(e,r));const s=ji(t);s.defaultSampleInfoSize=i,s.sampleSizes=a,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=po(e);if(1&yo(e)){const i=_o(e,4),r=To(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=To(e);if(0===r)break;r>1&&be._warn("Multiple saio entries are not supported; using the first offset only.");let a=0===i?To(e):Number(Io(e));this.currentFragment&&(a+=this.currentFragment.moofOffset);ji(t).offset=a}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;i(this.currentFragment);const r=this.currentFragment.trackData.get(t.id);if(!r)break;e.skip(1);const a=yo(e),s=Boolean(2&a),n=To(e),o=t.encryptionInfo.defaultPerSampleIvSize;i(null!==o);for(let i=0;i0?a.set(mo(e,o),0):a.set(t.encryptionInfo.defaultConstantIv,0);let n=null;if(s){const t=ko(e);n=[];for(let i=0;i0&&((U=this.metadataTags).trackNumber??(U.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&((q=this.metadataTags).tracksTotal??(q.tracksTotal=i))}break;case"trkn":if(a instanceof Uint8Array&&a.length>=6){const e=l(a),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&((W=this.metadataTags).trackNumber??(W.trackNumber=t)),i>0&&((H=this.metadataTags).tracksTotal??(H.tracksTotal=i))}break;case"disc":case"disk":if(a instanceof Uint8Array&&a.length>=6){const e=l(a),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&((j=this.metadataTags).discNumber??(j.discNumber=t)),i>0&&((K=this.metadataTags).discsTotal??(K.discsTotal=i))}}}}}return e.filePos=Q,!0}}class Mi{constructor(e){this.internalTrack=e,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.tracks)if(r.trackBacking.getType()===t&&i++,r===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const e=this.internalTrack;if(e.durationInMediaTimescale<=0)return null;i(e.trackBacking);const t=await e.trackBacking.getFirstPacket({metadataOnly:!0});return(t?.timestamp??0)+e.durationInMediaTimescale/e.timescale}async getLiveRefreshInterval(){return null}async getFirstPacket(e){const t=await this.fetchPacketForSampleIndex(0,e);return t||!this.internalTrack.demuxer.isFragmented?t:this.performFragmentedLookup(null,e=>e.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,e)}mapTimestampIntoTimescale(e){return L(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}async getPacket(e,t){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a=Li(r,i),s=await this.fetchPacketForSampleIndex(a,t);return Vi(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=x(t.presentationTimestamps,i,e=>e.presentationTimestamp);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id);if(r.sampleIndex+1{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=R(t.presentationTimestamps,e=>t.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=i);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i{if(e===a.fragment){const t=e.trackData.get(this.internalTrack.id).samples.findIndex((e,t)=>e.isKeyFrame&&t>a.sampleIndex);if(-1!==t)return{sampleIndex:t,correctSampleFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.samples.findIndex(e=>e.isKeyFrame);return i(-1!==e),{sampleIndex:e,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)}async fetchPacketForSampleIndex(e,t){if(-1===e)return null;const i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=Ui(i,e);if(!r)return null;let a;if(t.metadataOnly)a=mi;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(ae(t)&&(t=await t),!t)return null;if(a=mo(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=await Ki(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);ee.timestamp),d=-1!==u?this.internalTrack.fragmentLookupTable[u]:null,h=x(this.internalTrack.fragmentPositionCache,r,e=>e.startTimestamp),f=-1!==h?this.internalTrack.fragmentPositionCache[h]:null,m=Math.max(d?.moofOffset??0,f?.moofOffset??0)||null;let p;for(e?null===m||e.moofOffset>=m?(p=e.moofOffset+e.moofSize,o=e):p=m:p=m??0;;){if(o){const e=o.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>a)break}let e=n.reader.requestSliceRange(p,8,16);if(ae(e)&&(e=await e),!e)break;const i=p,r=yi(e);if(!r)break;if("moof"===r.name){o=await n.readFragment(i);const{sampleIndex:e,correctSampleFound:r}=t(o);if(r)return this.fetchPacketInFragment(o,e,s);-1!==e&&(c=o,l=e)}p=i+r.totalSize}if(d&&(!c||c.moofOffset{var e,t,i,r,a;if("avc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("hevc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("vp9"!==this.internalTrack.info.codec||this.internalTrack.info.vp9CodecInfo&&(2!==(a=this.internalTrack.info.vp9CodecInfo).colourPrimaries||2!==a.transferCharacteristics||2!==a.matrixCoefficients))if("av1"!==this.internalTrack.info.codec||this.internalTrack.info.av1CodecInfo&&(e=>2!==e.colourPrimaries||2!==e.transferCharacteristics||2!==e.matrixCoefficients)(this.internalTrack.info.av1CodecInfo)){if("prores"===this.internalTrack.info.codec&&!this.internalTrack.info.proresCodecInfo){const e=await this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=e&&mt(e.data)}}else{const e=await this.getFirstPacket({}),t=e&&ft(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const e=await this.getFirstPacket({}),t=e&&dt(e.data);t&&(this.internalTrack.info.vp9CodecInfo={...this.internalTrack.info.vp9CodecInfo??t,videoFullRangeFlag:t.videoFullRangeFlag,colourPrimaries:t.colourPrimaries,transferCharacteristics:t.transferCharacteristics,matrixCoefficients:t.matrixCoefficients})}else{const e=await this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=e&&Ze(e.data)}else{const e=await this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&He(e.data)}if(!y(this.internalTrack.info.colorSpace)){const a=Yt(this.internalTrack.info);(e=this.internalTrack.info.colorSpace).primaries??(e.primaries=a.primaries),(t=this.internalTrack.info.colorSpace).transfer??(t.transfer=a.transfer),(i=this.internalTrack.info.colorSpace).matrix??(i.matrix=a.matrix),(r=this.internalTrack.info.colorSpace).fullRange??(r.fullRange=a.fullRange)}const s={codec:Qt(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(s.displayAspectWidth=this.internalTrack.info.squarePixelWidth,s.displayAspectHeight=this.internalTrack.info.squarePixelHeight),s})()):null}}class Oi extends Mi{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Ot(e.data)}return{codec:Jt(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})()):null}}const Li=(e,t)=>{if(e.presentationTimestamps){const i=x(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=x(e.sampleTimingEntries,t,e=>e.startDecodeTimestamp);if(-1===i)return-1;const r=e.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},zi=(e,t)=>{if(!e.keySampleIndices)return Li(e,t);if(e.presentationTimestamps){const i=x(e.presentationTimestamps,t,e=>e.presentationTimestamp);if(-1===i)return-1;for(let t=i;t>=0;t--){const i=e.presentationTimestamps[t].sampleIndex;if(-1!==I(e.keySampleIndices,i,e=>e))return i}return-1}{const i=Li(e,t),r=x(e.keySampleIndices,i,e=>e);return e.keySampleIndices[r]??-1}},Ui=(e,t)=>{const r=x(e.sampleTimingEntries,t,e=>e.startIndex),a=e.sampleTimingEntries[r];if(!a||a.startIndex+a.count<=t)return null;let s=a.startDecodeTimestamp+(t-a.startIndex)*a.delta;const n=x(e.sampleCompositionTimeOffsets,t,e=>e.startIndex),o=e.sampleCompositionTimeOffsets[n];o&&t-o.startIndexe.startSampleIndex),u=e.sampleToChunk[l];i(u);const d=u.startChunkIndex+Math.floor((t-u.startSampleIndex)/u.samplesPerChunk),h=e.chunkOffsets[d],f=u.startSampleIndex+(d-u.startChunkIndex)*u.samplesPerChunk;let m=0,p=h;if(1===e.sampleSizes.length)p+=c*(t-f),m+=c*u.samplesPerChunk;else for(let i=f;ie)}},qi=(e,t)=>{if(!e.keySampleIndices)return t+1;const i=x(e.keySampleIndices,t,e=>e);return e.keySampleIndices[i+1]??-1},Wi=(e,t)=>{e.startTimestamp+=t,e.endTimestamp+=t;for(const i of e.samples)i.presentationTimestamp+=t;for(const i of e.presentationTimestamps)i.presentationTimestamp+=t},Hi=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},Vi=e=>0===e.sampleSizes.length,ji=e=>{var t;return e.currentFragmentState?(t=e.currentFragmentState).encryptionAuxInfo??(t.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}):e.encryptionAuxInfo??(e.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null})},Ki=async(e,t,r)=>{if(r.resolved)return r.resolved;if(null===r.offset||0===r.sampleCount)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let a=0;if(r.defaultSampleInfoSize>0)a=r.defaultSampleInfoSize*r.sampleCount;else{i(r.sampleSizes);for(let e=0;e0?r.defaultSampleInfoSize:r.sampleSizes[i],a=new Uint8Array(16);n>0?a.set(mo(s,n),0):a.set(t.defaultConstantIv,0);let c=null;if(e>n){const e=ko(s);c=[];for(let t=0;te.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,$i=async(e,t,r,a)=>{i(e.encryptionInfo);const s=e.encryptionInfo;i(null!==s.defaultKid);const n=s.defaultKid;let o;const c=e.demuxer.decryptionKeyCache.get(n);if(c)o=await c;else{if(!e.demuxer.input._formatOptions.isobmff?.resolveKeyId)throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const t=(async()=>{let t=e.demuxer.psshBoxes;if(a){t=[...t,...a.psshBoxes].filter(e=>null===e.keyIds||e.keyIds.includes(n));for(let e=0;e{i(e.length%2===0);const t=new Uint8Array(e.length/2);for(let i=0;i{const s=new Uint8Array(16);s.set(r.iv,0);const n=await crypto.subtle.importKey("raw",e,{name:"AES-CTR"},!1,["decrypt"]),o=async e=>{const t=await crypto.subtle.decrypt({name:"AES-CTR",counter:s,length:64},n,e);return new Uint8Array(t)};if(!r.subsamples)return o(a);i(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const c=Yi(r.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock);let l=0;for(const i of c)for(const e of i.perSubsample)l+=e.length;const u=new Uint8Array(l);let d=0;for(const i of c)for(const e of i.perSubsample)u.set(a.subarray(e.offset,e.offset+e.length),d),d+=e.length;const h=await o(u),f=new Uint8Array(a);let m=0;for(const i of c)for(const e of i.perSubsample)f.set(h.subarray(m,m+e.length),e.offset),m+=e.length;return f},Qi=(e,t,r,a)=>{const s=new Ai;s.init({key:e,iv:r.iv});const n=t.defaultCryptByteBlock,o=t.defaultSkipByteBlock;if(i(null!==n&&null!==o),!r.subsamples){const e=new Uint8Array(a),t=Math.floor(a.length/16);for(let i=0;i{const r=[],a=0!==t||0!==i;let s=0;for(const n of e){s+=n.clearLen;const e=[];if(a){let r=n.protectedLen,a=s;for(;r>0&&!(r<16*t);){const s=16*t;e.push({offset:a,length:s}),a+=s,r-=s;const n=Math.min(16*i,r);a+=n,r-=n}s+=n.protectedLen}else n.protectedLen>0&&e.push({offset:s,length:n.protectedLen}),s+=n.protectedLen;r.push({perSubsample:e})}return r};var Ji,Zi;(Zi=Ji||(Ji={}))[Zi.EBML=440786851]="EBML",Zi[Zi.EBMLVersion=17030]="EBMLVersion",Zi[Zi.EBMLReadVersion=17143]="EBMLReadVersion",Zi[Zi.EBMLMaxIDLength=17138]="EBMLMaxIDLength",Zi[Zi.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",Zi[Zi.DocType=17026]="DocType",Zi[Zi.DocTypeVersion=17031]="DocTypeVersion",Zi[Zi.DocTypeReadVersion=17029]="DocTypeReadVersion",Zi[Zi.Void=236]="Void",Zi[Zi.Segment=408125543]="Segment",Zi[Zi.SeekHead=290298740]="SeekHead",Zi[Zi.Seek=19899]="Seek",Zi[Zi.SeekID=21419]="SeekID",Zi[Zi.SeekPosition=21420]="SeekPosition",Zi[Zi.Duration=17545]="Duration",Zi[Zi.Info=357149030]="Info",Zi[Zi.TimestampScale=2807729]="TimestampScale",Zi[Zi.MuxingApp=19840]="MuxingApp",Zi[Zi.WritingApp=22337]="WritingApp",Zi[Zi.Tracks=374648427]="Tracks",Zi[Zi.TrackEntry=174]="TrackEntry",Zi[Zi.TrackNumber=215]="TrackNumber",Zi[Zi.TrackUID=29637]="TrackUID",Zi[Zi.TrackType=131]="TrackType",Zi[Zi.FlagEnabled=185]="FlagEnabled",Zi[Zi.FlagDefault=136]="FlagDefault",Zi[Zi.FlagForced=21930]="FlagForced",Zi[Zi.FlagOriginal=21934]="FlagOriginal",Zi[Zi.FlagHearingImpaired=21931]="FlagHearingImpaired",Zi[Zi.FlagVisualImpaired=21932]="FlagVisualImpaired",Zi[Zi.FlagCommentary=21935]="FlagCommentary",Zi[Zi.FlagLacing=156]="FlagLacing",Zi[Zi.Name=21358]="Name",Zi[Zi.Language=2274716]="Language",Zi[Zi.LanguageBCP47=2274717]="LanguageBCP47",Zi[Zi.CodecID=134]="CodecID",Zi[Zi.CodecPrivate=25506]="CodecPrivate",Zi[Zi.CodecDelay=22186]="CodecDelay",Zi[Zi.SeekPreRoll=22203]="SeekPreRoll",Zi[Zi.DefaultDuration=2352003]="DefaultDuration",Zi[Zi.Video=224]="Video",Zi[Zi.PixelWidth=176]="PixelWidth",Zi[Zi.PixelHeight=186]="PixelHeight",Zi[Zi.DisplayWidth=21680]="DisplayWidth",Zi[Zi.DisplayHeight=21690]="DisplayHeight",Zi[Zi.DisplayUnit=21682]="DisplayUnit",Zi[Zi.AlphaMode=21440]="AlphaMode",Zi[Zi.Audio=225]="Audio",Zi[Zi.SamplingFrequency=181]="SamplingFrequency",Zi[Zi.Channels=159]="Channels",Zi[Zi.BitDepth=25188]="BitDepth",Zi[Zi.SimpleBlock=163]="SimpleBlock",Zi[Zi.BlockGroup=160]="BlockGroup",Zi[Zi.Block=161]="Block",Zi[Zi.BlockAdditions=30113]="BlockAdditions",Zi[Zi.BlockMore=166]="BlockMore",Zi[Zi.BlockAdditional=165]="BlockAdditional",Zi[Zi.BlockAddID=238]="BlockAddID",Zi[Zi.BlockDuration=155]="BlockDuration",Zi[Zi.ReferenceBlock=251]="ReferenceBlock",Zi[Zi.Cluster=524531317]="Cluster",Zi[Zi.Timestamp=231]="Timestamp",Zi[Zi.Cues=475249515]="Cues",Zi[Zi.CuePoint=187]="CuePoint",Zi[Zi.CueTime=179]="CueTime",Zi[Zi.CueTrackPositions=183]="CueTrackPositions",Zi[Zi.CueTrack=247]="CueTrack",Zi[Zi.CueClusterPosition=241]="CueClusterPosition",Zi[Zi.Colour=21936]="Colour",Zi[Zi.MatrixCoefficients=21937]="MatrixCoefficients",Zi[Zi.TransferCharacteristics=21946]="TransferCharacteristics",Zi[Zi.Primaries=21947]="Primaries",Zi[Zi.Range=21945]="Range",Zi[Zi.Projection=30320]="Projection",Zi[Zi.ProjectionType=30321]="ProjectionType",Zi[Zi.ProjectionPoseRoll=30325]="ProjectionPoseRoll",Zi[Zi.Attachments=423732329]="Attachments",Zi[Zi.AttachedFile=24999]="AttachedFile",Zi[Zi.FileDescription=18046]="FileDescription",Zi[Zi.FileName=18030]="FileName",Zi[Zi.FileMediaType=18016]="FileMediaType",Zi[Zi.FileData=18012]="FileData",Zi[Zi.FileUID=18094]="FileUID",Zi[Zi.Chapters=272869232]="Chapters",Zi[Zi.Tags=307544935]="Tags",Zi[Zi.Tag=29555]="Tag",Zi[Zi.Targets=25536]="Targets",Zi[Zi.TargetTypeValue=26826]="TargetTypeValue",Zi[Zi.TargetType=25546]="TargetType",Zi[Zi.TagTrackUID=25541]="TagTrackUID",Zi[Zi.TagEditionUID=25545]="TagEditionUID",Zi[Zi.TagChapterUID=25540]="TagChapterUID",Zi[Zi.TagAttachmentUID=25542]="TagAttachmentUID",Zi[Zi.SimpleTag=26568]="SimpleTag",Zi[Zi.TagName=17827]="TagName",Zi[Zi.TagLanguage=17530]="TagLanguage",Zi[Zi.TagString=17543]="TagString",Zi[Zi.TagBinary=17541]="TagBinary",Zi[Zi.ContentEncodings=28032]="ContentEncodings",Zi[Zi.ContentEncoding=25152]="ContentEncoding",Zi[Zi.ContentEncodingOrder=20529]="ContentEncodingOrder",Zi[Zi.ContentEncodingScope=20530]="ContentEncodingScope",Zi[Zi.ContentCompression=20532]="ContentCompression",Zi[Zi.ContentCompAlgo=16980]="ContentCompAlgo",Zi[Zi.ContentCompSettings=16981]="ContentCompSettings",Zi[Zi.ContentEncryption=20533]="ContentEncryption";const er=[Ji.EBML,Ji.Segment],tr=[Ji.SeekHead,Ji.Info,Ji.Cluster,Ji.Tracks,Ji.Cues,Ji.Attachments,Ji.Chapters,Ji.Tags],ir=[...er,...tr],rr=16,ar=e=>{if(e.remainingLength<1)return null;const t=po(e);if(e.skip(-1),0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;return e.remainingLength{if(e.remainingLength<1)return null;const t=po(e);if(0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;if(e.remainingLength{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let i=0;for(let r=0;r{const t=ar(e);if(null===t)return null;if(e.remainingLength{if(e.remainingLength<1)return null;if(255===po(e))return;e.skip(-1);const t=sr(e);return null===t?null:72057594037927940!==t?t:void 0},lr=e=>{i(e.remainingLength>=2);const t=or(e);if(null===t)return null;const r=cr(e);return null===r?null:{id:t,size:r}},ur=(e,t)=>{const i=mo(e,t);let r=0;for(;r{const i=mo(e,t);let r=0;for(;r{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?Bo(e):Eo(e)},fr=async(e,t,i,r)=>{const a=new Set(i);let s=t;for(;null===r||ss?r:s,found:!1}},mr=async(e,t,i,r)=>{const a=new Set(i);let s=t;for(;se.tracks.map(e=>e.trackBacking))}async getMimeType(){await this.readMetadata();const e=await this.getTrackBackings(),t=await Promise.all(e.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings.filter(Boolean))].join(", ")}"`);return t})({isWebM:this.isWebM,hasVideo:this.segments.some(e=>e.tracks.some(e=>"video"===e.info?.type)),hasAudio:this.segments.some(e=>e.tracks.some(e=>"audio"===e.info?.type)),codecStrings:t.filter(Boolean)})}async getMetadataTags(){await this.readMetadata();for(const t of this.segments)t.metadataTagsCollected||(null!==this.reader.fileSize&&await this.loadSegmentMetadata(t),t.metadataTagsCollected=!0);let e={};for(const t of this.segments)e={...e,...t.metadataTags};return e}readMetadata(){return this.readMetadataPromise??(this.readMetadataPromise=(async()=>{let e=0;for(;;){let t=this.reader.requestSliceRange(e,2,rr);if(ae(t)&&(t=await t),!t)break;const i=lr(t);if(!i)break;const r=i.id;let s=i.size;const n=t.filePos;if(r===Ji.EBML){Er(s);let e=this.reader.requestSlice(n,s);if(ae(e)&&(e=await e),!e)break;this.readContiguousElements(e)}else if(r===Ji.Segment){if(await this.readSegment(n,s),void 0===s)break;if(null===this.reader.fileSize)break}else if(r===Ji.Cluster){if(null===this.reader.fileSize)break;if(void 0===s){s=(await fr(this.reader,n,ir,this.reader.fileSize)).pos-n}const e=a(this.segments);e&&(e.elementEndPos=n+s)}Er(s),e=n+s}})())}async readSegment(e,t){this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:void 0===t?null:e+t,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let i=e;for(;null===this.currentSegment.elementEndPos||ie.id===a);if(-1!==o){const e=Nr[o].flag;this.currentSegment[e]=!0,Er(s);let t=this.reader.requestSlice(n,s);ae(t)&&(t=await t),t&&this.readContiguousElements(t)}else if(a===Ji.Tags||a===Ji.Attachments){a===Ji.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,Er(s);let e=this.reader.requestSlice(n,s);ae(e)&&(e=await e),e&&this.readContiguousElements(e)}else if(a===Ji.Cluster){this.currentSegment.clusterSeekStartPos=t;break}if(void 0===s)break;i=n+s}if(this.currentSegment.seekEntries.sort((e,t)=>e.segmentPosition-t.segmentPosition),null!==this.reader.fileSize)for(const n of this.currentSegment.seekEntries){const t=Nr.find(e=>e.id===n.id);if(!t)continue;if(this.currentSegment[t.flag])continue;let i=this.reader.requestSliceRange(e+n.segmentPosition,2,rr);if(ae(i)&&(i=await i),!i)continue;const r=lr(i);if(!r)continue;const{id:a,size:s}=r;if(a!==t.id)continue;Er(s),this.currentSegment[t.flag]=!0;let o=this.reader.requestSlice(i.filePos,s);ae(o)&&(o=await o),o&&this.readContiguousElements(o)}-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3);for(const n of this.currentSegment.tracks)null!==n.defaultDurationNs&&(n.defaultDuration=this.currentSegment.timestampFactor*n.defaultDurationNs/1e9);const r=new Map(this.currentSegment.tracks.map(e=>[e.id,e]));for(const n of this.currentSegment.cuePoints){const e=r.get(n.trackId);e&&e.cuePoints.push(n)}for(const n of this.currentSegment.tracks){n.cuePoints.sort((e,t)=>e.time-t.time);for(let e=0;es&&(s=n.cuePoints.length,a=n);for(const n of this.currentSegment.tracks)0===n.cuePoints.length&&(n.cuePoints=a.cuePoints);this.currentSegment=null}async readCluster(e,t){if(t.lastReadCluster?.elementStartPos===e)return t.lastReadCluster;let r=this.reader.requestSliceRange(e,2,rr);ae(r)&&(r=await r),i(r);const s=e,n=lr(r);i(n);i(n.id===Ji.Cluster);let o=n.size;const c=r.filePos;if(void 0===o){o=(await fr(this.reader,c,ir,t.elementEndPos)).pos-c}let l=this.reader.requestSlice(c,o);ae(l)&&(l=await l);const u={segment:t,elementStartPos:s,elementEndPos:c+o,dataStartPos:c,timestamp:-1,trackData:new Map};if(this.currentCluster=u,l){const e=this.readContiguousElements(l,ir);u.elementEndPos=e}for(const[,d]of u.trackData){const e=d.track;i(d.blocks.length>0);let t=!1;for(let i=0;i({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp);for(let i=0;i({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp));const r=d.blocks[d.presentationTimestamps[0].blockIndex],n=d.blocks[a(d.presentationTimestamps).blockIndex];d.startTimestamp=r.timestamp,d.endTimestamp=n.timestamp+n.duration;const o=x(e.clusterPositionCache,d.startTimestamp,e=>e.startTimestamp);-1!==o&&e.clusterPositionCache[o].elementStartPos===s||e.clusterPositionCache.splice(o+1,0,{elementStartPos:u.elementStartPos,startTimestamp:d.startTimestamp})}return t.lastReadCluster=u,u}getTrackDataInCluster(e,t){let i=e.trackData.get(t);if(!i){const r=e.segment.tracks.find(e=>e.id===t);if(!r)return null;i={track:r,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,i)}return i}expandLacedBlocks(e,t){for(let r=0;r=2;){const i=e.filePos;if(!this.traverseElement(e,t))return i}return e.filePos}traverseElement(e,t){const a=lr(e);if(!a)return!1;if(t&&t.includes(a.id))return!1;const{id:s,size:n}=a,o=e.filePos;switch(Er(n),s){case Ji.DocType:this.isWebM="webm"===ur(e,n);break;case Ji.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(o,n)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case Ji.SeekID:{const t=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=nr(e,n)}break;case Ji.SeekPosition:{const t=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=nr(e,n)}break;case Ji.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=nr(e,n),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case Ji.Duration:if(!this.currentSegment)break;this.currentSegment.duration=hr(e,n);break;case Ji.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:{...Se,primary:!1},trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(o,n)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>"decompress"!==e.data?.type||e.scope!==Fr.Block||e.data.algorithm!==Dr.HeaderStripping)&&(be._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){const e=this.currentTrack.codecId.indexOf("/"),t=-1===e?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,e);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,null!==this.currentTrack.info.displayWidth&&null!==this.currentTrack.info.displayHeight){const e=this.currentTrack.info.displayWidth*this.currentTrack.info.height,t=this.currentTrack.info.displayHeight*this.currentTrack.info.width;e>0&&t>0&&(e>t?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*e/t):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*t/e))}if(this.currentTrack.codecId===pr)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===gr)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===kr)this.currentTrack.info.codec="vp8";else if(t===yr)this.currentTrack.info.codec="vp9";else if(t===br)this.currentTrack.info.codec="av1";else if(t===wr){const e=this.currentTrack.codecPrivate?u.decode(this.currentTrack.codecPrivate):"";$t.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new Ur(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===Tr?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===Sr?this.currentTrack.info.codec="mp3":t===vr?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=Zt):t===Pr?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Ir?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===xr?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Cr?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Br?(this.currentTrack.info.codec="dts","A_DTS/EXPRESS"===this.currentTrack.codecId?this.currentTrack.info.dtsFormat="dtse":"A_DTS/LOSSLESS"===this.currentTrack.codecId&&(this.currentTrack.info.dtsFormat="dtsl")):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));const e=this.currentTrack;this.currentTrack.trackBacking=new qr(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case Ji.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=nr(e,n);break;case Ji.TrackType:{if(!this.currentTrack)break;const t=nr(e,n);1===t?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:{...b},alphaMode:!1,proresFormat:null}:2===t&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case Ji.FlagEnabled:if(!this.currentTrack)break;nr(e,n)||(this.currentTrack=null);break;case Ji.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!nr(e,n);break;case Ji.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!nr(e,n);break;case Ji.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!nr(e,n);break;case Ji.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!nr(e,n);break;case Ji.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!nr(e,n);break;case Ji.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!nr(e,n);break;case Ji.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=ur(e,n);break;case Ji.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=mo(e,n);break;case Ji.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=nr(e,n);break;case Ji.Name:if(!this.currentTrack)break;this.currentTrack.name=dr(e,n);break;case Ji.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=ur(e,n),V(this.currentTrack.languageCode)||(this.currentTrack.languageCode=O);break;case Ji.LanguageBCP47:{if(!this.currentTrack)break;const t=ur(e,n).split("-")[0];this.currentTrack.languageCode=t||O,this.currentTrack.hasLanguageBcp47=!0}break;case Ji.Video:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(o,n));break;case Ji.PixelWidth:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.width=nr(e,n);break;case Ji.PixelHeight:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.height=nr(e,n);break;case Ji.DisplayWidth:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayWidth=nr(e,n);break;case Ji.DisplayHeight:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayHeight=nr(e,n);break;case Ji.DisplayUnit:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayUnit=nr(e,n);break;case Ji.AlphaMode:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.alphaMode=1===nr(e,n);break;case Ji.Colour:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(o,n));break;case Ji.MatrixCoefficients:{if("video"!==this.currentTrack?.info?.type)break;const t=nr(e,n),i=k[t];this.currentTrack.info.colorSpace.matrix=i}break;case Ji.Range:{if("video"!==this.currentTrack?.info?.type)break;const t=nr(e,n);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case Ji.TransferCharacteristics:{if("video"!==this.currentTrack?.info?.type)break;const t=nr(e,n),i=p[t];this.currentTrack.info.colorSpace.transfer=i}break;case Ji.Primaries:{if("video"!==this.currentTrack?.info?.type)break;const t=nr(e,n),i=f[t];this.currentTrack.info.colorSpace.primaries=i}break;case Ji.Projection:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(o,n));break;case Ji.ProjectionPoseRoll:{if("video"!==this.currentTrack?.info?.type)break;const t=-hr(e,n);try{this.currentTrack.info.rotation=r(t)}catch{}}break;case Ji.Audio:if("audio"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(o,n));break;case Ji.SamplingFrequency:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.sampleRate=hr(e,n);break;case Ji.Channels:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.numberOfChannels=nr(e,n);break;case Ji.BitDepth:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.bitDepth=nr(e,n);break;case Ji.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(o,n)),this.currentCueTime=null;break;case Ji.CueTime:this.currentCueTime=nr(e,n);break;case Ji.CueTrackPositions:{if(null===this.currentCueTime)break;i(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(o,n)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case Ji.CueTrack:{const t=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=nr(e,n)}break;case Ji.CueClusterPosition:{const t=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;i(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+nr(e,n)}break;case Ji.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=nr(e,n);break;case Ji.SimpleBlock:{if(!this.currentCluster)break;const t=sr(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=bo(e),a=po(e),s=a>>1&3;let c=!!(128&a);"audio"===i.track.info?.type&&i.track.info.codec&&(c=!0);const l=mo(e,n-(e.filePos-o)),u=i.track.decodingInstructions.length>0;i.blocks.push({timestamp:r,duration:0,isKeyFrame:c,data:l,lacing:s,decoded:!u,postProcessed:!1,mainAdditional:null})}break;case Ji.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(o,n)),this.currentBlock=null;break;case Ji.Block:{if(!this.currentCluster)break;const t=sr(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=bo(e),a=po(e)>>1&3,s=mo(e,n-(e.filePos-o)),c=i.track.decodingInstructions.length>0;this.currentBlock={timestamp:r,duration:0,isKeyFrame:!0,data:s,lacing:a,decoded:!c,postProcessed:!1,mainAdditional:null},i.blocks.push(this.currentBlock)}break;case Ji.BlockAdditions:this.readContiguousElements(e.slice(o,n));break;case Ji.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(o,n)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case Ji.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=mo(e,n);break;case Ji.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=nr(e,n);break;case Ji.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=nr(e,n);break;case Ji.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case Ji.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(o,n));break;case Ji.Targets:this.readContiguousElements(e.slice(o,n));break;case Ji.TargetTypeValue:50!==nr(e,n)&&(this.currentTagTargetIsMovie=!1);break;case Ji.TagTrackUID:case Ji.TagEditionUID:case Ji.TagChapterUID:case Ji.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case Ji.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(o,n));break;case Ji.TagName:this.currentSimpleTagName=dr(e,n);break;case Ji.TagString:{if(!this.currentSimpleTagName)break;const t=dr(e,n);this.processTagValue(this.currentSimpleTagName,t)}break;case Ji.TagBinary:{if(!this.currentSimpleTagName)break;const t=mo(e,n);this.processTagValue(this.currentSimpleTagName,t)}break;case Ji.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(o,n));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(t.raw??(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new Te(this.currentAttachedFile.fileData,this.currentAttachedFile.fileMediaType??void 0,this.currentAttachedFile.fileName??void 0,this.currentAttachedFile.fileDescription??void 0)),this.currentAttachedFile.fileMediaType?.startsWith("image/")&&this.currentAttachedFile.fileData){const e=this.currentAttachedFile.fileName;let i="unknown";if(e){const t=e.toLowerCase();t.startsWith("cover.")?i="coverFront":t.startsWith("back.")&&(i="coverBack")}t.images??(t.images=[]),t.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:i,name:this.currentAttachedFile.fileName??void 0,description:this.currentAttachedFile.fileDescription??void 0})}this.currentAttachedFile=null}break;case Ji.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=((e,t)=>{if(t<1)throw new Error("Bad unsigned int size "+t);let i=0n;for(let r=0;rt.order-e.order);break;case Ji.ContentEncoding:this.currentDecodingInstruction={order:0,scope:Fr.Block,data:null},this.readContiguousElements(e.slice(o,n)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case Ji.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=nr(e,n);break;case Ji.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=nr(e,n);break;case Ji.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:Dr.Zlib,settings:null},this.readContiguousElements(e.slice(o,n));break;case Ji.ContentCompAlgo:if("decompress"!==this.currentDecodingInstruction?.data?.type)break;this.currentDecodingInstruction.data.algorithm=nr(e,n);break;case Ji.ContentCompSettings:if("decompress"!==this.currentDecodingInstruction?.data?.type)break;this.currentDecodingInstruction.data.settings=mo(e,n);break;case Ji.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=o+n,!0}decodeBlockData(e,t){i(e.decodingInstructions.length>0);let r=t;for(const a of e.decodingInstructions)if(i(a.data),"decompress"===a.data.type)if(a.data.algorithm===Dr.HeaderStripping)if(a.data.settings&&a.data.settings.length>0){const e=a.data.settings,t=new Uint8Array(e.length+r.length);t.set(e,0),t.set(r,e.length),r=t}return r}processTagValue(e,t){var i;if(!this.currentSegment?.metadataTags)return;const r=this.currentSegment.metadataTags;if(r.raw??(r.raw={}),(i=r.raw)[e]??(i[e]=t),"string"===typeof t)switch(e.toLowerCase()){case"title":r.title??(r.title=t);break;case"description":r.description??(r.description=t);break;case"artist":r.artist??(r.artist=t);break;case"album":r.album??(r.album=t);break;case"album_artist":r.albumArtist??(r.albumArtist=t);break;case"genre":r.genre??(r.genre=t);break;case"comment":r.comment??(r.comment=t);break;case"lyrics":r.lyrics??(r.lyrics=t);break;case"date":{const e=new Date(t);Number.isNaN(e.getTime())||(r.date??(r.date=e))}break;case"track_number":case"part_number":{const e=t.split("/"),i=Number.parseInt(e[0],10),a=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(r.trackNumber??(r.trackNumber=i)),a&&Number.isInteger(a)&&a>0&&(r.tracksTotal??(r.tracksTotal=a))}break;case"disc_number":case"disc":{const e=t.split("/"),i=Number.parseInt(e[0],10),a=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(r.discNumber??(r.discNumber=i)),a&&Number.isInteger(a)&&a>0&&(r.discsTotal??(r.discsTotal=a))}}}async getDurationFromMetadata(e){if(e.duration<=0)return null;let t=null;for(const a of e.tracks){i(a.trackBacking);const e=await a.trackBacking.getFirstPacket({metadataOnly:!0});e&&(t=Math.min(t??1/0,e.timestamp))}let r=e.duration/e.timestampFactor;return r+=t??0,r}}class zr{constructor(e){this.internalTrack=e,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.segments)for(const e of r.tracks)if(e.trackBacking.getType()===t&&i++,e===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)}async getLiveRefreshInterval(){return null}async getFirstPacket(e){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,e)}intoTimescale(e){return L(e*this.internalTrack.segment.timestampFactor)}async getPacket(e,t){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=x(t.presentationTimestamps,i,e=>e.timestamp);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id);if(i.blockIndex+1{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=R(t.presentationTimestamps,e=>t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=i);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i{if(e===r.cluster){const t=e.trackData.get(this.internalTrack.id).blocks.findIndex((e,t)=>e.isKeyFrame&&t>r.blockIndex);if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.blocks.findIndex(e=>e.isKeyFrame);return i(-1!==e),{blockIndex:e,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)}async fetchPacketInCluster(e,t,r){if(-1===t)return null;const a=e.trackData.get(this.internalTrack.id).blocks[t];if(i(a),a.decoded||(a.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,a.data),a.decoded=!0),!a.postProcessed){if("prores"===this.internalTrack.info?.codec){if(!(a.data.length>=8&&105===a.data[4]&&99===a.data[5]&&112===a.data[6]&&102===a.data[7])){const e=new Uint8Array(a.data.length+8);l(e).setUint32(0,e.length,!1),e[4]=105,e[5]=99,e[6]=112,e[7]=102,e.set(a.data,8),a.data=e}}a.postProcessed=!0}const s=r.metadataOnly?mi:a.data,n=a.timestamp/this.internalTrack.segment.timestampFactor,o=a.duration/this.internalTrack.segment.timestampFactor,c={};a.mainAdditional&&"video"===this.internalTrack.info?.type&&this.internalTrack.info.alphaMode&&(c.alpha=r.metadataOnly?mi:a.mainAdditional,c.alphaByteLength=a.mainAdditional.byteLength);const u=new pi(s,a.isKeyFrame?"key":"delta",n,o,e.dataStartPos+t,a.data.byteLength,c);return this.packetToClusterLocation.set(u,{cluster:e,blockIndex:t}),u}async performClusterLookup(e,t,r,a,s){const{demuxer:n,segment:o}=this.internalTrack;let c=null,l=null,u=-1;if(e){const{blockIndex:i,correctBlockFound:r}=t(e);if(r)return this.fetchPacketInCluster(e,i,s);-1!==i&&(l=e,u=i)}const d=x(this.internalTrack.cuePoints,r,e=>e.time),h=-1!==d?this.internalTrack.cuePoints[d]:null,f=x(this.internalTrack.clusterPositionCache,r,e=>e.startTimestamp),m=-1!==f?this.internalTrack.clusterPositionCache[f]:null,p=Math.max(h?.clusterPosition??0,m?.elementStartPos??0)||null;let g;for(e?null===p||e.elementStartPos>=p?(g=e.elementEndPos,c=e):g=p:g=p??o.clusterSeekStartPos;null===o.elementEndPos||g<=o.elementEndPos-2;){if(c){const e=c.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>a)break}let e=n.reader.requestSliceRange(g,2,rr);if(ae(e)&&(e=await e),!e)break;const r=g,d=lr(e);if(!d||!tr.includes(d.id)&&d.id!==Ji.Void){const e=await mr(n.reader,r,tr,Math.min(o.elementEndPos??1/0,r+Or));if(e){g=e;continue}break}const h=d.id;let f=d.size;const m=e.filePos;if(h===Ji.Cluster){c=await n.readCluster(r,o),f=c.elementEndPos-m;const{blockIndex:e,correctBlockFound:i}=t(c);if(i)return this.fetchPacketInCluster(c,e,s);-1!==e&&(l=c,u=e)}if(void 0===f){i(h!==Ji.Cluster);f=(await fr(n.reader,m,ir,o.elementEndPos)).pos-m}const p=m+f;if(null===o.elementEndPos){let e=n.reader.requestSliceRange(p,2,rr);if(ae(e)&&(e=await e),!e)break;if(or(e)===Ji.Segment){o.elementEndPos=p;break}}g=p}if(h&&(!l||l.elementStartPos{var e,t,i,r;let a=null;("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"prores"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription)&&(a=await this.getFirstPacket({}));const s={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:"avc"===this.internalTrack.info.codec&&a?He(a.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&a?Ze(a.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&a?dt(a.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&a?ft(a.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&a?mt(a.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!y(this.internalTrack.info.colorSpace)){const a=Yt(s);(e=this.internalTrack.info.colorSpace).primaries??(e.primaries=a.primaries),(t=this.internalTrack.info.colorSpace).transfer??(t.transfer=a.transfer),(i=this.internalTrack.info.colorSpace).matrix??(i.matrix=a.matrix),(r=this.internalTrack.info.colorSpace).fullRange??(r.fullRange=a.fullRange)}const n={codec:Qt(s),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(n.displayAspectWidth=this.internalTrack.info.squarePixelWidth,n.displayAspectHeight=this.internalTrack.info.squarePixelHeight),n})()):null}}class qr extends zr{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Ot(e.data)}return{codec:Jt({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})()):null}}const Wr=async(e,t,i,r=null)=>{let a=t;for(;null===i||a=4;){const t=s.filePos,i=To(s),n=null!==e.fileSize?e.fileSize-a:null,o=ci(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&hi(o.header.channel)===hi(r.channel)))return{header:o.header,startPos:a};s.filePos=t+o.bytesAdvanced,a=s.filePos}}return null};class Hr extends fi{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.xingFrameHeader=null,this.xingFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new T,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new Vr(this)]})())}async advanceReader(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,Oo);if(ae(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=qo(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=await Wr(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e)return void(this.lastSampleLoaded=!0);const t=e.header;this.lastLoadedPos=e.startPos+t.totalSize-1;const i=oi(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(ae(r)&&(r=await r),r){const a=To(r);if(a===si||a===ni){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(ae(t)&&(t=await t),t){const e=mo(t,12),i=l(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&ui.FrameCount?i.getUint32(4,!1):null,fileSize:r&ui.FileSize?i.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=t,this.firstFrameHeaderPos=e.startPos);const a=t.audioSamplesInFrame/this.firstFrameHeader.sampleRate,s={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:a,dataStart:e.startPos,dataSize:t.totalSize};this.loadedSamples.push(s),this.nextTimestampInSamples+=t.audioSamplesInFrame}async getMimeType(){return"audio/mpeg"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0,t=!1;for(;;){let i=this.reader.requestSlice(e,Oo);if(ae(i)&&(i=await i),!i)break;const r=qo(i);if(!r)break;t=!0;let a=this.reader.requestSlice(i.filePos,r.size);if(ae(a)&&(a=await a),!a)break;Wo(a,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=No){let e=this.reader.requestSlice(this.reader.fileSize-No,No);ae(e)&&(e=await e),i(e);"TAG"===_o(e,3)&&zo(e,this.metadataTags)}return this.metadataTags}finally{e()}}}class Vr{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return i(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const e=this.demuxer;if(i(null!==e.firstFrameHeader),i(null!==e.firstFrameHeaderPos),e.xingData){if(null!==e.xingData.frameCount)return e.xingData.frameCount*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}else if(null!==e.reader.fileSize){const i=(t=e.firstFrameHeader.lowSamplingFrequency,r=e.firstFrameHeader.layer,a=e.firstFrameHeader.bitrate,s=e.firstFrameHeader.sampleRate,0===r?0:1===r?144*a/(s<e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}}async getPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=x(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1>>0&4294967295}const Xr=e=>{const t=l(e),i=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let a=0;a>>24^t])>>>0}return t.setUint32(22,i,!0),r},$r=(e,t,r)=>{let a=0,s=null;if(e.length>0)if("vorbis"===t.codec){i(t.vorbisInfo);const n=(1<<(e=>{let t=0;for(;e;)t++,e>>=1;return t})(t.vorbisInfo.modeBlockflags.length-1))-1<<1,o=(e[0]&n)>>1;if(o>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let c=r;const l=t.vorbisInfo.modeBlockflags[o];if(s=t.vorbisInfo.blocksizes[l],1===l){const i=1+(1|n),r=e[0]&i?1:0;c=t.vorbisInfo.blocksizes[r]}a=null!==c?c+s>>2:0}else if("opus"===t.codec){a=(e=>{const t=e[0]>>3,i=3&e[0];let r;return r=0===i?1:1===i||2===i?2:63&e[1],{durationInSamples:pt[t]*r}})(e).durationInSamples}return{durationInSamples:a,vorbisBlockSize:s}},Gr=27,Qr=282,Yr=e=>{const t=e.filePos;if(So(e)!==jr)return null;e.skip(1);const i=po(e),r=Co(e),a=So(e),s=So(e),n=So(e),o=po(e),c=new Uint8Array(o);for(let d=0;de+t,0);return{headerStartPos:t,totalSize:l+u,dataStartPos:t+l,dataSize:u,headerType:i,granulePosition:r,serialNumber:a,sequenceNumber:s,checksum:n,lacingValues:c}},Jr=(e,t)=>{for(;e.filePos>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===jr)return!0;e.skip(1)}}return!1};class Zr extends fi{constructor(e){super(e),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=0;for(;;){let t=this.reader.requestSliceRange(e,Gr,Qr);if(ae(t)&&(t=await t),!t)break;const i=Yr(t);if(!i)break;if(!!!(2&i.headerType))break;this.bitstreams.push({serialNumber:i.serialNumber,bosPage:i,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=i.headerStartPos+i.totalSize}for(const t of this.bitstreams){const e=await this.readPacket(t.bosPage,0);e&&(e.data.byteLength>=7&&1===e.data[0]&&118===e.data[1]&&111===e.data[2]&&114===e.data[3]&&98===e.data[4]&&105===e.data[5]&&115===e.data[6]?await this.readVorbisMetadata(e,t):e.data.byteLength>=8&&79===e.data[0]&&112===e.data[1]&&117===e.data[2]&&115===e.data[3]&&72===e.data[4]&&101===e.data[5]&&97===e.data[6]&&100===e.data[7]&&await this.readOpusMetadata(e,t),null!==t.codecInfo.codec&&this.trackBackings.push(new ea(t,this)))}})())}async readVorbisMetadata(e,t){let i=await this.findNextPacketStart(e);if(!i)return;const r=await this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;if(i=await this.findNextPacketStart(r),!i)return;const a=await this.readPacket(i.startPage,i.startSegmentIndex);if(!a)return;if(3!==r.data[0]||5!==a.data[0])return;const s=[],n=e=>{for(;s.push(Math.min(255,e)),!(e<255);)e-=255};n(e.data.length),n(r.data.length);const o=new Uint8Array(1+s.length+e.data.length+r.data.length+a.data.length);o[0]=2,o.set(s,1),o.set(e.data,1+s.length),o.set(r.data,1+s.length+e.data.length),o.set(a.data,1+s.length+e.data.length+r.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=a;const c=l(e.data);t.numberOfChannels=c.getUint8(11),t.sampleRate=c.getUint32(12,!0);const u=c.getUint8(28);t.codecInfo.vorbisInfo={blocksizes:[1<<(15&u),1<<(u>>4)],modeBlockflags:gt(a.data).modeBlockflags},wt(r.data.subarray(7),this.metadataTags)}async readOpusMetadata(e,t){const i=await this.findNextPacketStart(e);if(!i)return;const r=await this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=r;const a=(e=>{const t=l(e),i=t.getUint8(9),r=t.getUint16(10,!0),a=t.getUint32(12,!0),s=t.getInt16(16,!0),n=t.getUint8(18);let o=null;return n&&(o=e.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:a,outputGain:s,channelMappingFamily:n,channelMappingTable:o}})(e.data);t.numberOfChannels=a.outputChannelCount,t.sampleRate=Zt,t.codecInfo.opusInfo={preSkip:a.preSkip},wt(r.data.subarray(8),this.metadataTags)}async readPacket(e,t){i(te+t.length,0);if(0===c)return null;const l=new Uint8Array(c);let u=0;for(let i=0;i{let t="audio/ogg";e.codecStrings&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({codecStrings:(await Promise.all(this.trackBackings.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)))).filter(Boolean)})}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}class ea{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new T,this.internalSampleRate="opus"===e.codecInfo.codec?Zt:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return i(-1!==e),e+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}async getDecoderConfig(){return i(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:this.bitstream.description??void 0}}getName(){return null}getLanguageCode(){return O}getDisposition(){return{...Se,primary:!1}}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(i(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:a}=$r(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new pi(i.metadataOnly?mi:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,r/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:r,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:a}),s}async getFirstPacket(e){i(this.bitstream.lastMetadataPacket);const t=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let r=0;"opus"===this.bitstream.codecInfo.codec&&(i(this.bitstream.codecInfo.opusInfo),r-=this.bitstream.codecInfo.opusInfo.preSkip);const a=await this.demuxer.readPacket(t.startPage,t.startSegmentIndex);return this.createEncodedPacketFromOggPacket(a,{timestampInSamples:r,vorbisLastBlocksize:null},e)}async getNextPacket(e,t){const i=this.encodedPacketToMetadata.get(e);if(!i)throw new Error("Packet was not created from this track.");const r=await this.demuxer.findNextPacketStart(i.packet);if(!r)return null;const a=i.timestampInSamples+i.durationInSamples,s=await this.demuxer.readPacket(r.startPage,r.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:a,vorbisLastBlocksize:i.vorbisBlockSize},t)}async getPacket(e,t){if(null===this.demuxer.reader.fileSize)return this.getPacketSequential(e,t);const r=L(e*this.internalSampleRate);if(0===r)return this.getFirstPacket(t);if(r<0)return null;i(this.bitstream.lastMetadataPacket);const a=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!a)return null;let s=a.startPage,n=this.demuxer.reader.fileSize;const o=[s];e:for(;s.headerStartPos+s.totalSizer?n=u.headerStartPos:(s=u,o.push(u));continue e}a=u.headerStartPos+u.totalSize}}let c=a.startPage;for(const i of o){if(i.granulePosition===s.granulePosition)break;(!c||i.headerStartPos>c.headerStartPos)&&(c=i)}let l=c;const u=[l];for(;l.serialNumber!==this.bitstream.serialNumber||l.granulePosition!==s.granulePosition;){const e=l.headerStartPos+l.totalSize;let t=this.demuxer.reader.requestSliceRange(e,Gr,Qr);ae(t)&&(t=await t),i(t);const r=Yr(t);i(r),l=r,l.serialNumber===this.bitstream.serialNumber&&u.push(l)}i(-1!==l.granulePosition);let d,h,f=null,m=l,p=0;if(l.headerStartPos===a.startPage.headerStartPos)d=this.granulePositionToTimestampInSamples(0),h=!0,f=0;else{d=0,h=!1;for(let t=l.lacingValues.length-1;t>=0;t--){if(l.lacingValues[t]<255){f=t+1;break}}if(null===f)throw new Error("Invalid page with granule position: no packets end on this page.");p=f-1;const e={data:mi,endPage:m,endSegmentIndex:p};if(await this.demuxer.findNextPacketStart(e)){const e=ia(u,l,f);i(e);const t=ta(u,e.page,e.segmentIndex);t&&(l=t.page,f=t.segmentIndex)}else for(;;){const e=ia(u,l,f);if(!e)break;const t=ta(u,e.page,e.segmentIndex);if(!t)break;if(l=t.page,f=t.segmentIndex,e.page.headerStartPos!==m.headerStartPos){m=e.page,p=e.segmentIndex;break}}}let g=null,k=null;for(;null!==l;){i(null!==f);const e=await this.demuxer.readPacket(l,f);if(!e)break;if(!(l.headerStartPos===a.startPage.headerStartPos&&fr||Math.max(s.timestampInSamples,0)===r))break}const s=await this.demuxer.findNextPacketStart(e);if(!s)break;l=s.startPage,f=s.startSegmentIndex}return g}async getPacketSequential(e,t){const r=await this.sequentialScanMutex.acquire();try{const r=L(e*this.internalSampleRate);e=r/this.internalSampleRate;const s=x(this.sequentialScanCache,r,e=>e.timestampInSamples);let n;if(-1!==s){const e=this.sequentialScanCache[s];n=this.createEncodedPacketFromOggPacket(e.packet,{timestampInSamples:e.timestampInSamples,vorbisLastBlocksize:e.vorbisLastBlockSize},t)}else n=await this.getFirstPacket(t);let o=0;for(;n&&n.timestampe)break;if(n=r,o++,100===o){o=0;const e=this.encodedPacketToMetadata.get(n);i(e),this.sequentialScanCache.length>0&&i(a(this.sequentialScanCache).timestampInSamples<=e.timestampInSamples),this.sequentialScanCache.push(e)}}return n}finally{r()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const ta=(e,t,r)=>{let a=t,s=r;e:for(;;){for(s--;s>=0;s--){if(a.lacingValues[s]<255){s++;break e}}i(-1===s);if(!(1&a.headerType)){s=0;break}const t=_(e,e=>e.headerStartPos{if(i>0)return{page:t,segmentIndex:i-1};const r=_(e,e=>e.headerStartPos{let e=this.reader.requestSlice(0,12);ae(e)&&(e=await e),i(e);const t=_o(e,4),r="RIFX"!==t,a="RF64"===t,s=wo(e,r);let n=a?this.reader.fileSize:Math.min(s+8,this.reader.fileSize??1/0);if("WAVE"!==_o(e,4))throw new Error("Invalid WAVE file - wrong format");let o=0,c=null,l=e.filePos;for(;null===n||l=18&&357!==a){const e=go(r,i),s=t-18;if(Math.min(s,e)>=22&&a===ra.EXTENSIBLE){r.skip(6);const e=mo(r,16);a=e[0]|e[1]<<8}}if(a!==ra.MULAW&&a!==ra.ALAW||(c=8),a!==ra.PCM&&a!==ra.IEEE_FLOAT&&a!==ra.ALAW&&a!==ra.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${a}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(a===ra.PCM&&![8,16,24,32].includes(c))throw new Error(`Unsupported WAVE PCM bit depth (${c}). Only 8, 16, 24, and 32 bits are supported.`);if(a===ra.IEEE_FLOAT&&![32,64].includes(c))throw new Error(`Unsupported WAVE float bit depth (${c}). Only 32 and 64 bits are supported.`);this.audioInfo={format:a,numberOfChannels:s,sampleRate:n,sampleSizeInBytes:Math.ceil(c/8),blockSizeInBytes:o}}async parseListChunk(e,t,i){var r,a,s,n,o,c,l,u,d,h,f;let m=this.reader.requestSlice(e,t);if(ae(m)&&(m=await m),!m)return;const p=_o(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=_o(m,4),t=wo(m,i),p=mo(m,t);let k=0;for(let i=0;i0&&((c=this.metadataTags).trackNumber??(c.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&((l=this.metadataTags).tracksTotal??(l.tracksTotal=i))}break;case"ICRD":case"IDIT":{const e=new Date(y);Number.isNaN(e.getTime())||((u=this.metadataTags).date??(u.date=e))}break;case"YEAR":{const e=Number.parseInt(y,10);Number.isInteger(e)&&e>0&&((d=this.metadataTags).date??(d.date=new Date(e,0,1)))}break;case"IGNR":case"GENR":(h=this.metadataTags).genre??(h.genre=y);break;case"ICMT":case"CMNT":case"COMM":(f=this.metadataTags).comment??(f.comment=y)}g+=8+t+(1&t)}}async parseId3Chunk(e,t){let i=this.reader.requestSlice(e,t);if(ae(i)&&(i=await i),!i)return;const r=qo(i);if(r){const a=t-Oo;if(r.size=Math.min(r.size,a),r.size>0){const t=i.slice(e+Oo,r.size);Wo(t,r,this.metadataTags)}}}getCodec(){if(i(this.audioInfo),this.audioInfo.format===ra.MULAW)return"ulaw";if(this.audioInfo.format===ra.ALAW)return"alaw";if(this.audioInfo.format===ra.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}if(this.audioInfo.format===ra.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}i(!1)}async getMimeType(){return"audio/wav"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}const na=2048;class oa{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return i(this.demuxer.audioInfo),this.demuxer.audioInfo.format}async getDecoderConfig(){const e=this.demuxer.getCodec();return e?(i(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null}getNumberOfChannels(){return i(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return i(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return i(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return i(-1!==this.demuxer.dataSize),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return O}getDisposition(){return{...Se}}async getPacketAtIndex(e,t){i(e>=0),i(this.demuxer.audioInfo);const r=e*na*this.demuxer.audioInfo.blockSizeInBytes;if(r>=this.demuxer.dataSize)return null;const a=Math.min(na*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-r);if(null===this.demuxer.reader.fileSize){let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+r,a);if(ae(e)&&(e=await e),!e)return null}let s;if(t.metadataOnly)s=mi;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+r,a);ae(e)&&(e=await e),i(e),s=mo(e,a)}const n=e*na/this.demuxer.audioInfo.sampleRate,o=a/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(e,this.demuxer.lastKnownPacketIndex),new pi(s,"key",n,o,e,a)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getPacket(e,t){i(this.demuxer.audioInfo);const r=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/na,(this.demuxer.dataSize-1)/(na*this.demuxer.audioInfo.blockSizeInBytes)));if(r<0)return null;const a=await this.getPacketAtIndex(r,t);if(a)return a;if(0===r)return null;i(null===this.demuxer.reader.fileSize);let s=await this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,t);for(;s;){const e=await this.getNextPacket(s,t);if(!e)break;s=e}return s}getNextPacket(e,t){i(this.demuxer.audioInfo);const r=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/na);return this.getPacketAtIndex(r+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const ca=e=>{const t=e.filePos,i=mo(e,9),r=new ve(i);if(4095!==r.readBits(12))return null;r.skipBits(1);if(0!==r.readBits(2))return null;const a=r.readBits(1),s=r.readBits(2)+1,n=r.readBits(4);if(15===n)return null;r.skipBits(1);const o=r.readBits(3);if(0===o)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const c=r.readBits(13);r.skipBits(11);const l=r.readBits(2)+1;if(1!==l)throw new Error("ADTS frames with more than one AAC frame are not supported.");let u=null;return 1===a?e.filePos-=2:u=r.readBits(16),{objectType:s,samplingFrequencyIndex:n,channelConfiguration:o,frameLength:c,numberOfAacFrames:l,crcCheck:u,startPos:t}},la=1024;class ua extends fi{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new T,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();i(this.firstFrameHeader),this.trackBackings=[new da(this)]})())}async advanceReader(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,Oo);if(ae(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=qo(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(ae(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=ca(e);if(!t)return void(this.lastSampleLoaded=!0);if(null!==this.reader.fileSize&&t.startPos+t.frameLength>this.reader.fileSize)return void(this.lastSampleLoaded=!0);this.firstFrameHeader||(this.firstFrameHeader=t);const r=Pe[t.samplingFrequencyIndex];i(void 0!==r);const a=la/r,s={timestamp:this.nextTimestampInSamples/r,duration:a,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(s),this.nextTimestampInSamples+=la,this.lastLoadedPos=t.startPos+t.frameLength}async getMimeType(){return"audio/aac"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0;for(;;){let t=this.reader.requestSlice(e,Oo);if(ae(t)&&(t=await t),!t)break;const i=qo(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(ae(r)&&(r=await r),!r)break;Wo(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}}}class da{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/la}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return O}getCodec(){return"aac"}getInternalCodecId(){return i(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){i(this.demuxer.firstFrameHeader);const e=Ie[this.demuxer.firstFrameHeader.channelConfiguration];return i(void 0!==e),e}getSampleRate(){i(this.demuxer.firstFrameHeader);const e=Pe[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return i(void 0!==e),e}getDisposition(){return{...Se}}async getDecoderConfig(){return i(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}}async getPacketAtIndex(e,t){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=mi;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(ae(e)&&(e=await e),!e)return null;r=mo(e,i.dataSize)}return new pi(r,"key",i.timestamp,i.duration,e,i.dataSize)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=I(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}}async getPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=x(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1{var e;let t=0;for(;;){let e=this.reader.requestSlice(t,Oo);if(ae(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const r=qo(e);if(!r)break;let a=this.reader.requestSlice(e.filePos,r.size);ae(a)&&(a=await a),i(a),Wo(a,r,this.metadataTags),t=e.filePos+r.size}for(t+=4;null===this.reader.fileSize||tn.end-6)return{num:o.num,blockSize:o.blockSize,sampleRate:o.sampleRate,size:n.end-e,isLastFrame:!0};if(255===po(n)){const t=n.filePos;if(po(n)!==(1===this.blockingBit?249:248)){n.filePos=t;continue}n.skip(-2);const i=n.filePos-e,r=this.readFlacFrameHeader({slice:n,isFirstPacket:!1});if(!r){n.filePos=t;continue}if(0===this.blockingBit){if(r.num-o.num!==1){n.filePos=t;continue}}else if(r.num-o.num!==o.blockSize){n.filePos=t;continue}return{num:o.num,blockSize:o.blockSize,sampleRate:o.sampleRate,size:i,isLastFrame:!1}}}}readFlacFrameHeader({slice:e,isFirstPacket:t}){const r=e.filePos,a=mo(e,4),s=new ve(a);if(32764!==s.readBits(15))return null;if(null===this.blockingBit){i(t);const e=s.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){i(!t);if(1!==s.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");i(!t);if(0!==s.readBits(1))return null}const n=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*2**e:6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?2**e:null)(s.readBits(4));if(!n)return null;i(this.audioInfo);const o=((e,t)=>{switch(e){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}})(s.readBits(4),this.audioInfo.sampleRate);if(!o)return null;s.readBits(4),s.readBits(3);if(0!==s.readBits(1))return null;const c=(e=>{let t=0;const i=new ve(mo(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],a=t-1,s=new ve(mo(e,a)),n=8-t-1;for(let o=0;oe|t<"uncommon-u16"===t?ko(e)+1:"uncommon-u8"===t?po(e)+1:"number"===typeof t?t:(F(t),void i(!1)))(e,n),u=((e,t)=>"uncommon-u16"===t?ko(e):"uncommon-u16-10"===t?10*ko(e):"uncommon-u8"===t?po(e):"number"===typeof t?t:null)(e,o);if(null===u)return null;if(u!==this.audioInfo.sampleRate)return null;const d=e.filePos-r,h=po(e);e.skip(-d),e.skip(-1);const f=(e=>{let t=0;for(const i of e){t^=i;for(let e=0;e<8;e++)0!==(128&t)?t=t<<1^7:t<<=1,t&=255}return t})(mo(e,d));return h!==f?null:{num:c,blockSize:l,sampleRate:u}}async advanceReader(){await this.readMetadata(),i(null!==this.lastLoadedPos),i(this.audioInfo);const e=this.lastLoadedPos,t=await this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length});if(!t)return void(this.lastSampleLoaded=!0);const r=this.loadedSamples[this.loadedSamples.length-1],a={blockOffset:r?r.blockOffset+r.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size};this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(a),t.isLastFrame&&(this.lastSampleLoaded=!0)}}class fa{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return i(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return i(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return O}getTimeResolution(){return i(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return i(this.demuxer.audioInfo),0===this.demuxer.audioInfo.totalSamples?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getDisposition(){return{...Se}}async getDecoderConfig(){return i(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}}async getPacket(e,t){if(i(this.demuxer.audioInfo),e<0)return null;const r=await this.demuxer.readingMutex.acquire();try{for(;;){const i=x(this.demuxer.loadedSamples,e,e=>e.blockOffset/this.demuxer.audioInfo.sampleRate);if(-1===i){await this.demuxer.advanceReader();continue}const r=this.demuxer.loadedSamples[i],a=r.blockOffset/this.demuxer.audioInfo.sampleRate;if(!(a+r.blockSize/this.demuxer.audioInfo.sampleRate<=e))return this.getPacketAtIndex(i,t);if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t);await this.demuxer.advanceReader()}}finally{r()}}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=e.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&i>=this.demuxer.loadedSamples.length)return null;for(;i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(i,t)}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}async getPacketAtIndex(e,t){const r=this.demuxer.loadedSamples[e];if(!r)return null;let a;if(t.metadataOnly)a=mi;else{let e=this.demuxer.reader.requestSlice(r.byteOffset,r.byteSize);if(ae(e)&&(e=await e),!e)return null;a=mo(e,r.byteSize)}i(this.demuxer.audioInfo);const s=r.blockOffset/this.demuxer.audioInfo.sampleRate,n=r.blockSize/this.demuxer.audioInfo.sampleRate;return new pi(a,"key",s,n,e,r.byteSize)}async getFirstPacket(e){for(;0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(0,e)}}const ma=9e4,pa=2**33,ga=188,ka="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",ya=new Set([133,134,162]),ba=new Set;class wa extends fi{constructor(e){super(e),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5242880,this.minReferencePointByteDistance=-1,this.timestampWrapInfo=null,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=this.reader.requestSlice(0,205);ae(e)&&(e=await e),i(e);const t=mo(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=ga;else if(71===t[0]&&71===t[204])this.packetOffset=0,this.packetStride=204;else{if(71!==t[4]||71!==t[196])throw new Error("Unreachable.");this.packetOffset=4,this.packetStride=192}this.minReferencePointByteDistance=256*this.packetStride;let r=this.packetOffset,a=null,s=!1,n=!1;for(;;){const e=await this.readPacketHeader(r);if(!e)break;if(0===e.payloadUnitStartIndicator){r+=this.packetStride;continue}if(n&&!this.elementaryStreams.some(t=>t.pid===e.pid)){r+=this.packetStride;continue}const t=await this.readSection(r,!0,!n);if(!t)break;const o=3,c=32;let l=!1;if(!n&&0!==t.pid){if(!(0===t.payload[0]&&0===t.payload[1]&&1===t.payload[2])){const e=new ve(t.payload),i=e.readAlignedByte();e.skipBits(8*i);l=2===e.readBits(8)}}if(0!==t.pid||s)if(t.pid!==a&&!l||n){const e=this.elementaryStreams.find(e=>e.pid===t.pid);e:if(e&&!e.initialized){const r=Sa(this,t,!0);if(!r)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${e.pid}`);if(e.firstSection=t,e.canBeTrustedWithKeyPackets=1===t.randomAccessIndicator,this.input._initInput){const i=(await this.input._initInput._getDemuxer()).elementaryStreams.find(i=>i.pid===t.pid&&i.info.codec===e.info.codec);if(i){e.info=i.info,e.initialized=!0;break e}}const a=new Ca(e,r);if("video"===e.info.type){for(;;){if(a.suppliedPacket=null,await a.markNextPacket(),"avc"===e.info.codec){if(!a.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(e.info.avcCodecInfo=He(a.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];i(t);const r=Xe(t);e.info.width=r.displayWidth,e.info.height=r.displayHeight;const s=r.pixelAspectRatio.num,n=r.pixelAspectRatio.den;s>0&&n>0&&(s>n?(e.info.squarePixelWidth=Math.round(e.info.width*s/n),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*n/s))),e.info.colorSpace={primaries:f[r.colourPrimaries],transfer:p[r.transferCharacteristics],matrix:k[r.matrixCoefficients],fullRange:!!r.fullRangeFlag},e.info.reorderSize=r.maxDecFrameBuffering;break}if("hevc"===e.info.codec){if(!a.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(e.info.hevcCodecInfo=Ze(a.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===Ae.SPS_NUT).nalUnits[0];i(t);const r=Je(t);e.info.width=r.displayWidth,e.info.height=r.displayHeight,r.pixelAspectRatio.num>r.pixelAspectRatio.den?(e.info.squarePixelWidth=Math.round(e.info.width*r.pixelAspectRatio.num/r.pixelAspectRatio.den),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*r.pixelAspectRatio.den/r.pixelAspectRatio.num)),e.info.colorSpace={primaries:f[r.colourPrimaries],transfer:p[r.transferCharacteristics],matrix:k[r.matrixCoefficients],fullRange:!!r.fullRangeFlag},e.info.reorderSize=r.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:Qt({width:e.info.width,height:e.info.height,codec:e.info.codec,codecDescription:null,colorSpace:e.info.colorSpace,avcType:1,avcCodecInfo:e.info.avcCodecInfo,hevcCodecInfo:e.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:e.info.width,codedHeight:e.info.height,colorSpace:e.info.colorSpace},e.info.width===e.info.squarePixelWidth&&e.info.height===e.info.squarePixelHeight||(e.info.decoderConfig.displayAspectWidth=e.info.squarePixelWidth,e.info.decoderConfig.displayAspectHeight=e.info.squarePixelHeight),e.initialized=!0}else{if(await a.markNextPacket(),!a.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${e.pid}`);if("aac"===e.info.codec){const t=ho.tempFromBytes(a.suppliedPacket.data),i=ca(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=Ie[i.channelConfiguration],e.info.sampleRate=Pe[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=To(ho.tempFromBytes(a.suppliedPacket.data)),i=ci(t,a.suppliedPacket.data.byteLength);if(!i.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");e.info.numberOfChannels=hi(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=St(a.suppliedPacket.data);if(!t)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(3===t.fscod)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Tt[t.acmod]+t.lfeon,e.info.sampleRate=Ee[t.fscod]}else if("eac3"===e.info.codec){const t=It(a.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=xt(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Ct(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=Nt(a.suppliedPacket.data);if(!t)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");e.info.numberOfChannels=t.numberOfChannels,e.info.sampleRate=t.sampleRate,t.core&&(e.info.dtsFormat=t.hasExtensions?"dtsh":"dtsc")}}e.info.decoderConfig={codec:Jt({codec:e.info.codec,codecDescription:null,aacCodecInfo:e.info.aacCodecInfo,dtsFormat:e.info.dtsFormat}),numberOfChannels:e.info.numberOfChannels,sampleRate:e.info.sampleRate},e.initialized=!0}}}else{const e=new ve(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(12);const r=e.readBits(12);e.skipBits(43),e.readBits(13),e.skipBits(6);const a=e.readBits(10),s=e.pos+8*a;let l=!1;for(;e.pos=4){const t=e.readBits(32);l||(l=1212435798===t||1212436562===t)}e.pos=r}for(e.pos=s;8*(r+o)-e.pos>c;){const t=e.readBits(8);e.skipBits(3);const i=e.readBits(13);e.skipBits(6);const r=e.readBits(10),a=e.pos+8*r;let s=!1,n=!1,o=!1;for(;e.pos=4){const t=e.readBits(32);o||(o=1146376960===(4294967040&t))}e.pos=r}let c=null;const u=l&&ya.has(t)?130:t;switch(u){case 27:case 36:c={type:"video",codec:27===t?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let e;e=3===u||4===u?"mp3":15===u?"aac":129===u?"ac3":135===u?"eac3":"dts",c={type:"audio",codec:e,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:n?c={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:s?c={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:o&&(c={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:ba.has(t)||(be._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),ba.add(t))}c&&this.elementaryStreams.push({demuxer:this,pid:i,streamType:t,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:c,referencePesPackets:[]})}n=!0}else{const e=new ve(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(14);const r=e.readBits(10);for(e.skipBits(40);8*(r+o)-e.pos>c;){const t=e.readBits(16);e.skipBits(3);const i=e.readBits(13);if(0!==t){if(null!==a)throw new Error("Only files with a single program are supported.");a=i}}if(null===a)throw new Error("Program Association Table must link to a Program Map Table.");s=!0}if(n&&this.elementaryStreams.every(e=>e.initialized))break;r+=this.packetStride}if(!n){if(!s)throw new Error("No Program Association Table found in the file.");throw new Error("No Program Map Table found in the file.")}for(const i of this.elementaryStreams)i.initialized&&("video"===i.info.type?this.trackBackingEntries.push(new Pa(i)):this.trackBackingEntries.push(new Ia(i)))})())}async getTrackBackings(){return await this.readMetadata(),this.trackBackingEntries}async getMetadataTags(){return{}}async getMimeType(){await this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${i.join(", ")}"`),t})(await Promise.all(this.trackBackingEntries.map(e=>e.getDecoderConfig().then(e=>e?.codec??null))))}async readSection(e,t,i=!1){let r=e,a=e;const s=[];let n,o=0,c=null,l=!0,u=0;for(;;){const e=await this.readPacket(a);if(a+=this.packetStride,!e)break;if(c){if(e.pid!==c.pid){if(i)break;continue}if(1===e.payloadUnitStartIndicator)break}else{if(0===e.payloadUnitStartIndicator)break;c=e}const n=!!(2&e.adaptationFieldControl),d=!!(1&e.adaptationFieldControl);let h=0;if(n&&(h=1+e.body[0],e===c&&h>1&&(u=e.body[1]>>6&1)),d&&(0===h?(s.push(e.body),o+=e.body.byteLength):(s.push(e.body.subarray(h)),o+=e.body.byteLength-h)),r=a,!t&&o>=64){l=!1;break}if(-1!==I(this.sectionEndPositions,r,e=>e)){l=!1;break}}if(l){const e=x(this.sectionEndPositions,r,e=>e);this.sectionEndPositions.splice(e+1,0,r)}if(!c)return null;if(1===s.length)n=s[0];else{const e=s.reduce((e,t)=>e+t.length,0);n=new Uint8Array(e);let t=0;for(const i of s)n.set(i,t),t+=i.length}return{startPos:e,endPos:t?r:null,pid:c.pid,payload:n,randomAccessIndicator:u}}async readPacketHeader(e){let t=this.reader.requestSlice(e,4);if(ae(t)&&(t=await t),!t)return null;if(71!==po(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=ko(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:po(t)>>4&3}}async readPacket(e){let t=this.reader.requestSlice(e,ga);if(ae(t)&&(t=await t),!t)return null;const i=mo(t,ga);if(71!==i[0])throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const r=(i[1]<<8)+i[2];return{payloadUnitStartIndicator:r>>14&1,pid:8191&r,adaptationFieldControl:i[3]>>4&3,body:i.subarray(4)}}normalizeTimestamp(e){if(!this.timestampWrapInfo){const t=54e5;this.timestampWrapInfo={reference:e-t,offset:e>=pa-t?-8589934592:pa}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e{if(t.payload.byteLength<3)return null;const r=new ve(t.payload);if(1!==r.readBits(24))return null;const a=r.readBits(8);if(r.skipBits(16),188===a||190===a||191===a||240===a||241===a||255===a||242===a||248===a)return null;r.skipBits(8);const s=r.readBits(2);r.skipBits(14);let n=null;if(2===s||3===s)n=0,r.skipBits(4),n+=r.readBits(3)*(1<<30),r.skipBits(1),n+=32768*r.readBits(15),r.skipBits(1),n+=r.readBits(15),n=e.normalizeTimestamp(n);else if(i)throw new Error(ka);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:n,randomAccessIndicator:t.randomAccessIndicator}},Sa=(e,t,r)=>{i(null!==t.endPos);const a=Ta(e,t,r);if(!a)return null;const s=new ve(t.payload);s.skipBits(32);const n=s.readBits(16);s.skipBits(16);const o=s.readBits(8),c=s.pos+8*o;s.pos=c;const l=c/8;i(Number.isInteger(l));const u=t.payload.subarray(l,n>0?6+n:t.payload.byteLength);return{...a,data:u}};class va{constructor(e){this.elementaryStream=e,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const e=this.elementaryStream.demuxer,t=this.elementaryStream.info.type;let r=0;for(const a of e.trackBackingEntries)if(a.getType()===t&&r++,i(a instanceof va),a.elementaryStream===this.elementaryStream)break;return r}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return O}getDisposition(){return{...Se,primary:!1}}getTimeResolution(){return ma}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}createEncodedPacket(e,t,i){let r;return r=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new pi(i.metadataOnly?mi:e.data,r,e.pts/ma,Math.max(t/ma,0),e.sequenceNumber,e.data.byteLength)}async getFirstPacket(e){const t=this.elementaryStream.firstSection;i(t);const r=Sa(this.elementaryStream.demuxer,t,!0);i(r);const a=new Ca(this.elementaryStream,r),s=new Ba(this,a),n=await s.readNext();if(!n)return null;const o=this.createEncodedPacket(n.packet,n.duration,e);return this.packetBuffers.set(o,s),this.packetSectionStarts.set(o,n.packet.sectionStartPos),o}async getNextPacket(e,t){let r=this.packetBuffers.get(e);if(r){const i=await r.readNext();if(!i)return null;this.packetBuffers.delete(e);const a=this.createEncodedPacket(i.packet,i.duration,t);return this.packetBuffers.set(a,r),this.packetSectionStarts.set(a,i.packet.sectionStartPos),a}const a=this.packetSectionStarts.get(e);if(void 0===a)throw new Error("Packet was not created from this track.");const s=this.elementaryStream.demuxer,n=await s.readSection(a,!0);i(n);const o=Sa(s,n,!0);i(o);const c=new Ca(this.elementaryStream,o);r=new Ba(this,c);const l=e.sequenceNumber;for(;;){const e=await r.readNext();if(!e)return null;if(e.packet.sequenceNumber>l){const i=this.createEncodedPacket(e.packet,e.duration,t);return this.packetBuffers.set(i,r),this.packetSectionStarts.set(i,e.packet.sectionStartPos),i}}}async getNextKeyPacket(e,t){let i=e;for(;;){if(i=await this.getNextPacket(i,t),!i)return null;if("key"===i.type)return i}}getPacket(e,t){return this.doPacketLookup(e,!1,t)}getKeyPacket(e,t){return this.doPacketLookup(e,!0,t)}async doPacketLookup(e,t,r){const s=L(e*ma),n=this.elementaryStream.demuxer,{reader:o,seekChunkSize:c}=n,l=this.elementaryStream.pid,u=async(e,t,i)=>{let r=e;for(;re.pts),g=-1!==p?m[p]:null;if(g&&s-g.pts<45e3)f=g.sectionStartPos;else{let e=0;if(null!==o.fileSize){const t=Math.ceil(o.fileSize/c);if(t>1){let i=0,r=t-1;for(e=i;i<=r;){const t=Math.floor((i+r)/2),a=q(t*c,n.packetStride)+h.sectionStartPos,o=a+c,l=await u(a,o,!1);l?l.pesPacketHeader.pts<=s?(e=t,i=t+1):r=t-1:r=t-1}}}f=q(e*c,n.packetStride)+h.sectionStartPos}const k=await u(f,o.fileSize??1/0,!1);let y=k?.pesPacketHeader??null;y||(y=h);const b=this.getReorderSize(),w=async(e,t)=>{const o=await n.readSection(e,!0);i(o);const c=Sa(n,o,!0);i(c);const l=new Ca(this.elementaryStream,c),u=new Ba(this,l);for(;;){if((a(u.presentationOrderPackets)?.pts??-1/0)>=s)break;if(!(await u.readNextPacket()))break}const d=R(u.presentationOrderPackets,t);if(-1===d)return null;const h=u.presentationOrderPackets[d],f=0===d?0:h.pts-u.presentationOrderPackets[d-1].pts;for(;u.decodeOrderPackets[0]!==h;)u.decodeOrderPackets.shift();u.lastDuration=f;const m=await u.readNext();i(m);const p=this.createEncodedPacket(m.packet,m.duration,r);return this.packetBuffers.set(p,u),this.packetSectionStarts.set(p,m.packet.sectionStartPos),p};if(!t||this.allPacketsAreKeyPackets()){e:for(;;){let e=y.sectionStartPos+n.packetStride;for(;;){const t=await n.readPacketHeader(e);if(!t)break e;if(t.pid===l&&1===t.payloadUnitStartIndicator){const t=await n.readSection(e,!1);if(t){const e=Ta(n,t,!1);if(e&&null!==e.pts){if(e.pts>s)break e;y=e,xa(this.elementaryStream,y);break}}}e+=n.packetStride}}e:for(let e=0;e=n.packetOffset;){const t=await n.readPacketHeader(e);if(!t)break e;if(t.pid===l&&1===t.payloadUnitStartIndicator){const t=await n.readSection(e,!1);if(t){const e=Ta(n,t,!1);if(e&&null!==e.pts){y=e;break}}}e-=n.packetStride}}return w(y.sectionStartPos,e=>e.pts<=s)}{let e=f,t=null;const r=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let a=null;const f=e<=h.sectionStartPos;let m,p=null;if(f)m=h,p=d;else{const t=await u(e,o.fileSize??1/0,r);m=t?.pesPacketHeader??null,p=t?.section??null}let g=!1,k=0;e:for(;m&&!(null!==t&&m.sectionStartPos>=t);){if(m.pts<=s){let e;if(this.elementaryStream.canBeTrustedWithKeyPackets)e=1===m.randomAccessIndicator;else{i(p);const t=Sa(n,p,!0);i(t);const r=new Ca(this.elementaryStream,t);await r.markNextPacket(),e=1===r.suppliedPacket?.randomAccessIndicator}e&&(a=m)}if(m.pts>s&&(g=!0),g&&(k++,k>b))break;let e=m.sectionStartPos+n.packetStride;for(;;){const t=await n.readPacketHeader(e);if(!t)break e;if(t.pid===l&&1===t.payloadUnitStartIndicator){const t=await n.readSection(e,r);if(t){const e=Ta(n,t,!1);if(e&&null!==e.pts){m=e,p=t,xa(this.elementaryStream,m);break}}}e+=n.packetStride}}if(a){let e=a;if(0===k)e:for(let i=0;i=n.packetOffset;){const i=await n.readPacketHeader(t);if(!i)break e;if(i.pid===l&&1===i.payloadUnitStartIndicator){const i=await n.readSection(t,r);if(i){const t=Ta(n,i,!1);if(t&&null!==t.pts){e=t;break}}}t-=n.packetStride}}const t=await w(e.sectionStartPos,e=>e.pts<=s&&1===e.randomAccessIndicator);return i(t),t}if(f)return null;t=e,e=Math.max(q(e-h.sectionStartPos-c,n.packetStride)+h.sectionStartPos,h.sectionStartPos)}}}}class Pa extends va{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}async getColorSpace(){return this.elementaryStream.info.colorSpace}async canBeTransparent(){return!1}async getDecoderConfig(){return i(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class Ia extends va{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}async getDecoderConfig(){return i(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const xa=(e,t)=>{const i=e.referencePesPackets,r=x(i,t.sectionStartPos,e=>e.sectionStartPos);if(r>=0){const a=i[r];if(t.pts<=a.pts)return!1;const s=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-a.sectionStartPos=e?e:this.bufferData(e-t).then(()=>Math.min(this.endPos-this.currentPos,e))}getCurrentPesPacket(){const e=this.pesPackets[this.currentPesPacketIndex];return i(e),e}async bufferData(e){const t=this.endPos+e;for(;this.endPos=u)break;d=e;const i=c+d;if(d+3>=u){this.seekTo(i);break}const h=l[d+1],f=l[d+2],m=l[d+3];let p=0;if(0===h&&0===f&&1===m?p=4:0===h&&1===f&&(p=3),0===p){d++;continue}const g=i;a??(a=g);const k=d+p,y=k+r,b=6;if(y+("avc"===t?b:1)>u){this.seekTo(i);break}const w=l[k];let T,S,v;if("avc"===t)T=Le(w),S=T===Re.NON_IDR_SLICE||T===Re.SLICE_DPA||T===Re.IDR,v=T===Re.SEI||T===Re.SPS||T===Re.PPS||T===Re.AUD;else{T=Ye(w);if(((1&w)<<5|l[k+1]>>3)>0){d+=p;continue}S=T<=Ae.RASL_R||T>=Ae.BLA_W_LP&&T<=21,v=T>=Ae.VPS_NUT&&T<=37||T===Ae.PREFIX_SEI_NUT||T>=41&&T<=44||T>=48&&T<=55}let P=!1;if(S){let e;if("avc"===t){const t=l.subarray(y,y+b),i=s(new ve(t));e=!n||i<=o,o=i}else e=l[y]>>7===1;e&&(n?P=!0:n=!0)}else v&&n&&(P=!0);if(P){const e=g-a;return this.seekTo(a),this.supplyPacket(e,0)}d+=p}if(ea){const e=this.endPos-a;return this.seekTo(a),this.supplyPacket(e,0)}}else{const t=e.info.codec,r=128;for(;;){let a=this.ensureBuffered(r);ae(a)&&(a=await a);const s=this.currentPos;for(;this.currentPos-s>6,o=63&s[4];if(3===n||o>37){this.seekTo(t+1);continue}const c=vt[3*o+n];i(void 0!==c),this.seekTo(t),a=this.ensureBuffered(c),ae(a)&&(a=await a);const l=Math.round(13824e4/e.info.sampleRate);return this.supplyPacket(a,l)}if("eac3"===t){if(11!==r)continue;this.skip(-1);const t=this.currentPos;let i=this.ensureBuffered(5);if(ae(i)&&(i=await i),i<5)return;const a=this.readBytes(5);if(11!==a[0]||119!==a[1]){this.seekTo(t+1);continue}const s=2*(((7&a[2])<<8|a[3])+1),n=3===a[4]>>6?3:a[4]>>4&3,o=Pt[n];this.seekTo(t),i=this.ensureBuffered(s),ae(i)&&(i=await i);const c=256*o,l=Math.round(c*ma/e.info.sampleRate);return this.supplyPacket(i,l)}if("dts"===t){if(127!==r&&100!==r)continue;this.skip(-1);const t=this.currentPos;let i=this.ensureBuffered(18);if(ae(i)&&(i=await i),i<18)return;const a=this.readBytes(18),s=Lt(a);let n=s?null:zt(a);if(!s&&!n){this.seekTo(t+1);continue}if(n&&!n.asset){this.seekTo(t);const e=Math.min(n.frameSize,4096);let i=this.ensureBuffered(e);ae(i)&&(i=await i),n=zt(this.readBytes(i))??n}let o=s?s.frameSize:n.frameSize;if(s){let e=4*Math.ceil(s.frameSize/4);for(;;){this.seekTo(t);const i=e+10;let r=this.ensureBuffered(i);if(ae(r)&&(r=await r),r=0)}async readNext(){if(0===this.decodeOrderPackets.length){if(!(await this.readNextPacket()))return null}await this.ensureCurrentPacketHasNext();const e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e);let r;if(i(-1!==t),t===this.presentationOrderPackets.length-1)r=this.lastDuration;else{r=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=r}for(this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const e=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(e))break;this.presentationOrderPackets.shift()}return{packet:e,duration:r}}async readNextPacket(){if(this.reachedEnd)return!1;let e;return this.context.suppliedPacket||await this.context.markNextPacket(),e=this.context.suppliedPacket,this.context.suppliedPacket=null,e?(this.decodeOrderPackets.push(e),this.processPacketThroughReorderBuffer(e),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)}async ensureCurrentPacketHasNext(){const e=this.decodeOrderPackets[0];for(i(e);;){const t=this.presentationOrderPackets.indexOf(e);if(-1!==t&&t<=this.presentationOrderPackets.length-2)break;if(!(await this.readNextPacket()))break}}processPacketThroughReorderBuffer(e){if(this.reorderBuffer.push(e),this.reorderBuffer.length>this.reorderSize){let e=0;for(let i=1;ie.pts-t.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const Ea="application/vnd.apple.mpegurl",_a="#EXT-X-STREAM-INF:",Ra="#EXT-X-I-FRAME-STREAM-INF:",Fa="#EXT-X-MEDIA:",Aa="#EXTINF:",Da="#EXT-X-MAP:",Ma="#EXT-X-KEY:",Na="#EXT-X-MEDIA-SEQUENCE:",Oa="#EXT-X-BYTERANGE:",La="#EXT-X-PROGRAM-DATE-TIME:",za="#EXT-X-TARGETDURATION:",Ua="#EXT-X-PLAYLIST-TYPE:",qa=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class Wa{constructor(e){this._attributes={};let t="",i="",r=!1,a=!1;for(let s=0;s{const e=[];if(this.trackDeclarations){for(const t of this.trackDeclarations)if("video"===t.type){const i=de(e,e=>"video"===e.getType())+1;e.push(new ja(this,t,i))}else if("audio"===t.type){const i=de(e,e=>"audio"===e.getType())+1;e.push(new Ka(this,t,i))}}else{if(this.firstSegment=await this.getFirstSegment({}),!this.firstSegment)return[];const t=this.getInputForSegment(this.firstSegment),i=await t.getTracks();for(const r of i)if("video"===r.type){const t=de(e,e=>"video"===e.getType())+1;e.push(new ja(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=de(e,e=>"audio"===e.getType())+1;e.push(new Ka(this,{id:e.length+1,type:"audio"},t))}}return e})())}async getFirstTimestampForInput(e){const t=this.firstTimestampCache.get(e);if(void 0!==t)return t;const i=await e.getFirstTimestamp();return this.firstTimestampCache.set(e,i),i}async getMediaOffset(e,t){const i=e.firstSegment??e;let r;if(this.firstSegmentFirstTimestamps.has(i))r=this.firstSegmentFirstTimestamps.get(i);else{const e=this.getInputForSegment(i);r=await this.getFirstTimestampForInput(e),this.firstSegmentFirstTimestamps.set(i,r)}if(i===e)return i.timestamp-r;const a=await this.getFirstTimestampForInput(t),s=e.timestamp-i.timestamp,n=a-r-s;return Math.abs(n)<=Math.min(.25,s)?i.timestamp-r:e.timestamp-a}dispose(){for(const e of this.inputCache)e.input.dispose();this.inputCache.length=0}}class Va{constructor(e,t,i){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.firstSegment=null,this.segmentedInput=e,this.decl=t,this.number=i}hydrate(){return this.hydrationPromise??(this.hydrationPromise=(async()=>{var e;if((e=this.segmentedInput).firstSegment??(e.firstSegment=await this.segmentedInput.getFirstSegment({})),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let t=this.segmentedInput.firstSegment,i=null;for(;t;){const e=this.segmentedInput.getInputForSegment(t);if(i=(await e.getTracks()).find(e=>e.type===this.decl.type&&e.number===this.number)??null,i)break;t=await this.segmentedInput.getNextSegment(t,{})}if(!i)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=i,this.firstSegment=t})())}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(e){return this.firstInputTrack?e():this.hydrate().then(e)}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}getHasOnlyKeyPackets(){return this.delegate(()=>this.firstInputTrack._backing.getHasOnlyKeyPackets?.()??null)}getPairingMask(){return 1n}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}async isRelativeToUnixEpoch(){return await this.hydrate(),i(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp}getUnixTimeForTimestamp(e){return this.segmentedInput.getUnixTimeForTimestamp(e)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(e){return this.segmentedInput.getDurationFromMetadata(e)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}async createAdjustedPacket(e,t,r){i(e.sequenceNumber>=0),i(this.segmentedInput.firstSegment);const a=await this.segmentedInput.getMediaOffset(t,r.input),s=t.timestamp-this.segmentedInput.firstSegment.timestamp,n=e.clone({timestamp:U(e.timestamp+a,await r.getTimeResolution()),sequenceNumber:Math.floor(1e8*s)+e.sequenceNumber});return this.packetInfos.set(n,{segment:t,track:r,sourcePacket:e}),n}async getFirstPacket(e){await this.hydrate(),i(this.firstInputTrack),i(this.firstSegment);let t=this.firstInputTrack,r=this.firstSegment;for(;;){if(t){const i=await t._backing.getFirstPacket(e);if(i)return this.createAdjustedPacket(i,r,t)}if(r=await this.segmentedInput.getNextSegment(r,{skipLiveWait:e.skipLiveWait}),!r)break;const i=this.segmentedInput.getInputForSegment(r);t=(await i.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number)??null}return null}getNextPacket(e,t){return this._getNextInternal(e,t,!1)}getNextKeyPacket(e,t){return this._getNextInternal(e,t,!0)}async _getNextInternal(e,t,i){const r=this.packetInfos.get(e);if(!r)throw new Error("Packet was not created from this track.");const a=i?await r.track._backing.getNextKeyPacket(r.sourcePacket,t):await r.track._backing.getNextPacket(r.sourcePacket,t);if(a)return this.createAdjustedPacket(a,r.segment,r.track);let s=r.segment;for(;;){const e=await this.segmentedInput.getNextSegment(s,{skipLiveWait:t.skipLiveWait});if(!e)return null;const i=this.segmentedInput.getInputForSegment(e),a=(await i.getTracks()).find(e=>e.type===r.track.type&&e.number===r.track.number);if(!a){s=e;continue}const n=await a._backing.getFirstPacket(t);return n?this.createAdjustedPacket(n,e,a):null}}getPacket(e,t){return this._getPacketInternal(e,t,!1)}getKeyPacket(e,t){return this._getPacketInternal(e,t,!0)}async _getPacketInternal(e,t,i){let r=await this.segmentedInput.getSegmentAt(e,{skipLiveWait:t.skipLiveWait});if(!r)return null;for(await this.hydrate();r;){const a=this.segmentedInput.getInputForSegment(r),s=(await a.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number);if(!s){r=await this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait});continue}const n=e-await this.segmentedInput.getMediaOffset(r,a),o=i?await s._backing.getKeyPacket(n,t):await s._backing.getPacket(n,t);if(o)return this.createAdjustedPacket(o,r,s);r=await this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait})}return null}}class ja extends Va{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}async getColorSpace(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())}async canBeTransparent(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}class Ka extends Va{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}ce();const Xa=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class $a extends ge{constructor(){super(),this._disposed=!1,this._refCount=0,this._usedForHls=!1,this._refFinalizationRegistry=null,this._sizePromise=null,this.onread=null,"undefined"!==typeof FinalizationRegistry&&(this._refFinalizationRegistry=new FinalizationRegistry(e=>{e._decrementRefCount()}))}async getSizeOrNull(){if(this._disposed)throw new lo;return this._sizePromise??(this._sizePromise=(async()=>{let e=this._getFileSize();return void 0!==e||(await this._read(0,1,0,Xa),e=this._getFileSize(),i(void 0!==e)),e})())}async getSize(){if(this._disposed)throw new lo;const e=await this.getSizeOrNull();if(null===e)throw new Error("Cannot determine the size of an unsized source.");return e}slice(e,t){if(!Number.isInteger(e)||e<0)throw new TypeError("offset must be a non-negative integer.");if(void 0!==t&&(!Number.isInteger(t)||t<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new ls(this,e,t)}_dispatchRead(e,t){this.onread?.(e,t),this._emit("read",{start:e,end:t})}ref(){return new Ga(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class Ga{constructor(e){if(this._freed=!1,e._disposed)throw new Error("Cannot ref a disposed source.");e._incrementRefCount(),e._refFinalizationRegistry?.register(this,e,this),this._source=e}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const e=this.source;i(e._refCount>0),e._decrementRefCount(),e._refFinalizationRegistry?.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class Qa extends $a{constructor(e,t){if("string"!==typeof e)throw new TypeError("rootPath must be a string.");if("function"!==typeof t)throw new TypeError("requestHandler must be a function.");super(),this.rootPath=e,this.requestHandler=t}_resolveRequest(e){const t=this.requestHandler(e),i=e=>{var t;if(!(e instanceof $a||e instanceof Ga))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof $a?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return ae(t)?t.then(i):i(t)}}const Ya=(e,t)=>e.path===t.path;class Ja extends Qa{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(e,t,r,a){if(!this._root){if(!this._rootRequest){const e=this._resolveRequest({path:this.rootPath,isRoot:!0}),t=e=>{const t=e instanceof $a?e.ref():e;return this._root=t,this._rootRequest=null,t};ae(e)?this._rootRequest=e.then(t):(t(e),i(this._root))}if(this._rootRequest)return this._rootRequest.then(i=>i.source._read(e,t,r,a))}return this._root.source._read(e,t,r,a)}_getFileSize(){if(this._root)return this._root.source._getFileSize()}_dispose(){this._root?this._root.free():this._rootRequest&&this._rootRequest.then(e=>e.free())}}const Za="undefined"!==typeof FinalizationRegistry?new FinalizationRegistry(e=>{e.cancel().catch(()=>{})}):null;class es extends $a{constructor(e,t={}){if(!(e instanceof Blob))throw new TypeError("blob must be a Blob.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.maxCacheSize&&(!le(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.useStreamReader&&"boolean"!==typeof t.useStreamReader)throw new TypeError("options.useStreamReader, when provided, must be a boolean.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(),this._readers=new WeakMap,this._blob=e,this._options=t,this._orchestrator=new cs({maxCacheSize:t.maxCacheSize??8388608,maxWorkerCount:4,runWorker:this._runWorker.bind(this),onIdleWorkerRemoved:e=>{const t=this._readers.get(e);t&&(this._readers.delete(e),Za?.unregister(e),t.cancel().catch(()=>{}))},prefetchProfile:os.fileSystem,handleUnhandledError:t.handleUnhandledError}),this._orchestrator.fileSize=e.size}_getFileSize(){return this._orchestrator.fileSize}_read(e,t,i,r){return this._orchestrator.read(e,t,i,r)}async _runWorker(e){i(e.strictTarget);let t=this._readers.get(e);if(void 0===t){if("stream"in this._blob&&!Y()&&!1!==this._options.useStreamReader){t=this._blob.slice(e.currentPos).stream().getReader(),Za?.register(e,t,e)}else t=null;this._readers.set(e,t)}for(;e.currentPos{if(t instanceof Error&&(t.message.includes("Failed to fetch")||t.message.includes("Load failed")||t.message.includes("NetworkError when attempting to fetch resource"))&&"undefined"!==typeof window){let e=null;try{"undefined"!==typeof window&&"undefined"!==typeof window.location&&(e=new URL(i instanceof Request?i.url:i,window.location.href).origin)}catch{}if(("undefined"===typeof navigator||"boolean"!==typeof navigator.onLine||navigator.onLine)&&null!==e&&e!==window.location.origin)return be._warn("Request will not be retried because a CORS error was suspected due to different origins. You can modify this behavior by providing your own function for the 'getRetryDelay' option."),null}return Math.min(2**(e-2),16)},is=new Set;class rs extends Qa{constructor(e,t={}){if("string"!==typeof e&&!(e instanceof URL)&&!("undefined"!==typeof Request&&e instanceof Request))throw new TypeError("url must be a string, URL or Request.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.requestInit&&(!t.requestInit||"object"!==typeof t.requestInit))throw new TypeError("options.requestInit, when provided, must be an object.");if(void 0!==t.getRetryDelay&&"function"!==typeof t.getRetryDelay)throw new TypeError("options.getRetryDelay, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!le(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.parallelism&&(!Number.isInteger(t.parallelism)||t.parallelism<1))throw new TypeError("options.parallelism, when provided, must be a positive number.");if(void 0!==t.fetchFn&&"function"!==typeof t.fetchFn)throw new TypeError("options.fetchFn, when provided, must be a function.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(e instanceof Request?e.url:e instanceof URL?e.href:e,e=>new rs(e.path,this._options)),this._offset=0,this._length=null,this._fileSizeDetermined=!1,this._sequentialBacking=null,this._url=e,this._options=t,this._getRetryDelay=t.getRetryDelay??ts,this._requestInit={...t.requestInit};let i=null;if(t.requestInit?.headers){const e={...X(t.requestInit.headers)},r=Object.keys(e).find(e=>"range"===e.toLowerCase());void 0!==r&&(i=e[r],delete e[r],this._requestInit.headers=e)}if(e instanceof Request){const t=e.headers.get("Range");if(null!==t){i??(i=t);const r=new Request(e);r.headers.delete("Range"),this._url=r}}if(null!==i){const e=ss(i);e&&(this._offset=e.offset,this._length=e.length)}this._orchestrator=new cs({maxCacheSize:t.maxCacheSize??67108864,maxWorkerCount:t.parallelism??2,runWorker:this._runWorker.bind(this),prefetchProfile:os.network,handleUnhandledError:t.handleUnhandledError})}_getFileSize(){if(!this._fileSizeDetermined)return null!==this._length?this._length:void 0;const e=this._sequentialBacking?this._sequentialBacking._endIndex:this._orchestrator.fileSize;return null===e?null!==this._length?this._length:null:N(e-this._offset,0,this._length??1/0)}_read(e,t,i,r){if(null!==this._length&&t>this._length)return null;const a=this._offset,s=this._sequentialBacking?this._sequentialBacking._read(a+e,a+t):this._orchestrator.read(a+e,a+t,Math.max(a+i,a),a+Math.min(r,this._length??1/0)),n=e=>e?(e.offset-=this._offset,e):null;return ae(s)?s.then(n):n(s)}async _runWorker(e){for(;;){const i=new AbortController,r=await $(this._options.fetchFn??fetch,this._url,K(this._requestInit,{headers:{Range:`bytes=${e.currentPos}-`},signal:i.signal}),this._getRetryDelay,()=>this._disposed);if(!r.ok)throw new Error(`Error fetching ${String(this._url)}: ${r.status} ${r.statusText}`);r.redirected&&(this.rootPath=r.url);e:if(null===this._orchestrator.fileSize&&(206===r.status||"basic"===r.type&&!r.headers.has("Content-Encoding"))){const t=r.headers.get("Content-Range");if(t){const e=/\/(\d+)/.exec(t);if(e){this._orchestrator.supplyFileSize(Number(e[1]));break e}}const i=r.headers.get("Content-Length");if(i){const t=206===r.status?e.currentPos:0;this._orchestrator.supplyFileSize(t+Number(i))}}if(this._fileSizeDetermined=!0,!r.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");if(206!==r.status){if(this._sequentialBacking)return void r.body.cancel();if(!this._usedForHls){const e=new URL(this._url instanceof Request?this._url.url:this._url,"undefined"!==typeof window?window.location.href:void 0);"null"===e.origin||e.pathname.endsWith(".m3u8")||e.pathname.endsWith(".m3u")||is.has(e.origin)||(be._warn(`HTTP server (origin ${e.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. Alternatively, set maxCacheSize to Infinity in the UrlSource options to keep the entire resource in memory.`),is.add(e.origin))}return void this._transitionToSequentialMode(r.body)}const a=r.body.getReader();for(;;){if(e.currentPos>=e.targetPos||e.aborted)return i.abort(),void this._orchestrator.signalWorkerStoppedRunning(e);let r;try{r=await a.read()}catch(t){if(this._disposed)throw t;const e=this._getRetryDelay(1,t,this._url);if(null!==e){be._error("Error while reading response stream. Attempting to resume.",t),await pe(1e3*e);break}throw t}if(e.aborted)continue;const{done:s,value:n}=r;if(s){if(e.currentPos>=e.targetPos)return void this._orchestrator.onWorkerFinished(e);if(e.strictTarget)break;return void this._orchestrator.onWorkerFinished(e)}this._dispatchRead(e.currentPos,e.currentPos+n.length),this._orchestrator.supplyWorkerData(e,n)}}}_transitionToSequentialMode(e){let t=e.getReader(),r=0,a=0;const s=new ReadableStream({pull:async e=>{for(;;){let s;try{s=await t.read()}catch(i){if(this._disposed)throw i;const e=this._getRetryDelay(1,i,this._url);if(null===e)throw i;be._error("Error while reading response stream. Attempting to resume.",i),await pe(1e3*e);const s=await $(this._options.fetchFn??fetch,this._url,K(this._requestInit,{headers:{Range:`bytes=${r}-`}}),this._getRetryDelay,()=>this._disposed);if(!s.ok)throw new Error(`Error fetching ${String(this._url)}: ${s.status} ${s.statusText}`);if(!s.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");t=s.body.getReader(),a=206===s.status?0:r;continue}if(s.done)return void e.close();let n=s.value;if(a>0){const e=Math.min(a,n.length);a-=e,n=n.subarray(e)}if(0!==n.length)return r+=n.length,void e.enqueue(n)}},cancel:()=>t.cancel()}),n=new ns(s,{maxCacheSize:this._orchestrator.options.maxCacheSize,handleUnhandledError:this._options.handleUnhandledError});n._endIndex=this._orchestrator.fileSize,n._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. Because the HTTP server did not honor the range request, data can only be read sequentially, with old data being evicted from the cache. To fix this issue, either ensure your server responds to range requests with 206 Partial Content, or set maxCacheSize to Infinity in the UrlSource options. Note that the latter will store the entire file in the cache if needed, no matter how large.",n.on("read",({start:e,end:t})=>this._dispatchRead(e,t)),this._sequentialBacking=n;const o=new Set;for(const i of this._orchestrator.workers){for(const e of i.pendingSlices)o.add(e);i.aborted=!0,i.pendingSlices.length=0}for(const i of this._orchestrator.queuedReads)for(const e of i.pendingSlices)o.add(e);this._orchestrator.workers.length=0,this._orchestrator.queuedReads.length=0;for(const c of o){const e=n._read(c.start,c.start+c.bytes.length);ae(e)?e.then(e=>{e?(i(e.offset===c.start),c.resolve(e.bytes)):c.resolve(null)},e=>c.reject(e)):(i(null===e),c.resolve(null))}}_dispose(){this._orchestrator.dispose(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}}const as=/^bytes=(\d+)-(\d*)$/,ss=e=>{const t=as.exec(e.trim());if(!t)return null;const i=Number(t[1]),r=""===t[2]?null:Number(t[2]);return null!==r&&rthis._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);const i=x(this._cache,e,e=>e.start),r=-1!==i?this._cache[i]:null;if(r&&r.start<=e&&t<=r.end)return{bytes:r.bytes,view:r.view,offset:r.start};let a=e;const s=new Uint8Array(t-e);if(-1!==i)for(let l=i;l=t)break;const r=Math.max(e,i.start);r>a&&this._throwDueToCacheMiss();const n=Math.min(t,i.end);ra&&this._throwDueToCacheMiss();const{promise:n,resolve:o,reject:c}=B();return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:o,reject:c}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(e=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(t=>t.reject(e)),this._pendingSlices.length=0;else{if(!this._handleUnhandledError)throw e;this._handleUnhandledError(e)}})),n}_throwDueToCacheMiss(){throw new Error(this._cacheMissErrorMessage)}async _pull(){for(this._reader??(this._reader=this._stream.getReader());this._currentIndex0;){const e=this._cache[0];if(this._maxRequestedIndex-e.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=t.byteLength}this._pulling=!1}_dispose(){for(const e of this._pendingSlices)e.reject(new lo);this._pendingSlices.length=0,this._cache.length=0,this._reader?.cancel()}}const os={fileSystem:(e,t)=>{const i=65536;return{start:e=Math.floor((e-i)/i)*i,end:t=Math.ceil((t+i)/i)*i}},network:(e,t,i)=>{const r=65536;e=Math.max(0,Math.floor((e-r)/r)*r);for(const a of i){const i=8388608,r=Math.max((a.startPos+a.targetPos)/2,a.targetPos-i);if(ne(e,t,r,a.targetPos)){const e=a.targetPos-a.startPos,r=Math.ceil((e+1)/i)*i,s=2**Math.ceil(Math.log2(e+1)),n=Math.min(s,r);t=Math.max(t,a.startPos+n)}}return{start:e,end:t=Math.max(t,e+524288)}}};class cs{constructor(e){this.options=e,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(e,t,r,a){i(!this.disposed);const s=this.options.prefetchProfile(e,t,this.workers),n=Math.max(s.start,r),o=Math.min(s.end,this.fileSize??1/0,a);i(n<=e&&t<=o);let c=null;const u=x(this.cache,e,e=>e.start),d=-1!==u?this.cache[u]:null;d&&d.start<=e&&t<=d.end&&(d.age=this.nextAge++,c={bytes:d.bytes,view:d.view,offset:d.start});const h=x(this.cache,n,e=>e.start),f=c?null:new Uint8Array(t-e);let m=0,p=n;const g=[];if(-1!==h){for(let r=h;r=o)break;if(a.end<=n)continue;const s=Math.max(n,a.start),c=Math.min(o,a.end);if(i(s<=c),p=f.length&&(c={bytes:f,view:l(f),offset:e}),0===g.length)return i(c),c;const{promise:k,resolve:y,reject:b}=B(),w=[];for(const i of g){const r=Math.max(e,i.start),a=Math.min(t,i.end);r===i.start&&a===i.end?w.push(i):re.hole.start),r=-1!==t?this.queuedReads[t]:null;for(r&&i.start<=r.hole.end?(r.hole.end=Math.max(r.hole.end,i.end),r.strictTarget&&(r.strictTarget=e),T&&r.pendingSlices.push(T)):(t++,r={hole:{start:i.start,end:i.end},strictTarget:e,pendingSlices:T?[T]:[],age:this.nextAge++},this.queuedReads.splice(t,0,r));t+1r.hole.end)break;r.hole.end=Math.max(r.hole.end,e.hole.end),r.pendingSlices.push(...e.pendingSlices),r.strictTarget&&(r.strictTarget=e.strictTarget),r.age=Math.min(r.age,e.age),this.queuedReads.splice(t+1,1)}}}return c?k.catch(e=>{if(!this.disposed){if(!this.options.handleUnhandledError)throw e;this.options.handleUnhandledError(e)}}):(i(f),c=k.then(t=>t&&{bytes:t,view:l(t),offset:e})),c}checkHoleAgainstWorker(e,t,i){if(ne(t.start-2**17,t.start,e.currentPos,e.targetPos)){e.targetPos=Math.max(e.targetPos,t.end);for(let t=0;t=this.options.maxWorkerCount){let e=null,t=null;for(let i=0;i{if(e.running=!1,e.pendingSlices.length>0)e.pendingSlices.forEach(e=>e.reject(t)),e.pendingSlices.length=0;else if(!e.aborted&&!this.disposed){if(!this.options.handleUnhandledError)throw t;this.options.handleUnhandledError(t)}}).finally(()=>{if(!e.running&&this.queuedReads.length>0){let e=0;for(let r=1;re.targetPos&&(e.targetPos=e.currentPos,this.checkQueuedReadsAgainstWorker(e));for(let i=0;it.start&&(t.start=a),t.end<=t.start&&(s.holes.splice(e,1),e--)}0===s.holes.length&&(s.resolve(s.bytes),e.pendingSlices.splice(i,1),i--)}for(let i=0;ie){r.resolve(null),t.pendingSlices.splice(i,1),i--;break}}}for(let t=0;t=e){for(const e of i.pendingSlices)e.resolve(null);this.queuedReads.splice(t,1),t--}else if(i.hole.end>e){i.hole.end=e,i.strictTarget=!0;for(let t=0;t=e&&(r.resolve(null),i.pendingSlices.splice(t,1),t--)}}}}signalWorkerStoppedRunning(e){e.running=!1,e.aborted||(e.pendingSlices.length=0)}onWorkerFinished(e){const t=this.workers.indexOf(e);i(-1!==t),e.running=!1,this.workers.splice(t,1),this.options.onIdleWorkerRemoved?.(e),null===this.fileSize&&this.supplyFileSize(e.currentPos);for(const i of e.pendingSlices)i.resolve(null)}insertIntoCache(e){if(0===this.options.maxCacheSize)return;let t=x(this.cache,e.start,e=>e.start)+1;if(t>0){const i=this.cache[t-1];if(i.end>=e.end)return;if(i.end>e.start){const r=new Uint8Array(e.end-i.start);r.set(i.bytes,0),r.set(e.bytes,e.start-i.start),this.currentCacheSize+=e.end-i.end,i.bytes=r,i.view=l(r),i.end=e.end,t--,e=i}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length;for(let i=t+1;i=t.end){this.cache.splice(i,1),this.currentCacheSize-=t.bytes.length,i--;continue}const r=new Uint8Array(t.end-e.start);r.set(e.bytes,0),r.set(t.bytes,t.start-e.start),this.currentCacheSize-=e.end-t.start,e.bytes=r,e.view=l(r),e.end=t.end,this.cache.splice(i,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let e=0,t=this.cache[0];for(let i=1;ithis._length)return null;const a=this._baseSource._read(this._offset+e,this._offset+t,this._offset+i,this._offset+r),s=e=>e?(e.offset-=this._offset,e):null;return ae(a)?a.then(s):s(a)}_dispose(){this._ref?.free()}ref(){return this._ref??(this._ref=this._baseSource.ref()),super.ref()}}var us=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,a;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(a=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");a&&(r=function(){try{a.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t},ds=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,a=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===a)return a=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return a|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else a|=1}catch(n){i(n)}if(1===a)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});const hs=/^0[xX][0-9a-fA-F]+$/,fs=/^data:.*;base64,/i;class ms extends Ha{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){return this.currentUpdateSegmentsPromise??(this.currentUpdateSegmentsPromise=(async()=>{try{const e=this.getRemainingWaitTimeMs();e>0&&await pe(e),this.lastSegmentUpdateTime=performance.now(),await this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}})())}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}async updateSegments(){let e=this.nextLines;if(this.nextLines=null,!e){const t={stack:[],error:void 0,hasError:!1};try{const r=us(t,await this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),a=new uo(r.source),s=await a.requestEntireFile();i(s),e=Ro(s,s.length,{ignore:qa}),r.source instanceof Qa&&(this.rootPath=r.source.rootPath)}catch(T){t.error=T,t.hasError=!0}finally{ds(t)}}const t=!1!==this.input._formatOptions.hls?.offsetTimestampsByDateTime;let r=!1,s=0,n=null,o=null,c=null,u=0,d=null,h=null,f=null,m=null,p=null,g=null,k=!1,y=a(this.segments)??null;const b=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${e}'.`);let r=null;if(-1!==t&&(r=Number(e.slice(t+1)),!Number.isInteger(r)||r<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${e}'.`);return{length:i,offset:r}},w=e=>{u=e,y&&(i(null!==y.sequenceNumber),y.sequenceNumber0&&null!==g&&(s=u*g),k=!0);const e=T.slice(8),t=e.indexOf(","),i=-1===t?e:e.slice(0,t),r=Number(i);if(!Number.isFinite(r)||r<0)throw new Error(`Invalid #EXTINF tag duration '${i}'.`);o=r}else if(T.startsWith(Da)){const e=new Wa(T.slice(11)),t=e.get("uri");if(!t)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const i=e.get("byterange");let r=null;if(null!==i&&(r=b(i)),r&&null===r.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!y){const e={path:ue(this.rootPath,t),offset:r?.offset??0,length:r?.length??null};if("AES-128"===c?.method&&!c.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");h={timestamp:s,unixEpochTimestamp:n,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:c,initSegment:null,lastProgramDateTimeSeconds:p}}o=null,null===m?f=null:m=null}else if(T.startsWith(Ma)){const e=new Wa(T.slice(11)),t=e.get("method");if("NONE"===t)c=null;else if("AES-128"===t){const t=e.get("uri");if(!t)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let i=null;const r=e.get("iv");if(r){if(!hs.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(Pi);for(let t=0;t=8&&112===t[4]&&115===t[5]&&115===t[6]&&104===t[7]){const e=l(t).getUint32(0);r=gi(t.subarray(8,Math.min(e,t.length)))}}c={method:t,psshBox:r}}}}else if(T.startsWith(Na)){const e=T.slice(22),t=Number(e);if(!Number.isInteger(t)||t<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${e}'.`);w(t)}else if(T.startsWith(Oa)){const e=b(T.slice(17));if(null===e.offset){if(null===f)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");e.offset=f}m=e,f=e.offset+e.length}else if(T.startsWith(La)){if(y)continue;const e=T.slice(25),i=Date.parse(e);if(!Number.isFinite(i))continue;const r=i/1e3;if(p===r)continue;if(null===p&&this.segments.length>0){const e=a(this.segments),i=r-(e.timestamp+e.duration);for(const r of this.segments)r.unixEpochTimestamp=r.timestamp+i,t&&(r.timestamp=r.unixEpochTimestamp)}p=r,n=r,t&&(s=r)}else if("#EXT-X-DISCONTINUITY"===T)d=null;else if(T.startsWith(za)){const e=T.slice(22),t=Number(e);if(!Number.isFinite(t)||t<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${e}'.`);this.refreshInterval=t,g=t}else{if("#EXT-X-ENDLIST"===T){this.streamHasEnded=!0;break}if(T.startsWith(Ua)){"vod"===T.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==T)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");r=!0}}if(!r)throw new Error("Invalid M3U8 file; no #EXTM3U header.")}async getFirstSegment(){return 0===this.segments.length&&await this.runUpdateSegments(),this.segments[0]??null}async getSegmentAt(e,t){0===this.segments.length&&await this.runUpdateSegments();let i=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const r=x(this.segments,e,e=>e.timestamp);if(-1===r)return null;if(r0;for(;;){if(ae.segment===t);if(r)return r.age=this.nextInputCacheAge++,r.input;let a=null;(t.initSegment||t.firstSegment)&&(a=this.getInputForSegment(t.initSegment??t.firstSegment));const s={...this.input._formatOptions,isobmff:{...this.input._formatOptions.isobmff,resolveKeyId:this.input._formatOptions.isobmff?.resolveKeyId&&(e=>{if(!t.encryption||"SAMPLE-AES"!==t.encryption.method&&"SAMPLE-AES-CTR"!==t.encryption.method||!t.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(e);let i=e.psshBoxes;const{psshBox:r}=t.encryption;return null!==r.keyIds&&!r.keyIds.includes(e.keyId)||i.some(e=>ki(e,r))||(i=[...i,r]),this.input._formatOptions.isobmff.resolveKeyId({...e,psshBoxes:i})})}},n=new oo({source:new Ja(t.location.path,async e=>{i(e.isRoot);const r={...e,isRoot:!1};let a;const s=t.location.offset>0||null!==t.location.length;if(t.encryption&&"SAMPLE-AES"!==t.encryption.method&&"SAMPLE-AES-CTR"!==t.encryption.method)if("AES-128"===t.encryption.method){const e=t.encryption;i(e.iv);let n=await this.input._getSourceCached(r);if(s){const e=n.source.slice(t.location.offset,t.location.length??void 0).ref();n.free(),n=e}const o=((e,t,i)=>{let r=!1,a=0;const s=new Ai;return new ReadableStream({pull:async n=>{r||(s.init(await t()),r=!0);let o=e.requestSliceRange(a,0,65552);if(ae(o)&&(o=await o),!o||0===o.length)throw new Error("Invalid ciphertext.");const c=o.length;if(c%16!==0)throw new Error("Invalid ciphertext.");const l=65552===c?c-16:c,u=mo(o,l),d=new Uint8Array(l);for(let e=0;e16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const t=d.subarray(0,l-e);n.enqueue(t),n.close(),i()}},cancel:()=>{i()}})})(new uo(n.source),async()=>{const t={stack:[],error:void 0,hasError:!1};try{const i=us(t,await this.input._getSourceCached({path:e.keyUri,isRoot:!1},no),!1),r=new uo(i.source),a=await r.requestSlice(0,Pi);if(!a)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:mo(a,Pi),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{ds(t)}},()=>{n.free()});a=new ns(o).ref()}else i(!1);else if(a=await this.input._getSourceCached(r),s){const e=a.source.slice(t.location.offset,t.location.length??void 0).ref();a.free(),a=e}return a}),formats:this.input._formats.filter(e=>!(e instanceof Ds)),initInput:a??void 0,formatOptions:s});n._onFormatDetermined=e=>{if(("SAMPLE-AES"===t.encryption?.method||"SAMPLE-AES-CTR"===t.encryption?.method)&&!e._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:t,input:n,age:this.nextInputCacheAge++});if(this.inputCache.length>4){const e=he(this.inputCache,e=>e.age);i(-1!==e),this.inputCache.splice(e,1)}return n}async getLiveRefreshInterval(){return 0===this.getRemainingWaitTimeMs()&&await this.runUpdateSegments(),this.streamHasEnded?null:this.refreshInterval}}class ps extends fi{constructor(e){super(e),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{i(this.input._rootSource instanceof Qa);const e=await this.input._reader.requestEntireFile();i(e);const t=Ro(e,e.length,{ignore:qa}),{rootPath:r}=this.input._rootSource,a=[],s=[];for(let i=1;i"video"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],o=[...new Set(s.filter(e=>"audio"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],c=await Promise.all(a.map(async(e,t)=>{const a=[],c=e.attributes.get("codecs");let l;if(c)l=c.split(",").map(e=>e.trim());else{const t=this.getSegmentedInputForPath(e.fullPath),i=await t.getTrackBackings(),r=await Promise.all(i.map(async e=>({track:e,codec:await e.getCodec()})));l=await Promise.all(r.filter(e=>null!==e.codec).map(e=>e.track.getDecoderConfig().then(e=>e.codec)))}const u=e.attributes.get("video"),d=e.attributes.get("audio"),h=l.some(e=>qt.includes(ii(e))),f=l.some(e=>Ht.includes(ii(e)));if(null!==u&&!h){if(!n.includes(u))throw new Error(`Invalid M3U8 file; variant stream references video group "${u}" which is not defined in any #EXT-X-MEDIA tags.`);const e=s.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===u&&"video"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const a=ue(r,t),s=this.getSegmentedInputForPath(a),n=(await s.getTrackBackings()).find(e=>"video"===e.getType());if(!n||null===await n.getCodec())break e;const o=await n.getDecoderConfig().then(e=>e?.codec??null);i(null!==o),l.push(o)}}if(null!==d&&!f){if(!o.includes(d))throw new Error(`Invalid M3U8 file; variant stream references audio group "${d}" which is not defined in any #EXT-X-MEDIA tags.`);const e=s.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===d&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const a=ue(r,t),s=this.getSegmentedInputForPath(a),n=(await s.getTrackBackings()).find(e=>"audio"===e.getType());if(!n||null===await n.getCodec())break e;const o=await n.getDecoderConfig().then(e=>e?.codec??null);i(null!==o),l.push(o)}}l=[...new Set(l)];let m=null,p=null;const g=e.attributes.getAsNumber("bandwidth");i(null!==g);const k=e.attributes.getAsNumber("average-bandwidth"),y=e.attributes.get("name");for(const i of l){const r=ii(i);if(null!==r)if(qt.includes(r)){if(null!==m)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");m=i;const r=e.attributes.get("video");if(null===r){const i=e.attributes.get("resolution");let r=null,s=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(r=Number(e[1]),s=Number(e[2]))}a.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:O,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:m,pairingMask:1n<0?r:null}})}else{if(!o.includes(r))throw new Error(`Invalid M3U8 file; variant stream references audio group "${r}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of s){const s=i.attributes.get("group-id"),n=i.attributes.get("type");if(s!==r||"audio"!==n.toLowerCase())continue;const o=i.attributes.get("channels")??e.attributes.get("channels"),c=null!==o?Number(o.split("/")[0]):null;a.push({id:-1,demuxer:this,backingTrack:null,default:bs(i.attributes),autoselect:bs(i.attributes)||ws(i.attributes),languageCode:Ts(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:i.fullPath??e.fullPath,fullCodecString:p,pairingMask:1n<0?c:null}})}}}}return a})),l=[],u=e=>{const t=l.find(t=>t.fullPath===e.fullPath&&t.info.type===e.info.type);t?(t.pairingMask|=e.pairingMask,t.default||(t.default=e.default),t.autoselect||(t.autoselect=e.autoselect),t.lineNumber=Math.min(t.lineNumber,e.lineNumber),null!==e.peakBitrate&&(t.peakBitrate=Math.max(t.peakBitrate??-1/0,e.peakBitrate)),null!==e.averageBitrate&&(t.averageBitrate=Math.max(t.averageBitrate??-1/0,e.averageBitrate)),t.languageCode===O&&(t.languageCode=e.languageCode)):(e.id=l.length+1,l.push(e))};for(const i of c)for(const e of i)u(e);l.sort((e,t)=>e.lineNumber-t.lineNumber),this.trackBackings=[];for(const i of l)"video"===i.info.type?this.trackBackings.push(new ks(i)):this.trackBackings.push(new ys(i));this.internalTracks=l})())}async getTrackBackings(){return await this.readMetadata(),i(this.trackBackings),this.trackBackings}getSegmentedInputForPath(e){let t=this.segmentedInputs.find(t=>t.path===e);if(t)return t;let i=null;if(this.internalTracks){i=this.internalTracks.filter(t=>t.fullPath===e).map(e=>({id:e.id,type:e.info.type}))}return t=new ms(this,e,i,null),this.segmentedInputs.push(t),t}async getMetadataTags(){return{}}async getMimeType(){return Ea}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class gs{constructor(e){this.internalTrack=e,this.hydrationPromise=null}hydrate(){return this.hydrationPromise??(this.hydrationPromise=(async()=>{const e=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let t=null;const r=(await e.getTrackBackings()).filter(e=>e.getType()===this.getType());if(1===r.length)t=r[0];else if(this instanceof ks){for(const i of r)if(await i.getCodec()===this.getCodec()){t=i;break}}else{i(this instanceof ys);for(const e of r)if(await e.getCodec()===this.getCodec()){t=e;break}}if(!t)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=t})())}delegate(e){return this.internalTrack.backingTrack?e():this.hydrate().then(e)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return{...Se,default:this.internalTrack.autoselect,primary:this.internalTrack.default}}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){i(this.internalTrack.demuxer.internalTracks);const e=this.internalTrack.info.type;let t=0;for(const i of this.internalTrack.demuxer.internalTracks)if(i.info.type===e&&t++,i===this.internalTrack)break;return t}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(e){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(e))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}async getDurationFromMetadata(e){return await this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(e)}async getLiveRefreshInterval(){return await this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}async getFirstPacket(e){return await this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(e)}async getPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getPacket(e,t)}async getKeyPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(e,t)}async getNextPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getNextPacket(e,t)}async getNextKeyPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(e,t)}}class ks extends gs{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return ii(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}async getColorSpace(){return await this.hydrate(),this.backingVideoTrack.getColorSpace()}async canBeTransparent(){return await this.hydrate(),this.backingVideoTrack.canBeTransparent()}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingVideoTrack.getDecoderConfig()}}class ys extends gs{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return ii(this.internalTrack.fullCodecString)}getNumberOfChannels(){return null!==this.internalTrack.info.numberOfChannels?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingAudioTrack.getDecoderConfig()}}const bs=e=>{const t=e.get("default");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},ws=e=>{const t=e.get("autoselect");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},Ts=e=>{if(null===e)return O;const t=e.split("-")[0];return t||O};class Ss{constructor(){this._isIsobmff=!1}}class vs extends Ss{constructor(){super(...arguments),this._isIsobmff=!0}async _getMajorBrand(e){let t=e._reader.requestSlice(0,12);if(ae(t)&&(t=await t),!t)return null;t.skip(4);const i=_o(t,4);return"ftyp"!==i&&"styp"!==i?null:_o(t,4)}_createDemuxer(e){return new Di(e)}}class Ps extends vs{async _canReadInput(e){const t=await this._getMajorBrand(e);if(null!==t)return"qt "!==t;let i=0;for(let r=0;r<10;r++){let t=e._reader.requestSlice(i,8);if(ae(t)&&(t=await t),!t)return!1;let r=To(t),a=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(ae(t)&&(t=await t),!t)return!1;r=Io(t),a=16}if(r8)return!1;if(nr(i,r)!==Ji.EBML)return!1;const a=cr(i);if("number"!==typeof a)return!1;let s=e._reader.requestSlice(i.filePos,a);if(ae(s)&&(s=await s),!s)return!1;const n=i.filePos;for(;s.filePos<=n+a-2;){const e=lr(s);if(!e)break;const{id:i,size:r}=e,a=s.filePos;if(void 0===r)return!1;switch(i){case Ji.EBMLVersion:if(1!==nr(s,r))return!1;break;case Ji.EBMLReadVersion:if(1!==nr(s,r))return!1;break;case Ji.DocType:if(ur(s,r)!==t)return!1;break;case Ji.DocTypeVersion:if(nr(s,r)>4)return!1}s.filePos=a+r}return!0}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new Lr(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class Cs extends xs{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class Bs extends Ss{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,Oo);if(ae(i)&&(i=await i),!i)break;const r=qo(i);if(!r)break;t=i.filePos+r.size}const i=await Wr(e._reader,t,t+4096);if(!i)return!1;const r=i.header,a=oi(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+a,4);if(ae(s)&&(s=await s),!s)return!1;const n=To(s);if(n===si||n===ni)return!0;t=i.startPos+i.header.totalSize;const o=await Wr(e._reader,t,t+4);if(!o)return!1;const c=o.header;return r.channel===c.channel&&r.sampleRate===c.sampleRate}_createDemuxer(e){return new Hr(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class Es extends Ss{async _canReadInput(e){let t=e._reader.requestSlice(0,12);if(ae(t)&&(t=await t),!t)return!1;const i=_o(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===_o(t,4)}_createDemuxer(e){return new sa(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class _s extends Ss{async _canReadInput(e){let t=e._reader.requestSlice(0,4);return ae(t)&&(t=await t),!!t&&"OggS"===_o(t,4)}_createDemuxer(e){return new Zr(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class Rs extends Ss{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,Oo);if(ae(i)&&(i=await i),!i)break;const r=qo(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return ae(i)&&(i=await i),!!i&&"fLaC"===_o(i,4)}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new ha(e)}}class Fs extends Ss{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,Oo);if(ae(i)&&(i=await i),!i)break;const r=qo(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(ae(i)&&(i=await i),!i)return!1;const r=ca(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),ae(i)&&(i=await i),!i)return!1;const a=ca(i);return!!a&&(r.objectType===a.objectType&&r.samplingFrequencyIndex===a.samplingFrequencyIndex&&r.channelConfiguration===a.channelConfiguration)}_createDemuxer(e){return new ua(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class As extends Ss{async _canReadInput(e){let t=e._reader.requestSlice(0,205);if(ae(t)&&(t=await t),!t)return!1;const i=mo(t,205);return 71===i[0]&&71===i[188]||(71===i[0]&&71===i[204]||71===i[4]&&71===i[196])}_createDemuxer(e){return new wa(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class Ds extends Ss{async _canReadInput(e){let t=e._reader.requestSlice(0,7);if(ae(t)&&(t=await t),!t)return!1;if(!("#EXTM3U"===_o(t,7)))return!1;if(!(e._rootSource instanceof Qa))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return e._rootSource._usedForHls=!0,!0}_createDemuxer(e){return new ps(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return Ea}}const Ms=new Ps,Ns=new Is,Os=new xs,Ls=new Cs,zs=new Bs,Us=new Es,qs=new _s,Ws=new Fs,Hs=new Rs,Vs=new As,js=new Ds,Ks=[js,Ms,Ns,Os,Ls,Us,qs,Hs,zs,Ws,Vs],Xs=[js,Ms,Ns,zs,Ws,Vs];var $s=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,a=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===a)return a=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return a|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else a|=1}catch(n){i(n)}if(1===a)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});ce();let Gs=-1/0,Qs=-1/0,Ys=null;"undefined"!==typeof FinalizationRegistry&&(Ys=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-Gs>=1e3&&(be._error("A VideoSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your VideoSamples as soon as you're done using them."),Gs=t),"undefined"!==typeof VideoFrame&&e.data instanceof VideoFrame&&e.data.close()):(t-Qs>=1e3&&(be._error("An AudioSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your AudioSamples as soon as you're done using them."),Qs=t),"undefined"!==typeof AudioData&&e.data instanceof AudioData&&e.data.close())}));class Js{constructor(){this._referenceCount=0,this._lastAllocationBuffer=null}}const Zs=["I420","I420P10","I420P12","I420A","I420AP10","I420AP12","I422","I422P10","I422P12","I422A","I422AP10","I422AP12","I444","I444P10","I444P12","I444A","I444AP10","I444AP12","NV12","RGBA","RGBX","BGRA","BGRX"],en=new Set(Zs);class tn{get codedWidth(){return this.visibleRect.width}get codedHeight(){return this.visibleRect.height}get displayWidth(){return this.rotation%180===0?this.squarePixelWidth:this.squarePixelHeight}get displayHeight(){return this.rotation%180===0?this.squarePixelHeight:this.squarePixelWidth}get microsecondTimestamp(){return Math.trunc(j*this.timestamp)}get microsecondDuration(){return Math.trunc(j*this.duration)}get hasAlpha(){return this.format&&this.format.includes("A")}constructor(e,t){if(this._closed=!1,e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e)){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0===t.format||!en.has(t.format))throw new TypeError("init.format must be one of: "+Zs.join(", "));if(!Number.isInteger(t.codedWidth)||t.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(t.codedHeight)||t.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.layout){if(!Array.isArray(t.layout))throw new TypeError("init.layout, when provided, must be an array.");for(const e of t.layout){if(!e||"object"!==typeof e||Array.isArray(e))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(e.offset)||e.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(e.stride)||e.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==t.visibleRect&&me(t.visibleRect,"init.visibleRect"),void 0!==t.displayWidth&&(!Number.isInteger(t.displayWidth)||t.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(void 0!==t.displayHeight&&(!Number.isInteger(t.displayHeight)||t.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(void 0!==t.displayWidth!==(void 0!==t.displayHeight))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=t.format,this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0;const i=t.layout??hn(t.format,t.codedWidth,t.codedHeight);let r=t.colorSpace??null;null===r&&(r="RGBA"===this.format||"RGBX"===this.format||"BGRA"===this.format||"BGRX"===this.format?{primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:{primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:t.visibleRect?.left??0,top:t.visibleRect?.top??0,width:t.visibleRect?.width??t.codedWidth,height:t.visibleRect?.height??t.codedHeight},void 0!==t.displayWidth?(this.squarePixelWidth=this.rotation%180===0?t.displayWidth:t.displayHeight,this.squarePixelHeight=this.rotation%180===0?t.displayHeight:t.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=t._doNotCopy?c(e):c(e).slice(),this._layout=i,this.colorSpace=new on(r)}else if("undefined"!==typeof VideoFrame&&e instanceof VideoFrame){if(void 0!==t?.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(void 0!==t?.timestamp&&!Number.isFinite(t?.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(void 0!==t?.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");void 0!==t?.visibleRect&&me(t.visibleRect,"init.visibleRect"),this._data=e,this._layout=null,this.format=e.format,this.visibleRect={left:e.visibleRect?.x??0,top:e.visibleRect?.y??0,width:e.visibleRect?.width??e.codedWidth,height:e.visibleRect?.height??e.codedHeight},this.rotation=t?.rotation??0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=t?.timestamp??e.timestamp/1e6,this.duration=t?.duration??(e.duration??0)/1e6,this.colorSpace=new on(e.colorSpace)}else if("undefined"!==typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!==typeof SVGImageElement&&e instanceof SVGImageElement||"undefined"!==typeof ImageBitmap&&e instanceof ImageBitmap||"undefined"!==typeof HTMLVideoElement&&e instanceof HTMLVideoElement||"undefined"!==typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!==typeof OffscreenCanvas&&e instanceof OffscreenCanvas){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.visibleRect&&me(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new tn(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*j),duration:Math.trunc((t.duration??0)*j)||void 0,visibleRect:t.visibleRect&&{x:t.visibleRect.left,y:t.visibleRect.top,width:t.visibleRect.width,height:t.visibleRect.height}}),t);let i=0,r=0;if("naturalWidth"in e?(i=e.naturalWidth,r=e.naturalHeight):"videoWidth"in e?(i=e.videoWidth,r=e.videoHeight):"width"in e&&(i=Number(e.width),r=Number(e.height)),!i||!r)throw new TypeError("Could not determine dimensions.");const a=t.visibleRect??{left:0,top:0,width:i,height:r},s=new OffscreenCanvas(a.width,a.height),n=s.getContext("2d",{alpha:Z(),willReadFrequently:!0});if(!n)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");n.drawImage(e,-a.left,-a.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:a.width,height:a.height},this.squarePixelWidth=a.width,this.squarePixelHeight=a.height,this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0,this.colorSpace=new on({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof Js))throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=e,e._referenceCount++,this.format=e.getFormat(),null!==this.format&&!Zs.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:e.getCodedWidth(),height:e.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=e.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=e.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0,this.colorSpace=e.getColorSpace()}this.encodeOptions=t?.encodeOptions??{},this.pixelAspectRatio=fe({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),Ys?.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return i(null!==this._data),this._data instanceof Js?new tn(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):cn(this._data)?new tn(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(i(this._layout),new tn(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new tn(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(Ys?.unregister(this),this._data instanceof Js?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):cn(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){if(dn(e),this._closed)throw new Error("VideoSample is closed.");if(null==(e.format??this.format))throw new Error("Cannot get allocation size when format is null.");if(cn(this._data))return this._data.allocationSize(e);return mn(this,e).allocationSize}async copyTo(e,t={}){if(!w(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(dn(t),this._closed)throw new Error("VideoSample is closed.");if(null==(t.format??this.format))throw new Error("Cannot copy video sample data when format is null.");if(i(null!==this._data),cn(this._data))return this._data.copyTo(e,t);if(t.format&&!["RGBA","RGBX","BGRA","BGRX"].includes(this.format)&&["RGBA","RGBX","BGRA","BGRX"].includes(t.format)){if(!(this._data instanceof Js)){if("undefined"===typeof VideoFrame)throw new Error("For this sample, converting from a non-RGB to an RGB format requires VideoFrame to be defined.");const i=this.toVideoFrame(),r=await i.copyTo(e,t);return i.close(),r}{const i={stack:[],error:void 0,hasError:!1};try{const r=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,a;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(a=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");a&&(r=function(){try{a.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t}(i,await this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation},t.colorSpace??"srgb"),!1);if(!(r instanceof tn))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(r.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${r.format}' instead.`);return await r.copyTo(e,t)}catch(u){i.error=u,i.hasError=!0}finally{$s(i)}}}const r=mn(this,t);i(this.format);const a=c(e);if(a.byteLength!(e.data instanceof Uint8Array)||!Number.isInteger(e.stride)||e.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');n=e}else if(this._data instanceof Uint8Array)i(this._layout),i(this._layout.length===s.length),n=this._layout.map((e,t)=>{const i=Math.ceil(this.codedHeight/s[t].heightDivisor);return{data:this._data.subarray(e.offset,e.offset+e.stride*i),stride:e.stride}});else{const e=this._data.getContext("2d");i(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);n=[{data:c(t.data),stride:4*this.codedWidth}]}const o=[],l=s.length;for(let i=0;is.byteLength)throw new Error("Source buffer OOB read.");if(l+u>a.byteLength)throw new Error("Destination buffer OOB write.");const i=s.subarray(c,c+u);a.set(i,l),c+=t,l+=e.destinationStride}o.push(d)}if(void 0!==t.format){const e=this.format.startsWith("RGB")!==t.format.startsWith("RGB"),i=this.format.includes("X")&&t.format.includes("A");if(e||i)for(let t=0;te+t.data.byteLength,0),i=new Uint8Array(t);let r=0;const a=[];for(const s of e)i.set(s.data,r),a.push(r),r+=s.data.byteLength;return new VideoFrame(i,{format:this.format,layout:e.map((e,t)=>({offset:a[t],stride:e.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}return cn(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(i(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(e,t,i,r,a,s,n,o,c){let l=0,u=0,d=this.displayWidth,h=this.displayHeight,f=0,m=0,p=this.displayWidth,g=this.displayHeight;if(void 0!==s?(l=t,u=i,d=r,h=a,f=s,m=n,void 0!==o?(p=o,g=c):(p=d,g=h)):(f=t,m=i,void 0!==r&&(p=r,g=a)),!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(l))throw new TypeError("sx must be a number.");if(!Number.isFinite(u))throw new TypeError("sy must be a number.");if(!Number.isFinite(d)||d<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(h)||h<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(f))throw new TypeError("dx must be a number.");if(!Number.isFinite(m))throw new TypeError("dy must be a number.");if(!Number.isFinite(p)||p<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(g)||g<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:l,sy:u,sWidth:d,sHeight:h}=this._rotateSourceRegion(l,u,d,h,this.rotation));const k=this.toCanvasImageSource();e.save();const y=f+p/2,b=m+g/2;e.translate(y,b),e.rotate(this.rotation*Math.PI/180);const w=this.rotation%180===0?1:p/g;e.scale(1/w,w),e.drawImage(k,l,u,d,h,-p/2,-g/2,p,g),e.restore()}drawWithFit(e,t){if(!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&un(t.crop,"options.");const i=e.canvas.width,r=e.canvas.height,a=t.rotation??this.rotation,[s,n]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let o,c,l,u,d=t.crop;d&&(d=ln(d,s,n));const{sx:h,sy:f,sWidth:m,sHeight:p}=this._rotateSourceRegion(t.crop?.left??0,t.crop?.top??0,t.crop?.width??s,t.crop?.height??n,a);if("fill"===t.fit)o=0,c=0,l=i,u=r;else{const[e,a]=t.crop?[t.crop.width,t.crop.height]:[s,n],d="contain"===t.fit?Math.min(i/e,r/a):Math.max(i/e,r/a);l=e*d,u=a*d,o=(i-l)/2,c=(r-u)/2}e.save();const g=a%180===0?1:l/u;e.translate(i/2,r/2),e.rotate(a*Math.PI/180),e.scale(1/g,g),e.translate(-i/2,-r/2),e.drawImage(this.toCanvasImageSource(),h,f,m,p,o,c,l,u),e.restore()}_rotateSourceRegion(e,t,i,r,a){return 90===a?[e,t,i,r]=[t,this.squarePixelHeight-e-i,r,i]:180===a?[e,t]=[this.squarePixelWidth-e-i,this.squarePixelHeight-t-r]:270===a&&([e,t,i,r]=[this.squarePixelWidth-t-r,e,r,i]),{sx:e,sy:t,sWidth:i,sHeight:r}}_drawWithFitAndMipmapping(e,t,i){const r=e.width,a=e.height,[s,n]=i.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],o=i.crop?i.crop.width:s,c=i.crop?i.crop.height:n;let l=0;2*r0?nn(u,d):{canvas:e,context:t,isNew:i.targetIsFresh};f.imageSmoothingQuality="high",i.fillBlack?(f.fillStyle="black",f.fillRect(0,0,u,d)):m||f.clearRect(0,0,u,d),this.drawWithFit(f,{fit:i.fit,rotation:i.rotation,crop:i.crop}),f.globalCompositeOperation="copy";for(let p=l;p>1;p--){const e=r*2**p,t=a*2**p;f.drawImage(h,0,0,e,t,0,0,e/2,t/2)}f.globalCompositeOperation="source-over",l>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(h,0,0,2*r,2*a,0,0,r,a),t.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(i(null!==this._data),this._data instanceof Js||this._data instanceof Uint8Array){const e=this.toVideoFrame();return queueMicrotask(()=>e.close()),e}return this._data}async transform(e){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.width&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(void 0!==e.height&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(void 0!==e.roundDimensionsTo&&(!Number.isInteger(e.roundDimensionsTo)||e.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(void 0!==e.fit&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==e.width&&void 0!==e.height&&void 0===e.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==e.rotate&&![0,90,180,270].includes(e.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(void 0!==e.crop&&un(e.crop,"options."),void 0!==e.alpha&&!["keep","discard"].includes(e.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");const t=r(this.rotation+(e.rotate??0)),[i,a]=t%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let s=e.crop;s&&(s=ln(s,i,a));const n=s?s.width:i,o=s?s.height:a,c=n/o;let l,u;void 0!==e.width&&void 0===e.height?(l=e.width,u=l/c):void 0===e.width&&void 0!==e.height?(u=e.height,l=u*c):void 0!==e.width&&void 0!==e.height?(l=e.width,u=e.height):(l=n,u=o),l=z(l,e.roundDimensionsTo??1),u=z(u,e.roundDimensionsTo??1);const d={width:l,height:u,fit:e.fit??"fill",rotation:t,crop:s??{left:0,top:0,width:i,height:a},alpha:e.alpha??"keep"};for(const r of rn){let e=r(this,d);if(ae(e)&&(e=await e),null!==e)return e}const{canvas:h,context:f,isNew:m}=nn(d.width,d.height);return this._drawWithFitAndMipmapping(h,f,{fit:d.fit,rotation:d.rotation,crop:d.crop,targetIsFresh:m,fillBlack:"discard"===d.alpha}),new tn(h,{timestamp:this.timestamp,duration:this.duration,rotation:0})}setRotation(e){if(![0,90,180,270].includes(e))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}setDuration(e){if(!Number.isFinite(e)||e<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=e}setEncodeOptions(e){if(!e||"object"!==typeof e)throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=e}[Symbol.dispose](){this.close()}}const rn=[],an=[];let sn=0;const nn=(e,t)=>{for(const a of an)if(a.canvas.width===e&&a.canvas.height===t)return a.age=sn++,{canvas:a.canvas,context:a.context,isNew:!1};let i;if("undefined"!==typeof OffscreenCanvas)i=new OffscreenCanvas(e,t);else{if("undefined"===typeof window||"undefined"===typeof document)throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");i=document.createElement("canvas"),i.width=e,i.height=t}const r=i.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return an.length>=3&&an.splice(he(an,e=>e.age),1),an.push({canvas:i,context:r,age:sn++}),{canvas:i,context:r,isNew:!0}};class on{constructor(e){if(void 0!==e){if(!e||"object"!==typeof e)throw new TypeError("init.colorSpace, when provided, must be an object.");const t=Object.keys(h);if(null!=e.primaries&&!t.includes(e.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${t.join(", ")}.`);const i=Object.keys(m);if(null!=e.transfer&&!i.includes(e.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${i.join(", ")}.`);const r=Object.keys(g);if(null!=e.matrix&&!r.includes(e.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${r.join(", ")}.`);if(null!=e.fullRange&&"boolean"!==typeof e.fullRange)throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=e?.primaries??null,this.transfer=e?.transfer??null,this.matrix=e?.matrix??null,this.fullRange=e?.fullRange??null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}const cn=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,ln=(e,t,r)=>{const a=Math.min(e.left,t),s=Math.min(e.top,r),n=Math.min(e.width,t-a),o=Math.min(e.height,r-s);return i(n>=0),i(o>=0),{left:a,top:s,width:n,height:o}},un=(e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},dn=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!==typeof e.format)throw new TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw new TypeError("options.layout, when provided, must be an array.");for(const t of e.layout){if(!t||"object"!==typeof t)throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==e.rect){if(!e.rect||"object"!==typeof e.rect)throw new TypeError("options.rect, when provided, must be an object.");if(void 0!==e.rect.x&&(!Number.isInteger(e.rect.x)||e.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(void 0!==e.rect.y&&(!Number.isInteger(e.rect.y)||e.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(void 0!==e.rect.width&&(!Number.isInteger(e.rect.width)||e.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(void 0!==e.rect.height&&(!Number.isInteger(e.rect.height)||e.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},hn=(e,t,i)=>{const r=fn(e),a=[];let s=0;for(const n of r){const e=Math.ceil(t/n.widthDivisor),r=Math.ceil(i/n.heightDivisor),o=e*n.sampleBytes,c=o*r;a.push({offset:s,stride:o}),s+=c}return a},fn=e=>{const t=(e,t,i,r,a)=>{const s=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:i,heightDivisor:r},{sampleBytes:t,widthDivisor:i,heightDivisor:r}];return a&&s.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),s};switch(e){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:F(e),i(!1)}},mn=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,a=pn(i,r,e.codedWidth,e.codedHeight,e.format),s=t.layout;let n;if(t.format&&t.format!==e.format){if(!["RGBA","RGBX","BGRA","BGRX"].includes(t.format))throw new Error("NotSupportedError: Invalid destination format.");n=t.format}else n=e.format;return kn(a,n,s)},pn=(e,t,i,r,a)=>{const s={...e};if(void 0!==t){if(0===t.width||0===t.height)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>i)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");s.x=t.x||0,s.y=t.y||0,s.width=t.width||0,s.height=t.height||0}if(!gn(a,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},gn=(e,t)=>{if(null===e)return!0;const i=fn(e);for(let r=0;r{const r=fn(t),a=r.length;if(void 0!==i&&i.length!==a)throw new TypeError(`Layout must have ${a} planes.`);let s=0;const n=[],o=[];for(let c=0;c4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(h),s=Math.max(s,h);for(let e=0;e 0.");if(!Number.isInteger(e.numberOfChannels)||0===e.numberOfChannels)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(e?.timestamp))throw new TypeError("init.timestamp must be a number.");const t=e.data.byteLength/(Tn(e.format)*e.numberOfChannels);if(!Number.isInteger(t))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");let i;if(this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=t,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp,this.duration=t/e.sampleRate,e.data instanceof ArrayBuffer)i=new Uint8Array(e.data);else{if(!ArrayBuffer.isView(e.data))throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");i=new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}const r=this.numberOfFrames*this.numberOfChannels*Tn(this.format);if(i.byteLength=this.numberOfFrames)throw new RangeError("frameOffset out of range");const r=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-i;if(r>this.numberOfFrames-i)throw new RangeError("frameCount out of range");const a=Tn(t),s=Sn(t);if(s&&e.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!s&&0!==e.planeIndex)throw new RangeError("planeIndex out of range");return(s?r:r*this.numberOfChannels)*a}copyTo(e,t){if(!w(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!yn.has(t.format))throw new TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:r,frameCount:a,frameOffset:s}=t;let{planeIndex:n}=t,o=this.format;const c=r??this.format;if(!c)throw new Error("Destination format not determined");const u=this.numberOfFrames,d=this.numberOfChannels,h=s??0;if(h>=u)throw new RangeError("frameOffset out of range");const f=void 0!==a?a:u-h;if(f>u-h)throw new RangeError("frameCount out of range");const m=Tn(c),p=Sn(c);if(p&&n>=d)throw new RangeError("planeIndex out of range");if(!p&&0!==n)throw new RangeError("planeIndex out of range");const g=(p?f:f*d)*m;if(e.byteLength2&&c!==o)return void xn(this._data,k,o,c,d,n,h,f);try{return void this._data.copyTo(e,{planeIndex:n,frameOffset:h,frameCount:f,format:c})}catch(I){if("f32-planar"===c)throw I;o="f32-planar"}}const b=vn(o),T=Tn(o),S=Sn(o);let v;if(this._data instanceof bn){const e=e=>{const t=this._data.getDataPlane(e);if(!(t instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const i=u*T*(S?1:d);if(t.byteLength!==i)throw new TypeError(`Data plane ${e} has invalid size. Expected exactly ${i} bytes, got ${t.byteLength} bytes.`);return t};if(S)if(p)v=e(n),n=0;else{v=new Uint8Array(u*T*d);for(let t=0;tthis.numberOfFrames)throw new RangeError("startFrame out of range.");if(t>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(t0)for(let r=0;r0&&this.copyTo(a,{planeIndex:0,format:this.format,frameOffset:e,frameCount:i});return new wn({data:a,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(Ys?.unregister(this),this._data instanceof bn?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):In(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof bn?this._createAudioDataFromData():In(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(Sn(this.format)){const e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels);for(let i=0;i0;){const a=Math.min(s,o),c=new Float32Array(i*a);for(let t=0;t0;){const a=Math.min(s,o),l=new Float32Array(i*a);for(let t=0;t{switch(e){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},Sn=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},vn=e=>{switch(e){case"u8":case"u8-planar":return(e,t)=>(e.getUint8(t)-128)/128;case"s16":case"s16-planar":return(e,t)=>e.getInt16(t,!0)/32768;case"s32":case"s32-planar":return(e,t)=>e.getInt32(t,!0)/2147483648;case"f32":case"f32-planar":return(e,t)=>e.getFloat32(t,!0)}},Pn=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,N(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,N(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,N(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},In=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,xn=(e,t,i,r,a,s,n,o)=>{const c=vn(i),u=Pn(r),d=Tn(i),h=Tn(r),f=Sn(i);if(Sn(r))if(f){const r=new ArrayBuffer(o*d),a=l(r);e.copyTo(r,{planeIndex:s,frameOffset:n,frameCount:o,format:i});for(let e=0;e{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!==typeof e.metadataOnly)throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!==typeof e.verifyKeyPackets)throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(void 0!==e.skipLiveWait&&"boolean"!==typeof e.skipLiveWait)throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},_n=e=>{if(!le(e))throw new TypeError("timestamp must be a number.")},Rn=(e,t,i)=>i.verifyKeyPackets?t.then(async t=>{if(!t||"delta"===t.type)return t;const i=await e.determinePacketType(t);return i&&(t.type=i),t}):t;class Fn{constructor(e){if(!(e instanceof Xn))throw new TypeError("track must be an InputTrack.");this._track=e}async getFirstPacket(e={}){if(En(e),this._track.input._disposed)throw new lo;return Rn(this._track,this._track._backing.getFirstPacket(e),e)}async getFirstKeyPacket(e={}){En(e);const t=await this.getFirstPacket(e);return t?"key"===t.type?t:this.getNextKeyPacket(t,e):null}async getPacket(e,t={}){if(_n(e),En(t),this._track.input._disposed)throw new lo;return Rn(this._track,this._track._backing.getPacket(e,t),t)}async getNextPacket(e,t={}){if(!(e instanceof pi))throw new TypeError("packet must be an EncodedPacket.");if(En(t),this._track.input._disposed)throw new lo;return Rn(this._track,this._track._backing.getNextPacket(e,t),t)}async getKeyPacket(e,t={}){if(_n(e),En(t),this._track.input._disposed)throw new lo;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const r=await this._track._backing.getKeyPacket(e,t);if(!r)return r;i("key"===r.type);return"delta"===await this._track.determinePacketType(r)?this.getKeyPacket(r.timestamp-1/await this._track.getTimeResolution(),t):r}async getNextKeyPacket(e,t={}){if(!(e instanceof pi))throw new TypeError("packet must be an EncodedPacket.");if(En(t),this._track.input._disposed)throw new lo;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const r=await this._track._backing.getNextKeyPacket(e,t);if(!r)return r;i("key"===r.type);return"delta"===await this._track.determinePacketType(r)?this.getNextKeyPacket(r,t):r}packets(e,t,i={}){if(void 0!==e&&!(e instanceof pi))throw new TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!i?.metadataOnly)throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof pi))throw new TypeError("endPacket must be an EncodedPacket.");if(En(i),this._track.input._disposed)throw new lo;const r=[];let{promise:a,resolve:s}=B(),{promise:n,resolve:o}=B(),c=!1,l=!1,u=null,d=!1;const h=[],f=()=>Math.max(2,h.length);(async()=>{let u=e??await this.getFirstPacket(i);for(;u&&!l&&!this._track.input._disposed&&!(t&&u.sequenceNumber>=t?.sequenceNumber);)r.length>f()?(({promise:n,resolve:o}=B()),await n):(r.push(u),s(),({promise:a,resolve:s}=B()),u=await this.getNextPacket(u,i));c=!0,s()})().catch(e=>{d||(u=e,d=!0,s())});const m=this._track;return{async next(){for(;;){if(m.input._disposed)throw new lo;if(l)return{value:void 0,done:!0};if(d)throw u;if(r.length>0){const e=r.shift(),t=performance.now();for(h.push(t);h.length>0&&t-h[0]>=1e3;)h.shift();return o(),{value:e,done:!1}}if(c)return{value:void 0,done:!0};await a}},return:async()=>(l=!0,o(),s(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}}class An{constructor(e,t){this.onSample=e,this.onError=t}}class Dn{mediaSamplesInRange(e=-1/0,t=1/0,i){_n(e),_n(t);const r=[];let a=!1,s=null,{promise:n,resolve:o}=B(),{promise:c,resolve:l}=B(),u=!1,d=!1,h=!1,f=null,m=null,p=!1;const g={...i,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{f=await this._createDecoder(i=>{l(),i.timestamp>=t&&(d=!0),d?i.close():(s&&(i.timestamp>e?(r.push(s),a=!0):s.close()),i.timestamp>=e&&(r.push(i),a=!0),s=a?null:i,r.length>0&&(o(),({promise:n,resolve:o}=B())))},e=>{p||(m=e,p=!0,o())});const i=this._createPacketSink(),k=await i.getKeyPacket(e,g)??await i.getFirstKeyPacket(g);let y=k;const b=i.packets(k??void 0,void 0,g);for(await b.next();y&&!d&&!this._track.input._disposed;){const e=Mn(r.length);if(r.length+f.getDecodeQueueSize()>e){({promise:c,resolve:l}=B()),await c;continue}f.decode(y);const t=await b.next();if(t.done)break;y=t.value}await b.return(),h||this._track.input._disposed||await f.flush(),!a&&s&&r.push(s),u=!0,o()})().catch(e=>{p||(m=e,p=!0,o())}).finally(()=>{f?.close()});const k=this._track,y=()=>{s?.close();for(const e of r)e.close()};return{async next(){for(;;){if(k.input._disposed)throw h=!0,d=!0,y(),new lo;if(h)return{value:void 0,done:!0};if(p)throw h=!0,d=!0,y(),m;if(r.length>0){const e=r.shift();return l(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};await n}},return:async()=>(h=!0,d=!0,l(),o(),y(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(e,t){(e=>{if(!(Symbol.iterator in e)&&!(Symbol.asyncIterator in e))throw new TypeError("Argument must be an iterable or async iterable.")})(e);const r=async function*(e){Symbol.iterator in e?yield*e[Symbol.iterator]():yield*e[Symbol.asyncIterator]()}(e),a=[],s=[];let{promise:n,resolve:o}=B(),{promise:c,resolve:l}=B(),u=!1,d=!1,h=null,f=null,m=!1;const p=e=>{s.push(e),o(),({promise:n,resolve:o}=B())},g={...t,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{h=await this._createDecoder(e=>{if(l(),d)return void e.close();let t=0;for(;a.length>0&&e.timestamp-a[0]>-1e-10;)t++,a.shift();if(t>0)for(let i=0;i{m||(f=e,m=!0,o())});const e=this._createPacketSink();let t=null,n=null,k=-1;const y=async()=>{i(n),i(h);let t=n;for(h.decode(t);t.sequenceNumberr&&!d;)({promise:c,resolve:l}=B()),await c;if(d)break;const a=await e.getNextPacket(t,g);i(a),h.decode(a),t=a}k=-1},b=async()=>{i(h),await h.flush();for(let e=0;e{m||(f=e,m=!0,o())}).finally(()=>{h?.close()});const k=this._track,y=()=>{for(const e of s)e?.close()};return{async next(){for(;;){if(k.input._disposed)throw d=!0,y(),new lo;if(d)return{value:void 0,done:!0};if(m)throw d=!0,y(),f;if(s.length>0){const e=s.shift();return i(void 0!==e),l(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};await n}},return:async()=>(d=!0,l(),o(),y(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}}const Mn=e=>0===e?40:8;class Nn extends An{constructor(e,t,r,a,s,n){super(e,t),this.codec=r,this.decoderConfig=a,this.rotation=s,this.timeResolution=n,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new G,this.customDecoderQueueSize=0,this.inputTimestamps=[],this.sampleQueue=[],this.currentPacketIndex=0,this.raslSkipped=!1,this.alphaDecoder=null,this.alphaHadKeyframe=!1,this.colorQueue=[],this.alphaQueue=[],this.merger=null,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue=[],this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,this.finalSamples=[],this.mergeAlphaPromises=[];const o=Cn.find(e=>e.supports(r,a));if(o)this.customDecoder=new o,this.customDecoder.codec=r,this.customDecoder.config=a,this.customDecoder.onSample=e=>{if(!(e instanceof tn))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=e=>{if(this.alphaQueue.length>0){const t=this.alphaQueue.shift();i(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(te()){if("avc"===r&&this.decoderConfig.description){const e=je(c(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=Xe(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig={...this.decoderConfig,hardwareAcceleration:"prefer-software"}),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=Ge(t),this.decoderConfig={...this.decoderConfig,description:Ve(e)}))}}y(this.decoderConfig.colorSpace)||(this.decoderConfig={...this.decoderConfig,colorSpace:{primaries:this.decoderConfig.colorSpace?.primaries??"bt709",matrix:this.decoderConfig.colorSpace?.matrix??"bt709",transfer:this.decoderConfig.colorSpace?.transfer??"bt709",fullRange:this.decoderConfig.colorSpace?.fullRange??!1}})}const t=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(i(this.decoder),Math.max(this.decoder.decodeQueueSize,this.alphaDecoder?.decodeQueueSize??0))}decode(e){if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--);else{if(i(this.decoder),Y()||C(this.inputTimestamps,e.timestamp,e=>e),te()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const a of Oe(e.data,this.decoderConfig)){const r=Le(e.data[a.offset]);if(i||(i=r>=1&&r<=5),r===Re.AUD){if(i)break;t.length=0}r>=20&&r<=31||t.push(e.data.subarray(a.offset,a.offset+a.length))}if(!this.decoderConfig.description)for(let e=0;e{if(t.description){const i=3&c(t.description)[4];return We(e,i+1)}return qe(e)})(t,this.decoderConfig);e=new pi(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=lt(e.data,this.decoderConfig);t&&(e=new pi(t,e.type,e.timestamp,e.duration))}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}decodeAlphaData(e){if(!e.sideData.alpha)return void this.pushNullAlphaFrame();if(this.merger||(this.merger=new Ln),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();i(void 0!==t),this.mergeAlpha(t,e)}else this.alphaQueue.push(e);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){const e=this.colorQueue.shift();i(void 0!==e),this.mergeAlpha(e,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},t=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}const t=kt(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===t),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(t??e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(const t of Qe(e,this.decoderConfig)){const i=Ye(e[t.offset]);if(i===Ae.RASL_N||i===Ae.RASL_R)return!0}return!1}sampleHandler(e){if(Y()){if(this.sampleQueue.length>0&&e.timestamp>=a(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}C(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();i(void 0!==t),e.setTimestamp(t),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}async mergeAlpha(e,t){const r=B();this.mergeAlphaPromises.push(r.promise);const a={sample:null};this.finalSamples.push(a);try{if(t){i(this.merger);const r=await this.merger.merge(e,t);a.sample=new tn(r)}else a.sample=new tn(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(s){E(this.finalSamples,a),this.onError(s)}finally{E(this.mergeAlphaPromises,r.promise),r.resolve()}}async flush(){if(this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(i(this.decoder),await Promise.all([this.decoder.flush(),this.alphaDecoder?.flush()]),await Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>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),Y()){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(i(this.decoder),"closed"!==this.decoder.state&&this.decoder.close(),this.alphaDecoder&&"closed"!==this.alphaDecoder.state&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>e?.close()),this.alphaQueue.length=0,this.merger?.close());for(const e of this.sampleQueue)e.close();this.sampleQueue.length=0}}let On=null;class Ln{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!On){const e=new Blob([`(${zn.toString()})()`],{type:"application/javascript"});On=URL.createObjectURL(e)}const e=N(navigator.hardwareConcurrency,1,4);for(let t=0;t{const t=e.data,i=this.pendingRequests.get(t.id);i&&(this.pendingRequests.delete(t.id),"error"in t?i.reject(new Error(t.error)):i.resolve(t.frame))}),e.addEventListener("error",e=>{const t=new Error(e.message||"Color/alpha merge worker error.");for(const i of this.pendingRequests.values())i.reject(t);this.pendingRequests.clear()}),this.workers.push(e)}}const i=this.nextRequestId++,r=B();this.pendingRequests.set(i,r);const a=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,a.postMessage({id:i,color:e,alpha:t},{transfer:[e,t]}),r.promise}close(){for(const t of this.workers)t.terminate();this.workers.length=0;const e=new Error("Color/alpha merger closed.");for(const t of this.pendingRequests.values())t.reject(e);this.pendingRequests.clear()}}const zn=()=>{let e=null,t=null,i=Promise.resolve();self.addEventListener("message",e=>{const{id:t,color:a,alpha:s}=e.data;i=i.then(async()=>{try{const e=await r(a,s);self.postMessage({id:t,frame:e},{transfer:[e]})}catch(e){self.postMessage({id:t,error:e.message})}finally{a.close(),s.close()}})});const r=async(e,t)=>{const i=e.format,r=t.format;if(!i||!r)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");const o=i.includes("P10"),c=i.includes("P12"),l=r.includes("P10"),u=r.includes("P12");if(l!==o||u!==c)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${i}', alpha: '${r}').`);if("RGBX"===i||"RGBA"===i||"BGRX"===i||"BGRA"===i)return await a(e,t,i);if("I420"===i||"I420P10"===i||"I420P12"===i||"I422"===i||"I422P10"===i||"I422P12"===i||"I444"===i||"I444P10"===i||"I444P12"===i)return await s(e,t,i);if("NV12"===i)return await n(e,t);throw new Error(`CPU color/alpha merging does not support format '${i}'.`)},a=async(e,t,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=r*a,n=new Uint8Array(4*s);await e.copyTo(n);const c=await o(t,r,a,1);for(let o=0,u=3;o{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=i.includes("P10"),n=i.includes("P12"),c=s||n?2:1;let l,u;i.startsWith("I420")?(l=Math.ceil(r/2),u=Math.ceil(a/2)):i.startsWith("I422")?(l=Math.ceil(r/2),u=a):(l=r,u=a);const d=r*a,h=d*c,f=l*u*c,m=new Uint8Array(h+2*f+d*c);await e.copyTo(m);const p=await o(t,r,a,c),g=h+2*f;m.set(p,g);const k={format:i.slice(0,4)+"A"+i.slice(4),codedWidth:r,codedHeight:a,timestamp:e.timestamp,duration:e.duration??void 0,transfer:[m.buffer]};return new VideoFrame(m,k)},n=async(e,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=r*a,n=Math.ceil(r/2)*Math.ceil(a/2),c=e.allocationSize();t&&t.byteLength===c||(t=new Uint8Array(c)),await e.copyTo(t);const l=new Uint8Array(s+2*n+s);l.set(t.subarray(0,s),0);const u=s,d=s+n,h=s;for(let o=0;o{const s=t.allocationSize();e&&e.byteLength===s||(e=new Uint8Array(s)),await t.copyTo(e);const n=t.format;if("RGBA"===n||"BGRA"===n||"RGBX"===n||"BGRX"===n){const t="RGBA"===n||"RGBX"===n?0:2,a=i*r;for(let i=0;i{if(!e||"object"!==typeof e)throw new TypeError("decoderOptions must be an object.");if(void 0!==e.hardwareAcceleration&&!["no-preference","prefer-hardware","prefer-software"].includes(e.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(void 0!==e.optimizeForLatency&&"boolean"!==typeof e.optimizeForLatency)throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")};class qn extends Dn{constructor(e,t={}){if(!(e instanceof Qn))throw new TypeError("videoTrack must be an InputVideoTrack.");Un(t),super(),this._track=e,this._decoderOptions=t}async _createDecoder(e,t){if(!(await this._track.canDecode())){if("undefined"===typeof VideoDecoder)throw new Error(ie("VideoDecoder"));throw new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const r=await this._track.getCodec(),a=await this._track.getRotation();let s=await this._track.getDecoderConfig();const n=await this._track.getTimeResolution();return i(r&&s),s={...s,hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency},new Nn(e,t,r,s,a,n)}_createPacketSink(){return new Fn(this._track)}async getSample(e,t={}){_n(e);for await(const i of this.mediaSamplesAtTimestamps([e],t))return i;throw new Error("Internal error: Iterator returned nothing.")}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Wn{constructor(e,t={}){if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof Qn))throw new TypeError("videoTrack must be an InputVideoTrack.");if(t&&"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.alpha&&"boolean"!==typeof t.alpha)throw new TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==t.width&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(void 0!==t.height&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(void 0!==t.fit&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==t.width&&void 0!==t.height&&void 0===t.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==t.crop&&un(t.crop,"options."),void 0!==t.poolSize&&("number"!==typeof t.poolSize||!Number.isInteger(t.poolSize)||t.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");void 0!==t.decoderOptions&&Un(t.decoderOptions),this._videoTrack=e,this._alpha=t.alpha??!1,this._options=t,this._fit=t.fit??"fill",this._videoSampleSink=new qn(e,t.decoderOptions),this._canvasPool=Array.from({length:t.poolSize??0},()=>null)}_ensureInit(){return this._initPromise??(this._initPromise=(async()=>{const e=this._options,t=this._videoTrack,i=e.rotation??await t.getRotation(),r=await t.getSquarePixelWidth(),a=await t.getSquarePixelHeight(),[s,n]=i%180===0?[r,a]:[a,r];let o=e.crop;o&&(o=ln(o,s,n));let[c,l]=o?[o.width,o.height]:[s,n];const u=c/l;void 0!==e.width&&void 0===e.height?(c=e.width,l=Math.round(c/u)):void 0===e.width&&void 0!==e.height?(l=e.height,c=Math.round(l*u)):void 0!==e.width&&void 0!==e.height&&(c=e.width,l=e.height),this._width=c,this._height=l,this._rotation=i,this._crop=o})())}_videoSampleToWrappedCanvas(e){const t=this._width,r=this._height;let a=this._canvasPool[this._nextCanvasIndex],s=!1;a||("undefined"!==typeof document?(a=document.createElement("canvas"),a.width=t,a.height=r):a=new OffscreenCanvas(t,r),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=a),s=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);const n=a.getContext("2d",{alpha:this._alpha||Z()});i(n),e._drawWithFitAndMipmapping(a,n,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:s,fillBlack:!this._alpha&&Z()});const o={canvas:a,timestamp:e.timestamp,duration:e.duration};return e.close(),o}async getCanvas(e,t){_n(e),await this._ensureInit();const i=await this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)}async*canvases(e,t,i){await this._ensureInit(),yield*M(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e))}async*canvasesAtTimestamps(e,t){await this._ensureInit(),yield*M(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e))}}class Hn extends An{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new G,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const a=t=>{let i=t.timestamp;null!==this.expectedFirstTimestamp&&null===this.currentTimestamp&&(this.timestampOffset=this.expectedFirstTimestamp-i),i+=this.timestampOffset,(null===this.currentTimestamp||Math.abs(i-this.currentTimestamp)>=t.duration)&&(this.currentTimestamp=i);const a=this.currentTimestamp;if(this.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();const s=r.sampleRate;t.setTimestamp(Math.round(a*s)/s),e(t)},s=Bn.find(e=>e.supports(i,r));if(s)this.customDecoder=new s,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof wn))throw new TypeError("The argument passed to onSample must be an AudioSample.");a(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:e=>{try{a(new wn(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(i(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--)):(i(this.decoder),this.expectedFirstTimestamp??(this.expectedFirstTimestamp=e.timestamp),this.decoder.decode(e.toEncodedAudioChunk()))}async flush(){this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(i(this.decoder),await this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(i(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class Vn extends An{constructor(e,t,r){super(e,t),this.decoderConfig=r,this.currentTimestamp=null,i(Wt.includes(r.codec)),this.codec=r.codec;const{dataType:a,sampleSize:s,littleEndian:n}=ti(this.codec);switch(this.inputSampleSize=s,s){case 1:"unsigned"===a?this.readInputValue=(e,t)=>e.getUint8(t)-128:"signed"===a?this.readInputValue=(e,t)=>e.getInt8(t):"ulaw"===a?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=~e;128&r&&(r&=-129,t=-1),i=5+((240&r)>>4);const a=(1<(e=>{let t=0,i=0,r=85^e;128&r&&(r&=-129,t=-1),i=4+((240&r)>>4);let a=0;return a=4!==i?1<e.getUint16(t,n)-32768:"signed"===a?this.readInputValue=(e,t)=>e.getInt16(t,n):i(!1);break;case 3:"unsigned"===a?this.readInputValue=(e,t)=>A(e,t,n)-2**23:"signed"===a?this.readInputValue=(e,t)=>((e,t,i)=>A(e,t,i)<<8>>8)(e,t,n):i(!1);break;case 4:"unsigned"===a?this.readInputValue=(e,t)=>e.getUint32(t,n)-2**31:"signed"===a?this.readInputValue=(e,t)=>e.getInt32(t,n):"float"===a?this.readInputValue=(e,t)=>e.getFloat32(t,n):i(!1);break;case 8:"float"===a?this.readInputValue=(e,t)=>e.getFloat64(t,n):i(!1);break;default:F(s),i(!1)}switch(s){case 1:"ulaw"===a||"alaw"===a?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(e,t,i)=>e.setUint8(t,i+128));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i<<8,!0);break;case 4:this.outputSampleSize=4,"float"===a?(this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0)):(this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0);break;default:F(s),i(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=l(e.data),i=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,r=i*this.decoderConfig.numberOfChannels*this.outputSampleSize,a=new ArrayBuffer(r),s=new DataView(a);for(let l=0;l=n)&&(this.currentTimestamp=e.timestamp);const o=this.currentTimestamp;this.currentTimestamp+=n;const c=new wn({format:this.outputFormat,data:a,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:i,timestamp:o});this.onSample(c)}async flush(){}close(){}}class jn extends Dn{constructor(e){if(!(e instanceof Yn))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=e}async _createDecoder(e,t){if(!(await this._track.canDecode())){if("undefined"===typeof AudioDecoder)throw new Error(ie("AudioDecoder"));throw new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const r=await this._track.getCodec(),a=await this._track.getDecoderConfig();return i(r&&a),Wt.includes(a.codec)?new Vn(e,t,a):new Hn(e,t,r,a)}_createPacketSink(){return new Fn(this._track)}async getSample(e,t={}){_n(e);for await(const i of this.mediaSamplesAtTimestamps([e],t))return i;throw new Error("Internal error: Iterator returned nothing.")}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Kn{constructor(e){if(!(e instanceof Yn))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new jn(e)}_audioSampleToWrappedArrayBuffer(e){const t={buffer:e.toAudioBuffer(),timestamp:e.timestamp,duration:e.duration};return e.close(),t}async getBuffer(e,t){_n(e);const i=await this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)}buffers(e,t,i){return M(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return M(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class Xn{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof Qn}isAudioTrack(){return this instanceof Yn}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}async getInternalCodecId(){return this._backing.getInternalCodecId()}get internalCodecId(){return $n(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}async getLanguageCode(){return this._backing.getLanguageCode()}get languageCode(){return $n(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}async getName(){return this._backing.getName()}get name(){return $n(this._backing.getName(),"name","getName")}async getTimeResolution(){return this._backing.getTimeResolution()}get timeResolution(){return $n(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}async isRelativeToUnixEpoch(){return this._backing.isRelativeToUnixEpoch()}async getUnixTimeForTimestamp(e){return this._backing.getUnixTimeForTimestamp(e)}async hasUnixTimeMapping(){return null!==await this._backing.getUnixTimeForTimestamp(await this.getFirstTimestamp())}async getDisposition(){return this._backing.getDisposition()}get disposition(){return $n(this._backing.getDisposition(),"disposition","getDisposition")}async getBitrate(){return this._backing.getBitrate()}async getAverageBitrate(){return this._backing.getAverageBitrate()}async getFirstTimestamp(){const e=await this._backing.getFirstPacket({metadataOnly:!0});return e?.timestamp??0}async computeDuration(e){const t=await this._backing.getPacket(1/0,{metadataOnly:!0,...e});return U((t?.timestamp??0)+(t?.duration??0),await this.getTimeResolution())}async getDurationFromMetadata(e={}){return this._backing.getDurationFromMetadata(e)}async computePacketStats(e=1/0,t){const i=new Fn(this);let r=1/0,a=-1/0,s=0,n=0;for await(const o of i.packets(void 0,void 0,{metadataOnly:!0,...t})){if(s>=e&&o.timestamp>=a)break;r=Math.min(r,o.timestamp),a=Math.max(a,o.timestamp+o.duration),s++,n+=o.byteLength}return{packetCount:s,averagePacketRate:s?Number((s/(a-r)).toPrecision(16)):0,averageBitrate:s?Number((8*n/(a-r)).toPrecision(16)):0}}async isLive(){return null!==await this._backing.getLiveRefreshInterval()}async getLiveRefreshInterval(){return this._backing.getLiveRefreshInterval()}canBePairedWith(e){if(!(e instanceof Xn))throw new TypeError("other must be an InputTrack.");return this.input===e.input&&this!==e&&0n!==(this._backing.getPairingMask()&e._backing.getPairingMask())}async getPairableTracks(e){return this.input.getTracks(to({filter:e=>e.canBePairedWith(this)},e))}async getPairableVideoTracks(e){return this.input.getVideoTracks(to({filter:e=>e.canBePairedWith(this)},e))}async getPairableAudioTracks(e){return this.input.getAudioTracks(to({filter:e=>e.canBePairedWith(this)},e))}async getPrimaryPairableVideoTrack(e){return this.input.getPrimaryVideoTrack(to({filter:e=>e.canBePairedWith(this)},e))}async getPrimaryPairableAudioTrack(e){return this.input.getPrimaryAudioTrack(to({filter:e=>e.canBePairedWith(this)},e))}async hasPairableTrack(e){e&&(e=Gn(e));const t=await this.input.getTracks();for(const i of t)if(this.canBePairedWith(i)&&(!e||await e(i)))return!0;return!1}hasPairableVideoTrack(e){return e&&(e=Gn(e)),this.hasPairableTrack(async t=>t.isVideoTrack()&&(!e||await e(t)))}hasPairableAudioTrack(e){return e&&(e=Gn(e)),this.hasPairableTrack(async t=>t.isAudioTrack()&&(!e||await e(t)))}}const $n=(e,t,i)=>{if(ae(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},Gn=e=>{if(void 0!==e&&"function"!==typeof e)throw new TypeError("predicate, when provided, must be a function.");return e?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("predicate must return or resolve to a boolean value.");return e},r=e(t);return ae(r)?r.then(i):i(r)}:void 0};class Qn extends Xn{constructor(e,t){super(e,t),this._pixelAspectRatioCache=null,this._backing=t}get type(){return"video"}async getCodec(){return this._backing.getCodec()}get codec(){return $n(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await(this._backing.getHasOnlyKeyPackets?.())??"prores"===await this._backing.getCodec()}async getCodedWidth(){return this._backing.getCodedWidth()}get codedWidth(){return $n(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}async getCodedHeight(){return this._backing.getCodedHeight()}get codedHeight(){return $n(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}async getRotation(){return this._backing.getRotation()}get rotation(){return $n(this._backing.getRotation(),"rotation","getRotation")}async getSquarePixelWidth(){return this._backing.getSquarePixelWidth()}get squarePixelWidth(){return $n(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}async getSquarePixelHeight(){return this._backing.getSquarePixelHeight()}get squarePixelHeight(){return $n(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}async getPixelAspectRatio(){return this._pixelAspectRatioCache??(this._pixelAspectRatioCache=fe({num:await this.getSquarePixelWidth()*await this.getCodedHeight(),den:await this.getSquarePixelHeight()*await this.getCodedWidth()}))}get pixelAspectRatio(){return this._pixelAspectRatioCache??(this._pixelAspectRatioCache=fe({num:$n(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*$n(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:$n(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*$n(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")}))}async getDisplayWidth(){const e=await(this._backing.getMetadataDisplayWidth?.());if(null!=e)return e;return await this.getRotation()%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight()}get displayWidth(){const e=this._backing.getMetadataDisplayWidth?.();if(void 0!==e){const t=$n(e,"displayWidth","getDisplayWidth");if(null!==t)return t}const t=$n(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return $n(t,"displayWidth","getDisplayWidth")}async getDisplayHeight(){const e=await(this._backing.getMetadataDisplayHeight?.());if(null!=e)return e;return await this.getRotation()%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth()}get displayHeight(){const e=this._backing.getMetadataDisplayHeight?.();if(void 0!==e){const t=$n(e,"displayHeight","getDisplayHeight");if(null!==t)return t}const t=$n(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return $n(t,"displayHeight","getDisplayHeight")}async getColorSpace(){return this._backing.getColorSpace()}async hasHighDynamicRange(){const e=await this._backing.getColorSpace();return"bt2020"===e.primaries||"smpte432"===e.primaries||"pq"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix}async canBeTransparent(){return this._backing.canBeTransparent()}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const e=await(this._backing.getMetadataCodecParameterString?.());if(null!=e)return e;const t=await this._backing.getDecoderConfig();return t?.codec??null}async canDecode(){try{const e=await this._backing.getDecoderConfig();if(!e)return!1;const t=await this._backing.getCodec();if(i(null!==t),Cn.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(await VideoDecoder.isConfigSupported(e)).supported}catch(e){return be._error("Error during decodability check:",e),!1}}async determinePacketType(e){if(!(e instanceof pi))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const t=await this.getCodec();if(null===t)return null;const r=await this.getDecoderConfig();return i(r),kt(t,r,e.data)}async computeFrameRateMetrics(e={}){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.targetPacketCount&&(!le(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");const t=await this.getTimeResolution(),i=e.targetPacketCount??256,r=new Fn(this),a=[];let s=-1/0,n=0;for await(const I of r.packets(void 0,void 0,{metadataOnly:!0})){if(a.length>=i&&I.timestamp>=s)break;a.push(I.timestamp),s=Math.max(s,I.timestamp),n++}const o=new Float64Array(a.length);for(let I=0;Ie-t),b=k-1>>1,w=k>>1;let T=0,S=0,v=0;for(const I of y)if(v+=f.get(I),0===T&&v>b&&(T=I),v>w){S=I;break}const P=(d/T+d/S)/2;return{underlyingFrameRate:u,bestGuessFrameRate:null!==u?u:so(P),minFrameRate:d/p,maxFrameRate:d/m,averageFrameRate:d*k/g,medianFrameRate:P,frameRateIsConstant:null!==u&&1===m&&1===p,probedPacketCount:n}}}class Yn extends Xn{constructor(e,t){super(e,t),this._backing=t}get type(){return"audio"}async getCodec(){return this._backing.getCodec()}get codec(){return $n(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await(this._backing.getHasOnlyKeyPackets?.())??!0}async getNumberOfChannels(){return this._backing.getNumberOfChannels()}get numberOfChannels(){return $n(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}async getSampleRate(){return this._backing.getSampleRate()}get sampleRate(){return $n(this._backing.getSampleRate(),"sampleRate","getSampleRate")}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const e=await(this._backing.getMetadataCodecParameterString?.());if(null!=e)return e;const t=await this._backing.getDecoderConfig();return t?.codec??null}async canDecode(){try{const e=await this._backing.getDecoderConfig();if(!e)return!1;const t=await this._backing.getCodec();if(i(null!==t),Bn.some(i=>i.supports(t,e)))return!0;if(e.codec.startsWith("pcm-"))return!0;if("undefined"===typeof AudioDecoder)return!1;return!0===(await AudioDecoder.isConfigSupported(e)).supported}catch(e){return be._error("Error during decodability check:",e),!1}}async determinePacketType(e){if(!(e instanceof pi))throw new TypeError("packet must be an EncodedPacket.");return null===await this.getCodec()?null:"key"}}const Jn=e=>-(e??-1/0),Zn=e=>-e,eo=e=>{if("object"!==typeof e||!e)throw new TypeError("query must be an object.");if(void 0!==e.filter&&"function"!==typeof e.filter)throw new TypeError("query.filter, when provided, must be a function.");if(void 0!==e.sortBy&&"function"!==typeof e.sortBy)throw new TypeError("query.sortBy, when provided, must be a function.");return{filter:e.filter?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("query.filter must return or resolve to a boolean.");return e},r=e.filter(t);return ae(r)?r.then(i):i(r)}:void 0,sortBy:e.sortBy?t=>{const i=e=>{if("number"!==typeof e&&(!Array.isArray(e)||!e.every(e=>"number"===typeof e)))throw new TypeError("query.sortBy must return or resolve to a number or an array of numbers.");return e},r=e.sortBy(t);return ae(r)?r.then(i):i(r)}:void 0}},to=(e,t)=>({filter:e?.filter||t?.filter?i=>{const r=e?.filter?.(i)??!0,a=e=>!1!==e&&(t?.filter?.(i)??!0);return ae(r)?r.then(a):a(r)}:void 0,sortBy:e?.sortBy||t?.sortBy?i=>{const r=e?.sortBy?.(i)??[],a=t?.sortBy?.(i)??[],s=(e,t)=>[...Array.isArray(e)?e:[e],...Array.isArray(t)?t:[t]];return ae(r)||ae(a)?Promise.all([r,a]).then(([e,t])=>s(e,t)):s(r,a)}:void 0}),io=async(e,t)=>{let i=e;if(t?.filter){const r=e.map(e=>t.filter(e));if(r.some(e=>ae(e))){const t=await Promise.all(r);i=e.filter((e,i)=>t[i])}else i=e.filter((e,t)=>r[t])}if(!t?.sortBy)return i;const r=i.map(e=>t.sortBy(e)),a=r.some(e=>ae(e))?await Promise.all(r):r;return i.map((e,t)=>({track:e,sortValue:a[t]})).sort((e,t)=>{const i=Array.isArray(e.sortValue)?e.sortValue:[e.sortValue],r=Array.isArray(t.sortValue)?t.sortValue:[t.sortValue],a=Math.max(i.length,r.length);for(let s=0;se.track)},ro=(e,t)=>{const i=1e6,r=1+1e-9,a=[12,15,20,24e3/1001,24,25,3e4/1001,30,48,50,6e4/1001,60,100,12e4/1001,120,144,240];if(e.length<2)return null;const s=new Float64Array(e.length-1);for(let T=1;T0))return null;s[T-1]=t}const n=s.slice();n.sort();let o=n[Math.floor(.05*n.length)];for(let T=0;T<6;T++){let e=0,t=0;for(const a of s){const i=Math.max(1,Math.round(a/o));Math.abs(a-i*o)>=r||(e+=a,t+=i)}if(0===t)return null;const i=e/t;if(Math.abs(i-o)<=1e-12*Math.max(1,o)){o=i;break}o=i}let c=0,l=0,u=0;for(const T of s){const e=Math.max(1,Math.round(T/o));Math.abs(T-e*o)>=r||(c++,l+=T,u+=e)}if(c/s.length<.98)return null;o=l/u;const d=1/Math.min(u,1e3),h=Math.max(Number.EPSILON,o-d),f=o+d,m=t/f,p=t/h,g=t/o;let k=null,y=1/0;for(const T of a){if(Tp)continue;const e=Math.abs(T/g-1);e{for(let r=1;r<=i;r++){const i=Math.floor(e*r)+1;if(i/r{const t=[24/1.001,30/1.001,60/1.001,120/1.001],i=[12,15,20,24,25,30,48,50,60,100,120,144,240];for(const s of t)if(Math.abs(s/e-1)<=5e-4)return s;let r=e,a=1/0;for(const s of i){const t=Math.abs(s/e-1);t<=.025&&t!(e instanceof Ss)))throw new TypeError("options.formats must be an array of InputFormat.");if(!(e.source instanceof $a||e.source instanceof Ga))throw new TypeError("options.source must be a Source or SourceRef.");if(e.source instanceof $a&&e.source._disposed)throw new TypeError("options.source must not be a disposed Source.");if(void 0!==e.initInput&&!(e.initInput instanceof oo))throw new TypeError("options.initInput, when provided, must be an Input.");void 0!==e.formatOptions&&((e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(`${t}, when provided, must be an object.`);if(void 0!==e.isobmff){if(!e.isobmff||"object"!==typeof e.isobmff)throw new TypeError(`${t}.isobmff, when provided, must be an object.`);if(void 0!==e.isobmff.resolveKeyId&&"function"!==typeof e.isobmff.resolveKeyId)throw new TypeError(`${t}.isobmff.resolveKeyId, when provided, must be a function.`)}if(void 0!==e.hls){if(!e.hls||"object"!==typeof e.hls)throw new TypeError(`${t}.hls, when provided, must be an object.`);if(void 0!==e.hls.offsetTimestampsByDateTime&&"boolean"!==typeof e.hls.offsetTimestampsByDateTime)throw new TypeError(`${t}.hls.offsetTimestampsByDateTime, when provided, must be a boolean.`)}})(e.formatOptions,"formatOptions"),this._formats=e.formats,this._initInput=e.initInput??null,this._formatOptions=e.formatOptions??{},e.source instanceof $a?this._rootRef=e.source.ref():this._rootRef=e.source,this._sourceRefs.push(this._rootRef)}get _rootSource(){return this._rootRef.source}async _getSourceUncached(e){i(this._rootSource instanceof Qa);const t=await this._rootSource._resolveRequest(e);return this._emit("source",{source:t.source,request:e,isRoot:e.isRoot}),t}_getSourceCached(e,t=1){const r=this._sourceCache.find(i=>i.cacheGroup===t&&Ya(i.request,e));if(r)return r.age++,Promise.resolve(r.sourceRef.source.ref());const a=this._sourceCachePromises.find(i=>i.cacheGroup===t&&Ya(i.request,e));if(a)return a.promise.then(e=>e.sourceRef.source.ref());const s=(async()=>{const r=await this._getSourceUncached(e);if(de(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount)>=4){const e=he(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount?e.age:1/0);i(-1!==e);const r=this._sourceCache[e];this._sourceCache.splice(e,1),r.sourceRef.free(),E(this._sourceRefs,r.sourceRef)}this._sourceRefs.push(r);const a=this._sourceCachePromises.findIndex(t=>t.request===e);i(-1!==a),this._sourceCachePromises.splice(a,1);return{request:e,sourceRef:r,age:this._nextSourceCacheAge++,cacheGroup:t}})();return this._sourceCachePromises.push({request:e,cacheGroup:t,promise:s}),s.then(e=>{const t=e.sourceRef.source.ref();return this._sourceCache.push(e),t})}_getDemuxer(){return this._demuxerPromise??(this._demuxerPromise=(async()=>{this._reader=new uo(this._rootSource),this._emit("source",{source:this._rootSource,request:null,isRoot:!0});for(const e of this._formats){if(await e._canReadInput(this))return this._format=e,this._onFormatDetermined?.(e),e._createDemuxer(this)}throw new co})())}get source(){return this._rootSource}async getFormat(){return await this._getDemuxer(),i(this._format),this._format}async canRead(){try{return await this._getDemuxer(),!0}catch(e){if(e instanceof co)return!1;throw e}}async getFirstTimestamp(e){e??(e=await this.getTracks());const t=e.filter(e=>null!==e);if(0===t.length)return 0;const i=await Promise.all(t.map(e=>e._backing.getFirstPacket({metadataOnly:!0}))),r=Math.min(...i.map(e=>e?.timestamp??1/0));return r===1/0?0:r}async computeDuration(e,t){e??(e=await this.getTracks());const i=e.filter(e=>null!==e);if(0===i.length)return 0;const r=await Promise.all(i.map(e=>e.computeDuration(t)));return Math.max(...r)}async getDurationFromMetadata(e,t){e??(e=await this.getTracks());const i=e.filter(e=>null!==e),r=(await Promise.all(i.map(e=>e.getDurationFromMetadata(t)))).filter(e=>null!==e);return 0===r.length?null:Math.max(...r)}async getTracks(e){e&&(e=eo(e));const t=(await this._getTrackBackings()).map(e=>this._wrapBackingAsTrack(e));return io(t,e)}async getVideoTracks(e){e&&(e=eo(e));const t=(await this.getTracks()).filter(e=>e.isVideoTrack());return io(t,e)}async getAudioTracks(e){e&&(e=eo(e));const t=(await this.getTracks()).filter(e=>e.isAudioTrack());return io(t,e)}async getPrimaryVideoTrack(e){e&&(e=eo(e));const t=to(e,{sortBy:async e=>[Zn((await e.getDisposition()).default),Zn(await e.hasPairableAudioTrack()),Zn(!(await e.hasOnlyKeyPackets())),Jn(await e.getBitrate())]});return(await this.getVideoTracks(t))[0]??null}async getPrimaryAudioTrack(e){e&&(e=eo(e));const t=await this.getPrimaryVideoTrack(),i=to(e,{sortBy:async e=>[Zn(!t||e.canBePairedWith(t)),Zn((await e.getDisposition()).default),Jn(await e.getBitrate())]});return(await this.getAudioTracks(i))[0]??null}async _getTrackBackings(){const e=await this._getDemuxer();return this._trackBackingsCache??(this._trackBackingsCache=await e.getTrackBackings())}_wrapBackingAsTrack(e){const t=this._backingToTrack.get(e);if(t)return t;const i="video"===e.getType()?new Qn(this,e):new Yn(this,e);return this._backingToTrack.set(e,i),i}async getMimeType(){return(await this._getDemuxer()).getMimeType()}async getMetadataTags(){return(await this._getDemuxer()).getMetadataTags()}dispose(){if(!this._disposed){this._disposed=!0;for(const e of this._sourceRefs)e.free();this._sourceRefs.length=0,this._demuxerPromise&&this._demuxerPromise.then(e=>e.dispose()).catch(()=>{})}}[Symbol.dispose](){this.dispose()}}class co extends Error{constructor(e="Input has an unsupported or unrecognizable format."){super(e),this.name="UnsupportedInputFormatError"}}class lo extends Error{constructor(e="Input has been disposed."){super(e),this.name="InputDisposedError"}}class uo{constructor(e){this.source=e}get fileSize(){const e=this.source._getFileSize();if(void 0===e)throw new Error("Reading file size too early; read required first.");return e}get fileSizeNonStrict(){return this.source._getFileSize()??null}requestSlice(e,t){if(this.source._disposed)throw new lo;if(e<0)return null;if(null!==this.fileSizeNonStrict&&e+t>this.fileSizeNonStrict)return null;if(0===t){const t=new Uint8Array(0);return new ho(t,l(t),0,e,e)}const i=e+t,r=this.source._read(e,i,0,Xa);return ae(r)?r.then(t=>t?new ho(t.bytes,t.view,t.offset,e,i):null):r?new ho(r.bytes,r.view,r.offset,e,i):null}requestSliceRange(e,t,r){if(this.source._disposed)throw new lo;if(e<0)return null;if(null!==this.fileSizeNonStrict)return this.requestSlice(e,N(this.fileSizeNonStrict-e,t,r));{const a=this.requestSlice(e,r),s=a=>a||(i(null!==this.fileSizeNonStrict),this.requestSlice(e,N(this.fileSizeNonStrict-e,t,r)));return ae(a)?a.then(s):s(a)}}requestEntireFile(){if(null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);return(async()=>{const e=[];let t=0;for(;;){if(1===e.length&&null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);let i=this.requestSliceRange(t,0,1024);if(ae(i)&&(i=await i),!i||0===i.length)break;const r=mo(i,i.length);e.push(r),t+=i.length}const i=new Uint8Array(t);let r=0;for(const a of e)i.set(a,r),r+=a.length;return new ho(i,l(i),0,0,t)})()}}class ho{constructor(e,t,i,r,a){this.bytes=e,this.view=t,this.offset=i,this.start=r,this.end=a,this.bufferPos=r-i}static tempFromBytes(e){return new ho(e,l(e),0,0,e.length)}get length(){return this.end-this.start}get filePos(){return this.offset+this.bufferPos}set filePos(e){this.bufferPos=e-this.offset}get remainingLength(){return Math.max(this.end-this.filePos,0)}skip(e){this.bufferPos+=e}slice(e,t=this.end-e){if(ethis.end)throw new RangeError("Slicing outside of original slice.");return new ho(this.bytes,this.view,this.offset,e,e+t)}}const fo=(e,t)=>{if(e.filePose.end)throw new RangeError(`Tried reading [${e.filePos}, ${e.filePos+t}), but slice is [${e.start}, ${e.end}). This is likely an internal error, please report it alongside the file that caused it.`)},mo=(e,t)=>{fo(e,t);const i=e.bytes.subarray(e.bufferPos,e.bufferPos+t);return e.bufferPos+=t,i},po=e=>(fo(e,1),e.view.getUint8(e.bufferPos++)),go=(e,t)=>{fo(e,2);const i=e.view.getUint16(e.bufferPos,t);return e.bufferPos+=2,i},ko=e=>{fo(e,2);const t=e.view.getUint16(e.bufferPos,!1);return e.bufferPos+=2,t},yo=e=>{fo(e,3);const t=A(e.view,e.bufferPos,!1);return e.bufferPos+=3,t},bo=e=>{fo(e,2);const t=e.view.getInt16(e.bufferPos,!1);return e.bufferPos+=2,t},wo=(e,t)=>{fo(e,4);const i=e.view.getUint32(e.bufferPos,t);return e.bufferPos+=4,i},To=e=>{fo(e,4);const t=e.view.getUint32(e.bufferPos,!1);return e.bufferPos+=4,t},So=e=>{fo(e,4);const t=e.view.getUint32(e.bufferPos,!0);return e.bufferPos+=4,t},vo=e=>{fo(e,4);const t=e.view.getInt32(e.bufferPos,!1);return e.bufferPos+=4,t},Po=(e,t)=>{let i,r;return t?(i=wo(e,!0),r=wo(e,!0)):(r=wo(e,!1),i=wo(e,!1)),4294967296*r+i},Io=e=>4294967296*To(e)+To(e),xo=e=>4294967296*vo(e)+To(e),Co=e=>{const t=So(e),i=(e=>{fo(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},Bo=e=>{fo(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},Eo=e=>{fo(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},_o=(e,t)=>{fo(e,t);let i="";for(let r=0;ru.decode(mo(e,t)).split("\n").map(e=>e.trim()).filter(e=>e.length>0&&!i?.ignore?.(e));var Fo,Ao,Do,Mo;(Ao=Fo||(Fo={}))[Ao.Unsynchronisation=128]="Unsynchronisation",Ao[Ao.ExtendedHeader=64]="ExtendedHeader",Ao[Ao.ExperimentalIndicator=32]="ExperimentalIndicator",Ao[Ao.Footer=16]="Footer",(Mo=Do||(Do={}))[Mo.ISO_8859_1=0]="ISO_8859_1",Mo[Mo.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",Mo[Mo.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",Mo[Mo.UTF_8=3]="UTF_8";const No=128,Oo=10,Lo=["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"],zo=(e,t)=>{var i;const r=e.filePos;t.raw??(t.raw={}),(i=t.raw).TAG??(i.TAG=mo(e,No-3)),e.filePos=r;const a=Uo(e,30);a&&(t.title??(t.title=a));const s=Uo(e,30);s&&(t.artist??(t.artist=s));const n=Uo(e,30);n&&(t.album??(t.album=n));const o=Uo(e,4),c=Number.parseInt(o,10);Number.isInteger(c)&&c>0&&(t.date??(t.date=new Date(String(c))));const l=mo(e,30);let u;if(0===l[28]&&0!==l[29]){const i=l[29];i>0&&(t.trackNumber??(t.trackNumber=i)),e.skip(-30),u=Uo(e,28),e.skip(2)}else e.skip(-30),u=Uo(e,30);u&&(t.comment??(t.comment=u));const d=po(e);d{const i=mo(e,t),r=se(i.indexOf(0),i.length),a=i.subarray(0,r);let s="";for(let n=0;n{const t=e.filePos,i=_o(e,3),r=po(e),a=po(e),s=po(e),n=To(e);if("ID3"!==i||255===r||255===a||0!==(2155905152&n))return e.filePos=t,null;let o=li(n);return s&Fo.Footer&&(o+=Oo),{majorVersion:r,revision:a,flags:s,size:o}},Wo=(e,t,i)=>{var r,a,s,n,o;if(![2,3,4].includes(t.majorVersion))return void be._warn(`Unsupported ID3v2 major version: ${t.majorVersion}`);const c=t.flags&Fo.Footer?t.size-Oo:t.size,l=mo(e,c),u=new Ho(t,l);if(t.flags&Fo.Unsynchronisation&&3===t.majorVersion&&u.ununsynchronizeAll(),t.flags&Fo.ExtendedHeader){const e=u.readU32();3===t.majorVersion?u.pos+=e:u.pos+=e-4}for(;u.pos<=u.bytes.length-u.frameHeaderSize();){const e=u.readId3V2Frame();if(!e)break;const c=u.pos,l=u.pos+e.size;let d=!1,h=!1,f=!1;if(3===t.majorVersion?(d=!!(64&e.flags),h=!!(128&e.flags)):4===t.majorVersion&&(d=!!(4&e.flags),h=!!(8&e.flags),f=!!(2&e.flags)||!!(t.flags&Fo.Unsynchronisation)),d)be._warn(`Skipping encrypted ID3v2 frame ${e.id}`),u.pos=l;else if(h)be._warn(`Skipping compressed ID3v2 frame ${e.id}`),u.pos=l;else{if(f&&u.ununsynchronizeRegion(u.pos,l),i.raw??(i.raw={}),"TXXX"===e.id){const e=(r=i.raw).TXXX??(r.TXXX={}),t=u.readId3V2TextEncoding(),a=u.readId3V2Text(t,l),s=u.readId3V2Text(t,l);e[a]??(e[a]=s)}else"T"===e.id[0]?(a=i.raw)[s=e.id]??(a[s]=u.readId3V2EncodingAndText(l)):(n=i.raw)[o=e.id]??(n[o]=u.readBytes(e.size));switch(u.pos=c,e.id){case"TIT2":case"TT2":i.title??(i.title=u.readId3V2EncodingAndText(l));break;case"TIT3":case"TT3":i.description??(i.description=u.readId3V2EncodingAndText(l));break;case"TPE1":case"TP1":i.artist??(i.artist=u.readId3V2EncodingAndText(l));break;case"TALB":case"TAL":i.album??(i.album=u.readId3V2EncodingAndText(l));break;case"TPE2":case"TP2":i.albumArtist??(i.albumArtist=u.readId3V2EncodingAndText(l));break;case"TRCK":case"TRK":{const e=u.readId3V2EncodingAndText(l).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(i.trackNumber??(i.trackNumber=t)),r&&Number.isInteger(r)&&r>0&&(i.tracksTotal??(i.tracksTotal=r))}break;case"TPOS":case"TPA":{const e=u.readId3V2EncodingAndText(l).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(i.discNumber??(i.discNumber=t)),r&&Number.isInteger(r)&&r>0&&(i.discsTotal??(i.discsTotal=r))}break;case"TCON":case"TCO":{const e=u.readId3V2EncodingAndText(l);let t=/^\((\d+)\)/.exec(e);if(t){const e=Number.parseInt(t[1]);if(void 0!==Lo[e]){i.genre??(i.genre=Lo[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==Lo[e]){i.genre??(i.genre=Lo[e]);break}}i.genre??(i.genre=e)}break;case"TDRC":case"TDAT":{const e=u.readId3V2EncodingAndText(l),t=new Date(e);Number.isNaN(t.getTime())||(i.date??(i.date=t))}break;case"TYER":case"TYE":{const e=u.readId3V2EncodingAndText(l),t=Number.parseInt(e,10);Number.isInteger(t)&&(i.date??(i.date=new Date(String(t))))}break;case"USLT":case"ULT":{const e=u.readU8();u.pos+=3,u.readId3V2Text(e,l),i.lyrics??(i.lyrics=u.readId3V2Text(e,l))}break;case"COMM":case"COM":{const e=u.readU8();u.pos+=3,u.readId3V2Text(e,l),i.comment??(i.comment=u.readId3V2Text(e,l))}break;case"APIC":case"PIC":{const e=u.readId3V2TextEncoding();let r;if(2===t.majorVersion){const e=u.readAscii(3);r="PNG"===e?"image/png":"JPG"===e?"image/jpeg":"image/*"}else r=u.readId3V2Text(e,l);const a=u.readU8(),s=u.readId3V2Text(e,l).trimEnd(),n=l-u.pos;if(n>=0){const e=u.readBytes(n);i.images||(i.images=[]),i.images.push({data:e,mimeType:r,kind:3===a?"coverFront":4===a?"coverBack":"unknown",description:s})}}break;default:u.pos+=e.size}u.pos=l}}};class Ho{constructor(e,t){this.header=e,this.bytes=t,this.pos=0,this.view=new DataView(t.buffer,t.byteOffset,t.byteLength)}frameHeaderSize(){return 2===this.header.majorVersion?6:10}ununsynchronizeAll(){const e=[];for(let t=0;t{const t=this.pos+e;if(t>this.bytes.length)return!1;if(t<=this.bytes.length-this.frameHeaderSize()){this.pos+=e;const t=this.readAscii(4);if("\0\0\0\0"!==t&&!/[0-9A-Z]{4}/.test(t))return!1}return!0};if(!s(i)){const e=4===this.header.majorVersion?t:li(t);s(e)&&(i=e)}return this.pos=a,{id:e,size:i,flags:r}}}readId3V2TextEncoding(){const e=this.readU8();if(e>3)throw new Error(`Unsupported text encoding: ${e}`);return e}readId3V2Text(e,t){const i=this.pos,r=this.readBytes(t-this.pos);switch(e){case Do.ISO_8859_1:{let e="";for(let t=0;t0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}if(254===r[0]&&255===r[1]){const e=new TextDecoder("utf-16be"),t=se(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}{const e=se(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),u.decode(r.subarray(0,e))}case Do.UTF_16_BE_NO_BOM:{const e=new TextDecoder("utf-16be"),t=se(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(0,t))}case Do.UTF_8:{const e=se(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),u.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class Vo{constructor(e){this.events=e,this.input=null,this.audioSink=null,this.audioIterator=null,this.audioContext=null,this.gainNode=null,this.audioContextStartTime=0,this.playbackTimeAtStart=0,this.latestScheduledEndTime=0,this.duration=Number.NaN,this.paused=!0,this.volume=.7,this.muted=!1,this.playbackRate=1,this.asyncId=0,this.queuedNodes=new Set}get currentTime(){return this.paused?this.playbackTimeAtStart:(this.audioContext.currentTime-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart}ensureAudioContext(e){if(this.audioContext)return;const t=window.AudioContext||window.webkitAudioContext;try{this.audioContext=new t({sampleRate:e})}catch{this.audioContext=new t}this.gainNode=this.audioContext.createGain(),this.gainNode.connect(this.audioContext.destination),this.updateGain()}updateGain(){if(!this.gainNode)return;const e=this.muted?0:this.volume;this.gainNode.gain.value=e*e}stopQueuedNodes(){this.queuedNodes.forEach(e=>e.stop()),this.queuedNodes.clear()}async stopIterator(){await(this.audioIterator?.return()),this.audioIterator=null}handleNoAudioTrack(){this.audioSink=null,this.ensureAudioContext()}async load(e,t){++this.asyncId,await this.stopIterator(),this.stopQueuedNodes(),this.paused=!0,this.playbackTimeAtStart=0,this.audioContextStartTime=0;const{input:i,audioTrack:r,duration:a}=e;return this.input=i,this.duration=a,r?null!==r.codec&&await r.canDecode()?(this.ensureAudioContext(r.sampleRate),this.audioSink=new Kn(r),void t?.()):(this.audioSink=null,this.ensureAudioContext(),void t?.()):(this.handleNoAudioTrack(),void t?.())}async runIterator(e){if(!this.audioSink)return;await this.stopIterator(),this.audioIterator=this.audioSink.buffers(this.currentTime);for(;;){if(e!==this.asyncId||this.paused)return;const i=[];let r=!1;try{for(let e=0;e<16;e++){const e=await this.audioIterator.next();if(e.done){r=!0;break}i.push(e.value)}}catch(t){console.error("Audio iterator error:",t),r=!0}if(e!==this.asyncId||this.paused)return;i.length>0&&"suspended"===this.audioContext.state&&(await this.audioContext.resume(),this.events.emit("canplay"),this.events.emit("playing"));for(const{buffer:e,timestamp:t}of i){const i=this.audioContext.createBufferSource();i.buffer=e,i.connect(this.gainNode),i.playbackRate.value=this.playbackRate;const r=this.audioContextStartTime+(t-this.playbackTimeAtStart)/this.playbackRate,a=(r+e.duration/this.playbackRate-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart;a>this.latestScheduledEndTime&&(this.latestScheduledEndTime=a),r>=this.audioContext.currentTime?i.start(r):i.start(this.audioContext.currentTime,(this.audioContext.currentTime-r)*this.playbackRate),this.queuedNodes.add(i),i.onended=()=>this.queuedNodes.delete(i)}if(r)break;await new Promise(e=>setTimeout(e,0));const a=1;for(;this.latestScheduledEndTime-this.currentTime>a;){if(e!==this.asyncId||this.paused)return;await new Promise(e=>setTimeout(e,50))}}}async play(){if(!this.paused)return;this.audioContext||this.ensureAudioContext(),"suspended"===this.audioContext.state&&await this.audioContext.resume(),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart,this.paused=!1;const e=++this.asyncId;this.runIterator(e)}pause(){this.paused||(this.playbackTimeAtStart=this.currentTime,this.paused=!0,this.stopIterator(),this.stopQueuedNodes())}async seek(e){this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart;const t=++this.asyncId;this.paused||this.runIterator(t)}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){if(e!==this.playbackRate&&(this.paused||(this.playbackTimeAtStart=this.currentTime,this.audioContextStartTime=this.audioContext.currentTime),this.playbackRate=e,!this.paused)){const e=++this.asyncId;this.runIterator(e)}}destroy(){this.asyncId++,this.pause(),this.audioContext?.close(),this.audioContext=null,this.input=null,this.audioSink=null}}async function jo(e){return await e.getAverageBitrate()??await e.getBitrate()??0}const Ko=/\.m3u8(?:$|[?#])/i;function Xo(e){return"string"===typeof e&&Ko.test(e)}function $o(e){const t=function(e){return"string"===typeof e?new rs(e):e instanceof Blob?new es(e):"undefined"!==typeof ReadableStream&&e instanceof ReadableStream?new ns(e):e??null}(e);return t?new oo({source:t,formats:Xo(e)?Xs:Ks}):null}class Go{constructor(){this.active=!0,this.input=null,this.timers=new Set,this.controller="undefined"===typeof AbortController?void 0:new AbortController,this.cancellation=new Promise(e=>{this.resolveCancellation=e})}get signal(){return this.controller?.signal}own(e){this.active?this.input=e:e.dispose()}defer(e){if(!this.active)return;const t=setTimeout(()=>{this.timers.delete(t),this.active&&e()},0);this.timers.add(t)}async wait(e,t){try{await Promise.race([e,this.cancellation,t>0?this.timeout(t):new Promise(()=>{})])}finally{void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0)}}timeout(e){return new Promise((t,i)=>{this.deadline=setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){const e=this.input;this.input=null,e?.dispose()}cancel(){if(this.active){this.active=!1;for(const e of this.timers)clearTimeout(e);this.timers.clear(),void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0),this.resolveCancellation(),this.controller?.abort(),this.disposeInput()}}}async function Qo({input:e,videoTrack:t,audioTrack:i}){const r=[t,i].filter(e=>null!==e),a=t||i,s=Boolean(a&&await a.isLive());let n=Number.NaN;return r.length>0&&(n=await e.getDurationFromMetadata(r,{skipLiveWait:!0}),null!==n||s||(n=await e.computeDuration(r,{skipLiveWait:!0}))),s?Number.POSITIVE_INFINITY:n??Number.NaN}class Yo{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:a=.12,dropLateFrames:s=!1,poster:n="",preflightRange:o=!1}){this.canvas=e,this.ctx=t,this.events=i,this.timeupdateInterval=r,this.avSyncTolerance=a,this.dropLateFrames=s,this.poster=n,this.preflightRange=o,this.input=null,this.videoSink=null,this.videoIterator=null,this.nextFrame=null,this.rafId=0,this.asyncId=0,this.width=0,this.height=0,this.duration=Number.NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1}async preflight(e,t,i){return async function(e,t,i,r,a=()=>!0){if(r?.aborted||!a())return!1;if(!t||"string"!==typeof e||Xo(e))return!0;try{const t=await fetch(e,r?{method:"HEAD",signal:r}:{method:"HEAD"});if(r?.aborted||!a())return!1;const s=t.headers.get("accept-ranges");return!(!s||"none"===s)||(i.emit("error",new Event("RangeNotSupported")),!1)}catch(s){return!(r?.aborted||!a())&&(console.warn("Preflight check failed:",s),!0)}}(e,this.preflightRange,this.events,t,i)}drawPoster(){if(!this.poster||this.posterDrawn)return;const e=new Image;e.onload=()=>{this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,this.ctx.drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e.src=this.poster}async stopIterator(){await(this.videoIterator?.return()),this.videoIterator=null}clear(){this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height)}async load(e,t){++this.asyncId,await this.stopIterator(),this.clear(),this.posterDrawn=!1;const{input:i,videoTrack:r,duration:a}=e;if(this.input=i,this.duration=a,!r)return this.handleNoVideoTrack(),void t?.();if(null===r.codec||!(await r.canDecode()))return this.handleNoVideoTrack(),void t?.();const s=await r.canBeTransparent();this.videoSink=new Wn(r,{poolSize:2,fit:"contain",alpha:s}),this.width=r.displayWidth,this.height=r.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,t?.(),await this.resetIterator(0)}handleNoVideoTrack(){this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster()}async resetIterator(e){if(await this.stopIterator(),!this.videoSink)return;this.videoIterator=this.videoSink.canvases(e);const t=(await this.videoIterator.next()).value??null,i=(await this.videoIterator.next()).value??null;this.nextFrame=i,t?this.ctx.drawImage(t.canvas,0,0):this.drawPoster()}async updateNextFrame(e){if(this.videoIterator&&!this.isFetching){this.isFetching=!0;try{for(;;){const t=(await this.videoIterator.next()).value??null;if(!t||e!==this.asyncId)return;const i=this.audioClock.currentTime,r=this.dropLateFrames?Math.max(.06,this.avSyncTolerance/Math.max(1,this.playbackRate)):0;if(!(this.dropLateFrames&&t.timestampi)return void(this.nextFrame=null)}}}finally{this.isFetching=!1}}}render(){if(!this.audioClock)return;const e=this.audioClock.currentTime,t=Date.now();if(t-this.lastTimeUpdate>=this.timeupdateInterval&&(this.events.emit("timeupdate"),this.lastTimeUpdate=t),Number.isFinite(this.duration)&&e>=this.duration)return this.stop(),this.stalled=!1,this.events.emit("ended"),this.events.emit("pause"),void this.events.emit("canplay");this.nextFrame&&this.nextFrame.timestamp<=e?(this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.ctx.drawImage(this.nextFrame.canvas,0,0),this.nextFrame=null,this.updateNextFrame(this.asyncId),this.stalled&&(this.events.emit("canplay"),this.events.emit("playing"),this.stalled=!1)):this.nextFrame||(this.updateNextFrame(this.asyncId),!this.nextFrame&&Number.isFinite(this.duration)&&ethis.render())}start(e){this.audioClock=e,this.asyncId++,this.stalled=!1,this.updateNextFrame(this.asyncId),this.rafId=requestAnimationFrame(()=>this.render())}stop(){cancelAnimationFrame(this.rafId)}async seek(e){this.asyncId++,await this.resetIterator(e)}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){this.asyncId++,this.stop(),this.stopIterator(),this.posterDrawn=!1,this.videoSink=null,this.input=null}}class Jo{constructor({canvas:e,ctx:t,events:i,option:r={}}){this.events=i,this.option=r,this.audio=new Vo(i),this.video=new Yo({canvas:e,ctx:t,events:i,timeupdateInterval:r.timeupdateInterval??250,avSyncTolerance:r.avSyncTolerance??.12,dropLateFrames:r.dropLateFrames??!1,poster:r.poster??"",preflightRange:r.preflightRange??!1}),this.paused=!0,this.ended=!1,this.readyState=0,this.networkState=0,this.error=null,this.seeking=!1,this.loadSeq=0,this.input=null,this.media=null,this.loadSession=null,this.destroyed=!1,i.addEventListener?.("ended",()=>{this.ended=!0,this.paused=!0})}async load(e){if(this.destroyed)return;const t=++this.loadSeq;if(this.loadSession?.cancel(),t!==this.loadSeq||this.destroyed)return;if(this.pause(),t!==this.loadSeq||this.destroyed)return;this.disposeInput();const i=new Go;this.loadSession=i,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,i.defer(()=>this.events.emit("waiting")),i.defer(()=>this.events.emit("loadstart"));const r=Number.isFinite(this.option.loadTimeout)?this.option.loadTimeout:0;try{await i.wait(this.performLoad(e,t,i),r)}catch(a){if(t!==this.loadSeq)return;const e=++this.loadSeq;if(i.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.error={code:4,message:a.message},this.networkState=3,this.events.emit("error")}}async performLoad(e,t,i=this.loadSession){if(!(await this.video.preflight(e,i?.signal,()=>t===this.loadSeq))||t!==this.loadSeq)return;const r=$o(e);if(!r)return this.video.handleNoVideoTrack(),void this.audio.handleNoAudioTrack();i.own(r);const a=await async function(e,t){const i=await e.getPrimaryVideoTrack(),r=i?await i.getPrimaryPairableAudioTrack():await e.getPrimaryAudioTrack(),a=await Qo({input:e,videoTrack:i,audioTrack:r}),s=i||r,n=Xo(t);return{input:e,videoTrack:i,audioTrack:r,duration:a,isLive:!Number.isFinite(a)&&Boolean(s&&await s.isLive()),isHls:n,videoMode:n?"auto":"manual",audioMode:n?"auto":"manual"}}(r,e);if(t!==this.loadSeq)return;this.input=r,this.media=a;let s=!a.videoTrack,n=!a.audioTrack;const o=()=>{s&&n&&(this.readyState=1,this.events.emit("loadedmetadata"),this.events.emit("durationchange"),this.events.emit("progress"))};try{if(await Promise.all([this.video.load(a,()=>{t===this.loadSeq&&(s=!0,o())}),this.audio.load(a,()=>{t===this.loadSeq&&(n=!0,o())})]),t!==this.loadSeq)return;this.readyState=4,this.networkState=1,this.events.emit("loadeddata"),this.events.emit("canplay"),this.events.emit("canplaythrough"),this.events.emit("progress")}catch(c){if(t!==this.loadSeq)return;throw console.error("MediaBunny load error:",c),c}}createTimeout(e){return new Promise((t,i)=>{setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){this.loadSession?.disposeInput(),this.input=null,this.media=null}async replaceTracks({videoTrack:e,audioTrack:t,videoMode:i,audioMode:r}){if(!this.media)return;const a={...this.media,videoTrack:e,audioTrack:t,videoMode:i,audioMode:r},s=!this.paused,n=this.currentTime;this.pause(),this.ended=!1,this.seeking=!0,this.events.emit("seeking"),this.events.emit("waiting"),a.duration=await Qo(a),this.media=a,await Promise.all([this.video.load(a),this.audio.load(a)]),await Promise.all([this.video.seek(n),this.audio.seek(n)]),this.readyState=4,this.networkState=1,this.seeking=!1,this.events.emit("loadedmetadata"),this.events.emit("durationchange"),this.events.emit("progress"),this.events.emit("loadeddata"),this.events.emit("canplay"),this.events.emit("canplaythrough"),this.events.emit("seeked"),s&&await this.play()}async selectHlsQuality(e){if(!this.media?.isHls||!this.input)return;const t=await this.input.getVideoTracks(),i="auto"===e?await this.input.getPrimaryVideoTrack():t.find(t=>t.id===e)??this.media.videoTrack;if(!i)return;let r=this.media.audioTrack,a=this.media.audioMode;r&&i.canBePairedWith(r)||(r=await i.getPrimaryPairableAudioTrack(),a="auto"),await this.replaceTracks({videoTrack:i,audioTrack:r,videoMode:"auto"===e?"auto":"manual",audioMode:a})}async selectHlsAudio(e){if(!this.media?.isHls||!this.input)return;const t=await this.input.getAudioTracks(),i="auto"===e?this.media.videoTrack?await this.media.videoTrack.getPrimaryPairableAudioTrack():await this.input.getPrimaryAudioTrack():t.find(t=>t.id===e)??this.media.audioTrack;if(!i)return;let r=this.media.videoTrack,a=this.media.videoMode;r&&i.canBePairedWith(r)||(r=await i.getPrimaryPairableVideoTrack(),a="auto"),await this.replaceTracks({videoTrack:r,audioTrack:i,videoMode:a,audioMode:"auto"===e?"auto":"manual"})}getHlsState(){return async function(e){if(!e?.isHls||!e.input)return null;const[t,i]=await Promise.all([e.input.getVideoTracks(),e.videoTrack?e.videoTrack.getPairableAudioTracks():[]]),[r,a]=await Promise.all([Promise.all(t.map(async(e,t)=>({id:e.id,track:e,index:t,name:await e.getName(),height:await e.getDisplayHeight(),bitrate:await jo(e)}))),Promise.all(i.map(async(e,t)=>{const i=await e.getName(),r=await e.getLanguageCode();return{id:e.id,track:e,index:t,name:i,lang:r,language:r,bitrate:await jo(e)}}))]);return{levels:r,audios:a,currentLevel:e.videoTrack?r.find(t=>t.id===e.videoTrack?.id)??null:null,currentAudio:e.audioTrack?a.find(t=>t.id===e.audioTrack?.id)??null:null,videoMode:e.videoMode??"auto",audioMode:e.audioMode??"auto"}}(this.media)}async play(){this.paused&&(this.ended&&(this.ended=!1,await this.seek(0)),this.paused=!1,await this.audio.play(),this.video.start(this.audio),this.events.emit("play"),this.events.emit("playing"))}pause(){this.paused||(this.paused=!0,this.audio.pause(),this.video.stop(),this.events.emit("pause"))}async seek(e){const t=!this.paused;this.ended=!1,this.seeking=!0,this.events.emit("seeking"),this.events.emit("waiting"),this.pause(),await Promise.all([this.audio.seek(e),this.video.seek(e)]),this.seeking=!1,this.events.emit("seeked"),t&&!this.ended&&await this.play()}setVolume(e,t){this.audio.setVolume(e,t)}setPlaybackRate(e){this.audio.setPlaybackRate(e),this.video.setPlaybackRate(e)}destroy(){this.destroyed||(this.destroyed=!0,this.loadSeq++,this.loadSession?.cancel(),this.pause(),this.disposeInput(),this.audio.destroy(),this.video.destroy())}get currentTime(){return this.audio.currentTime}get duration(){return this.media?.duration??this.audio.duration??this.video.duration}get videoWidth(){return this.video.width}get videoHeight(){return this.video.height}}class Zo{constructor({art:e,canvas:i,ctx:r,option:a}){this.art=e,this.canvas=i,this.option=a,this.events=new t,this.engine=new Jo({canvas:i,ctx:r,events:this.events,option:a}),this._src=null,this._volume=a.volume??.7,this._muted=!!a.muted,this._playbackRate=1,this.engine.setVolume(this._volume,this._muted),this.setupEventForwarding(),a.source?this.src=a.source:e.option?.url&&(this.src=e.option.url)}setupEventForwarding(){const{events:e}=this.art.constructor.config;e.forEach(e=>{this.events.addEventListener(e,e=>{this.art.emit(`video:${e.type}`,e)})})}addEventListener(e,t){this.events.addEventListener(e,t)}removeEventListener(e,t){this.events.removeEventListener(e,t)}get src(){return this._src}set src(e){this._src=e,e&&this.engine.load(e)}get currentSrc(){return this._src}get currentTime(){return this.engine.currentTime}set currentTime(e){this.engine.seek(Number(e)||0)}get duration(){return this.engine.duration}get buffered(){return this.createTimeRanges(0,this.engine.duration)}get played(){return this.createTimeRanges(0,this.engine.currentTime)}get seekable(){return this.createTimeRanges(0,this.engine.duration)}createTimeRanges(e,t){const i=this.engine.duration;return!i||Number.isNaN(i)||t<=0?{length:0,start:()=>0,end:()=>0}:{length:1,start:()=>e,end:()=>t}}get paused(){return this.engine.paused}get playing(){return!this.engine.paused&&!this.engine.ended}get ended(){return this.engine.ended}get seeking(){return this.engine.seeking}get readyState(){return this.engine.readyState}get networkState(){return this.engine.networkState}get error(){return this.engine.error}get playbackRate(){return this._playbackRate}set playbackRate(e){const t=Number(e);Number.isNaN(t)||t<=0||(this._playbackRate=t,this.engine.setPlaybackRate(t),this.events.emit("ratechange"))}get volume(){return this._volume}set volume(e){this._volume=function(e,t,i){return Math.max(t,Math.min(i,Number(e)||0))}(e,0,1),this._muted=!1,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}get muted(){return this._muted}set muted(e){this._muted=!!e,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}play(){return this.engine.play()}pause(){this.engine.pause()}load(){this._src&&this.engine.load(this._src)}getM3u8State(){return this.engine.getHlsState()}switchM3u8Quality(e){return this.engine.selectHlsQuality(e)}switchM3u8Audio(e){return this.engine.selectHlsAudio(e)}get videoWidth(){return this.engine.videoWidth}get videoHeight(){return this.engine.videoHeight}get poster(){return this.option.poster||""}set poster(e){this.option.poster=e}get autoplay(){return this.option.autoplay||!1}set autoplay(e){}get loop(){return this.option.loop||!1}set loop(e){}get controls(){return!1}set controls(e){}get playsInline(){return!0}set playsInline(e){}get crossOrigin(){return this.option.crossOrigin||""}set crossOrigin(e){}get preload(){return"auto"}set preload(e){}get defaultMuted(){return!1}set defaultMuted(e){}get defaultPlaybackRate(){return 1}set defaultPlaybackRate(e){}canPlayType(e){return"maybe"}getBoundingClientRect(){return this.canvas.getBoundingClientRect()}requestVideoFrameCallback(e){return requestAnimationFrame(t=>{e(t,{presentationTime:this.engine.currentTime,expectedDisplayTime:t+16.6,width:this.engine.videoWidth,height:this.engine.videoHeight,mediaTime:this.engine.currentTime,presentedFrames:0,processingDuration:0,captureTime:t,receiveTime:t,rtpTimestamp:0})})}cancelVideoFrameCallback(e){cancelAnimationFrame(e)}setAttribute(e,t){"src"===e?this.src=t:"autoplay"===e?this.autoplay=t:"loop"===e?this.loop=t:"muted"===e?this.muted=!0:this.canvas.setAttribute(e,t)}destroy(){this.engine.destroy()}}return function(t={}){return i=>{const{constructor:r}=i,{createElement:a}=r.utils,s=a("canvas"),n=s.getContext("2d"),o=new Zo({art:i,canvas:s,ctx:n,option:t});i.mediabunny=o;const c={};for(const e in s)"function"===typeof s[e]&&(c[e]=s[e].bind(s));const l=new Set([...Object.getOwnPropertyNames(o),...Object.getOwnPropertyNames(Object.getPrototypeOf(o))]);for(const e of l)"constructor"!==e&&(e in s||Object.defineProperty(s,e,{get(){const t=o[e];return"function"===typeof t?t.bind(o):t},set(t){o[e]=t},configurable:!0,enumerable:!0}));for(const e in c)s[e]=(...t)=>c[e](...t);function u(){const e=i.template?.$player;e&&!i.option.autoSize&&Object.assign(s.style,{width:"100%",height:"100%",objectFit:"contain"})}return i.on("resize",u),i.on("video:loadedmetadata",u),function({art:t,shim:i,option:r}){if(r.m3u8)return t.on("video:loadedmetadata",d),t.on("restart",d),{update:d};function a(e){t.controls.cache.has(e)&&t.controls.remove(e)}function s(e){t.setting.find(e)&&t.setting.remove(e)}function n(){a("mediabunny-quality"),s("mediabunny-quality")}function o(){a("mediabunny-audio"),s("mediabunny-audio")}function c(e={}){return e.control||e.setting}async function l(a){const s=r.m3u8?.quality||{};if(!c(s)||!a?.levels.length)return void n();const o=s.auto||"Auto",l=s.title||"Quality",u=s.getName||(e=>e.name||`${e.height}P`),h=a.currentLevel?u(a.currentLevel):o,f=e(a.levels.map(e=>({html:u(e),value:e.id,default:a.currentLevel?.id===e.id})),"html").sort((e,t)=>{const i=a.levels.find(t=>t.id===e.value),r=a.levels.find(e=>e.id===t.value);return(r?.height||0)-(i?.height||0)});f.push({html:o,value:"auto",default:!a.currentLevel});const m=async e=>(await i.switchM3u8Quality(e.value),t.notice.show=`${l}: ${e.html}`,await d(),e.html);s.control&&t.controls.update({name:"mediabunny-quality",position:"right",html:h,style:{padding:"0 10px"},selector:f,onSelect:m}),s.setting&&t.setting.update({name:"mediabunny-quality",tooltip:h,html:l,icon:'',width:200,selector:f,onSelect:m})}async function u(a){const s=r.m3u8?.audio||{};if(!c(s)||!a?.audios.length||a.audios.length<2)return void o();const n=s.auto||"Auto",l=s.title||"Audio",u=s.getName||(e=>e.name||e.lang||e.language),h=a.currentAudio?u(a.currentAudio):n,f=e(a.audios.map(e=>({html:u(e),value:e.id,default:a.currentAudio?.id===e.id})),"html");f.push({html:n,value:"auto",default:!a.currentAudio});const m=async e=>(await i.switchM3u8Audio(e.value),t.notice.show=`${l}: ${e.html}`,await d(),e.html);s.control&&t.controls.update({name:"mediabunny-audio",position:"right",html:h,style:{padding:"0 10px"},selector:f,onSelect:m}),s.setting&&t.setting.update({name:"mediabunny-audio",tooltip:h,html:l,icon:'',width:200,selector:f,onSelect:m})}async function d(){const e=await i.getM3u8State();if(!e)return n(),void o();await Promise.all([l(e),u(e)])}}({art:i,shim:o,option:t}),i.on("destroy",()=>{delete i.mediabunny,o.destroy()}),s}}}); +!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerProxyMediabunny=t(),define(function(){return e.artplayerProxyMediabunny})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerProxyMediabunny=t()}(this,function(){"use strict";var e,t=e=>{throw TypeError(e)},i=(e,i,r)=>i.has(e)||t("Cannot "+r),r=(e,t,r)=>(i(e,t,"read from private field"),r?r.call(e):t.get(e));function a(e,t){const i=new Map;return e.filter(e=>{const r=e[t];return void 0===r||!i.has(r)&&i.set(r,1)})}class s{constructor(){var i,r,a;i=this,a=!1,(r=e).has(i)?t("Cannot add the same private member more than once"):r instanceof WeakSet?r.add(i):r.set(i,a),this.listeners=new Map}addEventListener(t,i){r(this,e)||(this.listeners.has(t)||this.listeners.set(t,[]),this.listeners.get(t)?.push(i))}removeEventListener(e,t){const i=this.listeners.get(e);if(!i)return;const r=i.indexOf(t);r>=0&&i.splice(r,1)}emit(t,i){if(r(this,e))return;const a=Object.assign(new Event(t),{detail:i});this.listeners.get(t)?.forEach(t=>{r(this,e)||t(a)})}destroy(){var t,r,a,s;a=!0,i(t=this,r=e,"write to private field"),s?s.call(t,a):r.set(t,a),this.listeners.clear()}}function n(e){if(!e)throw new Error("Assertion failed.")}e=new WeakMap;const o=e=>{const t=(e%360+360)%360;if(0===t||90===t||180===t||270===t)return t;throw new Error(`Invalid rotation ${e}.`)},c=e=>e&&e[e.length-1],l=e=>{let t=0;for(;0===e.readBits(1)&&t<32;)t++;if(t>=32)throw new Error("Invalid exponential-Golomb code.");return(1<{const i=t+1,r=Math.floor(Math.log2(i));e.writeBits(r,0),e.writeBits(1,1),e.writeBits(r,i-2**r)},d=e=>{const t=l(e);return 0===(1&t)?-(t>>1):t+1>>1},h=e=>e.constructor===Uint8Array?e:ArrayBuffer.isView(e)?new Uint8Array(e.buffer,e.byteOffset,e.byteLength):new Uint8Array(e),f=e=>e.constructor===DataView?e:ArrayBuffer.isView(e)?new DataView(e.buffer,e.byteOffset,e.byteLength):new DataView(e),m=new TextDecoder,p=e=>Object.fromEntries(Object.entries(e).map(([e,t])=>[t,e])),g={bt709:1,bt470bg:5,smpte170m:6,bt2020:9,smpte432:12},k=p(g),y={bt709:1,smpte170m:6,linear:8,"iec61966-2-1":13,pq:16,hlg:18},b=p(y),w={rgb:0,bt709:1,bt470bg:5,smpte170m:6,"bt2020-ncl":9},T=p(w),S=e=>!!e&&!!e.primaries&&!!e.transfer&&!!e.matrix&&void 0!==e.fullRange,v={primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0},P=e=>e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e);class I{constructor(){this.currentPromise=Promise.resolve(),this.pending=0}async acquire(){let e;const t=new Promise(t=>{let i=!1;e=()=>{i||(t(),this.pending--,i=!0)}}),i=this.currentPromise;return this.currentPromise=t,this.pending++,await i,e}}const x=/^[0-9a-fA-F]+$/,C=e=>[...e].map(e=>e.toString(16).padStart(2,"0")).join(""),B=e=>(e=(e=(e=(e=(e=e>>1&1431655765|(1431655765&e)<<1)>>2&858993459|(858993459&e)<<2)>>4&252645135|(252645135&e)<<4)>>8&16711935|(16711935&e)<<8)>>16&65535|(65535&e)<<16)>>>0,E=(e,t,i)=>{let r=0,a=e.length-1,s=-1;for(;r<=a;){const n=r+a>>1,o=i(e[n]);o===t?(s=n,a=n-1):o{let r=0,a=e.length-1,s=-1;for(;r<=a;){const n=r+(a-r+1)/2|0;i(e[n])<=t?(s=n,r=n+1):a=n-1}return s},R=(e,t,i)=>{const r=_(e,i(t),i);e.splice(r+1,0,t)},F=()=>{let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}},A=(e,t)=>{const i=e.indexOf(t);-1!==i&&e.splice(i,1)},D=(e,t)=>{for(let i=e.length-1;i>=0;i--)if(t(e[i]))return e[i]},M=(e,t)=>{for(let i=e.length-1;i>=0;i--)if(t(e[i]))return i;return-1},N=e=>{throw new Error(`Unexpected value: ${e}`)},O=(e,t,i)=>{const r=e.getUint8(t),a=e.getUint8(t+1),s=e.getUint8(t+2);return i?r|a<<8|s<<16:r<<16|a<<8|s},L=(e,t,i,r)=>{i>>>=0,i&=16777215,e.setUint8(t,i>>>16&255),e.setUint8(t+1,i>>>8&255),e.setUint8(t+2,255&i)},z=(e,t)=>({async next(){const i=await e.next();return i.done?{value:void 0,done:!0}:{value:t(i.value),done:!1}},return:()=>e.return(),throw:t=>e.throw(t),[Symbol.asyncIterator](){return this}}),U=(e,t,i)=>Math.max(t,Math.min(i,e)),q="und",W=e=>{const t=Math.round(e);return Math.abs(e/t-1)<10*Number.EPSILON?t:e},H=(e,t)=>Math.round(e/t)*t,V=(e,t)=>Math.round(e*t)/t,j=(e,t)=>Math.floor(e/t)*t,K=e=>{let t=0;for(;0!==e;)e&=e-1,t++;return t},X=/^[a-z]{3}$/,$=e=>X.test(e),G=1e6*(1+Number.EPSILON),Q=(e,t)=>{const i={...e,...t};if(e.headers||t.headers){const r=e.headers?Y(e.headers):{},a=t.headers?Y(t.headers):{},s={...r};Object.entries(a).forEach(([e,t])=>{const i=Object.keys(s).find(t=>t.toLowerCase()===e.toLowerCase());i&&delete s[i],s[e]=t}),i.headers=s}return i},Y=e=>{if(e instanceof Headers){const t={};return e.forEach((e,i)=>{t[i]=e}),t}if(Array.isArray(e)){const t={};return e.forEach(([e,i])=>{t[e]=i}),t}return e},J=async(e,t,i,r,a)=>{let s=0;for(;;)try{return await e(t,i)}catch(n){if(a())throw n;s++;const e=r(s,n,t);if(null===e)throw n;if(ve._error("Retrying failed fetch. Error:",n),!Number.isFinite(e)||e<0)throw new TypeError("Retry delay must be a non-negative finite number.");if(e>0&&await be(1e3*e),a())throw n}};class Z{constructor(){this.currentPromise=Promise.resolve()}call(e){return this.currentPromise=this.currentPromise.then(e)}}let ee=null;const te=()=>null!==ee?ee:ee=!("undefined"===typeof navigator||!(navigator.vendor?.match(/apple/i)||/AppleWebKit/.test(navigator.userAgent)&&!/Chrome/.test(navigator.userAgent)||/\b(iPad|iPhone|iPod)\b/.test(navigator.userAgent)));let ie=null;const re=()=>null!==ie?ie:ie="undefined"!==typeof navigator&&navigator.userAgent?.includes("Firefox");let ae=null;const se=()=>null!==ae?ae:ae=!("undefined"===typeof navigator||!navigator.vendor?.includes("Google Inc")&&!/Chrome/.test(navigator.userAgent)),ne=e=>"undefined"===typeof globalThis.isSecureContext||globalThis.isSecureContext?`${e} is not available in this environment.`:`${e} is not available in this environment; this may be because this page is running in an insecure context. Try serving your page over HTTPS or use localhost.`,oe=(async()=>{})().constructor,ce=e=>e instanceof oe||e instanceof Promise||"function"===typeof e?.then,le=(e,t)=>-1!==e?e:t,ue=(e,t,i,r)=>e<=r&&i<=t,de=e=>{const t=atob(e),i=new Uint8Array(t.length);for(let r=0;r{Symbol.dispose??(Symbol.dispose=Symbol("Symbol.dispose"))},fe=e=>"number"===typeof e&&!Number.isNaN(e),me=(e,t)=>{if(t.includes("://"))return t;if(e.includes("://")){const t=e.indexOf("?");-1!==t&&(e=e.slice(0,t))}let i;if(t.startsWith("/")){const r=e.indexOf("://");if(-1===r)i=t;else{const a=e.indexOf("/",r+3);i=-1===a?e+t:e.slice(0,a)+t}}else{const r=e.lastIndexOf("/");i=-1===r?t:e.slice(0,r+1)+t}let r="";const a=i.indexOf("://");if(-1!==a){const e=i.indexOf("/",a+3);-1!==e&&(r=i.slice(0,e),i=i.slice(e))}const s=i.split("/"),n=[];for(const o of s)".."===o?n.pop():"."!==o&&n.push(o);return r+n.join("/")},pe=(e,t)=>{let i=0;for(let r=0;r{let i=-1,r=1/0;for(let a=0;a{n(Number.isInteger(e.num)),n(Number.isInteger(e.den)),n(0!==e.den);let t=Math.abs(e.num),i=Math.abs(e.den);for(;0!==i;){const e=t%i;t=i,i=e}const r=t||1;return{num:e.num/r,den:e.den/r}},ye=(e,t)=>{if("object"!==typeof e||!e)throw new TypeError(`${t} must be an object.`);if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(`${t}.left must be a non-negative integer.`);if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(`${t}.top must be a non-negative integer.`);if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(`${t}.width must be a non-negative integer.`);if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(`${t}.height must be a non-negative integer.`)},be=e=>new Promise(t=>setTimeout(t,e));class we{constructor(){this._listeners=new Map}on(e,t,i){this._listeners.has(e)||this._listeners.set(e,new Set);const r={fn:t,once:i?.once??!1};return this._listeners.get(e).add(r),()=>{this._listeners.get(e)?.delete(r)}}_emit(...e){const[t,i]=e,r=this._listeners.get(t);if(r)for(const s of r){try{s.fn(i)}catch(a){console.error(a)}s.once&&r.delete(s)}}}var Te,Se;(Se=Te||(Te={}))[Se.Silent=0]="Silent",Se[Se.Errors=1]="Errors",Se[Se.Warnings=2]="Warnings",Se[Se.Info=3]="Info";class ve{constructor(){}static get level(){return ve._level}static set level(e){if(e!==Te.Silent&&e!==Te.Errors&&e!==Te.Warnings&&e!==Te.Info)throw new TypeError("Invalid log level. Use one of the values of the LogLevel enum.");ve._level=e}static get _emitter(){return ve._emitterInstance??(ve._emitterInstance=new we)}static on(e,t,i){return ve._emitter.on(e,t,i)}static _error(...e){ve._emitter._emit("error",e),ve._level>=Te.Errors&&console.error(...e)}static _warn(...e){ve._emitter._emit("warn",e),ve._level>=Te.Warnings&&console.warn(...e)}static _info(...e){ve._emitter._emit("info",e),ve._level>=Te.Info&&console.info(...e)}}ve._level=Te.Info,ve._emitterInstance=null;class Pe{constructor(e,t){if(this.data=e,this.mimeType=t,!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("string"!==typeof t)throw new TypeError("mimeType must be a string.")}}class Ie{constructor(e,t,i,r){if(this.data=e,this.mimeType=t,this.name=i,this.description=r,!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if(void 0!==t&&"string"!==typeof t)throw new TypeError("mimeType, when provided, must be a string.");if(void 0!==i&&"string"!==typeof i)throw new TypeError("name, when provided, must be a string.");if(void 0!==r&&"string"!==typeof r)throw new TypeError("description, when provided, must be a string.")}}const xe={default:!0,primary:!0,forced:!1,original:!1,commentary:!1,hearingImpaired:!1,visuallyImpaired:!1};class Ce{constructor(e){this.bytes=e,this.pos=0}seekToByte(e){this.pos=8*e}readBit(){const e=Math.floor(this.pos/8),t=this.bytes[e]??0,i=7-(7&this.pos),r=(t&1<>i;return this.pos++,r}readBits(e){if(1===e)return this.readBit();let t=0;for(let i=0;i>i-r-1<0&&this.writeBits(r,t.readBits(r))}readAlignedByte(){if(this.pos%8!==0)throw new Error("Bitstream is not byte-aligned.");const e=this.pos/8,t=this.bytes[e]??0;return this.pos+=8,t}skipBits(e){this.pos+=e}getBitsLeft(){return 8*this.bytes.length-this.pos}clone(){const e=new Ce(this.bytes);return e.pos=this.pos,e}}const Be=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350],Ee=[-1,1,2,3,4,5,6,8],_e=e=>{if(!e||e.byteLength<2)throw new TypeError("AAC description must be at least 2 bytes long.");const t=new Ce(e),i=Re(t),{frequencyIndex:r,sampleRate:a}=Fe(t),s=t.readBits(4);let n=null;s>=1&&s<=7&&(n=Ee[s]);let o=i,c=!1,l=a;if(5===i||29===i)c=29===i,l=Fe(t).sampleRate,o=Re(t),22===o&&t.skipBits(4);else for(;t.getBitsLeft()>15;){const e=t.pos;if(695===t.readBits(11)){5===Re(t)&&t.readBits(1)&&(l=Fe(t).sampleRate,t.getBitsLeft()>11&&1352===t.readBits(11)&&(c=!!t.readBits(1)));break}t.pos=e+1}return null!==n&&n>1&&(c=!1),{objectType:i,coreObjectType:o,frequencyIndex:r,channelConfiguration:s,outputSampleRate:l,outputNumberOfChannels:c&&1===n?2:n}},Re=e=>{const t=e.readBits(5);return 31===t?32+e.readBits(6):t},Fe=e=>{const t=e.readBits(4);return 15===t?{frequencyIndex:t,sampleRate:e.readBits(24)}:{frequencyIndex:t,sampleRate:t=e.length-2)break;t=r;let a=0;t+3i&&(yield{offset:i,length:t-i}),i=t+a,t=i):t++}-1!==i&&i{if(t.description){const i=3&h(t.description)[4];return Ue(e,i+1)}return ze(e)},We=e=>31&e,He=e=>{const t=[],i=e.length;for(let r=0;r{const t=e.reduce((e,t)=>e+Ve.byteLength+t.byteLength,0),i=new Uint8Array(t);let r=0;for(const a of e)i.set(Ve,r),r+=Ve.byteLength,i.set(a,r),r+=a.byteLength;return i},Ke=(e,t)=>{const i=e.reduce((e,i)=>e+t+i.byteLength,0),r=new Uint8Array(i);let a=0;for(const s of e){const e=new DataView(r.buffer,r.byteOffset,r.byteLength);switch(t){case 1:e.setUint8(a,s.byteLength);break;case 2:e.setUint16(a,s.byteLength,!1);break;case 3:L(e,a,s.byteLength);break;case 4:e.setUint32(a,s.byteLength,!1)}a+=t,r.set(s,a),a+=s.byteLength}return r},Xe=e=>{try{const t=[],i=[],r=[];for(const n of ze(e)){const a=e.subarray(n.offset,n.offset+n.length),s=We(a[0]);s===Me.SPS?t.push(a):s===Me.PPS?i.push(a):s===Me.SPS_EXT&&r.push(a)}if(0===t.length)return null;if(0===i.length)return null;const a=t[0],s=Ye(a);n(null!==s);const o=100===s.profileIdc||110===s.profileIdc||122===s.profileIdc||144===s.profileIdc;return{configurationVersion:1,avcProfileIndication:s.profileIdc,profileCompatibility:s.constraintFlags,avcLevelIndication:s.levelIdc,lengthSizeMinusOne:3,sequenceParameterSets:t,pictureParameterSets:i,chromaFormat:o?s.chromaFormatIdc:null,bitDepthLumaMinus8:o?s.bitDepthLumaMinus8:null,bitDepthChromaMinus8:o?s.bitDepthChromaMinus8:null,sequenceParameterSetExt:o?r:null}}catch(t){return ve._error("Error building AVC Decoder Configuration Record:",t),null}},$e=e=>{const t=[];t.push(e.configurationVersion),t.push(e.avcProfileIndication),t.push(e.profileCompatibility),t.push(e.avcLevelIndication),t.push(252|3&e.lengthSizeMinusOne),t.push(224|31&e.sequenceParameterSets.length);for(const i of e.sequenceParameterSets){const e=i.byteLength;t.push(e>>8),t.push(255&e);for(let r=0;r>8),t.push(255&e);for(let r=0;r>8),t.push(255&e);for(let r=0;r{try{const t=f(e);let i=0;const r=t.getUint8(i++),a=t.getUint8(i++),s=t.getUint8(i++),n=t.getUint8(i++),o=3&t.getUint8(i++),c=31&t.getUint8(i++),l=[];for(let f=0;f{try{const t=He(e),i=new Ce(t);i.skipBits(1),i.skipBits(2);if(7!==i.readBits(5))return null;const r=i.readAlignedByte(),a=i.readAlignedByte(),s=i.readAlignedByte();l(i);let o=1,u=0,h=0,f=0;if(100===r||110===r||122===r||244===r||44===r||83===r||86===r||118===r||128===r){o=l(i),3===o&&(f=i.readBits(1)),u=l(i),h=l(i),i.skipBits(1);if(i.readBits(1))for(let e=0;e<(3!==o?8:12);e++){if(i.readBits(1)){const t=e<6?16:64;let r=8,a=8;for(let e=0;ee.level>=s)??c($t),r=Math.min(Math.floor(i.maxDpbMbs/(e*t)),16);C=r,B=r}else C=0,B=0}return n(null!==B),{emulationUnpreventedBytes:t,profileIdc:r,constraintFlags:a,levelIdc:s,frameMbsOnlyFlag:T,chromaFormatIdc:o,bitDepthLumaMinus8:u,bitDepthChromaMinus8:h,codedWidth:k,codedHeight:y,displayWidth:b,displayHeight:w,pixelAspectRatio:x,colourPrimaries:S,matrixCoefficients:P,transferCharacteristics:v,fullRangeFlag:I,numReorderFrames:C,maxDecFrameBuffering:B,vuiParametersFlagBitOffset:R,bitstreamRestrictionFlagBitOffset:E,bitstreamRestrictionFlag:_}}catch(t){return ve._error("Error parsing AVC SPS:",t),null}},Je=e=>{const t=l(e);e.skipBits(4),e.skipBits(4);for(let i=0;i<=t;i++)l(e),l(e),e.skipBits(1);e.skipBits(5),e.skipBits(5),e.skipBits(5),e.skipBits(5)},Ze=e=>{n(1!==e.bitstreamRestrictionFlag);const t=new Uint8Array(e.emulationUnpreventedBytes.byteLength+64),i=new Ce(e.emulationUnpreventedBytes),r=new Ce(t);null===e.bitstreamRestrictionFlag?(r.copyBits(e.vuiParametersFlagBitOffset,i),r.writeBits(1,1),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0)):(n(null!==e.bitstreamRestrictionFlagBitOffset),r.copyBits(e.bitstreamRestrictionFlagBitOffset,i)),r.writeBits(1,1),r.writeBits(1,1),u(r,2),u(r,1),u(r,16),u(r,16),u(r,e.numReorderFrames),u(r,e.maxDecFrameBuffering),r.writeBits(1,1),r.writeBits((8-r.pos%8)%8,0);const a=r.pos/8;return n(Number.isInteger(a)),(e=>{const t=[];let i=0;for(const r of e)2===i&&r<=3&&(t.push(3),i=0),t.push(r),i=0===r?i+1:0;return new Uint8Array(t)})(t.subarray(0,a))},et=(e,t)=>{if(t.description){const i=3&h(t.description)[21];return Ue(e,i+1)}return ze(e)},tt=e=>e>>1&63,it=e=>{try{const t=new Ce(He(e));t.skipBits(16),t.readBits(4);const i=t.readBits(3),r=t.readBits(1),{general_profile_space:a,general_tier_flag:s,general_profile_idc:n,general_profile_compatibility_flags:o,general_constraint_indicator_flags:c,general_level_idc:u}=at(t,i);l(t);const d=l(t);let h=0;3===d&&(h=t.readBits(1));const f=l(t),m=l(t);let p=f,g=m;if(t.readBits(1)){const e=l(t),i=l(t),r=l(t),a=l(t);let s=1,n=1;const o=0===h?d:0;1===o?(s=2,n=2):2===o&&(s=2,n=1),p-=(e+i)*s,g-=(r+a)*n}const k=l(t),y=l(t);l(t);const b=t.readBits(1);let w=0;for(let e=b?0:i;e<=i;e++)l(t),w=l(t),l(t);l(t),l(t),l(t),l(t),l(t),l(t),t.readBits(1)&&t.readBits(1)&&st(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),l(t),l(t),t.skipBits(1));const T=l(t);if(nt(t,T),t.readBits(1)){const e=l(t);for(let i=0;i{try{const t=[],i=[],r=[],a=[];for(const c of ze(e)){const s=e.subarray(c.offset,c.offset+c.length),n=tt(s[0]);n===Oe.VPS_NUT?t.push(s):n===Oe.SPS_NUT?i.push(s):n===Oe.PPS_NUT?r.push(s):n!==Oe.PREFIX_SEI_NUT&&n!==Oe.SUFFIX_SEI_NUT||a.push(s)}if(0===i.length||0===r.length)return null;const s=it(i[0]);if(!s)return null;let n=0;if(r.length>0){const e=r[0],t=new Ce(He(e));t.skipBits(16),l(t),l(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),l(t),l(t),d(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&l(t),d(t),d(t),t.skipBits(1),t.skipBits(1),t.skipBits(1),t.skipBits(1);const i=t.readBits(1),a=t.readBits(1);n=i||a?i&&!a?2:!i&&a?3:0:0}const o=[...t.length?[{arrayCompleteness:1,nalUnitType:Oe.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:Oe.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:Oe.PPS_NUT,nalUnits:r}]:[],...a.length?[{arrayCompleteness:1,nalUnitType:tt(a[0][0]),nalUnits:a}]:[]];return{configurationVersion:1,generalProfileSpace:s.generalProfileSpace,generalTierFlag:s.generalTierFlag,generalProfileIdc:s.generalProfileIdc,generalProfileCompatibilityFlags:s.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:s.generalConstraintIndicatorFlags,generalLevelIdc:s.generalLevelIdc,minSpatialSegmentationIdc:s.minSpatialSegmentationIdc,parallelismType:n,chromaFormatIdc:s.chromaFormatIdc,bitDepthLumaMinus8:s.bitDepthLumaMinus8,bitDepthChromaMinus8:s.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:s.spsMaxSubLayersMinus1+1,temporalIdNested:s.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:o}}catch(t){return ve._error("Error building HEVC Decoder Configuration Record:",t),null}},at=(e,t)=>{const i=e.readBits(2),r=e.readBits(1),a=e.readBits(5);let s=0;for(let u=0;u<32;u++)s=s<<1|e.readBits(1);const n=new Uint8Array(6);for(let u=0;u<6;u++)n[u]=e.readBits(8);const o=e.readBits(8),c=[],l=[];for(let u=0;u0)for(let u=t;u<8;u++)e.skipBits(2);for(let u=0;u{for(let t=0;t<4;t++)for(let i=0;i<(3===t?2:6);i++){if(e.readBits(1)){const i=Math.min(64,1<<4+(t<<1));t>1&&d(e);for(let t=0;t{const i=[];for(let r=0;r{let a=0,s=0,n=0;if(0!==t&&(s=e.readBits(1)),s){if(t===i){n=t-(l(e)+1)}else n=t-1;e.readBits(1),l(e);const s=r[n]??0;for(let t=0;t<=s;t++){e.readBits(1)||e.readBits(1)}a=r[n]}else{const t=l(e),i=l(e);for(let r=0;r{let i=2,r=2,a=2,s=0,n=0,o={num:1,den:1};if(e.readBits(1)){const t=e.readBits(8);if(255===t)o={num:e.readBits(16),den:e.readBits(16)};else{const e=Qe[t];e&&(o=e)}}return e.readBits(1)&&e.readBits(1),e.readBits(1)&&(e.readBits(3),s=e.readBits(1),e.readBits(1)&&(i=e.readBits(8),r=e.readBits(8),a=e.readBits(8))),e.readBits(1)&&(l(e),l(e)),e.readBits(1),e.readBits(1),e.readBits(1),e.readBits(1)&&(l(e),l(e),l(e),l(e)),e.readBits(1)&&(e.readBits(32),e.readBits(32),e.readBits(1)&&l(e),e.readBits(1)&<(e,!0,t)),e.readBits(1)&&(e.readBits(1),e.readBits(1),e.readBits(1),n=l(e),l(e),l(e),l(e),l(e)),{pixelAspectRatio:o,colourPrimaries:i,transferCharacteristics:r,matrixCoefficients:a,fullRangeFlag:s,minSpatialSegmentationIdc:n}},lt=(e,t,i)=>{let r=!1,a=!1,s=!1;r=1===e.readBits(1),a=1===e.readBits(1),(r||a)&&(s=1===e.readBits(1),s&&(e.readBits(8),e.readBits(5),e.readBits(1),e.readBits(5)),e.readBits(4),e.readBits(4),s&&e.readBits(4),e.readBits(5),e.readBits(5),e.readBits(5));for(let n=0;n<=i;n++){let t=!0;1===e.readBits(1)||(t=1===e.readBits(1));let i=!1;t?l(e):i=1===e.readBits(1);let n=1;if(!i){n=l(e)+1}r&&ut(e,n,s),a&&ut(e,n,s)}},ut=(e,t,i)=>{for(let r=0;r{const i=new Set;let r=dt.audAllowed;for(const s of et(e,t)){if(r===dt.noMoreDataAllowed){i.add(s.offset);continue}const t=tt(e[s.offset]);if(r===dt.eoBitstreamAllowed&&37!==t){i.add(s.offset);continue}let a=!1;35===t?r>dt.audAllowed?a=!0:r=dt.beforeFirstVcl:t<=31?r>dt.afterFirstVcl?a=!0:r=dt.afterFirstVcl:36===t?r!==dt.afterFirstVcl?a=!0:r=dt.eoBitstreamAllowed:37===t?r=41&&t<=44||t>=48&&t<=55?r>dt.beforeFirstVcl?a=!0:r=dt.beforeFirstVcl:(38===t||40===t||t>=45&&t<=47||t>=56&&t<=63)&&r{if(t.description){const i=3&h(t.description)[21];return Ke(e,i+1)}return je(e)})(a,t)},mt={1:{colourPrimaries:5,transferCharacteristics:6,matrixCoefficients:5},2:{colourPrimaries:1,transferCharacteristics:1,matrixCoefficients:1},3:{colourPrimaries:6,transferCharacteristics:6,matrixCoefficients:6},4:{colourPrimaries:7,transferCharacteristics:7,matrixCoefficients:7},5:{colourPrimaries:9,transferCharacteristics:14,matrixCoefficients:9},7:{colourPrimaries:1,transferCharacteristics:13,matrixCoefficients:0}},pt=e=>{const t=new Ce(e);if(2!==t.readBits(2))return null;const i=t.readBits(1),r=(t.readBits(1)<<1)+i;3===r&&t.skipBits(1);if(1===t.readBits(1))return null;if(0!==t.readBits(1))return null;t.skipBits(2);if(4817730!==t.readBits(24))return null;let a=8;if(r>=2){a=t.readBits(1)?12:10}const s=t.readBits(3);let n=0,o=0;if(7!==s){if(o=t.readBits(1),1===r||3===r){const e=t.readBits(1),i=t.readBits(1);n=e||i?e&&!i?2:1:3,t.skipBits(1)}else n=1}else n=3,o=1;const l=(t.readBits(16)+1)*(t.readBits(16)+1);let u=c(Gt).level;for(const c of Gt)if(l<=c.maxPictureSize){u=c.level;break}const d=mt[s];return{profile:r,level:u,bitDepth:a,chromaSubsampling:n,videoFullRangeFlag:o,colourPrimaries:d?.colourPrimaries??2,transferCharacteristics:d?.transferCharacteristics??2,matrixCoefficients:d?.matrixCoefficients??2}},gt=function*(e){const t=new Ce(e),i=()=>{let e=0;for(let i=0;i<8;i++){const r=t.readAlignedByte();if(e+=(127&r)*2**(7*i),!(128&r))break;if(7===i&&128&r)return null}return e>2**32-1?null:e};for(;t.getBitsLeft()>=8;){t.skipBits(1);const r=t.readBits(4),a=t.readBits(1),s=t.readBits(1);let o;if(t.skipBits(1),a&&t.skipBits(8),s){const e=i();if(null===e)return;o=e}else o=Math.floor(t.getBitsLeft()/8);n(t.pos%8===0),yield{type:r,data:e.subarray(t.pos/8,t.pos/8+o)},t.skipBits(8*o)}},kt=e=>{for(const{type:t,data:i}of gt(e)){if(1!==t)continue;const e=new Ce(i),r=e.readBits(3);e.readBits(1);const a=e.readBits(1);let s=0,n=0,o=0;if(a)s=e.readBits(5);else{let t=0;if(e.readBits(1)){e.skipBits(32),e.skipBits(32);if(e.readBits(1)){let t=0;for(;t<32&&!e.readBits(1);)t++;t<32&&e.skipBits(t)}t=e.readBits(1),t&&(o=e.readBits(5),e.skipBits(32),e.skipBits(5),e.skipBits(5))}const i=e.readBits(1),r=e.readBits(5);for(let a=0;a<=r;a++){e.skipBits(12);const r=e.readBits(5);if(0===a&&(s=r),r>7){const t=e.readBits(1);0===a&&(n=t)}if(t){if(e.readBits(1)){const t=o+1;e.skipBits(t),e.skipBits(t),e.skipBits(1)}}if(i){e.readBits(1)&&e.skipBits(4)}}}const c=e.readBits(4),l=e.readBits(4),u=c+1;e.skipBits(u);const d=l+1;e.skipBits(d);let h=0;if(h=a?0:e.readBits(1),h&&(e.skipBits(4),e.skipBits(3)),e.skipBits(1),e.skipBits(1),e.skipBits(1),!a){e.skipBits(1),e.skipBits(1),e.skipBits(1),e.skipBits(1);const t=e.readBits(1);t&&(e.skipBits(1),e.skipBits(1));let i=0;if(i=e.readBits(1)?2:e.readBits(1),i>0){e.readBits(1)||e.skipBits(1)}t&&e.skipBits(3)}e.skipBits(1),e.skipBits(1),e.skipBits(1);const f=e.readBits(1);let m=8;if(2===r&&f){m=e.readBits(1)?12:10}else r<=2&&(m=f?10:8);let p=0;1!==r&&(p=e.readBits(1));let g=2,k=2,y=2;e.readBits(1)&&(g=e.readBits(8),k=e.readBits(8),y=e.readBits(8));let b=0,w=1,T=1,S=0;return p?b=e.readBits(1):1===g&&13===k&&0===y?(b=1,w=0,T=0):(b=e.readBits(1),0===r?(w=1,T=1):1===r?(w=0,T=0):12===m?(w=e.readBits(1),T=w?e.readBits(1):0):(w=1,T=0),w&&T&&(S=e.readBits(2))),{profile:r,level:s,tier:n,bitDepth:m,monochrome:p,chromaSubsamplingX:w,chromaSubsamplingY:T,chromaSamplePosition:S,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},yt=e=>{if(e.length<36)return null;const t=f(e);if(1768124518!==t.getUint32(4))return null;return t.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:t.getUint8(22),transferCharacteristics:t.getUint8(23),matrixCoefficients:t.getUint8(24)}},bt=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],wt=e=>{if(e.length<7)throw new Error("Setup header is too short.");if(5!==e[0])throw new Error("Wrong packet type in Setup header.");if("vorbis"!==String.fromCharCode(...e.slice(1,7)))throw new Error("Invalid packet signature in Setup header.");const t=e.length,i=new Uint8Array(t);for(let u=0;u97;)if(1===r.readBits(1)){a=r.pos;break}if(0===a)throw new Error("Invalid Setup header: framing bit not found.");let s=0,n=!1,o=0;for(;r.getBitsLeft()>=97;){const e=r.pos,t=r.readBits(8),i=r.readBits(16),a=r.readBits(16);if(t>63||0!==i||0!==a){r.pos=e;break}if(r.skipBits(1),s++,s>64)break;r.clone().readBits(6)+1===s&&(n=!0,o=s)}if(!n)throw new Error("Invalid Setup header: mode header not found.");if(o>63)throw new Error(`Unsupported mode count: ${o}.`);const c=o;r.pos=0,r.skipBits(a);const l=Array(c).fill(0);for(let u=c-1;u>=0;u--)r.skipBits(40),l[u]=r.readBits(1);return{modeBlockflags:l}},Tt=(e,t,i)=>{switch(e){case"avc":for(const e of qe(i,t)){const t=i[e.offset],r=We(t);if(r>=Me.NON_IDR_SLICE&&r<=Me.SLICE_DPC)return"delta";if(r===Me.IDR)return"key";if(r===Me.SEI&&!se()){const t=i.subarray(e.offset,e.offset+e.length),r=He(t);let a=1;do{let e=0;for(;;){const t=r[a++];if(void 0===t)break;if(e+=t,t<255)break}let t=0;for(;;){const e=r[a++];if(void 0===e)break;if(t+=e,e<255)break}if(e===6){const e=new Ce(r);e.pos=8*a;const t=l(e),i=e.readBits(1);if(0===t&&1===i)return"key"}a+=t}while(a{var i,r;const a=f(e);let s=0;const n=a.getUint32(s,!0);s+=4;const o=m.decode(e.subarray(s,s+n));s+=n,n>0&&(t.raw??(t.raw={}),(i=t.raw).vendor??(i.vendor=o));const c=a.getUint32(s,!0);s+=4;for(let l=0;l0&&(t.trackNumber??(t.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(t.tracksTotal??(t.tracksTotal=r))}break;case"TRACKTOTAL":{const e=Number.parseInt(l,10);Number.isInteger(e)&&e>0&&(t.tracksTotal??(t.tracksTotal=e))}break;case"DISCNUMBER":{const e=l.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(t.discNumber??(t.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(t.discsTotal??(t.discsTotal=r))}break;case"DISCTOTAL":{const e=Number.parseInt(l,10);Number.isInteger(e)&&e>0&&(t.discsTotal??(t.discsTotal=e))}break;case"DATE":{const e=new Date(l);Number.isNaN(e.getTime())||(t.date??(t.date=e))}break;case"GENRE":t.genre??(t.genre=l);break;case"METADATA_BLOCK_PICTURE":{const e=de(l),i=f(e),r=i.getUint32(0,!1),a=i.getUint32(4,!1),s=String.fromCharCode(...e.subarray(8,8+a)),n=i.getUint32(8+a,!1),o=m.decode(e.subarray(12+a,12+a+n)),c=i.getUint32(a+n+28),u=e.subarray(a+n+32,a+n+32+c);t.images??(t.images=[]),t.images.push({data:u,mimeType:s,kind:3===r?"coverFront":4===r?"coverBack":"unknown",name:void 0,description:o||void 0})}}}},It=[2,1,2,3,3,4,4,5],xt=e=>{if(e.length<7)return null;if(11!==e[0]||119!==e[1])return null;const t=new Ce(e);t.skipBits(16),t.skipBits(16);const i=t.readBits(2);if(3===i)return null;const r=t.readBits(6),a=t.readBits(5);if(a>8)return null;const s=t.readBits(3),n=t.readBits(3);0!==(1&n)&&1!==n&&t.skipBits(2),0!==(4&n)&&t.skipBits(2),2===n&&t.skipBits(2);return{fscod:i,bsid:a,bsmod:s,acmod:n,lfeon:t.readBits(1),bitRateCode:Math.floor(r/2)}},Ct=[128,138,192,128,140,192,160,174,240,160,176,240,192,208,288,192,210,288,224,242,336,224,244,336,256,278,384,256,280,384,320,348,480,320,350,480,384,416,576,384,418,576,448,486,672,448,488,672,512,556,768,512,558,768,640,696,960,640,698,960,768,834,1152,768,836,1152,896,974,1344,896,976,1344,1024,1114,1536,1024,1116,1536,1280,1392,1920,1280,1394,1920,1536,1670,2304,1536,1672,2304,1792,1950,2688,1792,1952,2688,2048,2228,3072,2048,2230,3072,2304,2506,3456,2304,2508,3456,2560,2786,3840,2560,2788,3840],Bt=[1,2,3,6],Et=e=>{if(e.length<6)return null;if(11!==e[0]||119!==e[1])return null;const t=new Ce(e);t.skipBits(16);const i=t.readBits(2);if(t.skipBits(3),0!==i&&2!==i)return null;const r=t.readBits(11),a=t.readBits(2);let s,n=0;3===a?(n=t.readBits(2),s=3):s=t.readBits(2);const o=t.readBits(3),c=t.readBits(1),l=t.readBits(5);if(l<11||l>16)return null;const u=Bt[s];let d;d=a<3?Ae[a]/1e3:De[n]/1e3;return{dataRate:Math.round((r+1)*d/(16*u)),substreams:[{fscod:a,fscod2:n,bsid:l,bsmod:0,acmod:o,lfeon:c,numDepSub:0,chanLoc:0}]}},_t=e=>{const t=e.substreams[0];return n(t),t.fscod<3?Ae[t.fscod]:null!==t.fscod2&&t.fscod2<3?De[t.fscod2]:null},Rt=e=>{const t=e.substreams[0];n(t);let i=It[t.acmod]+t.lfeon;if(t.numDepSub>0){const e=[2,2,1,1,2,2,2,1,1];for(let r=0;r<9;r++)t.chanLoc&1<<8-r&&(i+=e[r])}return i},Ft=[0,8e3,16e3,32e3,0,0,11025,22050,44100,0,0,12e3,24e3,48e3,96e3,192e3],At=[32e3,56e3,64e3,96e3,112e3,128e3,192e3,224e3,256e3,32e4,384e3,448e3,512e3,576e3,64e4,768e3,96e4,1024e3,1152e3,128e4,1344e3,1408e3,1411200,1472e3,1536e3,192e4,2048e3,3072e3,384e4,0,0,0],Dt=[16,16,20,20,0,24,24,0],Mt=[1,2,2,2,2,3,3,4,4,5,6,6,6,7,8,8],Nt=[1,2,2,2,2,3,18,19,6,7,518,323,83,519,582,535],Ot=[32e3,44100,48e3,0],Lt=[8e3,16e3,32e3,64e3,128e3,22050,44100,88200,176400,352800,12e3,24e3,48e3,96e3,192e3,384e3],zt=[512,1024,2048,4096],Ut=e=>{const t=Wt(e),i=f(e);let r=t?4*Math.ceil(t.frameSize/4):0,a=null;for(;r+4<=e.length&&1683496997===i.getUint32(r);){const t=Ht(e.subarray(r));if(!t)break;a??(a=t),r+=t.frameSize}if(t)return{frameSize:a?r:t.frameSize,sampleRate:t.sampleRate,numberOfChannels:t.numberOfChannels,sampleCount:t.sampleCount,channelLayout:t.channelLayout,pcmResolution:t.pcmResolution,bitRate:t.bitRate,core:t,hasExtensions:null!==a};if(!a?.asset)return null;const{asset:s}=a;return{frameSize:r,sampleRate:s.sampleRate,numberOfChannels:s.numberOfChannels,sampleCount:s.sampleCount,channelLayout:s.channelLayout,pcmResolution:s.pcmResolution,bitRate:0,core:null,hasExtensions:!0}},qt=e=>{const t=Ut(e);return t?.core?t.hasExtensions?"dtsh":"dtsc":null},Wt=e=>{if(e.length<18)return null;if(127!==e[0]||254!==e[1]||128!==e[2]||1!==e[3])return null;const t=new Ce(e);if(t.skipBits(32),t.skipBits(1),31!==t.readBits(5))return null;const i=t.readBits(1),r=t.readBits(7)+1;if(r%8!==0)return null;const a=t.readBits(14)+1;if(a<96)return null;const s=t.readBits(6);if(s>=Mt.length)return null;const n=Ft[t.readBits(4)];if(0===n)return null;const o=At[t.readBits(5)];if(0!==t.readBits(1))return null;t.skipBits(4),t.skipBits(5);const c=t.readBits(2);if(3===c)return null;t.skipBits(1),i&&t.skipBits(16),t.skipBits(7);const l=Dt[t.readBits(3)];if(0===l)return null;const u=0!==c;return{frameSize:a,sampleRate:n,numberOfChannels:Mt[s]+(u?1:0),sampleCount:32*r,channelLayout:Nt[s]|(u?8:0),amode:s,lfePresent:u,bitRate:o,pcmResolution:l}},Ht=e=>{if(e.length<10)return null;if(100!==e[0]||88!==e[1]||32!==e[2]||37!==e[3])return null;const t=new Ce(e);t.skipBits(32),t.skipBits(8);const i=t.readBits(2),r=t.readBits(1),a=8+4*r,s=16+4*r;t.skipBits(a);const n=t.readBits(s)+1,o={frameSize:n,asset:null};if(!t.readBits(1))return o;const c=Ot[t.readBits(2)],l=512*(t.readBits(3)+1);t.readBits(1)&&t.skipBits(36);const u=t.readBits(3)+1,d=t.readBits(3)+1,h=[];for(let k=0;k2&&t.skipBits(1),p>6&&t.skipBits(1),t.readBits(1))){const e=t.readBits(2)+1<<2;g=t.readBits(e)}return 0===c||t.getBitsLeft()<0?o:{frameSize:n,asset:{sampleRate:m,numberOfChannels:p,sampleCount:Math.round(l*m/c),channelLayout:g,pcmResolution:f}}},Vt=e=>K(e)+K(44646&e),jt=["avc","hevc","vp9","av1","vp8","prores"],Kt=["pcm-s16","pcm-s16be","pcm-s24","pcm-s24be","pcm-s32","pcm-s32be","pcm-f32","pcm-f32be","pcm-f64","pcm-f64be","pcm-u8","pcm-s8","ulaw","alaw"],Xt=["aac","opus","mp3","vorbis","flac","ac3","eac3","dts",...Kt],$t=[{maxMacroblocks:99,maxBitrate:64e3,maxDpbMbs:396,level:10},{maxMacroblocks:396,maxBitrate:192e3,maxDpbMbs:900,level:11},{maxMacroblocks:396,maxBitrate:384e3,maxDpbMbs:2376,level:12},{maxMacroblocks:396,maxBitrate:768e3,maxDpbMbs:2376,level:13},{maxMacroblocks:396,maxBitrate:2e6,maxDpbMbs:2376,level:20},{maxMacroblocks:792,maxBitrate:4e6,maxDpbMbs:4752,level:21},{maxMacroblocks:1620,maxBitrate:4e6,maxDpbMbs:8100,level:22},{maxMacroblocks:1620,maxBitrate:1e7,maxDpbMbs:8100,level:30},{maxMacroblocks:3600,maxBitrate:14e6,maxDpbMbs:18e3,level:31},{maxMacroblocks:5120,maxBitrate:2e7,maxDpbMbs:20480,level:32},{maxMacroblocks:8192,maxBitrate:2e7,maxDpbMbs:32768,level:40},{maxMacroblocks:8192,maxBitrate:5e7,maxDpbMbs:32768,level:41},{maxMacroblocks:8704,maxBitrate:5e7,maxDpbMbs:34816,level:42},{maxMacroblocks:22080,maxBitrate:135e6,maxDpbMbs:110400,level:50},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:51},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:52},{maxMacroblocks:139264,maxBitrate:24e7,maxDpbMbs:696320,level:60},{maxMacroblocks:139264,maxBitrate:48e7,maxDpbMbs:696320,level:61},{maxMacroblocks:139264,maxBitrate:8e8,maxDpbMbs:696320,level:62}],Gt=[{maxPictureSize:36864,maxBitrate:2e5,level:10},{maxPictureSize:73728,maxBitrate:8e5,level:11},{maxPictureSize:122880,maxBitrate:18e5,level:20},{maxPictureSize:245760,maxBitrate:36e5,level:21},{maxPictureSize:552960,maxBitrate:72e5,level:30},{maxPictureSize:983040,maxBitrate:12e6,level:31},{maxPictureSize:2228224,maxBitrate:18e6,level:40},{maxPictureSize:2228224,maxBitrate:3e7,level:41},{maxPictureSize:8912896,maxBitrate:6e7,level:50},{maxPictureSize:8912896,maxBitrate:12e7,level:51},{maxPictureSize:8912896,maxBitrate:18e7,level:52},{maxPictureSize:35651584,maxBitrate:18e7,level:60},{maxPictureSize:35651584,maxBitrate:24e7,level:61},{maxPictureSize:35651584,maxBitrate:48e7,level:62}],Qt=".01.01.01.01.00",Yt=".0.110.01.01.01.0",Jt=["ap4x","ap4h","apch","apcn","apcs","apco"],Zt=["dtsc","dtsh","dtsl","dtse"],ei=e=>{const{codec:t,codecDescription:i,colorSpace:r,avcCodecInfo:a,hevcCodecInfo:s,vp9CodecInfo:o,av1CodecInfo:l,proresFormat:u}=e;if("avc"===t){if(n(null!==e.avcType),a){const t=new Uint8Array([a.avcProfileIndication,a.profileCompatibility,a.avcLevelIndication]);return`avc${e.avcType}.${C(t)}`}if(!i||i.byteLength<4)throw new TypeError("AVC decoder description is not provided or is not at least 4 bytes long.");return`avc${e.avcType}.${C(i.subarray(1,4))}`}if("hevc"===t){let e,t,r,a,n,o;if(s)e=s.generalProfileSpace,t=s.generalProfileIdc,r=B(s.generalProfileCompatibilityFlags),a=s.generalTierFlag,n=s.generalLevelIdc,o=[...s.generalConstraintIndicatorFlags];else{if(!i||i.byteLength<23)throw new TypeError("HEVC decoder description is not provided or is not at least 23 bytes long.");const s=f(i),c=s.getUint8(1);e=c>>6&3,t=31&c,r=B(s.getUint32(2)),a=c>>5&1,n=s.getUint8(12),o=[];for(let e=0;e<6;e++)o.push(s.getUint8(6+e))}let c="hev1.";for(c+=["","A","B","C"][e]+t,c+=".",c+=r.toString(16).toUpperCase(),c+=".",c+=0===a?"L":"H",c+=n;o.length>0&&0===o[o.length-1];)o.pop();return o.length>0&&(c+=".",c+=o.map(e=>e.toString(16).toUpperCase()).join(".")),c}if("vp8"===t)return"vp8";if("vp9"===t){if(!o){const t=e.width*e.height;let i=c(Gt).level;for(const e of Gt)if(t<=e.maxPictureSize){i=e.level;break}return`vp09.00.${i.toString().padStart(2,"0")}.08`}let t=`vp09.${o.profile.toString().padStart(2,"0")}.${o.level.toString().padStart(2,"0")}.${o.bitDepth.toString().padStart(2,"0")}.${o.chromaSubsampling.toString().padStart(2,"0")}`;return t+=`.${o.colourPrimaries.toString().padStart(2,"0")}.${o.transferCharacteristics.toString().padStart(2,"0")}.${o.matrixCoefficients.toString().padStart(2,"0")}.${o.videoFullRangeFlag.toString().padStart(2,"0")}`,t.endsWith(Qt)&&(t=t.slice(0,-15)),t}if("av1"===t){if(!l){const t=e.width*e.height;let i=c(Gt).level;for(const e of Gt)if(t<=e.maxPictureSize){i=e.level;break}return`av01.0.${i.toString().padStart(2,"0")}M.08`}const t=l.profile,i=l.level.toString().padStart(2,"0"),a=l.tier?"H":"M",s=l.bitDepth.toString().padStart(2,"0"),n=l.monochrome?"1":"0",o=100*l.chromaSubsamplingX+10*l.chromaSubsamplingY+1*(l.chromaSubsamplingX&&l.chromaSubsamplingY?l.chromaSamplePosition:0),u=r?.primaries?g[r.primaries]:1,d=r?.transfer?y[r.transfer]:1,h=r?.matrix?w[r.matrix]:1,f=r?.fullRange?1:0;let m=`av01.${t}.${i}${a}.${s}`;return m+=`.${n}.${o.toString().padStart(3,"0")}`,m+=`.${u.toString().padStart(2,"0")}`,m+=`.${d.toString().padStart(2,"0")}`,m+=`.${h.toString().padStart(2,"0")}`,m+=`.${f}`,m.endsWith(Yt)&&(m=m.slice(0,-17)),m}if("prores"===t)return u??"apch";throw null!==t&&N(t),new TypeError(`Unhandled codec '${t}'.`)},ti=e=>{switch(e.codec){case"avc":{let t=e.avcCodecInfo?.sequenceParameterSets[0];if(!t&&e.codecDescription&&(t=Ge(e.codecDescription)?.sequenceParameterSets[0]),t){const e=Ye(t);if(e)return{primaries:k[e.colourPrimaries],transfer:b[e.transferCharacteristics],matrix:T[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"hevc":{let t=e.hevcCodecInfo?.arrays.find(e=>e.nalUnitType===Oe.SPS_NUT)?.nalUnits[0];if(!t&&e.codecDescription&&(t=(e=>{try{const t=f(e);let i=0;const r=t.getUint8(i++),a=t.getUint8(i++),s=a>>6&3,n=a>>5&1,o=31&a,c=t.getUint32(i,!1);i+=4;const l=e.subarray(i,i+6);i+=6;const u=t.getUint8(i++),d=(15&t.getUint8(i++))<<8|t.getUint8(i++),h=3&t.getUint8(i++),m=3&t.getUint8(i++),p=7&t.getUint8(i++),g=7&t.getUint8(i++),k=t.getUint16(i,!1);i+=2;const y=t.getUint8(i++),b=y>>6&3,w=y>>3&7,T=y>>2&1,S=3&y,v=t.getUint8(i++),P=[];for(let f=0;f>7&1,s=63&r,n=t.getUint16(i,!1);i+=2;const o=[];for(let c=0;ce.nalUnitType===Oe.SPS_NUT)?.nalUnits[0]),t){const e=it(t);if(e)return{primaries:k[e.colourPrimaries],transfer:b[e.transferCharacteristics],matrix:T[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"vp8":break;case"vp9":if(e.vp9CodecInfo)return{primaries:k[e.vp9CodecInfo.colourPrimaries],transfer:b[e.vp9CodecInfo.transferCharacteristics],matrix:T[e.vp9CodecInfo.matrixCoefficients],fullRange:!!e.vp9CodecInfo.videoFullRangeFlag};break;case"av1":if(e.av1CodecInfo)return{primaries:k[e.av1CodecInfo.colourPrimaries],transfer:b[e.av1CodecInfo.transferCharacteristics],matrix:T[e.av1CodecInfo.matrixCoefficients],fullRange:!!e.av1CodecInfo.videoFullRangeFlag};break;case"prores":if(e.proresCodecInfo)return{primaries:k[e.proresCodecInfo.colourPrimaries],transfer:b[e.proresCodecInfo.transferCharacteristics],matrix:T[e.proresCodecInfo.matrixCoefficients],fullRange:e.proresCodecInfo.fullRange}}return{primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0}},ii=e=>{const{codec:t,codecDescription:i,aacCodecInfo:r,dtsFormat:a}=e;if("aac"===t){if(!r)throw new TypeError("AAC codec info must be provided.");if(r.isMpeg2)return"mp4a.67";{let e;if(null!==r.objectType)e=r.objectType;else{e=_e(i).objectType}return`mp4a.40.${e}`}}if("mp3"===t)return"mp3";if("opus"===t)return"opus";if("vorbis"===t)return"vorbis";if("flac"===t)return"flac";if("ac3"===t)return"ac-3";if("eac3"===t)return"ec-3";if("dts"===t)return a??"dtsc";if(t&&Kt.includes(t))return t;throw new TypeError(`Unhandled codec '${t}'.`)},ri=48e3,ai=/^pcm-([usf])(\d+)(be)?$/,si=e=>{if(n(Kt.includes(e)),"ulaw"===e)return{dataType:"ulaw",sampleSize:1,littleEndian:!0,silentValue:255};if("alaw"===e)return{dataType:"alaw",sampleSize:1,littleEndian:!0,silentValue:213};const t=ai.exec(e);let i;n(t),i="u"===t[1]?"unsigned":"s"===t[1]?"signed":"float";return{dataType:i,sampleSize:Number(t[2])/8,littleEndian:"be"!==t[3],silentValue:"pcm-u8"===e?128:0}},ni=e=>e.startsWith("avc1")||e.startsWith("avc3")?"avc":e.startsWith("hev1")||e.startsWith("hvc1")?"hevc":"vp8"===e?"vp8":e.startsWith("vp09")?"vp9":e.startsWith("av01")?"av1":Jt.includes(e)?"prores":"mp3"===e||"mp4a.69"===e||"mp4a.6B"===e||"mp4a.6b"===e||"mp4a.40.34"===e?"mp3":e.startsWith("mp4a.40.")||"mp4a.67"===e?"aac":"opus"===e?"opus":"vorbis"===e?"vorbis":"flac"===e?"flac":"ac-3"===e||"ac3"===e?"ac3":"ec-3"===e||"eac3"===e?"eac3":Zt.includes(e)?"dts":"ulaw"===e?"ulaw":"alaw"===e?"alaw":ai.test(e)?e:"webvtt"===e?"webvtt":null,oi=[44100,48e3,32e3],ci=[-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],li=1483304551,ui=1231971951,di=(e,t)=>3===e?3===t?21:36:3===t?13:21,hi=(e,t)=>{const i=e>>>24,r=e>>>16&255,a=e>>>8&255,s=255&e;if(255!==i&&255!==r&&255!==a&&255!==s)return{header:null,bytesAdvanced:4};if(255!==i)return{header:null,bytesAdvanced:1};if(224!==(224&r))return{header:null,bytesAdvanced:1};let n=0,o=0;16&r?n=8&r?0:1:(n=1,o=1);const c=r>>3&3,l=r>>1&3,u=(a>>2&3)%3,d=s>>6&3,h=s>>4&3,f=s>>3&1,m=s>>2&1,p=3&s,g=ci[16*n*4+16*l+(a>>4&15)];if(-1===g)return{header:null,bytesAdvanced:1};const k=1e3*g,y=oi[u]>>n+o,b=((e,t,i,r,a)=>0===t?0:1===t?Math.floor(144*i/(r<>1&1);if(null!==t&&t{let t=2130706432,i=0;for(;0!==t;)i>>=1,i|=e&t,t>>=8;return i};var mi,pi;(pi=mi||(mi={}))[pi.FrameCount=1]="FrameCount",pi[pi.FileSize=2]="FileSize",pi[pi.Toc=4]="Toc";const gi=e=>3===e?1:2;class ki{constructor(e){this.input=e}dispose(){}}const yi=new Uint8Array(0);class bi{constructor(e,t,i,r,a=-1,s,n){if(this.data=e,this.type=t,this.timestamp=i,this.duration=r,this.sequenceNumber=a,e===yi&&void 0===s)throw new Error("Internal error: byteLength must be explicitly provided when constructing metadata-only packets.");if(void 0===s&&(s=e.byteLength),!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("key"!==t&&"delta"!==t)throw new TypeError('type must be either "key" or "delta".');if(!Number.isFinite(i))throw new TypeError("timestamp must be a number.");if(!Number.isFinite(r)||r<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(a))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(s)||s<0)throw new TypeError("byteLength must be a non-negative integer.");if(void 0!==n&&("object"!==typeof n||!n))throw new TypeError("sideData, when provided, must be an object.");if(void 0!==n?.alpha&&!(n.alpha instanceof Uint8Array))throw new TypeError("sideData.alpha, when provided, must be a Uint8Array.");if(void 0!==n?.alphaByteLength&&(!Number.isInteger(n.alphaByteLength)||n.alphaByteLength<0))throw new TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=s,this.sideData=n??{},this.sideData.alpha&&void 0===this.sideData.alphaByteLength&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}get isMetadataOnly(){return this.data===yi}get microsecondTimestamp(){return Math.trunc(G*this.timestamp)}get microsecondDuration(){return Math.trunc(G*this.duration)}toEncodedVideoChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}alphaToEncodedVideoChunk(e=this.type){if(!this.sideData.alpha)throw new TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.sideData.alpha,type:e,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}toEncodedAudioChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to an audio chunk.");if("undefined"===typeof EncodedAudioChunk)throw new Error("EncodedAudioChunk is not available in this environment.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}static fromEncodedChunk(e,t){if(!(e instanceof EncodedVideoChunk||e instanceof EncodedAudioChunk))throw new TypeError("chunk must be an EncodedVideoChunk or EncodedAudioChunk.");const i=new Uint8Array(e.byteLength);return e.copyTo(i),new bi(i,e.type,e.timestamp/1e6,(e.duration??0)/1e6,void 0,void 0,t)}clone(e){if(void 0!==e&&("object"!==typeof e||null===e))throw new TypeError("options, when provided, must be an object.");if(void 0!==e?.data&&!(e.data instanceof Uint8Array))throw new TypeError("options.data, when provided, must be a Uint8Array.");if(void 0!==e?.type&&"key"!==e.type&&"delta"!==e.type)throw new TypeError('options.type, when provided, must be either "key" or "delta".');if(void 0!==e?.timestamp&&!Number.isFinite(e.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(void 0!==e?.duration&&!Number.isFinite(e.duration))throw new TypeError("options.duration, when provided, must be a number.");if(void 0!==e?.sequenceNumber&&!Number.isFinite(e.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(void 0!==e?.sideData&&("object"!==typeof e.sideData||null===e.sideData))throw new TypeError("options.sideData, when provided, must be an object.");return new bi(e?.data??this.data,e?.type??this.type,e?.timestamp??this.timestamp,e?.duration??this.duration,e?.sequenceNumber??this.sequenceNumber,this.byteLength,e?.sideData??this.sideData)}}const wi=e=>{const t=f(e);let i=0;const r=t.getUint8(i);i+=1,i+=3;const a=C(e.subarray(i,i+16));i+=16;let s=null;if(r>0){const r=t.getUint32(i);if(i+=4,r>0){s=[];for(let t=0;te.systemId===t.systemId&&((e,t)=>{if(e.length!==t.length)return!1;for(let i=0;i{let t=Io(e);const i=Do(e,4);let r=8;1===t&&(t=Eo(e),r=16);const a=t-r;return a<0?null:{name:i,totalSize:t,headerSize:r,contentSize:a}},vi=e=>Co(e)/65536,Pi=e=>Co(e)/1073741824,Ii=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=bo(e);if(t|=127&i,0===(128&i))break}return t},xi=e=>{let t=To(e);return e.skip(2),t=Math.min(t,e.remainingLength),m.decode(yo(e,t))},Ci=e=>{const t=Si(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=Io(e);e.skip(4);const r=yo(e,t.contentSize-8);switch(i){case 1:return m.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new Pe(r,"image/jpeg");case 14:return new Pe(r,"image/png");case 27:return new Pe(r,"image/bmp");default:return r}},Bi=16,Ei=new Uint32Array(256),_i=new Uint32Array(256),Ri=new Uint32Array(256),Fi=new Uint32Array(256),Ai=new Uint32Array(256),Di=new Uint32Array(256),Mi=new Uint32Array(10);let Ni=!1;class Oi{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(Bi/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(Bi),this.out=new Uint8Array(Bi),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){n(16===e.byteLength),n(16===t.byteLength),Ni||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,n=1;s<256;s++)i[s]=n,t[n]=s,n=n^n<<1^(128&n?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let a=r^r<<1^r<<2^r<<3^r<<4;a=a>>>8^255&a^99,e[s]=a}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);Ei[s]=t<<24|t<<16|t<<8|t,Di[s]=i<<24|i<<16|i<<8|i;const a=r(i,14)<<24|r(i,9)<<16|r(i,13)<<8|r(i,11);_i[s]=a,Ri[s]=a>>>8|a<<24,Fi[s]=a>>>16|a<<16,Ai[s]=a>>>24|a<<8}let a=1;for(let s=0;s<10;s++)Mi[s]=a<<24,a=a<<1^(128&a?283:0);Ni=!0})();const i=new DataView(e.buffer,e.byteOffset,e.byteLength),r=new DataView(t.buffer,t.byteOffset,t.byteLength);this.roundkey[0]=i.getUint32(0,!1),this.roundkey[1]=i.getUint32(4,!1),this.roundkey[2]=i.getUint32(8,!1),this.roundkey[3]=i.getUint32(12,!1),this.iv[0]=r.getUint32(0,!1),this.iv[1]=r.getUint32(4,!1),this.iv[2]=r.getUint32(8,!1),this.iv[3]=r.getUint32(12,!1);for(let a=4;a<44;a+=4){const e=this.roundkey[a-1];this.roundkey[a]=this.roundkey[a-4]^4278190080&Ei[e>>>16&255]^16711680&Ei[e>>>8&255]^65280&Ei[e>>>0&255]^255&Ei[e>>>24&255]^Mi[a/4-1],this.roundkey[a+1]=this.roundkey[a-3]^this.roundkey[a],this.roundkey[a+2]=this.roundkey[a-2]^this.roundkey[a+1],this.roundkey[a+3]=this.roundkey[a-1]^this.roundkey[a+2]}for(let a=0,s=40;a>>24&255]]^Ri[255&Ei[t>>>16&255]]^Fi[255&Ei[t>>>8&255]]^Ai[255&Ei[t>>>0&255]]}}decrypt(){let e=this.inView.getUint32(0,!1)^this.roundkey[0],t=this.inView.getUint32(4,!1)^this.roundkey[1],i=this.inView.getUint32(8,!1)^this.roundkey[2],r=this.inView.getUint32(12,!1)^this.roundkey[3];const a=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),n=this.inView.getUint32(8,!1),o=this.inView.getUint32(12,!1);let c,l,u,d;for(let g=1;g<10;g++){const a=4*g;c=_i[e>>>24]^Ri[r>>>16&255]^Fi[i>>>8&255]^Ai[255&t]^this.roundkey[a],l=_i[t>>>24]^Ri[e>>>16&255]^Fi[r>>>8&255]^Ai[255&i]^this.roundkey[a+1],u=_i[i>>>24]^Ri[t>>>16&255]^Fi[e>>>8&255]^Ai[255&r]^this.roundkey[a+2],d=_i[r>>>24]^Ri[i>>>16&255]^Fi[t>>>8&255]^Ai[255&e]^this.roundkey[a+3],e=c,t=l,i=u,r=d}const h=4278190080&Di[e>>>24&255]^16711680&Di[r>>>16&255]^65280&Di[i>>>8&255]^255&Di[t>>>0&255]^this.roundkey[40],f=4278190080&Di[t>>>24&255]^16711680&Di[e>>>16&255]^65280&Di[r>>>8&255]^255&Di[i>>>0&255]^this.roundkey[41],m=4278190080&Di[i>>>24&255]^16711680&Di[t>>>16&255]^65280&Di[e>>>8&255]^255&Di[r>>>0&255]^this.roundkey[42],p=4278190080&Di[r>>>24&255]^16711680&Di[i>>>16&255]^65280&Di[t>>>8&255]^255&Di[e>>>0&255]^this.roundkey[43];this.outView.setUint32(0,h^this.iv[0],!1),this.outView.setUint32(4,f^this.iv[1],!1),this.outView.setUint32(8,m^this.iv[2],!1),this.outView.setUint32(12,p^this.iv[3],!1),this.iv[0]=a,this.iv[1]=s,this.iv[2]=n,this.iv[3]=o}}class Li extends ki{constructor(e){super(e),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=e._reader}async getTrackBackings(){return await this.readMetadata(),this.tracks.map(e=>e.trackBacking)}async getMimeType(){await this.readMetadata();const e=await this.getTrackBackings(),t=await Promise.all(e.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isQuickTime?"quicktime":"mp4");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(e=>"video"===e.info?.type),hasAudio:this.tracks.some(e=>"audio"===e.info?.type),codecStrings:t.filter(Boolean)})}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=0,t=!1,i=!1;for(;;){let r=this.reader.requestSliceRange(e,8,16);if(ce(r)&&(r=await r),!r)break;const a=e,s=Si(r);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=Do(r,4);this.isQuickTime="qt "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(r.filePos,s.contentSize);if(ce(e)&&(e=await e),!e)break;this.moovSlice=e,this.readContiguousBoxes(this.moovSlice);for(const t of this.tracks){const e=t.editListPreviousSegmentDurations/this.movieTimescale;t.editListOffset-=Math.round(e*t.timescale)}t=this.isFragmented&&null!==this.reader.fileSize&&this.reader.fileSize>a+s.totalSize,i=!0;break}if("moof"===s.name){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');await this.copyMetadataFromInitInput(this.input._initInput),t=!1,i=!0;break}}e=a+s.totalSize}if(!i&&this.input._initInput&&await this.copyMetadataFromInitInput(this.input._initInput),t){n(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);ce(e)&&(e=await e),n(e);const t=Io(e),i=this.reader.fileSize-t;if(i>=0&&i<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(i,8,16);if(ce(e)&&(e=await e),e){const t=Si(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);ce(i)&&(i=await i),i&&this.readContiguousBoxes(i)}}}}})())}async copyMetadataFromInitInput(e){const t=await e._getDemuxer();if(t.constructor!==Li)throw new Error("Init input must match the input's format.");await t.readMetadata(),this.movieTimescale=t.movieTimescale,this.movieDurationInTimescale=t.movieDurationInTimescale,this.metadataTags=t.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=t.fragmentTrackDefaults,this.psshBoxes=t.psshBoxes;for(const i of t.tracks){const e={id:i.id,demuxer:this,trackBacking:null,disposition:i.disposition,timescale:i.timescale,durationInMediaTimescale:i.durationInMediaTimescale,durationInMovieTimescale:i.durationInMovieTimescale,rotation:i.rotation,internalCodecId:i.internalCodecId,name:i.name,languageCode:i.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:i.editListPreviousSegmentDurations,editListOffset:i.editListOffset,encryptionInfo:i.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:i.info};if(i.trackBacking)if(n(e.info),"video"===e.info.type&&-1!==e.info.width){const t=e;e.trackBacking=new Ui(t),this.tracks.push(e)}else if("audio"===e.info.type&&-1!==e.info.numberOfChannels){const t=e;e.trackBacking=new qi(t),this.tracks.push(e)}}}getSampleTableForTrack(e){if(e.sampleTable)return e.sampleTable;const t={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=t,null===e.sampleTableByteOffset)return t;n(this.moovSlice);const i=this.moovSlice.slice(e.sampleTableByteOffset);this.currentTrack=e,this.traverseBox(i),this.currentTrack=null;if("audio"===e.info?.type&&e.info.codec&&Kt.includes(e.info.codec)&&0===t.sampleCompositionTimeOffsets.length){n("audio"===e.info?.type);const i=si(e.info.codec),r=[],a=[];for(let s=0;se.startIndex),d=t.sampleTimingEntries[u],h=_(t.sampleTimingEntries,l,e=>e.startIndex),f=t.sampleTimingEntries[h],m=d.startDecodeTimestamp+(o-d.startIndex)*d.delta,p=f.startDecodeTimestamp+(l-f.startIndex)*f.delta-m,g=c(r);g&&g.delta===p?g.count++:r.push({startIndex:n.startChunkIndex+s,startDecodeTimestamp:m,count:1,delta:p});const k=n.samplesPerChunk*i.sampleSize*e.info.numberOfChannels;a.push(k)}n.startSampleIndex=n.startChunkIndex,n.samplesPerChunk=1}t.sampleTimingEntries=r,t.sampleSizes=a}if(t.sampleCompositionTimeOffsets.length>0){t.presentationTimestamps=[];for(const e of t.sampleTimingEntries)for(let i=0;ie.presentationTimestamp-t.presentationTimestamp),t.presentationTimestampIndexMap=Array(t.presentationTimestamps.length).fill(-1);for(let e=0;ee.moofOffset===a.moofOffset);if(i)Ki(s,i.timestamp);else{const e=_(t,a.moofOffset-1,e=>e.moofOffset);if(-1!==e){const i=t[e];Ki(s,i.endTimestamp)}}s.startTimestampIsFinal=!0}const i=_(t,s.startTimestamp,e=>e.startTimestamp);if(-1!==i&&t[i].moofOffset===a.moofOffset||t.splice(i+1,0,{moofOffset:a.moofOffset,startTimestamp:s.startTimestamp,endTimestamp:s.endTimestamp}),s.encryptionAuxInfo&&e.encryptionInfo){const t=await Qi(this.reader,e.encryptionInfo,s.encryptionAuxInfo);for(let e=0;e0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;$(t.languageCode)||(t.languageCode=q)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=Do(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:{...v},avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:"soun"===i&&(t.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const t=this.currentTrack;if(!t)break;t.sampleTableByteOffset=K,this.readContiguousBoxes(e.slice(G,X.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=bo(e);e.skip(3);const r=Io(e);for(let a=0;a0&&(1===n?(e.skip(4),c=8*Io(e),e.skip(8)):2===n&&(e.skip(4),l=Ao(e),o=Io(e),e.skip(4),c=Io(e),u=Io(e),e.skip(8))),t.info.numberOfChannels=o,t.info.sampleRate=l,t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+a.totalSize-e.filePos));const d="enca"===s?t.frmaCodecString:s;if(t.frmaCodecString=null,"mp4a"===d);else if("opus"===d)t.info.codec="opus",t.info.sampleRate=ri;else if("flac"===d)t.info.codec="flac";else if("ulaw"===d)t.info.codec="ulaw";else if("alaw"===d)t.info.codec="alaw";else if("ac-3"===d)t.info.codec="ac3";else if("ec-3"===d)t.info.codec="eac3";else if(Zt.includes(d))t.info.codec="dts",t.info.dtsFormat=d;else if("twos"===d)8===c?t.info.codec="pcm-s8":16===c?t.info.codec=t.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(ve._warn(`Unsupported sample size ${c} for codec 'twos'.`),t.info.codec=null);else if("sowt"===d)8===c?t.info.codec="pcm-s8":16===c?t.info.codec="pcm-s16":(ve._warn(`Unsupported sample size ${c} for codec 'sowt'.`),t.info.codec=null);else if("raw "===d)t.info.codec="pcm-u8";else if("in24"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if("in32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if("fl32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if("fl64"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if("ipcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?16===e?t.info.codec="pcm-s16":24===e?t.info.codec="pcm-s24":32===e?t.info.codec="pcm-s32":(ve._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null):16===e?t.info.codec="pcm-s16be":24===e?t.info.codec="pcm-s24be":32===e?t.info.codec="pcm-s32be":(ve._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null)}else if("fpcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?32===e?t.info.codec="pcm-f32":64===e?t.info.codec="pcm-f64":(ve._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(ve._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===d&&null!==u){const e=c+7>>3,i=Boolean(1&u),r=Boolean(2&u),a=4&u?-1:0;c>0&&c<=64&&(i?32===c&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):a&1<0?(t.encryptionInfo.defaultCryptByteBlock=r>>4,t.encryptionInfo.defaultSkipByteBlock=15&r):(t.encryptionInfo.defaultCryptByteBlock=0,t.encryptionInfo.defaultSkipByteBlock=0),t.encryptionInfo.defaultIsProtected=0!==bo(e),t.encryptionInfo.defaultPerSampleIvSize=bo(e),t.encryptionInfo.defaultKid=C(yo(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=bo(e),r=new Uint8Array(16);r.set(yo(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(n(t.info),0===X.contentSize)break;t.info.codecDescription=yo(e,X.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(n(t.info),0===X.contentSize)break;t.info.codecDescription=yo(e,X.contentSize)}break;case"vpcC":{const t=this.currentTrack;if(!t)break;n("video"===t.info?.type),e.skip(4);const i=bo(e),r=bo(e),a=bo(e),s=a>>4,o=a>>1&7,c=1&a,l=bo(e),u=bo(e),d=bo(e);t.info.vp9CodecInfo={profile:i,level:r,bitDepth:s,chromaSubsampling:o,videoFullRangeFlag:c,colourPrimaries:l,transferCharacteristics:u,matrixCoefficients:d}}break;case"av1C":{const t=this.currentTrack;if(!t)break;n("video"===t.info?.type),e.skip(1);const i=bo(e),r=i>>5,a=31&i,s=bo(e),o=s>>7,c=s>>6&1,l=s>>4&1,u=s>>3&1,d=s>>2&1,h=3&s,f=2===r&&c?s>>5&1?12:10:c?10:8;e.skip(1);const m=yo(e,X.contentSize-4),p=kt(m);t.info.av1CodecInfo={profile:r,level:a,tier:o,bitDepth:f,monochrome:l,chromaSubsamplingX:u,chromaSubsamplingY:d,chromaSamplePosition:h,videoFullRangeFlag:p?.videoFullRangeFlag??0,colourPrimaries:p?.colourPrimaries??2,transferCharacteristics:p?.transferCharacteristics??2,matrixCoefficients:p?.matrixCoefficients??2}}break;case"colr":{const t=this.currentTrack;if(!t)break;n("video"===t.info?.type);const i=Do(e,4);if("nclx"!==i&&"nclc"!==i)break;const r=To(e),a=To(e),s=To(e);let o;"nclx"===i&&(o=Boolean(128&bo(e))),t.info.colorSpace={primaries:k[r],transfer:b[a],matrix:T[s],fullRange:o}}break;case"pasp":{const t=this.currentTrack;if(!t)break;n("video"===t.info?.type);const i=Io(e),r=Io(e);i>0&&r>0&&(i>r?t.info.squarePixelWidth=Math.round(t.info.width*i/r):t.info.squarePixelHeight=Math.round(t.info.height*r/i))}break;case"esds":{const t=this.currentTrack;if(!t||"audio"!==t.info?.type)break;e.skip(4);n(3===bo(e)),Ii(e),e.skip(2);const i=bo(e),r=0!==(64&i),a=0!==(32&i);if(0!==(128&i)&&e.skip(2),r){const t=bo(e);e.skip(t)}a&&e.skip(2);n(4===bo(e));const s=Ii(e),o=e.filePos,c=bo(e);if(64===c||103===c?(t.info.codec="aac",t.info.aacCodecInfo={isMpeg2:103===c,objectType:null}):105===c||107===c?t.info.codec="mp3":221===c?t.info.codec="vorbis":169===c?t.info.codec="dts":ve._warn(`Unsupported audio codec (objectTypeIndication ${c}) - discarding track.`),e.skip(12),s>e.filePos-o){n(5===bo(e));const i=Ii(e);if(t.info.codecDescription=yo(e,i),"aac"===t.info.codec){const e=_e(t.info.codecDescription);null!==e.outputNumberOfChannels&&(t.info.numberOfChannels=e.outputNumberOfChannels),null!==e.outputSampleRate&&(t.info.sampleRate=e.outputSampleRate)}}}break;case"enda":{const t=this.currentTrack;if(!t)break;n("audio"===t.info?.type),t.info.pcmLittleEndian=!!(255&To(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;n("audio"===t.info?.type),e.skip(4);const i=bo(e);t.info.pcmLittleEndian=Boolean(1&i),t.info.pcmSampleSize=bo(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;n("audio"===t.info?.type),e.skip(1);const i=bo(e),r=To(e),a=Io(e),s=vo(e),o=bo(e);let c;c=0!==o?yo(e,2+i):new Uint8Array(0);const l=new Uint8Array(19+c.byteLength),u=new DataView(l.buffer);u.setUint32(0,1332770163,!1),u.setUint32(4,1214603620,!1),u.setUint8(8,1),u.setUint8(9,i),u.setUint16(10,r,!0),u.setUint32(12,a,!0),u.setInt16(16,s,!0),u.setUint8(18,o),l.set(c,19),t.info.codecDescription=l,t.info.numberOfChannels=i}break;case"dfLa":{const t=this.currentTrack;if(!t)break;n("audio"===t.info?.type),e.skip(4);const i=127,r=128,a=e.filePos;for(;e.filePos>>12,a=1+(i>>9&7);t.info.sampleRate=r,t.info.numberOfChannels=a,e.skip(20)}else e.skip(s);if(a&r)break}const s=e.filePos;e.filePos=a;const o=yo(e,s-a),c=new Uint8Array(4+o.byteLength);new DataView(c.buffer).setUint32(0,1716281667,!1),c.set(o,4),t.info.codecDescription=c}break;case"dac3":{const t=this.currentTrack;if(!t)break;n("audio"===t.info?.type);const i=yo(e,3),r=new Ce(i),a=r.readBits(2);r.skipBits(8);const s=r.readBits(3),o=r.readBits(1);a<3&&(t.info.sampleRate=Ae[a]),t.info.numberOfChannels=It[s]+o}break;case"dec3":{const t=this.currentTrack;if(!t)break;n("audio"===t.info?.type);const i=(e=>{if(e.length<2)return null;const t=new Ce(e),i=t.readBits(13),r=t.readBits(3),a=[];for(let s=0;s<=r&&!(Math.ceil(t.pos/8)+3>e.length);s++){const e=t.readBits(2),i=t.readBits(5);t.skipBits(1),t.skipBits(1);const r=t.readBits(3),s=t.readBits(3),n=t.readBits(1);t.skipBits(3);const o=t.readBits(4);let c=0;o>0?c=t.readBits(9):t.skipBits(1),a.push({fscod:e,fscod2:null,bsid:i,bsmod:r,acmod:s,lfeon:n,numDepSub:o,chanLoc:c})}return 0===a.length?null:{dataRate:i,substreams:a}})(yo(e,X.contentSize));if(!i){ve._warn("Invalid dec3 box contents, ignoring.");break}const r=_t(i);null!==r&&(t.info.sampleRate=r),t.info.numberOfChannels=Rt(i)}break;case"ddts":{const t=this.currentTrack;if(!t)break;n("audio"===t.info?.type);const i=(e=>{if(e.length<20)return null;const t=f(e),i=t.getUint32(0);if(0===i)return null;const r=new Ce(e);r.seekToByte(13);const a=r.readBits(2);r.skipBits(5);const s=r.readBits(1),n=r.readBits(6);r.skipBits(14),r.skipBits(1),r.skipBits(3);const o=r.readBits(16);let c=null;return 0!==o?c=Vt(o):ne.id===i);if(!r)break;const a=Io(e),s=(12&a)>>2,n=3&a,o=[bo,To,So,Io],c=o[(48&a)>>4],l=o[s],u=o[n],d=Io(e);for(let h=0;he.timestamp-t.timestamp);for(let e=0;e({presentationTimestamp:e.presentationTimestamp,sampleIndex:t})).sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp);for(let a=0;ae.id===u);if(!d)break;const h=this.fragmentTrackDefaults.find(e=>e.trackId===u);this.currentTrack=d,d.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:h?.defaultSampleDescriptionIndex??null,defaultSampleDuration:h?.defaultSampleDuration??null,defaultSampleSize:h?.defaultSampleSize??null,defaultSampleFlags:h?.defaultSampleFlags??null,startTimestamp:null,encryptionAuxInfo:null},i?d.currentFragmentState.baseDataOffset=Eo(e):l&&(d.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),r&&(d.currentFragmentState.sampleDescriptionIndex=Io(e)),a&&(d.currentFragmentState.defaultSampleDuration=Io(e)),s&&(d.currentFragmentState.defaultSampleSize=Io(e)),o&&(d.currentFragmentState.defaultSampleFlags=Io(e)),c&&(d.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;n(t.currentFragmentState);const i=bo(e);e.skip(3);const r=0===i?Io(e):Eo(e);t.currentFragmentState.startTimestamp=r}break;case"trun":{const t=this.currentTrack;if(!t)break;n(this.currentFragment),n(t.currentFragmentState);const i=bo(e),r=So(e),a=Boolean(1&r),s=Boolean(4&r),o=Boolean(256&r),c=Boolean(512&r),l=Boolean(1024&r),u=Boolean(2048&r),d=Io(e);let h=null;a&&(h=Co(e));let f,m=null;s&&(m=Io(e)),this.currentFragment.trackData.has(t.id)?(f=this.currentFragment.trackData.get(t.id),null!==h&&(f.currentOffset=t.currentFragmentState.baseDataOffset+h)):(f={track:t,currentTimestamp:0,currentOffset:t.currentFragmentState.baseDataOffset+(h??0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(t.id,f));for(let p=0;p0&&(a=yo(e,r));const s=Gi(t);s.defaultSampleInfoSize=i,s.sampleSizes=a,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=bo(e);if(1&So(e)){const i=Do(e,4),r=Io(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=Io(e);if(0===r)break;r>1&&ve._warn("Multiple saio entries are not supported; using the first offset only.");let a=0===i?Io(e):Number(Eo(e));this.currentFragment&&(a+=this.currentFragment.moofOffset);Gi(t).offset=a}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;n(this.currentFragment);const i=this.currentFragment.trackData.get(t.id);if(!i)break;e.skip(1);const r=So(e),a=Boolean(2&r),s=Io(e),o=t.encryptionInfo.defaultPerSampleIvSize;n(null!==o);for(let n=0;n0?r.set(yo(e,o),0):r.set(t.encryptionInfo.defaultConstantIv,0);let s=null;if(a){const t=To(e);s=[];for(let i=0;i0&&((L=this.metadataTags).trackNumber??(L.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&((z=this.metadataTags).tracksTotal??(z.tracksTotal=i))}break;case"trkn":if(a instanceof Uint8Array&&a.length>=6){const e=f(a),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&((U=this.metadataTags).trackNumber??(U.trackNumber=t)),i>0&&((W=this.metadataTags).tracksTotal??(W.tracksTotal=i))}break;case"disc":case"disk":if(a instanceof Uint8Array&&a.length>=6){const e=f(a),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&((V=this.metadataTags).discNumber??(V.discNumber=t)),i>0&&((j=this.metadataTags).discsTotal??(j.discsTotal=i))}}}}}return e.filePos=Q,!0}}class zi{constructor(e){this.internalTrack=e,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.tracks)if(r.trackBacking.getType()===t&&i++,r===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const e=this.internalTrack;if(e.durationInMediaTimescale<=0)return null;n(e.trackBacking);const t=await e.trackBacking.getFirstPacket({metadataOnly:!0});return(t?.timestamp??0)+e.durationInMediaTimescale/e.timescale}async getLiveRefreshInterval(){return null}async getFirstPacket(e){const t=await this.fetchPacketForSampleIndex(0,e);return t||!this.internalTrack.demuxer.isFragmented?t:this.performFragmentedLookup(null,e=>e.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,e)}mapTimestampIntoTimescale(e){return W(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}async getPacket(e,t){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a=Wi(r,i),s=await this.fetchPacketForSampleIndex(a,t);return $i(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=_(t.presentationTimestamps,i,e=>e.presentationTimestamp);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id);if(r.sampleIndex+1{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=M(t.presentationTimestamps,e=>t.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=i);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id).samples.findIndex((e,t)=>e.isKeyFrame&&t>r.sampleIndex);if(-1!==t)return{sampleIndex:t,correctSampleFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.samples.findIndex(e=>e.isKeyFrame);return n(-1!==e),{sampleIndex:e,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)}async fetchPacketForSampleIndex(e,t){if(-1===e)return null;const i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=Vi(i,e);if(!r)return null;let a;if(t.metadataOnly)a=yi;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(ce(t)&&(t=await t),!t)return null;if(a=yo(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=await Qi(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);ee.timestamp),d=-1!==u?this.internalTrack.fragmentLookupTable[u]:null,h=_(this.internalTrack.fragmentPositionCache,i,e=>e.startTimestamp),f=-1!==h?this.internalTrack.fragmentPositionCache[h]:null,m=Math.max(d?.moofOffset??0,f?.moofOffset??0)||null;let p;for(e?null===m||e.moofOffset>=m?(p=e.moofOffset+e.moofSize,o=e):p=m:p=m??0;;){if(o){const e=o.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=s.reader.requestSliceRange(p,8,16);if(ce(e)&&(e=await e),!e)break;const i=p,n=Si(e);if(!n)break;if("moof"===n.name){o=await s.readFragment(i);const{sampleIndex:e,correctSampleFound:r}=t(o);if(r)return this.fetchPacketInFragment(o,e,a);-1!==e&&(c=o,l=e)}p=i+n.totalSize}if(d&&(!c||c.moofOffset{var e,t,i,r,a;if("avc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("hevc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("vp9"!==this.internalTrack.info.codec||this.internalTrack.info.vp9CodecInfo&&(2!==(a=this.internalTrack.info.vp9CodecInfo).colourPrimaries||2!==a.transferCharacteristics||2!==a.matrixCoefficients))if("av1"!==this.internalTrack.info.codec||this.internalTrack.info.av1CodecInfo&&(e=>2!==e.colourPrimaries||2!==e.transferCharacteristics||2!==e.matrixCoefficients)(this.internalTrack.info.av1CodecInfo)){if("prores"===this.internalTrack.info.codec&&!this.internalTrack.info.proresCodecInfo){const e=await this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=e&&yt(e.data)}}else{const e=await this.getFirstPacket({}),t=e&&kt(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const e=await this.getFirstPacket({}),t=e&&pt(e.data);t&&(this.internalTrack.info.vp9CodecInfo={...this.internalTrack.info.vp9CodecInfo??t,videoFullRangeFlag:t.videoFullRangeFlag,colourPrimaries:t.colourPrimaries,transferCharacteristics:t.transferCharacteristics,matrixCoefficients:t.matrixCoefficients})}else{const e=await this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=e&&rt(e.data)}else{const e=await this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&Xe(e.data)}if(!S(this.internalTrack.info.colorSpace)){const a=ti(this.internalTrack.info);(e=this.internalTrack.info.colorSpace).primaries??(e.primaries=a.primaries),(t=this.internalTrack.info.colorSpace).transfer??(t.transfer=a.transfer),(i=this.internalTrack.info.colorSpace).matrix??(i.matrix=a.matrix),(r=this.internalTrack.info.colorSpace).fullRange??(r.fullRange=a.fullRange)}const s={codec:ei(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(s.displayAspectWidth=this.internalTrack.info.squarePixelWidth,s.displayAspectHeight=this.internalTrack.info.squarePixelHeight),s})()):null}}class qi extends zi{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&qt(e.data)}return{codec:ii(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})()):null}}const Wi=(e,t)=>{if(e.presentationTimestamps){const i=_(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=_(e.sampleTimingEntries,t,e=>e.startDecodeTimestamp);if(-1===i)return-1;const r=e.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},Hi=(e,t)=>{if(!e.keySampleIndices)return Wi(e,t);if(e.presentationTimestamps){const i=_(e.presentationTimestamps,t,e=>e.presentationTimestamp);if(-1===i)return-1;for(let t=i;t>=0;t--){const i=e.presentationTimestamps[t].sampleIndex;if(-1!==E(e.keySampleIndices,i,e=>e))return i}return-1}{const i=Wi(e,t),r=_(e.keySampleIndices,i,e=>e);return e.keySampleIndices[r]??-1}},Vi=(e,t)=>{const i=_(e.sampleTimingEntries,t,e=>e.startIndex),r=e.sampleTimingEntries[i];if(!r||r.startIndex+r.count<=t)return null;let a=r.startDecodeTimestamp+(t-r.startIndex)*r.delta;const s=_(e.sampleCompositionTimeOffsets,t,e=>e.startIndex),o=e.sampleCompositionTimeOffsets[s];o&&t-o.startIndexe.startSampleIndex),u=e.sampleToChunk[l];n(u);const d=u.startChunkIndex+Math.floor((t-u.startSampleIndex)/u.samplesPerChunk),h=e.chunkOffsets[d],f=u.startSampleIndex+(d-u.startChunkIndex)*u.samplesPerChunk;let m=0,p=h;if(1===e.sampleSizes.length)p+=c*(t-f),m+=c*u.samplesPerChunk;else for(let n=f;ne)}},ji=(e,t)=>{if(!e.keySampleIndices)return t+1;const i=_(e.keySampleIndices,t,e=>e);return e.keySampleIndices[i+1]??-1},Ki=(e,t)=>{e.startTimestamp+=t,e.endTimestamp+=t;for(const i of e.samples)i.presentationTimestamp+=t;for(const i of e.presentationTimestamps)i.presentationTimestamp+=t},Xi=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},$i=e=>0===e.sampleSizes.length,Gi=e=>{var t;return e.currentFragmentState?(t=e.currentFragmentState).encryptionAuxInfo??(t.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}):e.encryptionAuxInfo??(e.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null})},Qi=async(e,t,i)=>{if(i.resolved)return i.resolved;if(null===i.offset||0===i.sampleCount)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let r=0;if(i.defaultSampleInfoSize>0)r=i.defaultSampleInfoSize*i.sampleCount;else{n(i.sampleSizes);for(let e=0;e0?i.defaultSampleInfoSize:i.sampleSizes[n],r=new Uint8Array(16);s>0?r.set(yo(a,s),0):r.set(t.defaultConstantIv,0);let c=null;if(e>s){const e=To(a);c=[];for(let t=0;te.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,Ji=async(e,t,i,r)=>{n(e.encryptionInfo);const a=e.encryptionInfo;n(null!==a.defaultKid);const s=a.defaultKid;let o;const c=e.demuxer.decryptionKeyCache.get(s);if(c)o=await c;else{if(!e.demuxer.input._formatOptions.isobmff?.resolveKeyId)throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const t=(async()=>{let t=e.demuxer.psshBoxes;if(r){t=[...t,...r.psshBoxes].filter(e=>null===e.keyIds||e.keyIds.includes(s));for(let e=0;e{n(e.length%2===0);const t=new Uint8Array(e.length/2);for(let i=0;i{const a=new Uint8Array(16);a.set(i.iv,0);const s=await crypto.subtle.importKey("raw",e,{name:"AES-CTR"},!1,["decrypt"]),o=async e=>{const t=await crypto.subtle.decrypt({name:"AES-CTR",counter:a,length:64},s,e);return new Uint8Array(t)};if(!i.subsamples)return o(r);n(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const c=tr(i.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock);let l=0;for(const n of c)for(const e of n.perSubsample)l+=e.length;const u=new Uint8Array(l);let d=0;for(const n of c)for(const e of n.perSubsample)u.set(r.subarray(e.offset,e.offset+e.length),d),d+=e.length;const h=await o(u),f=new Uint8Array(r);let m=0;for(const n of c)for(const e of n.perSubsample)f.set(h.subarray(m,m+e.length),e.offset),m+=e.length;return f},er=(e,t,i,r)=>{const a=new Oi;a.init({key:e,iv:i.iv});const s=t.defaultCryptByteBlock,o=t.defaultSkipByteBlock;if(n(null!==s&&null!==o),!i.subsamples){const e=new Uint8Array(r),t=Math.floor(r.length/16);for(let i=0;i{const r=[],a=0!==t||0!==i;let s=0;for(const n of e){s+=n.clearLen;const e=[];if(a){let r=n.protectedLen,a=s;for(;r>0&&!(r<16*t);){const s=16*t;e.push({offset:a,length:s}),a+=s,r-=s;const n=Math.min(16*i,r);a+=n,r-=n}s+=n.protectedLen}else n.protectedLen>0&&e.push({offset:s,length:n.protectedLen}),s+=n.protectedLen;r.push({perSubsample:e})}return r};var ir,rr;(rr=ir||(ir={}))[rr.EBML=440786851]="EBML",rr[rr.EBMLVersion=17030]="EBMLVersion",rr[rr.EBMLReadVersion=17143]="EBMLReadVersion",rr[rr.EBMLMaxIDLength=17138]="EBMLMaxIDLength",rr[rr.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",rr[rr.DocType=17026]="DocType",rr[rr.DocTypeVersion=17031]="DocTypeVersion",rr[rr.DocTypeReadVersion=17029]="DocTypeReadVersion",rr[rr.Void=236]="Void",rr[rr.Segment=408125543]="Segment",rr[rr.SeekHead=290298740]="SeekHead",rr[rr.Seek=19899]="Seek",rr[rr.SeekID=21419]="SeekID",rr[rr.SeekPosition=21420]="SeekPosition",rr[rr.Duration=17545]="Duration",rr[rr.Info=357149030]="Info",rr[rr.TimestampScale=2807729]="TimestampScale",rr[rr.MuxingApp=19840]="MuxingApp",rr[rr.WritingApp=22337]="WritingApp",rr[rr.Tracks=374648427]="Tracks",rr[rr.TrackEntry=174]="TrackEntry",rr[rr.TrackNumber=215]="TrackNumber",rr[rr.TrackUID=29637]="TrackUID",rr[rr.TrackType=131]="TrackType",rr[rr.FlagEnabled=185]="FlagEnabled",rr[rr.FlagDefault=136]="FlagDefault",rr[rr.FlagForced=21930]="FlagForced",rr[rr.FlagOriginal=21934]="FlagOriginal",rr[rr.FlagHearingImpaired=21931]="FlagHearingImpaired",rr[rr.FlagVisualImpaired=21932]="FlagVisualImpaired",rr[rr.FlagCommentary=21935]="FlagCommentary",rr[rr.FlagLacing=156]="FlagLacing",rr[rr.Name=21358]="Name",rr[rr.Language=2274716]="Language",rr[rr.LanguageBCP47=2274717]="LanguageBCP47",rr[rr.CodecID=134]="CodecID",rr[rr.CodecPrivate=25506]="CodecPrivate",rr[rr.CodecDelay=22186]="CodecDelay",rr[rr.SeekPreRoll=22203]="SeekPreRoll",rr[rr.DefaultDuration=2352003]="DefaultDuration",rr[rr.Video=224]="Video",rr[rr.PixelWidth=176]="PixelWidth",rr[rr.PixelHeight=186]="PixelHeight",rr[rr.DisplayWidth=21680]="DisplayWidth",rr[rr.DisplayHeight=21690]="DisplayHeight",rr[rr.DisplayUnit=21682]="DisplayUnit",rr[rr.AlphaMode=21440]="AlphaMode",rr[rr.Audio=225]="Audio",rr[rr.SamplingFrequency=181]="SamplingFrequency",rr[rr.Channels=159]="Channels",rr[rr.BitDepth=25188]="BitDepth",rr[rr.SimpleBlock=163]="SimpleBlock",rr[rr.BlockGroup=160]="BlockGroup",rr[rr.Block=161]="Block",rr[rr.BlockAdditions=30113]="BlockAdditions",rr[rr.BlockMore=166]="BlockMore",rr[rr.BlockAdditional=165]="BlockAdditional",rr[rr.BlockAddID=238]="BlockAddID",rr[rr.BlockDuration=155]="BlockDuration",rr[rr.ReferenceBlock=251]="ReferenceBlock",rr[rr.Cluster=524531317]="Cluster",rr[rr.Timestamp=231]="Timestamp",rr[rr.Cues=475249515]="Cues",rr[rr.CuePoint=187]="CuePoint",rr[rr.CueTime=179]="CueTime",rr[rr.CueTrackPositions=183]="CueTrackPositions",rr[rr.CueTrack=247]="CueTrack",rr[rr.CueClusterPosition=241]="CueClusterPosition",rr[rr.Colour=21936]="Colour",rr[rr.MatrixCoefficients=21937]="MatrixCoefficients",rr[rr.TransferCharacteristics=21946]="TransferCharacteristics",rr[rr.Primaries=21947]="Primaries",rr[rr.Range=21945]="Range",rr[rr.Projection=30320]="Projection",rr[rr.ProjectionType=30321]="ProjectionType",rr[rr.ProjectionPoseRoll=30325]="ProjectionPoseRoll",rr[rr.Attachments=423732329]="Attachments",rr[rr.AttachedFile=24999]="AttachedFile",rr[rr.FileDescription=18046]="FileDescription",rr[rr.FileName=18030]="FileName",rr[rr.FileMediaType=18016]="FileMediaType",rr[rr.FileData=18012]="FileData",rr[rr.FileUID=18094]="FileUID",rr[rr.Chapters=272869232]="Chapters",rr[rr.Tags=307544935]="Tags",rr[rr.Tag=29555]="Tag",rr[rr.Targets=25536]="Targets",rr[rr.TargetTypeValue=26826]="TargetTypeValue",rr[rr.TargetType=25546]="TargetType",rr[rr.TagTrackUID=25541]="TagTrackUID",rr[rr.TagEditionUID=25545]="TagEditionUID",rr[rr.TagChapterUID=25540]="TagChapterUID",rr[rr.TagAttachmentUID=25542]="TagAttachmentUID",rr[rr.SimpleTag=26568]="SimpleTag",rr[rr.TagName=17827]="TagName",rr[rr.TagLanguage=17530]="TagLanguage",rr[rr.TagString=17543]="TagString",rr[rr.TagBinary=17541]="TagBinary",rr[rr.ContentEncodings=28032]="ContentEncodings",rr[rr.ContentEncoding=25152]="ContentEncoding",rr[rr.ContentEncodingOrder=20529]="ContentEncodingOrder",rr[rr.ContentEncodingScope=20530]="ContentEncodingScope",rr[rr.ContentCompression=20532]="ContentCompression",rr[rr.ContentCompAlgo=16980]="ContentCompAlgo",rr[rr.ContentCompSettings=16981]="ContentCompSettings",rr[rr.ContentEncryption=20533]="ContentEncryption";const ar=[ir.EBML,ir.Segment],sr=[ir.SeekHead,ir.Info,ir.Cluster,ir.Tracks,ir.Cues,ir.Attachments,ir.Chapters,ir.Tags],nr=[...ar,...sr],or=16,cr=e=>{if(e.remainingLength<1)return null;const t=bo(e);if(e.skip(-1),0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;return e.remainingLength{if(e.remainingLength<1)return null;const t=bo(e);if(0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;if(e.remainingLength{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let i=0;for(let r=0;r{const t=cr(e);if(null===t)return null;if(e.remainingLength{if(e.remainingLength<1)return null;if(255===bo(e))return;e.skip(-1);const t=lr(e);return null===t?null:72057594037927940!==t?t:void 0},fr=e=>{n(e.remainingLength>=2);const t=dr(e);if(null===t)return null;const i=hr(e);return null===i?null:{id:t,size:i}},mr=(e,t)=>{const i=yo(e,t);let r=0;for(;r{const i=yo(e,t);let r=0;for(;r{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?Fo(e):Ao(e)},kr=async(e,t,i,r)=>{const a=new Set(i);let s=t;for(;null===r||ss?r:s,found:!1}},yr=async(e,t,i,r)=>{const a=new Set(i);let s=t;for(;se.tracks.map(e=>e.trackBacking))}async getMimeType(){await this.readMetadata();const e=await this.getTrackBackings(),t=await Promise.all(e.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings.filter(Boolean))].join(", ")}"`);return t})({isWebM:this.isWebM,hasVideo:this.segments.some(e=>e.tracks.some(e=>"video"===e.info?.type)),hasAudio:this.segments.some(e=>e.tracks.some(e=>"audio"===e.info?.type)),codecStrings:t.filter(Boolean)})}async getMetadataTags(){await this.readMetadata();for(const t of this.segments)t.metadataTagsCollected||(null!==this.reader.fileSize&&await this.loadSegmentMetadata(t),t.metadataTagsCollected=!0);let e={};for(const t of this.segments)e={...e,...t.metadataTags};return e}readMetadata(){return this.readMetadataPromise??(this.readMetadataPromise=(async()=>{let e=0;for(;;){let t=this.reader.requestSliceRange(e,2,or);if(ce(t)&&(t=await t),!t)break;const i=fr(t);if(!i)break;const r=i.id;let a=i.size;const s=t.filePos;if(r===ir.EBML){Ar(a);let e=this.reader.requestSlice(s,a);if(ce(e)&&(e=await e),!e)break;this.readContiguousElements(e)}else if(r===ir.Segment){if(await this.readSegment(s,a),void 0===a)break;if(null===this.reader.fileSize)break}else if(r===ir.Cluster){if(null===this.reader.fileSize)break;if(void 0===a){a=(await kr(this.reader,s,nr,this.reader.fileSize)).pos-s}const e=c(this.segments);e&&(e.elementEndPos=s+a)}Ar(a),e=s+a}})())}async readSegment(e,t){this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:void 0===t?null:e+t,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let i=e;for(;null===this.currentSegment.elementEndPos||ie.id===a);if(-1!==o){const e=Ur[o].flag;this.currentSegment[e]=!0,Ar(s);let t=this.reader.requestSlice(n,s);ce(t)&&(t=await t),t&&this.readContiguousElements(t)}else if(a===ir.Tags||a===ir.Attachments){a===ir.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,Ar(s);let e=this.reader.requestSlice(n,s);ce(e)&&(e=await e),e&&this.readContiguousElements(e)}else if(a===ir.Cluster){this.currentSegment.clusterSeekStartPos=t;break}if(void 0===s)break;i=n+s}if(this.currentSegment.seekEntries.sort((e,t)=>e.segmentPosition-t.segmentPosition),null!==this.reader.fileSize)for(const n of this.currentSegment.seekEntries){const t=Ur.find(e=>e.id===n.id);if(!t)continue;if(this.currentSegment[t.flag])continue;let i=this.reader.requestSliceRange(e+n.segmentPosition,2,or);if(ce(i)&&(i=await i),!i)continue;const r=fr(i);if(!r)continue;const{id:a,size:s}=r;if(a!==t.id)continue;Ar(s),this.currentSegment[t.flag]=!0;let o=this.reader.requestSlice(i.filePos,s);ce(o)&&(o=await o),o&&this.readContiguousElements(o)}-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3);for(const n of this.currentSegment.tracks)null!==n.defaultDurationNs&&(n.defaultDuration=this.currentSegment.timestampFactor*n.defaultDurationNs/1e9);const r=new Map(this.currentSegment.tracks.map(e=>[e.id,e]));for(const n of this.currentSegment.cuePoints){const e=r.get(n.trackId);e&&e.cuePoints.push(n)}for(const n of this.currentSegment.tracks){n.cuePoints.sort((e,t)=>e.time-t.time);for(let e=0;es&&(s=n.cuePoints.length,a=n);for(const n of this.currentSegment.tracks)0===n.cuePoints.length&&(n.cuePoints=a.cuePoints);this.currentSegment=null}async readCluster(e,t){if(t.lastReadCluster?.elementStartPos===e)return t.lastReadCluster;let i=this.reader.requestSliceRange(e,2,or);ce(i)&&(i=await i),n(i);const r=e,a=fr(i);n(a);n(a.id===ir.Cluster);let s=a.size;const o=i.filePos;if(void 0===s){s=(await kr(this.reader,o,nr,t.elementEndPos)).pos-o}let l=this.reader.requestSlice(o,s);ce(l)&&(l=await l);const u={segment:t,elementStartPos:r,elementEndPos:o+s,dataStartPos:o,timestamp:-1,trackData:new Map};if(this.currentCluster=u,l){const e=this.readContiguousElements(l,nr);u.elementEndPos=e}for(const[,d]of u.trackData){const e=d.track;n(d.blocks.length>0);let t=!1;for(let r=0;r({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp);for(let r=0;r({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp));const i=d.blocks[d.presentationTimestamps[0].blockIndex],a=d.blocks[c(d.presentationTimestamps).blockIndex];d.startTimestamp=i.timestamp,d.endTimestamp=a.timestamp+a.duration;const s=_(e.clusterPositionCache,d.startTimestamp,e=>e.startTimestamp);-1!==s&&e.clusterPositionCache[s].elementStartPos===r||e.clusterPositionCache.splice(s+1,0,{elementStartPos:u.elementStartPos,startTimestamp:d.startTimestamp})}return t.lastReadCluster=u,u}getTrackDataInCluster(e,t){let i=e.trackData.get(t);if(!i){const r=e.segment.tracks.find(e=>e.id===t);if(!r)return null;i={track:r,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,i)}return i}expandLacedBlocks(e,t){for(let i=0;i=2;){const i=e.filePos;if(!this.traverseElement(e,t))return i}return e.filePos}traverseElement(e,t){const i=fr(e);if(!i)return!1;if(t&&t.includes(i.id))return!1;const{id:r,size:a}=i,s=e.filePos;switch(Ar(a),r){case ir.DocType:this.isWebM="webm"===mr(e,a);break;case ir.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(s,a)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case ir.SeekID:{const t=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=ur(e,a)}break;case ir.SeekPosition:{const t=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=ur(e,a)}break;case ir.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=ur(e,a),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case ir.Duration:if(!this.currentSegment)break;this.currentSegment.duration=gr(e,a);break;case ir.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:{...xe,primary:!1},trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(s,a)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>"decompress"!==e.data?.type||e.scope!==Nr.Block||e.data.algorithm!==Lr.HeaderStripping)&&(ve._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){const e=this.currentTrack.codecId.indexOf("/"),t=-1===e?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,e);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,null!==this.currentTrack.info.displayWidth&&null!==this.currentTrack.info.displayHeight){const e=this.currentTrack.info.displayWidth*this.currentTrack.info.height,t=this.currentTrack.info.displayHeight*this.currentTrack.info.width;e>0&&t>0&&(e>t?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*e/t):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*t/e))}if(this.currentTrack.codecId===br)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===wr)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===Tr)this.currentTrack.info.codec="vp8";else if(t===Sr)this.currentTrack.info.codec="vp9";else if(t===vr)this.currentTrack.info.codec="av1";else if(t===Pr){const e=this.currentTrack.codecPrivate?m.decode(this.currentTrack.codecPrivate):"";Jt.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new Vr(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===Ir?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===xr?this.currentTrack.info.codec="mp3":t===Cr?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=ri):t===Br?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Er?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===_r?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Rr?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Fr?(this.currentTrack.info.codec="dts","A_DTS/EXPRESS"===this.currentTrack.codecId?this.currentTrack.info.dtsFormat="dtse":"A_DTS/LOSSLESS"===this.currentTrack.codecId&&(this.currentTrack.info.dtsFormat="dtsl")):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));const e=this.currentTrack;this.currentTrack.trackBacking=new jr(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case ir.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=ur(e,a);break;case ir.TrackType:{if(!this.currentTrack)break;const t=ur(e,a);1===t?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:{...v},alphaMode:!1,proresFormat:null}:2===t&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case ir.FlagEnabled:if(!this.currentTrack)break;ur(e,a)||(this.currentTrack=null);break;case ir.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!ur(e,a);break;case ir.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!ur(e,a);break;case ir.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!ur(e,a);break;case ir.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!ur(e,a);break;case ir.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!ur(e,a);break;case ir.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!ur(e,a);break;case ir.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=mr(e,a);break;case ir.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=yo(e,a);break;case ir.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=ur(e,a);break;case ir.Name:if(!this.currentTrack)break;this.currentTrack.name=pr(e,a);break;case ir.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=mr(e,a),$(this.currentTrack.languageCode)||(this.currentTrack.languageCode=q);break;case ir.LanguageBCP47:{if(!this.currentTrack)break;const t=mr(e,a).split("-")[0];this.currentTrack.languageCode=t||q,this.currentTrack.hasLanguageBcp47=!0}break;case ir.Video:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case ir.PixelWidth:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.width=ur(e,a);break;case ir.PixelHeight:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.height=ur(e,a);break;case ir.DisplayWidth:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayWidth=ur(e,a);break;case ir.DisplayHeight:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayHeight=ur(e,a);break;case ir.DisplayUnit:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayUnit=ur(e,a);break;case ir.AlphaMode:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.alphaMode=1===ur(e,a);break;case ir.Colour:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case ir.MatrixCoefficients:{if("video"!==this.currentTrack?.info?.type)break;const t=ur(e,a),i=T[t];this.currentTrack.info.colorSpace.matrix=i}break;case ir.Range:{if("video"!==this.currentTrack?.info?.type)break;const t=ur(e,a);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case ir.TransferCharacteristics:{if("video"!==this.currentTrack?.info?.type)break;const t=ur(e,a),i=b[t];this.currentTrack.info.colorSpace.transfer=i}break;case ir.Primaries:{if("video"!==this.currentTrack?.info?.type)break;const t=ur(e,a),i=k[t];this.currentTrack.info.colorSpace.primaries=i}break;case ir.Projection:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case ir.ProjectionPoseRoll:{if("video"!==this.currentTrack?.info?.type)break;const t=-gr(e,a);try{this.currentTrack.info.rotation=o(t)}catch{}}break;case ir.Audio:if("audio"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case ir.SamplingFrequency:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.sampleRate=gr(e,a);break;case ir.Channels:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.numberOfChannels=ur(e,a);break;case ir.BitDepth:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.bitDepth=ur(e,a);break;case ir.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(s,a)),this.currentCueTime=null;break;case ir.CueTime:this.currentCueTime=ur(e,a);break;case ir.CueTrackPositions:{if(null===this.currentCueTime)break;n(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(s,a)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case ir.CueTrack:{const t=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=ur(e,a)}break;case ir.CueClusterPosition:{const t=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;n(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+ur(e,a)}break;case ir.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=ur(e,a);break;case ir.SimpleBlock:{if(!this.currentCluster)break;const t=lr(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=vo(e),n=bo(e),o=n>>1&3;let c=!!(128&n);"audio"===i.track.info?.type&&i.track.info.codec&&(c=!0);const l=yo(e,a-(e.filePos-s)),u=i.track.decodingInstructions.length>0;i.blocks.push({timestamp:r,duration:0,isKeyFrame:c,data:l,lacing:o,decoded:!u,postProcessed:!1,mainAdditional:null})}break;case ir.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(s,a)),this.currentBlock=null;break;case ir.Block:{if(!this.currentCluster)break;const t=lr(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=vo(e),n=bo(e)>>1&3,o=yo(e,a-(e.filePos-s)),c=i.track.decodingInstructions.length>0;this.currentBlock={timestamp:r,duration:0,isKeyFrame:!0,data:o,lacing:n,decoded:!c,postProcessed:!1,mainAdditional:null},i.blocks.push(this.currentBlock)}break;case ir.BlockAdditions:this.readContiguousElements(e.slice(s,a));break;case ir.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(s,a)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case ir.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=yo(e,a);break;case ir.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=ur(e,a);break;case ir.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=ur(e,a);break;case ir.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case ir.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(s,a));break;case ir.Targets:this.readContiguousElements(e.slice(s,a));break;case ir.TargetTypeValue:50!==ur(e,a)&&(this.currentTagTargetIsMovie=!1);break;case ir.TagTrackUID:case ir.TagEditionUID:case ir.TagChapterUID:case ir.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case ir.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(s,a));break;case ir.TagName:this.currentSimpleTagName=pr(e,a);break;case ir.TagString:{if(!this.currentSimpleTagName)break;const t=pr(e,a);this.processTagValue(this.currentSimpleTagName,t)}break;case ir.TagBinary:{if(!this.currentSimpleTagName)break;const t=yo(e,a);this.processTagValue(this.currentSimpleTagName,t)}break;case ir.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(s,a));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(t.raw??(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new Ie(this.currentAttachedFile.fileData,this.currentAttachedFile.fileMediaType??void 0,this.currentAttachedFile.fileName??void 0,this.currentAttachedFile.fileDescription??void 0)),this.currentAttachedFile.fileMediaType?.startsWith("image/")&&this.currentAttachedFile.fileData){const e=this.currentAttachedFile.fileName;let i="unknown";if(e){const t=e.toLowerCase();t.startsWith("cover.")?i="coverFront":t.startsWith("back.")&&(i="coverBack")}t.images??(t.images=[]),t.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:i,name:this.currentAttachedFile.fileName??void 0,description:this.currentAttachedFile.fileDescription??void 0})}this.currentAttachedFile=null}break;case ir.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=((e,t)=>{if(t<1)throw new Error("Bad unsigned int size "+t);let i=0n;for(let r=0;rt.order-e.order);break;case ir.ContentEncoding:this.currentDecodingInstruction={order:0,scope:Nr.Block,data:null},this.readContiguousElements(e.slice(s,a)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case ir.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=ur(e,a);break;case ir.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=ur(e,a);break;case ir.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:Lr.Zlib,settings:null},this.readContiguousElements(e.slice(s,a));break;case ir.ContentCompAlgo:if("decompress"!==this.currentDecodingInstruction?.data?.type)break;this.currentDecodingInstruction.data.algorithm=ur(e,a);break;case ir.ContentCompSettings:if("decompress"!==this.currentDecodingInstruction?.data?.type)break;this.currentDecodingInstruction.data.settings=yo(e,a);break;case ir.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=s+a,!0}decodeBlockData(e,t){n(e.decodingInstructions.length>0);let i=t;for(const r of e.decodingInstructions)if(n(r.data),"decompress"===r.data.type)if(r.data.algorithm===Lr.HeaderStripping)if(r.data.settings&&r.data.settings.length>0){const e=r.data.settings,t=new Uint8Array(e.length+i.length);t.set(e,0),t.set(i,e.length),i=t}return i}processTagValue(e,t){var i;if(!this.currentSegment?.metadataTags)return;const r=this.currentSegment.metadataTags;if(r.raw??(r.raw={}),(i=r.raw)[e]??(i[e]=t),"string"===typeof t)switch(e.toLowerCase()){case"title":r.title??(r.title=t);break;case"description":r.description??(r.description=t);break;case"artist":r.artist??(r.artist=t);break;case"album":r.album??(r.album=t);break;case"album_artist":r.albumArtist??(r.albumArtist=t);break;case"genre":r.genre??(r.genre=t);break;case"comment":r.comment??(r.comment=t);break;case"lyrics":r.lyrics??(r.lyrics=t);break;case"date":{const e=new Date(t);Number.isNaN(e.getTime())||(r.date??(r.date=e))}break;case"track_number":case"part_number":{const e=t.split("/"),i=Number.parseInt(e[0],10),a=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(r.trackNumber??(r.trackNumber=i)),a&&Number.isInteger(a)&&a>0&&(r.tracksTotal??(r.tracksTotal=a))}break;case"disc_number":case"disc":{const e=t.split("/"),i=Number.parseInt(e[0],10),a=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(r.discNumber??(r.discNumber=i)),a&&Number.isInteger(a)&&a>0&&(r.discsTotal??(r.discsTotal=a))}}}async getDurationFromMetadata(e){if(e.duration<=0)return null;let t=null;for(const r of e.tracks){n(r.trackBacking);const e=await r.trackBacking.getFirstPacket({metadataOnly:!0});e&&(t=Math.min(t??1/0,e.timestamp))}let i=e.duration/e.timestampFactor;return i+=t??0,i}}class Hr{constructor(e){this.internalTrack=e,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.segments)for(const e of r.tracks)if(e.trackBacking.getType()===t&&i++,e===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)}async getLiveRefreshInterval(){return null}async getFirstPacket(e){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,e)}intoTimescale(e){return W(e*this.internalTrack.segment.timestampFactor)}async getPacket(e,t){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=_(t.presentationTimestamps,i,e=>e.timestamp);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id);if(i.blockIndex+1{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=M(t.presentationTimestamps,e=>t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=i);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id).blocks.findIndex((e,t)=>e.isKeyFrame&&t>i.blockIndex);if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.blocks.findIndex(e=>e.isKeyFrame);return n(-1!==e),{blockIndex:e,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)}async fetchPacketInCluster(e,t,i){if(-1===t)return null;const r=e.trackData.get(this.internalTrack.id).blocks[t];if(n(r),r.decoded||(r.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,r.data),r.decoded=!0),!r.postProcessed){if("prores"===this.internalTrack.info?.codec){if(!(r.data.length>=8&&105===r.data[4]&&99===r.data[5]&&112===r.data[6]&&102===r.data[7])){const e=new Uint8Array(r.data.length+8);f(e).setUint32(0,e.length,!1),e[4]=105,e[5]=99,e[6]=112,e[7]=102,e.set(r.data,8),r.data=e}}r.postProcessed=!0}const a=i.metadataOnly?yi:r.data,s=r.timestamp/this.internalTrack.segment.timestampFactor,o=r.duration/this.internalTrack.segment.timestampFactor,c={};r.mainAdditional&&"video"===this.internalTrack.info?.type&&this.internalTrack.info.alphaMode&&(c.alpha=i.metadataOnly?yi:r.mainAdditional,c.alphaByteLength=r.mainAdditional.byteLength);const l=new bi(a,r.isKeyFrame?"key":"delta",s,o,e.dataStartPos+t,r.data.byteLength,c);return this.packetToClusterLocation.set(l,{cluster:e,blockIndex:t}),l}async performClusterLookup(e,t,i,r,a){const{demuxer:s,segment:o}=this.internalTrack;let c=null,l=null,u=-1;if(e){const{blockIndex:i,correctBlockFound:r}=t(e);if(r)return this.fetchPacketInCluster(e,i,a);-1!==i&&(l=e,u=i)}const d=_(this.internalTrack.cuePoints,i,e=>e.time),h=-1!==d?this.internalTrack.cuePoints[d]:null,f=_(this.internalTrack.clusterPositionCache,i,e=>e.startTimestamp),m=-1!==f?this.internalTrack.clusterPositionCache[f]:null,p=Math.max(h?.clusterPosition??0,m?.elementStartPos??0)||null;let g;for(e?null===p||e.elementStartPos>=p?(g=e.elementEndPos,c=e):g=p:g=p??o.clusterSeekStartPos;null===o.elementEndPos||g<=o.elementEndPos-2;){if(c){const e=c.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=s.reader.requestSliceRange(g,2,or);if(ce(e)&&(e=await e),!e)break;const i=g,d=fr(e);if(!d||!sr.includes(d.id)&&d.id!==ir.Void){const e=await yr(s.reader,i,sr,Math.min(o.elementEndPos??1/0,i+qr));if(e){g=e;continue}break}const h=d.id;let f=d.size;const m=e.filePos;if(h===ir.Cluster){c=await s.readCluster(i,o),f=c.elementEndPos-m;const{blockIndex:e,correctBlockFound:r}=t(c);if(r)return this.fetchPacketInCluster(c,e,a);-1!==e&&(l=c,u=e)}if(void 0===f){n(h!==ir.Cluster);f=(await kr(s.reader,m,nr,o.elementEndPos)).pos-m}const p=m+f;if(null===o.elementEndPos){let e=s.reader.requestSliceRange(p,2,or);if(ce(e)&&(e=await e),!e)break;if(dr(e)===ir.Segment){o.elementEndPos=p;break}}g=p}if(h&&(!l||l.elementStartPos{var e,t,i,r;let a=null;("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"prores"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription)&&(a=await this.getFirstPacket({}));const s={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:"avc"===this.internalTrack.info.codec&&a?Xe(a.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&a?rt(a.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&a?pt(a.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&a?kt(a.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&a?yt(a.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!S(this.internalTrack.info.colorSpace)){const a=ti(s);(e=this.internalTrack.info.colorSpace).primaries??(e.primaries=a.primaries),(t=this.internalTrack.info.colorSpace).transfer??(t.transfer=a.transfer),(i=this.internalTrack.info.colorSpace).matrix??(i.matrix=a.matrix),(r=this.internalTrack.info.colorSpace).fullRange??(r.fullRange=a.fullRange)}const n={codec:ei(s),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(n.displayAspectWidth=this.internalTrack.info.squarePixelWidth,n.displayAspectHeight=this.internalTrack.info.squarePixelHeight),n})()):null}}class jr extends Hr{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&qt(e.data)}return{codec:ii({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})()):null}}const Kr=async(e,t,i,r=null)=>{let a=t;for(;null===i||a=4;){const t=s.filePos,i=Io(s),n=null!==e.fileSize?e.fileSize-a:null,o=hi(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&gi(o.header.channel)===gi(r.channel)))return{header:o.header,startPos:a};s.filePos=t+o.bytesAdvanced,a=s.filePos}}return null};class Xr extends ki{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.xingFrameHeader=null,this.xingFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new I,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new $r(this)]})())}async advanceReader(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,qo);if(ce(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=jo(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=await Kr(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e)return void(this.lastSampleLoaded=!0);const t=e.header;this.lastLoadedPos=e.startPos+t.totalSize-1;const i=di(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(ce(r)&&(r=await r),r){const a=Io(r);if(a===li||a===ui){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(ce(t)&&(t=await t),t){const e=yo(t,12),i=f(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&mi.FrameCount?i.getUint32(4,!1):null,fileSize:r&mi.FileSize?i.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=t,this.firstFrameHeaderPos=e.startPos);const a=t.audioSamplesInFrame/this.firstFrameHeader.sampleRate,s={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:a,dataStart:e.startPos,dataSize:t.totalSize};this.loadedSamples.push(s),this.nextTimestampInSamples+=t.audioSamplesInFrame}async getMimeType(){return"audio/mpeg"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0,t=!1;for(;;){let i=this.reader.requestSlice(e,qo);if(ce(i)&&(i=await i),!i)break;const r=jo(i);if(!r)break;t=!0;let a=this.reader.requestSlice(i.filePos,r.size);if(ce(a)&&(a=await a),!a)break;Ko(a,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=Uo){let e=this.reader.requestSlice(this.reader.fileSize-Uo,Uo);ce(e)&&(e=await e),n(e);"TAG"===Do(e,3)&&Ho(e,this.metadataTags)}return this.metadataTags}finally{e()}}}class $r{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return n(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const e=this.demuxer;if(n(null!==e.firstFrameHeader),n(null!==e.firstFrameHeaderPos),e.xingData){if(null!==e.xingData.frameCount)return e.xingData.frameCount*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}else if(null!==e.reader.fileSize){const s=(t=e.firstFrameHeader.lowSamplingFrequency,i=e.firstFrameHeader.layer,r=e.firstFrameHeader.bitrate,a=e.firstFrameHeader.sampleRate,0===i?0:1===i?144*r/(a<e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}}async getPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=_(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1>>0&4294967295}const Yr=e=>{const t=f(e),i=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let a=0;a>>24^t])>>>0}return t.setUint32(22,i,!0),r},Jr=(e,t,i)=>{let r=0,a=null;if(e.length>0)if("vorbis"===t.codec){n(t.vorbisInfo);const s=(1<<(e=>{let t=0;for(;e;)t++,e>>=1;return t})(t.vorbisInfo.modeBlockflags.length-1))-1<<1,o=(e[0]&s)>>1;if(o>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let c=i;const l=t.vorbisInfo.modeBlockflags[o];if(a=t.vorbisInfo.blocksizes[l],1===l){const i=1+(1|s),r=e[0]&i?1:0;c=t.vorbisInfo.blocksizes[r]}r=null!==c?c+a>>2:0}else if("opus"===t.codec){r=(e=>{const t=e[0]>>3,i=3&e[0];let r;return r=0===i?1:1===i||2===i?2:63&e[1],{durationInSamples:bt[t]*r}})(e).durationInSamples}return{durationInSamples:r,vorbisBlockSize:a}},Zr=27,ea=282,ta=e=>{const t=e.filePos;if(xo(e)!==Gr)return null;e.skip(1);const i=bo(e),r=Ro(e),a=xo(e),s=xo(e),n=xo(e),o=bo(e),c=new Uint8Array(o);for(let d=0;de+t,0);return{headerStartPos:t,totalSize:l+u,dataStartPos:t+l,dataSize:u,headerType:i,granulePosition:r,serialNumber:a,sequenceNumber:s,checksum:n,lacingValues:c}},ia=(e,t)=>{for(;e.filePos>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===Gr)return!0;e.skip(1)}}return!1};class ra extends ki{constructor(e){super(e),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=0;for(;;){let t=this.reader.requestSliceRange(e,Zr,ea);if(ce(t)&&(t=await t),!t)break;const i=ta(t);if(!i)break;if(!!!(2&i.headerType))break;this.bitstreams.push({serialNumber:i.serialNumber,bosPage:i,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=i.headerStartPos+i.totalSize}for(const t of this.bitstreams){const e=await this.readPacket(t.bosPage,0);e&&(e.data.byteLength>=7&&1===e.data[0]&&118===e.data[1]&&111===e.data[2]&&114===e.data[3]&&98===e.data[4]&&105===e.data[5]&&115===e.data[6]?await this.readVorbisMetadata(e,t):e.data.byteLength>=8&&79===e.data[0]&&112===e.data[1]&&117===e.data[2]&&115===e.data[3]&&72===e.data[4]&&101===e.data[5]&&97===e.data[6]&&100===e.data[7]&&await this.readOpusMetadata(e,t),null!==t.codecInfo.codec&&this.trackBackings.push(new aa(t,this)))}})())}async readVorbisMetadata(e,t){let i=await this.findNextPacketStart(e);if(!i)return;const r=await this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;if(i=await this.findNextPacketStart(r),!i)return;const a=await this.readPacket(i.startPage,i.startSegmentIndex);if(!a)return;if(3!==r.data[0]||5!==a.data[0])return;const s=[],n=e=>{for(;s.push(Math.min(255,e)),!(e<255);)e-=255};n(e.data.length),n(r.data.length);const o=new Uint8Array(1+s.length+e.data.length+r.data.length+a.data.length);o[0]=2,o.set(s,1),o.set(e.data,1+s.length),o.set(r.data,1+s.length+e.data.length),o.set(a.data,1+s.length+e.data.length+r.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=a;const c=f(e.data);t.numberOfChannels=c.getUint8(11),t.sampleRate=c.getUint32(12,!0);const l=c.getUint8(28);t.codecInfo.vorbisInfo={blocksizes:[1<<(15&l),1<<(l>>4)],modeBlockflags:wt(a.data).modeBlockflags},Pt(r.data.subarray(7),this.metadataTags)}async readOpusMetadata(e,t){const i=await this.findNextPacketStart(e);if(!i)return;const r=await this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=r;const a=(e=>{const t=f(e),i=t.getUint8(9),r=t.getUint16(10,!0),a=t.getUint32(12,!0),s=t.getInt16(16,!0),n=t.getUint8(18);let o=null;return n&&(o=e.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:a,outputGain:s,channelMappingFamily:n,channelMappingTable:o}})(e.data);t.numberOfChannels=a.outputChannelCount,t.sampleRate=ri,t.codecInfo.opusInfo={preSkip:a.preSkip},Pt(r.data.subarray(8),this.metadataTags)}async readPacket(e,t){n(te+t.length,0);if(0===c)return null;const l=new Uint8Array(c);let u=0;for(let n=0;n{let t="audio/ogg";e.codecStrings&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({codecStrings:(await Promise.all(this.trackBackings.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)))).filter(Boolean)})}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}class aa{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new I,this.internalSampleRate="opus"===e.codecInfo.codec?ri:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return n(-1!==e),e+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}async getDecoderConfig(){return n(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:this.bitstream.description??void 0}}getName(){return null}getLanguageCode(){return q}getDisposition(){return{...xe,primary:!1}}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(n(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:a}=Jr(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new bi(i.metadataOnly?yi:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,r/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:r,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:a}),s}async getFirstPacket(e){n(this.bitstream.lastMetadataPacket);const t=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let i=0;"opus"===this.bitstream.codecInfo.codec&&(n(this.bitstream.codecInfo.opusInfo),i-=this.bitstream.codecInfo.opusInfo.preSkip);const r=await this.demuxer.readPacket(t.startPage,t.startSegmentIndex);return this.createEncodedPacketFromOggPacket(r,{timestampInSamples:i,vorbisLastBlocksize:null},e)}async getNextPacket(e,t){const i=this.encodedPacketToMetadata.get(e);if(!i)throw new Error("Packet was not created from this track.");const r=await this.demuxer.findNextPacketStart(i.packet);if(!r)return null;const a=i.timestampInSamples+i.durationInSamples,s=await this.demuxer.readPacket(r.startPage,r.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:a,vorbisLastBlocksize:i.vorbisBlockSize},t)}async getPacket(e,t){if(null===this.demuxer.reader.fileSize)return this.getPacketSequential(e,t);const i=W(e*this.internalSampleRate);if(0===i)return this.getFirstPacket(t);if(i<0)return null;n(this.bitstream.lastMetadataPacket);const r=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!r)return null;let a=r.startPage,s=this.demuxer.reader.fileSize;const o=[a];e:for(;a.headerStartPos+a.totalSizei?s=u.headerStartPos:(a=u,o.push(u));continue e}r=u.headerStartPos+u.totalSize}}let c=r.startPage;for(const n of o){if(n.granulePosition===a.granulePosition)break;(!c||n.headerStartPos>c.headerStartPos)&&(c=n)}let l=c;const u=[l];for(;l.serialNumber!==this.bitstream.serialNumber||l.granulePosition!==a.granulePosition;){const e=l.headerStartPos+l.totalSize;let t=this.demuxer.reader.requestSliceRange(e,Zr,ea);ce(t)&&(t=await t),n(t);const i=ta(t);n(i),l=i,l.serialNumber===this.bitstream.serialNumber&&u.push(l)}n(-1!==l.granulePosition);let d,h,f=null,m=l,p=0;if(l.headerStartPos===r.startPage.headerStartPos)d=this.granulePositionToTimestampInSamples(0),h=!0,f=0;else{d=0,h=!1;for(let t=l.lacingValues.length-1;t>=0;t--){if(l.lacingValues[t]<255){f=t+1;break}}if(null===f)throw new Error("Invalid page with granule position: no packets end on this page.");p=f-1;const e={data:yi,endPage:m,endSegmentIndex:p};if(await this.demuxer.findNextPacketStart(e)){const e=na(u,l,f);n(e);const t=sa(u,e.page,e.segmentIndex);t&&(l=t.page,f=t.segmentIndex)}else for(;;){const e=na(u,l,f);if(!e)break;const t=sa(u,e.page,e.segmentIndex);if(!t)break;if(l=t.page,f=t.segmentIndex,e.page.headerStartPos!==m.headerStartPos){m=e.page,p=e.segmentIndex;break}}}let g=null,k=null;for(;null!==l;){n(null!==f);const e=await this.demuxer.readPacket(l,f);if(!e)break;if(!(l.headerStartPos===r.startPage.headerStartPos&&fi||Math.max(a.timestampInSamples,0)===i))break}const a=await this.demuxer.findNextPacketStart(e);if(!a)break;l=a.startPage,f=a.startSegmentIndex}return g}async getPacketSequential(e,t){const i=await this.sequentialScanMutex.acquire();try{const i=W(e*this.internalSampleRate);e=i/this.internalSampleRate;const r=_(this.sequentialScanCache,i,e=>e.timestampInSamples);let a;if(-1!==r){const e=this.sequentialScanCache[r];a=this.createEncodedPacketFromOggPacket(e.packet,{timestampInSamples:e.timestampInSamples,vorbisLastBlocksize:e.vorbisLastBlockSize},t)}else a=await this.getFirstPacket(t);let s=0;for(;a&&a.timestampe)break;if(a=i,s++,100===s){s=0;const e=this.encodedPacketToMetadata.get(a);n(e),this.sequentialScanCache.length>0&&n(c(this.sequentialScanCache).timestampInSamples<=e.timestampInSamples),this.sequentialScanCache.push(e)}}return a}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const sa=(e,t,i)=>{let r=t,a=i;e:for(;;){for(a--;a>=0;a--){if(r.lacingValues[a]<255){a++;break e}}n(-1===a);if(!(1&r.headerType)){a=0;break}const t=D(e,e=>e.headerStartPos{if(i>0)return{page:t,segmentIndex:i-1};const r=D(e,e=>e.headerStartPos{let e=this.reader.requestSlice(0,12);ce(e)&&(e=await e),n(e);const t=Do(e,4),i="RIFX"!==t,r="RF64"===t,a=Po(e,i);let s=r?this.reader.fileSize:Math.min(a+8,this.reader.fileSize??1/0);if("WAVE"!==Do(e,4))throw new Error("Invalid WAVE file - wrong format");let o=0,c=null,l=e.filePos;for(;null===s||l=18&&357!==a){const e=wo(r,i),s=t-18;if(Math.min(s,e)>=22&&a===oa.EXTENSIBLE){r.skip(6);const e=yo(r,16);a=e[0]|e[1]<<8}}if(a!==oa.MULAW&&a!==oa.ALAW||(c=8),a!==oa.PCM&&a!==oa.IEEE_FLOAT&&a!==oa.ALAW&&a!==oa.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${a}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(a===oa.PCM&&![8,16,24,32].includes(c))throw new Error(`Unsupported WAVE PCM bit depth (${c}). Only 8, 16, 24, and 32 bits are supported.`);if(a===oa.IEEE_FLOAT&&![32,64].includes(c))throw new Error(`Unsupported WAVE float bit depth (${c}). Only 32 and 64 bits are supported.`);this.audioInfo={format:a,numberOfChannels:s,sampleRate:n,sampleSizeInBytes:Math.ceil(c/8),blockSizeInBytes:o}}async parseListChunk(e,t,i){var r,a,s,n,o,c,l,u,d,h,f;let m=this.reader.requestSlice(e,t);if(ce(m)&&(m=await m),!m)return;const p=Do(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=Do(m,4),t=Po(m,i),p=yo(m,t);let k=0;for(let i=0;i0&&((c=this.metadataTags).trackNumber??(c.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&((l=this.metadataTags).tracksTotal??(l.tracksTotal=i))}break;case"ICRD":case"IDIT":{const e=new Date(y);Number.isNaN(e.getTime())||((u=this.metadataTags).date??(u.date=e))}break;case"YEAR":{const e=Number.parseInt(y,10);Number.isInteger(e)&&e>0&&((d=this.metadataTags).date??(d.date=new Date(e,0,1)))}break;case"IGNR":case"GENR":(h=this.metadataTags).genre??(h.genre=y);break;case"ICMT":case"CMNT":case"COMM":(f=this.metadataTags).comment??(f.comment=y)}g+=8+t+(1&t)}}async parseId3Chunk(e,t){let i=this.reader.requestSlice(e,t);if(ce(i)&&(i=await i),!i)return;const r=jo(i);if(r){const a=t-qo;if(r.size=Math.min(r.size,a),r.size>0){const t=i.slice(e+qo,r.size);Ko(t,r,this.metadataTags)}}}getCodec(){if(n(this.audioInfo),this.audioInfo.format===oa.MULAW)return"ulaw";if(this.audioInfo.format===oa.ALAW)return"alaw";if(this.audioInfo.format===oa.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}if(this.audioInfo.format===oa.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}n(!1)}async getMimeType(){return"audio/wav"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}const ua=2048;class da{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return n(this.demuxer.audioInfo),this.demuxer.audioInfo.format}async getDecoderConfig(){const e=this.demuxer.getCodec();return e?(n(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null}getNumberOfChannels(){return n(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return n(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return n(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return n(-1!==this.demuxer.dataSize),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return q}getDisposition(){return{...xe}}async getPacketAtIndex(e,t){n(e>=0),n(this.demuxer.audioInfo);const i=e*ua*this.demuxer.audioInfo.blockSizeInBytes;if(i>=this.demuxer.dataSize)return null;const r=Math.min(ua*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-i);if(null===this.demuxer.reader.fileSize){let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);if(ce(e)&&(e=await e),!e)return null}let a;if(t.metadataOnly)a=yi;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);ce(e)&&(e=await e),n(e),a=yo(e,r)}const s=e*ua/this.demuxer.audioInfo.sampleRate,o=r/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(e,this.demuxer.lastKnownPacketIndex),new bi(a,"key",s,o,e,r)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getPacket(e,t){n(this.demuxer.audioInfo);const i=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/ua,(this.demuxer.dataSize-1)/(ua*this.demuxer.audioInfo.blockSizeInBytes)));if(i<0)return null;const r=await this.getPacketAtIndex(i,t);if(r)return r;if(0===i)return null;n(null===this.demuxer.reader.fileSize);let a=await this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,t);for(;a;){const e=await this.getNextPacket(a,t);if(!e)break;a=e}return a}getNextPacket(e,t){n(this.demuxer.audioInfo);const i=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/ua);return this.getPacketAtIndex(i+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const ha=e=>{const t=e.filePos,i=yo(e,9),r=new Ce(i);if(4095!==r.readBits(12))return null;r.skipBits(1);if(0!==r.readBits(2))return null;const a=r.readBits(1),s=r.readBits(2)+1,n=r.readBits(4);if(15===n)return null;r.skipBits(1);const o=r.readBits(3);if(0===o)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const c=r.readBits(13);r.skipBits(11);const l=r.readBits(2)+1;if(1!==l)throw new Error("ADTS frames with more than one AAC frame are not supported.");let u=null;return 1===a?e.filePos-=2:u=r.readBits(16),{objectType:s,samplingFrequencyIndex:n,channelConfiguration:o,frameLength:c,numberOfAacFrames:l,crcCheck:u,startPos:t}},fa=1024;class ma extends ki{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new I,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();n(this.firstFrameHeader),this.trackBackings=[new pa(this)]})())}async advanceReader(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,qo);if(ce(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=jo(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(ce(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=ha(e);if(!t)return void(this.lastSampleLoaded=!0);if(null!==this.reader.fileSize&&t.startPos+t.frameLength>this.reader.fileSize)return void(this.lastSampleLoaded=!0);this.firstFrameHeader||(this.firstFrameHeader=t);const i=Be[t.samplingFrequencyIndex];n(void 0!==i);const r=fa/i,a={timestamp:this.nextTimestampInSamples/i,duration:r,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(a),this.nextTimestampInSamples+=fa,this.lastLoadedPos=t.startPos+t.frameLength}async getMimeType(){return"audio/aac"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0;for(;;){let t=this.reader.requestSlice(e,qo);if(ce(t)&&(t=await t),!t)break;const i=jo(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(ce(r)&&(r=await r),!r)break;Ko(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}}}class pa{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/fa}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return q}getCodec(){return"aac"}getInternalCodecId(){return n(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){n(this.demuxer.firstFrameHeader);const e=Ee[this.demuxer.firstFrameHeader.channelConfiguration];return n(void 0!==e),e}getSampleRate(){n(this.demuxer.firstFrameHeader);const e=Be[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return n(void 0!==e),e}getDisposition(){return{...xe}}async getDecoderConfig(){return n(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}}async getPacketAtIndex(e,t){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=yi;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(ce(e)&&(e=await e),!e)return null;r=yo(e,i.dataSize)}return new bi(r,"key",i.timestamp,i.duration,e,i.dataSize)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=E(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}}async getPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=_(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1{var e;let t=0;for(;;){let e=this.reader.requestSlice(t,qo);if(ce(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const i=jo(e);if(!i)break;let r=this.reader.requestSlice(e.filePos,i.size);ce(r)&&(r=await r),n(r),Ko(r,i,this.metadataTags),t=e.filePos+i.size}for(t+=4;null===this.reader.fileSize||ts.end-6)return{num:o.num,blockSize:o.blockSize,sampleRate:o.sampleRate,size:s.end-e,isLastFrame:!0};if(255===bo(s)){const t=s.filePos;if(bo(s)!==(1===this.blockingBit?249:248)){s.filePos=t;continue}s.skip(-2);const i=s.filePos-e,r=this.readFlacFrameHeader({slice:s,isFirstPacket:!1});if(!r){s.filePos=t;continue}if(0===this.blockingBit){if(r.num-o.num!==1){s.filePos=t;continue}}else if(r.num-o.num!==o.blockSize){s.filePos=t;continue}return{num:o.num,blockSize:o.blockSize,sampleRate:o.sampleRate,size:i,isLastFrame:!1}}}}readFlacFrameHeader({slice:e,isFirstPacket:t}){const i=e.filePos,r=yo(e,4),a=new Ce(r);if(32764!==a.readBits(15))return null;if(null===this.blockingBit){n(t);const e=a.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){n(!t);if(1!==a.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");n(!t);if(0!==a.readBits(1))return null}const s=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*2**e:6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?2**e:null)(a.readBits(4));if(!s)return null;n(this.audioInfo);const o=((e,t)=>{switch(e){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}})(a.readBits(4),this.audioInfo.sampleRate);if(!o)return null;a.readBits(4),a.readBits(3);if(0!==a.readBits(1))return null;const c=(e=>{let t=0;const i=new Ce(yo(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],a=t-1,s=new Ce(yo(e,a)),n=8-t-1;for(let o=0;oe|t<"uncommon-u16"===t?To(e)+1:"uncommon-u8"===t?bo(e)+1:"number"===typeof t?t:(N(t),void n(!1)))(e,s),u=((e,t)=>"uncommon-u16"===t?To(e):"uncommon-u16-10"===t?10*To(e):"uncommon-u8"===t?bo(e):"number"===typeof t?t:null)(e,o);if(null===u)return null;if(u!==this.audioInfo.sampleRate)return null;const d=e.filePos-i,h=bo(e);e.skip(-d),e.skip(-1);const f=(e=>{let t=0;for(const i of e){t^=i;for(let e=0;e<8;e++)0!==(128&t)?t=t<<1^7:t<<=1,t&=255}return t})(yo(e,d));return h!==f?null:{num:c,blockSize:l,sampleRate:u}}async advanceReader(){await this.readMetadata(),n(null!==this.lastLoadedPos),n(this.audioInfo);const e=this.lastLoadedPos,t=await this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length});if(!t)return void(this.lastSampleLoaded=!0);const i=this.loadedSamples[this.loadedSamples.length-1],r={blockOffset:i?i.blockOffset+i.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size};this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(r),t.isLastFrame&&(this.lastSampleLoaded=!0)}}class ka{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return n(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return n(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return q}getTimeResolution(){return n(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return n(this.demuxer.audioInfo),0===this.demuxer.audioInfo.totalSamples?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getDisposition(){return{...xe}}async getDecoderConfig(){return n(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}}async getPacket(e,t){if(n(this.demuxer.audioInfo),e<0)return null;const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=_(this.demuxer.loadedSamples,e,e=>e.blockOffset/this.demuxer.audioInfo.sampleRate);if(-1===i){await this.demuxer.advanceReader();continue}const r=this.demuxer.loadedSamples[i],a=r.blockOffset/this.demuxer.audioInfo.sampleRate;if(!(a+r.blockSize/this.demuxer.audioInfo.sampleRate<=e))return this.getPacketAtIndex(i,t);if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t);await this.demuxer.advanceReader()}}finally{i()}}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=e.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&i>=this.demuxer.loadedSamples.length)return null;for(;i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(i,t)}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}async getPacketAtIndex(e,t){const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=yi;else{let e=this.demuxer.reader.requestSlice(i.byteOffset,i.byteSize);if(ce(e)&&(e=await e),!e)return null;r=yo(e,i.byteSize)}n(this.demuxer.audioInfo);const a=i.blockOffset/this.demuxer.audioInfo.sampleRate,s=i.blockSize/this.demuxer.audioInfo.sampleRate;return new bi(r,"key",a,s,e,i.byteSize)}async getFirstPacket(e){for(;0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(0,e)}}const ya=9e4,ba=2**33,wa=188,Ta="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",Sa=new Set([133,134,162]),va=new Set;class Pa extends ki{constructor(e){super(e),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5242880,this.minReferencePointByteDistance=-1,this.timestampWrapInfo=null,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=this.reader.requestSlice(0,205);ce(e)&&(e=await e),n(e);const t=yo(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=wa;else if(71===t[0]&&71===t[204])this.packetOffset=0,this.packetStride=204;else{if(71!==t[4]||71!==t[196])throw new Error("Unreachable.");this.packetOffset=4,this.packetStride=192}this.minReferencePointByteDistance=256*this.packetStride;let i=this.packetOffset,r=null,a=!1,s=!1;for(;;){const e=await this.readPacketHeader(i);if(!e)break;if(0===e.payloadUnitStartIndicator){i+=this.packetStride;continue}if(s&&!this.elementaryStreams.some(t=>t.pid===e.pid)){i+=this.packetStride;continue}const t=await this.readSection(i,!0,!s);if(!t)break;const o=3,c=32;let l=!1;if(!s&&0!==t.pid){if(!(0===t.payload[0]&&0===t.payload[1]&&1===t.payload[2])){const e=new Ce(t.payload),i=e.readAlignedByte();e.skipBits(8*i);l=2===e.readBits(8)}}if(0!==t.pid||a)if(t.pid!==r&&!l||s){const e=this.elementaryStreams.find(e=>e.pid===t.pid);e:if(e&&!e.initialized){const i=xa(this,t,!0);if(!i)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${e.pid}`);if(e.firstSection=t,e.canBeTrustedWithKeyPackets=1===t.randomAccessIndicator,this.input._initInput){const i=(await this.input._initInput._getDemuxer()).elementaryStreams.find(i=>i.pid===t.pid&&i.info.codec===e.info.codec);if(i){e.info=i.info,e.initialized=!0;break e}}const r=new Ra(e,i);if("video"===e.info.type){for(;;){if(r.suppliedPacket=null,await r.markNextPacket(),"avc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(e.info.avcCodecInfo=Xe(r.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];n(t);const i=Ye(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight;const a=i.pixelAspectRatio.num,s=i.pixelAspectRatio.den;a>0&&s>0&&(a>s?(e.info.squarePixelWidth=Math.round(e.info.width*a/s),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*s/a))),e.info.colorSpace={primaries:k[i.colourPrimaries],transfer:b[i.transferCharacteristics],matrix:T[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}if("hevc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(e.info.hevcCodecInfo=rt(r.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===Oe.SPS_NUT).nalUnits[0];n(t);const i=it(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight,i.pixelAspectRatio.num>i.pixelAspectRatio.den?(e.info.squarePixelWidth=Math.round(e.info.width*i.pixelAspectRatio.num/i.pixelAspectRatio.den),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*i.pixelAspectRatio.den/i.pixelAspectRatio.num)),e.info.colorSpace={primaries:k[i.colourPrimaries],transfer:b[i.transferCharacteristics],matrix:T[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:ei({width:e.info.width,height:e.info.height,codec:e.info.codec,codecDescription:null,colorSpace:e.info.colorSpace,avcType:1,avcCodecInfo:e.info.avcCodecInfo,hevcCodecInfo:e.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:e.info.width,codedHeight:e.info.height,colorSpace:e.info.colorSpace},e.info.width===e.info.squarePixelWidth&&e.info.height===e.info.squarePixelHeight||(e.info.decoderConfig.displayAspectWidth=e.info.squarePixelWidth,e.info.decoderConfig.displayAspectHeight=e.info.squarePixelHeight),e.initialized=!0}else{if(await r.markNextPacket(),!r.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${e.pid}`);if("aac"===e.info.codec){const t=go.tempFromBytes(r.suppliedPacket.data),i=ha(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=Ee[i.channelConfiguration],e.info.sampleRate=Be[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=Io(go.tempFromBytes(r.suppliedPacket.data)),i=hi(t,r.suppliedPacket.data.byteLength);if(!i.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");e.info.numberOfChannels=gi(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=xt(r.suppliedPacket.data);if(!t)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(3===t.fscod)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=It[t.acmod]+t.lfeon,e.info.sampleRate=Ae[t.fscod]}else if("eac3"===e.info.codec){const t=Et(r.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=_t(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Rt(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=Ut(r.suppliedPacket.data);if(!t)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");e.info.numberOfChannels=t.numberOfChannels,e.info.sampleRate=t.sampleRate,t.core&&(e.info.dtsFormat=t.hasExtensions?"dtsh":"dtsc")}}e.info.decoderConfig={codec:ii({codec:e.info.codec,codecDescription:null,aacCodecInfo:e.info.aacCodecInfo,dtsFormat:e.info.dtsFormat}),numberOfChannels:e.info.numberOfChannels,sampleRate:e.info.sampleRate},e.initialized=!0}}}else{const e=new Ce(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(12);const r=e.readBits(12);e.skipBits(43),e.readBits(13),e.skipBits(6);const a=e.readBits(10),n=e.pos+8*a;let l=!1;for(;e.pos=4){const t=e.readBits(32);l||(l=1212435798===t||1212436562===t)}e.pos=r}for(e.pos=n;8*(r+o)-e.pos>c;){const t=e.readBits(8);e.skipBits(3);const i=e.readBits(13);e.skipBits(6);const r=e.readBits(10),a=e.pos+8*r;let s=!1,n=!1,o=!1;for(;e.pos=4){const t=e.readBits(32);o||(o=1146376960===(4294967040&t))}e.pos=r}let c=null;const u=l&&Sa.has(t)?130:t;switch(u){case 27:case 36:c={type:"video",codec:27===t?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let e;e=3===u||4===u?"mp3":15===u?"aac":129===u?"ac3":135===u?"eac3":"dts",c={type:"audio",codec:e,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:n?c={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:s?c={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:o&&(c={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:va.has(t)||(ve._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),va.add(t))}c&&this.elementaryStreams.push({demuxer:this,pid:i,streamType:t,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:c,referencePesPackets:[]})}s=!0}else{const e=new Ce(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(14);const s=e.readBits(10);for(e.skipBits(40);8*(s+o)-e.pos>c;){const t=e.readBits(16);e.skipBits(3);const i=e.readBits(13);if(0!==t){if(null!==r)throw new Error("Only files with a single program are supported.");r=i}}if(null===r)throw new Error("Program Association Table must link to a Program Map Table.");a=!0}if(s&&this.elementaryStreams.every(e=>e.initialized))break;i+=this.packetStride}if(!s){if(!a)throw new Error("No Program Association Table found in the file.");throw new Error("No Program Map Table found in the file.")}for(const n of this.elementaryStreams)n.initialized&&("video"===n.info.type?this.trackBackingEntries.push(new Ba(n)):this.trackBackingEntries.push(new Ea(n)))})())}async getTrackBackings(){return await this.readMetadata(),this.trackBackingEntries}async getMetadataTags(){return{}}async getMimeType(){await this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${i.join(", ")}"`),t})(await Promise.all(this.trackBackingEntries.map(e=>e.getDecoderConfig().then(e=>e?.codec??null))))}async readSection(e,t,i=!1){let r=e,a=e;const s=[];let n,o=0,c=null,l=!0,u=0;for(;;){const e=await this.readPacket(a);if(a+=this.packetStride,!e)break;if(c){if(e.pid!==c.pid){if(i)break;continue}if(1===e.payloadUnitStartIndicator)break}else{if(0===e.payloadUnitStartIndicator)break;c=e}const n=!!(2&e.adaptationFieldControl),d=!!(1&e.adaptationFieldControl);let h=0;if(n&&(h=1+e.body[0],e===c&&h>1&&(u=e.body[1]>>6&1)),d&&(0===h?(s.push(e.body),o+=e.body.byteLength):(s.push(e.body.subarray(h)),o+=e.body.byteLength-h)),r=a,!t&&o>=64){l=!1;break}if(-1!==E(this.sectionEndPositions,r,e=>e)){l=!1;break}}if(l){const e=_(this.sectionEndPositions,r,e=>e);this.sectionEndPositions.splice(e+1,0,r)}if(!c)return null;if(1===s.length)n=s[0];else{const e=s.reduce((e,t)=>e+t.length,0);n=new Uint8Array(e);let t=0;for(const i of s)n.set(i,t),t+=i.length}return{startPos:e,endPos:t?r:null,pid:c.pid,payload:n,randomAccessIndicator:u}}async readPacketHeader(e){let t=this.reader.requestSlice(e,4);if(ce(t)&&(t=await t),!t)return null;if(71!==bo(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=To(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:bo(t)>>4&3}}async readPacket(e){let t=this.reader.requestSlice(e,wa);if(ce(t)&&(t=await t),!t)return null;const i=yo(t,wa);if(71!==i[0])throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const r=(i[1]<<8)+i[2];return{payloadUnitStartIndicator:r>>14&1,pid:8191&r,adaptationFieldControl:i[3]>>4&3,body:i.subarray(4)}}normalizeTimestamp(e){if(!this.timestampWrapInfo){const t=54e5;this.timestampWrapInfo={reference:e-t,offset:e>=ba-t?-8589934592:ba}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e{if(t.payload.byteLength<3)return null;const r=new Ce(t.payload);if(1!==r.readBits(24))return null;const a=r.readBits(8);if(r.skipBits(16),188===a||190===a||191===a||240===a||241===a||255===a||242===a||248===a)return null;r.skipBits(8);const s=r.readBits(2);r.skipBits(14);let n=null;if(2===s||3===s)n=0,r.skipBits(4),n+=r.readBits(3)*(1<<30),r.skipBits(1),n+=32768*r.readBits(15),r.skipBits(1),n+=r.readBits(15),n=e.normalizeTimestamp(n);else if(i)throw new Error(Ta);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:n,randomAccessIndicator:t.randomAccessIndicator}},xa=(e,t,i)=>{n(null!==t.endPos);const r=Ia(e,t,i);if(!r)return null;const a=new Ce(t.payload);a.skipBits(32);const s=a.readBits(16);a.skipBits(16);const o=a.readBits(8),c=a.pos+8*o;a.pos=c;const l=c/8;n(Number.isInteger(l));const u=t.payload.subarray(l,s>0?6+s:t.payload.byteLength);return{...r,data:u}};class Ca{constructor(e){this.elementaryStream=e,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const e=this.elementaryStream.demuxer,t=this.elementaryStream.info.type;let i=0;for(const r of e.trackBackingEntries)if(r.getType()===t&&i++,n(r instanceof Ca),r.elementaryStream===this.elementaryStream)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return q}getDisposition(){return{...xe,primary:!1}}getTimeResolution(){return ya}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}createEncodedPacket(e,t,i){let r;return r=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new bi(i.metadataOnly?yi:e.data,r,e.pts/ya,Math.max(t/ya,0),e.sequenceNumber,e.data.byteLength)}async getFirstPacket(e){const t=this.elementaryStream.firstSection;n(t);const i=xa(this.elementaryStream.demuxer,t,!0);n(i);const r=new Ra(this.elementaryStream,i),a=new Fa(this,r),s=await a.readNext();if(!s)return null;const o=this.createEncodedPacket(s.packet,s.duration,e);return this.packetBuffers.set(o,a),this.packetSectionStarts.set(o,s.packet.sectionStartPos),o}async getNextPacket(e,t){let i=this.packetBuffers.get(e);if(i){const r=await i.readNext();if(!r)return null;this.packetBuffers.delete(e);const a=this.createEncodedPacket(r.packet,r.duration,t);return this.packetBuffers.set(a,i),this.packetSectionStarts.set(a,r.packet.sectionStartPos),a}const r=this.packetSectionStarts.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");const a=this.elementaryStream.demuxer,s=await a.readSection(r,!0);n(s);const o=xa(a,s,!0);n(o);const c=new Ra(this.elementaryStream,o);i=new Fa(this,c);const l=e.sequenceNumber;for(;;){const e=await i.readNext();if(!e)return null;if(e.packet.sequenceNumber>l){const r=this.createEncodedPacket(e.packet,e.duration,t);return this.packetBuffers.set(r,i),this.packetSectionStarts.set(r,e.packet.sectionStartPos),r}}}async getNextKeyPacket(e,t){let i=e;for(;;){if(i=await this.getNextPacket(i,t),!i)return null;if("key"===i.type)return i}}getPacket(e,t){return this.doPacketLookup(e,!1,t)}getKeyPacket(e,t){return this.doPacketLookup(e,!0,t)}async doPacketLookup(e,t,i){const r=W(e*ya),a=this.elementaryStream.demuxer,{reader:s,seekChunkSize:o}=a,l=this.elementaryStream.pid,u=async(e,t,i)=>{let r=e;for(;re.pts),g=-1!==p?m[p]:null;if(g&&r-g.pts<45e3)f=g.sectionStartPos;else{let e=0;if(null!==s.fileSize){const t=Math.ceil(s.fileSize/o);if(t>1){let i=0,s=t-1;for(e=i;i<=s;){const t=Math.floor((i+s)/2),n=j(t*o,a.packetStride)+h.sectionStartPos,c=n+o,l=await u(n,c,!1);l?l.pesPacketHeader.pts<=r?(e=t,i=t+1):s=t-1:s=t-1}}}f=j(e*o,a.packetStride)+h.sectionStartPos}const k=await u(f,s.fileSize??1/0,!1);let y=k?.pesPacketHeader??null;y||(y=h);const b=this.getReorderSize(),w=async(e,t)=>{const s=await a.readSection(e,!0);n(s);const o=xa(a,s,!0);n(o);const l=new Ra(this.elementaryStream,o),u=new Fa(this,l);for(;;){if((c(u.presentationOrderPackets)?.pts??-1/0)>=r)break;if(!(await u.readNextPacket()))break}const d=M(u.presentationOrderPackets,t);if(-1===d)return null;const h=u.presentationOrderPackets[d],f=0===d?0:h.pts-u.presentationOrderPackets[d-1].pts;for(;u.decodeOrderPackets[0]!==h;)u.decodeOrderPackets.shift();u.lastDuration=f;const m=await u.readNext();n(m);const p=this.createEncodedPacket(m.packet,m.duration,i);return this.packetBuffers.set(p,u),this.packetSectionStarts.set(p,m.packet.sectionStartPos),p};if(!t||this.allPacketsAreKeyPackets()){e:for(;;){let e=y.sectionStartPos+a.packetStride;for(;;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===l&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,!1);if(t){const e=Ia(a,t,!1);if(e&&null!==e.pts){if(e.pts>r)break e;y=e,_a(this.elementaryStream,y);break}}}e+=a.packetStride}}e:for(let e=0;e=a.packetOffset;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===l&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,!1);if(t){const e=Ia(a,t,!1);if(e&&null!==e.pts){y=e;break}}}e-=a.packetStride}}return w(y.sectionStartPos,e=>e.pts<=r)}{let e=f,t=null;const i=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let c=null;const f=e<=h.sectionStartPos;let m,p=null;if(f)m=h,p=d;else{const t=await u(e,s.fileSize??1/0,i);m=t?.pesPacketHeader??null,p=t?.section??null}let g=!1,k=0;e:for(;m&&!(null!==t&&m.sectionStartPos>=t);){if(m.pts<=r){let e;if(this.elementaryStream.canBeTrustedWithKeyPackets)e=1===m.randomAccessIndicator;else{n(p);const t=xa(a,p,!0);n(t);const i=new Ra(this.elementaryStream,t);await i.markNextPacket(),e=1===i.suppliedPacket?.randomAccessIndicator}e&&(c=m)}if(m.pts>r&&(g=!0),g&&(k++,k>b))break;let e=m.sectionStartPos+a.packetStride;for(;;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===l&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,i);if(t){const e=Ia(a,t,!1);if(e&&null!==e.pts){m=e,p=t,_a(this.elementaryStream,m);break}}}e+=a.packetStride}}if(c){let e=c;if(0===k)e:for(let r=0;r=a.packetOffset;){const r=await a.readPacketHeader(t);if(!r)break e;if(r.pid===l&&1===r.payloadUnitStartIndicator){const r=await a.readSection(t,i);if(r){const t=Ia(a,r,!1);if(t&&null!==t.pts){e=t;break}}}t-=a.packetStride}}const t=await w(e.sectionStartPos,e=>e.pts<=r&&1===e.randomAccessIndicator);return n(t),t}if(f)return null;t=e,e=Math.max(j(e-h.sectionStartPos-o,a.packetStride)+h.sectionStartPos,h.sectionStartPos)}}}}class Ba extends Ca{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}async getColorSpace(){return this.elementaryStream.info.colorSpace}async canBeTransparent(){return!1}async getDecoderConfig(){return n(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class Ea extends Ca{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}async getDecoderConfig(){return n(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const _a=(e,t)=>{const i=e.referencePesPackets,r=_(i,t.sectionStartPos,e=>e.sectionStartPos);if(r>=0){const a=i[r];if(t.pts<=a.pts)return!1;const s=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-a.sectionStartPos=e?e:this.bufferData(e-t).then(()=>Math.min(this.endPos-this.currentPos,e))}getCurrentPesPacket(){const e=this.pesPackets[this.currentPesPacketIndex];return n(e),e}async bufferData(e){const t=this.endPos+e;for(;this.endPos=u)break;d=e;const i=o+d;if(d+3>=u){this.seekTo(i);break}const h=c[d+1],f=c[d+2],m=c[d+3];let p=0;if(0===h&&0===f&&1===m?p=4:0===h&&1===f&&(p=3),0===p){d++;continue}const g=i;a??(a=g);const k=d+p,y=k+r,b=6;if(y+("avc"===t?b:1)>u){this.seekTo(i);break}const w=c[k];let T,S,v;if("avc"===t)T=We(w),S=T===Me.NON_IDR_SLICE||T===Me.SLICE_DPA||T===Me.IDR,v=T===Me.SEI||T===Me.SPS||T===Me.PPS||T===Me.AUD;else{T=tt(w);if(((1&w)<<5|c[k+1]>>3)>0){d+=p;continue}S=T<=Oe.RASL_R||T>=Oe.BLA_W_LP&&T<=21,v=T>=Oe.VPS_NUT&&T<=37||T===Oe.PREFIX_SEI_NUT||T>=41&&T<=44||T>=48&&T<=55}let P=!1;if(S){let e;if("avc"===t){const t=c.subarray(y,y+b),i=l(new Ce(t));e=!s||i<=n,n=i}else e=c[y]>>7===1;e&&(s?P=!0:s=!0)}else v&&s&&(P=!0);if(P){const e=g-a;return this.seekTo(a),this.supplyPacket(e,0)}d+=p}if(ea){const e=this.endPos-a;return this.seekTo(a),this.supplyPacket(e,0)}}else{const t=e.info.codec,i=128;for(;;){let r=this.ensureBuffered(i);ce(r)&&(r=await r);const a=this.currentPos;for(;this.currentPos-a>6,o=63&a[4];if(3===s||o>37){this.seekTo(t+1);continue}const c=Ct[3*o+s];n(void 0!==c),this.seekTo(t),r=this.ensureBuffered(c),ce(r)&&(r=await r);const l=Math.round(13824e4/e.info.sampleRate);return this.supplyPacket(r,l)}if("eac3"===t){if(11!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(5);if(ce(r)&&(r=await r),r<5)return;const a=this.readBytes(5);if(11!==a[0]||119!==a[1]){this.seekTo(t+1);continue}const s=2*(((7&a[2])<<8|a[3])+1),n=3===a[4]>>6?3:a[4]>>4&3,o=Bt[n];this.seekTo(t),r=this.ensureBuffered(s),ce(r)&&(r=await r);const c=256*o,l=Math.round(c*ya/e.info.sampleRate);return this.supplyPacket(r,l)}if("dts"===t){if(127!==i&&100!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(18);if(ce(r)&&(r=await r),r<18)return;const a=this.readBytes(18),s=Wt(a);let n=s?null:Ht(a);if(!s&&!n){this.seekTo(t+1);continue}if(n&&!n.asset){this.seekTo(t);const e=Math.min(n.frameSize,4096);let i=this.ensureBuffered(e);ce(i)&&(i=await i),n=Ht(this.readBytes(i))??n}let o=s?s.frameSize:n.frameSize;if(s){let e=4*Math.ceil(s.frameSize/4);for(;;){this.seekTo(t);const i=e+10;let r=this.ensureBuffered(i);if(ce(r)&&(r=await r),r=0)}async readNext(){if(0===this.decodeOrderPackets.length){if(!(await this.readNextPacket()))return null}await this.ensureCurrentPacketHasNext();const e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e);let i;if(n(-1!==t),t===this.presentationOrderPackets.length-1)i=this.lastDuration;else{i=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=i}for(this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const e=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(e))break;this.presentationOrderPackets.shift()}return{packet:e,duration:i}}async readNextPacket(){if(this.reachedEnd)return!1;let e;return this.context.suppliedPacket||await this.context.markNextPacket(),e=this.context.suppliedPacket,this.context.suppliedPacket=null,e?(this.decodeOrderPackets.push(e),this.processPacketThroughReorderBuffer(e),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)}async ensureCurrentPacketHasNext(){const e=this.decodeOrderPackets[0];for(n(e);;){const t=this.presentationOrderPackets.indexOf(e);if(-1!==t&&t<=this.presentationOrderPackets.length-2)break;if(!(await this.readNextPacket()))break}}processPacketThroughReorderBuffer(e){if(this.reorderBuffer.push(e),this.reorderBuffer.length>this.reorderSize){let e=0;for(let i=1;ie.pts-t.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const Aa="application/vnd.apple.mpegurl",Da="#EXT-X-STREAM-INF:",Ma="#EXT-X-I-FRAME-STREAM-INF:",Na="#EXT-X-MEDIA:",Oa="#EXTINF:",La="#EXT-X-MAP:",za="#EXT-X-KEY:",Ua="#EXT-X-MEDIA-SEQUENCE:",qa="#EXT-X-BYTERANGE:",Wa="#EXT-X-PROGRAM-DATE-TIME:",Ha="#EXT-X-TARGETDURATION:",Va="#EXT-X-PLAYLIST-TYPE:",ja=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class Ka{constructor(e){this._attributes={};let t="",i="",r=!1,a=!1;for(let s=0;s{const e=[];if(this.trackDeclarations){for(const t of this.trackDeclarations)if("video"===t.type){const i=pe(e,e=>"video"===e.getType())+1;e.push(new Ga(this,t,i))}else if("audio"===t.type){const i=pe(e,e=>"audio"===e.getType())+1;e.push(new Qa(this,t,i))}}else{if(this.firstSegment=await this.getFirstSegment({}),!this.firstSegment)return[];const t=this.getInputForSegment(this.firstSegment),i=await t.getTracks();for(const r of i)if("video"===r.type){const t=pe(e,e=>"video"===e.getType())+1;e.push(new Ga(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=pe(e,e=>"audio"===e.getType())+1;e.push(new Qa(this,{id:e.length+1,type:"audio"},t))}}return e})())}async getFirstTimestampForInput(e){const t=this.firstTimestampCache.get(e);if(void 0!==t)return t;const i=await e.getFirstTimestamp();return this.firstTimestampCache.set(e,i),i}async getMediaOffset(e,t){const i=e.firstSegment??e;let r;if(this.firstSegmentFirstTimestamps.has(i))r=this.firstSegmentFirstTimestamps.get(i);else{const e=this.getInputForSegment(i);r=await this.getFirstTimestampForInput(e),this.firstSegmentFirstTimestamps.set(i,r)}if(i===e)return i.timestamp-r;const a=await this.getFirstTimestampForInput(t),s=e.timestamp-i.timestamp,n=a-r-s;return Math.abs(n)<=Math.min(.25,s)?i.timestamp-r:e.timestamp-a}dispose(){for(const e of this.inputCache)e.input.dispose();this.inputCache.length=0}}class $a{constructor(e,t,i){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.firstSegment=null,this.segmentedInput=e,this.decl=t,this.number=i}hydrate(){return this.hydrationPromise??(this.hydrationPromise=(async()=>{var e;if((e=this.segmentedInput).firstSegment??(e.firstSegment=await this.segmentedInput.getFirstSegment({})),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let t=this.segmentedInput.firstSegment,i=null;for(;t;){const e=this.segmentedInput.getInputForSegment(t);if(i=(await e.getTracks()).find(e=>e.type===this.decl.type&&e.number===this.number)??null,i)break;t=await this.segmentedInput.getNextSegment(t,{})}if(!i)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=i,this.firstSegment=t})())}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(e){return this.firstInputTrack?e():this.hydrate().then(e)}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}getHasOnlyKeyPackets(){return this.delegate(()=>this.firstInputTrack._backing.getHasOnlyKeyPackets?.()??null)}getPairingMask(){return 1n}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}async isRelativeToUnixEpoch(){return await this.hydrate(),n(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp}getUnixTimeForTimestamp(e){return this.segmentedInput.getUnixTimeForTimestamp(e)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(e){return this.segmentedInput.getDurationFromMetadata(e)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}async createAdjustedPacket(e,t,i){n(e.sequenceNumber>=0),n(this.segmentedInput.firstSegment);const r=await this.segmentedInput.getMediaOffset(t,i.input),a=t.timestamp-this.segmentedInput.firstSegment.timestamp,s=e.clone({timestamp:V(e.timestamp+r,await i.getTimeResolution()),sequenceNumber:Math.floor(1e8*a)+e.sequenceNumber});return this.packetInfos.set(s,{segment:t,track:i,sourcePacket:e}),s}async getFirstPacket(e){await this.hydrate(),n(this.firstInputTrack),n(this.firstSegment);let t=this.firstInputTrack,i=this.firstSegment;for(;;){if(t){const r=await t._backing.getFirstPacket(e);if(r)return this.createAdjustedPacket(r,i,t)}if(i=await this.segmentedInput.getNextSegment(i,{skipLiveWait:e.skipLiveWait}),!i)break;const r=this.segmentedInput.getInputForSegment(i);t=(await r.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number)??null}return null}getNextPacket(e,t){return this._getNextInternal(e,t,!1)}getNextKeyPacket(e,t){return this._getNextInternal(e,t,!0)}async _getNextInternal(e,t,i){const r=this.packetInfos.get(e);if(!r)throw new Error("Packet was not created from this track.");const a=i?await r.track._backing.getNextKeyPacket(r.sourcePacket,t):await r.track._backing.getNextPacket(r.sourcePacket,t);if(a)return this.createAdjustedPacket(a,r.segment,r.track);let s=r.segment;for(;;){const e=await this.segmentedInput.getNextSegment(s,{skipLiveWait:t.skipLiveWait});if(!e)return null;const i=this.segmentedInput.getInputForSegment(e),a=(await i.getTracks()).find(e=>e.type===r.track.type&&e.number===r.track.number);if(!a){s=e;continue}const n=await a._backing.getFirstPacket(t);return n?this.createAdjustedPacket(n,e,a):null}}getPacket(e,t){return this._getPacketInternal(e,t,!1)}getKeyPacket(e,t){return this._getPacketInternal(e,t,!0)}async _getPacketInternal(e,t,i){let r=await this.segmentedInput.getSegmentAt(e,{skipLiveWait:t.skipLiveWait});if(!r)return null;for(await this.hydrate();r;){const a=this.segmentedInput.getInputForSegment(r),s=(await a.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number);if(!s){r=await this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait});continue}const n=e-await this.segmentedInput.getMediaOffset(r,a),o=i?await s._backing.getKeyPacket(n,t):await s._backing.getPacket(n,t);if(o)return this.createAdjustedPacket(o,r,s);r=await this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait})}return null}}class Ga extends $a{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}async getColorSpace(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())}async canBeTransparent(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}class Qa extends $a{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}he();const Ya=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class Ja extends we{constructor(){super(),this._disposed=!1,this._refCount=0,this._usedForHls=!1,this._refFinalizationRegistry=null,this._sizePromise=null,this.onread=null,"undefined"!==typeof FinalizationRegistry&&(this._refFinalizationRegistry=new FinalizationRegistry(e=>{e._decrementRefCount()}))}async getSizeOrNull(){if(this._disposed)throw new mo;return this._sizePromise??(this._sizePromise=(async()=>{let e=this._getFileSize();return void 0!==e||(await this._read(0,1,0,Ya),e=this._getFileSize(),n(void 0!==e)),e})())}async getSize(){if(this._disposed)throw new mo;const e=await this.getSizeOrNull();if(null===e)throw new Error("Cannot determine the size of an unsized source.");return e}slice(e,t){if(!Number.isInteger(e)||e<0)throw new TypeError("offset must be a non-negative integer.");if(void 0!==t&&(!Number.isInteger(t)||t<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new fs(this,e,t)}_dispatchRead(e,t){this.onread?.(e,t),this._emit("read",{start:e,end:t})}ref(){return new Za(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class Za{constructor(e){if(this._freed=!1,e._disposed)throw new Error("Cannot ref a disposed source.");e._incrementRefCount(),e._refFinalizationRegistry?.register(this,e,this),this._source=e}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const e=this.source;n(e._refCount>0),e._decrementRefCount(),e._refFinalizationRegistry?.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class es extends Ja{constructor(e,t){if("string"!==typeof e)throw new TypeError("rootPath must be a string.");if("function"!==typeof t)throw new TypeError("requestHandler must be a function.");super(),this.rootPath=e,this.requestHandler=t}_resolveRequest(e){const t=this.requestHandler(e),i=e=>{var t;if(!(e instanceof Ja||e instanceof Za))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof Ja?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return ce(t)?t.then(i):i(t)}}const ts=(e,t)=>e.path===t.path;class is extends es{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(e,t,i,r){if(!this._root){if(!this._rootRequest){const e=this._resolveRequest({path:this.rootPath,isRoot:!0}),t=e=>{const t=e instanceof Ja?e.ref():e;return this._root=t,this._rootRequest=null,t};ce(e)?this._rootRequest=e.then(t):(t(e),n(this._root))}if(this._rootRequest)return this._rootRequest.then(a=>a.source._read(e,t,i,r))}return this._root.source._read(e,t,i,r)}_getFileSize(){if(this._root)return this._root.source._getFileSize()}_dispose(){this._root?this._root.free():this._rootRequest&&this._rootRequest.then(e=>e.free())}}const rs="undefined"!==typeof FinalizationRegistry?new FinalizationRegistry(e=>{e.cancel().catch(()=>{})}):null;class as extends Ja{constructor(e,t={}){if(!(e instanceof Blob))throw new TypeError("blob must be a Blob.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.maxCacheSize&&(!fe(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.useStreamReader&&"boolean"!==typeof t.useStreamReader)throw new TypeError("options.useStreamReader, when provided, must be a boolean.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(),this._readers=new WeakMap,this._blob=e,this._options=t,this._orchestrator=new hs({maxCacheSize:t.maxCacheSize??8388608,maxWorkerCount:4,runWorker:this._runWorker.bind(this),onIdleWorkerRemoved:e=>{const t=this._readers.get(e);t&&(this._readers.delete(e),rs?.unregister(e),t.cancel().catch(()=>{}))},prefetchProfile:ds.fileSystem,handleUnhandledError:t.handleUnhandledError}),this._orchestrator.fileSize=e.size}_getFileSize(){return this._orchestrator.fileSize}_read(e,t,i,r){return this._orchestrator.read(e,t,i,r)}async _runWorker(e){n(e.strictTarget);let t=this._readers.get(e);if(void 0===t){if("stream"in this._blob&&!te()&&!1!==this._options.useStreamReader){t=this._blob.slice(e.currentPos).stream().getReader(),rs?.register(e,t,e)}else t=null;this._readers.set(e,t)}for(;e.currentPos{if(t instanceof Error&&(t.message.includes("Failed to fetch")||t.message.includes("Load failed")||t.message.includes("NetworkError when attempting to fetch resource"))&&"undefined"!==typeof window){let e=null;try{"undefined"!==typeof window&&"undefined"!==typeof window.location&&(e=new URL(i instanceof Request?i.url:i,window.location.href).origin)}catch{}if(("undefined"===typeof navigator||"boolean"!==typeof navigator.onLine||navigator.onLine)&&null!==e&&e!==window.location.origin)return ve._warn("Request will not be retried because a CORS error was suspected due to different origins. You can modify this behavior by providing your own function for the 'getRetryDelay' option."),null}return Math.min(2**(e-2),16)},ns=new Set;class os extends es{constructor(e,t={}){if("string"!==typeof e&&!(e instanceof URL)&&!("undefined"!==typeof Request&&e instanceof Request))throw new TypeError("url must be a string, URL or Request.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.requestInit&&(!t.requestInit||"object"!==typeof t.requestInit))throw new TypeError("options.requestInit, when provided, must be an object.");if(void 0!==t.getRetryDelay&&"function"!==typeof t.getRetryDelay)throw new TypeError("options.getRetryDelay, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!fe(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.parallelism&&(!Number.isInteger(t.parallelism)||t.parallelism<1))throw new TypeError("options.parallelism, when provided, must be a positive number.");if(void 0!==t.fetchFn&&"function"!==typeof t.fetchFn)throw new TypeError("options.fetchFn, when provided, must be a function.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(e instanceof Request?e.url:e instanceof URL?e.href:e,e=>new os(e.path,this._options)),this._offset=0,this._length=null,this._fileSizeDetermined=!1,this._sequentialBacking=null,this._url=e,this._options=t,this._getRetryDelay=t.getRetryDelay??ss,this._requestInit={...t.requestInit};let i=null;if(t.requestInit?.headers){const e={...Y(t.requestInit.headers)},r=Object.keys(e).find(e=>"range"===e.toLowerCase());void 0!==r&&(i=e[r],delete e[r],this._requestInit.headers=e)}if(e instanceof Request){const t=e.headers.get("Range");if(null!==t){i??(i=t);const r=new Request(e);r.headers.delete("Range"),this._url=r}}if(null!==i){const e=ls(i);e&&(this._offset=e.offset,this._length=e.length)}this._orchestrator=new hs({maxCacheSize:t.maxCacheSize??67108864,maxWorkerCount:t.parallelism??2,runWorker:this._runWorker.bind(this),prefetchProfile:ds.network,handleUnhandledError:t.handleUnhandledError})}_getFileSize(){if(!this._fileSizeDetermined)return null!==this._length?this._length:void 0;const e=this._sequentialBacking?this._sequentialBacking._endIndex:this._orchestrator.fileSize;return null===e?null!==this._length?this._length:null:U(e-this._offset,0,this._length??1/0)}_read(e,t,i,r){if(null!==this._length&&t>this._length)return null;const a=this._offset,s=this._sequentialBacking?this._sequentialBacking._read(a+e,a+t):this._orchestrator.read(a+e,a+t,Math.max(a+i,a),a+Math.min(r,this._length??1/0)),n=e=>e?(e.offset-=this._offset,e):null;return ce(s)?s.then(n):n(s)}async _runWorker(e){for(;;){const i=new AbortController,r=await J(this._options.fetchFn??fetch,this._url,Q(this._requestInit,{headers:{Range:`bytes=${e.currentPos}-`},signal:i.signal}),this._getRetryDelay,()=>this._disposed);if(!r.ok)throw new Error(`Error fetching ${String(this._url)}: ${r.status} ${r.statusText}`);r.redirected&&(this.rootPath=r.url);e:if(null===this._orchestrator.fileSize&&(206===r.status||"basic"===r.type&&!r.headers.has("Content-Encoding"))){const t=r.headers.get("Content-Range");if(t){const e=/\/(\d+)/.exec(t);if(e){this._orchestrator.supplyFileSize(Number(e[1]));break e}}const i=r.headers.get("Content-Length");if(i){const t=206===r.status?e.currentPos:0;this._orchestrator.supplyFileSize(t+Number(i))}}if(this._fileSizeDetermined=!0,!r.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");if(206!==r.status){if(this._sequentialBacking)return void r.body.cancel();if(!this._usedForHls){const e=new URL(this._url instanceof Request?this._url.url:this._url,"undefined"!==typeof window?window.location.href:void 0);"null"===e.origin||e.pathname.endsWith(".m3u8")||e.pathname.endsWith(".m3u")||ns.has(e.origin)||(ve._warn(`HTTP server (origin ${e.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. Alternatively, set maxCacheSize to Infinity in the UrlSource options to keep the entire resource in memory.`),ns.add(e.origin))}return void this._transitionToSequentialMode(r.body)}const a=r.body.getReader();for(;;){if(e.currentPos>=e.targetPos||e.aborted)return i.abort(),void this._orchestrator.signalWorkerStoppedRunning(e);let r;try{r=await a.read()}catch(t){if(this._disposed)throw t;const e=this._getRetryDelay(1,t,this._url);if(null!==e){ve._error("Error while reading response stream. Attempting to resume.",t),await be(1e3*e);break}throw t}if(e.aborted)continue;const{done:s,value:n}=r;if(s){if(e.currentPos>=e.targetPos)return void this._orchestrator.onWorkerFinished(e);if(e.strictTarget)break;return void this._orchestrator.onWorkerFinished(e)}this._dispatchRead(e.currentPos,e.currentPos+n.length),this._orchestrator.supplyWorkerData(e,n)}}}_transitionToSequentialMode(e){let t=e.getReader(),i=0,r=0;const a=new ReadableStream({pull:async e=>{for(;;){let s;try{s=await t.read()}catch(a){if(this._disposed)throw a;const e=this._getRetryDelay(1,a,this._url);if(null===e)throw a;ve._error("Error while reading response stream. Attempting to resume.",a),await be(1e3*e);const s=await J(this._options.fetchFn??fetch,this._url,Q(this._requestInit,{headers:{Range:`bytes=${i}-`}}),this._getRetryDelay,()=>this._disposed);if(!s.ok)throw new Error(`Error fetching ${String(this._url)}: ${s.status} ${s.statusText}`);if(!s.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");t=s.body.getReader(),r=206===s.status?0:i;continue}if(s.done)return void e.close();let n=s.value;if(r>0){const e=Math.min(r,n.length);r-=e,n=n.subarray(e)}if(0!==n.length)return i+=n.length,void e.enqueue(n)}},cancel:()=>t.cancel()}),s=new us(a,{maxCacheSize:this._orchestrator.options.maxCacheSize,handleUnhandledError:this._options.handleUnhandledError});s._endIndex=this._orchestrator.fileSize,s._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. Because the HTTP server did not honor the range request, data can only be read sequentially, with old data being evicted from the cache. To fix this issue, either ensure your server responds to range requests with 206 Partial Content, or set maxCacheSize to Infinity in the UrlSource options. Note that the latter will store the entire file in the cache if needed, no matter how large.",s.on("read",({start:e,end:t})=>this._dispatchRead(e,t)),this._sequentialBacking=s;const o=new Set;for(const n of this._orchestrator.workers){for(const e of n.pendingSlices)o.add(e);n.aborted=!0,n.pendingSlices.length=0}for(const n of this._orchestrator.queuedReads)for(const e of n.pendingSlices)o.add(e);this._orchestrator.workers.length=0,this._orchestrator.queuedReads.length=0;for(const c of o){const e=s._read(c.start,c.start+c.bytes.length);ce(e)?e.then(e=>{e?(n(e.offset===c.start),c.resolve(e.bytes)):c.resolve(null)},e=>c.reject(e)):(n(null===e),c.resolve(null))}}_dispose(){this._orchestrator.dispose(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}}const cs=/^bytes=(\d+)-(\d*)$/,ls=e=>{const t=cs.exec(e.trim());if(!t)return null;const i=Number(t[1]),r=""===t[2]?null:Number(t[2]);return null!==r&&rthis._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);const i=_(this._cache,e,e=>e.start),r=-1!==i?this._cache[i]:null;if(r&&r.start<=e&&t<=r.end)return{bytes:r.bytes,view:r.view,offset:r.start};let a=e;const s=new Uint8Array(t-e);if(-1!==i)for(let l=i;l=t)break;const r=Math.max(e,i.start);r>a&&this._throwDueToCacheMiss();const n=Math.min(t,i.end);ra&&this._throwDueToCacheMiss();const{promise:n,resolve:o,reject:c}=F();return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:o,reject:c}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(e=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(t=>t.reject(e)),this._pendingSlices.length=0;else{if(!this._handleUnhandledError)throw e;this._handleUnhandledError(e)}})),n}_throwDueToCacheMiss(){throw new Error(this._cacheMissErrorMessage)}async _pull(){for(this._reader??(this._reader=this._stream.getReader());this._currentIndex0;){const e=this._cache[0];if(this._maxRequestedIndex-e.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=t.byteLength}this._pulling=!1}_dispose(){for(const e of this._pendingSlices)e.reject(new mo);this._pendingSlices.length=0,this._cache.length=0,this._reader?.cancel()}}const ds={fileSystem:(e,t)=>{const i=65536;return{start:e=Math.floor((e-i)/i)*i,end:t=Math.ceil((t+i)/i)*i}},network:(e,t,i)=>{const r=65536;e=Math.max(0,Math.floor((e-r)/r)*r);for(const a of i){const i=8388608,r=Math.max((a.startPos+a.targetPos)/2,a.targetPos-i);if(ue(e,t,r,a.targetPos)){const e=a.targetPos-a.startPos,r=Math.ceil((e+1)/i)*i,s=2**Math.ceil(Math.log2(e+1)),n=Math.min(s,r);t=Math.max(t,a.startPos+n)}}return{start:e,end:t=Math.max(t,e+524288)}}};class hs{constructor(e){this.options=e,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(e,t,i,r){n(!this.disposed);const a=this.options.prefetchProfile(e,t,this.workers),s=Math.max(a.start,i),o=Math.min(a.end,this.fileSize??1/0,r);n(s<=e&&t<=o);let c=null;const l=_(this.cache,e,e=>e.start),u=-1!==l?this.cache[l]:null;u&&u.start<=e&&t<=u.end&&(u.age=this.nextAge++,c={bytes:u.bytes,view:u.view,offset:u.start});const d=_(this.cache,s,e=>e.start),h=c?null:new Uint8Array(t-e);let m=0,p=s;const g=[];if(-1!==d){for(let i=d;i=o)break;if(r.end<=s)continue;const a=Math.max(s,r.start),c=Math.min(o,r.end);if(n(a<=c),p=h.length&&(c={bytes:h,view:f(h),offset:e}),0===g.length)return n(c),c;const{promise:k,resolve:y,reject:b}=F(),w=[];for(const n of g){const i=Math.max(e,n.start),r=Math.min(t,n.end);i===n.start&&r===n.end?w.push(n):ie.hole.start),i=-1!==t?this.queuedReads[t]:null;for(i&&n.start<=i.hole.end?(i.hole.end=Math.max(i.hole.end,n.end),i.strictTarget&&(i.strictTarget=e),T&&i.pendingSlices.push(T)):(t++,i={hole:{start:n.start,end:n.end},strictTarget:e,pendingSlices:T?[T]:[],age:this.nextAge++},this.queuedReads.splice(t,0,i));t+1i.hole.end)break;i.hole.end=Math.max(i.hole.end,e.hole.end),i.pendingSlices.push(...e.pendingSlices),i.strictTarget&&(i.strictTarget=e.strictTarget),i.age=Math.min(i.age,e.age),this.queuedReads.splice(t+1,1)}}}return c?k.catch(e=>{if(!this.disposed){if(!this.options.handleUnhandledError)throw e;this.options.handleUnhandledError(e)}}):(n(h),c=k.then(t=>t&&{bytes:t,view:f(t),offset:e})),c}checkHoleAgainstWorker(e,t,i){if(ue(t.start-2**17,t.start,e.currentPos,e.targetPos)){e.targetPos=Math.max(e.targetPos,t.end);for(let t=0;t=this.options.maxWorkerCount){let e=null,t=null;for(let i=0;i{if(e.running=!1,e.pendingSlices.length>0)e.pendingSlices.forEach(e=>e.reject(t)),e.pendingSlices.length=0;else if(!e.aborted&&!this.disposed){if(!this.options.handleUnhandledError)throw t;this.options.handleUnhandledError(t)}}).finally(()=>{if(!e.running&&this.queuedReads.length>0){let e=0;for(let r=1;re.targetPos&&(e.targetPos=e.currentPos,this.checkQueuedReadsAgainstWorker(e));for(let a=0;at.start&&(t.start=r),t.end<=t.start&&(s.holes.splice(e,1),e--)}0===s.holes.length&&(s.resolve(s.bytes),e.pendingSlices.splice(a,1),a--)}for(let a=0;ae){r.resolve(null),t.pendingSlices.splice(i,1),i--;break}}}for(let t=0;t=e){for(const e of i.pendingSlices)e.resolve(null);this.queuedReads.splice(t,1),t--}else if(i.hole.end>e){i.hole.end=e,i.strictTarget=!0;for(let t=0;t=e&&(r.resolve(null),i.pendingSlices.splice(t,1),t--)}}}}signalWorkerStoppedRunning(e){e.running=!1,e.aborted||(e.pendingSlices.length=0)}onWorkerFinished(e){const t=this.workers.indexOf(e);n(-1!==t),e.running=!1,this.workers.splice(t,1),this.options.onIdleWorkerRemoved?.(e),null===this.fileSize&&this.supplyFileSize(e.currentPos);for(const i of e.pendingSlices)i.resolve(null)}insertIntoCache(e){if(0===this.options.maxCacheSize)return;let t=_(this.cache,e.start,e=>e.start)+1;if(t>0){const i=this.cache[t-1];if(i.end>=e.end)return;if(i.end>e.start){const r=new Uint8Array(e.end-i.start);r.set(i.bytes,0),r.set(e.bytes,e.start-i.start),this.currentCacheSize+=e.end-i.end,i.bytes=r,i.view=f(r),i.end=e.end,t--,e=i}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length;for(let i=t+1;i=t.end){this.cache.splice(i,1),this.currentCacheSize-=t.bytes.length,i--;continue}const r=new Uint8Array(t.end-e.start);r.set(e.bytes,0),r.set(t.bytes,t.start-e.start),this.currentCacheSize-=e.end-t.start,e.bytes=r,e.view=f(r),e.end=t.end,this.cache.splice(i,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let e=0,t=this.cache[0];for(let i=1;ithis._length)return null;const a=this._baseSource._read(this._offset+e,this._offset+t,this._offset+i,this._offset+r),s=e=>e?(e.offset-=this._offset,e):null;return ce(a)?a.then(s):s(a)}_dispose(){this._ref?.free()}ref(){return this._ref??(this._ref=this._baseSource.ref()),super.ref()}}var ms=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,a;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(a=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");a&&(r=function(){try{a.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t},ps=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,a=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===a)return a=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return a|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else a|=1}catch(n){i(n)}if(1===a)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});const gs=/^0[xX][0-9a-fA-F]+$/,ks=/^data:.*;base64,/i;class ys extends Xa{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){return this.currentUpdateSegmentsPromise??(this.currentUpdateSegmentsPromise=(async()=>{try{const e=this.getRemainingWaitTimeMs();e>0&&await be(e),this.lastSegmentUpdateTime=performance.now(),await this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}})())}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}async updateSegments(){let e=this.nextLines;if(this.nextLines=null,!e){const t={stack:[],error:void 0,hasError:!1};try{const i=ms(t,await this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),r=new po(i.source),a=await r.requestEntireFile();n(a),e=Mo(a,a.length,{ignore:ja}),i.source instanceof es&&(this.rootPath=i.source.rootPath)}catch(T){t.error=T,t.hasError=!0}finally{ps(t)}}const t=!1!==this.input._formatOptions.hls?.offsetTimestampsByDateTime;let i=!1,r=0,a=null,s=null,o=null,l=0,u=null,d=null,h=null,m=null,p=null,g=null,k=!1,y=c(this.segments)??null;const b=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${e}'.`);let r=null;if(-1!==t&&(r=Number(e.slice(t+1)),!Number.isInteger(r)||r<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${e}'.`);return{length:i,offset:r}},w=e=>{l=e,y&&(n(null!==y.sequenceNumber),y.sequenceNumber0&&null!==g&&(r=l*g),k=!0);const e=T.slice(8),t=e.indexOf(","),i=-1===t?e:e.slice(0,t),a=Number(i);if(!Number.isFinite(a)||a<0)throw new Error(`Invalid #EXTINF tag duration '${i}'.`);s=a}else if(T.startsWith(La)){const e=new Ka(T.slice(11)),t=e.get("uri");if(!t)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const i=e.get("byterange");let n=null;if(null!==i&&(n=b(i)),n&&null===n.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!y){const e={path:me(this.rootPath,t),offset:n?.offset??0,length:n?.length??null};if("AES-128"===o?.method&&!o.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");d={timestamp:r,unixEpochTimestamp:a,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:o,initSegment:null,lastProgramDateTimeSeconds:p}}s=null,null===m?h=null:m=null}else if(T.startsWith(za)){const e=new Ka(T.slice(11)),t=e.get("method");if("NONE"===t)o=null;else if("AES-128"===t){const t=e.get("uri");if(!t)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let i=null;const r=e.get("iv");if(r){if(!gs.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(Bi);for(let t=0;t=8&&112===t[4]&&115===t[5]&&115===t[6]&&104===t[7]){const e=f(t).getUint32(0);r=wi(t.subarray(8,Math.min(e,t.length)))}}o={method:t,psshBox:r}}}}else if(T.startsWith(Ua)){const e=T.slice(22),t=Number(e);if(!Number.isInteger(t)||t<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${e}'.`);w(t)}else if(T.startsWith(qa)){const e=b(T.slice(17));if(null===e.offset){if(null===h)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");e.offset=h}m=e,h=e.offset+e.length}else if(T.startsWith(Wa)){if(y)continue;const e=T.slice(25),i=Date.parse(e);if(!Number.isFinite(i))continue;const s=i/1e3;if(p===s)continue;if(null===p&&this.segments.length>0){const e=c(this.segments),i=s-(e.timestamp+e.duration);for(const r of this.segments)r.unixEpochTimestamp=r.timestamp+i,t&&(r.timestamp=r.unixEpochTimestamp)}p=s,a=s,t&&(r=s)}else if("#EXT-X-DISCONTINUITY"===T)u=null;else if(T.startsWith(Ha)){const e=T.slice(22),t=Number(e);if(!Number.isFinite(t)||t<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${e}'.`);this.refreshInterval=t,g=t}else{if("#EXT-X-ENDLIST"===T){this.streamHasEnded=!0;break}if(T.startsWith(Va)){"vod"===T.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==T)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");i=!0}}if(!i)throw new Error("Invalid M3U8 file; no #EXTM3U header.")}async getFirstSegment(){return 0===this.segments.length&&await this.runUpdateSegments(),this.segments[0]??null}async getSegmentAt(e,t){0===this.segments.length&&await this.runUpdateSegments();let i=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const r=_(this.segments,e,e=>e.timestamp);if(-1===r)return null;if(r0;for(;;){if(re.segment===t);if(i)return i.age=this.nextInputCacheAge++,i.input;let r=null;(t.initSegment||t.firstSegment)&&(r=this.getInputForSegment(t.initSegment??t.firstSegment));const a={...this.input._formatOptions,isobmff:{...this.input._formatOptions.isobmff,resolveKeyId:this.input._formatOptions.isobmff?.resolveKeyId&&(e=>{if(!t.encryption||"SAMPLE-AES"!==t.encryption.method&&"SAMPLE-AES-CTR"!==t.encryption.method||!t.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(e);let i=e.psshBoxes;const{psshBox:r}=t.encryption;return null!==r.keyIds&&!r.keyIds.includes(e.keyId)||i.some(e=>Ti(e,r))||(i=[...i,r]),this.input._formatOptions.isobmff.resolveKeyId({...e,psshBoxes:i})})}},s=new ho({source:new is(t.location.path,async e=>{n(e.isRoot);const i={...e,isRoot:!1};let r;const a=t.location.offset>0||null!==t.location.length;if(t.encryption&&"SAMPLE-AES"!==t.encryption.method&&"SAMPLE-AES-CTR"!==t.encryption.method)if("AES-128"===t.encryption.method){const e=t.encryption;n(e.iv);let s=await this.input._getSourceCached(i);if(a){const e=s.source.slice(t.location.offset,t.location.length??void 0).ref();s.free(),s=e}const o=((e,t,i)=>{let r=!1,a=0;const s=new Oi;return new ReadableStream({pull:async n=>{r||(s.init(await t()),r=!0);let o=e.requestSliceRange(a,0,65552);if(ce(o)&&(o=await o),!o||0===o.length)throw new Error("Invalid ciphertext.");const c=o.length;if(c%16!==0)throw new Error("Invalid ciphertext.");const l=65552===c?c-16:c,u=yo(o,l),d=new Uint8Array(l);for(let e=0;e16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const t=d.subarray(0,l-e);n.enqueue(t),n.close(),i()}},cancel:()=>{i()}})})(new po(s.source),async()=>{const t={stack:[],error:void 0,hasError:!1};try{const i=ms(t,await this.input._getSourceCached({path:e.keyUri,isRoot:!1},uo),!1),r=new po(i.source),a=await r.requestSlice(0,Bi);if(!a)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:yo(a,Bi),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{ps(t)}},()=>{s.free()});r=new us(o).ref()}else n(!1);else if(r=await this.input._getSourceCached(i),a){const e=r.source.slice(t.location.offset,t.location.length??void 0).ref();r.free(),r=e}return r}),formats:this.input._formats.filter(e=>!(e instanceof Ls)),initInput:r??void 0,formatOptions:a});s._onFormatDetermined=e=>{if(("SAMPLE-AES"===t.encryption?.method||"SAMPLE-AES-CTR"===t.encryption?.method)&&!e._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:t,input:s,age:this.nextInputCacheAge++});if(this.inputCache.length>4){const e=ge(this.inputCache,e=>e.age);n(-1!==e),this.inputCache.splice(e,1)}return s}async getLiveRefreshInterval(){return 0===this.getRemainingWaitTimeMs()&&await this.runUpdateSegments(),this.streamHasEnded?null:this.refreshInterval}}class bs extends ki{constructor(e){super(e),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{n(this.input._rootSource instanceof es);const e=await this.input._reader.requestEntireFile();n(e);const t=Mo(e,e.length,{ignore:ja}),{rootPath:i}=this.input._rootSource,r=[],a=[];for(let n=1;n"video"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],o=[...new Set(a.filter(e=>"audio"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],c=await Promise.all(r.map(async(e,t)=>{const r=[],c=e.attributes.get("codecs");let l;if(c)l=c.split(",").map(e=>e.trim());else{const t=this.getSegmentedInputForPath(e.fullPath),i=await t.getTrackBackings(),r=await Promise.all(i.map(async e=>({track:e,codec:await e.getCodec()})));l=await Promise.all(r.filter(e=>null!==e.codec).map(e=>e.track.getDecoderConfig().then(e=>e.codec)))}const u=e.attributes.get("video"),d=e.attributes.get("audio"),h=l.some(e=>jt.includes(ni(e))),f=l.some(e=>Xt.includes(ni(e)));if(null!==u&&!h){if(!s.includes(u))throw new Error(`Invalid M3U8 file; variant stream references video group "${u}" which is not defined in any #EXT-X-MEDIA tags.`);const e=a.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===u&&"video"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=me(i,t),a=this.getSegmentedInputForPath(r),s=(await a.getTrackBackings()).find(e=>"video"===e.getType());if(!s||null===await s.getCodec())break e;const o=await s.getDecoderConfig().then(e=>e?.codec??null);n(null!==o),l.push(o)}}if(null!==d&&!f){if(!o.includes(d))throw new Error(`Invalid M3U8 file; variant stream references audio group "${d}" which is not defined in any #EXT-X-MEDIA tags.`);const e=a.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===d&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=me(i,t),a=this.getSegmentedInputForPath(r),s=(await a.getTrackBackings()).find(e=>"audio"===e.getType());if(!s||null===await s.getCodec())break e;const o=await s.getDecoderConfig().then(e=>e?.codec??null);n(null!==o),l.push(o)}}l=[...new Set(l)];let m=null,p=null;const g=e.attributes.getAsNumber("bandwidth");n(null!==g);const k=e.attributes.getAsNumber("average-bandwidth"),y=e.attributes.get("name");for(const i of l){const n=ni(i);if(null!==n)if(jt.includes(n)){if(null!==m)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");m=i;const n=e.attributes.get("video");if(null===n){const i=e.attributes.get("resolution");let a=null,s=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(a=Number(e[1]),s=Number(e[2]))}r.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:q,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:m,pairingMask:1n<0?a:null}})}else{if(!o.includes(s))throw new Error(`Invalid M3U8 file; variant stream references audio group "${s}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of a){const a=i.attributes.get("group-id"),n=i.attributes.get("type");if(a!==s||"audio"!==n.toLowerCase())continue;const o=i.attributes.get("channels")??e.attributes.get("channels"),c=null!==o?Number(o.split("/")[0]):null;r.push({id:-1,demuxer:this,backingTrack:null,default:vs(i.attributes),autoselect:vs(i.attributes)||Ps(i.attributes),languageCode:Is(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:i.fullPath??e.fullPath,fullCodecString:p,pairingMask:1n<0?c:null}})}}}}return r})),l=[],u=e=>{const t=l.find(t=>t.fullPath===e.fullPath&&t.info.type===e.info.type);t?(t.pairingMask|=e.pairingMask,t.default||(t.default=e.default),t.autoselect||(t.autoselect=e.autoselect),t.lineNumber=Math.min(t.lineNumber,e.lineNumber),null!==e.peakBitrate&&(t.peakBitrate=Math.max(t.peakBitrate??-1/0,e.peakBitrate)),null!==e.averageBitrate&&(t.averageBitrate=Math.max(t.averageBitrate??-1/0,e.averageBitrate)),t.languageCode===q&&(t.languageCode=e.languageCode)):(e.id=l.length+1,l.push(e))};for(const n of c)for(const e of n)u(e);l.sort((e,t)=>e.lineNumber-t.lineNumber),this.trackBackings=[];for(const n of l)"video"===n.info.type?this.trackBackings.push(new Ts(n)):this.trackBackings.push(new Ss(n));this.internalTracks=l})())}async getTrackBackings(){return await this.readMetadata(),n(this.trackBackings),this.trackBackings}getSegmentedInputForPath(e){let t=this.segmentedInputs.find(t=>t.path===e);if(t)return t;let i=null;if(this.internalTracks){i=this.internalTracks.filter(t=>t.fullPath===e).map(e=>({id:e.id,type:e.info.type}))}return t=new ys(this,e,i,null),this.segmentedInputs.push(t),t}async getMetadataTags(){return{}}async getMimeType(){return Aa}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class ws{constructor(e){this.internalTrack=e,this.hydrationPromise=null}hydrate(){return this.hydrationPromise??(this.hydrationPromise=(async()=>{const e=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let t=null;const i=(await e.getTrackBackings()).filter(e=>e.getType()===this.getType());if(1===i.length)t=i[0];else if(this instanceof Ts){for(const r of i)if(await r.getCodec()===this.getCodec()){t=r;break}}else{n(this instanceof Ss);for(const e of i)if(await e.getCodec()===this.getCodec()){t=e;break}}if(!t)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=t})())}delegate(e){return this.internalTrack.backingTrack?e():this.hydrate().then(e)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return{...xe,default:this.internalTrack.autoselect,primary:this.internalTrack.default}}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){n(this.internalTrack.demuxer.internalTracks);const e=this.internalTrack.info.type;let t=0;for(const i of this.internalTrack.demuxer.internalTracks)if(i.info.type===e&&t++,i===this.internalTrack)break;return t}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(e){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(e))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}async getDurationFromMetadata(e){return await this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(e)}async getLiveRefreshInterval(){return await this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}async getFirstPacket(e){return await this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(e)}async getPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getPacket(e,t)}async getKeyPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(e,t)}async getNextPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getNextPacket(e,t)}async getNextKeyPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(e,t)}}class Ts extends ws{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return ni(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}async getColorSpace(){return await this.hydrate(),this.backingVideoTrack.getColorSpace()}async canBeTransparent(){return await this.hydrate(),this.backingVideoTrack.canBeTransparent()}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingVideoTrack.getDecoderConfig()}}class Ss extends ws{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return ni(this.internalTrack.fullCodecString)}getNumberOfChannels(){return null!==this.internalTrack.info.numberOfChannels?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingAudioTrack.getDecoderConfig()}}const vs=e=>{const t=e.get("default");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},Ps=e=>{const t=e.get("autoselect");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},Is=e=>{if(null===e)return q;const t=e.split("-")[0];return t||q};class xs{constructor(){this._isIsobmff=!1}}class Cs extends xs{constructor(){super(...arguments),this._isIsobmff=!0}async _getMajorBrand(e){let t=e._reader.requestSlice(0,12);if(ce(t)&&(t=await t),!t)return null;t.skip(4);const i=Do(t,4);return"ftyp"!==i&&"styp"!==i?null:Do(t,4)}_createDemuxer(e){return new Li(e)}}class Bs extends Cs{async _canReadInput(e){const t=await this._getMajorBrand(e);if(null!==t)return"qt "!==t;let i=0;for(let r=0;r<10;r++){let t=e._reader.requestSlice(i,8);if(ce(t)&&(t=await t),!t)return!1;let r=Io(t),a=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(ce(t)&&(t=await t),!t)return!1;r=Eo(t),a=16}if(r8)return!1;if(ur(i,r)!==ir.EBML)return!1;const a=hr(i);if("number"!==typeof a)return!1;let s=e._reader.requestSlice(i.filePos,a);if(ce(s)&&(s=await s),!s)return!1;const n=i.filePos;for(;s.filePos<=n+a-2;){const e=fr(s);if(!e)break;const{id:i,size:r}=e,a=s.filePos;if(void 0===r)return!1;switch(i){case ir.EBMLVersion:if(1!==ur(s,r))return!1;break;case ir.EBMLReadVersion:if(1!==ur(s,r))return!1;break;case ir.DocType:if(mr(s,r)!==t)return!1;break;case ir.DocTypeVersion:if(ur(s,r)>4)return!1}s.filePos=a+r}return!0}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new Wr(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class Rs extends _s{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class Fs extends xs{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,qo);if(ce(i)&&(i=await i),!i)break;const r=jo(i);if(!r)break;t=i.filePos+r.size}const i=await Kr(e._reader,t,t+4096);if(!i)return!1;const r=i.header,a=di(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+a,4);if(ce(s)&&(s=await s),!s)return!1;const n=Io(s);if(n===li||n===ui)return!0;t=i.startPos+i.header.totalSize;const o=await Kr(e._reader,t,t+4);if(!o)return!1;const c=o.header;return r.channel===c.channel&&r.sampleRate===c.sampleRate}_createDemuxer(e){return new Xr(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class As extends xs{async _canReadInput(e){let t=e._reader.requestSlice(0,12);if(ce(t)&&(t=await t),!t)return!1;const i=Do(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===Do(t,4)}_createDemuxer(e){return new la(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class Ds extends xs{async _canReadInput(e){let t=e._reader.requestSlice(0,4);return ce(t)&&(t=await t),!!t&&"OggS"===Do(t,4)}_createDemuxer(e){return new ra(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class Ms extends xs{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,qo);if(ce(i)&&(i=await i),!i)break;const r=jo(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return ce(i)&&(i=await i),!!i&&"fLaC"===Do(i,4)}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new ga(e)}}class Ns extends xs{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,qo);if(ce(i)&&(i=await i),!i)break;const r=jo(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(ce(i)&&(i=await i),!i)return!1;const r=ha(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),ce(i)&&(i=await i),!i)return!1;const a=ha(i);return!!a&&(r.objectType===a.objectType&&r.samplingFrequencyIndex===a.samplingFrequencyIndex&&r.channelConfiguration===a.channelConfiguration)}_createDemuxer(e){return new ma(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class Os extends xs{async _canReadInput(e){let t=e._reader.requestSlice(0,205);if(ce(t)&&(t=await t),!t)return!1;const i=yo(t,205);return 71===i[0]&&71===i[188]||(71===i[0]&&71===i[204]||71===i[4]&&71===i[196])}_createDemuxer(e){return new Pa(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class Ls extends xs{async _canReadInput(e){let t=e._reader.requestSlice(0,7);if(ce(t)&&(t=await t),!t)return!1;if(!("#EXTM3U"===Do(t,7)))return!1;if(!(e._rootSource instanceof es))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return e._rootSource._usedForHls=!0,!0}_createDemuxer(e){return new bs(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return Aa}}const zs=new Bs,Us=new Es,qs=new _s,Ws=new Rs,Hs=new Fs,Vs=new As,js=new Ds,Ks=new Ns,Xs=new Ms,$s=new Os,Gs=new Ls,Qs=[Gs,zs,Us,qs,Ws,Vs,js,Xs,Hs,Ks,$s],Ys=[Gs,zs,Us,Hs,Ks,$s];var Js=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,a=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===a)return a=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return a|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else a|=1}catch(n){i(n)}if(1===a)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});he();let Zs=-1/0,en=-1/0,tn=null;"undefined"!==typeof FinalizationRegistry&&(tn=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-Zs>=1e3&&(ve._error("A VideoSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your VideoSamples as soon as you're done using them."),Zs=t),"undefined"!==typeof VideoFrame&&e.data instanceof VideoFrame&&e.data.close()):(t-en>=1e3&&(ve._error("An AudioSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your AudioSamples as soon as you're done using them."),en=t),"undefined"!==typeof AudioData&&e.data instanceof AudioData&&e.data.close())}));class rn{constructor(){this._referenceCount=0,this._lastAllocationBuffer=null}}const an=["I420","I420P10","I420P12","I420A","I420AP10","I420AP12","I422","I422P10","I422P12","I422A","I422AP10","I422AP12","I444","I444P10","I444P12","I444A","I444AP10","I444AP12","NV12","RGBA","RGBX","BGRA","BGRX"],sn=new Set(an);class nn{get codedWidth(){return this.visibleRect.width}get codedHeight(){return this.visibleRect.height}get displayWidth(){return this.rotation%180===0?this.squarePixelWidth:this.squarePixelHeight}get displayHeight(){return this.rotation%180===0?this.squarePixelHeight:this.squarePixelWidth}get microsecondTimestamp(){return Math.trunc(G*this.timestamp)}get microsecondDuration(){return Math.trunc(G*this.duration)}get hasAlpha(){return this.format&&this.format.includes("A")}constructor(e,t){if(this._closed=!1,e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e)){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0===t.format||!sn.has(t.format))throw new TypeError("init.format must be one of: "+an.join(", "));if(!Number.isInteger(t.codedWidth)||t.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(t.codedHeight)||t.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.layout){if(!Array.isArray(t.layout))throw new TypeError("init.layout, when provided, must be an array.");for(const e of t.layout){if(!e||"object"!==typeof e||Array.isArray(e))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(e.offset)||e.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(e.stride)||e.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==t.visibleRect&&ye(t.visibleRect,"init.visibleRect"),void 0!==t.displayWidth&&(!Number.isInteger(t.displayWidth)||t.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(void 0!==t.displayHeight&&(!Number.isInteger(t.displayHeight)||t.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(void 0!==t.displayWidth!==(void 0!==t.displayHeight))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=t.format,this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0;const i=t.layout??gn(t.format,t.codedWidth,t.codedHeight);let r=t.colorSpace??null;null===r&&(r="RGBA"===this.format||"RGBX"===this.format||"BGRA"===this.format||"BGRX"===this.format?{primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:{primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:t.visibleRect?.left??0,top:t.visibleRect?.top??0,width:t.visibleRect?.width??t.codedWidth,height:t.visibleRect?.height??t.codedHeight},void 0!==t.displayWidth?(this.squarePixelWidth=this.rotation%180===0?t.displayWidth:t.displayHeight,this.squarePixelHeight=this.rotation%180===0?t.displayHeight:t.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=t._doNotCopy?h(e):h(e).slice(),this._layout=i,this.colorSpace=new dn(r)}else if("undefined"!==typeof VideoFrame&&e instanceof VideoFrame){if(void 0!==t?.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(void 0!==t?.timestamp&&!Number.isFinite(t?.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(void 0!==t?.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");void 0!==t?.visibleRect&&ye(t.visibleRect,"init.visibleRect"),this._data=e,this._layout=null,this.format=e.format,this.visibleRect={left:e.visibleRect?.x??0,top:e.visibleRect?.y??0,width:e.visibleRect?.width??e.codedWidth,height:e.visibleRect?.height??e.codedHeight},this.rotation=t?.rotation??0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=t?.timestamp??e.timestamp/1e6,this.duration=t?.duration??(e.duration??0)/1e6,this.colorSpace=new dn(e.colorSpace)}else if("undefined"!==typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!==typeof SVGImageElement&&e instanceof SVGImageElement||"undefined"!==typeof ImageBitmap&&e instanceof ImageBitmap||"undefined"!==typeof HTMLVideoElement&&e instanceof HTMLVideoElement||"undefined"!==typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!==typeof OffscreenCanvas&&e instanceof OffscreenCanvas){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.visibleRect&&ye(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new nn(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*G),duration:Math.trunc((t.duration??0)*G)||void 0,visibleRect:t.visibleRect&&{x:t.visibleRect.left,y:t.visibleRect.top,width:t.visibleRect.width,height:t.visibleRect.height}}),t);let i=0,r=0;if("naturalWidth"in e?(i=e.naturalWidth,r=e.naturalHeight):"videoWidth"in e?(i=e.videoWidth,r=e.videoHeight):"width"in e&&(i=Number(e.width),r=Number(e.height)),!i||!r)throw new TypeError("Could not determine dimensions.");const a=t.visibleRect??{left:0,top:0,width:i,height:r},s=new OffscreenCanvas(a.width,a.height),n=s.getContext("2d",{alpha:re(),willReadFrequently:!0});if(!n)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");n.drawImage(e,-a.left,-a.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:a.width,height:a.height},this.squarePixelWidth=a.width,this.squarePixelHeight=a.height,this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0,this.colorSpace=new dn({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof rn))throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=e,e._referenceCount++,this.format=e.getFormat(),null!==this.format&&!an.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:e.getCodedWidth(),height:e.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=e.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=e.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0,this.colorSpace=e.getColorSpace()}this.encodeOptions=t?.encodeOptions??{},this.pixelAspectRatio=ke({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),tn?.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return n(null!==this._data),this._data instanceof rn?new nn(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):hn(this._data)?new nn(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(n(this._layout),new nn(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new nn(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(tn?.unregister(this),this._data instanceof rn?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):hn(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){if(pn(e),this._closed)throw new Error("VideoSample is closed.");if(null==(e.format??this.format))throw new Error("Cannot get allocation size when format is null.");if(hn(this._data))return this._data.allocationSize(e);return yn(this,e).allocationSize}async copyTo(e,t={}){if(!P(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(pn(t),this._closed)throw new Error("VideoSample is closed.");if(null==(t.format??this.format))throw new Error("Cannot copy video sample data when format is null.");if(n(null!==this._data),hn(this._data))return this._data.copyTo(e,t);if(t.format&&!["RGBA","RGBX","BGRA","BGRX"].includes(this.format)&&["RGBA","RGBX","BGRA","BGRX"].includes(t.format)){if(!(this._data instanceof rn)){if("undefined"===typeof VideoFrame)throw new Error("For this sample, converting from a non-RGB to an RGB format requires VideoFrame to be defined.");const i=this.toVideoFrame(),r=await i.copyTo(e,t);return i.close(),r}{const i={stack:[],error:void 0,hasError:!1};try{const r=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,a;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(a=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");a&&(r=function(){try{a.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t}(i,await this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation},t.colorSpace??"srgb"),!1);if(!(r instanceof nn))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(r.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${r.format}' instead.`);return await r.copyTo(e,t)}catch(l){i.error=l,i.hasError=!0}finally{Js(i)}}}const i=yn(this,t);n(this.format);const r=h(e);if(r.byteLength!(e.data instanceof Uint8Array)||!Number.isInteger(e.stride)||e.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');s=e}else if(this._data instanceof Uint8Array)n(this._layout),n(this._layout.length===a.length),s=this._layout.map((e,t)=>{const i=Math.ceil(this.codedHeight/a[t].heightDivisor);return{data:this._data.subarray(e.offset,e.offset+e.stride*i),stride:e.stride}});else{const e=this._data.getContext("2d");n(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);s=[{data:h(t.data),stride:4*this.codedWidth}]}const o=[],c=a.length;for(let n=0;na.byteLength)throw new Error("Source buffer OOB read.");if(l+u>r.byteLength)throw new Error("Destination buffer OOB write.");const i=a.subarray(c,c+u);r.set(i,l),c+=t,l+=e.destinationStride}o.push(d)}if(void 0!==t.format){const e=this.format.startsWith("RGB")!==t.format.startsWith("RGB"),a=this.format.includes("X")&&t.format.includes("A");if(e||a)for(let t=0;te+t.data.byteLength,0),i=new Uint8Array(t);let r=0;const a=[];for(const s of e)i.set(s.data,r),a.push(r),r+=s.data.byteLength;return new VideoFrame(i,{format:this.format,layout:e.map((e,t)=>({offset:a[t],stride:e.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}return hn(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(n(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(e,t,i,r,a,s,n,o,c){let l=0,u=0,d=this.displayWidth,h=this.displayHeight,f=0,m=0,p=this.displayWidth,g=this.displayHeight;if(void 0!==s?(l=t,u=i,d=r,h=a,f=s,m=n,void 0!==o?(p=o,g=c):(p=d,g=h)):(f=t,m=i,void 0!==r&&(p=r,g=a)),!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(l))throw new TypeError("sx must be a number.");if(!Number.isFinite(u))throw new TypeError("sy must be a number.");if(!Number.isFinite(d)||d<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(h)||h<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(f))throw new TypeError("dx must be a number.");if(!Number.isFinite(m))throw new TypeError("dy must be a number.");if(!Number.isFinite(p)||p<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(g)||g<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:l,sy:u,sWidth:d,sHeight:h}=this._rotateSourceRegion(l,u,d,h,this.rotation));const k=this.toCanvasImageSource();e.save();const y=f+p/2,b=m+g/2;e.translate(y,b),e.rotate(this.rotation*Math.PI/180);const w=this.rotation%180===0?1:p/g;e.scale(1/w,w),e.drawImage(k,l,u,d,h,-p/2,-g/2,p,g),e.restore()}drawWithFit(e,t){if(!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&mn(t.crop,"options.");const i=e.canvas.width,r=e.canvas.height,a=t.rotation??this.rotation,[s,n]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let o,c,l,u,d=t.crop;d&&(d=fn(d,s,n));const{sx:h,sy:f,sWidth:m,sHeight:p}=this._rotateSourceRegion(t.crop?.left??0,t.crop?.top??0,t.crop?.width??s,t.crop?.height??n,a);if("fill"===t.fit)o=0,c=0,l=i,u=r;else{const[e,a]=t.crop?[t.crop.width,t.crop.height]:[s,n],d="contain"===t.fit?Math.min(i/e,r/a):Math.max(i/e,r/a);l=e*d,u=a*d,o=(i-l)/2,c=(r-u)/2}e.save();const g=a%180===0?1:l/u;e.translate(i/2,r/2),e.rotate(a*Math.PI/180),e.scale(1/g,g),e.translate(-i/2,-r/2),e.drawImage(this.toCanvasImageSource(),h,f,m,p,o,c,l,u),e.restore()}_rotateSourceRegion(e,t,i,r,a){return 90===a?[e,t,i,r]=[t,this.squarePixelHeight-e-i,r,i]:180===a?[e,t]=[this.squarePixelWidth-e-i,this.squarePixelHeight-t-r]:270===a&&([e,t,i,r]=[this.squarePixelWidth-t-r,e,r,i]),{sx:e,sy:t,sWidth:i,sHeight:r}}_drawWithFitAndMipmapping(e,t,i){const r=e.width,a=e.height,[s,n]=i.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],o=i.crop?i.crop.width:s,c=i.crop?i.crop.height:n;let l=0;2*r0?un(u,d):{canvas:e,context:t,isNew:i.targetIsFresh};f.imageSmoothingQuality="high",i.fillBlack?(f.fillStyle="black",f.fillRect(0,0,u,d)):m||f.clearRect(0,0,u,d),this.drawWithFit(f,{fit:i.fit,rotation:i.rotation,crop:i.crop}),f.globalCompositeOperation="copy";for(let p=l;p>1;p--){const e=r*2**p,t=a*2**p;f.drawImage(h,0,0,e,t,0,0,e/2,t/2)}f.globalCompositeOperation="source-over",l>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(h,0,0,2*r,2*a,0,0,r,a),t.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(n(null!==this._data),this._data instanceof rn||this._data instanceof Uint8Array){const e=this.toVideoFrame();return queueMicrotask(()=>e.close()),e}return this._data}async transform(e){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.width&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(void 0!==e.height&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(void 0!==e.roundDimensionsTo&&(!Number.isInteger(e.roundDimensionsTo)||e.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(void 0!==e.fit&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==e.width&&void 0!==e.height&&void 0===e.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==e.rotate&&![0,90,180,270].includes(e.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(void 0!==e.crop&&mn(e.crop,"options."),void 0!==e.alpha&&!["keep","discard"].includes(e.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");const t=o(this.rotation+(e.rotate??0)),[i,r]=t%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let a=e.crop;a&&(a=fn(a,i,r));const s=a?a.width:i,n=a?a.height:r,c=s/n;let l,u;void 0!==e.width&&void 0===e.height?(l=e.width,u=l/c):void 0===e.width&&void 0!==e.height?(u=e.height,l=u*c):void 0!==e.width&&void 0!==e.height?(l=e.width,u=e.height):(l=s,u=n),l=H(l,e.roundDimensionsTo??1),u=H(u,e.roundDimensionsTo??1);const d={width:l,height:u,fit:e.fit??"fill",rotation:t,crop:a??{left:0,top:0,width:i,height:r},alpha:e.alpha??"keep"};for(const o of on){let e=o(this,d);if(ce(e)&&(e=await e),null!==e)return e}const{canvas:h,context:f,isNew:m}=un(d.width,d.height);return this._drawWithFitAndMipmapping(h,f,{fit:d.fit,rotation:d.rotation,crop:d.crop,targetIsFresh:m,fillBlack:"discard"===d.alpha}),new nn(h,{timestamp:this.timestamp,duration:this.duration,rotation:0})}setRotation(e){if(![0,90,180,270].includes(e))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}setDuration(e){if(!Number.isFinite(e)||e<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=e}setEncodeOptions(e){if(!e||"object"!==typeof e)throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=e}[Symbol.dispose](){this.close()}}const on=[],cn=[];let ln=0;const un=(e,t)=>{for(const a of cn)if(a.canvas.width===e&&a.canvas.height===t)return a.age=ln++,{canvas:a.canvas,context:a.context,isNew:!1};let i;if("undefined"!==typeof OffscreenCanvas)i=new OffscreenCanvas(e,t);else{if("undefined"===typeof window||"undefined"===typeof document)throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");i=document.createElement("canvas"),i.width=e,i.height=t}const r=i.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return cn.length>=3&&cn.splice(ge(cn,e=>e.age),1),cn.push({canvas:i,context:r,age:ln++}),{canvas:i,context:r,isNew:!0}};class dn{constructor(e){if(void 0!==e){if(!e||"object"!==typeof e)throw new TypeError("init.colorSpace, when provided, must be an object.");const t=Object.keys(g);if(null!=e.primaries&&!t.includes(e.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${t.join(", ")}.`);const i=Object.keys(y);if(null!=e.transfer&&!i.includes(e.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${i.join(", ")}.`);const r=Object.keys(w);if(null!=e.matrix&&!r.includes(e.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${r.join(", ")}.`);if(null!=e.fullRange&&"boolean"!==typeof e.fullRange)throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=e?.primaries??null,this.transfer=e?.transfer??null,this.matrix=e?.matrix??null,this.fullRange=e?.fullRange??null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}const hn=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,fn=(e,t,i)=>{const r=Math.min(e.left,t),a=Math.min(e.top,i),s=Math.min(e.width,t-r),o=Math.min(e.height,i-a);return n(s>=0),n(o>=0),{left:r,top:a,width:s,height:o}},mn=(e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},pn=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!==typeof e.format)throw new TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw new TypeError("options.layout, when provided, must be an array.");for(const t of e.layout){if(!t||"object"!==typeof t)throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==e.rect){if(!e.rect||"object"!==typeof e.rect)throw new TypeError("options.rect, when provided, must be an object.");if(void 0!==e.rect.x&&(!Number.isInteger(e.rect.x)||e.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(void 0!==e.rect.y&&(!Number.isInteger(e.rect.y)||e.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(void 0!==e.rect.width&&(!Number.isInteger(e.rect.width)||e.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(void 0!==e.rect.height&&(!Number.isInteger(e.rect.height)||e.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},gn=(e,t,i)=>{const r=kn(e),a=[];let s=0;for(const n of r){const e=Math.ceil(t/n.widthDivisor),r=Math.ceil(i/n.heightDivisor),o=e*n.sampleBytes,c=o*r;a.push({offset:s,stride:o}),s+=c}return a},kn=e=>{const t=(e,t,i,r,a)=>{const s=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:i,heightDivisor:r},{sampleBytes:t,widthDivisor:i,heightDivisor:r}];return a&&s.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),s};switch(e){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:N(e),n(!1)}},yn=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,a=bn(i,r,e.codedWidth,e.codedHeight,e.format),s=t.layout;let n;if(t.format&&t.format!==e.format){if(!["RGBA","RGBX","BGRA","BGRX"].includes(t.format))throw new Error("NotSupportedError: Invalid destination format.");n=t.format}else n=e.format;return Tn(a,n,s)},bn=(e,t,i,r,a)=>{const s={...e};if(void 0!==t){if(0===t.width||0===t.height)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>i)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");s.x=t.x||0,s.y=t.y||0,s.width=t.width||0,s.height=t.height||0}if(!wn(a,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},wn=(e,t)=>{if(null===e)return!0;const i=kn(e);for(let r=0;r{const r=kn(t),a=r.length;if(void 0!==i&&i.length!==a)throw new TypeError(`Layout must have ${a} planes.`);let s=0;const n=[],o=[];for(let c=0;c4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(h),s=Math.max(s,h);for(let e=0;e 0.");if(!Number.isInteger(e.numberOfChannels)||0===e.numberOfChannels)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(e?.timestamp))throw new TypeError("init.timestamp must be a number.");const t=e.data.byteLength/(In(e.format)*e.numberOfChannels);if(!Number.isInteger(t))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");let i;if(this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=t,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp,this.duration=t/e.sampleRate,e.data instanceof ArrayBuffer)i=new Uint8Array(e.data);else{if(!ArrayBuffer.isView(e.data))throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");i=new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}const r=this.numberOfFrames*this.numberOfChannels*In(this.format);if(i.byteLength=this.numberOfFrames)throw new RangeError("frameOffset out of range");const r=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-i;if(r>this.numberOfFrames-i)throw new RangeError("frameCount out of range");const a=In(t),s=xn(t);if(s&&e.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!s&&0!==e.planeIndex)throw new RangeError("planeIndex out of range");return(s?r:r*this.numberOfChannels)*a}copyTo(e,t){if(!P(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!Sn.has(t.format))throw new TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:i,frameCount:r,frameOffset:a}=t;let{planeIndex:s}=t,o=this.format;const c=i??this.format;if(!c)throw new Error("Destination format not determined");const l=this.numberOfFrames,u=this.numberOfChannels,d=a??0;if(d>=l)throw new RangeError("frameOffset out of range");const h=void 0!==r?r:l-d;if(h>l-d)throw new RangeError("frameCount out of range");const m=In(c),p=xn(c);if(p&&s>=u)throw new RangeError("planeIndex out of range");if(!p&&0!==s)throw new RangeError("planeIndex out of range");const g=(p?h:h*u)*m;if(e.byteLength2&&c!==o)return void _n(this._data,k,o,c,u,s,d,h);try{return void this._data.copyTo(e,{planeIndex:s,frameOffset:d,frameCount:h,format:c})}catch(I){if("f32-planar"===c)throw I;o="f32-planar"}}const b=Cn(o),w=In(o),T=xn(o);let S;if(this._data instanceof vn){const e=e=>{const t=this._data.getDataPlane(e);if(!(t instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const i=l*w*(T?1:u);if(t.byteLength!==i)throw new TypeError(`Data plane ${e} has invalid size. Expected exactly ${i} bytes, got ${t.byteLength} bytes.`);return t};if(T)if(p)S=e(s),s=0;else{S=new Uint8Array(l*w*u);for(let t=0;tthis.numberOfFrames)throw new RangeError("startFrame out of range.");if(t>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(t0)for(let r=0;r0&&this.copyTo(a,{planeIndex:0,format:this.format,frameOffset:e,frameCount:i});return new Pn({data:a,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(tn?.unregister(this),this._data instanceof vn?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):En(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof vn?this._createAudioDataFromData():En(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(xn(this.format)){const e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels);for(let i=0;i0;){const a=Math.min(s,o),c=new Float32Array(i*a);for(let t=0;t0;){const a=Math.min(s,o),l=new Float32Array(i*a);for(let t=0;t{switch(e){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},xn=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},Cn=e=>{switch(e){case"u8":case"u8-planar":return(e,t)=>(e.getUint8(t)-128)/128;case"s16":case"s16-planar":return(e,t)=>e.getInt16(t,!0)/32768;case"s32":case"s32-planar":return(e,t)=>e.getInt32(t,!0)/2147483648;case"f32":case"f32-planar":return(e,t)=>e.getFloat32(t,!0)}},Bn=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,U(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,U(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,U(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},En=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,_n=(e,t,i,r,a,s,n,o)=>{const c=Cn(i),l=Bn(r),u=In(i),d=In(r),h=xn(i);if(xn(r))if(h){const r=new ArrayBuffer(o*u),a=f(r);e.copyTo(r,{planeIndex:s,frameOffset:n,frameCount:o,format:i});for(let e=0;e{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!==typeof e.metadataOnly)throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!==typeof e.verifyKeyPackets)throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(void 0!==e.skipLiveWait&&"boolean"!==typeof e.skipLiveWait)throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},Dn=e=>{if(!fe(e))throw new TypeError("timestamp must be a number.")},Mn=(e,t,i)=>i.verifyKeyPackets?t.then(async t=>{if(!t||"delta"===t.type)return t;const i=await e.determinePacketType(t);return i&&(t.type=i),t}):t;class Nn{constructor(e){if(!(e instanceof Yn))throw new TypeError("track must be an InputTrack.");this._track=e}async getFirstPacket(e={}){if(An(e),this._track.input._disposed)throw new mo;return Mn(this._track,this._track._backing.getFirstPacket(e),e)}async getFirstKeyPacket(e={}){An(e);const t=await this.getFirstPacket(e);return t?"key"===t.type?t:this.getNextKeyPacket(t,e):null}async getPacket(e,t={}){if(Dn(e),An(t),this._track.input._disposed)throw new mo;return Mn(this._track,this._track._backing.getPacket(e,t),t)}async getNextPacket(e,t={}){if(!(e instanceof bi))throw new TypeError("packet must be an EncodedPacket.");if(An(t),this._track.input._disposed)throw new mo;return Mn(this._track,this._track._backing.getNextPacket(e,t),t)}async getKeyPacket(e,t={}){if(Dn(e),An(t),this._track.input._disposed)throw new mo;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const i=await this._track._backing.getKeyPacket(e,t);if(!i)return i;n("key"===i.type);return"delta"===await this._track.determinePacketType(i)?this.getKeyPacket(i.timestamp-1/await this._track.getTimeResolution(),t):i}async getNextKeyPacket(e,t={}){if(!(e instanceof bi))throw new TypeError("packet must be an EncodedPacket.");if(An(t),this._track.input._disposed)throw new mo;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const i=await this._track._backing.getNextKeyPacket(e,t);if(!i)return i;n("key"===i.type);return"delta"===await this._track.determinePacketType(i)?this.getNextKeyPacket(i,t):i}packets(e,t,i={}){if(void 0!==e&&!(e instanceof bi))throw new TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!i?.metadataOnly)throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof bi))throw new TypeError("endPacket must be an EncodedPacket.");if(An(i),this._track.input._disposed)throw new mo;const r=[];let{promise:a,resolve:s}=F(),{promise:n,resolve:o}=F(),c=!1,l=!1,u=null,d=!1;const h=[],f=()=>Math.max(2,h.length);(async()=>{let u=e??await this.getFirstPacket(i);for(;u&&!l&&!this._track.input._disposed&&!(t&&u.sequenceNumber>=t?.sequenceNumber);)r.length>f()?(({promise:n,resolve:o}=F()),await n):(r.push(u),s(),({promise:a,resolve:s}=F()),u=await this.getNextPacket(u,i));c=!0,s()})().catch(e=>{d||(u=e,d=!0,s())});const m=this._track;return{async next(){for(;;){if(m.input._disposed)throw new mo;if(l)return{value:void 0,done:!0};if(d)throw u;if(r.length>0){const e=r.shift(),t=performance.now();for(h.push(t);h.length>0&&t-h[0]>=1e3;)h.shift();return o(),{value:e,done:!1}}if(c)return{value:void 0,done:!0};await a}},return:async()=>(l=!0,o(),s(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}}class On{constructor(e,t){this.onSample=e,this.onError=t}}class Ln{mediaSamplesInRange(e=-1/0,t=1/0,i){Dn(e),Dn(t);const r=[];let a=!1,s=null,{promise:n,resolve:o}=F(),{promise:c,resolve:l}=F(),u=!1,d=!1,h=!1,f=null,m=null,p=!1;const g={...i,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{f=await this._createDecoder(i=>{l(),i.timestamp>=t&&(d=!0),d?i.close():(s&&(i.timestamp>e?(r.push(s),a=!0):s.close()),i.timestamp>=e&&(r.push(i),a=!0),s=a?null:i,r.length>0&&(o(),({promise:n,resolve:o}=F())))},e=>{p||(m=e,p=!0,o())});const i=this._createPacketSink(),k=await i.getKeyPacket(e,g)??await i.getFirstKeyPacket(g);let y=k;const b=i.packets(k??void 0,void 0,g);for(await b.next();y&&!d&&!this._track.input._disposed;){const e=zn(r.length);if(r.length+f.getDecodeQueueSize()>e){({promise:c,resolve:l}=F()),await c;continue}f.decode(y);const t=await b.next();if(t.done)break;y=t.value}await b.return(),h||this._track.input._disposed||await f.flush(),!a&&s&&r.push(s),u=!0,o()})().catch(e=>{p||(m=e,p=!0,o())}).finally(()=>{f?.close()});const k=this._track,y=()=>{s?.close();for(const e of r)e.close()};return{async next(){for(;;){if(k.input._disposed)throw h=!0,d=!0,y(),new mo;if(h)return{value:void 0,done:!0};if(p)throw h=!0,d=!0,y(),m;if(r.length>0){const e=r.shift();return l(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};await n}},return:async()=>(h=!0,d=!0,l(),o(),y(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(e,t){(e=>{if(!(Symbol.iterator in e)&&!(Symbol.asyncIterator in e))throw new TypeError("Argument must be an iterable or async iterable.")})(e);const i=async function*(e){Symbol.iterator in e?yield*e[Symbol.iterator]():yield*e[Symbol.asyncIterator]()}(e),r=[],a=[];let{promise:s,resolve:o}=F(),{promise:c,resolve:l}=F(),u=!1,d=!1,h=null,f=null,m=!1;const p=e=>{a.push(e),o(),({promise:s,resolve:o}=F())},g={...t,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{h=await this._createDecoder(e=>{if(l(),d)return void e.close();let t=0;for(;r.length>0&&e.timestamp-r[0]>-1e-10;)t++,r.shift();if(t>0)for(let i=0;i{m||(f=e,m=!0,o())});const e=this._createPacketSink();let t=null,s=null,k=-1;const y=async()=>{n(s),n(h);let t=s;for(h.decode(t);t.sequenceNumberi&&!d;)({promise:c,resolve:l}=F()),await c;if(d)break;const r=await e.getNextPacket(t,g);n(r),h.decode(r),t=r}k=-1},b=async()=>{n(h),await h.flush();for(let e=0;e{m||(f=e,m=!0,o())}).finally(()=>{h?.close()});const k=this._track,y=()=>{for(const e of a)e?.close()};return{async next(){for(;;){if(k.input._disposed)throw d=!0,y(),new mo;if(d)return{value:void 0,done:!0};if(m)throw d=!0,y(),f;if(a.length>0){const e=a.shift();return n(void 0!==e),l(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};await s}},return:async()=>(d=!0,l(),o(),y(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}}const zn=e=>0===e?40:8;class Un extends On{constructor(e,t,i,r,a,s){super(e,t),this.codec=i,this.decoderConfig=r,this.rotation=a,this.timeResolution=s,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new Z,this.customDecoderQueueSize=0,this.inputTimestamps=[],this.sampleQueue=[],this.currentPacketIndex=0,this.raslSkipped=!1,this.alphaDecoder=null,this.alphaHadKeyframe=!1,this.colorQueue=[],this.alphaQueue=[],this.merger=null,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue=[],this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,this.finalSamples=[],this.mergeAlphaPromises=[];const o=Rn.find(e=>e.supports(i,r));if(o)this.customDecoder=new o,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof nn))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=e=>{if(this.alphaQueue.length>0){const t=this.alphaQueue.shift();n(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(se()){if("avc"===i&&this.decoderConfig.description){const e=Ge(h(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=Ye(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig={...this.decoderConfig,hardwareAcceleration:"prefer-software"}),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=Ze(t),this.decoderConfig={...this.decoderConfig,description:$e(e)}))}}S(this.decoderConfig.colorSpace)||(this.decoderConfig={...this.decoderConfig,colorSpace:{primaries:this.decoderConfig.colorSpace?.primaries??"bt709",matrix:this.decoderConfig.colorSpace?.matrix??"bt709",transfer:this.decoderConfig.colorSpace?.transfer??"bt709",fullRange:this.decoderConfig.colorSpace?.fullRange??!1}})}const t=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(n(this.decoder),Math.max(this.decoder.decodeQueueSize,this.alphaDecoder?.decodeQueueSize??0))}decode(e){if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--);else{if(n(this.decoder),te()||R(this.inputTimestamps,e.timestamp,e=>e),se()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const a of qe(e.data,this.decoderConfig)){const r=We(e.data[a.offset]);if(i||(i=r>=1&&r<=5),r===Me.AUD){if(i)break;t.length=0}r>=20&&r<=31||t.push(e.data.subarray(a.offset,a.offset+a.length))}if(!this.decoderConfig.description)for(let e=0;e{if(t.description){const i=3&h(t.description)[4];return Ke(e,i+1)}return je(e)})(t,this.decoderConfig);e=new bi(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=ft(e.data,this.decoderConfig);t&&(e=new bi(t,e.type,e.timestamp,e.duration))}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}decodeAlphaData(e){if(!e.sideData.alpha)return void this.pushNullAlphaFrame();if(this.merger||(this.merger=new Wn),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();n(void 0!==t),this.mergeAlpha(t,e)}else this.alphaQueue.push(e);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){const e=this.colorQueue.shift();n(void 0!==e),this.mergeAlpha(e,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},t=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}const t=Tt(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===t),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(t??e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(const t of et(e,this.decoderConfig)){const i=tt(e[t.offset]);if(i===Oe.RASL_N||i===Oe.RASL_R)return!0}return!1}sampleHandler(e){if(te()){if(this.sampleQueue.length>0&&e.timestamp>=c(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}R(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();n(void 0!==t),e.setTimestamp(t),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}async mergeAlpha(e,t){const i=F();this.mergeAlphaPromises.push(i.promise);const r={sample:null};this.finalSamples.push(r);try{if(t){n(this.merger);const i=await this.merger.merge(e,t);r.sample=new nn(i)}else r.sample=new nn(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(a){A(this.finalSamples,r),this.onError(a)}finally{A(this.mergeAlphaPromises,i.promise),i.resolve()}}async flush(){if(this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(n(this.decoder),await Promise.all([this.decoder.flush(),this.alphaDecoder?.flush()]),await Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>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),te()){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(n(this.decoder),"closed"!==this.decoder.state&&this.decoder.close(),this.alphaDecoder&&"closed"!==this.alphaDecoder.state&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>e?.close()),this.alphaQueue.length=0,this.merger?.close());for(const e of this.sampleQueue)e.close();this.sampleQueue.length=0}}let qn=null;class Wn{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!qn){const e=new Blob([`(${Hn.toString()})()`],{type:"application/javascript"});qn=URL.createObjectURL(e)}const e=U(navigator.hardwareConcurrency,1,4);for(let t=0;t{const t=e.data,i=this.pendingRequests.get(t.id);i&&(this.pendingRequests.delete(t.id),"error"in t?i.reject(new Error(t.error)):i.resolve(t.frame))}),e.addEventListener("error",e=>{const t=new Error(e.message||"Color/alpha merge worker error.");for(const i of this.pendingRequests.values())i.reject(t);this.pendingRequests.clear()}),this.workers.push(e)}}const i=this.nextRequestId++,r=F();this.pendingRequests.set(i,r);const a=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,a.postMessage({id:i,color:e,alpha:t},{transfer:[e,t]}),r.promise}close(){for(const t of this.workers)t.terminate();this.workers.length=0;const e=new Error("Color/alpha merger closed.");for(const t of this.pendingRequests.values())t.reject(e);this.pendingRequests.clear()}}const Hn=()=>{let e=null,t=null,i=Promise.resolve();self.addEventListener("message",e=>{const{id:t,color:a,alpha:s}=e.data;i=i.then(async()=>{try{const e=await r(a,s);self.postMessage({id:t,frame:e},{transfer:[e]})}catch(e){self.postMessage({id:t,error:e.message})}finally{a.close(),s.close()}})});const r=async(e,t)=>{const i=e.format,r=t.format;if(!i||!r)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");const o=i.includes("P10"),c=i.includes("P12"),l=r.includes("P10"),u=r.includes("P12");if(l!==o||u!==c)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${i}', alpha: '${r}').`);if("RGBX"===i||"RGBA"===i||"BGRX"===i||"BGRA"===i)return await a(e,t,i);if("I420"===i||"I420P10"===i||"I420P12"===i||"I422"===i||"I422P10"===i||"I422P12"===i||"I444"===i||"I444P10"===i||"I444P12"===i)return await s(e,t,i);if("NV12"===i)return await n(e,t);throw new Error(`CPU color/alpha merging does not support format '${i}'.`)},a=async(e,t,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=r*a,n=new Uint8Array(4*s);await e.copyTo(n);const c=await o(t,r,a,1);for(let o=0,u=3;o{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=i.includes("P10"),n=i.includes("P12"),c=s||n?2:1;let l,u;i.startsWith("I420")?(l=Math.ceil(r/2),u=Math.ceil(a/2)):i.startsWith("I422")?(l=Math.ceil(r/2),u=a):(l=r,u=a);const d=r*a,h=d*c,f=l*u*c,m=new Uint8Array(h+2*f+d*c);await e.copyTo(m);const p=await o(t,r,a,c),g=h+2*f;m.set(p,g);const k={format:i.slice(0,4)+"A"+i.slice(4),codedWidth:r,codedHeight:a,timestamp:e.timestamp,duration:e.duration??void 0,transfer:[m.buffer]};return new VideoFrame(m,k)},n=async(e,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=r*a,n=Math.ceil(r/2)*Math.ceil(a/2),c=e.allocationSize();t&&t.byteLength===c||(t=new Uint8Array(c)),await e.copyTo(t);const l=new Uint8Array(s+2*n+s);l.set(t.subarray(0,s),0);const u=s,d=s+n,h=s;for(let o=0;o{const s=t.allocationSize();e&&e.byteLength===s||(e=new Uint8Array(s)),await t.copyTo(e);const n=t.format;if("RGBA"===n||"BGRA"===n||"RGBX"===n||"BGRX"===n){const t="RGBA"===n||"RGBX"===n?0:2,a=i*r;for(let i=0;i{if(!e||"object"!==typeof e)throw new TypeError("decoderOptions must be an object.");if(void 0!==e.hardwareAcceleration&&!["no-preference","prefer-hardware","prefer-software"].includes(e.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(void 0!==e.optimizeForLatency&&"boolean"!==typeof e.optimizeForLatency)throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")};class jn extends Ln{constructor(e,t={}){if(!(e instanceof eo))throw new TypeError("videoTrack must be an InputVideoTrack.");Vn(t),super(),this._track=e,this._decoderOptions=t}async _createDecoder(e,t){if(!(await this._track.canDecode())){if("undefined"===typeof VideoDecoder)throw new Error(ne("VideoDecoder"));throw new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=await this._track.getCodec(),r=await this._track.getRotation();let a=await this._track.getDecoderConfig();const s=await this._track.getTimeResolution();return n(i&&a),a={...a,hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency},new Un(e,t,i,a,r,s)}_createPacketSink(){return new Nn(this._track)}async getSample(e,t={}){Dn(e);for await(const i of this.mediaSamplesAtTimestamps([e],t))return i;throw new Error("Internal error: Iterator returned nothing.")}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Kn{constructor(e,t={}){if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof eo))throw new TypeError("videoTrack must be an InputVideoTrack.");if(t&&"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.alpha&&"boolean"!==typeof t.alpha)throw new TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==t.width&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(void 0!==t.height&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(void 0!==t.fit&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==t.width&&void 0!==t.height&&void 0===t.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==t.crop&&mn(t.crop,"options."),void 0!==t.poolSize&&("number"!==typeof t.poolSize||!Number.isInteger(t.poolSize)||t.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");void 0!==t.decoderOptions&&Vn(t.decoderOptions),this._videoTrack=e,this._alpha=t.alpha??!1,this._options=t,this._fit=t.fit??"fill",this._videoSampleSink=new jn(e,t.decoderOptions),this._canvasPool=Array.from({length:t.poolSize??0},()=>null)}_ensureInit(){return this._initPromise??(this._initPromise=(async()=>{const e=this._options,t=this._videoTrack,i=e.rotation??await t.getRotation(),r=await t.getSquarePixelWidth(),a=await t.getSquarePixelHeight(),[s,n]=i%180===0?[r,a]:[a,r];let o=e.crop;o&&(o=fn(o,s,n));let[c,l]=o?[o.width,o.height]:[s,n];const u=c/l;void 0!==e.width&&void 0===e.height?(c=e.width,l=Math.round(c/u)):void 0===e.width&&void 0!==e.height?(l=e.height,c=Math.round(l*u)):void 0!==e.width&&void 0!==e.height&&(c=e.width,l=e.height),this._width=c,this._height=l,this._rotation=i,this._crop=o})())}_videoSampleToWrappedCanvas(e){const t=this._width,i=this._height;let r=this._canvasPool[this._nextCanvasIndex],a=!1;r||("undefined"!==typeof document?(r=document.createElement("canvas"),r.width=t,r.height=i):r=new OffscreenCanvas(t,i),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=r),a=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);const s=r.getContext("2d",{alpha:this._alpha||re()});n(s),e._drawWithFitAndMipmapping(r,s,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:a,fillBlack:!this._alpha&&re()});const o={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),o}async getCanvas(e,t){Dn(e),await this._ensureInit();const i=await this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)}async*canvases(e,t,i){await this._ensureInit(),yield*z(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e))}async*canvasesAtTimestamps(e,t){await this._ensureInit(),yield*z(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e))}}class Xn extends On{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new Z,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const a=t=>{let i=t.timestamp;null!==this.expectedFirstTimestamp&&null===this.currentTimestamp&&(this.timestampOffset=this.expectedFirstTimestamp-i),i+=this.timestampOffset,(null===this.currentTimestamp||Math.abs(i-this.currentTimestamp)>=t.duration)&&(this.currentTimestamp=i);const a=this.currentTimestamp;if(this.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();const s=r.sampleRate;t.setTimestamp(Math.round(a*s)/s),e(t)},s=Fn.find(e=>e.supports(i,r));if(s)this.customDecoder=new s,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof Pn))throw new TypeError("The argument passed to onSample must be an AudioSample.");a(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:e=>{try{a(new Pn(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(n(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--)):(n(this.decoder),this.expectedFirstTimestamp??(this.expectedFirstTimestamp=e.timestamp),this.decoder.decode(e.toEncodedAudioChunk()))}async flush(){this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(n(this.decoder),await this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(n(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class $n extends On{constructor(e,t,i){super(e,t),this.decoderConfig=i,this.currentTimestamp=null,n(Kt.includes(i.codec)),this.codec=i.codec;const{dataType:r,sampleSize:a,littleEndian:s}=si(this.codec);switch(this.inputSampleSize=a,a){case 1:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint8(t)-128:"signed"===r?this.readInputValue=(e,t)=>e.getInt8(t):"ulaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=~e;128&r&&(r&=-129,t=-1),i=5+((240&r)>>4);const a=(1<(e=>{let t=0,i=0,r=85^e;128&r&&(r&=-129,t=-1),i=4+((240&r)>>4);let a=0;return a=4!==i?1<e.getUint16(t,s)-32768:"signed"===r?this.readInputValue=(e,t)=>e.getInt16(t,s):n(!1);break;case 3:"unsigned"===r?this.readInputValue=(e,t)=>O(e,t,s)-2**23:"signed"===r?this.readInputValue=(e,t)=>((e,t,i)=>O(e,t,i)<<8>>8)(e,t,s):n(!1);break;case 4:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint32(t,s)-2**31:"signed"===r?this.readInputValue=(e,t)=>e.getInt32(t,s):"float"===r?this.readInputValue=(e,t)=>e.getFloat32(t,s):n(!1);break;case 8:"float"===r?this.readInputValue=(e,t)=>e.getFloat64(t,s):n(!1);break;default:N(a),n(!1)}switch(a){case 1:"ulaw"===r||"alaw"===r?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(e,t,i)=>e.setUint8(t,i+128));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i<<8,!0);break;case 4:this.outputSampleSize=4,"float"===r?(this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0)):(this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0);break;default:N(a),n(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=f(e.data),i=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,r=i*this.decoderConfig.numberOfChannels*this.outputSampleSize,a=new ArrayBuffer(r),s=new DataView(a);for(let l=0;l=n)&&(this.currentTimestamp=e.timestamp);const o=this.currentTimestamp;this.currentTimestamp+=n;const c=new Pn({format:this.outputFormat,data:a,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:i,timestamp:o});this.onSample(c)}async flush(){}close(){}}class Gn extends Ln{constructor(e){if(!(e instanceof to))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=e}async _createDecoder(e,t){if(!(await this._track.canDecode())){if("undefined"===typeof AudioDecoder)throw new Error(ne("AudioDecoder"));throw new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=await this._track.getCodec(),r=await this._track.getDecoderConfig();return n(i&&r),Kt.includes(r.codec)?new $n(e,t,r):new Xn(e,t,i,r)}_createPacketSink(){return new Nn(this._track)}async getSample(e,t={}){Dn(e);for await(const i of this.mediaSamplesAtTimestamps([e],t))return i;throw new Error("Internal error: Iterator returned nothing.")}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Qn{constructor(e){if(!(e instanceof to))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new Gn(e)}_audioSampleToWrappedArrayBuffer(e){const t={buffer:e.toAudioBuffer(),timestamp:e.timestamp,duration:e.duration};return e.close(),t}async getBuffer(e,t){Dn(e);const i=await this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)}buffers(e,t,i){return z(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return z(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class Yn{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof eo}isAudioTrack(){return this instanceof to}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}async getInternalCodecId(){return this._backing.getInternalCodecId()}get internalCodecId(){return Jn(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}async getLanguageCode(){return this._backing.getLanguageCode()}get languageCode(){return Jn(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}async getName(){return this._backing.getName()}get name(){return Jn(this._backing.getName(),"name","getName")}async getTimeResolution(){return this._backing.getTimeResolution()}get timeResolution(){return Jn(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}async isRelativeToUnixEpoch(){return this._backing.isRelativeToUnixEpoch()}async getUnixTimeForTimestamp(e){return this._backing.getUnixTimeForTimestamp(e)}async hasUnixTimeMapping(){return null!==await this._backing.getUnixTimeForTimestamp(await this.getFirstTimestamp())}async getDisposition(){return this._backing.getDisposition()}get disposition(){return Jn(this._backing.getDisposition(),"disposition","getDisposition")}async getBitrate(){return this._backing.getBitrate()}async getAverageBitrate(){return this._backing.getAverageBitrate()}async getFirstTimestamp(){const e=await this._backing.getFirstPacket({metadataOnly:!0});return e?.timestamp??0}async computeDuration(e){const t=await this._backing.getPacket(1/0,{metadataOnly:!0,...e});return V((t?.timestamp??0)+(t?.duration??0),await this.getTimeResolution())}async getDurationFromMetadata(e={}){return this._backing.getDurationFromMetadata(e)}async computePacketStats(e=1/0,t){const i=new Nn(this);let r=1/0,a=-1/0,s=0,n=0;for await(const o of i.packets(void 0,void 0,{metadataOnly:!0,...t})){if(s>=e&&o.timestamp>=a)break;r=Math.min(r,o.timestamp),a=Math.max(a,o.timestamp+o.duration),s++,n+=o.byteLength}return{packetCount:s,averagePacketRate:s?Number((s/(a-r)).toPrecision(16)):0,averageBitrate:s?Number((8*n/(a-r)).toPrecision(16)):0}}async isLive(){return null!==await this._backing.getLiveRefreshInterval()}async getLiveRefreshInterval(){return this._backing.getLiveRefreshInterval()}canBePairedWith(e){if(!(e instanceof Yn))throw new TypeError("other must be an InputTrack.");return this.input===e.input&&this!==e&&0n!==(this._backing.getPairingMask()&e._backing.getPairingMask())}async getPairableTracks(e){return this.input.getTracks(so({filter:e=>e.canBePairedWith(this)},e))}async getPairableVideoTracks(e){return this.input.getVideoTracks(so({filter:e=>e.canBePairedWith(this)},e))}async getPairableAudioTracks(e){return this.input.getAudioTracks(so({filter:e=>e.canBePairedWith(this)},e))}async getPrimaryPairableVideoTrack(e){return this.input.getPrimaryVideoTrack(so({filter:e=>e.canBePairedWith(this)},e))}async getPrimaryPairableAudioTrack(e){return this.input.getPrimaryAudioTrack(so({filter:e=>e.canBePairedWith(this)},e))}async hasPairableTrack(e){e&&(e=Zn(e));const t=await this.input.getTracks();for(const i of t)if(this.canBePairedWith(i)&&(!e||await e(i)))return!0;return!1}hasPairableVideoTrack(e){return e&&(e=Zn(e)),this.hasPairableTrack(async t=>t.isVideoTrack()&&(!e||await e(t)))}hasPairableAudioTrack(e){return e&&(e=Zn(e)),this.hasPairableTrack(async t=>t.isAudioTrack()&&(!e||await e(t)))}}const Jn=(e,t,i)=>{if(ce(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},Zn=e=>{if(void 0!==e&&"function"!==typeof e)throw new TypeError("predicate, when provided, must be a function.");return e?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("predicate must return or resolve to a boolean value.");return e},r=e(t);return ce(r)?r.then(i):i(r)}:void 0};class eo extends Yn{constructor(e,t){super(e,t),this._pixelAspectRatioCache=null,this._backing=t}get type(){return"video"}async getCodec(){return this._backing.getCodec()}get codec(){return Jn(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await(this._backing.getHasOnlyKeyPackets?.())??"prores"===await this._backing.getCodec()}async getCodedWidth(){return this._backing.getCodedWidth()}get codedWidth(){return Jn(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}async getCodedHeight(){return this._backing.getCodedHeight()}get codedHeight(){return Jn(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}async getRotation(){return this._backing.getRotation()}get rotation(){return Jn(this._backing.getRotation(),"rotation","getRotation")}async getSquarePixelWidth(){return this._backing.getSquarePixelWidth()}get squarePixelWidth(){return Jn(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}async getSquarePixelHeight(){return this._backing.getSquarePixelHeight()}get squarePixelHeight(){return Jn(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}async getPixelAspectRatio(){return this._pixelAspectRatioCache??(this._pixelAspectRatioCache=ke({num:await this.getSquarePixelWidth()*await this.getCodedHeight(),den:await this.getSquarePixelHeight()*await this.getCodedWidth()}))}get pixelAspectRatio(){return this._pixelAspectRatioCache??(this._pixelAspectRatioCache=ke({num:Jn(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*Jn(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:Jn(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*Jn(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")}))}async getDisplayWidth(){const e=await(this._backing.getMetadataDisplayWidth?.());if(null!=e)return e;return await this.getRotation()%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight()}get displayWidth(){const e=this._backing.getMetadataDisplayWidth?.();if(void 0!==e){const t=Jn(e,"displayWidth","getDisplayWidth");if(null!==t)return t}const t=Jn(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return Jn(t,"displayWidth","getDisplayWidth")}async getDisplayHeight(){const e=await(this._backing.getMetadataDisplayHeight?.());if(null!=e)return e;return await this.getRotation()%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth()}get displayHeight(){const e=this._backing.getMetadataDisplayHeight?.();if(void 0!==e){const t=Jn(e,"displayHeight","getDisplayHeight");if(null!==t)return t}const t=Jn(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return Jn(t,"displayHeight","getDisplayHeight")}async getColorSpace(){return this._backing.getColorSpace()}async hasHighDynamicRange(){const e=await this._backing.getColorSpace();return"bt2020"===e.primaries||"smpte432"===e.primaries||"pq"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix}async canBeTransparent(){return this._backing.canBeTransparent()}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const e=await(this._backing.getMetadataCodecParameterString?.());if(null!=e)return e;const t=await this._backing.getDecoderConfig();return t?.codec??null}async canDecode(){try{const e=await this._backing.getDecoderConfig();if(!e)return!1;const t=await this._backing.getCodec();if(n(null!==t),Rn.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(await VideoDecoder.isConfigSupported(e)).supported}catch(e){return ve._error("Error during decodability check:",e),!1}}async determinePacketType(e){if(!(e instanceof bi))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const t=await this.getCodec();if(null===t)return null;const i=await this.getDecoderConfig();return n(i),Tt(t,i,e.data)}async computeFrameRateMetrics(e={}){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.targetPacketCount&&(!fe(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");const t=await this.getTimeResolution(),i=e.targetPacketCount??256,r=new Nn(this),a=[];let s=-1/0,n=0;for await(const I of r.packets(void 0,void 0,{metadataOnly:!0})){if(a.length>=i&&I.timestamp>=s)break;a.push(I.timestamp),s=Math.max(s,I.timestamp),n++}const o=new Float64Array(a.length);for(let I=0;Ie-t),b=k-1>>1,w=k>>1;let T=0,S=0,v=0;for(const I of y)if(v+=f.get(I),0===T&&v>b&&(T=I),v>w){S=I;break}const P=(d/T+d/S)/2;return{underlyingFrameRate:u,bestGuessFrameRate:null!==u?u:lo(P),minFrameRate:d/p,maxFrameRate:d/m,averageFrameRate:d*k/g,medianFrameRate:P,frameRateIsConstant:null!==u&&1===m&&1===p,probedPacketCount:n}}}class to extends Yn{constructor(e,t){super(e,t),this._backing=t}get type(){return"audio"}async getCodec(){return this._backing.getCodec()}get codec(){return Jn(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await(this._backing.getHasOnlyKeyPackets?.())??!0}async getNumberOfChannels(){return this._backing.getNumberOfChannels()}get numberOfChannels(){return Jn(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}async getSampleRate(){return this._backing.getSampleRate()}get sampleRate(){return Jn(this._backing.getSampleRate(),"sampleRate","getSampleRate")}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const e=await(this._backing.getMetadataCodecParameterString?.());if(null!=e)return e;const t=await this._backing.getDecoderConfig();return t?.codec??null}async canDecode(){try{const e=await this._backing.getDecoderConfig();if(!e)return!1;const t=await this._backing.getCodec();if(n(null!==t),Fn.some(i=>i.supports(t,e)))return!0;if(e.codec.startsWith("pcm-"))return!0;if("undefined"===typeof AudioDecoder)return!1;return!0===(await AudioDecoder.isConfigSupported(e)).supported}catch(e){return ve._error("Error during decodability check:",e),!1}}async determinePacketType(e){if(!(e instanceof bi))throw new TypeError("packet must be an EncodedPacket.");return null===await this.getCodec()?null:"key"}}const io=e=>-(e??-1/0),ro=e=>-e,ao=e=>{if("object"!==typeof e||!e)throw new TypeError("query must be an object.");if(void 0!==e.filter&&"function"!==typeof e.filter)throw new TypeError("query.filter, when provided, must be a function.");if(void 0!==e.sortBy&&"function"!==typeof e.sortBy)throw new TypeError("query.sortBy, when provided, must be a function.");return{filter:e.filter?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("query.filter must return or resolve to a boolean.");return e},r=e.filter(t);return ce(r)?r.then(i):i(r)}:void 0,sortBy:e.sortBy?t=>{const i=e=>{if("number"!==typeof e&&(!Array.isArray(e)||!e.every(e=>"number"===typeof e)))throw new TypeError("query.sortBy must return or resolve to a number or an array of numbers.");return e},r=e.sortBy(t);return ce(r)?r.then(i):i(r)}:void 0}},so=(e,t)=>({filter:e?.filter||t?.filter?i=>{const r=e?.filter?.(i)??!0,a=e=>!1!==e&&(t?.filter?.(i)??!0);return ce(r)?r.then(a):a(r)}:void 0,sortBy:e?.sortBy||t?.sortBy?i=>{const r=e?.sortBy?.(i)??[],a=t?.sortBy?.(i)??[],s=(e,t)=>[...Array.isArray(e)?e:[e],...Array.isArray(t)?t:[t]];return ce(r)||ce(a)?Promise.all([r,a]).then(([e,t])=>s(e,t)):s(r,a)}:void 0}),no=async(e,t)=>{let i=e;if(t?.filter){const r=e.map(e=>t.filter(e));if(r.some(e=>ce(e))){const t=await Promise.all(r);i=e.filter((e,i)=>t[i])}else i=e.filter((e,t)=>r[t])}if(!t?.sortBy)return i;const r=i.map(e=>t.sortBy(e)),a=r.some(e=>ce(e))?await Promise.all(r):r;return i.map((e,t)=>({track:e,sortValue:a[t]})).sort((e,t)=>{const i=Array.isArray(e.sortValue)?e.sortValue:[e.sortValue],r=Array.isArray(t.sortValue)?t.sortValue:[t.sortValue],a=Math.max(i.length,r.length);for(let s=0;se.track)},oo=(e,t)=>{const i=1e6,r=1+1e-9,a=[12,15,20,24e3/1001,24,25,3e4/1001,30,48,50,6e4/1001,60,100,12e4/1001,120,144,240];if(e.length<2)return null;const s=new Float64Array(e.length-1);for(let T=1;T0))return null;s[T-1]=t}const n=s.slice();n.sort();let o=n[Math.floor(.05*n.length)];for(let T=0;T<6;T++){let e=0,t=0;for(const a of s){const i=Math.max(1,Math.round(a/o));Math.abs(a-i*o)>=r||(e+=a,t+=i)}if(0===t)return null;const i=e/t;if(Math.abs(i-o)<=1e-12*Math.max(1,o)){o=i;break}o=i}let c=0,l=0,u=0;for(const T of s){const e=Math.max(1,Math.round(T/o));Math.abs(T-e*o)>=r||(c++,l+=T,u+=e)}if(c/s.length<.98)return null;o=l/u;const d=1/Math.min(u,1e3),h=Math.max(Number.EPSILON,o-d),f=o+d,m=t/f,p=t/h,g=t/o;let k=null,y=1/0;for(const T of a){if(Tp)continue;const e=Math.abs(T/g-1);e{for(let r=1;r<=i;r++){const i=Math.floor(e*r)+1;if(i/r{const t=[24/1.001,30/1.001,60/1.001,120/1.001],i=[12,15,20,24,25,30,48,50,60,100,120,144,240];for(const s of t)if(Math.abs(s/e-1)<=5e-4)return s;let r=e,a=1/0;for(const s of i){const t=Math.abs(s/e-1);t<=.025&&t!(e instanceof xs)))throw new TypeError("options.formats must be an array of InputFormat.");if(!(e.source instanceof Ja||e.source instanceof Za))throw new TypeError("options.source must be a Source or SourceRef.");if(e.source instanceof Ja&&e.source._disposed)throw new TypeError("options.source must not be a disposed Source.");if(void 0!==e.initInput&&!(e.initInput instanceof ho))throw new TypeError("options.initInput, when provided, must be an Input.");void 0!==e.formatOptions&&((e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(`${t}, when provided, must be an object.`);if(void 0!==e.isobmff){if(!e.isobmff||"object"!==typeof e.isobmff)throw new TypeError(`${t}.isobmff, when provided, must be an object.`);if(void 0!==e.isobmff.resolveKeyId&&"function"!==typeof e.isobmff.resolveKeyId)throw new TypeError(`${t}.isobmff.resolveKeyId, when provided, must be a function.`)}if(void 0!==e.hls){if(!e.hls||"object"!==typeof e.hls)throw new TypeError(`${t}.hls, when provided, must be an object.`);if(void 0!==e.hls.offsetTimestampsByDateTime&&"boolean"!==typeof e.hls.offsetTimestampsByDateTime)throw new TypeError(`${t}.hls.offsetTimestampsByDateTime, when provided, must be a boolean.`)}})(e.formatOptions,"formatOptions"),this._formats=e.formats,this._initInput=e.initInput??null,this._formatOptions=e.formatOptions??{},e.source instanceof Ja?this._rootRef=e.source.ref():this._rootRef=e.source,this._sourceRefs.push(this._rootRef)}get _rootSource(){return this._rootRef.source}async _getSourceUncached(e){n(this._rootSource instanceof es);const t=await this._rootSource._resolveRequest(e);return this._emit("source",{source:t.source,request:e,isRoot:e.isRoot}),t}_getSourceCached(e,t=1){const i=this._sourceCache.find(i=>i.cacheGroup===t&&ts(i.request,e));if(i)return i.age++,Promise.resolve(i.sourceRef.source.ref());const r=this._sourceCachePromises.find(i=>i.cacheGroup===t&&ts(i.request,e));if(r)return r.promise.then(e=>e.sourceRef.source.ref());const a=(async()=>{const i=await this._getSourceUncached(e);if(pe(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount)>=4){const e=ge(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount?e.age:1/0);n(-1!==e);const i=this._sourceCache[e];this._sourceCache.splice(e,1),i.sourceRef.free(),A(this._sourceRefs,i.sourceRef)}this._sourceRefs.push(i);const r=this._sourceCachePromises.findIndex(t=>t.request===e);n(-1!==r),this._sourceCachePromises.splice(r,1);return{request:e,sourceRef:i,age:this._nextSourceCacheAge++,cacheGroup:t}})();return this._sourceCachePromises.push({request:e,cacheGroup:t,promise:a}),a.then(e=>{const t=e.sourceRef.source.ref();return this._sourceCache.push(e),t})}_getDemuxer(){return this._demuxerPromise??(this._demuxerPromise=(async()=>{this._reader=new po(this._rootSource),this._emit("source",{source:this._rootSource,request:null,isRoot:!0});for(const e of this._formats){if(await e._canReadInput(this))return this._format=e,this._onFormatDetermined?.(e),e._createDemuxer(this)}throw new fo})())}get source(){return this._rootSource}async getFormat(){return await this._getDemuxer(),n(this._format),this._format}async canRead(){try{return await this._getDemuxer(),!0}catch(e){if(e instanceof fo)return!1;throw e}}async getFirstTimestamp(e){e??(e=await this.getTracks());const t=e.filter(e=>null!==e);if(0===t.length)return 0;const i=await Promise.all(t.map(e=>e._backing.getFirstPacket({metadataOnly:!0}))),r=Math.min(...i.map(e=>e?.timestamp??1/0));return r===1/0?0:r}async computeDuration(e,t){e??(e=await this.getTracks());const i=e.filter(e=>null!==e);if(0===i.length)return 0;const r=await Promise.all(i.map(e=>e.computeDuration(t)));return Math.max(...r)}async getDurationFromMetadata(e,t){e??(e=await this.getTracks());const i=e.filter(e=>null!==e),r=(await Promise.all(i.map(e=>e.getDurationFromMetadata(t)))).filter(e=>null!==e);return 0===r.length?null:Math.max(...r)}async getTracks(e){e&&(e=ao(e));const t=(await this._getTrackBackings()).map(e=>this._wrapBackingAsTrack(e));return no(t,e)}async getVideoTracks(e){e&&(e=ao(e));const t=(await this.getTracks()).filter(e=>e.isVideoTrack());return no(t,e)}async getAudioTracks(e){e&&(e=ao(e));const t=(await this.getTracks()).filter(e=>e.isAudioTrack());return no(t,e)}async getPrimaryVideoTrack(e){e&&(e=ao(e));const t=so(e,{sortBy:async e=>[ro((await e.getDisposition()).default),ro(await e.hasPairableAudioTrack()),ro(!(await e.hasOnlyKeyPackets())),io(await e.getBitrate())]});return(await this.getVideoTracks(t))[0]??null}async getPrimaryAudioTrack(e){e&&(e=ao(e));const t=await this.getPrimaryVideoTrack(),i=so(e,{sortBy:async e=>[ro(!t||e.canBePairedWith(t)),ro((await e.getDisposition()).default),io(await e.getBitrate())]});return(await this.getAudioTracks(i))[0]??null}async _getTrackBackings(){const e=await this._getDemuxer();return this._trackBackingsCache??(this._trackBackingsCache=await e.getTrackBackings())}_wrapBackingAsTrack(e){const t=this._backingToTrack.get(e);if(t)return t;const i="video"===e.getType()?new eo(this,e):new to(this,e);return this._backingToTrack.set(e,i),i}async getMimeType(){return(await this._getDemuxer()).getMimeType()}async getMetadataTags(){return(await this._getDemuxer()).getMetadataTags()}dispose(){if(!this._disposed){this._disposed=!0;for(const e of this._sourceRefs)e.free();this._sourceRefs.length=0,this._demuxerPromise&&this._demuxerPromise.then(e=>e.dispose()).catch(()=>{})}}[Symbol.dispose](){this.dispose()}}class fo extends Error{constructor(e="Input has an unsupported or unrecognizable format."){super(e),this.name="UnsupportedInputFormatError"}}class mo extends Error{constructor(e="Input has been disposed."){super(e),this.name="InputDisposedError"}}class po{constructor(e){this.source=e}get fileSize(){const e=this.source._getFileSize();if(void 0===e)throw new Error("Reading file size too early; read required first.");return e}get fileSizeNonStrict(){return this.source._getFileSize()??null}requestSlice(e,t){if(this.source._disposed)throw new mo;if(e<0)return null;if(null!==this.fileSizeNonStrict&&e+t>this.fileSizeNonStrict)return null;if(0===t){const t=new Uint8Array(0);return new go(t,f(t),0,e,e)}const i=e+t,r=this.source._read(e,i,0,Ya);return ce(r)?r.then(t=>t?new go(t.bytes,t.view,t.offset,e,i):null):r?new go(r.bytes,r.view,r.offset,e,i):null}requestSliceRange(e,t,i){if(this.source._disposed)throw new mo;if(e<0)return null;if(null!==this.fileSizeNonStrict)return this.requestSlice(e,U(this.fileSizeNonStrict-e,t,i));{const r=this.requestSlice(e,i),a=r=>r||(n(null!==this.fileSizeNonStrict),this.requestSlice(e,U(this.fileSizeNonStrict-e,t,i)));return ce(r)?r.then(a):a(r)}}requestEntireFile(){if(null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);return(async()=>{const e=[];let t=0;for(;;){if(1===e.length&&null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);let i=this.requestSliceRange(t,0,1024);if(ce(i)&&(i=await i),!i||0===i.length)break;const r=yo(i,i.length);e.push(r),t+=i.length}const i=new Uint8Array(t);let r=0;for(const a of e)i.set(a,r),r+=a.length;return new go(i,f(i),0,0,t)})()}}class go{constructor(e,t,i,r,a){this.bytes=e,this.view=t,this.offset=i,this.start=r,this.end=a,this.bufferPos=r-i}static tempFromBytes(e){return new go(e,f(e),0,0,e.length)}get length(){return this.end-this.start}get filePos(){return this.offset+this.bufferPos}set filePos(e){this.bufferPos=e-this.offset}get remainingLength(){return Math.max(this.end-this.filePos,0)}skip(e){this.bufferPos+=e}slice(e,t=this.end-e){if(ethis.end)throw new RangeError("Slicing outside of original slice.");return new go(this.bytes,this.view,this.offset,e,e+t)}}const ko=(e,t)=>{if(e.filePose.end)throw new RangeError(`Tried reading [${e.filePos}, ${e.filePos+t}), but slice is [${e.start}, ${e.end}). This is likely an internal error, please report it alongside the file that caused it.`)},yo=(e,t)=>{ko(e,t);const i=e.bytes.subarray(e.bufferPos,e.bufferPos+t);return e.bufferPos+=t,i},bo=e=>(ko(e,1),e.view.getUint8(e.bufferPos++)),wo=(e,t)=>{ko(e,2);const i=e.view.getUint16(e.bufferPos,t);return e.bufferPos+=2,i},To=e=>{ko(e,2);const t=e.view.getUint16(e.bufferPos,!1);return e.bufferPos+=2,t},So=e=>{ko(e,3);const t=O(e.view,e.bufferPos,!1);return e.bufferPos+=3,t},vo=e=>{ko(e,2);const t=e.view.getInt16(e.bufferPos,!1);return e.bufferPos+=2,t},Po=(e,t)=>{ko(e,4);const i=e.view.getUint32(e.bufferPos,t);return e.bufferPos+=4,i},Io=e=>{ko(e,4);const t=e.view.getUint32(e.bufferPos,!1);return e.bufferPos+=4,t},xo=e=>{ko(e,4);const t=e.view.getUint32(e.bufferPos,!0);return e.bufferPos+=4,t},Co=e=>{ko(e,4);const t=e.view.getInt32(e.bufferPos,!1);return e.bufferPos+=4,t},Bo=(e,t)=>{let i,r;return t?(i=Po(e,!0),r=Po(e,!0)):(r=Po(e,!1),i=Po(e,!1)),4294967296*r+i},Eo=e=>4294967296*Io(e)+Io(e),_o=e=>4294967296*Co(e)+Io(e),Ro=e=>{const t=xo(e),i=(e=>{ko(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},Fo=e=>{ko(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},Ao=e=>{ko(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},Do=(e,t)=>{ko(e,t);let i="";for(let r=0;rm.decode(yo(e,t)).split("\n").map(e=>e.trim()).filter(e=>e.length>0&&!i?.ignore?.(e));var No,Oo,Lo,zo;(Oo=No||(No={}))[Oo.Unsynchronisation=128]="Unsynchronisation",Oo[Oo.ExtendedHeader=64]="ExtendedHeader",Oo[Oo.ExperimentalIndicator=32]="ExperimentalIndicator",Oo[Oo.Footer=16]="Footer",(zo=Lo||(Lo={}))[zo.ISO_8859_1=0]="ISO_8859_1",zo[zo.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",zo[zo.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",zo[zo.UTF_8=3]="UTF_8";const Uo=128,qo=10,Wo=["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"],Ho=(e,t)=>{var i;const r=e.filePos;t.raw??(t.raw={}),(i=t.raw).TAG??(i.TAG=yo(e,Uo-3)),e.filePos=r;const a=Vo(e,30);a&&(t.title??(t.title=a));const s=Vo(e,30);s&&(t.artist??(t.artist=s));const n=Vo(e,30);n&&(t.album??(t.album=n));const o=Vo(e,4),c=Number.parseInt(o,10);Number.isInteger(c)&&c>0&&(t.date??(t.date=new Date(String(c))));const l=yo(e,30);let u;if(0===l[28]&&0!==l[29]){const i=l[29];i>0&&(t.trackNumber??(t.trackNumber=i)),e.skip(-30),u=Vo(e,28),e.skip(2)}else e.skip(-30),u=Vo(e,30);u&&(t.comment??(t.comment=u));const d=bo(e);d{const i=yo(e,t),r=le(i.indexOf(0),i.length),a=i.subarray(0,r);let s="";for(let n=0;n{const t=e.filePos,i=Do(e,3),r=bo(e),a=bo(e),s=bo(e),n=Io(e);if("ID3"!==i||255===r||255===a||0!==(2155905152&n))return e.filePos=t,null;let o=fi(n);return s&No.Footer&&(o+=qo),{majorVersion:r,revision:a,flags:s,size:o}},Ko=(e,t,i)=>{var r,a,s,n,o;if(![2,3,4].includes(t.majorVersion))return void ve._warn(`Unsupported ID3v2 major version: ${t.majorVersion}`);const c=t.flags&No.Footer?t.size-qo:t.size,l=yo(e,c),u=new Xo(t,l);if(t.flags&No.Unsynchronisation&&3===t.majorVersion&&u.ununsynchronizeAll(),t.flags&No.ExtendedHeader){const e=u.readU32();3===t.majorVersion?u.pos+=e:u.pos+=e-4}for(;u.pos<=u.bytes.length-u.frameHeaderSize();){const e=u.readId3V2Frame();if(!e)break;const c=u.pos,l=u.pos+e.size;let d=!1,h=!1,f=!1;if(3===t.majorVersion?(d=!!(64&e.flags),h=!!(128&e.flags)):4===t.majorVersion&&(d=!!(4&e.flags),h=!!(8&e.flags),f=!!(2&e.flags)||!!(t.flags&No.Unsynchronisation)),d)ve._warn(`Skipping encrypted ID3v2 frame ${e.id}`),u.pos=l;else if(h)ve._warn(`Skipping compressed ID3v2 frame ${e.id}`),u.pos=l;else{if(f&&u.ununsynchronizeRegion(u.pos,l),i.raw??(i.raw={}),"TXXX"===e.id){const e=(r=i.raw).TXXX??(r.TXXX={}),t=u.readId3V2TextEncoding(),a=u.readId3V2Text(t,l),s=u.readId3V2Text(t,l);e[a]??(e[a]=s)}else"T"===e.id[0]?(a=i.raw)[s=e.id]??(a[s]=u.readId3V2EncodingAndText(l)):(n=i.raw)[o=e.id]??(n[o]=u.readBytes(e.size));switch(u.pos=c,e.id){case"TIT2":case"TT2":i.title??(i.title=u.readId3V2EncodingAndText(l));break;case"TIT3":case"TT3":i.description??(i.description=u.readId3V2EncodingAndText(l));break;case"TPE1":case"TP1":i.artist??(i.artist=u.readId3V2EncodingAndText(l));break;case"TALB":case"TAL":i.album??(i.album=u.readId3V2EncodingAndText(l));break;case"TPE2":case"TP2":i.albumArtist??(i.albumArtist=u.readId3V2EncodingAndText(l));break;case"TRCK":case"TRK":{const e=u.readId3V2EncodingAndText(l).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(i.trackNumber??(i.trackNumber=t)),r&&Number.isInteger(r)&&r>0&&(i.tracksTotal??(i.tracksTotal=r))}break;case"TPOS":case"TPA":{const e=u.readId3V2EncodingAndText(l).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(i.discNumber??(i.discNumber=t)),r&&Number.isInteger(r)&&r>0&&(i.discsTotal??(i.discsTotal=r))}break;case"TCON":case"TCO":{const e=u.readId3V2EncodingAndText(l);let t=/^\((\d+)\)/.exec(e);if(t){const e=Number.parseInt(t[1]);if(void 0!==Wo[e]){i.genre??(i.genre=Wo[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==Wo[e]){i.genre??(i.genre=Wo[e]);break}}i.genre??(i.genre=e)}break;case"TDRC":case"TDAT":{const e=u.readId3V2EncodingAndText(l),t=new Date(e);Number.isNaN(t.getTime())||(i.date??(i.date=t))}break;case"TYER":case"TYE":{const e=u.readId3V2EncodingAndText(l),t=Number.parseInt(e,10);Number.isInteger(t)&&(i.date??(i.date=new Date(String(t))))}break;case"USLT":case"ULT":{const e=u.readU8();u.pos+=3,u.readId3V2Text(e,l),i.lyrics??(i.lyrics=u.readId3V2Text(e,l))}break;case"COMM":case"COM":{const e=u.readU8();u.pos+=3,u.readId3V2Text(e,l),i.comment??(i.comment=u.readId3V2Text(e,l))}break;case"APIC":case"PIC":{const e=u.readId3V2TextEncoding();let r;if(2===t.majorVersion){const e=u.readAscii(3);r="PNG"===e?"image/png":"JPG"===e?"image/jpeg":"image/*"}else r=u.readId3V2Text(e,l);const a=u.readU8(),s=u.readId3V2Text(e,l).trimEnd(),n=l-u.pos;if(n>=0){const e=u.readBytes(n);i.images||(i.images=[]),i.images.push({data:e,mimeType:r,kind:3===a?"coverFront":4===a?"coverBack":"unknown",description:s})}}break;default:u.pos+=e.size}u.pos=l}}};class Xo{constructor(e,t){this.header=e,this.bytes=t,this.pos=0,this.view=new DataView(t.buffer,t.byteOffset,t.byteLength)}frameHeaderSize(){return 2===this.header.majorVersion?6:10}ununsynchronizeAll(){const e=[];for(let t=0;t{const t=this.pos+e;if(t>this.bytes.length)return!1;if(t<=this.bytes.length-this.frameHeaderSize()){this.pos+=e;const t=this.readAscii(4);if("\0\0\0\0"!==t&&!/[0-9A-Z]{4}/.test(t))return!1}return!0};if(!s(i)){const e=4===this.header.majorVersion?t:fi(t);s(e)&&(i=e)}return this.pos=a,{id:e,size:i,flags:r}}}readId3V2TextEncoding(){const e=this.readU8();if(e>3)throw new Error(`Unsupported text encoding: ${e}`);return e}readId3V2Text(e,t){const i=this.pos,r=this.readBytes(t-this.pos);switch(e){case Lo.ISO_8859_1:{let e="";for(let t=0;t0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}if(254===r[0]&&255===r[1]){const e=new TextDecoder("utf-16be"),t=le(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}{const e=le(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),m.decode(r.subarray(0,e))}case Lo.UTF_16_BE_NO_BOM:{const e=new TextDecoder("utf-16be"),t=le(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(0,t))}case Lo.UTF_8:{const e=le(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),m.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class $o{constructor(e){this.events=e,this.input=null,this.audioSink=null,this.audioIterator=null,this.audioContext=null,this.gainNode=null,this.audioContextStartTime=0,this.playbackTimeAtStart=0,this.latestScheduledEndTime=0,this.duration=Number.NaN,this.paused=!0,this.volume=.7,this.muted=!1,this.playbackRate=1,this.asyncId=0,this.queuedNodes=new Set}get currentTime(){return this.paused?this.playbackTimeAtStart:(this.audioContext.currentTime-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart}ensureAudioContext(e){if(this.audioContext)return;const t=window.AudioContext||window.webkitAudioContext;try{this.audioContext=new t({sampleRate:e})}catch{this.audioContext=new t}this.gainNode=this.audioContext.createGain(),this.gainNode.connect(this.audioContext.destination),this.updateGain()}updateGain(){if(!this.gainNode)return;const e=this.muted?0:this.volume;this.gainNode.gain.value=e*e}stopQueuedNodes(){this.queuedNodes.forEach(e=>e.stop()),this.queuedNodes.clear()}async stopIterator(){await(this.audioIterator?.return()),this.audioIterator=null}handleNoAudioTrack(){this.audioSink=null,this.ensureAudioContext()}async load(e,t){++this.asyncId,await this.stopIterator(),this.stopQueuedNodes(),this.paused=!0,this.playbackTimeAtStart=0,this.audioContextStartTime=0;const{input:i,audioTrack:r,duration:a}=e;return this.input=i,this.duration=a,r?null!==r.codec&&await r.canDecode()?(this.ensureAudioContext(r.sampleRate),this.audioSink=new Qn(r),void t?.()):(this.audioSink=null,this.ensureAudioContext(),void t?.()):(this.handleNoAudioTrack(),void t?.())}async runIterator(e){if(!this.audioSink)return;await this.stopIterator(),this.audioIterator=this.audioSink.buffers(this.currentTime);for(;;){if(e!==this.asyncId||this.paused)return;const i=[];let r=!1;try{for(let e=0;e<16;e++){const e=await this.audioIterator.next();if(e.done){r=!0;break}i.push(e.value)}}catch(t){console.error("Audio iterator error:",t),r=!0}if(e!==this.asyncId||this.paused)return;i.length>0&&"suspended"===this.audioContext.state&&(await this.audioContext.resume(),this.events.emit("canplay"),this.events.emit("playing"));for(const{buffer:e,timestamp:t}of i){const i=this.audioContext.createBufferSource();i.buffer=e,i.connect(this.gainNode),i.playbackRate.value=this.playbackRate;const r=this.audioContextStartTime+(t-this.playbackTimeAtStart)/this.playbackRate,a=(r+e.duration/this.playbackRate-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart;a>this.latestScheduledEndTime&&(this.latestScheduledEndTime=a),r>=this.audioContext.currentTime?i.start(r):i.start(this.audioContext.currentTime,(this.audioContext.currentTime-r)*this.playbackRate),this.queuedNodes.add(i),i.onended=()=>this.queuedNodes.delete(i)}if(r)break;await new Promise(e=>setTimeout(e,0));const a=1;for(;this.latestScheduledEndTime-this.currentTime>a;){if(e!==this.asyncId||this.paused)return;await new Promise(e=>setTimeout(e,50))}}}async play(){if(!this.paused)return;this.audioContext||this.ensureAudioContext(),"suspended"===this.audioContext.state&&await this.audioContext.resume(),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart,this.paused=!1;const e=++this.asyncId;this.runIterator(e)}pause(){this.paused||(this.playbackTimeAtStart=this.currentTime,this.paused=!0,this.stopIterator(),this.stopQueuedNodes())}async seek(e){this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart;const t=++this.asyncId;this.paused||this.runIterator(t)}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){if(e!==this.playbackRate&&(this.paused||(this.playbackTimeAtStart=this.currentTime,this.audioContextStartTime=this.audioContext.currentTime),this.playbackRate=e,!this.paused)){const e=++this.asyncId;this.runIterator(e)}}destroy(){this.asyncId++,this.pause(),this.audioContext?.close(),this.audioContext=null,this.input=null,this.audioSink=null}}async function Go(e){return await e.getAverageBitrate()??await e.getBitrate()??0}const Qo=/\.m3u8(?:$|[?#])/i;function Yo(e){return"string"===typeof e&&Qo.test(e)}function Jo(e){const t=function(e){return"string"===typeof e?new os(e):e instanceof Blob?new as(e):"undefined"!==typeof ReadableStream&&e instanceof ReadableStream?new us(e):e??null}(e);return t?new ho({source:t,formats:Yo(e)?Ys:Qs}):null}class Zo{constructor(){this.active=!0,this.input=null,this.timers=new Set,this.controller="undefined"===typeof AbortController?void 0:new AbortController,this.cancellation=new Promise(e=>{this.resolveCancellation=e})}get signal(){return this.controller?.signal}own(e){this.active?this.input=e:e.dispose()}defer(e){if(!this.active)return;const t=setTimeout(()=>{this.timers.delete(t),this.active&&e()},0);this.timers.add(t)}async wait(e,t){try{await Promise.race([e,this.cancellation,t>0?this.timeout(t):new Promise(()=>{})])}finally{void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0)}}timeout(e){return new Promise((t,i)=>{this.deadline=setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){const e=this.input;this.input=null,e?.dispose()}cancel(){if(this.active){this.active=!1;for(const e of this.timers)clearTimeout(e);this.timers.clear(),void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0),this.resolveCancellation(),this.controller?.abort(),this.disposeInput()}}}async function ec({input:e,videoTrack:t,audioTrack:i}){const r=[t,i].filter(e=>null!==e),a=t||i,s=Boolean(a&&await a.isLive());let n=Number.NaN;return r.length>0&&(n=await e.getDurationFromMetadata(r,{skipLiveWait:!0}),null!==n||s||(n=await e.computeDuration(r,{skipLiveWait:!0}))),s?Number.POSITIVE_INFINITY:n??Number.NaN}class tc{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:a=.12,dropLateFrames:s=!1,poster:n="",preflightRange:o=!1}){this.canvas=e,this.ctx=t,this.events=i,this.timeupdateInterval=r,this.avSyncTolerance=a,this.dropLateFrames=s,this.poster=n,this.preflightRange=o,this.input=null,this.videoSink=null,this.videoIterator=null,this.nextFrame=null,this.rafId=0,this.asyncId=0,this.width=0,this.height=0,this.duration=Number.NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1}async preflight(e,t,i){return async function(e,t,i,r,a=()=>!0){if(r?.aborted||!a())return!1;if(!t||"string"!==typeof e||Yo(e))return!0;try{const t=await fetch(e,r?{method:"HEAD",signal:r}:{method:"HEAD"});if(r?.aborted||!a())return!1;const s=t.headers.get("accept-ranges");return!(!s||"none"===s)||(i.emit("error",new Event("RangeNotSupported")),!1)}catch(s){return!(r?.aborted||!a())&&(console.warn("Preflight check failed:",s),!0)}}(e,this.preflightRange,this.events,t,i)}drawPoster(){if(!this.poster||this.posterDrawn)return;const e=new Image;e.onload=()=>{this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,this.ctx.drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e.src=this.poster}async stopIterator(){await(this.videoIterator?.return()),this.videoIterator=null}clear(){this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height)}async load(e,t){++this.asyncId,await this.stopIterator(),this.clear(),this.posterDrawn=!1;const{input:i,videoTrack:r,duration:a}=e;if(this.input=i,this.duration=a,!r)return this.handleNoVideoTrack(),void t?.();if(null===r.codec||!(await r.canDecode()))return this.handleNoVideoTrack(),void t?.();const s=await r.canBeTransparent();this.videoSink=new Kn(r,{poolSize:2,fit:"contain",alpha:s}),this.width=r.displayWidth,this.height=r.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,t?.(),await this.resetIterator(0)}handleNoVideoTrack(){this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster()}async resetIterator(e){if(await this.stopIterator(),!this.videoSink)return;this.videoIterator=this.videoSink.canvases(e);const t=(await this.videoIterator.next()).value??null,i=(await this.videoIterator.next()).value??null;this.nextFrame=i,t?this.ctx.drawImage(t.canvas,0,0):this.drawPoster()}async updateNextFrame(e){if(this.videoIterator&&!this.isFetching){this.isFetching=!0;try{for(;;){const t=(await this.videoIterator.next()).value??null;if(!t||e!==this.asyncId)return;const i=this.audioClock.currentTime,r=this.dropLateFrames?Math.max(.06,this.avSyncTolerance/Math.max(1,this.playbackRate)):0;if(!(this.dropLateFrames&&t.timestampi)return void(this.nextFrame=null)}}}finally{this.isFetching=!1}}}render(){if(!this.audioClock)return;const e=this.audioClock.currentTime,t=Date.now();if(t-this.lastTimeUpdate>=this.timeupdateInterval&&(this.events.emit("timeupdate"),this.lastTimeUpdate=t),Number.isFinite(this.duration)&&e>=this.duration)return this.stop(),this.stalled=!1,this.events.emit("ended"),this.events.emit("pause"),void this.events.emit("canplay");this.nextFrame&&this.nextFrame.timestamp<=e?(this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.ctx.drawImage(this.nextFrame.canvas,0,0),this.nextFrame=null,this.updateNextFrame(this.asyncId),this.stalled&&(this.events.emit("canplay"),this.events.emit("playing"),this.stalled=!1)):this.nextFrame||(this.updateNextFrame(this.asyncId),!this.nextFrame&&Number.isFinite(this.duration)&&ethis.render())}start(e){this.audioClock=e,this.asyncId++,this.stalled=!1,this.updateNextFrame(this.asyncId),this.rafId=requestAnimationFrame(()=>this.render())}stop(){cancelAnimationFrame(this.rafId)}async seek(e){this.asyncId++,await this.resetIterator(e)}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){this.asyncId++,this.stop(),this.stopIterator(),this.posterDrawn=!1,this.videoSink=null,this.input=null}}class ic{constructor({canvas:e,ctx:t,events:i,option:r={}}){this.events=i,this.option=r,this.audio=new $o(i),this.video=new tc({canvas:e,ctx:t,events:i,timeupdateInterval:r.timeupdateInterval??250,avSyncTolerance:r.avSyncTolerance??.12,dropLateFrames:r.dropLateFrames??!1,poster:r.poster??"",preflightRange:r.preflightRange??!1}),this.paused=!0,this.ended=!1,this.readyState=0,this.networkState=0,this.error=null,this.seeking=!1,this.loadSeq=0,this.input=null,this.media=null,this.loadSession=null,this.destroyed=!1,i.addEventListener?.("ended",()=>{this.ended=!0,this.paused=!0})}async load(e){if(this.destroyed)return;const t=++this.loadSeq;if(this.loadSession?.cancel(),t!==this.loadSeq||this.destroyed)return;if(this.pause(),t!==this.loadSeq||this.destroyed)return;this.disposeInput();const i=new Zo;this.loadSession=i,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,i.defer(()=>this.events.emit("waiting")),i.defer(()=>this.events.emit("loadstart"));const r=Number.isFinite(this.option.loadTimeout)?this.option.loadTimeout:0;try{await i.wait(this.performLoad(e,t,i),r)}catch(a){if(t!==this.loadSeq)return;const e=++this.loadSeq;if(i.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.error={code:4,message:a.message},this.networkState=3,this.events.emit("error")}}async performLoad(e,t,i=this.loadSession){if(!(await this.video.preflight(e,i?.signal,()=>t===this.loadSeq))||t!==this.loadSeq)return;const r=Jo(e);if(!r)return this.video.handleNoVideoTrack(),void this.audio.handleNoAudioTrack();i.own(r);const a=await async function(e,t){const i=await e.getPrimaryVideoTrack(),r=i?await i.getPrimaryPairableAudioTrack():await e.getPrimaryAudioTrack(),a=await ec({input:e,videoTrack:i,audioTrack:r}),s=i||r,n=Yo(t);return{input:e,videoTrack:i,audioTrack:r,duration:a,isLive:!Number.isFinite(a)&&Boolean(s&&await s.isLive()),isHls:n,videoMode:n?"auto":"manual",audioMode:n?"auto":"manual"}}(r,e);if(t!==this.loadSeq)return;this.input=r,this.media=a;let s=!a.videoTrack,n=!a.audioTrack;const o=()=>{s&&n&&(this.readyState=1,this.events.emit("loadedmetadata"),this.events.emit("durationchange"),this.events.emit("progress"))};try{if(await Promise.all([this.video.load(a,()=>{t===this.loadSeq&&(s=!0,o())}),this.audio.load(a,()=>{t===this.loadSeq&&(n=!0,o())})]),t!==this.loadSeq)return;this.readyState=4,this.networkState=1,this.events.emit("loadeddata"),this.events.emit("canplay"),this.events.emit("canplaythrough"),this.events.emit("progress")}catch(c){if(t!==this.loadSeq)return;throw console.error("MediaBunny load error:",c),c}}createTimeout(e){return new Promise((t,i)=>{setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){this.loadSession?.disposeInput(),this.input=null,this.media=null}async replaceTracks({videoTrack:e,audioTrack:t,videoMode:i,audioMode:r}){if(!this.media)return;const a={...this.media,videoTrack:e,audioTrack:t,videoMode:i,audioMode:r},s=!this.paused,n=this.currentTime;this.pause(),this.ended=!1,this.seeking=!0,this.events.emit("seeking"),this.events.emit("waiting"),a.duration=await ec(a),this.media=a,await Promise.all([this.video.load(a),this.audio.load(a)]),await Promise.all([this.video.seek(n),this.audio.seek(n)]),this.readyState=4,this.networkState=1,this.seeking=!1,this.events.emit("loadedmetadata"),this.events.emit("durationchange"),this.events.emit("progress"),this.events.emit("loadeddata"),this.events.emit("canplay"),this.events.emit("canplaythrough"),this.events.emit("seeked"),s&&await this.play()}async selectHlsQuality(e){if(!this.media?.isHls||!this.input)return;const t=await this.input.getVideoTracks(),i="auto"===e?await this.input.getPrimaryVideoTrack():t.find(t=>t.id===e)??this.media.videoTrack;if(!i)return;let r=this.media.audioTrack,a=this.media.audioMode;r&&i.canBePairedWith(r)||(r=await i.getPrimaryPairableAudioTrack(),a="auto"),await this.replaceTracks({videoTrack:i,audioTrack:r,videoMode:"auto"===e?"auto":"manual",audioMode:a})}async selectHlsAudio(e){if(!this.media?.isHls||!this.input)return;const t=await this.input.getAudioTracks(),i="auto"===e?this.media.videoTrack?await this.media.videoTrack.getPrimaryPairableAudioTrack():await this.input.getPrimaryAudioTrack():t.find(t=>t.id===e)??this.media.audioTrack;if(!i)return;let r=this.media.videoTrack,a=this.media.videoMode;r&&i.canBePairedWith(r)||(r=await i.getPrimaryPairableVideoTrack(),a="auto"),await this.replaceTracks({videoTrack:r,audioTrack:i,videoMode:a,audioMode:"auto"===e?"auto":"manual"})}getHlsState(){return async function(e){if(!e?.isHls||!e.input)return null;const[t,i]=await Promise.all([e.input.getVideoTracks(),e.videoTrack?e.videoTrack.getPairableAudioTracks():[]]),[r,a]=await Promise.all([Promise.all(t.map(async(e,t)=>({id:e.id,track:e,index:t,name:await e.getName(),height:await e.getDisplayHeight(),bitrate:await Go(e)}))),Promise.all(i.map(async(e,t)=>{const i=await e.getName(),r=await e.getLanguageCode();return{id:e.id,track:e,index:t,name:i,lang:r,language:r,bitrate:await Go(e)}}))]);return{levels:r,audios:a,currentLevel:e.videoTrack?r.find(t=>t.id===e.videoTrack?.id)??null:null,currentAudio:e.audioTrack?a.find(t=>t.id===e.audioTrack?.id)??null:null,videoMode:e.videoMode??"auto",audioMode:e.audioMode??"auto"}}(this.media)}async play(){this.paused&&(this.ended&&(this.ended=!1,await this.seek(0)),this.paused=!1,await this.audio.play(),this.video.start(this.audio),this.events.emit("play"),this.events.emit("playing"))}pause(){this.paused||(this.paused=!0,this.audio.pause(),this.video.stop(),this.events.emit("pause"))}async seek(e){const t=!this.paused;this.ended=!1,this.seeking=!0,this.events.emit("seeking"),this.events.emit("waiting"),this.pause(),await Promise.all([this.audio.seek(e),this.video.seek(e)]),this.seeking=!1,this.events.emit("seeked"),t&&!this.ended&&await this.play()}setVolume(e,t){this.audio.setVolume(e,t)}setPlaybackRate(e){this.audio.setPlaybackRate(e),this.video.setPlaybackRate(e)}destroy(){this.destroyed||(this.destroyed=!0,this.loadSeq++,this.loadSession?.cancel(),this.pause(),this.disposeInput(),this.audio.destroy(),this.video.destroy())}get currentTime(){return this.audio.currentTime}get duration(){return this.media?.duration??this.audio.duration??this.video.duration}get videoWidth(){return this.video.width}get videoHeight(){return this.video.height}}const rc=new WeakMap;function ac(e){let t=rc.get(e);return t||(t={closed:!1,frames:new Set},rc.set(e,t)),t}class sc{constructor({art:e,canvas:t,ctx:i,option:r}){this.art=e,this.canvas=t,this.option=r,this.events=new s,this.engine=new ic({canvas:t,ctx:i,events:this.events,option:r}),this._src=null,this._volume=r.volume??.7,this._muted=!!r.muted,this._playbackRate=1,this.engine.setVolume(this._volume,this._muted),this.setupEventForwarding(),r.source?this.src=r.source:e.option?.url&&(this.src=e.option.url)}setupEventForwarding(){const{events:e}=this.art.constructor.config;e.forEach(e=>{this.events.addEventListener(e,e=>{this.art.emit(`video:${e.type}`,e)})})}addEventListener(e,t){this.events.addEventListener(e,t)}removeEventListener(e,t){this.events.removeEventListener(e,t)}get src(){return this._src}set src(e){this._src=e,e&&this.engine.load(e)}get currentSrc(){return this._src}get currentTime(){return this.engine.currentTime}set currentTime(e){this.engine.seek(Number(e)||0)}get duration(){return this.engine.duration}get buffered(){return this.createTimeRanges(0,this.engine.duration)}get played(){return this.createTimeRanges(0,this.engine.currentTime)}get seekable(){return this.createTimeRanges(0,this.engine.duration)}createTimeRanges(e,t){return function(e,t,i){return!e||Number.isNaN(e)||i<=0?{length:0,start:()=>0,end:()=>0}:{length:1,start:()=>t,end:()=>i}}(this.engine.duration,e,t)}get paused(){return this.engine.paused}get playing(){return!this.engine.paused&&!this.engine.ended}get ended(){return this.engine.ended}get seeking(){return this.engine.seeking}get readyState(){return this.engine.readyState}get networkState(){return this.engine.networkState}get error(){return this.engine.error}get playbackRate(){return this._playbackRate}set playbackRate(e){const t=Number(e);Number.isNaN(t)||t<=0||(this._playbackRate=t,this.engine.setPlaybackRate(t),this.events.emit("ratechange"))}get volume(){return this._volume}set volume(e){var t;this._volume=(t=e,Math.max(0,Math.min(1,Number(t)||0))),this._muted=!1,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}get muted(){return this._muted}set muted(e){this._muted=!!e,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}play(){return this.engine.play()}pause(){this.engine.pause()}load(){this._src&&this.engine.load(this._src)}getM3u8State(){return this.engine.getHlsState()}switchM3u8Quality(e){return this.engine.selectHlsQuality(e)}switchM3u8Audio(e){return this.engine.selectHlsAudio(e)}get videoWidth(){return this.engine.videoWidth}get videoHeight(){return this.engine.videoHeight}get poster(){return this.option.poster||""}set poster(e){this.option.poster=e}get autoplay(){return this.option.autoplay||!1}set autoplay(e){}get loop(){return this.option.loop||!1}set loop(e){}get controls(){return!1}set controls(e){}get playsInline(){return!0}set playsInline(e){}get crossOrigin(){return this.option.crossOrigin||""}set crossOrigin(e){}get preload(){return"auto"}set preload(e){}get defaultMuted(){return!1}set defaultMuted(e){}get defaultPlaybackRate(){return 1}set defaultPlaybackRate(e){}canPlayType(e){return"maybe"}getBoundingClientRect(){return this.canvas.getBoundingClientRect()}requestVideoFrameCallback(e){return function(e,t){const i=ac(e);if(i.closed)return 0;const r=requestAnimationFrame(a=>{i.frames.delete(r),i.closed||t(a,{presentationTime:e.engine.currentTime,expectedDisplayTime:a+16.6,width:e.engine.videoWidth,height:e.engine.videoHeight,mediaTime:e.engine.currentTime,presentedFrames:0,processingDuration:0,captureTime:a,receiveTime:a,rtpTimestamp:0})});return i.frames.add(r),r}(this,e)}cancelVideoFrameCallback(e){!function(e,t){ac(e).frames.delete(t),cancelAnimationFrame(t)}(this,e)}setAttribute(e,t){"src"===e?this.src=t:"autoplay"===e?this.autoplay=t:"loop"===e?this.loop=t:"muted"===e?this.muted=!0:Reflect.apply(this.canvas.setAttribute,this.canvas,[e,t])}destroy(){if(function(e){const t=ac(e);if(t.closed)return!1;t.closed=!0;for(const i of t.frames)cancelAnimationFrame(i);return t.frames.clear(),!0}(this))try{this.engine.destroy()}finally{this.events.destroy()}}}return function(e={}){return t=>{const{constructor:i}=t,{createElement:r}=i.utils,s=r("canvas"),n=s.getContext("2d"),o=new sc({art:t,canvas:s,ctx:n,option:e});t.mediabunny=o;const c={};for(const e in s)"function"===typeof s[e]&&(c[e]=s[e].bind(s));const l=new Set([...Object.getOwnPropertyNames(o),...Object.getOwnPropertyNames(Object.getPrototypeOf(o))]);for(const e of l)"constructor"!==e&&(e in s||Object.defineProperty(s,e,{get(){const t=o[e];return"function"===typeof t?t.bind(o):t},set(t){o[e]=t},configurable:!0,enumerable:!0}));for(const e in c)s[e]=(...t)=>c[e](...t);function u(){const e=t.template?.$player;e&&!t.option.autoSize&&Object.assign(s.style,{width:"100%",height:"100%",objectFit:"contain"})}return t.on("resize",u),t.on("video:loadedmetadata",u),function({art:e,shim:t,option:i}){if(i.m3u8)return e.on("video:loadedmetadata",d),e.on("restart",d),{update:d};function r(t){e.controls.cache.has(t)&&e.controls.remove(t)}function s(t){e.setting.find(t)&&e.setting.remove(t)}function n(){r("mediabunny-quality"),s("mediabunny-quality")}function o(){r("mediabunny-audio"),s("mediabunny-audio")}function c(e={}){return e.control||e.setting}async function l(r){const s=i.m3u8?.quality||{};if(!c(s)||!r?.levels.length)return void n();const o=s.auto||"Auto",l=s.title||"Quality",u=s.getName||(e=>e.name||`${e.height}P`),h=r.currentLevel?u(r.currentLevel):o,f=a(r.levels.map(e=>({html:u(e),value:e.id,default:r.currentLevel?.id===e.id})),"html").sort((e,t)=>{const i=r.levels.find(t=>t.id===e.value),a=r.levels.find(e=>e.id===t.value);return(a?.height||0)-(i?.height||0)});f.push({html:o,value:"auto",default:!r.currentLevel});const m=async i=>(await t.switchM3u8Quality(i.value),e.notice.show=`${l}: ${i.html}`,await d(),i.html);s.control&&e.controls.update({name:"mediabunny-quality",position:"right",html:h,style:{padding:"0 10px"},selector:f,onSelect:m}),s.setting&&e.setting.update({name:"mediabunny-quality",tooltip:h,html:l,icon:'',width:200,selector:f,onSelect:m})}async function u(r){const s=i.m3u8?.audio||{};if(!c(s)||!r?.audios.length||r.audios.length<2)return void o();const n=s.auto||"Auto",l=s.title||"Audio",u=s.getName||(e=>e.name||e.lang||e.language),h=r.currentAudio?u(r.currentAudio):n,f=a(r.audios.map(e=>({html:u(e),value:e.id,default:r.currentAudio?.id===e.id})),"html");f.push({html:n,value:"auto",default:!r.currentAudio});const m=async i=>(await t.switchM3u8Audio(i.value),e.notice.show=`${l}: ${i.html}`,await d(),i.html);s.control&&e.controls.update({name:"mediabunny-audio",position:"right",html:h,style:{padding:"0 10px"},selector:f,onSelect:m}),s.setting&&e.setting.update({name:"mediabunny-audio",tooltip:h,html:l,icon:'',width:200,selector:f,onSelect:m})}async function d(){const e=await t.getM3u8State();if(!e)return n(),void o();await Promise.all([l(e),u(e)])}}({art:t,shim:o,option:e}),t.on("destroy",()=>{delete t.mediabunny,o.destroy()}),s}}}); diff --git a/docs/compiled/artplayer-proxy-mediabunny.legacy.js b/docs/compiled/artplayer-proxy-mediabunny.legacy.js index e376a5616..4553fb5d8 100644 --- a/docs/compiled/artplayer-proxy-mediabunny.legacy.js +++ b/docs/compiled/artplayer-proxy-mediabunny.legacy.js @@ -4,4 +4,4 @@ * (c) 2017-2026 Harvey Zhao * Released under the MIT License. */ -!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerProxyMediabunny=t(),define(function(){return e.artplayerProxyMediabunny})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerProxyMediabunny=t()}(this,function(){"use strict";var e=Object.defineProperty,t=Object.defineProperties,i=Object.getOwnPropertyDescriptors,r=Object.getOwnPropertySymbols,n=Object.prototype.hasOwnProperty,s=Object.prototype.propertyIsEnumerable,a=(e,t)=>(t=Symbol[e])?t:Symbol.for("Symbol."+e),o=Math.pow,l=(t,i,r)=>i in t?e(t,i,{enumerable:!0,configurable:!0,writable:!0,value:r}):t[i]=r,c=(e,t)=>{for(var i in t||(t={}))n.call(t,i)&&l(e,i,t[i]);if(r)for(var i of r(t))s.call(t,i)&&l(e,i,t[i]);return e},u=(e,r)=>t(e,i(r)),d=(e,t,i)=>new Promise((r,n)=>{var s=e=>{try{o(i.next(e))}catch(t){n(t)}},a=e=>{try{o(i.throw(e))}catch(t){n(t)}},o=e=>e.done?r(e.value):Promise.resolve(e.value).then(s,a);o((i=i.apply(e,t)).next())}),h=function(e,t){this[0]=e,this[1]=t},f=(e,t,i)=>{var r,n=(e,t,r,s)=>{try{var a=i[e](t),o=(t=a.value)instanceof h,l=a.done;Promise.resolve(o?t[0]:t).then(i=>o?n("return"===e?e:"next",t[1]?{done:i.done,value:i.value}:i,r,s):r({value:i,done:l})).catch(e=>n("throw",e,r,s))}catch(c){s(c)}},s=(e,t,i,s)=>o[e]=a=>(t=new Promise((t,i,s)=>(s=()=>n(e,a,t,i),r?r.then(s):s())),s=()=>r===i&&(r=0),r=i=t.then(s,s),t),o={};return i=i.apply(e,t),o[a("asyncIterator")]=()=>o,s("next"),s("throw"),s("return"),o},m=e=>{var t,i=e[a("asyncIterator")],r=!1,n={};return null==i?(i=e[a("iterator")](),t=e=>n[e]=t=>i[e](t)):(i=i.call(e),t=e=>n[e]=t=>{if(r){if(r=!1,"throw"===e)throw t;return t}return r=!0,{done:!1,value:new h(new Promise(r=>{var n=i[e](t);n instanceof Object||(e=>{throw TypeError(e)})("Object expected"),r(n)}),1)}}),n[a("iterator")]=()=>n,t("next"),"throw"in i?t("throw"):n.throw=e=>{throw e},"return"in i&&t("return"),n},p=(e,t,i)=>(t=e[a("asyncIterator")])?t.call(e):(e=e[a("iterator")](),t={},(i=(i,r)=>(r=e[i])&&(t[i]=t=>new Promise((i,n,s)=>(t=r.call(e,t),s=t.done,Promise.resolve(t.value).then(e=>i({value:e,done:s}),n)))))("next"),i("return"),t);function g(e,t){const i=new Map;return e.filter(e=>{const r=e[t];return void 0===r||!i.has(r)&&i.set(r,1)})}class k{constructor(){this.listeners=new Map}addEventListener(e,t){this.listeners.has(e)||this.listeners.set(e,[]),this.listeners.get(e).push(t)}removeEventListener(e,t){const i=this.listeners.get(e);if(!i)return;const r=i.indexOf(t);r>=0&&i.splice(r,1)}emit(e,t){const i=new Event(e);i.detail=t;const r=this.listeners.get(e);r&&r.forEach(e=>e(i))}}function y(e){if(!e)throw new Error("Assertion failed.")}const b=e=>{const t=(e%360+360)%360;if(0===t||90===t||180===t||270===t)return t;throw new Error(`Invalid rotation ${e}.`)},T=e=>e&&e[e.length-1],v=e=>{let t=0;for(;0===e.readBits(1)&&t<32;)t++;if(t>=32)throw new Error("Invalid exponential-Golomb code.");return(1<{const i=t+1,r=Math.floor(Math.log2(i));e.writeBits(r,0),e.writeBits(1,1),e.writeBits(r,i-o(2,r))},w=e=>{const t=v(e);return 0===(1&t)?-(t>>1):t+1>>1},P=e=>e.constructor===Uint8Array?e:ArrayBuffer.isView(e)?new Uint8Array(e.buffer,e.byteOffset,e.byteLength):new Uint8Array(e),I=e=>e.constructor===DataView?e:ArrayBuffer.isView(e)?new DataView(e.buffer,e.byteOffset,e.byteLength):new DataView(e),x=new TextDecoder,C=e=>Object.fromEntries(Object.entries(e).map(([e,t])=>[t,e])),B={bt709:1,bt470bg:5,smpte170m:6,bt2020:9,smpte432:12},E=C(B),_={bt709:1,smpte170m:6,linear:8,"iec61966-2-1":13,pq:16,hlg:18},R=C(_),F={rgb:0,bt709:1,bt470bg:5,smpte170m:6,"bt2020-ncl":9},A=C(F),D=e=>!!e&&!!e.primaries&&!!e.transfer&&!!e.matrix&&void 0!==e.fullRange,M={primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0},N=e=>e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e);class O{constructor(){this.currentPromise=Promise.resolve(),this.pending=0}acquire(){return d(this,null,function*(){let e;const t=new Promise(t=>{let i=!1;e=()=>{i||(t(),this.pending--,i=!0)}}),i=this.currentPromise;return this.currentPromise=t,this.pending++,yield i,e})}}const L=/^[0-9a-fA-F]+$/,z=e=>[...e].map(e=>e.toString(16).padStart(2,"0")).join(""),U=e=>(e=(e=(e=(e=(e=e>>1&1431655765|(1431655765&e)<<1)>>2&858993459|(858993459&e)<<2)>>4&252645135|(252645135&e)<<4)>>8&16711935|(16711935&e)<<8)>>16&65535|(65535&e)<<16)>>>0,q=(e,t,i)=>{let r=0,n=e.length-1,s=-1;for(;r<=n;){const a=r+n>>1,o=i(e[a]);o===t?(s=a,n=a-1):o{let r=0,n=e.length-1,s=-1;for(;r<=n;){const a=r+(n-r+1)/2|0;i(e[a])<=t?(s=a,r=a+1):n=a-1}return s},H=(e,t,i)=>{const r=W(e,i(t),i);e.splice(r+1,0,t)},V=()=>{let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}},j=(e,t)=>{const i=e.indexOf(t);-1!==i&&e.splice(i,1)},K=(e,t)=>{for(let i=e.length-1;i>=0;i--)if(t(e[i]))return e[i]},X=(e,t)=>{for(let i=e.length-1;i>=0;i--)if(t(e[i]))return i;return-1},$=e=>{throw new Error(`Unexpected value: ${e}`)},G=(e,t,i)=>{const r=e.getUint8(t),n=e.getUint8(t+1),s=e.getUint8(t+2);return i?r|n<<8|s<<16:r<<16|n<<8|s},Q=(e,t,i,r)=>{i>>>=0,i&=16777215,e.setUint8(t,i>>>16&255),e.setUint8(t+1,i>>>8&255),e.setUint8(t+2,255&i)},Y=(e,t)=>({next(){return d(this,null,function*(){const i=yield e.next();return i.done?{value:void 0,done:!0}:{value:t(i.value),done:!1}})},return:()=>e.return(),throw:t=>e.throw(t),[Symbol.asyncIterator](){return this}}),J=(e,t,i)=>Math.max(t,Math.min(i,e)),Z="und",ee=e=>{const t=Math.round(e);return Math.abs(e/t-1)<10*Number.EPSILON?t:e},te=(e,t)=>Math.round(e/t)*t,ie=(e,t)=>Math.round(e*t)/t,re=(e,t)=>Math.floor(e/t)*t,ne=e=>{let t=0;for(;0!==e;)e&=e-1,t++;return t},se=/^[a-z]{3}$/,ae=e=>se.test(e),oe=1e6*(1+Number.EPSILON),le=(e,t)=>{const i=c(c({},e),t);if(e.headers||t.headers){const r=e.headers?ce(e.headers):{},n=t.headers?ce(t.headers):{},s=c({},r);Object.entries(n).forEach(([e,t])=>{const i=Object.keys(s).find(t=>t.toLowerCase()===e.toLowerCase());i&&delete s[i],s[e]=t}),i.headers=s}return i},ce=e=>{if(e instanceof Headers){const t={};return e.forEach((e,i)=>{t[i]=e}),t}if(Array.isArray(e)){const t={};return e.forEach(([e,i])=>{t[e]=i}),t}return e},ue=(e,t,i,r,n)=>d(null,null,function*(){let s=0;for(;;)try{return yield e(t,i)}catch(a){if(n())throw a;s++;const e=r(s,a,t);if(null===e)throw a;if(Me._error("Retrying failed fetch. Error:",a),!Number.isFinite(e)||e<0)throw new TypeError("Retry delay must be a non-negative finite number.");if(e>0&&(yield Re(1e3*e)),n())throw a}});class de{constructor(){this.currentPromise=Promise.resolve()}call(e){return this.currentPromise=this.currentPromise.then(e)}}let he=null;const fe=()=>{var e;return null!==he?he:he=!("undefined"===typeof navigator||!((null==(e=navigator.vendor)?void 0:e.match(/apple/i))||/AppleWebKit/.test(navigator.userAgent)&&!/Chrome/.test(navigator.userAgent)||/\b(iPad|iPhone|iPod)\b/.test(navigator.userAgent)))};let me=null;const pe=()=>{var e;return null!==me?me:me="undefined"!==typeof navigator&&(null==(e=navigator.userAgent)?void 0:e.includes("Firefox"))};let ge=null;const ke=()=>{var e;return null!==ge?ge:ge=!("undefined"===typeof navigator||!(null==(e=navigator.vendor)?void 0:e.includes("Google Inc"))&&!/Chrome/.test(navigator.userAgent))},ye=e=>"undefined"===typeof globalThis.isSecureContext||globalThis.isSecureContext?`${e} is not available in this environment.`:`${e} is not available in this environment; this may be because this page is running in an insecure context. Try serving your page over HTTPS or use localhost.`,be=d(null,null,function*(){}).constructor,Te=e=>e instanceof be||e instanceof Promise||"function"===typeof(null==e?void 0:e.then),ve=(e,t)=>-1!==e?e:t,Se=(e,t,i,r)=>e<=r&&i<=t,we=e=>{const t=atob(e),i=new Uint8Array(t.length);for(let r=0;r{null!=Symbol.dispose||(Symbol.dispose=Symbol("Symbol.dispose"))},Ie=e=>"number"===typeof e&&!Number.isNaN(e),xe=(e,t)=>{if(t.includes("://"))return t;if(e.includes("://")){const t=e.indexOf("?");-1!==t&&(e=e.slice(0,t))}let i;if(t.startsWith("/")){const r=e.indexOf("://");if(-1===r)i=t;else{const n=e.indexOf("/",r+3);i=-1===n?e+t:e.slice(0,n)+t}}else{const r=e.lastIndexOf("/");i=-1===r?t:e.slice(0,r+1)+t}let r="";const n=i.indexOf("://");if(-1!==n){const e=i.indexOf("/",n+3);-1!==e&&(r=i.slice(0,e),i=i.slice(e))}const s=i.split("/"),a=[];for(const o of s)".."===o?a.pop():"."!==o&&a.push(o);return r+a.join("/")},Ce=(e,t)=>{let i=0;for(let r=0;r{let i=-1,r=1/0;for(let n=0;n{y(Number.isInteger(e.num)),y(Number.isInteger(e.den)),y(0!==e.den);let t=Math.abs(e.num),i=Math.abs(e.den);for(;0!==i;){const e=t%i;t=i,i=e}const r=t||1;return{num:e.num/r,den:e.den/r}},_e=(e,t)=>{if("object"!==typeof e||!e)throw new TypeError(`${t} must be an object.`);if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(`${t}.left must be a non-negative integer.`);if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(`${t}.top must be a non-negative integer.`);if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(`${t}.width must be a non-negative integer.`);if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(`${t}.height must be a non-negative integer.`)},Re=e=>new Promise(t=>setTimeout(t,e));class Fe{constructor(){this._listeners=new Map}on(e,t,i){var r;this._listeners.has(e)||this._listeners.set(e,new Set);const n={fn:t,once:null!=(r=null==i?void 0:i.once)&&r};return this._listeners.get(e).add(n),()=>{var t;null==(t=this._listeners.get(e))||t.delete(n)}}_emit(...e){const[t,i]=e,r=this._listeners.get(t);if(r)for(const s of r){try{s.fn(i)}catch(n){console.error(n)}s.once&&r.delete(s)}}}var Ae,De;(De=Ae||(Ae={}))[De.Silent=0]="Silent",De[De.Errors=1]="Errors",De[De.Warnings=2]="Warnings",De[De.Info=3]="Info";class Me{constructor(){}static get level(){return Me._level}static set level(e){if(e!==Ae.Silent&&e!==Ae.Errors&&e!==Ae.Warnings&&e!==Ae.Info)throw new TypeError("Invalid log level. Use one of the values of the LogLevel enum.");Me._level=e}static get _emitter(){var e;return null!=(e=Me._emitterInstance)?e:Me._emitterInstance=new Fe}static on(e,t,i){return Me._emitter.on(e,t,i)}static _error(...e){Me._emitter._emit("error",e),Me._level>=Ae.Errors&&console.error(...e)}static _warn(...e){Me._emitter._emit("warn",e),Me._level>=Ae.Warnings&&console.warn(...e)}static _info(...e){Me._emitter._emit("info",e),Me._level>=Ae.Info&&console.info(...e)}}Me._level=Ae.Info,Me._emitterInstance=null;class Ne{constructor(e,t){if(this.data=e,this.mimeType=t,!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("string"!==typeof t)throw new TypeError("mimeType must be a string.")}}class Oe{constructor(e,t,i,r){if(this.data=e,this.mimeType=t,this.name=i,this.description=r,!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if(void 0!==t&&"string"!==typeof t)throw new TypeError("mimeType, when provided, must be a string.");if(void 0!==i&&"string"!==typeof i)throw new TypeError("name, when provided, must be a string.");if(void 0!==r&&"string"!==typeof r)throw new TypeError("description, when provided, must be a string.")}}const Le={default:!0,primary:!0,forced:!1,original:!1,commentary:!1,hearingImpaired:!1,visuallyImpaired:!1};class ze{constructor(e){this.bytes=e,this.pos=0}seekToByte(e){this.pos=8*e}readBit(){var e;const t=Math.floor(this.pos/8),i=null!=(e=this.bytes[t])?e:0,r=7-(7&this.pos),n=(i&1<>r;return this.pos++,n}readBits(e){if(1===e)return this.readBit();let t=0;for(let i=0;i>i-r-1<0&&this.writeBits(r,t.readBits(r))}readAlignedByte(){var e;if(this.pos%8!==0)throw new Error("Bitstream is not byte-aligned.");const t=this.pos/8,i=null!=(e=this.bytes[t])?e:0;return this.pos+=8,i}skipBits(e){this.pos+=e}getBitsLeft(){return 8*this.bytes.length-this.pos}clone(){const e=new ze(this.bytes);return e.pos=this.pos,e}}const Ue=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350],qe=[-1,1,2,3,4,5,6,8],We=e=>{if(!e||e.byteLength<2)throw new TypeError("AAC description must be at least 2 bytes long.");const t=new ze(e),i=He(t),{frequencyIndex:r,sampleRate:n}=Ve(t),s=t.readBits(4);let a=null;s>=1&&s<=7&&(a=qe[s]);let o=i,l=!1,c=n;if(5===i||29===i)l=29===i,c=Ve(t).sampleRate,o=He(t),22===o&&t.skipBits(4);else for(;t.getBitsLeft()>15;){const e=t.pos;if(695===t.readBits(11)){5===He(t)&&t.readBits(1)&&(c=Ve(t).sampleRate,t.getBitsLeft()>11&&1352===t.readBits(11)&&(l=!!t.readBits(1)));break}t.pos=e+1}return null!==a&&a>1&&(l=!1),{objectType:i,coreObjectType:o,frequencyIndex:r,channelConfiguration:s,outputSampleRate:c,outputNumberOfChannels:l&&1===a?2:a}},He=e=>{const t=e.readBits(5);return 31===t?32+e.readBits(6):t},Ve=e=>{const t=e.readBits(4);return 15===t?{frequencyIndex:t,sampleRate:e.readBits(24)}:{frequencyIndex:t,sampleRate:t=e.length-2)break;t=r;let n=0;t+3i&&(yield{offset:i,length:t-i}),i=t+n,t=i):t++}-1!==i&&i{if(t.description){const i=3&P(t.description)[4];return Je(e,i+1)}return Ye(e)},et=e=>31&e,tt=e=>{const t=[],i=e.length;for(let r=0;r{const t=e.reduce((e,t)=>e+it.byteLength+t.byteLength,0),i=new Uint8Array(t);let r=0;for(const n of e)i.set(it,r),r+=it.byteLength,i.set(n,r),r+=n.byteLength;return i},nt=(e,t)=>{const i=e.reduce((e,i)=>e+t+i.byteLength,0),r=new Uint8Array(i);let n=0;for(const s of e){const e=new DataView(r.buffer,r.byteOffset,r.byteLength);switch(t){case 1:e.setUint8(n,s.byteLength);break;case 2:e.setUint16(n,s.byteLength,!1);break;case 3:Q(e,n,s.byteLength);break;case 4:e.setUint32(n,s.byteLength,!1)}n+=t,r.set(s,n),n+=s.byteLength}return r},st=e=>{try{const t=[],i=[],r=[];for(const o of Ye(e)){const n=e.subarray(o.offset,o.offset+o.length),s=et(n[0]);s===Xe.SPS?t.push(n):s===Xe.PPS?i.push(n):s===Xe.SPS_EXT&&r.push(n)}if(0===t.length)return null;if(0===i.length)return null;const n=t[0],s=ct(n);y(null!==s);const a=100===s.profileIdc||110===s.profileIdc||122===s.profileIdc||144===s.profileIdc;return{configurationVersion:1,avcProfileIndication:s.profileIdc,profileCompatibility:s.constraintFlags,avcLevelIndication:s.levelIdc,lengthSizeMinusOne:3,sequenceParameterSets:t,pictureParameterSets:i,chromaFormat:a?s.chromaFormatIdc:null,bitDepthLumaMinus8:a?s.bitDepthLumaMinus8:null,bitDepthChromaMinus8:a?s.bitDepthChromaMinus8:null,sequenceParameterSetExt:a?r:null}}catch(t){return Me._error("Error building AVC Decoder Configuration Record:",t),null}},at=e=>{const t=[];t.push(e.configurationVersion),t.push(e.avcProfileIndication),t.push(e.profileCompatibility),t.push(e.avcLevelIndication),t.push(252|3&e.lengthSizeMinusOne),t.push(224|31&e.sequenceParameterSets.length);for(const i of e.sequenceParameterSets){const e=i.byteLength;t.push(e>>8),t.push(255&e);for(let r=0;r>8),t.push(255&e);for(let r=0;r>8),t.push(255&e);for(let r=0;r{try{const t=I(e);let i=0;const r=t.getUint8(i++),n=t.getUint8(i++),s=t.getUint8(i++),a=t.getUint8(i++),o=3&t.getUint8(i++),l=31&t.getUint8(i++),c=[];for(let f=0;f{var t;try{const i=tt(e),r=new ze(i);r.skipBits(1),r.skipBits(2);if(7!==r.readBits(5))return null;const n=r.readAlignedByte(),s=r.readAlignedByte(),a=r.readAlignedByte();v(r);let o=1,l=0,c=0,u=0;if(100===n||110===n||122===n||244===n||44===n||83===n||86===n||118===n||128===n){o=v(r),3===o&&(u=r.readBits(1)),l=v(r),c=v(r),r.skipBits(1);if(r.readBits(1))for(let e=0;e<(3!==o?8:12);e++){if(r.readBits(1)){const t=e<6?16:64;let i=8,n=8;for(let e=0;ee.level>=a))?t:T(ai),n=Math.min(Math.floor(r.maxDpbMbs/(e*i)),16);B=n,E=n}else B=0,E=0}return y(null!==E),{emulationUnpreventedBytes:i,profileIdc:n,constraintFlags:s,levelIdc:a,frameMbsOnlyFlag:b,chromaFormatIdc:o,bitDepthLumaMinus8:l,bitDepthChromaMinus8:c,codedWidth:m,codedHeight:p,displayWidth:g,displayHeight:k,pixelAspectRatio:C,colourPrimaries:S,matrixCoefficients:I,transferCharacteristics:P,fullRangeFlag:x,numReorderFrames:B,maxDecFrameBuffering:E,vuiParametersFlagBitOffset:F,bitstreamRestrictionFlagBitOffset:_,bitstreamRestrictionFlag:R}}catch(i){return Me._error("Error parsing AVC SPS:",i),null}},ut=e=>{const t=v(e);e.skipBits(4),e.skipBits(4);for(let i=0;i<=t;i++)v(e),v(e),e.skipBits(1);e.skipBits(5),e.skipBits(5),e.skipBits(5),e.skipBits(5)},dt=e=>{y(1!==e.bitstreamRestrictionFlag);const t=new Uint8Array(e.emulationUnpreventedBytes.byteLength+64),i=new ze(e.emulationUnpreventedBytes),r=new ze(t);null===e.bitstreamRestrictionFlag?(r.copyBits(e.vuiParametersFlagBitOffset,i),r.writeBits(1,1),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0)):(y(null!==e.bitstreamRestrictionFlagBitOffset),r.copyBits(e.bitstreamRestrictionFlagBitOffset,i)),r.writeBits(1,1),r.writeBits(1,1),S(r,2),S(r,1),S(r,16),S(r,16),S(r,e.numReorderFrames),S(r,e.maxDecFrameBuffering),r.writeBits(1,1),r.writeBits((8-r.pos%8)%8,0);const n=r.pos/8;return y(Number.isInteger(n)),(e=>{const t=[];let i=0;for(const r of e)2===i&&r<=3&&(t.push(3),i=0),t.push(r),i=0===r?i+1:0;return new Uint8Array(t)})(t.subarray(0,n))},ht=(e,t)=>{if(t.description){const i=3&P(t.description)[21];return Je(e,i+1)}return Ye(e)},ft=e=>e>>1&63,mt=e=>{try{const t=new ze(tt(e));t.skipBits(16),t.readBits(4);const i=t.readBits(3),r=t.readBits(1),{general_profile_space:n,general_tier_flag:s,general_profile_idc:a,general_profile_compatibility_flags:o,general_constraint_indicator_flags:l,general_level_idc:c}=gt(t,i);v(t);const u=v(t);let d=0;3===u&&(d=t.readBits(1));const h=v(t),f=v(t);let m=h,p=f;if(t.readBits(1)){const e=v(t),i=v(t),r=v(t),n=v(t);let s=1,a=1;const o=0===d?u:0;1===o?(s=2,a=2):2===o&&(s=2,a=1),m-=(e+i)*s,p-=(r+n)*a}const g=v(t),k=v(t);v(t);const y=t.readBits(1);let b=0;for(let e=y?0:i;e<=i;e++)v(t),b=v(t),v(t);v(t),v(t),v(t),v(t),v(t),v(t),t.readBits(1)&&t.readBits(1)&&kt(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),v(t),v(t),t.skipBits(1));const T=v(t);if(yt(t,T),t.readBits(1)){const e=v(t);for(let i=0;i{try{const t=[],i=[],r=[],n=[];for(const l of Ye(e)){const s=e.subarray(l.offset,l.offset+l.length),a=ft(s[0]);a===Ge.VPS_NUT?t.push(s):a===Ge.SPS_NUT?i.push(s):a===Ge.PPS_NUT?r.push(s):a!==Ge.PREFIX_SEI_NUT&&a!==Ge.SUFFIX_SEI_NUT||n.push(s)}if(0===i.length||0===r.length)return null;const s=mt(i[0]);if(!s)return null;let a=0;if(r.length>0){const e=r[0],t=new ze(tt(e));t.skipBits(16),v(t),v(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),v(t),v(t),w(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&v(t),w(t),w(t),t.skipBits(1),t.skipBits(1),t.skipBits(1),t.skipBits(1);const i=t.readBits(1),n=t.readBits(1);a=i||n?i&&!n?2:!i&&n?3:0:0}const o=[...t.length?[{arrayCompleteness:1,nalUnitType:Ge.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:Ge.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:Ge.PPS_NUT,nalUnits:r}]:[],...n.length?[{arrayCompleteness:1,nalUnitType:ft(n[0][0]),nalUnits:n}]:[]];return{configurationVersion:1,generalProfileSpace:s.generalProfileSpace,generalTierFlag:s.generalTierFlag,generalProfileIdc:s.generalProfileIdc,generalProfileCompatibilityFlags:s.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:s.generalConstraintIndicatorFlags,generalLevelIdc:s.generalLevelIdc,minSpatialSegmentationIdc:s.minSpatialSegmentationIdc,parallelismType:a,chromaFormatIdc:s.chromaFormatIdc,bitDepthLumaMinus8:s.bitDepthLumaMinus8,bitDepthChromaMinus8:s.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:s.spsMaxSubLayersMinus1+1,temporalIdNested:s.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:o}}catch(t){return Me._error("Error building HEVC Decoder Configuration Record:",t),null}},gt=(e,t)=>{const i=e.readBits(2),r=e.readBits(1),n=e.readBits(5);let s=0;for(let u=0;u<32;u++)s=s<<1|e.readBits(1);const a=new Uint8Array(6);for(let u=0;u<6;u++)a[u]=e.readBits(8);const o=e.readBits(8),l=[],c=[];for(let u=0;u0)for(let u=t;u<8;u++)e.skipBits(2);for(let u=0;u{for(let t=0;t<4;t++)for(let i=0;i<(3===t?2:6);i++){if(e.readBits(1)){const i=Math.min(64,1<<4+(t<<1));t>1&&w(e);for(let t=0;t{const i=[];for(let r=0;r{var n;let s=0,a=0,o=0;if(0!==t&&(a=e.readBits(1)),a){if(t===i){o=t-(v(e)+1)}else o=t-1;e.readBits(1),v(e);const a=null!=(n=r[o])?n:0;for(let t=0;t<=a;t++){e.readBits(1)||e.readBits(1)}s=r[o]}else{const t=v(e),i=v(e);for(let r=0;r{let i=2,r=2,n=2,s=0,a=0,o={num:1,den:1};if(e.readBits(1)){const t=e.readBits(8);if(255===t)o={num:e.readBits(16),den:e.readBits(16)};else{const e=lt[t];e&&(o=e)}}return e.readBits(1)&&e.readBits(1),e.readBits(1)&&(e.readBits(3),s=e.readBits(1),e.readBits(1)&&(i=e.readBits(8),r=e.readBits(8),n=e.readBits(8))),e.readBits(1)&&(v(e),v(e)),e.readBits(1),e.readBits(1),e.readBits(1),e.readBits(1)&&(v(e),v(e),v(e),v(e)),e.readBits(1)&&(e.readBits(32),e.readBits(32),e.readBits(1)&&v(e),e.readBits(1)&&vt(e,!0,t)),e.readBits(1)&&(e.readBits(1),e.readBits(1),e.readBits(1),a=v(e),v(e),v(e),v(e),v(e)),{pixelAspectRatio:o,colourPrimaries:i,transferCharacteristics:r,matrixCoefficients:n,fullRangeFlag:s,minSpatialSegmentationIdc:a}},vt=(e,t,i)=>{let r=!1,n=!1,s=!1;r=1===e.readBits(1),n=1===e.readBits(1),(r||n)&&(s=1===e.readBits(1),s&&(e.readBits(8),e.readBits(5),e.readBits(1),e.readBits(5)),e.readBits(4),e.readBits(4),s&&e.readBits(4),e.readBits(5),e.readBits(5),e.readBits(5));for(let a=0;a<=i;a++){let t=!0;1===e.readBits(1)||(t=1===e.readBits(1));let i=!1;t?v(e):i=1===e.readBits(1);let a=1;if(!i){a=v(e)+1}r&&St(e,a,s),n&&St(e,a,s)}},St=(e,t,i)=>{for(let r=0;r{const i=new Set;let r=wt.audAllowed;for(const s of ht(e,t)){if(r===wt.noMoreDataAllowed){i.add(s.offset);continue}const t=ft(e[s.offset]);if(r===wt.eoBitstreamAllowed&&37!==t){i.add(s.offset);continue}let n=!1;35===t?r>wt.audAllowed?n=!0:r=wt.beforeFirstVcl:t<=31?r>wt.afterFirstVcl?n=!0:r=wt.afterFirstVcl:36===t?r!==wt.afterFirstVcl?n=!0:r=wt.eoBitstreamAllowed:37===t?r=41&&t<=44||t>=48&&t<=55?r>wt.beforeFirstVcl?n=!0:r=wt.beforeFirstVcl:(38===t||40===t||t>=45&&t<=47||t>=56&&t<=63)&&r{if(t.description){const i=3&P(t.description)[21];return nt(e,i+1)}return rt(e)})(n,t)},xt={1:{colourPrimaries:5,transferCharacteristics:6,matrixCoefficients:5},2:{colourPrimaries:1,transferCharacteristics:1,matrixCoefficients:1},3:{colourPrimaries:6,transferCharacteristics:6,matrixCoefficients:6},4:{colourPrimaries:7,transferCharacteristics:7,matrixCoefficients:7},5:{colourPrimaries:9,transferCharacteristics:14,matrixCoefficients:9},7:{colourPrimaries:1,transferCharacteristics:13,matrixCoefficients:0}},Ct=e=>{var t,i,r;const n=new ze(e);if(2!==n.readBits(2))return null;const s=n.readBits(1),a=(n.readBits(1)<<1)+s;3===a&&n.skipBits(1);if(1===n.readBits(1))return null;if(0!==n.readBits(1))return null;n.skipBits(2);if(4817730!==n.readBits(24))return null;let o=8;if(a>=2){o=n.readBits(1)?12:10}const l=n.readBits(3);let c=0,u=0;if(7!==l){if(u=n.readBits(1),1===a||3===a){const e=n.readBits(1),t=n.readBits(1);c=e||t?e&&!t?2:1:3,n.skipBits(1)}else c=1}else c=3,u=1;const d=(n.readBits(16)+1)*(n.readBits(16)+1);let h=T(oi).level;for(const m of oi)if(d<=m.maxPictureSize){h=m.level;break}const f=xt[l];return{profile:a,level:h,bitDepth:o,chromaSubsampling:c,videoFullRangeFlag:u,colourPrimaries:null!=(t=null==f?void 0:f.colourPrimaries)?t:2,transferCharacteristics:null!=(i=null==f?void 0:f.transferCharacteristics)?i:2,matrixCoefficients:null!=(r=null==f?void 0:f.matrixCoefficients)?r:2}},Bt=function*(e){const t=new ze(e),i=()=>{let e=0;for(let i=0;i<8;i++){const r=t.readAlignedByte();if(e+=(127&r)*o(2,7*i),!(128&r))break;if(7===i&&128&r)return null}return e>o(2,32)-1?null:e};for(;t.getBitsLeft()>=8;){t.skipBits(1);const r=t.readBits(4),n=t.readBits(1),s=t.readBits(1);let a;if(t.skipBits(1),n&&t.skipBits(8),s){const e=i();if(null===e)return;a=e}else a=Math.floor(t.getBitsLeft()/8);y(t.pos%8===0),yield{type:r,data:e.subarray(t.pos/8,t.pos/8+a)},t.skipBits(8*a)}},Et=e=>{for(const{type:t,data:i}of Bt(e)){if(1!==t)continue;const e=new ze(i),r=e.readBits(3);e.readBits(1);const n=e.readBits(1);let s=0,a=0,o=0;if(n)s=e.readBits(5);else{let t=0;if(e.readBits(1)){e.skipBits(32),e.skipBits(32);if(e.readBits(1)){let t=0;for(;t<32&&!e.readBits(1);)t++;t<32&&e.skipBits(t)}t=e.readBits(1),t&&(o=e.readBits(5),e.skipBits(32),e.skipBits(5),e.skipBits(5))}const i=e.readBits(1),r=e.readBits(5);for(let n=0;n<=r;n++){e.skipBits(12);const r=e.readBits(5);if(0===n&&(s=r),r>7){const t=e.readBits(1);0===n&&(a=t)}if(t){if(e.readBits(1)){const t=o+1;e.skipBits(t),e.skipBits(t),e.skipBits(1)}}if(i){e.readBits(1)&&e.skipBits(4)}}}const l=e.readBits(4),c=e.readBits(4),u=l+1;e.skipBits(u);const d=c+1;e.skipBits(d);let h=0;if(h=n?0:e.readBits(1),h&&(e.skipBits(4),e.skipBits(3)),e.skipBits(1),e.skipBits(1),e.skipBits(1),!n){e.skipBits(1),e.skipBits(1),e.skipBits(1),e.skipBits(1);const t=e.readBits(1);t&&(e.skipBits(1),e.skipBits(1));let i=0;if(i=e.readBits(1)?2:e.readBits(1),i>0){e.readBits(1)||e.skipBits(1)}t&&e.skipBits(3)}e.skipBits(1),e.skipBits(1),e.skipBits(1);const f=e.readBits(1);let m=8;if(2===r&&f){m=e.readBits(1)?12:10}else r<=2&&(m=f?10:8);let p=0;1!==r&&(p=e.readBits(1));let g=2,k=2,y=2;e.readBits(1)&&(g=e.readBits(8),k=e.readBits(8),y=e.readBits(8));let b=0,T=1,v=1,S=0;return p?b=e.readBits(1):1===g&&13===k&&0===y?(b=1,T=0,v=0):(b=e.readBits(1),0===r?(T=1,v=1):1===r?(T=0,v=0):12===m?(T=e.readBits(1),v=T?e.readBits(1):0):(T=1,v=0),T&&v&&(S=e.readBits(2))),{profile:r,level:s,tier:a,bitDepth:m,monochrome:p,chromaSubsamplingX:T,chromaSubsamplingY:v,chromaSamplePosition:S,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},_t=e=>{if(e.length<36)return null;const t=I(e);if(1768124518!==t.getUint32(4))return null;return t.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:t.getUint8(22),transferCharacteristics:t.getUint8(23),matrixCoefficients:t.getUint8(24)}},Rt=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],Ft=e=>{if(e.length<7)throw new Error("Setup header is too short.");if(5!==e[0])throw new Error("Wrong packet type in Setup header.");if("vorbis"!==String.fromCharCode(...e.slice(1,7)))throw new Error("Invalid packet signature in Setup header.");const t=e.length,i=new Uint8Array(t);for(let u=0;u97;)if(1===r.readBits(1)){n=r.pos;break}if(0===n)throw new Error("Invalid Setup header: framing bit not found.");let s=0,a=!1,o=0;for(;r.getBitsLeft()>=97;){const e=r.pos,t=r.readBits(8),i=r.readBits(16),n=r.readBits(16);if(t>63||0!==i||0!==n){r.pos=e;break}if(r.skipBits(1),s++,s>64)break;r.clone().readBits(6)+1===s&&(a=!0,o=s)}if(!a)throw new Error("Invalid Setup header: mode header not found.");if(o>63)throw new Error(`Unsupported mode count: ${o}.`);const l=o;r.pos=0,r.skipBits(n);const c=Array(l).fill(0);for(let u=l-1;u>=0;u--)r.skipBits(40),c[u]=r.readBits(1);return{modeBlockflags:c}},At=(e,t,i)=>{switch(e){case"avc":for(const e of Ze(i,t)){const t=i[e.offset],r=et(t);if(r>=Xe.NON_IDR_SLICE&&r<=Xe.SLICE_DPC)return"delta";if(r===Xe.IDR)return"key";if(r===Xe.SEI&&!ke()){const t=i.subarray(e.offset,e.offset+e.length),r=tt(t);let n=1;do{let e=0;for(;;){const t=r[n++];if(void 0===t)break;if(e+=t,t<255)break}let t=0;for(;;){const e=r[n++];if(void 0===e)break;if(t+=e,e<255)break}if(e===6){const e=new ze(r);e.pos=8*n;const t=v(e),i=e.readBits(1);if(0===t&&1===i)return"key"}n+=t}while(n{var i,r;const n=I(e);let s=0;const a=n.getUint32(s,!0);s+=4;const o=x.decode(e.subarray(s,s+a));s+=a,a>0&&(null!=t.raw||(t.raw={}),null!=(i=t.raw).vendor||(i.vendor=o));const l=n.getUint32(s,!0);s+=4;for(let c=0;c0&&(null!=t.trackNumber||(t.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=t.tracksTotal||(t.tracksTotal=r))}break;case"TRACKTOTAL":{const e=Number.parseInt(c,10);Number.isInteger(e)&&e>0&&(null!=t.tracksTotal||(t.tracksTotal=e))}break;case"DISCNUMBER":{const e=c.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=t.discNumber||(t.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=t.discsTotal||(t.discsTotal=r))}break;case"DISCTOTAL":{const e=Number.parseInt(c,10);Number.isInteger(e)&&e>0&&(null!=t.discsTotal||(t.discsTotal=e))}break;case"DATE":{const e=new Date(c);Number.isNaN(e.getTime())||null!=t.date||(t.date=e)}break;case"GENRE":null!=t.genre||(t.genre=c);break;case"METADATA_BLOCK_PICTURE":{const e=we(c),i=I(e),r=i.getUint32(0,!1),n=i.getUint32(4,!1),s=String.fromCharCode(...e.subarray(8,8+n)),a=i.getUint32(8+n,!1),o=x.decode(e.subarray(12+n,12+n+a)),l=i.getUint32(n+a+28),u=e.subarray(n+a+32,n+a+32+l);null!=t.images||(t.images=[]),t.images.push({data:u,mimeType:s,kind:3===r?"coverFront":4===r?"coverBack":"unknown",name:void 0,description:o||void 0})}}}},Ot=[2,1,2,3,3,4,4,5],Lt=e=>{if(e.length<7)return null;if(11!==e[0]||119!==e[1])return null;const t=new ze(e);t.skipBits(16),t.skipBits(16);const i=t.readBits(2);if(3===i)return null;const r=t.readBits(6),n=t.readBits(5);if(n>8)return null;const s=t.readBits(3),a=t.readBits(3);0!==(1&a)&&1!==a&&t.skipBits(2),0!==(4&a)&&t.skipBits(2),2===a&&t.skipBits(2);return{fscod:i,bsid:n,bsmod:s,acmod:a,lfeon:t.readBits(1),bitRateCode:Math.floor(r/2)}},zt=[128,138,192,128,140,192,160,174,240,160,176,240,192,208,288,192,210,288,224,242,336,224,244,336,256,278,384,256,280,384,320,348,480,320,350,480,384,416,576,384,418,576,448,486,672,448,488,672,512,556,768,512,558,768,640,696,960,640,698,960,768,834,1152,768,836,1152,896,974,1344,896,976,1344,1024,1114,1536,1024,1116,1536,1280,1392,1920,1280,1394,1920,1536,1670,2304,1536,1672,2304,1792,1950,2688,1792,1952,2688,2048,2228,3072,2048,2230,3072,2304,2506,3456,2304,2508,3456,2560,2786,3840,2560,2788,3840],Ut=[1,2,3,6],qt=e=>{if(e.length<6)return null;if(11!==e[0]||119!==e[1])return null;const t=new ze(e);t.skipBits(16);const i=t.readBits(2);if(t.skipBits(3),0!==i&&2!==i)return null;const r=t.readBits(11),n=t.readBits(2);let s,a=0;3===n?(a=t.readBits(2),s=3):s=t.readBits(2);const o=t.readBits(3),l=t.readBits(1),c=t.readBits(5);if(c<11||c>16)return null;const u=Ut[s];let d;d=n<3?je[n]/1e3:Ke[a]/1e3;return{dataRate:Math.round((r+1)*d/(16*u)),substreams:[{fscod:n,fscod2:a,bsid:c,bsmod:0,acmod:o,lfeon:l,numDepSub:0,chanLoc:0}]}},Wt=e=>{const t=e.substreams[0];return y(t),t.fscod<3?je[t.fscod]:null!==t.fscod2&&t.fscod2<3?Ke[t.fscod2]:null},Ht=e=>{const t=e.substreams[0];y(t);let i=Ot[t.acmod]+t.lfeon;if(t.numDepSub>0){const e=[2,2,1,1,2,2,2,1,1];for(let r=0;r<9;r++)t.chanLoc&1<<8-r&&(i+=e[r])}return i},Vt=[0,8e3,16e3,32e3,0,0,11025,22050,44100,0,0,12e3,24e3,48e3,96e3,192e3],jt=[32e3,56e3,64e3,96e3,112e3,128e3,192e3,224e3,256e3,32e4,384e3,448e3,512e3,576e3,64e4,768e3,96e4,1024e3,1152e3,128e4,1344e3,1408e3,1411200,1472e3,1536e3,192e4,2048e3,3072e3,384e4,0,0,0],Kt=[16,16,20,20,0,24,24,0],Xt=[1,2,2,2,2,3,3,4,4,5,6,6,6,7,8,8],$t=[1,2,2,2,2,3,18,19,6,7,518,323,83,519,582,535],Gt=[32e3,44100,48e3,0],Qt=[8e3,16e3,32e3,64e3,128e3,22050,44100,88200,176400,352800,12e3,24e3,48e3,96e3,192e3,384e3],Yt=[512,1024,2048,4096],Jt=e=>{const t=ei(e),i=I(e);let r=t?4*Math.ceil(t.frameSize/4):0,n=null;for(;r+4<=e.length&&1683496997===i.getUint32(r);){const t=ti(e.subarray(r));if(!t)break;null!=n||(n=t),r+=t.frameSize}if(t)return{frameSize:n?r:t.frameSize,sampleRate:t.sampleRate,numberOfChannels:t.numberOfChannels,sampleCount:t.sampleCount,channelLayout:t.channelLayout,pcmResolution:t.pcmResolution,bitRate:t.bitRate,core:t,hasExtensions:null!==n};if(!(null==n?void 0:n.asset))return null;const{asset:s}=n;return{frameSize:r,sampleRate:s.sampleRate,numberOfChannels:s.numberOfChannels,sampleCount:s.sampleCount,channelLayout:s.channelLayout,pcmResolution:s.pcmResolution,bitRate:0,core:null,hasExtensions:!0}},Zt=e=>{const t=Jt(e);return(null==t?void 0:t.core)?t.hasExtensions?"dtsh":"dtsc":null},ei=e=>{if(e.length<18)return null;if(127!==e[0]||254!==e[1]||128!==e[2]||1!==e[3])return null;const t=new ze(e);if(t.skipBits(32),t.skipBits(1),31!==t.readBits(5))return null;const i=t.readBits(1),r=t.readBits(7)+1;if(r%8!==0)return null;const n=t.readBits(14)+1;if(n<96)return null;const s=t.readBits(6);if(s>=Xt.length)return null;const a=Vt[t.readBits(4)];if(0===a)return null;const o=jt[t.readBits(5)];if(0!==t.readBits(1))return null;t.skipBits(4),t.skipBits(5);const l=t.readBits(2);if(3===l)return null;t.skipBits(1),i&&t.skipBits(16),t.skipBits(7);const c=Kt[t.readBits(3)];if(0===c)return null;const u=0!==l;return{frameSize:n,sampleRate:a,numberOfChannels:Xt[s]+(u?1:0),sampleCount:32*r,channelLayout:$t[s]|(u?8:0),amode:s,lfePresent:u,bitRate:o,pcmResolution:c}},ti=e=>{if(e.length<10)return null;if(100!==e[0]||88!==e[1]||32!==e[2]||37!==e[3])return null;const t=new ze(e);t.skipBits(32),t.skipBits(8);const i=t.readBits(2),r=t.readBits(1),n=8+4*r,s=16+4*r;t.skipBits(n);const a=t.readBits(s)+1,o={frameSize:a,asset:null};if(!t.readBits(1))return o;const l=Gt[t.readBits(2)],c=512*(t.readBits(3)+1);t.readBits(1)&&t.skipBits(36);const u=t.readBits(3)+1,d=t.readBits(3)+1,h=[];for(let k=0;k2&&t.skipBits(1),p>6&&t.skipBits(1),t.readBits(1))){const e=t.readBits(2)+1<<2;g=t.readBits(e)}return 0===l||t.getBitsLeft()<0?o:{frameSize:a,asset:{sampleRate:m,numberOfChannels:p,sampleCount:Math.round(c*m/l),channelLayout:g,pcmResolution:f}}},ii=e=>ne(e)+ne(44646&e),ri=["avc","hevc","vp9","av1","vp8","prores"],ni=["pcm-s16","pcm-s16be","pcm-s24","pcm-s24be","pcm-s32","pcm-s32be","pcm-f32","pcm-f32be","pcm-f64","pcm-f64be","pcm-u8","pcm-s8","ulaw","alaw"],si=["aac","opus","mp3","vorbis","flac","ac3","eac3","dts",...ni],ai=[{maxMacroblocks:99,maxBitrate:64e3,maxDpbMbs:396,level:10},{maxMacroblocks:396,maxBitrate:192e3,maxDpbMbs:900,level:11},{maxMacroblocks:396,maxBitrate:384e3,maxDpbMbs:2376,level:12},{maxMacroblocks:396,maxBitrate:768e3,maxDpbMbs:2376,level:13},{maxMacroblocks:396,maxBitrate:2e6,maxDpbMbs:2376,level:20},{maxMacroblocks:792,maxBitrate:4e6,maxDpbMbs:4752,level:21},{maxMacroblocks:1620,maxBitrate:4e6,maxDpbMbs:8100,level:22},{maxMacroblocks:1620,maxBitrate:1e7,maxDpbMbs:8100,level:30},{maxMacroblocks:3600,maxBitrate:14e6,maxDpbMbs:18e3,level:31},{maxMacroblocks:5120,maxBitrate:2e7,maxDpbMbs:20480,level:32},{maxMacroblocks:8192,maxBitrate:2e7,maxDpbMbs:32768,level:40},{maxMacroblocks:8192,maxBitrate:5e7,maxDpbMbs:32768,level:41},{maxMacroblocks:8704,maxBitrate:5e7,maxDpbMbs:34816,level:42},{maxMacroblocks:22080,maxBitrate:135e6,maxDpbMbs:110400,level:50},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:51},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:52},{maxMacroblocks:139264,maxBitrate:24e7,maxDpbMbs:696320,level:60},{maxMacroblocks:139264,maxBitrate:48e7,maxDpbMbs:696320,level:61},{maxMacroblocks:139264,maxBitrate:8e8,maxDpbMbs:696320,level:62}],oi=[{maxPictureSize:36864,maxBitrate:2e5,level:10},{maxPictureSize:73728,maxBitrate:8e5,level:11},{maxPictureSize:122880,maxBitrate:18e5,level:20},{maxPictureSize:245760,maxBitrate:36e5,level:21},{maxPictureSize:552960,maxBitrate:72e5,level:30},{maxPictureSize:983040,maxBitrate:12e6,level:31},{maxPictureSize:2228224,maxBitrate:18e6,level:40},{maxPictureSize:2228224,maxBitrate:3e7,level:41},{maxPictureSize:8912896,maxBitrate:6e7,level:50},{maxPictureSize:8912896,maxBitrate:12e7,level:51},{maxPictureSize:8912896,maxBitrate:18e7,level:52},{maxPictureSize:35651584,maxBitrate:18e7,level:60},{maxPictureSize:35651584,maxBitrate:24e7,level:61},{maxPictureSize:35651584,maxBitrate:48e7,level:62}],li=".01.01.01.01.00",ci=".0.110.01.01.01.0",ui=["ap4x","ap4h","apch","apcn","apcs","apco"],di=["dtsc","dtsh","dtsl","dtse"],hi=e=>{const{codec:t,codecDescription:i,colorSpace:r,avcCodecInfo:n,hevcCodecInfo:s,vp9CodecInfo:a,av1CodecInfo:o,proresFormat:l}=e;if("avc"===t){if(y(null!==e.avcType),n){const t=new Uint8Array([n.avcProfileIndication,n.profileCompatibility,n.avcLevelIndication]);return`avc${e.avcType}.${z(t)}`}if(!i||i.byteLength<4)throw new TypeError("AVC decoder description is not provided or is not at least 4 bytes long.");return`avc${e.avcType}.${z(i.subarray(1,4))}`}if("hevc"===t){let e,t,r,n,a,o;if(s)e=s.generalProfileSpace,t=s.generalProfileIdc,r=U(s.generalProfileCompatibilityFlags),n=s.generalTierFlag,a=s.generalLevelIdc,o=[...s.generalConstraintIndicatorFlags];else{if(!i||i.byteLength<23)throw new TypeError("HEVC decoder description is not provided or is not at least 23 bytes long.");const s=I(i),l=s.getUint8(1);e=l>>6&3,t=31&l,r=U(s.getUint32(2)),n=l>>5&1,a=s.getUint8(12),o=[];for(let e=0;e<6;e++)o.push(s.getUint8(6+e))}let l="hev1.";for(l+=["","A","B","C"][e]+t,l+=".",l+=r.toString(16).toUpperCase(),l+=".",l+=0===n?"L":"H",l+=a;o.length>0&&0===o[o.length-1];)o.pop();return o.length>0&&(l+=".",l+=o.map(e=>e.toString(16).toUpperCase()).join(".")),l}if("vp8"===t)return"vp8";if("vp9"===t){if(!a){const t=e.width*e.height;let i=T(oi).level;for(const e of oi)if(t<=e.maxPictureSize){i=e.level;break}return`vp09.00.${i.toString().padStart(2,"0")}.08`}let t=`vp09.${a.profile.toString().padStart(2,"0")}.${a.level.toString().padStart(2,"0")}.${a.bitDepth.toString().padStart(2,"0")}.${a.chromaSubsampling.toString().padStart(2,"0")}`;return t+=`.${a.colourPrimaries.toString().padStart(2,"0")}.${a.transferCharacteristics.toString().padStart(2,"0")}.${a.matrixCoefficients.toString().padStart(2,"0")}.${a.videoFullRangeFlag.toString().padStart(2,"0")}`,t.endsWith(li)&&(t=t.slice(0,-15)),t}if("av1"===t){if(!o){const t=e.width*e.height;let i=T(oi).level;for(const e of oi)if(t<=e.maxPictureSize){i=e.level;break}return`av01.0.${i.toString().padStart(2,"0")}M.08`}const t=o.profile,i=o.level.toString().padStart(2,"0"),n=o.tier?"H":"M",s=o.bitDepth.toString().padStart(2,"0"),a=o.monochrome?"1":"0",l=100*o.chromaSubsamplingX+10*o.chromaSubsamplingY+1*(o.chromaSubsamplingX&&o.chromaSubsamplingY?o.chromaSamplePosition:0),c=(null==r?void 0:r.primaries)?B[r.primaries]:1,u=(null==r?void 0:r.transfer)?_[r.transfer]:1,d=(null==r?void 0:r.matrix)?F[r.matrix]:1,h=(null==r?void 0:r.fullRange)?1:0;let f=`av01.${t}.${i}${n}.${s}`;return f+=`.${a}.${l.toString().padStart(3,"0")}`,f+=`.${c.toString().padStart(2,"0")}`,f+=`.${u.toString().padStart(2,"0")}`,f+=`.${d.toString().padStart(2,"0")}`,f+=`.${h}`,f.endsWith(ci)&&(f=f.slice(0,-17)),f}if("prores"===t)return null!=l?l:"apch";throw null!==t&&$(t),new TypeError(`Unhandled codec '${t}'.`)},fi=e=>{var t,i,r,n,s,a;switch(e.codec){case"avc":{let r=null==(t=e.avcCodecInfo)?void 0:t.sequenceParameterSets[0];if(!r&&e.codecDescription&&(r=null==(i=ot(e.codecDescription))?void 0:i.sequenceParameterSets[0]),r){const e=ct(r);if(e)return{primaries:E[e.colourPrimaries],transfer:R[e.transferCharacteristics],matrix:A[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"hevc":{let t=null==(n=null==(r=e.hevcCodecInfo)?void 0:r.arrays.find(e=>e.nalUnitType===Ge.SPS_NUT))?void 0:n.nalUnits[0];if(!t&&e.codecDescription&&(t=null==(a=null==(s=(e=>{try{const t=I(e);let i=0;const r=t.getUint8(i++),n=t.getUint8(i++),s=n>>6&3,a=n>>5&1,o=31&n,l=t.getUint32(i,!1);i+=4;const c=e.subarray(i,i+6);i+=6;const u=t.getUint8(i++),d=(15&t.getUint8(i++))<<8|t.getUint8(i++),h=3&t.getUint8(i++),f=3&t.getUint8(i++),m=7&t.getUint8(i++),p=7&t.getUint8(i++),g=t.getUint16(i,!1);i+=2;const k=t.getUint8(i++),y=k>>6&3,b=k>>3&7,T=k>>2&1,v=3&k,S=t.getUint8(i++),w=[];for(let P=0;P>7&1,s=63&r,a=t.getUint16(i,!1);i+=2;const o=[];for(let l=0;le.nalUnitType===Ge.SPS_NUT))?void 0:a.nalUnits[0]),t){const e=mt(t);if(e)return{primaries:E[e.colourPrimaries],transfer:R[e.transferCharacteristics],matrix:A[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"vp8":break;case"vp9":if(e.vp9CodecInfo)return{primaries:E[e.vp9CodecInfo.colourPrimaries],transfer:R[e.vp9CodecInfo.transferCharacteristics],matrix:A[e.vp9CodecInfo.matrixCoefficients],fullRange:!!e.vp9CodecInfo.videoFullRangeFlag};break;case"av1":if(e.av1CodecInfo)return{primaries:E[e.av1CodecInfo.colourPrimaries],transfer:R[e.av1CodecInfo.transferCharacteristics],matrix:A[e.av1CodecInfo.matrixCoefficients],fullRange:!!e.av1CodecInfo.videoFullRangeFlag};break;case"prores":if(e.proresCodecInfo)return{primaries:E[e.proresCodecInfo.colourPrimaries],transfer:R[e.proresCodecInfo.transferCharacteristics],matrix:A[e.proresCodecInfo.matrixCoefficients],fullRange:e.proresCodecInfo.fullRange}}return{primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0}},mi=e=>{const{codec:t,codecDescription:i,aacCodecInfo:r,dtsFormat:n}=e;if("aac"===t){if(!r)throw new TypeError("AAC codec info must be provided.");if(r.isMpeg2)return"mp4a.67";{let e;if(null!==r.objectType)e=r.objectType;else{e=We(i).objectType}return`mp4a.40.${e}`}}if("mp3"===t)return"mp3";if("opus"===t)return"opus";if("vorbis"===t)return"vorbis";if("flac"===t)return"flac";if("ac3"===t)return"ac-3";if("eac3"===t)return"ec-3";if("dts"===t)return null!=n?n:"dtsc";if(t&&ni.includes(t))return t;throw new TypeError(`Unhandled codec '${t}'.`)},pi=48e3,gi=/^pcm-([usf])(\d+)(be)?$/,ki=e=>{if(y(ni.includes(e)),"ulaw"===e)return{dataType:"ulaw",sampleSize:1,littleEndian:!0,silentValue:255};if("alaw"===e)return{dataType:"alaw",sampleSize:1,littleEndian:!0,silentValue:213};const t=gi.exec(e);let i;y(t),i="u"===t[1]?"unsigned":"s"===t[1]?"signed":"float";return{dataType:i,sampleSize:Number(t[2])/8,littleEndian:"be"!==t[3],silentValue:"pcm-u8"===e?o(2,7):0}},yi=e=>e.startsWith("avc1")||e.startsWith("avc3")?"avc":e.startsWith("hev1")||e.startsWith("hvc1")?"hevc":"vp8"===e?"vp8":e.startsWith("vp09")?"vp9":e.startsWith("av01")?"av1":ui.includes(e)?"prores":"mp3"===e||"mp4a.69"===e||"mp4a.6B"===e||"mp4a.6b"===e||"mp4a.40.34"===e?"mp3":e.startsWith("mp4a.40.")||"mp4a.67"===e?"aac":"opus"===e?"opus":"vorbis"===e?"vorbis":"flac"===e?"flac":"ac-3"===e||"ac3"===e?"ac3":"ec-3"===e||"eac3"===e?"eac3":di.includes(e)?"dts":"ulaw"===e?"ulaw":"alaw"===e?"alaw":gi.test(e)?e:"webvtt"===e?"webvtt":null,bi=[44100,48e3,32e3],Ti=[-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],vi=1483304551,Si=1231971951,wi=(e,t)=>3===e?3===t?21:36:3===t?13:21,Pi=(e,t)=>{const i=e>>>24,r=e>>>16&255,n=e>>>8&255,s=255&e;if(255!==i&&255!==r&&255!==n&&255!==s)return{header:null,bytesAdvanced:4};if(255!==i)return{header:null,bytesAdvanced:1};if(224!==(224&r))return{header:null,bytesAdvanced:1};let a=0,o=0;16&r?a=8&r?0:1:(a=1,o=1);const l=r>>3&3,c=r>>1&3,u=(n>>2&3)%3,d=s>>6&3,h=s>>4&3,f=s>>3&1,m=s>>2&1,p=3&s,g=Ti[16*a*4+16*c+(n>>4&15)];if(-1===g)return{header:null,bytesAdvanced:1};const k=1e3*g,y=bi[u]>>a+o,b=((e,t,i,r,n)=>0===t?0:1===t?Math.floor(144*i/(r<>1&1);if(null!==t&&t{let t=2130706432,i=0;for(;0!==t;)i>>=1,i|=e&t,t>>=8;return i};var xi,Ci;(Ci=xi||(xi={}))[Ci.FrameCount=1]="FrameCount",Ci[Ci.FileSize=2]="FileSize",Ci[Ci.Toc=4]="Toc";const Bi=e=>3===e?1:2;class Ei{constructor(e){this.input=e}dispose(){}}const _i=new Uint8Array(0);class Ri{constructor(e,t,i,r,n=-1,s,a){if(this.data=e,this.type=t,this.timestamp=i,this.duration=r,this.sequenceNumber=n,e===_i&&void 0===s)throw new Error("Internal error: byteLength must be explicitly provided when constructing metadata-only packets.");if(void 0===s&&(s=e.byteLength),!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("key"!==t&&"delta"!==t)throw new TypeError('type must be either "key" or "delta".');if(!Number.isFinite(i))throw new TypeError("timestamp must be a number.");if(!Number.isFinite(r)||r<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(n))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(s)||s<0)throw new TypeError("byteLength must be a non-negative integer.");if(void 0!==a&&("object"!==typeof a||!a))throw new TypeError("sideData, when provided, must be an object.");if(void 0!==(null==a?void 0:a.alpha)&&!(a.alpha instanceof Uint8Array))throw new TypeError("sideData.alpha, when provided, must be a Uint8Array.");if(void 0!==(null==a?void 0:a.alphaByteLength)&&(!Number.isInteger(a.alphaByteLength)||a.alphaByteLength<0))throw new TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=s,this.sideData=null!=a?a:{},this.sideData.alpha&&void 0===this.sideData.alphaByteLength&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}get isMetadataOnly(){return this.data===_i}get microsecondTimestamp(){return Math.trunc(oe*this.timestamp)}get microsecondDuration(){return Math.trunc(oe*this.duration)}toEncodedVideoChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}alphaToEncodedVideoChunk(e=this.type){if(!this.sideData.alpha)throw new TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.sideData.alpha,type:e,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}toEncodedAudioChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to an audio chunk.");if("undefined"===typeof EncodedAudioChunk)throw new Error("EncodedAudioChunk is not available in this environment.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}static fromEncodedChunk(e,t){var i;if(!(e instanceof EncodedVideoChunk||e instanceof EncodedAudioChunk))throw new TypeError("chunk must be an EncodedVideoChunk or EncodedAudioChunk.");const r=new Uint8Array(e.byteLength);return e.copyTo(r),new Ri(r,e.type,e.timestamp/1e6,(null!=(i=e.duration)?i:0)/1e6,void 0,void 0,t)}clone(e){var t,i,r,n,s,a;if(void 0!==e&&("object"!==typeof e||null===e))throw new TypeError("options, when provided, must be an object.");if(void 0!==(null==e?void 0:e.data)&&!(e.data instanceof Uint8Array))throw new TypeError("options.data, when provided, must be a Uint8Array.");if(void 0!==(null==e?void 0:e.type)&&"key"!==e.type&&"delta"!==e.type)throw new TypeError('options.type, when provided, must be either "key" or "delta".');if(void 0!==(null==e?void 0:e.timestamp)&&!Number.isFinite(e.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(void 0!==(null==e?void 0:e.duration)&&!Number.isFinite(e.duration))throw new TypeError("options.duration, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sequenceNumber)&&!Number.isFinite(e.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sideData)&&("object"!==typeof e.sideData||null===e.sideData))throw new TypeError("options.sideData, when provided, must be an object.");return new Ri(null!=(t=null==e?void 0:e.data)?t:this.data,null!=(i=null==e?void 0:e.type)?i:this.type,null!=(r=null==e?void 0:e.timestamp)?r:this.timestamp,null!=(n=null==e?void 0:e.duration)?n:this.duration,null!=(s=null==e?void 0:e.sequenceNumber)?s:this.sequenceNumber,this.byteLength,null!=(a=null==e?void 0:e.sideData)?a:this.sideData)}}const Fi=e=>{const t=I(e);let i=0;const r=t.getUint8(i);i+=1,i+=3;const n=z(e.subarray(i,i+16));i+=16;let s=null;if(r>0){const r=t.getUint32(i);if(i+=4,r>0){s=[];for(let t=0;te.systemId===t.systemId&&((e,t)=>{if(e.length!==t.length)return!1;for(let i=0;i{let t=Lo(e);const i=Xo(e,4);let r=8;1===t&&(t=Wo(e),r=16);const n=t-r;return n<0?null:{name:i,totalSize:t,headerSize:r,contentSize:n}},Mi=e=>Uo(e)/65536,Ni=e=>Uo(e)/1073741824,Oi=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=Fo(e);if(t|=127&i,0===(128&i))break}return t},Li=e=>{let t=Do(e);return e.skip(2),t=Math.min(t,e.remainingLength),x.decode(Ro(e,t))},zi=e=>{const t=Di(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=Lo(e);e.skip(4);const r=Ro(e,t.contentSize-8);switch(i){case 1:return x.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new Ne(r,"image/jpeg");case 14:return new Ne(r,"image/png");case 27:return new Ne(r,"image/bmp");default:return r}},Ui=16,qi=new Uint32Array(256),Wi=new Uint32Array(256),Hi=new Uint32Array(256),Vi=new Uint32Array(256),ji=new Uint32Array(256),Ki=new Uint32Array(256),Xi=new Uint32Array(10);let $i=!1;class Gi{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(Ui/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(Ui),this.out=new Uint8Array(Ui),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){y(16===e.byteLength),y(16===t.byteLength),$i||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,a=1;s<256;s++)i[s]=a,t[a]=s,a=a^a<<1^(128&a?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let n=r^r<<1^r<<2^r<<3^r<<4;n=n>>>8^255&n^99,e[s]=n}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);qi[s]=t<<24|t<<16|t<<8|t,Ki[s]=i<<24|i<<16|i<<8|i;const n=r(i,14)<<24|r(i,9)<<16|r(i,13)<<8|r(i,11);Wi[s]=n,Hi[s]=n>>>8|n<<24,Vi[s]=n>>>16|n<<16,ji[s]=n>>>24|n<<8}let n=1;for(let s=0;s<10;s++)Xi[s]=n<<24,n=n<<1^(128&n?283:0);$i=!0})();const i=new DataView(e.buffer,e.byteOffset,e.byteLength),r=new DataView(t.buffer,t.byteOffset,t.byteLength);this.roundkey[0]=i.getUint32(0,!1),this.roundkey[1]=i.getUint32(4,!1),this.roundkey[2]=i.getUint32(8,!1),this.roundkey[3]=i.getUint32(12,!1),this.iv[0]=r.getUint32(0,!1),this.iv[1]=r.getUint32(4,!1),this.iv[2]=r.getUint32(8,!1),this.iv[3]=r.getUint32(12,!1);for(let n=4;n<44;n+=4){const e=this.roundkey[n-1];this.roundkey[n]=this.roundkey[n-4]^4278190080&qi[e>>>16&255]^16711680&qi[e>>>8&255]^65280&qi[e>>>0&255]^255&qi[e>>>24&255]^Xi[n/4-1],this.roundkey[n+1]=this.roundkey[n-3]^this.roundkey[n],this.roundkey[n+2]=this.roundkey[n-2]^this.roundkey[n+1],this.roundkey[n+3]=this.roundkey[n-1]^this.roundkey[n+2]}for(let n=0,s=40;n>>24&255]]^Hi[255&qi[t>>>16&255]]^Vi[255&qi[t>>>8&255]]^ji[255&qi[t>>>0&255]]}}decrypt(){let e=this.inView.getUint32(0,!1)^this.roundkey[0],t=this.inView.getUint32(4,!1)^this.roundkey[1],i=this.inView.getUint32(8,!1)^this.roundkey[2],r=this.inView.getUint32(12,!1)^this.roundkey[3];const n=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),a=this.inView.getUint32(8,!1),o=this.inView.getUint32(12,!1);let l,c,u,d;for(let g=1;g<10;g++){const n=4*g;l=Wi[e>>>24]^Hi[r>>>16&255]^Vi[i>>>8&255]^ji[255&t]^this.roundkey[n],c=Wi[t>>>24]^Hi[e>>>16&255]^Vi[r>>>8&255]^ji[255&i]^this.roundkey[n+1],u=Wi[i>>>24]^Hi[t>>>16&255]^Vi[e>>>8&255]^ji[255&r]^this.roundkey[n+2],d=Wi[r>>>24]^Hi[i>>>16&255]^Vi[t>>>8&255]^ji[255&e]^this.roundkey[n+3],e=l,t=c,i=u,r=d}const h=4278190080&Ki[e>>>24&255]^16711680&Ki[r>>>16&255]^65280&Ki[i>>>8&255]^255&Ki[t>>>0&255]^this.roundkey[40],f=4278190080&Ki[t>>>24&255]^16711680&Ki[e>>>16&255]^65280&Ki[r>>>8&255]^255&Ki[i>>>0&255]^this.roundkey[41],m=4278190080&Ki[i>>>24&255]^16711680&Ki[t>>>16&255]^65280&Ki[e>>>8&255]^255&Ki[r>>>0&255]^this.roundkey[42],p=4278190080&Ki[r>>>24&255]^16711680&Ki[i>>>16&255]^65280&Ki[t>>>8&255]^255&Ki[e>>>0&255]^this.roundkey[43];this.outView.setUint32(0,h^this.iv[0],!1),this.outView.setUint32(4,f^this.iv[1],!1),this.outView.setUint32(8,m^this.iv[2],!1),this.outView.setUint32(12,p^this.iv[3],!1),this.iv[0]=n,this.iv[1]=s,this.iv[2]=a,this.iv[3]=o}}class Qi extends Ei{constructor(e){super(e),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=e._reader}getTrackBackings(){return d(this,null,function*(){return yield this.readMetadata(),this.tracks.map(e=>e.trackBacking)})}getMimeType(){return d(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isQuickTime?"quicktime":"mp4");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)}),hasAudio:this.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)}),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return d(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>d(this,null,function*(){let e=0,t=!1,i=!1;for(;;){let r=this.reader.requestSliceRange(e,8,16);if(Te(r)&&(r=yield r),!r)break;const n=e,s=Di(r);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=Xo(r,4);this.isQuickTime="qt "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(r.filePos,s.contentSize);if(Te(e)&&(e=yield e),!e)break;this.moovSlice=e,this.readContiguousBoxes(this.moovSlice);for(const t of this.tracks){const e=t.editListPreviousSegmentDurations/this.movieTimescale;t.editListOffset-=Math.round(e*t.timescale)}t=this.isFragmented&&null!==this.reader.fileSize&&this.reader.fileSize>n+s.totalSize,i=!0;break}if("moof"===s.name){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');yield this.copyMetadataFromInitInput(this.input._initInput),t=!1,i=!0;break}}e=n+s.totalSize}if(!i&&this.input._initInput&&(yield this.copyMetadataFromInitInput(this.input._initInput)),t){y(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);Te(e)&&(e=yield e),y(e);const t=Lo(e),i=this.reader.fileSize-t;if(i>=0&&i<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(i,8,16);if(Te(e)&&(e=yield e),e){const t=Di(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);Te(i)&&(i=yield i),i&&this.readContiguousBoxes(i)}}}}}))()}copyMetadataFromInitInput(e){return d(this,null,function*(){const t=yield e._getDemuxer();if(t.constructor!==Qi)throw new Error("Init input must match the input's format.");yield t.readMetadata(),this.movieTimescale=t.movieTimescale,this.movieDurationInTimescale=t.movieDurationInTimescale,this.metadataTags=t.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=t.fragmentTrackDefaults,this.psshBoxes=t.psshBoxes;for(const e of t.tracks){const t={id:e.id,demuxer:this,trackBacking:null,disposition:e.disposition,timescale:e.timescale,durationInMediaTimescale:e.durationInMediaTimescale,durationInMovieTimescale:e.durationInMovieTimescale,rotation:e.rotation,internalCodecId:e.internalCodecId,name:e.name,languageCode:e.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:e.editListPreviousSegmentDurations,editListOffset:e.editListOffset,encryptionInfo:e.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:e.info};if(e.trackBacking)if(y(t.info),"video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new Ji(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new Zi(e),this.tracks.push(t)}}})}getSampleTableForTrack(e){var t,i;if(e.sampleTable)return e.sampleTable;const r={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=r,null===e.sampleTableByteOffset)return r;y(this.moovSlice);const n=this.moovSlice.slice(e.sampleTableByteOffset);this.currentTrack=e,this.traverseBox(n),this.currentTrack=null;if("audio"===(null==(t=e.info)?void 0:t.type)&&e.info.codec&&ni.includes(e.info.codec)&&0===r.sampleCompositionTimeOffsets.length){y("audio"===(null==(i=e.info)?void 0:i.type));const t=ki(e.info.codec),n=[],s=[];for(let i=0;ie.startIndex),u=r.sampleTimingEntries[c],d=W(r.sampleTimingEntries,l,e=>e.startIndex),h=r.sampleTimingEntries[d],f=u.startDecodeTimestamp+(o-u.startIndex)*u.delta,m=h.startDecodeTimestamp+(l-h.startIndex)*h.delta-f,p=T(n);p&&p.delta===m?p.count++:n.push({startIndex:a.startChunkIndex+i,startDecodeTimestamp:f,count:1,delta:m});const g=a.samplesPerChunk*t.sampleSize*e.info.numberOfChannels;s.push(g)}a.startSampleIndex=a.startChunkIndex,a.samplesPerChunk=1}r.sampleTimingEntries=n,r.sampleSizes=s}if(r.sampleCompositionTimeOffsets.length>0){r.presentationTimestamps=[];for(const e of r.sampleTimingEntries)for(let t=0;te.presentationTimestamp-t.presentationTimestamp),r.presentationTimestampIndexMap=Array(r.presentationTimestamps.length).fill(-1);for(let e=0;ee.moofOffset===s.moofOffset);if(r)nr(e,r.timestamp);else{const t=W(i,s.moofOffset-1,e=>e.moofOffset);if(-1!==t){const r=i[t];nr(e,r.endTimestamp)}}e.startTimestampIsFinal=!0}const r=W(i,e.startTimestamp,e=>e.startTimestamp);if(-1!==r&&i[r].moofOffset===s.moofOffset||i.splice(r+1,0,{moofOffset:s.moofOffset,startTimestamp:e.startTimestamp,endTimestamp:e.endTimestamp}),e.encryptionAuxInfo&&t.encryptionInfo){const i=yield lr(this.reader,t.encryptionInfo,e.encryptionAuxInfo);for(let t=0;t0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;ae(t.languageCode)||(t.languageCode=Z)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=Xo(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:c({},M),avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:"soun"===i&&(t.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const t=this.currentTrack;if(!t)break;t.sampleTableByteOffset=ge,this.readContiguousBoxes(e.slice(ye,ke.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=Fo(e);e.skip(3);const r=Lo(e);for(let n=0;n0&&(1===a?(e.skip(4),l=8*Lo(e),e.skip(8)):2===a&&(e.skip(4),c=Ko(e),o=Lo(e),e.skip(4),l=Lo(e),u=Lo(e),e.skip(8))),t.info.numberOfChannels=o,t.info.sampleRate=c,t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+n.totalSize-e.filePos));const d="enca"===s?t.frmaCodecString:s;if(t.frmaCodecString=null,"mp4a"===d);else if("opus"===d)t.info.codec="opus",t.info.sampleRate=pi;else if("flac"===d)t.info.codec="flac";else if("ulaw"===d)t.info.codec="ulaw";else if("alaw"===d)t.info.codec="alaw";else if("ac-3"===d)t.info.codec="ac3";else if("ec-3"===d)t.info.codec="eac3";else if(di.includes(d))t.info.codec="dts",t.info.dtsFormat=d;else if("twos"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec=t.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(Me._warn(`Unsupported sample size ${l} for codec 'twos'.`),t.info.codec=null);else if("sowt"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec="pcm-s16":(Me._warn(`Unsupported sample size ${l} for codec 'sowt'.`),t.info.codec=null);else if("raw "===d)t.info.codec="pcm-u8";else if("in24"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if("in32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if("fl32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if("fl64"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if("ipcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?16===e?t.info.codec="pcm-s16":24===e?t.info.codec="pcm-s24":32===e?t.info.codec="pcm-s32":(Me._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null):16===e?t.info.codec="pcm-s16be":24===e?t.info.codec="pcm-s24be":32===e?t.info.codec="pcm-s32be":(Me._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null)}else if("fpcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?32===e?t.info.codec="pcm-f32":64===e?t.info.codec="pcm-f64":(Me._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(Me._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===d&&null!==u){const e=l+7>>3,i=Boolean(1&u),r=Boolean(2&u),n=4&u?-1:0;l>0&&l<=64&&(i?32===l&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):n&1<0?(t.encryptionInfo.defaultCryptByteBlock=r>>4,t.encryptionInfo.defaultSkipByteBlock=15&r):(t.encryptionInfo.defaultCryptByteBlock=0,t.encryptionInfo.defaultSkipByteBlock=0),t.encryptionInfo.defaultIsProtected=0!==Fo(e),t.encryptionInfo.defaultPerSampleIvSize=Fo(e),t.encryptionInfo.defaultKid=z(Ro(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=Fo(e),r=new Uint8Array(16);r.set(Ro(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(y(t.info),0===ke.contentSize)break;t.info.codecDescription=Ro(e,ke.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(y(t.info),0===ke.contentSize)break;t.info.codecDescription=Ro(e,ke.contentSize)}break;case"vpcC":{const i=this.currentTrack;if(!i)break;y("video"===(null==(t=i.info)?void 0:t.type)),e.skip(4);const r=Fo(e),n=Fo(e),s=Fo(e),a=s>>4,o=s>>1&7,l=1&s,c=Fo(e),u=Fo(e),d=Fo(e);i.info.vp9CodecInfo={profile:r,level:n,bitDepth:a,chromaSubsampling:o,videoFullRangeFlag:l,colourPrimaries:c,transferCharacteristics:u,matrixCoefficients:d}}break;case"av1C":{const t=this.currentTrack;if(!t)break;y("video"===(null==(i=t.info)?void 0:i.type)),e.skip(1);const o=Fo(e),l=o>>5,c=31&o,u=Fo(e),d=u>>7,h=u>>6&1,f=u>>4&1,m=u>>3&1,p=u>>2&1,g=3&u,k=2===l&&h?u>>5&1?12:10:h?10:8;e.skip(1);const b=Ro(e,ke.contentSize-4),T=Et(b);t.info.av1CodecInfo={profile:l,level:c,tier:d,bitDepth:k,monochrome:f,chromaSubsamplingX:m,chromaSubsamplingY:p,chromaSamplePosition:g,videoFullRangeFlag:null!=(r=null==T?void 0:T.videoFullRangeFlag)?r:0,colourPrimaries:null!=(n=null==T?void 0:T.colourPrimaries)?n:2,transferCharacteristics:null!=(s=null==T?void 0:T.transferCharacteristics)?s:2,matrixCoefficients:null!=(a=null==T?void 0:T.matrixCoefficients)?a:2}}break;case"colr":{const t=this.currentTrack;if(!t)break;y("video"===(null==(o=t.info)?void 0:o.type));const i=Xo(e,4);if("nclx"!==i&&"nclc"!==i)break;const r=Do(e),n=Do(e),s=Do(e);let a;"nclx"===i&&(a=Boolean(128&Fo(e))),t.info.colorSpace={primaries:E[r],transfer:R[n],matrix:A[s],fullRange:a}}break;case"pasp":{const t=this.currentTrack;if(!t)break;y("video"===(null==(l=t.info)?void 0:l.type));const i=Lo(e),r=Lo(e);i>0&&r>0&&(i>r?t.info.squarePixelWidth=Math.round(t.info.width*i/r):t.info.squarePixelHeight=Math.round(t.info.height*r/i))}break;case"esds":{const t=this.currentTrack;if(!t||"audio"!==(null==(d=t.info)?void 0:d.type))break;e.skip(4);y(3===Fo(e)),Oi(e),e.skip(2);const i=Fo(e),r=0!==(64&i),n=0!==(32&i);if(0!==(128&i)&&e.skip(2),r){const t=Fo(e);e.skip(t)}n&&e.skip(2);y(4===Fo(e));const s=Oi(e),a=e.filePos,o=Fo(e);if(64===o||103===o?(t.info.codec="aac",t.info.aacCodecInfo={isMpeg2:103===o,objectType:null}):105===o||107===o?t.info.codec="mp3":221===o?t.info.codec="vorbis":169===o?t.info.codec="dts":Me._warn(`Unsupported audio codec (objectTypeIndication ${o}) - discarding track.`),e.skip(12),s>e.filePos-a){y(5===Fo(e));const i=Oi(e);if(t.info.codecDescription=Ro(e,i),"aac"===t.info.codec){const e=We(t.info.codecDescription);null!==e.outputNumberOfChannels&&(t.info.numberOfChannels=e.outputNumberOfChannels),null!==e.outputSampleRate&&(t.info.sampleRate=e.outputSampleRate)}}}break;case"enda":{const t=this.currentTrack;if(!t)break;y("audio"===(null==(h=t.info)?void 0:h.type)),t.info.pcmLittleEndian=!!(255&Do(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;y("audio"===(null==(f=t.info)?void 0:f.type)),e.skip(4);const i=Fo(e);t.info.pcmLittleEndian=Boolean(1&i),t.info.pcmSampleSize=Fo(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;y("audio"===(null==(m=t.info)?void 0:m.type)),e.skip(1);const i=Fo(e),r=Do(e),n=Lo(e),s=No(e),a=Fo(e);let o;o=0!==a?Ro(e,2+i):new Uint8Array(0);const l=new Uint8Array(19+o.byteLength),c=new DataView(l.buffer);c.setUint32(0,1332770163,!1),c.setUint32(4,1214603620,!1),c.setUint8(8,1),c.setUint8(9,i),c.setUint16(10,r,!0),c.setUint32(12,n,!0),c.setInt16(16,s,!0),c.setUint8(18,a),l.set(o,19),t.info.codecDescription=l,t.info.numberOfChannels=i}break;case"dfLa":{const t=this.currentTrack;if(!t)break;y("audio"===(null==(p=t.info)?void 0:p.type)),e.skip(4);const i=127,r=128,n=e.filePos;for(;e.filePos>>12,n=1+(i>>9&7);t.info.sampleRate=r,t.info.numberOfChannels=n,e.skip(20)}else e.skip(s);if(n&r)break}const s=e.filePos;e.filePos=n;const a=Ro(e,s-n),o=new Uint8Array(4+a.byteLength);new DataView(o.buffer).setUint32(0,1716281667,!1),o.set(a,4),t.info.codecDescription=o}break;case"dac3":{const t=this.currentTrack;if(!t)break;y("audio"===(null==(g=t.info)?void 0:g.type));const i=Ro(e,3),r=new ze(i),n=r.readBits(2);r.skipBits(8);const s=r.readBits(3),a=r.readBits(1);n<3&&(t.info.sampleRate=je[n]),t.info.numberOfChannels=Ot[s]+a}break;case"dec3":{const t=this.currentTrack;if(!t)break;y("audio"===(null==(k=t.info)?void 0:k.type));const i=(e=>{if(e.length<2)return null;const t=new ze(e),i=t.readBits(13),r=t.readBits(3),n=[];for(let s=0;s<=r&&!(Math.ceil(t.pos/8)+3>e.length);s++){const e=t.readBits(2),i=t.readBits(5);t.skipBits(1),t.skipBits(1);const r=t.readBits(3),s=t.readBits(3),a=t.readBits(1);t.skipBits(3);const o=t.readBits(4);let l=0;o>0?l=t.readBits(9):t.skipBits(1),n.push({fscod:e,fscod2:null,bsid:i,bsmod:r,acmod:s,lfeon:a,numDepSub:o,chanLoc:l})}return 0===n.length?null:{dataRate:i,substreams:n}})(Ro(e,ke.contentSize));if(!i){Me._warn("Invalid dec3 box contents, ignoring.");break}const r=Wt(i);null!==r&&(t.info.sampleRate=r),t.info.numberOfChannels=Ht(i)}break;case"ddts":{const t=this.currentTrack;if(!t)break;y("audio"===(null==(v=t.info)?void 0:v.type));const i=(e=>{if(e.length<20)return null;const t=I(e),i=t.getUint32(0);if(0===i)return null;const r=new ze(e);r.seekToByte(13);const n=r.readBits(2);r.skipBits(5);const s=r.readBits(1),a=r.readBits(6);r.skipBits(14),r.skipBits(1),r.skipBits(3);const o=r.readBits(16);let l=null;return 0!==o?l=ii(o):ae.id===i);if(!r)break;const n=Lo(e),s=(12&n)>>2,a=3&n,o=[Fo,Do,Mo,Lo],l=o[(48&n)>>4],c=o[s],u=o[a],d=Lo(e);for(let h=0;he.timestamp-t.timestamp);for(let e=0;e({presentationTimestamp:e.presentationTimestamp,sampleIndex:t})).sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp);for(let n=0;ne.id===c);if(!u)break;const d=this.fragmentTrackDefaults.find(e=>e.trackId===c);this.currentTrack=u,u.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:null!=(w=null==d?void 0:d.defaultSampleDescriptionIndex)?w:null,defaultSampleDuration:null!=(P=null==d?void 0:d.defaultSampleDuration)?P:null,defaultSampleSize:null!=(C=null==d?void 0:d.defaultSampleSize)?C:null,defaultSampleFlags:null!=(B=null==d?void 0:d.defaultSampleFlags)?B:null,startTimestamp:null,encryptionAuxInfo:null},i?u.currentFragmentState.baseDataOffset=Wo(e):l&&(u.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),r&&(u.currentFragmentState.sampleDescriptionIndex=Lo(e)),n&&(u.currentFragmentState.defaultSampleDuration=Lo(e)),s&&(u.currentFragmentState.defaultSampleSize=Lo(e)),a&&(u.currentFragmentState.defaultSampleFlags=Lo(e)),o&&(u.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;y(t.currentFragmentState);const i=Fo(e);e.skip(3);const r=0===i?Lo(e):Wo(e);t.currentFragmentState.startTimestamp=r}break;case"trun":{const t=this.currentTrack;if(!t)break;y(this.currentFragment),y(t.currentFragmentState);const i=Fo(e),r=Mo(e),n=Boolean(1&r),s=Boolean(4&r),a=Boolean(256&r),o=Boolean(512&r),l=Boolean(1024&r),c=Boolean(2048&r),u=Lo(e);let d=null;n&&(d=Uo(e));let h,f=null;s&&(f=Lo(e)),this.currentFragment.trackData.has(t.id)?(h=this.currentFragment.trackData.get(t.id),null!==d&&(h.currentOffset=t.currentFragmentState.baseDataOffset+d)):(h={track:t,currentTimestamp:0,currentOffset:t.currentFragmentState.baseDataOffset+(null!=d?d:0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(t.id,h));for(let m=0;m0&&(n=Ro(e,r));const s=or(t);s.defaultSampleInfoSize=i,s.sampleSizes=n,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=Fo(e);if(1&Mo(e)){const i=Xo(e,4),r=Lo(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=Lo(e);if(0===r)break;r>1&&Me._warn("Multiple saio entries are not supported; using the first offset only.");let n=0===i?Lo(e):Number(Wo(e));this.currentFragment&&(n+=this.currentFragment.moofOffset);or(t).offset=n}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;y(this.currentFragment);const i=this.currentFragment.trackData.get(t.id);if(!i)break;e.skip(1);const r=Mo(e),n=Boolean(2&r),s=Lo(e),a=t.encryptionInfo.defaultPerSampleIvSize;y(null!==a);for(let o=0;o0?r.set(Ro(e,a),0):r.set(t.encryptionInfo.defaultConstantIv,0);let s=null;if(n){const t=Do(e);s=[];for(let i=0;i0&&(null!=(ue=this.metadataTags).trackNumber||(ue.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(de=this.metadataTags).tracksTotal||(de.tracksTotal=i))}break;case"trkn":if(n instanceof Uint8Array&&n.length>=6){const e=I(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(he=this.metadataTags).trackNumber||(he.trackNumber=t)),i>0&&(null!=(fe=this.metadataTags).tracksTotal||(fe.tracksTotal=i))}break;case"disc":case"disk":if(n instanceof Uint8Array&&n.length>=6){const e=I(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(me=this.metadataTags).discNumber||(me.discNumber=t)),i>0&&(null!=(pe=this.metadataTags).discsTotal||(pe.discsTotal=i))}}}}}return e.filePos=be,!0}}class Yi{constructor(e){this.internalTrack=e,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.tracks)if(r.trackBacking.getType()===t&&i++,r===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return d(this,null,function*(){var e;const t=this.internalTrack;if(t.durationInMediaTimescale<=0)return null;y(t.trackBacking);const i=yield t.trackBacking.getFirstPacket({metadataOnly:!0});return(null!=(e=null==i?void 0:i.timestamp)?e:0)+t.durationInMediaTimescale/t.timescale})}getLiveRefreshInterval(){return d(this,null,function*(){return null})}getFirstPacket(e){return d(this,null,function*(){const t=yield this.fetchPacketForSampleIndex(0,e);return t||!this.internalTrack.demuxer.isFragmented?t:this.performFragmentedLookup(null,e=>e.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,e)})}mapTimestampIntoTimescale(e){return ee(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}getPacket(e,t){return d(this,null,function*(){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),n=er(r,i),s=yield this.fetchPacketForSampleIndex(n,t);return ar(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=W(t.presentationTimestamps,i,e=>e.presentationTimestamp);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id);if(r.sampleIndex+1{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=X(t.presentationTimestamps,e=>t.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=i);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id).samples.findIndex((e,t)=>e.isKeyFrame&&t>r.sampleIndex);if(-1!==t)return{sampleIndex:t,correctSampleFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.samples.findIndex(e=>e.isKeyFrame);return y(-1!==e),{sampleIndex:e,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)})}fetchPacketForSampleIndex(e,t){return d(this,null,function*(){if(-1===e)return null;const i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=ir(i,e);if(!r)return null;let n;if(t.metadataOnly)n=_i;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(Te(t)&&(t=yield t),!t)return null;if(n=Ro(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=yield lr(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);ee.timestamp),f=-1!==h?this.internalTrack.fragmentLookupTable[h]:null,m=W(this.internalTrack.fragmentPositionCache,i,e=>e.startTimestamp),p=-1!==m?this.internalTrack.fragmentPositionCache[m]:null,g=Math.max(null!=(s=null==f?void 0:f.moofOffset)?s:0,null!=(a=null==p?void 0:p.moofOffset)?a:0)||null;let k;for(e?null===g||e.moofOffset>=g?(k=e.moofOffset+e.moofSize,c=e):k=g:k=null!=g?g:0;;){if(c){const e=c.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=l.reader.requestSliceRange(k,8,16);if(Te(e)&&(e=yield e),!e)break;const i=k,s=Di(e);if(!s)break;if("moof"===s.name){c=yield l.readFragment(i);const{sampleIndex:e,correctSampleFound:r}=t(c);if(r)return this.fetchPacketInFragment(c,e,n);-1!==e&&(u=c,d=e)}k=i+s.totalSize}if(f&&(!u||u.moofOffsetd(this,null,function*(){var e,t,i,r,n,s,a;if("avc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("hevc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("vp9"!==this.internalTrack.info.codec||this.internalTrack.info.vp9CodecInfo&&(2!==(a=this.internalTrack.info.vp9CodecInfo).colourPrimaries||2!==a.transferCharacteristics||2!==a.matrixCoefficients))if("av1"!==this.internalTrack.info.codec||this.internalTrack.info.av1CodecInfo&&(e=>2!==e.colourPrimaries||2!==e.transferCharacteristics||2!==e.matrixCoefficients)(this.internalTrack.info.av1CodecInfo)){if("prores"===this.internalTrack.info.codec&&!this.internalTrack.info.proresCodecInfo){const e=yield this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=e&&_t(e.data)}}else{const e=yield this.getFirstPacket({}),t=e&&Et(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const t=yield this.getFirstPacket({}),i=t&&Ct(t.data);i&&(this.internalTrack.info.vp9CodecInfo=u(c({},null!=(e=this.internalTrack.info.vp9CodecInfo)?e:i),{videoFullRangeFlag:i.videoFullRangeFlag,colourPrimaries:i.colourPrimaries,transferCharacteristics:i.transferCharacteristics,matrixCoefficients:i.matrixCoefficients}))}else{const e=yield this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=e&&pt(e.data)}else{const e=yield this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&st(e.data)}if(!D(this.internalTrack.info.colorSpace)){const e=fi(this.internalTrack.info);null!=(t=this.internalTrack.info.colorSpace).primaries||(t.primaries=e.primaries),null!=(i=this.internalTrack.info.colorSpace).transfer||(i.transfer=e.transfer),null!=(r=this.internalTrack.info.colorSpace).matrix||(r.matrix=e.matrix),null!=(n=this.internalTrack.info.colorSpace).fullRange||(n.fullRange=e.fullRange)}const o={codec:hi(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(s=this.internalTrack.info.codecDescription)?s:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class Zi extends Yi{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return d(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>d(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Zt(e.data)}return{codec:mi(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const er=(e,t)=>{if(e.presentationTimestamps){const i=W(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=W(e.sampleTimingEntries,t,e=>e.startDecodeTimestamp);if(-1===i)return-1;const r=e.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},tr=(e,t)=>{var i;if(!e.keySampleIndices)return er(e,t);if(e.presentationTimestamps){const i=W(e.presentationTimestamps,t,e=>e.presentationTimestamp);if(-1===i)return-1;for(let t=i;t>=0;t--){const i=e.presentationTimestamps[t].sampleIndex;if(-1!==q(e.keySampleIndices,i,e=>e))return i}return-1}{const r=er(e,t),n=W(e.keySampleIndices,r,e=>e);return null!=(i=e.keySampleIndices[n])?i:-1}},ir=(e,t)=>{const i=W(e.sampleTimingEntries,t,e=>e.startIndex),r=e.sampleTimingEntries[i];if(!r||r.startIndex+r.count<=t)return null;let n=r.startDecodeTimestamp+(t-r.startIndex)*r.delta;const s=W(e.sampleCompositionTimeOffsets,t,e=>e.startIndex),a=e.sampleCompositionTimeOffsets[s];a&&t-a.startIndexe.startSampleIndex),c=e.sampleToChunk[l];y(c);const u=c.startChunkIndex+Math.floor((t-c.startSampleIndex)/c.samplesPerChunk),d=e.chunkOffsets[u],h=c.startSampleIndex+(u-c.startChunkIndex)*c.samplesPerChunk;let f=0,m=d;if(1===e.sampleSizes.length)m+=o*(t-h),f+=o*c.samplesPerChunk;else for(let g=h;ge)}},rr=(e,t)=>{var i;if(!e.keySampleIndices)return t+1;const r=W(e.keySampleIndices,t,e=>e);return null!=(i=e.keySampleIndices[r+1])?i:-1},nr=(e,t)=>{e.startTimestamp+=t,e.endTimestamp+=t;for(const i of e.samples)i.presentationTimestamp+=t;for(const i of e.presentationTimestamps)i.presentationTimestamp+=t},sr=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},ar=e=>0===e.sampleSizes.length,or=e=>{var t,i,r;return e.currentFragmentState?null!=(i=(t=e.currentFragmentState).encryptionAuxInfo)?i:t.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}:null!=(r=e.encryptionAuxInfo)?r:e.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}},lr=(e,t,i)=>d(null,null,function*(){if(i.resolved)return i.resolved;if(null===i.offset||0===i.sampleCount)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let r=0;if(i.defaultSampleInfoSize>0)r=i.defaultSampleInfoSize*i.sampleCount;else{y(i.sampleSizes);for(let e=0;e0?i.defaultSampleInfoSize:i.sampleSizes[e],o=new Uint8Array(16);s>0?o.set(Ro(n,s),0):o.set(t.defaultConstantIv,0);let l=null;if(r>s){const e=Do(n);l=[];for(let t=0;te.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,ur=(e,t,i,r)=>d(null,null,function*(){var n;y(e.encryptionInfo);const s=e.encryptionInfo;y(null!==s.defaultKid);const a=s.defaultKid;let o;const l=e.demuxer.decryptionKeyCache.get(a);if(l)o=yield l;else{if(!(null==(n=e.demuxer.input._formatOptions.isobmff)?void 0:n.resolveKeyId))throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const t=d(null,null,function*(){let t=e.demuxer.psshBoxes;if(r){t=[...t,...r.psshBoxes].filter(e=>null===e.keyIds||e.keyIds.includes(a));for(let e=0;e{y(e.length%2===0);const t=new Uint8Array(e.length/2);for(let i=0;id(null,null,function*(){const n=new Uint8Array(16);n.set(i.iv,0);const s=yield crypto.subtle.importKey("raw",e,{name:"AES-CTR"},!1,["decrypt"]),a=e=>d(null,null,function*(){const t=yield crypto.subtle.decrypt({name:"AES-CTR",counter:n,length:64},s,e);return new Uint8Array(t)});if(!i.subsamples)return a(r);y(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const o=fr(i.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock);let l=0;for(const e of o)for(const t of e.perSubsample)l+=t.length;const c=new Uint8Array(l);let u=0;for(const e of o)for(const t of e.perSubsample)c.set(r.subarray(t.offset,t.offset+t.length),u),u+=t.length;const h=yield a(c),f=new Uint8Array(r);let m=0;for(const e of o)for(const t of e.perSubsample)f.set(h.subarray(m,m+t.length),t.offset),m+=t.length;return f}),hr=(e,t,i,r)=>{const n=new Gi;n.init({key:e,iv:i.iv});const s=t.defaultCryptByteBlock,a=t.defaultSkipByteBlock;if(y(null!==s&&null!==a),!i.subsamples){const e=new Uint8Array(r),t=Math.floor(r.length/16);for(let i=0;i{const r=[],n=0!==t||0!==i;let s=0;for(const a of e){s+=a.clearLen;const e=[];if(n){let r=a.protectedLen,n=s;for(;r>0&&!(r<16*t);){const s=16*t;e.push({offset:n,length:s}),n+=s,r-=s;const a=Math.min(16*i,r);n+=a,r-=a}s+=a.protectedLen}else a.protectedLen>0&&e.push({offset:s,length:a.protectedLen}),s+=a.protectedLen;r.push({perSubsample:e})}return r};var mr,pr;(pr=mr||(mr={}))[pr.EBML=440786851]="EBML",pr[pr.EBMLVersion=17030]="EBMLVersion",pr[pr.EBMLReadVersion=17143]="EBMLReadVersion",pr[pr.EBMLMaxIDLength=17138]="EBMLMaxIDLength",pr[pr.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",pr[pr.DocType=17026]="DocType",pr[pr.DocTypeVersion=17031]="DocTypeVersion",pr[pr.DocTypeReadVersion=17029]="DocTypeReadVersion",pr[pr.Void=236]="Void",pr[pr.Segment=408125543]="Segment",pr[pr.SeekHead=290298740]="SeekHead",pr[pr.Seek=19899]="Seek",pr[pr.SeekID=21419]="SeekID",pr[pr.SeekPosition=21420]="SeekPosition",pr[pr.Duration=17545]="Duration",pr[pr.Info=357149030]="Info",pr[pr.TimestampScale=2807729]="TimestampScale",pr[pr.MuxingApp=19840]="MuxingApp",pr[pr.WritingApp=22337]="WritingApp",pr[pr.Tracks=374648427]="Tracks",pr[pr.TrackEntry=174]="TrackEntry",pr[pr.TrackNumber=215]="TrackNumber",pr[pr.TrackUID=29637]="TrackUID",pr[pr.TrackType=131]="TrackType",pr[pr.FlagEnabled=185]="FlagEnabled",pr[pr.FlagDefault=136]="FlagDefault",pr[pr.FlagForced=21930]="FlagForced",pr[pr.FlagOriginal=21934]="FlagOriginal",pr[pr.FlagHearingImpaired=21931]="FlagHearingImpaired",pr[pr.FlagVisualImpaired=21932]="FlagVisualImpaired",pr[pr.FlagCommentary=21935]="FlagCommentary",pr[pr.FlagLacing=156]="FlagLacing",pr[pr.Name=21358]="Name",pr[pr.Language=2274716]="Language",pr[pr.LanguageBCP47=2274717]="LanguageBCP47",pr[pr.CodecID=134]="CodecID",pr[pr.CodecPrivate=25506]="CodecPrivate",pr[pr.CodecDelay=22186]="CodecDelay",pr[pr.SeekPreRoll=22203]="SeekPreRoll",pr[pr.DefaultDuration=2352003]="DefaultDuration",pr[pr.Video=224]="Video",pr[pr.PixelWidth=176]="PixelWidth",pr[pr.PixelHeight=186]="PixelHeight",pr[pr.DisplayWidth=21680]="DisplayWidth",pr[pr.DisplayHeight=21690]="DisplayHeight",pr[pr.DisplayUnit=21682]="DisplayUnit",pr[pr.AlphaMode=21440]="AlphaMode",pr[pr.Audio=225]="Audio",pr[pr.SamplingFrequency=181]="SamplingFrequency",pr[pr.Channels=159]="Channels",pr[pr.BitDepth=25188]="BitDepth",pr[pr.SimpleBlock=163]="SimpleBlock",pr[pr.BlockGroup=160]="BlockGroup",pr[pr.Block=161]="Block",pr[pr.BlockAdditions=30113]="BlockAdditions",pr[pr.BlockMore=166]="BlockMore",pr[pr.BlockAdditional=165]="BlockAdditional",pr[pr.BlockAddID=238]="BlockAddID",pr[pr.BlockDuration=155]="BlockDuration",pr[pr.ReferenceBlock=251]="ReferenceBlock",pr[pr.Cluster=524531317]="Cluster",pr[pr.Timestamp=231]="Timestamp",pr[pr.Cues=475249515]="Cues",pr[pr.CuePoint=187]="CuePoint",pr[pr.CueTime=179]="CueTime",pr[pr.CueTrackPositions=183]="CueTrackPositions",pr[pr.CueTrack=247]="CueTrack",pr[pr.CueClusterPosition=241]="CueClusterPosition",pr[pr.Colour=21936]="Colour",pr[pr.MatrixCoefficients=21937]="MatrixCoefficients",pr[pr.TransferCharacteristics=21946]="TransferCharacteristics",pr[pr.Primaries=21947]="Primaries",pr[pr.Range=21945]="Range",pr[pr.Projection=30320]="Projection",pr[pr.ProjectionType=30321]="ProjectionType",pr[pr.ProjectionPoseRoll=30325]="ProjectionPoseRoll",pr[pr.Attachments=423732329]="Attachments",pr[pr.AttachedFile=24999]="AttachedFile",pr[pr.FileDescription=18046]="FileDescription",pr[pr.FileName=18030]="FileName",pr[pr.FileMediaType=18016]="FileMediaType",pr[pr.FileData=18012]="FileData",pr[pr.FileUID=18094]="FileUID",pr[pr.Chapters=272869232]="Chapters",pr[pr.Tags=307544935]="Tags",pr[pr.Tag=29555]="Tag",pr[pr.Targets=25536]="Targets",pr[pr.TargetTypeValue=26826]="TargetTypeValue",pr[pr.TargetType=25546]="TargetType",pr[pr.TagTrackUID=25541]="TagTrackUID",pr[pr.TagEditionUID=25545]="TagEditionUID",pr[pr.TagChapterUID=25540]="TagChapterUID",pr[pr.TagAttachmentUID=25542]="TagAttachmentUID",pr[pr.SimpleTag=26568]="SimpleTag",pr[pr.TagName=17827]="TagName",pr[pr.TagLanguage=17530]="TagLanguage",pr[pr.TagString=17543]="TagString",pr[pr.TagBinary=17541]="TagBinary",pr[pr.ContentEncodings=28032]="ContentEncodings",pr[pr.ContentEncoding=25152]="ContentEncoding",pr[pr.ContentEncodingOrder=20529]="ContentEncodingOrder",pr[pr.ContentEncodingScope=20530]="ContentEncodingScope",pr[pr.ContentCompression=20532]="ContentCompression",pr[pr.ContentCompAlgo=16980]="ContentCompAlgo",pr[pr.ContentCompSettings=16981]="ContentCompSettings",pr[pr.ContentEncryption=20533]="ContentEncryption";const gr=[mr.EBML,mr.Segment],kr=[mr.SeekHead,mr.Info,mr.Cluster,mr.Tracks,mr.Cues,mr.Attachments,mr.Chapters,mr.Tags],yr=[...gr,...kr],br=16,Tr=e=>{if(e.remainingLength<1)return null;const t=Fo(e);if(e.skip(-1),0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;return e.remainingLength{if(e.remainingLength<1)return null;const t=Fo(e);if(0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;if(e.remainingLength{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let i=0;for(let r=0;r{const t=Tr(e);if(null===t)return null;if(e.remainingLength{if(e.remainingLength<1)return null;if(255===Fo(e))return;e.skip(-1);const t=vr(e);return null===t?null:72057594037927940!==t?t:void 0},Ir=e=>{y(e.remainingLength>=2);const t=wr(e);if(null===t)return null;const i=Pr(e);return null===i?null:{id:t,size:i}},xr=(e,t)=>{const i=Ro(e,t);let r=0;for(;r{const i=Ro(e,t);let r=0;for(;r{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?jo(e):Ko(e)},Er=(e,t,i,r)=>d(null,null,function*(){const n=new Set(i);let s=t;for(;null===r||ss?r:s,found:!1}}),_r=(e,t,i,r)=>d(null,null,function*(){const n=o(2,16),s=new Set(i);let a=t;for(;ae.tracks.map(e=>e.trackBacking))})}getMimeType(){return d(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings.filter(Boolean))].join(", ")}"`);return t})({isWebM:this.isWebM,hasVideo:this.segments.some(e=>e.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)})),hasAudio:this.segments.some(e=>e.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)})),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return d(this,null,function*(){yield this.readMetadata();for(const t of this.segments)t.metadataTagsCollected||(null!==this.reader.fileSize&&(yield this.loadSegmentMetadata(t)),t.metadataTagsCollected=!0);let e={};for(const t of this.segments)e=c(c({},e),t.metadataTags);return e})}readMetadata(){var e;return null!=(e=this.readMetadataPromise)?e:this.readMetadataPromise=(()=>d(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,2,br);if(Te(t)&&(t=yield t),!t)break;const i=Ir(t);if(!i)break;const r=i.id;let n=i.size;const s=t.filePos;if(r===mr.EBML){jr(n);let e=this.reader.requestSlice(s,n);if(Te(e)&&(e=yield e),!e)break;this.readContiguousElements(e)}else if(r===mr.Segment){if(yield this.readSegment(s,n),void 0===n)break;if(null===this.reader.fileSize)break}else if(r===mr.Cluster){if(null===this.reader.fileSize)break;if(void 0===n){n=(yield Er(this.reader,s,yr,this.reader.fileSize)).pos-s}const e=T(this.segments);e&&(e.elementEndPos=s+n)}jr(n),e=s+n}}))()}readSegment(e,t){return d(this,null,function*(){var i;this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:void 0===t?null:e+t,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let r=e;for(;null===this.currentSegment.elementEndPos||re.id===s);if(-1!==l){const e=Jr[l].flag;this.currentSegment[e]=!0,jr(a);let t=this.reader.requestSlice(o,a);Te(t)&&(t=yield t),t&&this.readContiguousElements(t)}else if(s===mr.Tags||s===mr.Attachments){s===mr.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,jr(a);let e=this.reader.requestSlice(o,a);Te(e)&&(e=yield e),e&&this.readContiguousElements(e)}else if(s===mr.Cluster){this.currentSegment.clusterSeekStartPos=t;break}if(void 0===a)break;r=o+a}if(this.currentSegment.seekEntries.sort((e,t)=>e.segmentPosition-t.segmentPosition),null!==this.reader.fileSize)for(const t of this.currentSegment.seekEntries){const i=Jr.find(e=>e.id===t.id);if(!i)continue;if(this.currentSegment[i.flag])continue;let r=this.reader.requestSliceRange(e+t.segmentPosition,2,br);if(Te(r)&&(r=yield r),!r)continue;const n=Ir(r);if(!n)continue;const{id:s,size:a}=n;if(s!==i.id)continue;jr(a),this.currentSegment[i.flag]=!0;let o=this.reader.requestSlice(r.filePos,a);Te(o)&&(o=yield o),o&&this.readContiguousElements(o)}-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3);for(const e of this.currentSegment.tracks)null!==e.defaultDurationNs&&(e.defaultDuration=this.currentSegment.timestampFactor*e.defaultDurationNs/1e9);const n=new Map(this.currentSegment.tracks.map(e=>[e.id,e]));for(const e of this.currentSegment.cuePoints){const t=n.get(e.trackId);t&&t.cuePoints.push(e)}for(const e of this.currentSegment.tracks){e.cuePoints.sort((e,t)=>e.time-t.time);for(let t=0;ta&&(a=e.cuePoints.length,s=e);for(const e of this.currentSegment.tracks)0===e.cuePoints.length&&(e.cuePoints=s.cuePoints);this.currentSegment=null})}readCluster(e,t){return d(this,null,function*(){var i;if((null==(i=t.lastReadCluster)?void 0:i.elementStartPos)===e)return t.lastReadCluster;let r=this.reader.requestSliceRange(e,2,br);Te(r)&&(r=yield r),y(r);const n=e,s=Ir(r);y(s);y(s.id===mr.Cluster);let a=s.size;const o=r.filePos;if(void 0===a){a=(yield Er(this.reader,o,yr,t.elementEndPos)).pos-o}let l=this.reader.requestSlice(o,a);Te(l)&&(l=yield l);const c={segment:t,elementStartPos:n,elementEndPos:o+a,dataStartPos:o,timestamp:-1,trackData:new Map};if(this.currentCluster=c,l){const e=this.readContiguousElements(l,yr);c.elementEndPos=e}for(const[,e]of c.trackData){const t=e.track;y(e.blocks.length>0);let i=!1;for(let n=0;n({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp);for(let n=0;n({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp));const r=e.blocks[e.presentationTimestamps[0].blockIndex],s=e.blocks[T(e.presentationTimestamps).blockIndex];e.startTimestamp=r.timestamp,e.endTimestamp=s.timestamp+s.duration;const a=W(t.clusterPositionCache,e.startTimestamp,e=>e.startTimestamp);-1!==a&&t.clusterPositionCache[a].elementStartPos===n||t.clusterPositionCache.splice(a+1,0,{elementStartPos:c.elementStartPos,startTimestamp:e.startTimestamp})}return t.lastReadCluster=c,c})}getTrackDataInCluster(e,t){let i=e.trackData.get(t);if(!i){const r=e.segment.tracks.find(e=>e.id===t);if(!r)return null;i={track:r,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,i)}return i}expandLacedBlocks(e,t){var i;for(let r=0;r=2;){const i=e.filePos;if(!this.traverseElement(e,t))return i}return e.filePos}traverseElement(e,t){var i,r,n,s,a,o,l,d,h,f,m,p,g,k,T,v,S,w,P,I,C,B,_,F,D,N,O,L,z,U,q,W,H,V,j,K,X,$,G,Q,Y,J,ee,te,ie,re,ne,se,oe,le,ce;const ue=Ir(e);if(!ue)return!1;if(t&&t.includes(ue.id))return!1;const{id:de,size:he}=ue,fe=e.filePos;switch(jr(he),de){case mr.DocType:this.isWebM="webm"===xr(e,he);break;case mr.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(fe,he)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case mr.SeekID:{const t=null==(i=this.currentSegment)?void 0:i.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=Sr(e,he)}break;case mr.SeekPosition:{const t=null==(r=this.currentSegment)?void 0:r.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=Sr(e,he)}break;case mr.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=Sr(e,he),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case mr.Duration:if(!this.currentSegment)break;this.currentSegment.duration=Br(e,he);break;case mr.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:u(c({},Le),{primary:!1}),trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(fe,he)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>{var t;return"decompress"!==(null==(t=e.data)?void 0:t.type)||e.scope!==$r.Block||e.data.algorithm!==Qr.HeaderStripping})&&(Me._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){const e=this.currentTrack.codecId.indexOf("/"),t=-1===e?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,e);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,null!==this.currentTrack.info.displayWidth&&null!==this.currentTrack.info.displayHeight){const e=this.currentTrack.info.displayWidth*this.currentTrack.info.height,t=this.currentTrack.info.displayHeight*this.currentTrack.info.width;e>0&&t>0&&(e>t?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*e/t):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*t/e))}if(this.currentTrack.codecId===Rr)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===Fr)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===Ar)this.currentTrack.info.codec="vp8";else if(t===Dr)this.currentTrack.info.codec="vp9";else if(t===Mr)this.currentTrack.info.codec="av1";else if(t===Nr){const e=this.currentTrack.codecPrivate?x.decode(this.currentTrack.codecPrivate):"";ui.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new rn(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===Or?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===Lr?this.currentTrack.info.codec="mp3":t===zr?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=pi):t===Ur?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===qr?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Wr?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Hr?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Vr?(this.currentTrack.info.codec="dts","A_DTS/EXPRESS"===this.currentTrack.codecId?this.currentTrack.info.dtsFormat="dtse":"A_DTS/LOSSLESS"===this.currentTrack.codecId&&(this.currentTrack.info.dtsFormat="dtsl")):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));const e=this.currentTrack;this.currentTrack.trackBacking=new nn(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case mr.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=Sr(e,he);break;case mr.TrackType:{if(!this.currentTrack)break;const t=Sr(e,he);1===t?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:c({},M),alphaMode:!1,proresFormat:null}:2===t&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case mr.FlagEnabled:if(!this.currentTrack)break;Sr(e,he)||(this.currentTrack=null);break;case mr.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!Sr(e,he);break;case mr.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!Sr(e,he);break;case mr.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!Sr(e,he);break;case mr.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!Sr(e,he);break;case mr.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!Sr(e,he);break;case mr.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!Sr(e,he);break;case mr.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=xr(e,he);break;case mr.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=Ro(e,he);break;case mr.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=Sr(e,he);break;case mr.Name:if(!this.currentTrack)break;this.currentTrack.name=Cr(e,he);break;case mr.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=xr(e,he),ae(this.currentTrack.languageCode)||(this.currentTrack.languageCode=Z);break;case mr.LanguageBCP47:{if(!this.currentTrack)break;const t=xr(e,he).split("-")[0];this.currentTrack.languageCode=t||Z,this.currentTrack.hasLanguageBcp47=!0}break;case mr.Video:if("video"!==(null==(s=null==(n=this.currentTrack)?void 0:n.info)?void 0:s.type))break;this.readContiguousElements(e.slice(fe,he));break;case mr.PixelWidth:if("video"!==(null==(o=null==(a=this.currentTrack)?void 0:a.info)?void 0:o.type))break;this.currentTrack.info.width=Sr(e,he);break;case mr.PixelHeight:if("video"!==(null==(d=null==(l=this.currentTrack)?void 0:l.info)?void 0:d.type))break;this.currentTrack.info.height=Sr(e,he);break;case mr.DisplayWidth:if("video"!==(null==(f=null==(h=this.currentTrack)?void 0:h.info)?void 0:f.type))break;this.currentTrack.info.displayWidth=Sr(e,he);break;case mr.DisplayHeight:if("video"!==(null==(p=null==(m=this.currentTrack)?void 0:m.info)?void 0:p.type))break;this.currentTrack.info.displayHeight=Sr(e,he);break;case mr.DisplayUnit:if("video"!==(null==(k=null==(g=this.currentTrack)?void 0:g.info)?void 0:k.type))break;this.currentTrack.info.displayUnit=Sr(e,he);break;case mr.AlphaMode:if("video"!==(null==(v=null==(T=this.currentTrack)?void 0:T.info)?void 0:v.type))break;this.currentTrack.info.alphaMode=1===Sr(e,he);break;case mr.Colour:if("video"!==(null==(w=null==(S=this.currentTrack)?void 0:S.info)?void 0:w.type))break;this.readContiguousElements(e.slice(fe,he));break;case mr.MatrixCoefficients:{if("video"!==(null==(I=null==(P=this.currentTrack)?void 0:P.info)?void 0:I.type))break;const t=Sr(e,he),i=A[t];this.currentTrack.info.colorSpace.matrix=i}break;case mr.Range:{if("video"!==(null==(B=null==(C=this.currentTrack)?void 0:C.info)?void 0:B.type))break;const t=Sr(e,he);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case mr.TransferCharacteristics:{if("video"!==(null==(F=null==(_=this.currentTrack)?void 0:_.info)?void 0:F.type))break;const t=Sr(e,he),i=R[t];this.currentTrack.info.colorSpace.transfer=i}break;case mr.Primaries:{if("video"!==(null==(N=null==(D=this.currentTrack)?void 0:D.info)?void 0:N.type))break;const t=Sr(e,he),i=E[t];this.currentTrack.info.colorSpace.primaries=i}break;case mr.Projection:if("video"!==(null==(L=null==(O=this.currentTrack)?void 0:O.info)?void 0:L.type))break;this.readContiguousElements(e.slice(fe,he));break;case mr.ProjectionPoseRoll:{if("video"!==(null==(U=null==(z=this.currentTrack)?void 0:z.info)?void 0:U.type))break;const t=-Br(e,he);try{this.currentTrack.info.rotation=b(t)}catch(me){}}break;case mr.Audio:if("audio"!==(null==(W=null==(q=this.currentTrack)?void 0:q.info)?void 0:W.type))break;this.readContiguousElements(e.slice(fe,he));break;case mr.SamplingFrequency:if("audio"!==(null==(V=null==(H=this.currentTrack)?void 0:H.info)?void 0:V.type))break;this.currentTrack.info.sampleRate=Br(e,he);break;case mr.Channels:if("audio"!==(null==(K=null==(j=this.currentTrack)?void 0:j.info)?void 0:K.type))break;this.currentTrack.info.numberOfChannels=Sr(e,he);break;case mr.BitDepth:if("audio"!==(null==($=null==(X=this.currentTrack)?void 0:X.info)?void 0:$.type))break;this.currentTrack.info.bitDepth=Sr(e,he);break;case mr.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(fe,he)),this.currentCueTime=null;break;case mr.CueTime:this.currentCueTime=Sr(e,he);break;case mr.CueTrackPositions:{if(null===this.currentCueTime)break;y(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(fe,he)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case mr.CueTrack:{const t=null==(G=this.currentSegment)?void 0:G.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=Sr(e,he)}break;case mr.CueClusterPosition:{const t=null==(Q=this.currentSegment)?void 0:Q.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;y(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+Sr(e,he)}break;case mr.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=Sr(e,he);break;case mr.SimpleBlock:{if(!this.currentCluster)break;const t=vr(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=No(e),n=Fo(e),s=n>>1&3;let a=!!(128&n);"audio"===(null==(Y=i.track.info)?void 0:Y.type)&&i.track.info.codec&&(a=!0);const o=Ro(e,he-(e.filePos-fe)),l=i.track.decodingInstructions.length>0;i.blocks.push({timestamp:r,duration:0,isKeyFrame:a,data:o,lacing:s,decoded:!l,postProcessed:!1,mainAdditional:null})}break;case mr.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(fe,he)),this.currentBlock=null;break;case mr.Block:{if(!this.currentCluster)break;const t=vr(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=No(e),n=Fo(e)>>1&3,s=Ro(e,he-(e.filePos-fe)),a=i.track.decodingInstructions.length>0;this.currentBlock={timestamp:r,duration:0,isKeyFrame:!0,data:s,lacing:n,decoded:!a,postProcessed:!1,mainAdditional:null},i.blocks.push(this.currentBlock)}break;case mr.BlockAdditions:this.readContiguousElements(e.slice(fe,he));break;case mr.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(fe,he)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case mr.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=Ro(e,he);break;case mr.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=Sr(e,he);break;case mr.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=Sr(e,he);break;case mr.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case mr.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(fe,he));break;case mr.Targets:this.readContiguousElements(e.slice(fe,he));break;case mr.TargetTypeValue:50!==Sr(e,he)&&(this.currentTagTargetIsMovie=!1);break;case mr.TagTrackUID:case mr.TagEditionUID:case mr.TagChapterUID:case mr.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case mr.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(fe,he));break;case mr.TagName:this.currentSimpleTagName=Cr(e,he);break;case mr.TagString:{if(!this.currentSimpleTagName)break;const t=Cr(e,he);this.processTagValue(this.currentSimpleTagName,t)}break;case mr.TagBinary:{if(!this.currentSimpleTagName)break;const t=Ro(e,he);this.processTagValue(this.currentSimpleTagName,t)}break;case mr.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(fe,he));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(null!=t.raw||(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new Oe(this.currentAttachedFile.fileData,null!=(J=this.currentAttachedFile.fileMediaType)?J:void 0,null!=(ee=this.currentAttachedFile.fileName)?ee:void 0,null!=(te=this.currentAttachedFile.fileDescription)?te:void 0)),(null==(ie=this.currentAttachedFile.fileMediaType)?void 0:ie.startsWith("image/"))&&this.currentAttachedFile.fileData){const e=this.currentAttachedFile.fileName;let i="unknown";if(e){const t=e.toLowerCase();t.startsWith("cover.")?i="coverFront":t.startsWith("back.")&&(i="coverBack")}null!=t.images||(t.images=[]),t.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:i,name:null!=(re=this.currentAttachedFile.fileName)?re:void 0,description:null!=(ne=this.currentAttachedFile.fileDescription)?ne:void 0})}this.currentAttachedFile=null}break;case mr.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=((e,t)=>{if(t<1)throw new Error("Bad unsigned int size "+t);let i=BigInt("0");for(let r=0;rt.order-e.order);break;case mr.ContentEncoding:this.currentDecodingInstruction={order:0,scope:$r.Block,data:null},this.readContiguousElements(e.slice(fe,he)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case mr.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=Sr(e,he);break;case mr.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=Sr(e,he);break;case mr.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:Qr.Zlib,settings:null},this.readContiguousElements(e.slice(fe,he));break;case mr.ContentCompAlgo:if("decompress"!==(null==(oe=null==(se=this.currentDecodingInstruction)?void 0:se.data)?void 0:oe.type))break;this.currentDecodingInstruction.data.algorithm=Sr(e,he);break;case mr.ContentCompSettings:if("decompress"!==(null==(ce=null==(le=this.currentDecodingInstruction)?void 0:le.data)?void 0:ce.type))break;this.currentDecodingInstruction.data.settings=Ro(e,he);break;case mr.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=fe+he,!0}decodeBlockData(e,t){y(e.decodingInstructions.length>0);let i=t;for(const r of e.decodingInstructions)if(y(r.data),"decompress"===r.data.type)if(r.data.algorithm===Qr.HeaderStripping)if(r.data.settings&&r.data.settings.length>0){const e=r.data.settings,t=new Uint8Array(e.length+i.length);t.set(e,0),t.set(i,e.length),i=t}return i}processTagValue(e,t){var i,r;if(!(null==(i=this.currentSegment)?void 0:i.metadataTags))return;const n=this.currentSegment.metadataTags;if(null!=n.raw||(n.raw={}),null!=(r=n.raw)[e]||(r[e]=t),"string"===typeof t)switch(e.toLowerCase()){case"title":null!=n.title||(n.title=t);break;case"description":null!=n.description||(n.description=t);break;case"artist":null!=n.artist||(n.artist=t);break;case"album":null!=n.album||(n.album=t);break;case"album_artist":null!=n.albumArtist||(n.albumArtist=t);break;case"genre":null!=n.genre||(n.genre=t);break;case"comment":null!=n.comment||(n.comment=t);break;case"lyrics":null!=n.lyrics||(n.lyrics=t);break;case"date":{const e=new Date(t);Number.isNaN(e.getTime())||null!=n.date||(n.date=e)}break;case"track_number":case"part_number":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.trackNumber||(n.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.tracksTotal||(n.tracksTotal=r))}break;case"disc_number":case"disc":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.discNumber||(n.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.discsTotal||(n.discsTotal=r))}}}getDurationFromMetadata(e){return d(this,null,function*(){if(e.duration<=0)return null;let t=null;for(const r of e.tracks){y(r.trackBacking);const e=yield r.trackBacking.getFirstPacket({metadataOnly:!0});e&&(t=Math.min(null!=t?t:1/0,e.timestamp))}let i=e.duration/e.timestampFactor;return i+=null!=t?t:0,i})}}class tn{constructor(e){this.internalTrack=e,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.segments)for(const e of r.tracks)if(e.trackBacking.getType()===t&&i++,e===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return d(this,null,function*(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)})}getLiveRefreshInterval(){return d(this,null,function*(){return null})}getFirstPacket(e){return d(this,null,function*(){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,e)})}intoTimescale(e){return ee(e*this.internalTrack.segment.timestampFactor)}getPacket(e,t){return d(this,null,function*(){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=W(t.presentationTimestamps,i,e=>e.timestamp);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id);if(i.blockIndex+1{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=X(t.presentationTimestamps,e=>t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=i);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id).blocks.findIndex((e,t)=>e.isKeyFrame&&t>i.blockIndex);if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.blocks.findIndex(e=>e.isKeyFrame);return y(-1!==e),{blockIndex:e,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)})}fetchPacketInCluster(e,t,i){return d(this,null,function*(){var r,n;if(-1===t)return null;const s=e.trackData.get(this.internalTrack.id).blocks[t];if(y(s),s.decoded||(s.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,s.data),s.decoded=!0),!s.postProcessed){if("prores"===(null==(r=this.internalTrack.info)?void 0:r.codec)){if(!(s.data.length>=8&&105===s.data[4]&&99===s.data[5]&&112===s.data[6]&&102===s.data[7])){const e=new Uint8Array(s.data.length+8);I(e).setUint32(0,e.length,!1),e[4]=105,e[5]=99,e[6]=112,e[7]=102,e.set(s.data,8),s.data=e}}s.postProcessed=!0}const a=i.metadataOnly?_i:s.data,o=s.timestamp/this.internalTrack.segment.timestampFactor,l=s.duration/this.internalTrack.segment.timestampFactor,c={};s.mainAdditional&&"video"===(null==(n=this.internalTrack.info)?void 0:n.type)&&this.internalTrack.info.alphaMode&&(c.alpha=i.metadataOnly?_i:s.mainAdditional,c.alphaByteLength=s.mainAdditional.byteLength);const u=new Ri(a,s.isKeyFrame?"key":"delta",o,l,e.dataStartPos+t,s.data.byteLength,c);return this.packetToClusterLocation.set(u,{cluster:e,blockIndex:t}),u})}performClusterLookup(e,t,i,r,n){return d(this,null,function*(){var s,a,o,l;const{demuxer:c,segment:u}=this.internalTrack;let d=null,h=null,f=-1;if(e){const{blockIndex:i,correctBlockFound:r}=t(e);if(r)return this.fetchPacketInCluster(e,i,n);-1!==i&&(h=e,f=i)}const m=W(this.internalTrack.cuePoints,i,e=>e.time),p=-1!==m?this.internalTrack.cuePoints[m]:null,g=W(this.internalTrack.clusterPositionCache,i,e=>e.startTimestamp),k=-1!==g?this.internalTrack.clusterPositionCache[g]:null,b=Math.max(null!=(s=null==p?void 0:p.clusterPosition)?s:0,null!=(a=null==k?void 0:k.elementStartPos)?a:0)||null;let T;for(e?null===b||e.elementStartPos>=b?(T=e.elementEndPos,d=e):T=b:T=null!=b?b:u.clusterSeekStartPos;null===u.elementEndPos||T<=u.elementEndPos-2;){if(d){const e=d.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=c.reader.requestSliceRange(T,2,br);if(Te(e)&&(e=yield e),!e)break;const i=T,s=Ir(e);if(!s||!kr.includes(s.id)&&s.id!==mr.Void){const e=yield _r(c.reader,i,kr,Math.min(null!=(o=u.elementEndPos)?o:1/0,i+Zr));if(e){T=e;continue}break}const a=s.id;let l=s.size;const m=e.filePos;if(a===mr.Cluster){d=yield c.readCluster(i,u),l=d.elementEndPos-m;const{blockIndex:e,correctBlockFound:r}=t(d);if(r)return this.fetchPacketInCluster(d,e,n);-1!==e&&(h=d,f=e)}if(void 0===l){y(a!==mr.Cluster);l=(yield Er(c.reader,m,yr,u.elementEndPos)).pos-m}const p=m+l;if(null===u.elementEndPos){let e=c.reader.requestSliceRange(p,2,br);if(Te(e)&&(e=yield e),!e)break;if(wr(e)===mr.Segment){u.elementEndPos=p;break}}T=p}if(p&&(!h||h.elementStartPosd(this,null,function*(){var e,t,i,r,n;let s=null;("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"prores"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription)&&(s=yield this.getFirstPacket({}));const a={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:"avc"===this.internalTrack.info.codec&&s?st(s.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&s?pt(s.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&s?Ct(s.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&s?Et(s.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&s?_t(s.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!D(this.internalTrack.info.colorSpace)){const n=fi(a);null!=(e=this.internalTrack.info.colorSpace).primaries||(e.primaries=n.primaries),null!=(t=this.internalTrack.info.colorSpace).transfer||(t.transfer=n.transfer),null!=(i=this.internalTrack.info.colorSpace).matrix||(i.matrix=n.matrix),null!=(r=this.internalTrack.info.colorSpace).fullRange||(r.fullRange=n.fullRange)}const o={codec:hi(a),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(n=this.internalTrack.info.codecDescription)?n:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class nn extends tn{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return d(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>d(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Zt(e.data)}return{codec:mi({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const sn=(e,t,i,r=null)=>d(null,null,function*(){const n=o(2,16);let s=t;for(;null===i||s=4;){const t=a.filePos,i=Lo(a),n=null!==e.fileSize?e.fileSize-s:null,o=Pi(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&Bi(o.header.channel)===Bi(r.channel)))return{header:o.header,startPos:s};a.filePos=t+o.bytesAdvanced,s=a.filePos}}return null});class an extends Ei{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.xingFrameHeader=null,this.xingFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new O,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return d(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>d(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new on(this)]}))()})}advanceReader(){return d(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,el);if(Te(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=nl(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=yield sn(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e)return void(this.lastSampleLoaded=!0);const t=e.header;this.lastLoadedPos=e.startPos+t.totalSize-1;const i=wi(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(Te(r)&&(r=yield r),r){const n=Lo(r);if(n===vi||n===Si){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(Te(t)&&(t=yield t),t){const e=Ro(t,12),i=I(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&xi.FrameCount?i.getUint32(4,!1):null,fileSize:r&xi.FileSize?i.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=t,this.firstFrameHeaderPos=e.startPos);const n=t.audioSamplesInFrame/this.firstFrameHeader.sampleRate,s={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:n,dataStart:e.startPos,dataSize:t.totalSize};this.loadedSamples.push(s),this.nextTimestampInSamples+=t.audioSamplesInFrame})}getMimeType(){return d(this,null,function*(){return"audio/mpeg"})}getTrackBackings(){return d(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return d(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0,t=!1;for(;;){let i=this.reader.requestSlice(e,el);if(Te(i)&&(i=yield i),!i)break;const r=nl(i);if(!r)break;t=!0;let n=this.reader.requestSlice(i.filePos,r.size);if(Te(n)&&(n=yield n),!n)break;sl(n,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=Zo){let e=this.reader.requestSlice(this.reader.fileSize-Zo,Zo);Te(e)&&(e=yield e),y(e);"TAG"===Xo(e,3)&&il(e,this.metadataTags)}return this.metadataTags}finally{e()}})}}class on{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return y(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return d(this,null,function*(){const e=this.demuxer;if(y(null!==e.firstFrameHeader),y(null!==e.firstFrameHeaderPos),e.xingData){if(null!==e.xingData.frameCount)return e.xingData.frameCount*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}else if(null!==e.reader.fileSize){const s=(t=e.firstFrameHeader.lowSamplingFrequency,i=e.firstFrameHeader.layer,r=e.firstFrameHeader.bitrate,n=e.firstFrameHeader.sampleRate,0===i?0:1===i?144*r/(n<e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return d(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=W(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1>>0&4294967295}const un=e=>{const t=I(e),i=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let n=0;n>>24^t])>>>0}return t.setUint32(22,i,!0),r},dn=(e,t,i)=>{let r=0,n=null;if(e.length>0)if("vorbis"===t.codec){y(t.vorbisInfo);const s=(1<<(e=>{let t=0;for(;e;)t++,e>>=1;return t})(t.vorbisInfo.modeBlockflags.length-1))-1<<1,a=(e[0]&s)>>1;if(a>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let o=i;const l=t.vorbisInfo.modeBlockflags[a];if(n=t.vorbisInfo.blocksizes[l],1===l){const i=1+(1|s),r=e[0]&i?1:0;o=t.vorbisInfo.blocksizes[r]}r=null!==o?o+n>>2:0}else if("opus"===t.codec){r=(e=>{const t=e[0]>>3,i=3&e[0];let r;return r=0===i?1:1===i||2===i?2:63&e[1],{durationInSamples:Rt[t]*r}})(e).durationInSamples}return{durationInSamples:r,vorbisBlockSize:n}},hn=27,fn=282,mn=e=>{const t=e.filePos;if(zo(e)!==ln)return null;e.skip(1);const i=Fo(e),r=Vo(e),n=zo(e),s=zo(e),a=zo(e),o=Fo(e),l=new Uint8Array(o);for(let d=0;de+t,0);return{headerStartPos:t,totalSize:c+u,dataStartPos:t+c,dataSize:u,headerType:i,granulePosition:r,serialNumber:n,sequenceNumber:s,checksum:a,lacingValues:l}},pn=(e,t)=>{for(;e.filePos>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===ln)return!0;e.skip(1)}}return!1};class gn extends Ei{constructor(e){super(e),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=e._reader}readMetadata(){return d(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>d(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,hn,fn);if(Te(t)&&(t=yield t),!t)break;const i=mn(t);if(!i)break;if(!!!(2&i.headerType))break;this.bitstreams.push({serialNumber:i.serialNumber,bosPage:i,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=i.headerStartPos+i.totalSize}for(const t of this.bitstreams){const e=yield this.readPacket(t.bosPage,0);e&&(e.data.byteLength>=7&&1===e.data[0]&&118===e.data[1]&&111===e.data[2]&&114===e.data[3]&&98===e.data[4]&&105===e.data[5]&&115===e.data[6]?yield this.readVorbisMetadata(e,t):e.data.byteLength>=8&&79===e.data[0]&&112===e.data[1]&&117===e.data[2]&&115===e.data[3]&&72===e.data[4]&&101===e.data[5]&&97===e.data[6]&&100===e.data[7]&&(yield this.readOpusMetadata(e,t)),null!==t.codecInfo.codec&&this.trackBackings.push(new kn(t,this)))}}))()})}readVorbisMetadata(e,t){return d(this,null,function*(){let i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;if(i=yield this.findNextPacketStart(r),!i)return;const n=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!n)return;if(3!==r.data[0]||5!==n.data[0])return;const s=[],a=e=>{for(;s.push(Math.min(255,e)),!(e<255);)e-=255};a(e.data.length),a(r.data.length);const o=new Uint8Array(1+s.length+e.data.length+r.data.length+n.data.length);o[0]=2,o.set(s,1),o.set(e.data,1+s.length),o.set(r.data,1+s.length+e.data.length),o.set(n.data,1+s.length+e.data.length+r.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=n;const l=I(e.data);t.numberOfChannels=l.getUint8(11),t.sampleRate=l.getUint32(12,!0);const c=l.getUint8(28);t.codecInfo.vorbisInfo={blocksizes:[1<<(15&c),1<<(c>>4)],modeBlockflags:Ft(n.data).modeBlockflags},Nt(r.data.subarray(7),this.metadataTags)})}readOpusMetadata(e,t){return d(this,null,function*(){const i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=r;const n=(e=>{const t=I(e),i=t.getUint8(9),r=t.getUint16(10,!0),n=t.getUint32(12,!0),s=t.getInt16(16,!0),a=t.getUint8(18);let o=null;return a&&(o=e.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:n,outputGain:s,channelMappingFamily:a,channelMappingTable:o}})(e.data);t.numberOfChannels=n.outputChannelCount,t.sampleRate=pi,t.codecInfo.opusInfo={preSkip:n.preSkip},Nt(r.data.subarray(8),this.metadataTags)})}readPacket(e,t){return d(this,null,function*(){y(te+t.length,0);if(0===o)return null;const l=new Uint8Array(o);let c=0;for(let e=0;e{let t="audio/ogg";e.codecStrings&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({codecStrings:(yield Promise.all(this.trackBackings.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})))).filter(Boolean)})})}getTrackBackings(){return d(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return d(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}class kn{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new O,this.internalSampleRate="opus"===e.codecInfo.codec?pi:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return y(-1!==e),e+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return d(this,null,function*(){return null})}getLiveRefreshInterval(){return d(this,null,function*(){return null})}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}getDecoderConfig(){return d(this,null,function*(){var e;return y(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:null!=(e=this.bitstream.description)?e:void 0}})}getName(){return null}getLanguageCode(){return Z}getDisposition(){return u(c({},Le),{primary:!1})}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(y(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:n}=dn(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new Ri(i.metadataOnly?_i:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,r/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:r,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:n}),s}getFirstPacket(e){return d(this,null,function*(){y(this.bitstream.lastMetadataPacket);const t=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let i=0;"opus"===this.bitstream.codecInfo.codec&&(y(this.bitstream.codecInfo.opusInfo),i-=this.bitstream.codecInfo.opusInfo.preSkip);const r=yield this.demuxer.readPacket(t.startPage,t.startSegmentIndex);return this.createEncodedPacketFromOggPacket(r,{timestampInSamples:i,vorbisLastBlocksize:null},e)})}getNextPacket(e,t){return d(this,null,function*(){const i=this.encodedPacketToMetadata.get(e);if(!i)throw new Error("Packet was not created from this track.");const r=yield this.demuxer.findNextPacketStart(i.packet);if(!r)return null;const n=i.timestampInSamples+i.durationInSamples,s=yield this.demuxer.readPacket(r.startPage,r.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:n,vorbisLastBlocksize:i.vorbisBlockSize},t)})}getPacket(e,t){return d(this,null,function*(){var i,r;if(null===this.demuxer.reader.fileSize)return this.getPacketSequential(e,t);const n=ee(e*this.internalSampleRate);if(0===n)return this.getFirstPacket(t);if(n<0)return null;y(this.bitstream.lastMetadataPacket);const s=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!s)return null;let a=s.startPage,o=this.demuxer.reader.fileSize;const l=[a];e:for(;a.headerStartPos+a.totalSizen?o=c.headerStartPos:(a=c,l.push(c));continue e}i=c.headerStartPos+c.totalSize}}let c=s.startPage;for(const e of l){if(e.granulePosition===a.granulePosition)break;(!c||e.headerStartPos>c.headerStartPos)&&(c=e)}let u=c;const d=[u];for(;u.serialNumber!==this.bitstream.serialNumber||u.granulePosition!==a.granulePosition;){const e=u.headerStartPos+u.totalSize;let t=this.demuxer.reader.requestSliceRange(e,hn,fn);Te(t)&&(t=yield t),y(t);const i=mn(t);y(i),u=i,u.serialNumber===this.bitstream.serialNumber&&d.push(u)}y(-1!==u.granulePosition);let h,f,m=null,p=u,g=0;if(u.headerStartPos===s.startPage.headerStartPos)h=this.granulePositionToTimestampInSamples(0),f=!0,m=0;else{h=0,f=!1;for(let t=u.lacingValues.length-1;t>=0;t--){if(u.lacingValues[t]<255){m=t+1;break}}if(null===m)throw new Error("Invalid page with granule position: no packets end on this page.");g=m-1;const e={data:_i,endPage:p,endSegmentIndex:g};if(yield this.demuxer.findNextPacketStart(e)){const e=bn(d,u,m);y(e);const t=yn(d,e.page,e.segmentIndex);t&&(u=t.page,m=t.segmentIndex)}else for(;;){const e=bn(d,u,m);if(!e)break;const t=yn(d,e.page,e.segmentIndex);if(!t)break;if(u=t.page,m=t.segmentIndex,e.page.headerStartPos!==p.headerStartPos){p=e.page,g=e.segmentIndex;break}}}let k=null,b=null;for(;null!==u;){y(null!==m);const e=yield this.demuxer.readPacket(u,m);if(!e)break;if(!(u.headerStartPos===s.startPage.headerStartPos&&mn||Math.max(a.timestampInSamples,0)===n))break}const a=yield this.demuxer.findNextPacketStart(e);if(!a)break;u=a.startPage,m=a.startSegmentIndex}return k})}getPacketSequential(e,t){return d(this,null,function*(){const i=yield this.sequentialScanMutex.acquire();try{const i=ee(e*this.internalSampleRate);e=i/this.internalSampleRate;const r=W(this.sequentialScanCache,i,e=>e.timestampInSamples);let n;if(-1!==r){const e=this.sequentialScanCache[r];n=this.createEncodedPacketFromOggPacket(e.packet,{timestampInSamples:e.timestampInSamples,vorbisLastBlocksize:e.vorbisLastBlockSize},t)}else n=yield this.getFirstPacket(t);let s=0;for(;n&&n.timestampe)break;if(n=i,s++,100===s){s=0;const e=this.encodedPacketToMetadata.get(n);y(e),this.sequentialScanCache.length>0&&y(T(this.sequentialScanCache).timestampInSamples<=e.timestampInSamples),this.sequentialScanCache.push(e)}}return n}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const yn=(e,t,i)=>{let r=t,n=i;e:for(;;){for(n--;n>=0;n--){if(r.lacingValues[n]<255){n++;break e}}y(-1===n);if(!(1&r.headerType)){n=0;break}const t=K(e,e=>e.headerStartPos{if(i>0)return{page:t,segmentIndex:i-1};const r=K(e,e=>e.headerStartPosd(this,null,function*(){var e,t;let i=this.reader.requestSlice(0,12);Te(i)&&(i=yield i),y(i);const r=Xo(i,4),n="RIFX"!==r,s="RF64"===r,a=Oo(i,n);let o=s?this.reader.fileSize:Math.min(a+8,null!=(e=this.reader.fileSize)?e:1/0);if("WAVE"!==Xo(i,4))throw new Error("Invalid WAVE file - wrong format");let l=0,c=null,u=i.filePos;for(;null===o||u=18&&357!==n){const e=Ao(r,i),s=t-18;if(Math.min(s,e)>=22&&n===Tn.EXTENSIBLE){r.skip(6);const e=Ro(r,16);n=e[0]|e[1]<<8}}if(n!==Tn.MULAW&&n!==Tn.ALAW||(l=8),n!==Tn.PCM&&n!==Tn.IEEE_FLOAT&&n!==Tn.ALAW&&n!==Tn.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${n}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(n===Tn.PCM&&![8,16,24,32].includes(l))throw new Error(`Unsupported WAVE PCM bit depth (${l}). Only 8, 16, 24, and 32 bits are supported.`);if(n===Tn.IEEE_FLOAT&&![32,64].includes(l))throw new Error(`Unsupported WAVE float bit depth (${l}). Only 32 and 64 bits are supported.`);this.audioInfo={format:n,numberOfChannels:s,sampleRate:a,sampleSizeInBytes:Math.ceil(l/8),blockSizeInBytes:o}})}parseListChunk(e,t,i){return d(this,null,function*(){var r,n,s,a,o,l,c,u,d,h,f;let m=this.reader.requestSlice(e,t);if(Te(m)&&(m=yield m),!m)return;const p=Xo(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=Xo(m,4),t=Oo(m,i),p=Ro(m,t);let k=0;for(let i=0;i0&&(null!=(l=this.metadataTags).trackNumber||(l.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(c=this.metadataTags).tracksTotal||(c.tracksTotal=i))}break;case"ICRD":case"IDIT":{const e=new Date(y);Number.isNaN(e.getTime())||null!=(u=this.metadataTags).date||(u.date=e)}break;case"YEAR":{const e=Number.parseInt(y,10);Number.isInteger(e)&&e>0&&(null!=(d=this.metadataTags).date||(d.date=new Date(e,0,1)))}break;case"IGNR":case"GENR":null!=(h=this.metadataTags).genre||(h.genre=y);break;case"ICMT":case"CMNT":case"COMM":null!=(f=this.metadataTags).comment||(f.comment=y)}g+=8+t+(1&t)}})}parseId3Chunk(e,t){return d(this,null,function*(){let i=this.reader.requestSlice(e,t);if(Te(i)&&(i=yield i),!i)return;const r=nl(i);if(r){const n=t-el;if(r.size=Math.min(r.size,n),r.size>0){const t=i.slice(e+el,r.size);sl(t,r,this.metadataTags)}}})}getCodec(){if(y(this.audioInfo),this.audioInfo.format===Tn.MULAW)return"ulaw";if(this.audioInfo.format===Tn.ALAW)return"alaw";if(this.audioInfo.format===Tn.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}if(this.audioInfo.format===Tn.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}y(!1)}getMimeType(){return d(this,null,function*(){return"audio/wav"})}getTrackBackings(){return d(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return d(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}const wn=2048;class Pn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return y(this.demuxer.audioInfo),this.demuxer.audioInfo.format}getDecoderConfig(){return d(this,null,function*(){const e=this.demuxer.getCodec();return e?(y(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null})}getNumberOfChannels(){return y(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return y(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return y(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return d(this,null,function*(){return y(-1!==this.demuxer.dataSize),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return d(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return Z}getDisposition(){return c({},Le)}getPacketAtIndex(e,t){return d(this,null,function*(){y(e>=0),y(this.demuxer.audioInfo);const i=e*wn*this.demuxer.audioInfo.blockSizeInBytes;if(i>=this.demuxer.dataSize)return null;const r=Math.min(wn*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-i);if(null===this.demuxer.reader.fileSize){let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);if(Te(e)&&(e=yield e),!e)return null}let n;if(t.metadataOnly)n=_i;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);Te(e)&&(e=yield e),y(e),n=Ro(e,r)}const s=e*wn/this.demuxer.audioInfo.sampleRate,a=r/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(e,this.demuxer.lastKnownPacketIndex),new Ri(n,"key",s,a,e,r)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getPacket(e,t){return d(this,null,function*(){y(this.demuxer.audioInfo);const i=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/wn,(this.demuxer.dataSize-1)/(wn*this.demuxer.audioInfo.blockSizeInBytes)));if(i<0)return null;const r=yield this.getPacketAtIndex(i,t);if(r)return r;if(0===i)return null;y(null===this.demuxer.reader.fileSize);let n=yield this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,t);for(;n;){const e=yield this.getNextPacket(n,t);if(!e)break;n=e}return n})}getNextPacket(e,t){y(this.demuxer.audioInfo);const i=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/wn);return this.getPacketAtIndex(i+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const In=e=>{const t=e.filePos,i=Ro(e,9),r=new ze(i);if(4095!==r.readBits(12))return null;r.skipBits(1);if(0!==r.readBits(2))return null;const n=r.readBits(1),s=r.readBits(2)+1,a=r.readBits(4);if(15===a)return null;r.skipBits(1);const o=r.readBits(3);if(0===o)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const l=r.readBits(13);r.skipBits(11);const c=r.readBits(2)+1;if(1!==c)throw new Error("ADTS frames with more than one AAC frame are not supported.");let u=null;return 1===n?e.filePos-=2:u=r.readBits(16),{objectType:s,samplingFrequencyIndex:a,channelConfiguration:o,frameLength:l,numberOfAacFrames:c,crcCheck:u,startPos:t}},xn=1024;class Cn extends Ei{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new O,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return d(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>d(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();y(this.firstFrameHeader),this.trackBackings=[new Bn(this)]}))()})}advanceReader(){return d(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,el);if(Te(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=nl(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(Te(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=In(e);if(!t)return void(this.lastSampleLoaded=!0);if(null!==this.reader.fileSize&&t.startPos+t.frameLength>this.reader.fileSize)return void(this.lastSampleLoaded=!0);this.firstFrameHeader||(this.firstFrameHeader=t);const i=Ue[t.samplingFrequencyIndex];y(void 0!==i);const r=xn/i,n={timestamp:this.nextTimestampInSamples/i,duration:r,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(n),this.nextTimestampInSamples+=xn,this.lastLoadedPos=t.startPos+t.frameLength})}getMimeType(){return d(this,null,function*(){return"audio/aac"})}getTrackBackings(){return d(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return d(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0;for(;;){let t=this.reader.requestSlice(e,el);if(Te(t)&&(t=yield t),!t)break;const i=nl(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(Te(r)&&(r=yield r),!r)break;sl(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}})}}class Bn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/xn}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return d(this,null,function*(){return null})}getLiveRefreshInterval(){return d(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return Z}getCodec(){return"aac"}getInternalCodecId(){return y(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){y(this.demuxer.firstFrameHeader);const e=qe[this.demuxer.firstFrameHeader.channelConfiguration];return y(void 0!==e),e}getSampleRate(){y(this.demuxer.firstFrameHeader);const e=Ue[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return y(void 0!==e),e}getDisposition(){return c({},Le)}getDecoderConfig(){return d(this,null,function*(){return y(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}})}getPacketAtIndex(e,t){return d(this,null,function*(){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=_i;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(Te(e)&&(e=yield e),!e)return null;r=Ro(e,i.dataSize)}return new Ri(r,"key",i.timestamp,i.duration,e,i.dataSize)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getNextPacket(e,t){return d(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=q(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return d(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=W(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1d(this,null,function*(){var e;let t=0;for(;;){let e=this.reader.requestSlice(t,el);if(Te(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const i=nl(e);if(!i)break;let r=this.reader.requestSlice(e.filePos,i.size);Te(r)&&(r=yield r),y(r),sl(r,i,this.metadataTags),t=e.filePos+i.size}for(t+=4;null===this.reader.fileSize||ts.end-6)return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:s.end-e,isLastFrame:!0};if(255===Fo(s)){const t=s.filePos;if(Fo(s)!==(1===this.blockingBit?249:248)){s.filePos=t;continue}s.skip(-2);const i=s.filePos-e,r=this.readFlacFrameHeader({slice:s,isFirstPacket:!1});if(!r){s.filePos=t;continue}if(0===this.blockingBit){if(r.num-a.num!==1){s.filePos=t;continue}}else if(r.num-a.num!==a.blockSize){s.filePos=t;continue}return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:i,isLastFrame:!1}}}})}readFlacFrameHeader({slice:e,isFirstPacket:t}){const i=e.filePos,r=Ro(e,4),n=new ze(r);if(32764!==n.readBits(15))return null;if(null===this.blockingBit){y(t);const e=n.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){y(!t);if(1!==n.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");y(!t);if(0!==n.readBits(1))return null}const s=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*o(2,e):6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?o(2,e):null)(n.readBits(4));if(!s)return null;y(this.audioInfo);const a=((e,t)=>{switch(e){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}})(n.readBits(4),this.audioInfo.sampleRate);if(!a)return null;n.readBits(4),n.readBits(3);if(0!==n.readBits(1))return null;const l=(e=>{let t=0;const i=new ze(Ro(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],n=t-1,s=new ze(Ro(e,n)),a=8-t-1;for(let o=0;oe|t<"uncommon-u16"===t?Do(e)+1:"uncommon-u8"===t?Fo(e)+1:"number"===typeof t?t:($(t),void y(!1)))(e,s),u=((e,t)=>"uncommon-u16"===t?Do(e):"uncommon-u16-10"===t?10*Do(e):"uncommon-u8"===t?Fo(e):"number"===typeof t?t:null)(e,a);if(null===u)return null;if(u!==this.audioInfo.sampleRate)return null;const d=e.filePos-i,h=Fo(e);e.skip(-d),e.skip(-1);const f=(e=>{let t=0;for(const i of e){t^=i;for(let e=0;e<8;e++)0!==(128&t)?t=t<<1^7:t<<=1,t&=255}return t})(Ro(e,d));return h!==f?null:{num:l,blockSize:c,sampleRate:u}}advanceReader(){return d(this,null,function*(){yield this.readMetadata(),y(null!==this.lastLoadedPos),y(this.audioInfo);const e=this.lastLoadedPos,t=yield this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length});if(!t)return void(this.lastSampleLoaded=!0);const i=this.loadedSamples[this.loadedSamples.length-1],r={blockOffset:i?i.blockOffset+i.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size};this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(r),t.isLastFrame&&(this.lastSampleLoaded=!0)})}}class _n{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return y(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return y(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return Z}getTimeResolution(){return y(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return d(this,null,function*(){return y(this.demuxer.audioInfo),0===this.demuxer.audioInfo.totalSamples?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return d(this,null,function*(){return null})}getDisposition(){return c({},Le)}getDecoderConfig(){return d(this,null,function*(){return y(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}})}getPacket(e,t){return d(this,null,function*(){if(y(this.demuxer.audioInfo),e<0)return null;const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=W(this.demuxer.loadedSamples,e,e=>e.blockOffset/this.demuxer.audioInfo.sampleRate);if(-1===i){yield this.demuxer.advanceReader();continue}const r=this.demuxer.loadedSamples[i],n=r.blockOffset/this.demuxer.audioInfo.sampleRate;if(!(n+r.blockSize/this.demuxer.audioInfo.sampleRate<=e))return this.getPacketAtIndex(i,t);if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t);yield this.demuxer.advanceReader()}}finally{i()}})}getNextPacket(e,t){return d(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=e.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&i>=this.demuxer.loadedSamples.length)return null;for(;i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(i,t)}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}getPacketAtIndex(e,t){return d(this,null,function*(){const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=_i;else{let e=this.demuxer.reader.requestSlice(i.byteOffset,i.byteSize);if(Te(e)&&(e=yield e),!e)return null;r=Ro(e,i.byteSize)}y(this.demuxer.audioInfo);const n=i.blockOffset/this.demuxer.audioInfo.sampleRate,s=i.blockSize/this.demuxer.audioInfo.sampleRate;return new Ri(r,"key",n,s,e,i.byteSize)})}getFirstPacket(e){return d(this,null,function*(){for(;0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(0,e)})}}const Rn=9e4,Fn=o(2,33),An=188,Dn="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",Mn=new Set([133,134,162]),Nn=new Set;class On extends Ei{constructor(e){super(e),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5242880,this.minReferencePointByteDistance=-1,this.timestampWrapInfo=null,this.reader=e._reader}readMetadata(){return d(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>d(this,null,function*(){let e=this.reader.requestSlice(0,205);Te(e)&&(e=yield e),y(e);const t=Ro(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=An;else if(71===t[0]&&71===t[204])this.packetOffset=0,this.packetStride=204;else{if(71!==t[4]||71!==t[196])throw new Error("Unreachable.");this.packetOffset=4,this.packetStride=192}this.minReferencePointByteDistance=256*this.packetStride;let i=this.packetOffset,r=null,n=!1,s=!1;for(;;){const e=yield this.readPacketHeader(i);if(!e)break;if(0===e.payloadUnitStartIndicator){i+=this.packetStride;continue}if(s&&!this.elementaryStreams.some(t=>t.pid===e.pid)){i+=this.packetStride;continue}const t=yield this.readSection(i,!0,!s);if(!t)break;const a=3,o=32;let l=!1;if(!s&&0!==t.pid){if(!(0===t.payload[0]&&0===t.payload[1]&&1===t.payload[2])){const e=new ze(t.payload),i=e.readAlignedByte();e.skipBits(8*i);l=2===e.readBits(8)}}if(0!==t.pid||n)if(t.pid!==r&&!l||s){const e=this.elementaryStreams.find(e=>e.pid===t.pid);e:if(e&&!e.initialized){const i=zn(this,t,!0);if(!i)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${e.pid}`);if(e.firstSection=t,e.canBeTrustedWithKeyPackets=1===t.randomAccessIndicator,this.input._initInput){const i=(yield this.input._initInput._getDemuxer()).elementaryStreams.find(i=>i.pid===t.pid&&i.info.codec===e.info.codec);if(i){e.info=i.info,e.initialized=!0;break e}}const r=new Vn(e,i);if("video"===e.info.type){for(;;){if(r.suppliedPacket=null,yield r.markNextPacket(),"avc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(e.info.avcCodecInfo=st(r.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];y(t);const i=ct(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight;const n=i.pixelAspectRatio.num,s=i.pixelAspectRatio.den;n>0&&s>0&&(n>s?(e.info.squarePixelWidth=Math.round(e.info.width*n/s),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*s/n))),e.info.colorSpace={primaries:E[i.colourPrimaries],transfer:R[i.transferCharacteristics],matrix:A[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}if("hevc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(e.info.hevcCodecInfo=pt(r.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===Ge.SPS_NUT).nalUnits[0];y(t);const i=mt(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight,i.pixelAspectRatio.num>i.pixelAspectRatio.den?(e.info.squarePixelWidth=Math.round(e.info.width*i.pixelAspectRatio.num/i.pixelAspectRatio.den),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*i.pixelAspectRatio.den/i.pixelAspectRatio.num)),e.info.colorSpace={primaries:E[i.colourPrimaries],transfer:R[i.transferCharacteristics],matrix:A[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:hi({width:e.info.width,height:e.info.height,codec:e.info.codec,codecDescription:null,colorSpace:e.info.colorSpace,avcType:1,avcCodecInfo:e.info.avcCodecInfo,hevcCodecInfo:e.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:e.info.width,codedHeight:e.info.height,colorSpace:e.info.colorSpace},e.info.width===e.info.squarePixelWidth&&e.info.height===e.info.squarePixelHeight||(e.info.decoderConfig.displayAspectWidth=e.info.squarePixelWidth,e.info.decoderConfig.displayAspectHeight=e.info.squarePixelHeight),e.initialized=!0}else{if(yield r.markNextPacket(),!r.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${e.pid}`);if("aac"===e.info.codec){const t=Eo.tempFromBytes(r.suppliedPacket.data),i=In(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=qe[i.channelConfiguration],e.info.sampleRate=Ue[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=Lo(Eo.tempFromBytes(r.suppliedPacket.data)),i=Pi(t,r.suppliedPacket.data.byteLength);if(!i.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");e.info.numberOfChannels=Bi(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=Lt(r.suppliedPacket.data);if(!t)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(3===t.fscod)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Ot[t.acmod]+t.lfeon,e.info.sampleRate=je[t.fscod]}else if("eac3"===e.info.codec){const t=qt(r.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=Wt(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Ht(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=Jt(r.suppliedPacket.data);if(!t)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");e.info.numberOfChannels=t.numberOfChannels,e.info.sampleRate=t.sampleRate,t.core&&(e.info.dtsFormat=t.hasExtensions?"dtsh":"dtsc")}}e.info.decoderConfig={codec:mi({codec:e.info.codec,codecDescription:null,aacCodecInfo:e.info.aacCodecInfo,dtsFormat:e.info.dtsFormat}),numberOfChannels:e.info.numberOfChannels,sampleRate:e.info.sampleRate},e.initialized=!0}}}else{const e=new ze(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(12);const r=e.readBits(12);e.skipBits(43),e.readBits(13),e.skipBits(6);const n=e.readBits(10),l=e.pos+8*n;let c=!1;for(;e.pos=4){const t=e.readBits(32);c||(c=1212435798===t||1212436562===t)}e.pos=r}for(e.pos=l;8*(r+a)-e.pos>o;){const t=e.readBits(8);e.skipBits(3);const i=e.readBits(13);e.skipBits(6);const r=e.readBits(10),n=e.pos+8*r;let s=!1,a=!1,o=!1;for(;e.pos=4){const t=e.readBits(32);o||(o=1146376960===(4294967040&t))}e.pos=r}let l=null;const u=c&&Mn.has(t)?130:t;switch(u){case 27:case 36:l={type:"video",codec:27===t?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let e;e=3===u||4===u?"mp3":15===u?"aac":129===u?"ac3":135===u?"eac3":"dts",l={type:"audio",codec:e,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:a?l={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:s?l={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:o&&(l={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:Nn.has(t)||(Me._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),Nn.add(t))}l&&this.elementaryStreams.push({demuxer:this,pid:i,streamType:t,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:l,referencePesPackets:[]})}s=!0}else{const e=new ze(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(14);const s=e.readBits(10);for(e.skipBits(40);8*(s+a)-e.pos>o;){const t=e.readBits(16);e.skipBits(3);const i=e.readBits(13);if(0!==t){if(null!==r)throw new Error("Only files with a single program are supported.");r=i}}if(null===r)throw new Error("Program Association Table must link to a Program Map Table.");n=!0}if(s&&this.elementaryStreams.every(e=>e.initialized))break;i+=this.packetStride}if(!s){if(!n)throw new Error("No Program Association Table found in the file.");throw new Error("No Program Map Table found in the file.")}for(const a of this.elementaryStreams)a.initialized&&("video"===a.info.type?this.trackBackingEntries.push(new qn(a)):this.trackBackingEntries.push(new Wn(a)))}))()})}getTrackBackings(){return d(this,null,function*(){return yield this.readMetadata(),this.trackBackingEntries})}getMetadataTags(){return d(this,null,function*(){return{}})}getMimeType(){return d(this,null,function*(){yield this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${i.join(", ")}"`),t})(yield Promise.all(this.trackBackingEntries.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null}))))})}readSection(e,t,i=!1){return d(this,null,function*(){let r=e,n=e;const s=[];let a,o=0,l=null,c=!0,u=0;for(;;){const e=yield this.readPacket(n);if(n+=this.packetStride,!e)break;if(l){if(e.pid!==l.pid){if(i)break;continue}if(1===e.payloadUnitStartIndicator)break}else{if(0===e.payloadUnitStartIndicator)break;l=e}const a=!!(2&e.adaptationFieldControl),d=!!(1&e.adaptationFieldControl);let h=0;if(a&&(h=1+e.body[0],e===l&&h>1&&(u=e.body[1]>>6&1)),d&&(0===h?(s.push(e.body),o+=e.body.byteLength):(s.push(e.body.subarray(h)),o+=e.body.byteLength-h)),r=n,!t&&o>=64){c=!1;break}if(-1!==q(this.sectionEndPositions,r,e=>e)){c=!1;break}}if(c){const e=W(this.sectionEndPositions,r,e=>e);this.sectionEndPositions.splice(e+1,0,r)}if(!l)return null;if(1===s.length)a=s[0];else{const e=s.reduce((e,t)=>e+t.length,0);a=new Uint8Array(e);let t=0;for(const i of s)a.set(i,t),t+=i.length}return{startPos:e,endPos:t?r:null,pid:l.pid,payload:a,randomAccessIndicator:u}})}readPacketHeader(e){return d(this,null,function*(){let t=this.reader.requestSlice(e,4);if(Te(t)&&(t=yield t),!t)return null;if(71!==Fo(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=Do(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:Fo(t)>>4&3}})}readPacket(e){return d(this,null,function*(){let t=this.reader.requestSlice(e,An);if(Te(t)&&(t=yield t),!t)return null;const i=Ro(t,An);if(71!==i[0])throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const r=(i[1]<<8)+i[2];return{payloadUnitStartIndicator:r>>14&1,pid:8191&r,adaptationFieldControl:i[3]>>4&3,body:i.subarray(4)}})}normalizeTimestamp(e){if(!this.timestampWrapInfo){const t=54e5;this.timestampWrapInfo={reference:e-t,offset:e>=Fn-t?-Fn:Fn}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e{if(t.payload.byteLength<3)return null;const r=new ze(t.payload);if(1!==r.readBits(24))return null;const n=r.readBits(8);if(r.skipBits(16),188===n||190===n||191===n||240===n||241===n||255===n||242===n||248===n)return null;r.skipBits(8);const s=r.readBits(2);r.skipBits(14);let a=null;if(2===s||3===s)a=0,r.skipBits(4),a+=r.readBits(3)*(1<<30),r.skipBits(1),a+=32768*r.readBits(15),r.skipBits(1),a+=r.readBits(15),a=e.normalizeTimestamp(a);else if(i)throw new Error(Dn);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:a,randomAccessIndicator:t.randomAccessIndicator}},zn=(e,t,i)=>{y(null!==t.endPos);const r=Ln(e,t,i);if(!r)return null;const n=new ze(t.payload);n.skipBits(32);const s=n.readBits(16);n.skipBits(16);const a=n.readBits(8),o=n.pos+8*a;n.pos=o;const l=o/8;y(Number.isInteger(l));const d=t.payload.subarray(l,s>0?6+s:t.payload.byteLength);return u(c({},r),{data:d})};class Un{constructor(e){this.elementaryStream=e,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const e=this.elementaryStream.demuxer,t=this.elementaryStream.info.type;let i=0;for(const r of e.trackBackingEntries)if(r.getType()===t&&i++,y(r instanceof Un),r.elementaryStream===this.elementaryStream)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return Z}getDisposition(){return u(c({},Le),{primary:!1})}getTimeResolution(){return Rn}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return d(this,null,function*(){return null})}getLiveRefreshInterval(){return d(this,null,function*(){return null})}createEncodedPacket(e,t,i){let r;return r=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new Ri(i.metadataOnly?_i:e.data,r,e.pts/Rn,Math.max(t/Rn,0),e.sequenceNumber,e.data.byteLength)}getFirstPacket(e){return d(this,null,function*(){const t=this.elementaryStream.firstSection;y(t);const i=zn(this.elementaryStream.demuxer,t,!0);y(i);const r=new Vn(this.elementaryStream,i),n=new jn(this,r),s=yield n.readNext();if(!s)return null;const a=this.createEncodedPacket(s.packet,s.duration,e);return this.packetBuffers.set(a,n),this.packetSectionStarts.set(a,s.packet.sectionStartPos),a})}getNextPacket(e,t){return d(this,null,function*(){let i=this.packetBuffers.get(e);if(i){const r=yield i.readNext();if(!r)return null;this.packetBuffers.delete(e);const n=this.createEncodedPacket(r.packet,r.duration,t);return this.packetBuffers.set(n,i),this.packetSectionStarts.set(n,r.packet.sectionStartPos),n}const r=this.packetSectionStarts.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");const n=this.elementaryStream.demuxer,s=yield n.readSection(r,!0);y(s);const a=zn(n,s,!0);y(a);const o=new Vn(this.elementaryStream,a);i=new jn(this,o);const l=e.sequenceNumber;for(;;){const e=yield i.readNext();if(!e)return null;if(e.packet.sequenceNumber>l){const r=this.createEncodedPacket(e.packet,e.duration,t);return this.packetBuffers.set(r,i),this.packetSectionStarts.set(r,e.packet.sectionStartPos),r}}})}getNextKeyPacket(e,t){return d(this,null,function*(){let i=e;for(;;){if(i=yield this.getNextPacket(i,t),!i)return null;if("key"===i.type)return i}})}getPacket(e,t){return this.doPacketLookup(e,!1,t)}getKeyPacket(e,t){return this.doPacketLookup(e,!0,t)}doPacketLookup(e,t,i){return d(this,null,function*(){var r,n,s,a,o,l;const c=ee(e*Rn),u=this.elementaryStream.demuxer,{reader:h,seekChunkSize:f}=u,m=this.elementaryStream.pid,p=(e,t,i)=>d(this,null,function*(){let r=e;for(;re.pts),w=-1!==S?v[S]:null;if(w&&c-w.pts<45e3)b=w.sectionStartPos;else{let e=0;if(null!==h.fileSize){const t=Math.ceil(h.fileSize/f);if(t>1){let i=0,r=t-1;for(e=i;i<=r;){const t=Math.floor((i+r)/2),n=re(t*f,u.packetStride)+k.sectionStartPos,s=n+f,a=yield p(n,s,!1);a?a.pesPacketHeader.pts<=c?(e=t,i=t+1):r=t-1:r=t-1}}}b=re(e*f,u.packetStride)+k.sectionStartPos}const P=yield p(b,null!=(r=h.fileSize)?r:1/0,!1);let I=null!=(n=null==P?void 0:P.pesPacketHeader)?n:null;I||(I=k);const x=this.getReorderSize(),C=(e,t)=>d(this,null,function*(){var r,n;const s=yield u.readSection(e,!0);y(s);const a=zn(u,s,!0);y(a);const o=new Vn(this.elementaryStream,a),l=new jn(this,o);for(;;){if((null!=(n=null==(r=T(l.presentationOrderPackets))?void 0:r.pts)?n:-1/0)>=c)break;if(!(yield l.readNextPacket()))break}const d=X(l.presentationOrderPackets,t);if(-1===d)return null;const h=l.presentationOrderPackets[d],f=0===d?0:h.pts-l.presentationOrderPackets[d-1].pts;for(;l.decodeOrderPackets[0]!==h;)l.decodeOrderPackets.shift();l.lastDuration=f;const m=yield l.readNext();y(m);const p=this.createEncodedPacket(m.packet,m.duration,i);return this.packetBuffers.set(p,l),this.packetSectionStarts.set(p,m.packet.sectionStartPos),p});if(!t||this.allPacketsAreKeyPackets()){e:for(;;){let e=I.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===m&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Ln(u,t,!1);if(e&&null!==e.pts){if(e.pts>c)break e;I=e,Hn(this.elementaryStream,I);break}}}e+=u.packetStride}}e:for(let e=0;e=u.packetOffset;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===m&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Ln(u,t,!1);if(e&&null!==e.pts){I=e;break}}}e-=u.packetStride}}return C(I.sectionStartPos,e=>e.pts<=c)}{let e=b,t=null;const i=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let r=null;const n=e<=k.sectionStartPos;let d,b=null;if(n)d=k,b=g;else{const t=yield p(e,null!=(s=h.fileSize)?s:1/0,i);d=null!=(a=null==t?void 0:t.pesPacketHeader)?a:null,b=null!=(o=null==t?void 0:t.section)?o:null}let T=!1,v=0;e:for(;d&&!(null!==t&&d.sectionStartPos>=t);){if(d.pts<=c){let e;if(this.elementaryStream.canBeTrustedWithKeyPackets)e=1===d.randomAccessIndicator;else{y(b);const t=zn(u,b,!0);y(t);const i=new Vn(this.elementaryStream,t);yield i.markNextPacket(),e=1===(null==(l=i.suppliedPacket)?void 0:l.randomAccessIndicator)}e&&(r=d)}if(d.pts>c&&(T=!0),T&&(v++,v>x))break;let e=d.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===m&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,i);if(t){const e=Ln(u,t,!1);if(e&&null!==e.pts){d=e,b=t,Hn(this.elementaryStream,d);break}}}e+=u.packetStride}}if(r){let e=r;if(0===v)e:for(let r=0;r=u.packetOffset;){const r=yield u.readPacketHeader(t);if(!r)break e;if(r.pid===m&&1===r.payloadUnitStartIndicator){const r=yield u.readSection(t,i);if(r){const t=Ln(u,r,!1);if(t&&null!==t.pts){e=t;break}}}t-=u.packetStride}}const t=yield C(e.sectionStartPos,e=>e.pts<=c&&1===e.randomAccessIndicator);return y(t),t}if(n)return null;t=e,e=Math.max(re(e-k.sectionStartPos-f,u.packetStride)+k.sectionStartPos,k.sectionStartPos)}}})}}class qn extends Un{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}getColorSpace(){return d(this,null,function*(){return this.elementaryStream.info.colorSpace})}canBeTransparent(){return d(this,null,function*(){return!1})}getDecoderConfig(){return d(this,null,function*(){return y(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class Wn extends Un{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}getDecoderConfig(){return d(this,null,function*(){return y(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const Hn=(e,t)=>{const i=e.referencePesPackets,r=W(i,t.sectionStartPos,e=>e.sectionStartPos);if(r>=0){const n=i[r];if(t.pts<=n.pts)return!1;const s=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-n.sectionStartPos=e?e:this.bufferData(e-t).then(()=>Math.min(this.endPos-this.currentPos,e))}getCurrentPesPacket(){const e=this.pesPackets[this.currentPesPacketIndex];return y(e),e}bufferData(e){return d(this,null,function*(){const t=this.endPos+e;for(;this.endPos=c)break;u=t;const r=o+u;if(u+3>=c){this.seekTo(r);break}const d=l[u+1],h=l[u+2],f=l[u+3];let m=0;if(0===d&&0===h&&1===f?m=4:0===d&&1===h&&(m=3),0===m){u++;continue}const p=r;null!=n||(n=p);const g=u+m,k=g+i,y=6;if(k+("avc"===e?y:1)>c){this.seekTo(r);break}const b=l[g];let T,S,w;if("avc"===e)T=et(b),S=T===Xe.NON_IDR_SLICE||T===Xe.SLICE_DPA||T===Xe.IDR,w=T===Xe.SEI||T===Xe.SPS||T===Xe.PPS||T===Xe.AUD;else{T=ft(b);if(((1&b)<<5|l[g+1]>>3)>0){u+=m;continue}S=T<=Ge.RASL_R||T>=Ge.BLA_W_LP&&T<=21,w=T>=Ge.VPS_NUT&&T<=37||T===Ge.PREFIX_SEI_NUT||T>=41&&T<=44||T>=48&&T<=55}let P=!1;if(S){let t;if("avc"===e){const e=l.subarray(k,k+y),i=v(new ze(e));t=!s||i<=a,a=i}else t=l[k]>>7===1;t&&(s?P=!0:s=!0)}else w&&s&&(P=!0);if(P){const e=p-n;return this.seekTo(n),this.supplyPacket(e,0)}u+=m}if(rn){const e=this.endPos-n;return this.seekTo(n),this.supplyPacket(e,0)}}else{const n=r.info.codec,s=128;for(;;){let a=this.ensureBuffered(s);Te(a)&&(a=yield a);const o=this.currentPos;for(;this.currentPos-o>6,a=63&i[4];if(3===n||a>37){this.seekTo(e+1);continue}const o=zt[3*a+n];y(void 0!==o),this.seekTo(e),t=this.ensureBuffered(o),Te(t)&&(t=yield t);const l=Math.round(13824e4/r.info.sampleRate);return this.supplyPacket(t,l)}if("eac3"===n){if(11!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(5);if(Te(t)&&(t=yield t),t<5)return;const i=this.readBytes(5);if(11!==i[0]||119!==i[1]){this.seekTo(e+1);continue}const n=2*(((7&i[2])<<8|i[3])+1),a=3===i[4]>>6?3:i[4]>>4&3,o=Ut[a];this.seekTo(e),t=this.ensureBuffered(n),Te(t)&&(t=yield t);const l=256*o,c=Math.round(l*Rn/r.info.sampleRate);return this.supplyPacket(t,c)}if("dts"===n){if(127!==s&&100!==s)continue;this.skip(-1);const n=this.currentPos;let a=this.ensureBuffered(18);if(Te(a)&&(a=yield a),a<18)return;const o=this.readBytes(18),l=ei(o);let c=l?null:ti(o);if(!l&&!c){this.seekTo(n+1);continue}if(c&&!c.asset){this.seekTo(n);const t=Math.min(c.frameSize,4096);let i=this.ensureBuffered(t);Te(i)&&(i=yield i),c=null!=(e=ti(this.readBytes(i)))?e:c}let u=l?l.frameSize:c.frameSize;if(l){let e=4*Math.ceil(l.frameSize/4);for(;;){this.seekTo(n);const t=e+10;let i=this.ensureBuffered(t);if(Te(i)&&(i=yield i),i=0)}readNext(){return d(this,null,function*(){if(0===this.decodeOrderPackets.length){if(!(yield this.readNextPacket()))return null}yield this.ensureCurrentPacketHasNext();const e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e);let i;if(y(-1!==t),t===this.presentationOrderPackets.length-1)i=this.lastDuration;else{i=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=i}for(this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const e=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(e))break;this.presentationOrderPackets.shift()}return{packet:e,duration:i}})}readNextPacket(){return d(this,null,function*(){if(this.reachedEnd)return!1;let e;return this.context.suppliedPacket||(yield this.context.markNextPacket()),e=this.context.suppliedPacket,this.context.suppliedPacket=null,e?(this.decodeOrderPackets.push(e),this.processPacketThroughReorderBuffer(e),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)})}ensureCurrentPacketHasNext(){return d(this,null,function*(){const e=this.decodeOrderPackets[0];for(y(e);;){const t=this.presentationOrderPackets.indexOf(e);if(-1!==t&&t<=this.presentationOrderPackets.length-2)break;if(!(yield this.readNextPacket()))break}})}processPacketThroughReorderBuffer(e){if(this.reorderBuffer.push(e),this.reorderBuffer.length>this.reorderSize){let e=0;for(let i=1;ie.pts-t.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const Kn="application/vnd.apple.mpegurl",Xn="#EXT-X-STREAM-INF:",$n="#EXT-X-I-FRAME-STREAM-INF:",Gn="#EXT-X-MEDIA:",Qn="#EXTINF:",Yn="#EXT-X-MAP:",Jn="#EXT-X-KEY:",Zn="#EXT-X-MEDIA-SEQUENCE:",es="#EXT-X-BYTERANGE:",ts="#EXT-X-PROGRAM-DATE-TIME:",is="#EXT-X-TARGETDURATION:",rs="#EXT-X-PLAYLIST-TYPE:",ns=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class ss{constructor(e){this._attributes={};let t="",i="",r=!1,n=!1;for(let s=0;sd(this,null,function*(){const e=[];if(this.trackDeclarations){for(const t of this.trackDeclarations)if("video"===t.type){const i=Ce(e,e=>"video"===e.getType())+1;e.push(new ls(this,t,i))}else if("audio"===t.type){const i=Ce(e,e=>"audio"===e.getType())+1;e.push(new cs(this,t,i))}}else{if(this.firstSegment=yield this.getFirstSegment({}),!this.firstSegment)return[];const t=this.getInputForSegment(this.firstSegment),i=yield t.getTracks();for(const r of i)if("video"===r.type){const t=Ce(e,e=>"video"===e.getType())+1;e.push(new ls(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=Ce(e,e=>"audio"===e.getType())+1;e.push(new cs(this,{id:e.length+1,type:"audio"},t))}}return e}))()})}getFirstTimestampForInput(e){return d(this,null,function*(){const t=this.firstTimestampCache.get(e);if(void 0!==t)return t;const i=yield e.getFirstTimestamp();return this.firstTimestampCache.set(e,i),i})}getMediaOffset(e,t){return d(this,null,function*(){var i;const r=null!=(i=e.firstSegment)?i:e;let n;if(this.firstSegmentFirstTimestamps.has(r))n=this.firstSegmentFirstTimestamps.get(r);else{const e=this.getInputForSegment(r);n=yield this.getFirstTimestampForInput(e),this.firstSegmentFirstTimestamps.set(r,n)}if(r===e)return r.timestamp-n;const s=yield this.getFirstTimestampForInput(t),a=e.timestamp-r.timestamp,o=s-n-a;return Math.abs(o)<=Math.min(.25,a)?r.timestamp-n:e.timestamp-s})}dispose(){for(const e of this.inputCache)e.input.dispose();this.inputCache.length=0}}class os{constructor(e,t,i){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.firstSegment=null,this.segmentedInput=e,this.decl=t,this.number=i}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>d(this,null,function*(){var e,t;if(null!=(e=this.segmentedInput).firstSegment||(e.firstSegment=yield this.segmentedInput.getFirstSegment({})),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let i=this.segmentedInput.firstSegment,r=null;for(;i;){const e=this.segmentedInput.getInputForSegment(i);if(r=null!=(t=(yield e.getTracks()).find(e=>e.type===this.decl.type&&e.number===this.number))?t:null,r)break;i=yield this.segmentedInput.getNextSegment(i,{})}if(!r)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=r,this.firstSegment=i}))()}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(e){return this.firstInputTrack?e():this.hydrate().then(e)}getDecoderConfig(){return d(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}getHasOnlyKeyPackets(){return this.delegate(()=>{var e,t,i;return null!=(i=null==(t=(e=this.firstInputTrack._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:null})}getPairingMask(){return BigInt("1")}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}isRelativeToUnixEpoch(){return d(this,null,function*(){return yield this.hydrate(),y(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp})}getUnixTimeForTimestamp(e){return this.segmentedInput.getUnixTimeForTimestamp(e)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(e){return this.segmentedInput.getDurationFromMetadata(e)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}createAdjustedPacket(e,t,i){return d(this,null,function*(){y(e.sequenceNumber>=0),y(this.segmentedInput.firstSegment);const r=yield this.segmentedInput.getMediaOffset(t,i.input),n=t.timestamp-this.segmentedInput.firstSegment.timestamp,s=e.clone({timestamp:ie(e.timestamp+r,yield i.getTimeResolution()),sequenceNumber:Math.floor(1e8*n)+e.sequenceNumber});return this.packetInfos.set(s,{segment:t,track:i,sourcePacket:e}),s})}getFirstPacket(e){return d(this,null,function*(){var t;yield this.hydrate(),y(this.firstInputTrack),y(this.firstSegment);let i=this.firstInputTrack,r=this.firstSegment;for(;;){if(i){const t=yield i._backing.getFirstPacket(e);if(t)return this.createAdjustedPacket(t,r,i)}if(r=yield this.segmentedInput.getNextSegment(r,{skipLiveWait:e.skipLiveWait}),!r)break;const n=this.segmentedInput.getInputForSegment(r);i=null!=(t=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number))?t:null}return null})}getNextPacket(e,t){return this._getNextInternal(e,t,!1)}getNextKeyPacket(e,t){return this._getNextInternal(e,t,!0)}_getNextInternal(e,t,i){return d(this,null,function*(){const r=this.packetInfos.get(e);if(!r)throw new Error("Packet was not created from this track.");const n=i?yield r.track._backing.getNextKeyPacket(r.sourcePacket,t):yield r.track._backing.getNextPacket(r.sourcePacket,t);if(n)return this.createAdjustedPacket(n,r.segment,r.track);let s=r.segment;for(;;){const e=yield this.segmentedInput.getNextSegment(s,{skipLiveWait:t.skipLiveWait});if(!e)return null;const i=this.segmentedInput.getInputForSegment(e),n=(yield i.getTracks()).find(e=>e.type===r.track.type&&e.number===r.track.number);if(!n){s=e;continue}const a=yield n._backing.getFirstPacket(t);return a?this.createAdjustedPacket(a,e,n):null}})}getPacket(e,t){return this._getPacketInternal(e,t,!1)}getKeyPacket(e,t){return this._getPacketInternal(e,t,!0)}_getPacketInternal(e,t,i){return d(this,null,function*(){let r=yield this.segmentedInput.getSegmentAt(e,{skipLiveWait:t.skipLiveWait});if(!r)return null;for(yield this.hydrate();r;){const n=this.segmentedInput.getInputForSegment(r),s=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number);if(!s){r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait});continue}const a=yield this.segmentedInput.getMediaOffset(r,n),o=e-a,l=i?yield s._backing.getKeyPacket(o,t):yield s._backing.getPacket(o,t);if(l)return this.createAdjustedPacket(l,r,s);r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait})}return null})}}class ls extends os{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}getColorSpace(){return d(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())})}canBeTransparent(){return d(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())})}getDecoderConfig(){return d(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}class cs extends os{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}getDecoderConfig(){return d(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}Pe();const us=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class ds extends Fe{constructor(){super(),this._disposed=!1,this._refCount=0,this._usedForHls=!1,this._refFinalizationRegistry=null,this._sizePromise=null,this.onread=null,"undefined"!==typeof FinalizationRegistry&&(this._refFinalizationRegistry=new FinalizationRegistry(e=>{e._decrementRefCount()}))}getSizeOrNull(){return d(this,null,function*(){var e;if(this._disposed)throw new Co;return null!=(e=this._sizePromise)?e:this._sizePromise=(()=>d(this,null,function*(){let e=this._getFileSize();return void 0!==e||(yield this._read(0,1,0,us),e=this._getFileSize(),y(void 0!==e)),e}))()})}getSize(){return d(this,null,function*(){if(this._disposed)throw new Co;const e=yield this.getSizeOrNull();if(null===e)throw new Error("Cannot determine the size of an unsized source.");return e})}slice(e,t){if(!Number.isInteger(e)||e<0)throw new TypeError("offset must be a non-negative integer.");if(void 0!==t&&(!Number.isInteger(t)||t<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new Cs(this,e,t)}_dispatchRead(e,t){var i;null==(i=this.onread)||i.call(this,e,t),this._emit("read",{start:e,end:t})}ref(){return new hs(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class hs{constructor(e){var t;if(this._freed=!1,e._disposed)throw new Error("Cannot ref a disposed source.");e._incrementRefCount(),null==(t=e._refFinalizationRegistry)||t.register(this,e,this),this._source=e}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){var e;if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const t=this.source;y(t._refCount>0),t._decrementRefCount(),null==(e=t._refFinalizationRegistry)||e.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class fs extends ds{constructor(e,t){if("string"!==typeof e)throw new TypeError("rootPath must be a string.");if("function"!==typeof t)throw new TypeError("requestHandler must be a function.");super(),this.rootPath=e,this.requestHandler=t}_resolveRequest(e){const t=this.requestHandler(e),i=e=>{var t;if(!(e instanceof ds||e instanceof hs))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof ds?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return Te(t)?t.then(i):i(t)}}const ms=(e,t)=>e.path===t.path;class ps extends fs{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(e,t,i,r){if(!this._root){if(!this._rootRequest){const e=this._resolveRequest({path:this.rootPath,isRoot:!0}),t=e=>{const t=e instanceof ds?e.ref():e;return this._root=t,this._rootRequest=null,t};Te(e)?this._rootRequest=e.then(t):(t(e),y(this._root))}if(this._rootRequest)return this._rootRequest.then(n=>n.source._read(e,t,i,r))}return this._root.source._read(e,t,i,r)}_getFileSize(){if(this._root)return this._root.source._getFileSize()}_dispose(){this._root?this._root.free():this._rootRequest&&this._rootRequest.then(e=>e.free())}}const gs="undefined"!==typeof FinalizationRegistry?new FinalizationRegistry(e=>{e.cancel().catch(()=>{})}):null;class ks extends ds{constructor(e,t={}){var i;if(!(e instanceof Blob))throw new TypeError("blob must be a Blob.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.maxCacheSize&&(!Ie(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.useStreamReader&&"boolean"!==typeof t.useStreamReader)throw new TypeError("options.useStreamReader, when provided, must be a boolean.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(),this._readers=new WeakMap,this._blob=e,this._options=t,this._orchestrator=new xs({maxCacheSize:null!=(i=t.maxCacheSize)?i:8*o(2,20),maxWorkerCount:4,runWorker:this._runWorker.bind(this),onIdleWorkerRemoved:e=>{const t=this._readers.get(e);t&&(this._readers.delete(e),null==gs||gs.unregister(e),t.cancel().catch(()=>{}))},prefetchProfile:Is.fileSystem,handleUnhandledError:t.handleUnhandledError}),this._orchestrator.fileSize=e.size}_getFileSize(){return this._orchestrator.fileSize}_read(e,t,i,r){return this._orchestrator.read(e,t,i,r)}_runWorker(e){return d(this,null,function*(){y(e.strictTarget);let t=this._readers.get(e);if(void 0===t){if("stream"in this._blob&&!fe()&&!1!==this._options.useStreamReader){t=this._blob.slice(e.currentPos).stream().getReader(),null==gs||gs.register(e,t,e)}else t=null;this._readers.set(e,t)}for(;e.currentPos{if(t instanceof Error&&(t.message.includes("Failed to fetch")||t.message.includes("Load failed")||t.message.includes("NetworkError when attempting to fetch resource"))&&"undefined"!==typeof window){let e=null;try{"undefined"!==typeof window&&"undefined"!==typeof window.location&&(e=new URL(i instanceof Request?i.url:i,window.location.href).origin)}catch(r){}if(("undefined"===typeof navigator||"boolean"!==typeof navigator.onLine||navigator.onLine)&&null!==e&&e!==window.location.origin)return Me._warn("Request will not be retried because a CORS error was suspected due to different origins. You can modify this behavior by providing your own function for the 'getRetryDelay' option."),null}return Math.min(o(2,e-2),16)},Ts=new Set;class vs extends fs{constructor(e,t={}){var i,r,n,s;if("string"!==typeof e&&!(e instanceof URL)&&!("undefined"!==typeof Request&&e instanceof Request))throw new TypeError("url must be a string, URL or Request.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.requestInit&&(!t.requestInit||"object"!==typeof t.requestInit))throw new TypeError("options.requestInit, when provided, must be an object.");if(void 0!==t.getRetryDelay&&"function"!==typeof t.getRetryDelay)throw new TypeError("options.getRetryDelay, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!Ie(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.parallelism&&(!Number.isInteger(t.parallelism)||t.parallelism<1))throw new TypeError("options.parallelism, when provided, must be a positive number.");if(void 0!==t.fetchFn&&"function"!==typeof t.fetchFn)throw new TypeError("options.fetchFn, when provided, must be a function.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(e instanceof Request?e.url:e instanceof URL?e.href:e,e=>new vs(e.path,this._options)),this._offset=0,this._length=null,this._fileSizeDetermined=!1,this._sequentialBacking=null,this._url=e,this._options=t,this._getRetryDelay=null!=(i=t.getRetryDelay)?i:bs,this._requestInit=c({},t.requestInit);let a=null;if(null==(r=t.requestInit)?void 0:r.headers){const e=c({},ce(t.requestInit.headers)),i=Object.keys(e).find(e=>"range"===e.toLowerCase());void 0!==i&&(a=e[i],delete e[i],this._requestInit.headers=e)}if(e instanceof Request){const t=e.headers.get("Range");if(null!==t){null!=a||(a=t);const i=new Request(e);i.headers.delete("Range"),this._url=i}}if(null!==a){const e=ws(a);e&&(this._offset=e.offset,this._length=e.length)}this._orchestrator=new xs({maxCacheSize:null!=(n=t.maxCacheSize)?n:64*o(2,20),maxWorkerCount:null!=(s=t.parallelism)?s:2,runWorker:this._runWorker.bind(this),prefetchProfile:Is.network,handleUnhandledError:t.handleUnhandledError})}_getFileSize(){var e;if(!this._fileSizeDetermined)return null!==this._length?this._length:void 0;const t=this._sequentialBacking?this._sequentialBacking._endIndex:this._orchestrator.fileSize;return null===t?null!==this._length?this._length:null:J(t-this._offset,0,null!=(e=this._length)?e:1/0)}_read(e,t,i,r){var n;if(null!==this._length&&t>this._length)return null;const s=this._offset,a=this._sequentialBacking?this._sequentialBacking._read(s+e,s+t):this._orchestrator.read(s+e,s+t,Math.max(s+i,s),s+Math.min(r,null!=(n=this._length)?n:1/0)),o=e=>e?(e.offset-=this._offset,e):null;return Te(a)?a.then(o):o(a)}_runWorker(e){return d(this,null,function*(){for(var t;;){const r=new AbortController,n=yield ue(null!=(t=this._options.fetchFn)?t:fetch,this._url,le(this._requestInit,{headers:{Range:`bytes=${e.currentPos}-`},signal:r.signal}),this._getRetryDelay,()=>this._disposed);if(!n.ok)throw new Error(`Error fetching ${String(this._url)}: ${n.status} ${n.statusText}`);n.redirected&&(this.rootPath=n.url);e:if(null===this._orchestrator.fileSize&&(206===n.status||"basic"===n.type&&!n.headers.has("Content-Encoding"))){const t=n.headers.get("Content-Range");if(t){const e=/\/(\d+)/.exec(t);if(e){this._orchestrator.supplyFileSize(Number(e[1]));break e}}const i=n.headers.get("Content-Length");if(i){const t=206===n.status?e.currentPos:0;this._orchestrator.supplyFileSize(t+Number(i))}}if(this._fileSizeDetermined=!0,!n.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");if(206!==n.status){if(this._sequentialBacking)return void n.body.cancel();if(!this._usedForHls){const e=new URL(this._url instanceof Request?this._url.url:this._url,"undefined"!==typeof window?window.location.href:void 0);"null"===e.origin||e.pathname.endsWith(".m3u8")||e.pathname.endsWith(".m3u")||Ts.has(e.origin)||(Me._warn(`HTTP server (origin ${e.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. Alternatively, set maxCacheSize to Infinity in the UrlSource options to keep the entire resource in memory.`),Ts.add(e.origin))}return void this._transitionToSequentialMode(n.body)}const s=n.body.getReader();for(;;){if(e.currentPos>=e.targetPos||e.aborted)return r.abort(),void this._orchestrator.signalWorkerStoppedRunning(e);let t;try{t=yield s.read()}catch(i){if(this._disposed)throw i;const e=this._getRetryDelay(1,i,this._url);if(null!==e){Me._error("Error while reading response stream. Attempting to resume.",i),yield Re(1e3*e);break}throw i}if(e.aborted)continue;const{done:n,value:a}=t;if(n){if(e.currentPos>=e.targetPos)return void this._orchestrator.onWorkerFinished(e);if(e.strictTarget)break;return void this._orchestrator.onWorkerFinished(e)}this._dispatchRead(e.currentPos,e.currentPos+a.length),this._orchestrator.supplyWorkerData(e,a)}}})}_transitionToSequentialMode(e){let t=e.getReader(),i=0,r=0;const n=new ReadableStream({pull:e=>d(this,null,function*(){for(var n;;){let a;try{a=yield t.read()}catch(s){if(this._disposed)throw s;const e=this._getRetryDelay(1,s,this._url);if(null===e)throw s;Me._error("Error while reading response stream. Attempting to resume.",s),yield Re(1e3*e);const a=yield ue(null!=(n=this._options.fetchFn)?n:fetch,this._url,le(this._requestInit,{headers:{Range:`bytes=${i}-`}}),this._getRetryDelay,()=>this._disposed);if(!a.ok)throw new Error(`Error fetching ${String(this._url)}: ${a.status} ${a.statusText}`);if(!a.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");t=a.body.getReader(),r=206===a.status?0:i;continue}if(a.done)return void e.close();let o=a.value;if(r>0){const e=Math.min(r,o.length);r-=e,o=o.subarray(e)}if(0!==o.length)return i+=o.length,void e.enqueue(o)}}),cancel:()=>t.cancel()}),s=new Ps(n,{maxCacheSize:this._orchestrator.options.maxCacheSize,handleUnhandledError:this._options.handleUnhandledError});s._endIndex=this._orchestrator.fileSize,s._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. Because the HTTP server did not honor the range request, data can only be read sequentially, with old data being evicted from the cache. To fix this issue, either ensure your server responds to range requests with 206 Partial Content, or set maxCacheSize to Infinity in the UrlSource options. Note that the latter will store the entire file in the cache if needed, no matter how large.",s.on("read",({start:e,end:t})=>this._dispatchRead(e,t)),this._sequentialBacking=s;const a=new Set;for(const o of this._orchestrator.workers){for(const e of o.pendingSlices)a.add(e);o.aborted=!0,o.pendingSlices.length=0}for(const o of this._orchestrator.queuedReads)for(const e of o.pendingSlices)a.add(e);this._orchestrator.workers.length=0,this._orchestrator.queuedReads.length=0;for(const o of a){const e=s._read(o.start,o.start+o.bytes.length);Te(e)?e.then(e=>{e?(y(e.offset===o.start),o.resolve(e.bytes)):o.resolve(null)},e=>o.reject(e)):(y(null===e),o.resolve(null))}}_dispose(){this._orchestrator.dispose(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}}const Ss=/^bytes=(\d+)-(\d*)$/,ws=e=>{const t=Ss.exec(e.trim());if(!t)return null;const i=Number(t[1]),r=""===t[2]?null:Number(t[2]);return null!==r&&rthis._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);const i=W(this._cache,e,e=>e.start),r=-1!==i?this._cache[i]:null;if(r&&r.start<=e&&t<=r.end)return{bytes:r.bytes,view:r.view,offset:r.start};let n=e;const s=new Uint8Array(t-e);if(-1!==i)for(let c=i;c=t)break;const r=Math.max(e,i.start);r>n&&this._throwDueToCacheMiss();const a=Math.min(t,i.end);rn&&this._throwDueToCacheMiss();const{promise:a,resolve:o,reject:l}=V();return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:o,reject:l}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(e=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(t=>t.reject(e)),this._pendingSlices.length=0;else{if(!this._handleUnhandledError)throw e;this._handleUnhandledError(e)}})),a}_throwDueToCacheMiss(){throw new Error(this._cacheMissErrorMessage)}_pull(){return d(this,null,function*(){for(null!=this._reader||(this._reader=this._stream.getReader());this._currentIndex0;){const e=this._cache[0];if(this._maxRequestedIndex-e.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=t.byteLength}this._pulling=!1})}_dispose(){var e;for(const t of this._pendingSlices)t.reject(new Co);this._pendingSlices.length=0,this._cache.length=0,null==(e=this._reader)||e.cancel()}}const Is={fileSystem:(e,t)=>{const i=o(2,16);return{start:e=Math.floor((e-i)/i)*i,end:t=Math.ceil((t+i)/i)*i}},network:(e,t,i)=>{const r=o(2,16);e=Math.max(0,Math.floor((e-r)/r)*r);for(const n of i){const i=8*o(2,20),r=Math.max((n.startPos+n.targetPos)/2,n.targetPos-i);if(Se(e,t,r,n.targetPos)){const e=n.targetPos-n.startPos,r=Math.ceil((e+1)/i)*i,s=o(2,Math.ceil(Math.log2(e+1))),a=Math.min(s,r);t=Math.max(t,n.startPos+a)}}return{start:e,end:t=Math.max(t,e+ys)}}};class xs{constructor(e){this.options=e,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(e,t,i,r){var n;y(!this.disposed);const s=this.options.prefetchProfile(e,t,this.workers),a=Math.max(s.start,i),o=Math.min(s.end,null!=(n=this.fileSize)?n:1/0,r);y(a<=e&&t<=o);let l=null;const c=W(this.cache,e,e=>e.start),u=-1!==c?this.cache[c]:null;u&&u.start<=e&&t<=u.end&&(u.age=this.nextAge++,l={bytes:u.bytes,view:u.view,offset:u.start});const d=W(this.cache,a,e=>e.start),h=l?null:new Uint8Array(t-e);let f=0,m=a;const p=[];if(-1!==d){for(let i=d;i=o)break;if(r.end<=a)continue;const n=Math.max(a,r.start),s=Math.min(o,r.end);if(y(n<=s),m=h.length&&(l={bytes:h,view:I(h),offset:e}),0===p.length)return y(l),l;const{promise:g,resolve:k,reject:b}=V(),T=[];for(const y of p){const i=Math.max(e,y.start),r=Math.min(t,y.end);i===y.start&&r===y.end?T.push(y):ie.hole.start),i=-1!==t?this.queuedReads[t]:null;for(i&&y.start<=i.hole.end?(i.hole.end=Math.max(i.hole.end,y.end),i.strictTarget&&(i.strictTarget=e),v&&i.pendingSlices.push(v)):(t++,i={hole:{start:y.start,end:y.end},strictTarget:e,pendingSlices:v?[v]:[],age:this.nextAge++},this.queuedReads.splice(t,0,i));t+1i.hole.end)break;i.hole.end=Math.max(i.hole.end,e.hole.end),i.pendingSlices.push(...e.pendingSlices),i.strictTarget&&(i.strictTarget=e.strictTarget),i.age=Math.min(i.age,e.age),this.queuedReads.splice(t+1,1)}}}return l?g.catch(e=>{if(!this.disposed){if(!this.options.handleUnhandledError)throw e;this.options.handleUnhandledError(e)}}):(y(h),l=g.then(t=>t&&{bytes:t,view:I(t),offset:e})),l}checkHoleAgainstWorker(e,t,i){const r=o(2,17);if(Se(t.start-r,t.start,e.currentPos,e.targetPos)){e.targetPos=Math.max(e.targetPos,t.end);for(let t=0;t=this.options.maxWorkerCount){let e=null,t=null;for(let i=0;i{if(e.running=!1,e.pendingSlices.length>0)e.pendingSlices.forEach(e=>e.reject(t)),e.pendingSlices.length=0;else if(!e.aborted&&!this.disposed){if(!this.options.handleUnhandledError)throw t;this.options.handleUnhandledError(t)}}).finally(()=>{if(!e.running&&this.queuedReads.length>0){let e=0;for(let r=1;re.targetPos&&(e.targetPos=e.currentPos,this.checkQueuedReadsAgainstWorker(e));for(let a=0;at.start&&(t.start=s),t.end<=t.start&&(i.holes.splice(e,1),e--)}0===i.holes.length&&(i.resolve(i.bytes),e.pendingSlices.splice(a,1),a--)}for(let a=0;ae){r.resolve(null),t.pendingSlices.splice(i,1),i--;break}}}for(let t=0;t=e){for(const e of i.pendingSlices)e.resolve(null);this.queuedReads.splice(t,1),t--}else if(i.hole.end>e){i.hole.end=e,i.strictTarget=!0;for(let t=0;t=e&&(r.resolve(null),i.pendingSlices.splice(t,1),t--)}}}}signalWorkerStoppedRunning(e){e.running=!1,e.aborted||(e.pendingSlices.length=0)}onWorkerFinished(e){var t,i;const r=this.workers.indexOf(e);y(-1!==r),e.running=!1,this.workers.splice(r,1),null==(i=(t=this.options).onIdleWorkerRemoved)||i.call(t,e),null===this.fileSize&&this.supplyFileSize(e.currentPos);for(const n of e.pendingSlices)n.resolve(null)}insertIntoCache(e){if(0===this.options.maxCacheSize)return;let t=W(this.cache,e.start,e=>e.start)+1;if(t>0){const i=this.cache[t-1];if(i.end>=e.end)return;if(i.end>e.start){const r=new Uint8Array(e.end-i.start);r.set(i.bytes,0),r.set(e.bytes,e.start-i.start),this.currentCacheSize+=e.end-i.end,i.bytes=r,i.view=I(r),i.end=e.end,t--,e=i}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length;for(let i=t+1;i=t.end){this.cache.splice(i,1),this.currentCacheSize-=t.bytes.length,i--;continue}const r=new Uint8Array(t.end-e.start);r.set(e.bytes,0),r.set(t.bytes,t.start-e.start),this.currentCacheSize-=e.end-t.start,e.bytes=r,e.view=I(r),e.end=t.end,this.cache.splice(i,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let e=0,t=this.cache[0];for(let i=1;ithis._length)return null;const n=this._baseSource._read(this._offset+e,this._offset+t,this._offset+i,this._offset+r),s=e=>e?(e.offset-=this._offset,e):null;return Te(n)?n.then(s):s(n)}_dispose(){var e;null==(e=this._ref)||e.free()}ref(){return null!=this._ref||(this._ref=this._baseSource.ref()),super.ref()}}var Bs=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,n;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(n=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");n&&(r=function(){try{n.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t},Es=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});const _s=/^0[xX][0-9a-fA-F]+$/,Rs=/^data:.*;base64,/i;class Fs extends as{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){var e;return null!=(e=this.currentUpdateSegmentsPromise)?e:this.currentUpdateSegmentsPromise=(()=>d(this,null,function*(){try{const e=this.getRemainingWaitTimeMs();e>0&&(yield Re(e)),this.lastSegmentUpdateTime=performance.now(),yield this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}}))()}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}updateSegments(){return d(this,null,function*(){var e,t,i,r,n,s,a,l;let d=this.nextLines;if(this.nextLines=null,!d){const e={stack:[],error:void 0,hasError:!1};try{const t=Bs(e,yield this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),i=new Bo(t.source),r=yield i.requestEntireFile();y(r),d=$o(r,r.length,{ignore:ns}),t.source instanceof fs&&(this.rootPath=t.source.rootPath)}catch(F){e.error=F,e.hasError=!0}finally{Es(e)}}const h=!1!==(null==(e=this.input._formatOptions.hls)?void 0:e.offsetTimestampsByDateTime);let f=!1,m=0,p=null,g=null,k=null,b=0,v=null,S=null,w=null,P=null,x=null,C=null,B=!1,E=null!=(t=T(this.segments))?t:null;const _=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${e}'.`);let r=null;if(-1!==t&&(r=Number(e.slice(t+1)),!Number.isInteger(r)||r<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${e}'.`);return{length:i,offset:r}},R=e=>{b=e,E&&(y(null!==E.sequenceNumber),E.sequenceNumber0&&null!==C&&(m=b*C),B=!0);const t=e.slice(8),i=t.indexOf(","),r=-1===i?t:t.slice(0,i),n=Number(r);if(!Number.isFinite(n)||n<0)throw new Error(`Invalid #EXTINF tag duration '${r}'.`);g=n}else if(e.startsWith(Yn)){const t=new ss(e.slice(11)),i=t.get("uri");if(!i)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const r=t.get("byterange");let a=null;if(null!==r&&(a=_(r)),a&&null===a.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!E){const e={path:xe(this.rootPath,i),offset:null!=(n=null==a?void 0:a.offset)?n:0,length:null!=(s=null==a?void 0:a.length)?s:null};if("AES-128"===(null==k?void 0:k.method)&&!k.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");S={timestamp:m,unixEpochTimestamp:p,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:k,initSegment:null,lastProgramDateTimeSeconds:x}}g=null,null===P?w=null:P=null}else if(e.startsWith(Jn)){const t=new ss(e.slice(11)),i=t.get("method");if("NONE"===i)k=null;else if("AES-128"===i){const e=t.get("uri");if(!e)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let i=null;const r=t.get("iv");if(r){if(!_s.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(Ui);for(let t=0;t=8&&112===i[4]&&115===i[5]&&115===i[6]&&104===i[7]){const e=I(i).getUint32(0);r=Fi(i.subarray(8,Math.min(e,i.length)))}}k={method:i,psshBox:r}}}}else if(e.startsWith(Zn)){const t=e.slice(22),i=Number(t);if(!Number.isInteger(i)||i<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${t}'.`);R(i)}else if(e.startsWith(es)){const t=_(e.slice(17));if(null===t.offset){if(null===w)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");t.offset=w}P=t,w=t.offset+t.length}else if(e.startsWith(ts)){if(E)continue;const t=e.slice(25),i=Date.parse(t);if(!Number.isFinite(i))continue;const r=i/1e3;if(x===r)continue;if(null===x&&this.segments.length>0){const e=T(this.segments),t=r-(e.timestamp+e.duration);for(const i of this.segments)i.unixEpochTimestamp=i.timestamp+t,h&&(i.timestamp=i.unixEpochTimestamp)}x=r,p=r,h&&(m=r)}else if("#EXT-X-DISCONTINUITY"===e)v=null;else if(e.startsWith(is)){const t=e.slice(22),i=Number(t);if(!Number.isFinite(i)||i<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${t}'.`);this.refreshInterval=i,C=i}else{if("#EXT-X-ENDLIST"===e){this.streamHasEnded=!0;break}if(e.startsWith(rs)){"vod"===e.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==e)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");f=!0}}if(!f)throw new Error("Invalid M3U8 file; no #EXTM3U header.")})}getFirstSegment(){return d(this,null,function*(){var e;return 0===this.segments.length&&(yield this.runUpdateSegments()),null!=(e=this.segments[0])?e:null})}getSegmentAt(e,t){return d(this,null,function*(){0===this.segments.length&&(yield this.runUpdateSegments());let i=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const r=W(this.segments,e,e=>e.timestamp);if(-1===r)return null;if(r0;for(;;){if(re.segment===r);if(n)return n.age=this.nextInputCacheAge++,n.input;let s=null;(r.initSegment||r.firstSegment)&&(s=this.getInputForSegment(null!=(t=r.initSegment)?t:r.firstSegment));const a=u(c({},this.input._formatOptions),{isobmff:u(c({},this.input._formatOptions.isobmff),{resolveKeyId:(null==(i=this.input._formatOptions.isobmff)?void 0:i.resolveKeyId)&&(e=>{if(!r.encryption||"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method||!r.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(e);let t=e.psshBoxes;const{psshBox:i}=r.encryption;return null!==i.keyIds&&!i.keyIds.includes(e.keyId)||t.some(e=>Ai(e,i))||(t=[...t,i]),this.input._formatOptions.isobmff.resolveKeyId(u(c({},e),{psshBoxes:t}))})})}),l=new Io({source:new ps(r.location.path,e=>d(this,null,function*(){var t,i;y(e.isRoot);const n=u(c({},e),{isRoot:!1});let s;const a=r.location.offset>0||null!==r.location.length;if(r.encryption&&"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method)if("AES-128"===r.encryption.method){const e=r.encryption;y(e.iv);let t=yield this.input._getSourceCached(n);if(a){const e=t.source.slice(r.location.offset,null!=(i=r.location.length)?i:void 0).ref();t.free(),t=e}const l=((e,t,i)=>{let r=!1,n=0;const s=o(2,16),a=new Gi;return new ReadableStream({pull:o=>d(null,null,function*(){r||(a.init(yield t()),r=!0);const l=s+16;let c=e.requestSliceRange(n,0,l);if(Te(c)&&(c=yield c),!c||0===c.length)throw new Error("Invalid ciphertext.");const u=c.length;if(u%16!==0)throw new Error("Invalid ciphertext.");const d=u===l?u-16:u,h=Ro(c,d),f=new Uint8Array(d);for(let e=0;e16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const t=f.subarray(0,d-e);o.enqueue(t),o.close(),i()}}),cancel:()=>{i()}})})(new Bo(t.source),()=>d(this,null,function*(){const t={stack:[],error:void 0,hasError:!1};try{const i=Bs(t,yield this.input._getSourceCached({path:e.keyUri,isRoot:!1},Po),!1),r=new Bo(i.source),n=yield r.requestSlice(0,Ui);if(!n)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:Ro(n,Ui),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{Es(t)}}),()=>{t.free()});s=new Ps(l).ref()}else y(!1);else if(s=yield this.input._getSourceCached(n),a){const e=s.source.slice(r.location.offset,null!=(t=r.location.length)?t:void 0).ref();s.free(),s=e}return s})),formats:this.input._formats.filter(e=>!(e instanceof Js)),initInput:null!=s?s:void 0,formatOptions:a});l._onFormatDetermined=e=>{var t,i;if(("SAMPLE-AES"===(null==(t=r.encryption)?void 0:t.method)||"SAMPLE-AES-CTR"===(null==(i=r.encryption)?void 0:i.method))&&!e._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:r,input:l,age:this.nextInputCacheAge++});if(this.inputCache.length>4){const e=Be(this.inputCache,e=>e.age);y(-1!==e),this.inputCache.splice(e,1)}return l}getLiveRefreshInterval(){return d(this,null,function*(){return 0===this.getRemainingWaitTimeMs()&&(yield this.runUpdateSegments()),this.streamHasEnded?null:this.refreshInterval})}}class As extends Ei{constructor(e){super(e),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>d(this,null,function*(){y(this.input._rootSource instanceof fs);const e=yield this.input._reader.requestEntireFile();y(e);const t=$o(e,e.length,{ignore:ns}),{rootPath:i}=this.input._rootSource,r=[],n=[];for(let u=1;u"video"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],a=[...new Set(n.filter(e=>"audio"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],o=yield Promise.all(r.map((e,t)=>d(this,null,function*(){var r,o,l,c;const u=[],h=e.attributes.get("codecs");let f;if(h)f=h.split(",").map(e=>e.trim());else{const t=this.getSegmentedInputForPath(e.fullPath),i=yield t.getTrackBackings(),r=yield Promise.all(i.map(e=>d(this,null,function*(){return{track:e,codec:yield e.getCodec()}})));f=yield Promise.all(r.filter(e=>null!==e.codec).map(e=>e.track.getDecoderConfig().then(e=>e.codec)))}const m=e.attributes.get("video"),p=e.attributes.get("audio"),g=f.some(e=>ri.includes(yi(e))),k=f.some(e=>si.includes(yi(e)));if(null!==m&&!g){if(!s.includes(m))throw new Error(`Invalid M3U8 file; variant stream references video group "${m}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===m&&"video"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=xe(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"video"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});y(null!==a),f.push(a)}}if(null!==p&&!k){if(!a.includes(p))throw new Error(`Invalid M3U8 file; variant stream references audio group "${p}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===p&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=xe(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"audio"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});y(null!==a),f.push(a)}}f=[...new Set(f)];let b=null,T=null;const v=e.attributes.getAsNumber("bandwidth");y(null!==v);const S=e.attributes.getAsNumber("average-bandwidth"),w=e.attributes.get("name");for(const i of f){const d=yi(i);if(null!==d)if(ri.includes(d)){if(null!==b)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");b=i;const a=e.attributes.get("video");if(null===a){const i=e.attributes.get("resolution");let r=null,n=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(r=Number(e[1]),n=Number(e[2]))}u.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:Z,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:b,pairingMask:BigInt("1")<0?r:null}})}else{if(!a.includes(r))throw new Error(`Invalid M3U8 file; variant stream references audio group "${r}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of n){const n=i.attributes.get("group-id"),s=i.attributes.get("type");if(n!==r||"audio"!==s.toLowerCase())continue;const a=null!=(l=i.attributes.get("channels"))?l:e.attributes.get("channels"),o=null!==a?Number(a.split("/")[0]):null;u.push({id:-1,demuxer:this,backingTrack:null,default:Os(i.attributes),autoselect:Os(i.attributes)||Ls(i.attributes),languageCode:zs(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:null!=(c=i.fullPath)?c:e.fullPath,fullCodecString:T,pairingMask:BigInt("1")<0?o:null}})}}}}return u}))),l=[],c=e=>{var t,i;const r=l.find(t=>t.fullPath===e.fullPath&&t.info.type===e.info.type);r?(r.pairingMask|=e.pairingMask,r.default||(r.default=e.default),r.autoselect||(r.autoselect=e.autoselect),r.lineNumber=Math.min(r.lineNumber,e.lineNumber),null!==e.peakBitrate&&(r.peakBitrate=Math.max(null!=(t=r.peakBitrate)?t:-1/0,e.peakBitrate)),null!==e.averageBitrate&&(r.averageBitrate=Math.max(null!=(i=r.averageBitrate)?i:-1/0,e.averageBitrate)),r.languageCode===Z&&(r.languageCode=e.languageCode)):(e.id=l.length+1,l.push(e))};for(const u of o)for(const e of u)c(e);l.sort((e,t)=>e.lineNumber-t.lineNumber),this.trackBackings=[];for(const u of l)"video"===u.info.type?this.trackBackings.push(new Ms(u)):this.trackBackings.push(new Ns(u));this.internalTracks=l}))()}getTrackBackings(){return d(this,null,function*(){return yield this.readMetadata(),y(this.trackBackings),this.trackBackings})}getSegmentedInputForPath(e){let t=this.segmentedInputs.find(t=>t.path===e);if(t)return t;let i=null;if(this.internalTracks){i=this.internalTracks.filter(t=>t.fullPath===e).map(e=>({id:e.id,type:e.info.type}))}return t=new Fs(this,e,i,null),this.segmentedInputs.push(t),t}getMetadataTags(){return d(this,null,function*(){return{}})}getMimeType(){return d(this,null,function*(){return Kn})}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class Ds{constructor(e){this.internalTrack=e,this.hydrationPromise=null}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>d(this,null,function*(){const e=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let t=null;const i=(yield e.getTrackBackings()).filter(e=>e.getType()===this.getType());if(1===i.length)t=i[0];else if(this instanceof Ms){for(const r of i)if((yield r.getCodec())===this.getCodec()){t=r;break}}else{y(this instanceof Ns);for(const e of i)if((yield e.getCodec())===this.getCodec()){t=e;break}}if(!t)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=t}))()}delegate(e){return this.internalTrack.backingTrack?e():this.hydrate().then(e)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return u(c({},Le),{default:this.internalTrack.autoselect,primary:this.internalTrack.default})}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){y(this.internalTrack.demuxer.internalTracks);const e=this.internalTrack.info.type;let t=0;for(const i of this.internalTrack.demuxer.internalTracks)if(i.info.type===e&&t++,i===this.internalTrack)break;return t}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(e){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(e))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}getDurationFromMetadata(e){return d(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(e)})}getLiveRefreshInterval(){return d(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()})}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}getFirstPacket(e){return d(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(e)})}getPacket(e,t){return d(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getPacket(e,t)})}getKeyPacket(e,t){return d(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(e,t)})}getNextPacket(e,t){return d(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextPacket(e,t)})}getNextKeyPacket(e,t){return d(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(e,t)})}}class Ms extends Ds{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return yi(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}getColorSpace(){return d(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getColorSpace()})}canBeTransparent(){return d(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.canBeTransparent()})}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return d(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getDecoderConfig()})}}class Ns extends Ds{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return yi(this.internalTrack.fullCodecString)}getNumberOfChannels(){return null!==this.internalTrack.info.numberOfChannels?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return d(this,null,function*(){return yield this.hydrate(),this.backingAudioTrack.getDecoderConfig()})}}const Os=e=>{const t=e.get("default");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},Ls=e=>{const t=e.get("autoselect");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},zs=e=>{if(null===e)return Z;const t=e.split("-")[0];return t||Z};class Us{constructor(){this._isIsobmff=!1}}class qs extends Us{constructor(){super(...arguments),this._isIsobmff=!0}_getMajorBrand(e){return d(this,null,function*(){let t=e._reader.requestSlice(0,12);if(Te(t)&&(t=yield t),!t)return null;t.skip(4);const i=Xo(t,4);return"ftyp"!==i&&"styp"!==i?null:Xo(t,4)})}_createDemuxer(e){return new Qi(e)}}class Ws extends qs{_canReadInput(e){return d(this,null,function*(){const t=yield this._getMajorBrand(e);if(null!==t)return"qt "!==t;let i=0;for(let r=0;r<10;r++){let t=e._reader.requestSlice(i,8);if(Te(t)&&(t=yield t),!t)return!1;let r=Lo(t),n=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(Te(t)&&(t=yield t),!t)return!1;r=Wo(t),n=16}if(r8)return!1;if(Sr(i,r)!==mr.EBML)return!1;const n=Pr(i);if("number"!==typeof n)return!1;let s=e._reader.requestSlice(i.filePos,n);if(Te(s)&&(s=yield s),!s)return!1;const a=i.filePos;for(;s.filePos<=a+n-2;){const e=Ir(s);if(!e)break;const{id:i,size:r}=e,n=s.filePos;if(void 0===r)return!1;switch(i){case mr.EBMLVersion:if(1!==Sr(s,r))return!1;break;case mr.EBMLReadVersion:if(1!==Sr(s,r))return!1;break;case mr.DocType:if(xr(s,r)!==t)return!1;break;case mr.DocTypeVersion:if(Sr(s,r)>4)return!1}s.filePos=n+r}return!0})}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new en(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class js extends Vs{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class Ks extends Us{_canReadInput(e){return d(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,el);if(Te(i)&&(i=yield i),!i)break;const r=nl(i);if(!r)break;t=i.filePos+r.size}const i=yield sn(e._reader,t,t+4096);if(!i)return!1;const r=i.header,n=wi(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+n,4);if(Te(s)&&(s=yield s),!s)return!1;const a=Lo(s);if(a===vi||a===Si)return!0;t=i.startPos+i.header.totalSize;const o=yield sn(e._reader,t,t+4);if(!o)return!1;const l=o.header;return r.channel===l.channel&&r.sampleRate===l.sampleRate})}_createDemuxer(e){return new an(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class Xs extends Us{_canReadInput(e){return d(this,null,function*(){let t=e._reader.requestSlice(0,12);if(Te(t)&&(t=yield t),!t)return!1;const i=Xo(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===Xo(t,4)})}_createDemuxer(e){return new Sn(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class $s extends Us{_canReadInput(e){return d(this,null,function*(){let t=e._reader.requestSlice(0,4);return Te(t)&&(t=yield t),!!t&&"OggS"===Xo(t,4)})}_createDemuxer(e){return new gn(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class Gs extends Us{_canReadInput(e){return d(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,el);if(Te(i)&&(i=yield i),!i)break;const r=nl(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return Te(i)&&(i=yield i),!!i&&"fLaC"===Xo(i,4)})}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new En(e)}}class Qs extends Us{_canReadInput(e){return d(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,el);if(Te(i)&&(i=yield i),!i)break;const r=nl(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(Te(i)&&(i=yield i),!i)return!1;const r=In(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),Te(i)&&(i=yield i),!i)return!1;const n=In(i);return!!n&&(r.objectType===n.objectType&&r.samplingFrequencyIndex===n.samplingFrequencyIndex&&r.channelConfiguration===n.channelConfiguration)})}_createDemuxer(e){return new Cn(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class Ys extends Us{_canReadInput(e){return d(this,null,function*(){let t=e._reader.requestSlice(0,205);if(Te(t)&&(t=yield t),!t)return!1;const i=Ro(t,205);return 71===i[0]&&71===i[188]||(71===i[0]&&71===i[204]||71===i[4]&&71===i[196])})}_createDemuxer(e){return new On(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class Js extends Us{_canReadInput(e){return d(this,null,function*(){let t=e._reader.requestSlice(0,7);if(Te(t)&&(t=yield t),!t)return!1;if(!("#EXTM3U"===Xo(t,7)))return!1;if(!(e._rootSource instanceof fs))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return e._rootSource._usedForHls=!0,!0})}_createDemuxer(e){return new As(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return Kn}}const Zs=new Ws,ea=new Hs,ta=new Vs,ia=new js,ra=new Ks,na=new Xs,sa=new $s,aa=new Qs,oa=new Gs,la=new Ys,ca=new Js,ua=[ca,Zs,ea,ta,ia,na,sa,oa,ra,aa,la],da=[ca,Zs,ea,ra,aa,la];var ha=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});Pe();let fa=-1/0,ma=-1/0,pa=null;"undefined"!==typeof FinalizationRegistry&&(pa=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-fa>=1e3&&(Me._error("A VideoSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your VideoSamples as soon as you're done using them."),fa=t),"undefined"!==typeof VideoFrame&&e.data instanceof VideoFrame&&e.data.close()):(t-ma>=1e3&&(Me._error("An AudioSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your AudioSamples as soon as you're done using them."),ma=t),"undefined"!==typeof AudioData&&e.data instanceof AudioData&&e.data.close())}));class ga{constructor(){this._referenceCount=0,this._lastAllocationBuffer=null}}const ka=["I420","I420P10","I420P12","I420A","I420AP10","I420AP12","I422","I422P10","I422P12","I422A","I422AP10","I422AP12","I444","I444P10","I444P12","I444A","I444AP10","I444AP12","NV12","RGBA","RGBX","BGRA","BGRX"],ya=new Set(ka);class ba{get codedWidth(){return this.visibleRect.width}get codedHeight(){return this.visibleRect.height}get displayWidth(){return this.rotation%180===0?this.squarePixelWidth:this.squarePixelHeight}get displayHeight(){return this.rotation%180===0?this.squarePixelHeight:this.squarePixelWidth}get microsecondTimestamp(){return Math.trunc(oe*this.timestamp)}get microsecondDuration(){return Math.trunc(oe*this.duration)}get hasAlpha(){return this.format&&this.format.includes("A")}constructor(e,t){var i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,S,w,I,x,C,B,E,_,R,F,A;if(this._closed=!1,e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e)){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0===t.format||!ya.has(t.format))throw new TypeError("init.format must be one of: "+ka.join(", "));if(!Number.isInteger(t.codedWidth)||t.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(t.codedHeight)||t.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.layout){if(!Array.isArray(t.layout))throw new TypeError("init.layout, when provided, must be an array.");for(const e of t.layout){if(!e||"object"!==typeof e||Array.isArray(e))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(e.offset)||e.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(e.stride)||e.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==t.visibleRect&&_e(t.visibleRect,"init.visibleRect"),void 0!==t.displayWidth&&(!Number.isInteger(t.displayWidth)||t.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(void 0!==t.displayHeight&&(!Number.isInteger(t.displayHeight)||t.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(void 0!==t.displayWidth!==(void 0!==t.displayHeight))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=t.format,this.rotation=null!=(i=t.rotation)?i:0,this.timestamp=t.timestamp,this.duration=null!=(r=t.duration)?r:0;const m=null!=(n=t.layout)?n:Ea(t.format,t.codedWidth,t.codedHeight);let p=null!=(s=t.colorSpace)?s:null;null===p&&(p="RGBA"===this.format||"RGBX"===this.format||"BGRA"===this.format||"BGRX"===this.format?{primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:{primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:null!=(o=null==(a=t.visibleRect)?void 0:a.left)?o:0,top:null!=(c=null==(l=t.visibleRect)?void 0:l.top)?c:0,width:null!=(d=null==(u=t.visibleRect)?void 0:u.width)?d:t.codedWidth,height:null!=(f=null==(h=t.visibleRect)?void 0:h.height)?f:t.codedHeight},void 0!==t.displayWidth?(this.squarePixelWidth=this.rotation%180===0?t.displayWidth:t.displayHeight,this.squarePixelHeight=this.rotation%180===0?t.displayHeight:t.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=t._doNotCopy?P(e):P(e).slice(),this._layout=m,this.colorSpace=new Pa(p)}else if("undefined"!==typeof VideoFrame&&e instanceof VideoFrame){if(void 0!==(null==t?void 0:t.rotation)&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(void 0!==(null==t?void 0:t.timestamp)&&!Number.isFinite(null==t?void 0:t.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(void 0!==(null==t?void 0:t.duration)&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");void 0!==(null==t?void 0:t.visibleRect)&&_e(t.visibleRect,"init.visibleRect"),this._data=e,this._layout=null,this.format=e.format,this.visibleRect={left:null!=(p=null==(m=e.visibleRect)?void 0:m.x)?p:0,top:null!=(k=null==(g=e.visibleRect)?void 0:g.y)?k:0,width:null!=(b=null==(y=e.visibleRect)?void 0:y.width)?b:e.codedWidth,height:null!=(v=null==(T=e.visibleRect)?void 0:T.height)?v:e.codedHeight},this.rotation=null!=(S=null==t?void 0:t.rotation)?S:0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=null!=(w=null==t?void 0:t.timestamp)?w:e.timestamp/1e6,this.duration=null!=(x=null==t?void 0:t.duration)?x:(null!=(I=e.duration)?I:0)/1e6,this.colorSpace=new Pa(e.colorSpace)}else if("undefined"!==typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!==typeof SVGImageElement&&e instanceof SVGImageElement||"undefined"!==typeof ImageBitmap&&e instanceof ImageBitmap||"undefined"!==typeof HTMLVideoElement&&e instanceof HTMLVideoElement||"undefined"!==typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!==typeof OffscreenCanvas&&e instanceof OffscreenCanvas){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.visibleRect&&_e(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new ba(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*oe),duration:Math.trunc((null!=(C=t.duration)?C:0)*oe)||void 0,visibleRect:t.visibleRect&&{x:t.visibleRect.left,y:t.visibleRect.top,width:t.visibleRect.width,height:t.visibleRect.height}}),t);let i=0,r=0;if("naturalWidth"in e?(i=e.naturalWidth,r=e.naturalHeight):"videoWidth"in e?(i=e.videoWidth,r=e.videoHeight):"width"in e&&(i=Number(e.width),r=Number(e.height)),!i||!r)throw new TypeError("Could not determine dimensions.");const n=null!=(B=t.visibleRect)?B:{left:0,top:0,width:i,height:r},s=new OffscreenCanvas(n.width,n.height),a=s.getContext("2d",{alpha:pe(),willReadFrequently:!0});if(!a)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");a.drawImage(e,-n.left,-n.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:n.width,height:n.height},this.squarePixelWidth=n.width,this.squarePixelHeight=n.height,this.rotation=null!=(E=t.rotation)?E:0,this.timestamp=t.timestamp,this.duration=null!=(_=t.duration)?_:0,this.colorSpace=new Pa({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof ga))throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=e,e._referenceCount++,this.format=e.getFormat(),null!==this.format&&!ka.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:e.getCodedWidth(),height:e.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=e.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=e.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=null!=(R=t.rotation)?R:0,this.timestamp=t.timestamp,this.duration=null!=(F=t.duration)?F:0,this.colorSpace=e.getColorSpace()}this.encodeOptions=null!=(A=null==t?void 0:t.encodeOptions)?A:{},this.pixelAspectRatio=Ee({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),null==pa||pa.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return y(null!==this._data),this._data instanceof ga?new ba(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):Ia(this._data)?new ba(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(y(this._layout),new ba(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new ba(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(null==pa||pa.unregister(this),this._data instanceof ga?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Ia(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){var t;if(Ba(e),this._closed)throw new Error("VideoSample is closed.");if(null==(null!=(t=e.format)?t:this.format))throw new Error("Cannot get allocation size when format is null.");if(Ia(this._data))return this._data.allocationSize(e);return Ra(this,e).allocationSize}copyTo(e){return d(this,arguments,function*(e,t={}){var i,r;if(!N(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(Ba(t),this._closed)throw new Error("VideoSample is closed.");if(null==(null!=(i=t.format)?i:this.format))throw new Error("Cannot copy video sample data when format is null.");if(y(null!==this._data),Ia(this._data))return this._data.copyTo(e,t);if(t.format&&!["RGBA","RGBX","BGRA","BGRX"].includes(this.format)&&["RGBA","RGBX","BGRA","BGRX"].includes(t.format)){if(!(this._data instanceof ga)){if("undefined"===typeof VideoFrame)throw new Error("For this sample, converting from a non-RGB to an RGB format requires VideoFrame to be defined.");const i=this.toVideoFrame(),r=yield i.copyTo(e,t);return i.close(),r}{const i={stack:[],error:void 0,hasError:!1};try{const n=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,n;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(n=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");n&&(r=function(){try{n.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t}(i,yield this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation},null!=(r=t.colorSpace)?r:"srgb"),!1);if(!(n instanceof ba))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(n.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${n.format}' instead.`);return yield n.copyTo(e,t)}catch(u){i.error=u,i.hasError=!0}finally{ha(i)}}}const n=Ra(this,t);y(this.format);const s=P(e);if(s.byteLength!(e.data instanceof Uint8Array)||!Number.isInteger(e.stride)||e.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');o=e}else if(this._data instanceof Uint8Array)y(this._layout),y(this._layout.length===a.length),o=this._layout.map((e,t)=>{const i=Math.ceil(this.codedHeight/a[t].heightDivisor);return{data:this._data.subarray(e.offset,e.offset+e.stride*i),stride:e.stride}});else{const e=this._data.getContext("2d");y(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);o=[{data:P(t.data),stride:4*this.codedWidth}]}const l=[],c=a.length;for(let d=0;di.byteLength)throw new Error("Source buffer OOB read.");if(a+c>s.byteLength)throw new Error("Destination buffer OOB write.");const n=i.subarray(r,r+c);s.set(n,a),r+=t,a+=e.destinationStride}l.push(u)}if(void 0!==t.format){const e=this.format.startsWith("RGB")!==t.format.startsWith("RGB"),i=this.format.includes("X")&&t.format.includes("A");if(e||i)for(let t=0;te+t.data.byteLength,0),i=new Uint8Array(t);let r=0;const n=[];for(const s of e)i.set(s.data,r),n.push(r),r+=s.data.byteLength;return new VideoFrame(i,{format:this.format,layout:e.map((e,t)=>({offset:n[t],stride:e.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}return Ia(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(y(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(e,t,i,r,n,s,a,o,l){let c=0,u=0,d=this.displayWidth,h=this.displayHeight,f=0,m=0,p=this.displayWidth,g=this.displayHeight;if(void 0!==s?(c=t,u=i,d=r,h=n,f=s,m=a,void 0!==o?(p=o,g=l):(p=d,g=h)):(f=t,m=i,void 0!==r&&(p=r,g=n)),!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(c))throw new TypeError("sx must be a number.");if(!Number.isFinite(u))throw new TypeError("sy must be a number.");if(!Number.isFinite(d)||d<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(h)||h<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(f))throw new TypeError("dx must be a number.");if(!Number.isFinite(m))throw new TypeError("dy must be a number.");if(!Number.isFinite(p)||p<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(g)||g<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:c,sy:u,sWidth:d,sHeight:h}=this._rotateSourceRegion(c,u,d,h,this.rotation));const k=this.toCanvasImageSource();e.save();const y=f+p/2,b=m+g/2;e.translate(y,b),e.rotate(this.rotation*Math.PI/180);const T=this.rotation%180===0?1:p/g;e.scale(1/T,T),e.drawImage(k,c,u,d,h,-p/2,-g/2,p,g),e.restore()}drawWithFit(e,t){var i,r,n,s,a,o,l,c,u;if(!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&Ca(t.crop,"options.");const d=e.canvas.width,h=e.canvas.height,f=null!=(i=t.rotation)?i:this.rotation,[m,p]=f%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let g,k,y,b,T=t.crop;T&&(T=xa(T,m,p));const{sx:v,sy:S,sWidth:w,sHeight:P}=this._rotateSourceRegion(null!=(n=null==(r=t.crop)?void 0:r.left)?n:0,null!=(a=null==(s=t.crop)?void 0:s.top)?a:0,null!=(l=null==(o=t.crop)?void 0:o.width)?l:m,null!=(u=null==(c=t.crop)?void 0:c.height)?u:p,f);if("fill"===t.fit)g=0,k=0,y=d,b=h;else{const[e,i]=t.crop?[t.crop.width,t.crop.height]:[m,p],r="contain"===t.fit?Math.min(d/e,h/i):Math.max(d/e,h/i);y=e*r,b=i*r,g=(d-y)/2,k=(h-b)/2}e.save();const I=f%180===0?1:y/b;e.translate(d/2,h/2),e.rotate(f*Math.PI/180),e.scale(1/I,I),e.translate(-d/2,-h/2),e.drawImage(this.toCanvasImageSource(),v,S,w,P,g,k,y,b),e.restore()}_rotateSourceRegion(e,t,i,r,n){return 90===n?[e,t,i,r]=[t,this.squarePixelHeight-e-i,r,i]:180===n?[e,t]=[this.squarePixelWidth-e-i,this.squarePixelHeight-t-r]:270===n&&([e,t,i,r]=[this.squarePixelWidth-t-r,e,r,i]),{sx:e,sy:t,sWidth:i,sHeight:r}}_drawWithFitAndMipmapping(e,t,i){const r=e.width,n=e.height,[s,a]=i.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],l=i.crop?i.crop.width:s,c=i.crop?i.crop.height:a;let u=0;2*r0?wa(d,h):{canvas:e,context:t,isNew:i.targetIsFresh};m.imageSmoothingQuality="high",i.fillBlack?(m.fillStyle="black",m.fillRect(0,0,d,h)):p||m.clearRect(0,0,d,h),this.drawWithFit(m,{fit:i.fit,rotation:i.rotation,crop:i.crop}),m.globalCompositeOperation="copy";for(let g=u;g>1;g--){const e=r*o(2,g),t=n*o(2,g);m.drawImage(f,0,0,e,t,0,0,e/2,t/2)}m.globalCompositeOperation="source-over",u>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(f,0,0,2*r,2*n,0,0,r,n),t.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(y(null!==this._data),this._data instanceof ga||this._data instanceof Uint8Array){const e=this.toVideoFrame();return queueMicrotask(()=>e.close()),e}return this._data}transform(e){return d(this,null,function*(){var t,i,r,n,s;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.width&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(void 0!==e.height&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(void 0!==e.roundDimensionsTo&&(!Number.isInteger(e.roundDimensionsTo)||e.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(void 0!==e.fit&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==e.width&&void 0!==e.height&&void 0===e.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==e.rotate&&![0,90,180,270].includes(e.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(void 0!==e.crop&&Ca(e.crop,"options."),void 0!==e.alpha&&!["keep","discard"].includes(e.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");const a=b(this.rotation+(null!=(t=e.rotate)?t:0)),[o,l]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let c=e.crop;c&&(c=xa(c,o,l));const u=c?c.width:o,d=c?c.height:l,h=u/d;let f,m;void 0!==e.width&&void 0===e.height?(f=e.width,m=f/h):void 0===e.width&&void 0!==e.height?(m=e.height,f=m*h):void 0!==e.width&&void 0!==e.height?(f=e.width,m=e.height):(f=u,m=d),f=te(f,null!=(i=e.roundDimensionsTo)?i:1),m=te(m,null!=(r=e.roundDimensionsTo)?r:1);const p={width:f,height:m,fit:null!=(n=e.fit)?n:"fill",rotation:a,crop:null!=c?c:{left:0,top:0,width:o,height:l},alpha:null!=(s=e.alpha)?s:"keep"};for(const e of Ta){let t=e(this,p);if(Te(t)&&(t=yield t),null!==t)return t}const{canvas:g,context:k,isNew:y}=wa(p.width,p.height);return this._drawWithFitAndMipmapping(g,k,{fit:p.fit,rotation:p.rotation,crop:p.crop,targetIsFresh:y,fillBlack:"discard"===p.alpha}),new ba(g,{timestamp:this.timestamp,duration:this.duration,rotation:0})})}setRotation(e){if(![0,90,180,270].includes(e))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}setDuration(e){if(!Number.isFinite(e)||e<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=e}setEncodeOptions(e){if(!e||"object"!==typeof e)throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=e}[Symbol.dispose](){this.close()}}const Ta=[],va=[];let Sa=0;const wa=(e,t)=>{for(const n of va)if(n.canvas.width===e&&n.canvas.height===t)return n.age=Sa++,{canvas:n.canvas,context:n.context,isNew:!1};let i;if("undefined"!==typeof OffscreenCanvas)i=new OffscreenCanvas(e,t);else{if("undefined"===typeof window||"undefined"===typeof document)throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");i=document.createElement("canvas"),i.width=e,i.height=t}const r=i.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return va.length>=3&&va.splice(Be(va,e=>e.age),1),va.push({canvas:i,context:r,age:Sa++}),{canvas:i,context:r,isNew:!0}};class Pa{constructor(e){var t,i,r,n;if(void 0!==e){if(!e||"object"!==typeof e)throw new TypeError("init.colorSpace, when provided, must be an object.");const t=Object.keys(B);if(null!=e.primaries&&!t.includes(e.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${t.join(", ")}.`);const i=Object.keys(_);if(null!=e.transfer&&!i.includes(e.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${i.join(", ")}.`);const r=Object.keys(F);if(null!=e.matrix&&!r.includes(e.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${r.join(", ")}.`);if(null!=e.fullRange&&"boolean"!==typeof e.fullRange)throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=null!=(t=null==e?void 0:e.primaries)?t:null,this.transfer=null!=(i=null==e?void 0:e.transfer)?i:null,this.matrix=null!=(r=null==e?void 0:e.matrix)?r:null,this.fullRange=null!=(n=null==e?void 0:e.fullRange)?n:null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}const Ia=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,xa=(e,t,i)=>{const r=Math.min(e.left,t),n=Math.min(e.top,i),s=Math.min(e.width,t-r),a=Math.min(e.height,i-n);return y(s>=0),y(a>=0),{left:r,top:n,width:s,height:a}},Ca=(e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},Ba=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!==typeof e.format)throw new TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw new TypeError("options.layout, when provided, must be an array.");for(const t of e.layout){if(!t||"object"!==typeof t)throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==e.rect){if(!e.rect||"object"!==typeof e.rect)throw new TypeError("options.rect, when provided, must be an object.");if(void 0!==e.rect.x&&(!Number.isInteger(e.rect.x)||e.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(void 0!==e.rect.y&&(!Number.isInteger(e.rect.y)||e.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(void 0!==e.rect.width&&(!Number.isInteger(e.rect.width)||e.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(void 0!==e.rect.height&&(!Number.isInteger(e.rect.height)||e.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},Ea=(e,t,i)=>{const r=_a(e),n=[];let s=0;for(const a of r){const e=Math.ceil(t/a.widthDivisor),r=Math.ceil(i/a.heightDivisor),o=e*a.sampleBytes,l=o*r;n.push({offset:s,stride:o}),s+=l}return n},_a=e=>{const t=(e,t,i,r,n)=>{const s=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:i,heightDivisor:r},{sampleBytes:t,widthDivisor:i,heightDivisor:r}];return n&&s.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),s};switch(e){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:$(e),y(!1)}},Ra=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,n=Fa(i,r,e.codedWidth,e.codedHeight,e.format),s=t.layout;let a;if(t.format&&t.format!==e.format){if(!["RGBA","RGBX","BGRA","BGRX"].includes(t.format))throw new Error("NotSupportedError: Invalid destination format.");a=t.format}else a=e.format;return Da(n,a,s)},Fa=(e,t,i,r,n)=>{const s=c({},e);if(void 0!==t){if(0===t.width||0===t.height)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>i)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");s.x=t.x||0,s.y=t.y||0,s.width=t.width||0,s.height=t.height||0}if(!Aa(n,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},Aa=(e,t)=>{if(null===e)return!0;const i=_a(e);for(let r=0;r{const r=_a(t),n=r.length;if(void 0!==i&&i.length!==n)throw new TypeError(`Layout must have ${n} planes.`);let s=0;const a=[],o=[];for(let l=0;l4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(h),s=Math.max(s,h);for(let e=0;e 0.");if(!Number.isInteger(e.numberOfChannels)||0===e.numberOfChannels)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(null==e?void 0:e.timestamp))throw new TypeError("init.timestamp must be a number.");const t=e.data.byteLength/(La(e.format)*e.numberOfChannels);if(!Number.isInteger(t))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");let i;if(this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=t,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp,this.duration=t/e.sampleRate,e.data instanceof ArrayBuffer)i=new Uint8Array(e.data);else{if(!ArrayBuffer.isView(e.data))throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");i=new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}const r=this.numberOfFrames*this.numberOfChannels*La(this.format);if(i.byteLength=this.numberOfFrames)throw new RangeError("frameOffset out of range");const s=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-n;if(s>this.numberOfFrames-n)throw new RangeError("frameCount out of range");const a=La(r),o=za(r);if(o&&e.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!o&&0!==e.planeIndex)throw new RangeError("planeIndex out of range");return(o?s:s*this.numberOfChannels)*a}copyTo(e,t){if(!N(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!Ma.has(t.format))throw new TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:i,frameCount:r,frameOffset:n}=t;let{planeIndex:s}=t,a=this.format;const o=null!=i?i:this.format;if(!o)throw new Error("Destination format not determined");const l=this.numberOfFrames,c=this.numberOfChannels,u=null!=n?n:0;if(u>=l)throw new RangeError("frameOffset out of range");const d=void 0!==r?r:l-u;if(d>l-u)throw new RangeError("frameCount out of range");const h=La(o),f=za(o);if(f&&s>=c)throw new RangeError("planeIndex out of range");if(!f&&0!==s)throw new RangeError("planeIndex out of range");const m=(f?d:d*c)*h;if(e.byteLength2&&o!==a)return void Ha(this._data,p,a,o,c,s,u,d);try{return void this._data.copyTo(e,{planeIndex:s,frameOffset:u,frameCount:d,format:o})}catch(w){if("f32-planar"===o)throw w;a="f32-planar"}}const k=Ua(a),b=La(a),T=za(a);let v;if(this._data instanceof Na){const e=e=>{const t=this._data.getDataPlane(e);if(!(t instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const i=l*b*(T?1:c);if(t.byteLength!==i)throw new TypeError(`Data plane ${e} has invalid size. Expected exactly ${i} bytes, got ${t.byteLength} bytes.`);return t};if(T)if(f)v=e(s),s=0;else{v=new Uint8Array(l*b*c);for(let t=0;tthis.numberOfFrames)throw new RangeError("startFrame out of range.");if(t>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(t0)for(let r=0;r0&&this.copyTo(n,{planeIndex:0,format:this.format,frameOffset:e,frameCount:i});return new Oa({data:n,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(null==pa||pa.unregister(this),this._data instanceof Na?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Wa(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof Na?this._createAudioDataFromData():Wa(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(za(this.format)){const e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels);for(let i=0;i0;){const n=Math.min(s,o),l=new Float32Array(i*n);for(let t=0;t0;){const n=Math.min(s,o),c=new Float32Array(i*n);for(let t=0;t{switch(e){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},za=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},Ua=e=>{switch(e){case"u8":case"u8-planar":return(e,t)=>(e.getUint8(t)-128)/128;case"s16":case"s16-planar":return(e,t)=>e.getInt16(t,!0)/32768;case"s32":case"s32-planar":return(e,t)=>e.getInt32(t,!0)/2147483648;case"f32":case"f32-planar":return(e,t)=>e.getFloat32(t,!0)}},qa=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,J(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,J(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,J(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},Wa=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,Ha=(e,t,i,r,n,s,a,o)=>{const l=Ua(i),c=qa(r),u=La(i),d=La(r),h=za(i);if(za(r))if(h){const r=new ArrayBuffer(o*u),n=I(r);e.copyTo(r,{planeIndex:s,frameOffset:a,frameCount:o,format:i});for(let e=0;e{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!==typeof e.metadataOnly)throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!==typeof e.verifyKeyPackets)throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(void 0!==e.skipLiveWait&&"boolean"!==typeof e.skipLiveWait)throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},Xa=e=>{if(!Ie(e))throw new TypeError("timestamp must be a number.")},$a=(e,t,i)=>i.verifyKeyPackets?t.then(t=>d(null,null,function*(){if(!t||"delta"===t.type)return t;const i=yield e.determinePacketType(t);return i&&(t.type=i),t})):t;class Ga{constructor(e){if(!(e instanceof uo))throw new TypeError("track must be an InputTrack.");this._track=e}getFirstPacket(){return d(this,arguments,function*(e={}){if(Ka(e),this._track.input._disposed)throw new Co;return $a(this._track,this._track._backing.getFirstPacket(e),e)})}getFirstKeyPacket(){return d(this,arguments,function*(e={}){Ka(e);const t=yield this.getFirstPacket(e);return t?"key"===t.type?t:this.getNextKeyPacket(t,e):null})}getPacket(e){return d(this,arguments,function*(e,t={}){if(Xa(e),Ka(t),this._track.input._disposed)throw new Co;return $a(this._track,this._track._backing.getPacket(e,t),t)})}getNextPacket(e){return d(this,arguments,function*(e,t={}){if(!(e instanceof Ri))throw new TypeError("packet must be an EncodedPacket.");if(Ka(t),this._track.input._disposed)throw new Co;return $a(this._track,this._track._backing.getNextPacket(e,t),t)})}getKeyPacket(e){return d(this,arguments,function*(e,t={}){if(Xa(e),Ka(t),this._track.input._disposed)throw new Co;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const i=yield this._track._backing.getKeyPacket(e,t);if(!i)return i;y("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getKeyPacket(i.timestamp-1/(yield this._track.getTimeResolution()),t):i})}getNextKeyPacket(e){return d(this,arguments,function*(e,t={}){if(!(e instanceof Ri))throw new TypeError("packet must be an EncodedPacket.");if(Ka(t),this._track.input._disposed)throw new Co;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const i=yield this._track._backing.getNextKeyPacket(e,t);if(!i)return i;y("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getNextKeyPacket(i,t):i})}packets(e,t,i={}){if(void 0!==e&&!(e instanceof Ri))throw new TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!(null==i?void 0:i.metadataOnly))throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof Ri))throw new TypeError("endPacket must be an EncodedPacket.");if(Ka(i),this._track.input._disposed)throw new Co;const r=[];let{promise:n,resolve:s}=V(),{promise:a,resolve:o}=V(),l=!1,c=!1,u=null,h=!1;const f=[],m=()=>Math.max(2,f.length);(()=>d(this,null,function*(){let u=null!=e?e:yield this.getFirstPacket(i);for(;u&&!c&&!this._track.input._disposed&&!(t&&u.sequenceNumber>=(null==t?void 0:t.sequenceNumber));)r.length>m()?(({promise:a,resolve:o}=V()),yield a):(r.push(u),s(),({promise:n,resolve:s}=V()),u=yield this.getNextPacket(u,i));l=!0,s()}))().catch(e=>{h||(u=e,h=!0,s())});const p=this._track;return{next(){return d(this,null,function*(){for(;;){if(p.input._disposed)throw new Co;if(c)return{value:void 0,done:!0};if(h)throw u;if(r.length>0){const e=r.shift(),t=performance.now();for(f.push(t);f.length>0&&t-f[0]>=1e3;)f.shift();return o(),{value:e,done:!1}}if(l)return{value:void 0,done:!0};yield n}})},return(){return d(this,null,function*(){return c=!0,o(),s(),{value:void 0,done:!0}})},throw(e){return d(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}class Qa{constructor(e,t){this.onSample=e,this.onError=t}}class Ya{mediaSamplesInRange(e=-1/0,t=1/0,i){Xa(e),Xa(t);const r=[];let n=!1,s=null,{promise:a,resolve:o}=V(),{promise:l,resolve:h}=V(),f=!1,m=!1,p=!1,g=null,k=null,y=!1;const b=u(c({},i),{verifyKeyPackets:!0,metadataOnly:!1});(()=>d(this,null,function*(){var i;g=yield this._createDecoder(i=>{h(),i.timestamp>=t&&(m=!0),m?i.close():(s&&(i.timestamp>e?(r.push(s),n=!0):s.close()),i.timestamp>=e&&(r.push(i),n=!0),s=n?null:i,r.length>0&&(o(),({promise:a,resolve:o}=V())))},e=>{y||(k=e,y=!0,o())});const c=this._createPacketSink(),u=null!=(i=yield c.getKeyPacket(e,b))?i:yield c.getFirstKeyPacket(b);let d=u;const T=c.packets(null!=u?u:void 0,void 0,b);for(yield T.next();d&&!m&&!this._track.input._disposed;){const e=Ja(r.length);if(r.length+g.getDecodeQueueSize()>e){({promise:l,resolve:h}=V()),yield l;continue}g.decode(d);const t=yield T.next();if(t.done)break;d=t.value}yield T.return(),p||this._track.input._disposed||(yield g.flush()),!n&&s&&r.push(s),f=!0,o()}))().catch(e=>{y||(k=e,y=!0,o())}).finally(()=>{null==g||g.close()});const T=this._track,v=()=>{null==s||s.close();for(const e of r)e.close()};return{next(){return d(this,null,function*(){for(;;){if(T.input._disposed)throw p=!0,m=!0,v(),new Co;if(p)return{value:void 0,done:!0};if(y)throw p=!0,m=!0,v(),k;if(r.length>0){const e=r.shift();return h(),{value:e,done:!1}}if(f)return{value:void 0,done:!0};yield a}})},return(){return d(this,null,function*(){return p=!0,m=!0,h(),o(),v(),{value:void 0,done:!0}})},throw(e){return d(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(e,t){(e=>{if(!(Symbol.iterator in e)&&!(Symbol.asyncIterator in e))throw new TypeError("Argument must be an iterable or async iterable.")})(e);const i=function(e){return f(this,null,function*(){Symbol.iterator in e?yield*m(e[Symbol.iterator]()):yield*m(e[Symbol.asyncIterator]())})}(e),r=[],n=[];let{promise:s,resolve:a}=V(),{promise:o,resolve:l}=V(),h=!1,g=!1,k=null,b=null,T=!1;const v=e=>{n.push(e),a(),({promise:s,resolve:a}=V())},S=u(c({},t),{verifyKeyPackets:!0,metadataOnly:!1});(()=>d(this,null,function*(){k=yield this._createDecoder(e=>{if(l(),g)return void e.close();let t=0;for(;r.length>0&&e.timestamp-r[0]>-1e-10;)t++,r.shift();if(t>0)for(let i=0;i{T||(b=e,T=!0,a())});const e=this._createPacketSink();let t=null,s=null,c=-1;const u=()=>d(this,null,function*(){y(s),y(k);let t=s;for(k.decode(t);t.sequenceNumberi&&!g;)({promise:o,resolve:l}=V()),yield o;if(g)break;const r=yield e.getNextPacket(t,S);y(r),k.decode(r),t=r}c=-1}),f=()=>d(this,null,function*(){y(k),yield k.flush();for(let e=0;e{T||(b=e,T=!0,a())}).finally(()=>{null==k||k.close()});const w=this._track,P=()=>{for(const e of n)null==e||e.close()};return{next(){return d(this,null,function*(){for(;;){if(w.input._disposed)throw g=!0,P(),new Co;if(g)return{value:void 0,done:!0};if(T)throw g=!0,P(),b;if(n.length>0){const e=n.shift();return y(void 0!==e),l(),{value:e,done:!1}}if(h)return{value:void 0,done:!0};yield s}})},return(){return d(this,null,function*(){return g=!0,l(),a(),P(),{value:void 0,done:!0}})},throw(e){return d(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}const Ja=e=>0===e?40:8;class Za extends Qa{constructor(e,t,i,r,n,s){var a,o,l,d,h,f,m,p;super(e,t),this.codec=i,this.decoderConfig=r,this.rotation=n,this.timeResolution=s,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new de,this.customDecoderQueueSize=0,this.inputTimestamps=[],this.sampleQueue=[],this.currentPacketIndex=0,this.raslSkipped=!1,this.alphaDecoder=null,this.alphaHadKeyframe=!1,this.colorQueue=[],this.alphaQueue=[],this.merger=null,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue=[],this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,this.finalSamples=[],this.mergeAlphaPromises=[];const g=Va.find(e=>e.supports(i,r));if(g)this.customDecoder=new g,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof ba))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=e=>{if(this.alphaQueue.length>0){const t=this.alphaQueue.shift();y(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(ke()){if("avc"===i&&this.decoderConfig.description){const e=ot(P(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=ct(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig=u(c({},this.decoderConfig),{hardwareAcceleration:"prefer-software"})),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=dt(t),this.decoderConfig=u(c({},this.decoderConfig),{description:at(e)})))}}D(this.decoderConfig.colorSpace)||(this.decoderConfig=u(c({},this.decoderConfig),{colorSpace:{primaries:null!=(o=null==(a=this.decoderConfig.colorSpace)?void 0:a.primaries)?o:"bt709",matrix:null!=(d=null==(l=this.decoderConfig.colorSpace)?void 0:l.matrix)?d:"bt709",transfer:null!=(f=null==(h=this.decoderConfig.colorSpace)?void 0:h.transfer)?f:"bt709",fullRange:null!=(p=null==(m=this.decoderConfig.colorSpace)?void 0:m.fullRange)&&p}}))}const t=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){var e,t;return this.customDecoder?this.customDecoderQueueSize:(y(this.decoder),Math.max(this.decoder.decodeQueueSize,null!=(t=null==(e=this.alphaDecoder)?void 0:e.decodeQueueSize)?t:0))}decode(e){if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--);else{if(y(this.decoder),fe()||H(this.inputTimestamps,e.timestamp,e=>e),ke()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const n of Ze(e.data,this.decoderConfig)){const r=et(e.data[n.offset]);if(i||(i=r>=1&&r<=5),r===Xe.AUD){if(i)break;t.length=0}r>=20&&r<=31||t.push(e.data.subarray(n.offset,n.offset+n.length))}if(!this.decoderConfig.description)for(let e=0;e{if(t.description){const i=3&P(t.description)[4];return nt(e,i+1)}return rt(e)})(t,this.decoderConfig);e=new Ri(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=It(e.data,this.decoderConfig);t&&(e=new Ri(t,e.type,e.timestamp,e.duration))}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}decodeAlphaData(e){if(!e.sideData.alpha)return void this.pushNullAlphaFrame();if(this.merger||(this.merger=new to),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();y(void 0!==t),this.mergeAlpha(t,e)}else this.alphaQueue.push(e);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){const e=this.colorQueue.shift();y(void 0!==e),this.mergeAlpha(e,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},t=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}const t=At(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===t),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(null!=t?t:e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(const t of ht(e,this.decoderConfig)){const i=ft(e[t.offset]);if(i===Ge.RASL_N||i===Ge.RASL_R)return!0}return!1}sampleHandler(e){if(fe()){if(this.sampleQueue.length>0&&e.timestamp>=T(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}H(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();y(void 0!==t),e.setTimestamp(t),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}mergeAlpha(e,t){return d(this,null,function*(){const i=V();this.mergeAlphaPromises.push(i.promise);const r={sample:null};this.finalSamples.push(r);try{if(t){y(this.merger);const i=yield this.merger.merge(e,t);r.sample=new ba(i)}else r.sample=new ba(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(n){j(this.finalSamples,r),this.onError(n)}finally{j(this.mergeAlphaPromises,i.promise),i.resolve()}})}flush(){return d(this,null,function*(){var e;if(this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(y(this.decoder),yield Promise.all([this.decoder.flush(),null==(e=this.alphaDecoder)?void 0:e.flush()]),yield Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,this.alphaHadKeyframe=!1,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue.length=0,this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1),fe()){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1})}close(){var e;this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(y(this.decoder),"closed"!==this.decoder.state&&this.decoder.close(),this.alphaDecoder&&"closed"!==this.alphaDecoder.state&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,null==(e=this.merger)||e.close());for(const t of this.sampleQueue)t.close();this.sampleQueue.length=0}}let eo=null;class to{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!eo){const e=new Blob([`(${io.toString()})()`],{type:"application/javascript"});eo=URL.createObjectURL(e)}const e=J(navigator.hardwareConcurrency,1,4);for(let t=0;t{const t=e.data,i=this.pendingRequests.get(t.id);i&&(this.pendingRequests.delete(t.id),"error"in t?i.reject(new Error(t.error)):i.resolve(t.frame))}),e.addEventListener("error",e=>{const t=new Error(e.message||"Color/alpha merge worker error.");for(const i of this.pendingRequests.values())i.reject(t);this.pendingRequests.clear()}),this.workers.push(e)}}const i=this.nextRequestId++,r=V();this.pendingRequests.set(i,r);const n=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,n.postMessage({id:i,color:e,alpha:t},{transfer:[e,t]}),r.promise}close(){for(const t of this.workers)t.terminate();this.workers.length=0;const e=new Error("Color/alpha merger closed.");for(const t of this.pendingRequests.values())t.reject(e);this.pendingRequests.clear()}}const io=()=>{let e=null,t=null,i=Promise.resolve();self.addEventListener("message",e=>{const{id:t,color:n,alpha:s}=e.data;i=i.then(()=>d(null,null,function*(){try{const e=yield r(n,s);self.postMessage({id:t,frame:e},{transfer:[e]})}catch(e){self.postMessage({id:t,error:e.message})}finally{n.close(),s.close()}}))});const r=(e,t)=>d(null,null,function*(){const i=e.format,r=t.format;if(!i||!r)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");const o=i.includes("P10"),l=i.includes("P12"),c=r.includes("P10"),u=r.includes("P12");if(c!==o||u!==l)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${i}', alpha: '${r}').`);if("RGBX"===i||"RGBA"===i||"BGRX"===i||"BGRA"===i)return yield n(e,t,i);if("I420"===i||"I420P10"===i||"I420P12"===i||"I422"===i||"I422P10"===i||"I422P12"===i||"I444"===i||"I444P10"===i||"I444P12"===i)return yield s(e,t,i);if("NV12"===i)return yield a(e,t);throw new Error(`CPU color/alpha merging does not support format '${i}'.`)}),n=(e,t,i)=>d(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=new Uint8Array(4*d);yield e.copyTo(h);const f=yield o(t,c,u,1);for(let e=0,t=3;ed(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=i.includes("P10"),h=i.includes("P12"),f=d||h?2:1;let m,p;i.startsWith("I420")?(m=Math.ceil(c/2),p=Math.ceil(u/2)):i.startsWith("I422")?(m=Math.ceil(c/2),p=u):(m=c,p=u);const g=c*u,k=g*f,y=m*p*f,b=new Uint8Array(k+2*y+g*f);yield e.copyTo(b);const T=yield o(t,c,u,f),v=k+2*y;b.set(T,v);const S={format:i.slice(0,4)+"A"+i.slice(4),codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[b.buffer]};return new VideoFrame(b,S)}),a=(e,i)=>d(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=Math.ceil(c/2)*Math.ceil(u/2),f=e.allocationSize();t&&t.byteLength===f||(t=new Uint8Array(f)),yield e.copyTo(t);const m=new Uint8Array(d+2*h+d);m.set(t.subarray(0,d),0);const p=d,g=d+h,k=d;for(let e=0;ed(null,null,function*(){const s=t.allocationSize();e&&e.byteLength===s||(e=new Uint8Array(s)),yield t.copyTo(e);const a=t.format;if("RGBA"===a||"BGRA"===a||"RGBX"===a||"BGRX"===a){const t="RGBA"===a||"RGBX"===a?0:2,n=i*r;for(let i=0;i{if(!e||"object"!==typeof e)throw new TypeError("decoderOptions must be an object.");if(void 0!==e.hardwareAcceleration&&!["no-preference","prefer-hardware","prefer-software"].includes(e.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(void 0!==e.optimizeForLatency&&"boolean"!==typeof e.optimizeForLatency)throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")};class no extends Ya{constructor(e,t={}){if(!(e instanceof mo))throw new TypeError("videoTrack must be an InputVideoTrack.");ro(t),super(),this._track=e,this._decoderOptions=t}_createDecoder(e,t){return d(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof VideoDecoder)throw new Error(ye("VideoDecoder"));throw new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getRotation();let n=yield this._track.getDecoderConfig();const s=yield this._track.getTimeResolution();return y(i&&n),n=u(c({},n),{hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency}),new Za(e,t,i,n,r,s)})}_createPacketSink(){return new Ga(this._track)}getSample(e){return d(this,arguments,function*(e,t={}){Xa(e);try{for(var i,r,n,s=p(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class so{constructor(e,t={}){var i,r,n;if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof mo))throw new TypeError("videoTrack must be an InputVideoTrack.");if(t&&"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.alpha&&"boolean"!==typeof t.alpha)throw new TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==t.width&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(void 0!==t.height&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(void 0!==t.fit&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==t.width&&void 0!==t.height&&void 0===t.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==t.crop&&Ca(t.crop,"options."),void 0!==t.poolSize&&("number"!==typeof t.poolSize||!Number.isInteger(t.poolSize)||t.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");void 0!==t.decoderOptions&&ro(t.decoderOptions),this._videoTrack=e,this._alpha=null!=(i=t.alpha)&&i,this._options=t,this._fit=null!=(r=t.fit)?r:"fill",this._videoSampleSink=new no(e,t.decoderOptions),this._canvasPool=Array.from({length:null!=(n=t.poolSize)?n:0},()=>null)}_ensureInit(){var e;return null!=(e=this._initPromise)?e:this._initPromise=(()=>d(this,null,function*(){var e;const t=this._options,i=this._videoTrack,r=null!=(e=t.rotation)?e:yield i.getRotation(),n=yield i.getSquarePixelWidth(),s=yield i.getSquarePixelHeight(),[a,o]=r%180===0?[n,s]:[s,n];let l=t.crop;l&&(l=xa(l,a,o));let[c,u]=l?[l.width,l.height]:[a,o];const d=c/u;void 0!==t.width&&void 0===t.height?(c=t.width,u=Math.round(c/d)):void 0===t.width&&void 0!==t.height?(u=t.height,c=Math.round(u*d)):void 0!==t.width&&void 0!==t.height&&(c=t.width,u=t.height),this._width=c,this._height=u,this._rotation=r,this._crop=l}))()}_videoSampleToWrappedCanvas(e){const t=this._width,i=this._height;let r=this._canvasPool[this._nextCanvasIndex],n=!1;r||("undefined"!==typeof document?(r=document.createElement("canvas"),r.width=t,r.height=i):r=new OffscreenCanvas(t,i),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=r),n=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);const s=r.getContext("2d",{alpha:this._alpha||pe()});y(s),e._drawWithFitAndMipmapping(r,s,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:n,fillBlack:!this._alpha&&pe()});const a={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),a}getCanvas(e,t){return d(this,null,function*(){Xa(e),yield this._ensureInit();const i=yield this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)})}canvases(e,t,i){return f(this,null,function*(){yield new h(this._ensureInit()),yield*m(Y(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e)))})}canvasesAtTimestamps(e,t){return f(this,null,function*(){yield new h(this._ensureInit()),yield*m(Y(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e)))})}}class ao extends Qa{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new de,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const n=t=>{let i=t.timestamp;null!==this.expectedFirstTimestamp&&null===this.currentTimestamp&&(this.timestampOffset=this.expectedFirstTimestamp-i),i+=this.timestampOffset,(null===this.currentTimestamp||Math.abs(i-this.currentTimestamp)>=t.duration)&&(this.currentTimestamp=i);const n=this.currentTimestamp;if(this.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();const s=r.sampleRate;t.setTimestamp(Math.round(n*s)/s),e(t)},s=ja.find(e=>e.supports(i,r));if(s)this.customDecoder=new s,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof Oa))throw new TypeError("The argument passed to onSample must be an AudioSample.");n(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:e=>{try{n(new Oa(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(y(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--)):(y(this.decoder),null!=this.expectedFirstTimestamp||(this.expectedFirstTimestamp=e.timestamp),this.decoder.decode(e.toEncodedAudioChunk()))}flush(){return d(this,null,function*(){this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(y(this.decoder),yield this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0})}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(y(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class oo extends Qa{constructor(e,t,i){super(e,t),this.decoderConfig=i,this.currentTimestamp=null,y(ni.includes(i.codec)),this.codec=i.codec;const{dataType:r,sampleSize:n,littleEndian:s}=ki(this.codec);switch(this.inputSampleSize=n,n){case 1:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint8(t)-o(2,7):"signed"===r?this.readInputValue=(e,t)=>e.getInt8(t):"ulaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=~e;128&r&&(r&=-129,t=-1),i=5+((240&r)>>4);const n=(1<(e=>{let t=0,i=0,r=85^e;128&r&&(r&=-129,t=-1),i=4+((240&r)>>4);let n=0;return n=4!==i?1<e.getUint16(t,s)-o(2,15):"signed"===r?this.readInputValue=(e,t)=>e.getInt16(t,s):y(!1);break;case 3:"unsigned"===r?this.readInputValue=(e,t)=>G(e,t,s)-o(2,23):"signed"===r?this.readInputValue=(e,t)=>((e,t,i)=>G(e,t,i)<<8>>8)(e,t,s):y(!1);break;case 4:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint32(t,s)-o(2,31):"signed"===r?this.readInputValue=(e,t)=>e.getInt32(t,s):"float"===r?this.readInputValue=(e,t)=>e.getFloat32(t,s):y(!1);break;case 8:"float"===r?this.readInputValue=(e,t)=>e.getFloat64(t,s):y(!1);break;default:$(n),y(!1)}switch(n){case 1:"ulaw"===r||"alaw"===r?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(e,t,i)=>e.setUint8(t,i+o(2,7)));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i<<8,!0);break;case 4:this.outputSampleSize=4,"float"===r?(this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0)):(this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0);break;default:$(n),y(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=I(e.data),i=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,r=i*this.decoderConfig.numberOfChannels*this.outputSampleSize,n=new ArrayBuffer(r),s=new DataView(n);for(let c=0;c=a)&&(this.currentTimestamp=e.timestamp);const o=this.currentTimestamp;this.currentTimestamp+=a;const l=new Oa({format:this.outputFormat,data:n,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:i,timestamp:o});this.onSample(l)}flush(){return d(this,null,function*(){})}close(){}}class lo extends Ya{constructor(e){if(!(e instanceof po))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=e}_createDecoder(e,t){return d(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof AudioDecoder)throw new Error(ye("AudioDecoder"));throw new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getDecoderConfig();return y(i&&r),ni.includes(r.codec)?new oo(e,t,r):new ao(e,t,i,r)})}_createPacketSink(){return new Ga(this._track)}getSample(e){return d(this,arguments,function*(e,t={}){Xa(e);try{for(var i,r,n,s=p(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class co{constructor(e){if(!(e instanceof po))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new lo(e)}_audioSampleToWrappedArrayBuffer(e){const t={buffer:e.toAudioBuffer(),timestamp:e.timestamp,duration:e.duration};return e.close(),t}getBuffer(e,t){return d(this,null,function*(){Xa(e);const i=yield this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)})}buffers(e,t,i){return Y(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return Y(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class uo{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof mo}isAudioTrack(){return this instanceof po}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}getInternalCodecId(){return d(this,null,function*(){return this._backing.getInternalCodecId()})}get internalCodecId(){return ho(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}getLanguageCode(){return d(this,null,function*(){return this._backing.getLanguageCode()})}get languageCode(){return ho(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}getName(){return d(this,null,function*(){return this._backing.getName()})}get name(){return ho(this._backing.getName(),"name","getName")}getTimeResolution(){return d(this,null,function*(){return this._backing.getTimeResolution()})}get timeResolution(){return ho(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}isRelativeToUnixEpoch(){return d(this,null,function*(){return this._backing.isRelativeToUnixEpoch()})}getUnixTimeForTimestamp(e){return d(this,null,function*(){return this._backing.getUnixTimeForTimestamp(e)})}hasUnixTimeMapping(){return d(this,null,function*(){return null!==(yield this._backing.getUnixTimeForTimestamp(yield this.getFirstTimestamp()))})}getDisposition(){return d(this,null,function*(){return this._backing.getDisposition()})}get disposition(){return ho(this._backing.getDisposition(),"disposition","getDisposition")}getBitrate(){return d(this,null,function*(){return this._backing.getBitrate()})}getAverageBitrate(){return d(this,null,function*(){return this._backing.getAverageBitrate()})}getFirstTimestamp(){return d(this,null,function*(){var e;const t=yield this._backing.getFirstPacket({metadataOnly:!0});return null!=(e=null==t?void 0:t.timestamp)?e:0})}computeDuration(e){return d(this,null,function*(){var t,i;const r=yield this._backing.getPacket(1/0,c({metadataOnly:!0},e)),n=(null!=(t=null==r?void 0:r.timestamp)?t:0)+(null!=(i=null==r?void 0:r.duration)?i:0);return ie(n,yield this.getTimeResolution())})}getDurationFromMetadata(){return d(this,arguments,function*(e={}){return this._backing.getDurationFromMetadata(e)})}computePacketStats(e=1/0,t){return d(this,null,function*(){const i=new Ga(this);let r=1/0,n=-1/0,s=0,a=0;try{for(var o,l,u,d=p(i.packets(void 0,void 0,c({metadataOnly:!0},t)));o=!(l=yield d.next()).done;o=!1){const t=l.value;if(s>=e&&t.timestamp>=n)break;r=Math.min(r,t.timestamp),n=Math.max(n,t.timestamp+t.duration),s++,a+=t.byteLength}}catch(l){u=[l]}finally{try{o&&(l=d.return)&&(yield l.call(d))}finally{if(u)throw u[0]}}return{packetCount:s,averagePacketRate:s?Number((s/(n-r)).toPrecision(16)):0,averageBitrate:s?Number((8*a/(n-r)).toPrecision(16)):0}})}isLive(){return d(this,null,function*(){return null!==(yield this._backing.getLiveRefreshInterval())})}getLiveRefreshInterval(){return d(this,null,function*(){return this._backing.getLiveRefreshInterval()})}canBePairedWith(e){if(!(e instanceof uo))throw new TypeError("other must be an InputTrack.");return this.input===e.input&&this!==e&&(this._backing.getPairingMask()&e._backing.getPairingMask())!==BigInt("0")}getPairableTracks(e){return d(this,null,function*(){return this.input.getTracks(bo({filter:e=>e.canBePairedWith(this)},e))})}getPairableVideoTracks(e){return d(this,null,function*(){return this.input.getVideoTracks(bo({filter:e=>e.canBePairedWith(this)},e))})}getPairableAudioTracks(e){return d(this,null,function*(){return this.input.getAudioTracks(bo({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableVideoTrack(e){return d(this,null,function*(){return this.input.getPrimaryVideoTrack(bo({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableAudioTrack(e){return d(this,null,function*(){return this.input.getPrimaryAudioTrack(bo({filter:e=>e.canBePairedWith(this)},e))})}hasPairableTrack(e){return d(this,null,function*(){e&&(e=fo(e));const t=yield this.input.getTracks();for(const i of t)if(this.canBePairedWith(i)&&(!e||(yield e(i))))return!0;return!1})}hasPairableVideoTrack(e){return e&&(e=fo(e)),this.hasPairableTrack(t=>d(this,null,function*(){return t.isVideoTrack()&&(!e||(yield e(t)))}))}hasPairableAudioTrack(e){return e&&(e=fo(e)),this.hasPairableTrack(t=>d(this,null,function*(){return t.isAudioTrack()&&(!e||(yield e(t)))}))}}const ho=(e,t,i)=>{if(Te(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},fo=e=>{if(void 0!==e&&"function"!==typeof e)throw new TypeError("predicate, when provided, must be a function.");return e?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("predicate must return or resolve to a boolean value.");return e},r=e(t);return Te(r)?r.then(i):i(r)}:void 0};class mo extends uo{constructor(e,t){super(e,t),this._pixelAspectRatioCache=null,this._backing=t}get type(){return"video"}getCodec(){return d(this,null,function*(){return this._backing.getCodec()})}get codec(){return ho(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return d(this,null,function*(){var e,t,i;return null!=(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:"prores"===(yield this._backing.getCodec())})}getCodedWidth(){return d(this,null,function*(){return this._backing.getCodedWidth()})}get codedWidth(){return ho(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}getCodedHeight(){return d(this,null,function*(){return this._backing.getCodedHeight()})}get codedHeight(){return ho(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}getRotation(){return d(this,null,function*(){return this._backing.getRotation()})}get rotation(){return ho(this._backing.getRotation(),"rotation","getRotation")}getSquarePixelWidth(){return d(this,null,function*(){return this._backing.getSquarePixelWidth()})}get squarePixelWidth(){return ho(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}getSquarePixelHeight(){return d(this,null,function*(){return this._backing.getSquarePixelHeight()})}get squarePixelHeight(){return ho(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}getPixelAspectRatio(){return d(this,null,function*(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=Ee({num:(yield this.getSquarePixelWidth())*(yield this.getCodedHeight()),den:(yield this.getSquarePixelHeight())*(yield this.getCodedWidth())})})}get pixelAspectRatio(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=Ee({num:ho(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*ho(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:ho(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*ho(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")})}getDisplayWidth(){return d(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight()})}get displayWidth(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(void 0!==i){const e=ho(i,"displayWidth","getDisplayWidth");if(null!==e)return e}const r=ho(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return ho(r,"displayWidth","getDisplayWidth")}getDisplayHeight(){return d(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth()})}get displayHeight(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(void 0!==i){const e=ho(i,"displayHeight","getDisplayHeight");if(null!==e)return e}const r=ho(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return ho(r,"displayHeight","getDisplayHeight")}getColorSpace(){return d(this,null,function*(){return this._backing.getColorSpace()})}hasHighDynamicRange(){return d(this,null,function*(){const e=yield this._backing.getColorSpace();return"bt2020"===e.primaries||"smpte432"===e.primaries||"pq"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix})}canBeTransparent(){return d(this,null,function*(){return this._backing.canBeTransparent()})}getDecoderConfig(){return d(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return d(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return d(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(y(null!==t),Va.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(yield VideoDecoder.isConfigSupported(e)).supported}catch(e){return Me._error("Error during decodability check:",e),!1}})}determinePacketType(e){return d(this,null,function*(){if(!(e instanceof Ri))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const t=yield this.getCodec();if(null===t)return null;const i=yield this.getDecoderConfig();return y(i),At(t,i,e.data)})}computeFrameRateMetrics(){return d(this,arguments,function*(e={}){var t,i;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.targetPacketCount&&(!Ie(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");const r=yield this.getTimeResolution(),n=null!=(t=e.targetPacketCount)?t:256,s=new Ga(this),a=[];let o=-1/0,l=0;try{for(var c,u,d,h=p(s.packets(void 0,void 0,{metadataOnly:!0}));c=!(u=yield h.next()).done;c=!1){const e=u.value;if(a.length>=n&&e.timestamp>=o)break;a.push(e.timestamp),o=Math.max(o,e.timestamp),l++}}catch(u){d=[u]}finally{try{c&&(u=h.return)&&(yield u.call(h))}finally{if(d)throw d[0]}}const f=new Float64Array(a.length);for(let p=0;pe-t),x=P-1>>1,C=P>>1;let B=0,E=0,_=0;for(const p of I)if(_+=T.get(p),0===B&&_>x&&(B=p),_>C){E=p;break}const R=(y/B+y/E)/2;return{underlyingFrameRate:k,bestGuessFrameRate:null!==k?k:wo(R),minFrameRate:y/S,maxFrameRate:y/v,averageFrameRate:y*P/w,medianFrameRate:R,frameRateIsConstant:null!==k&&1===v&&1===S,probedPacketCount:l}})}}class po extends uo{constructor(e,t){super(e,t),this._backing=t}get type(){return"audio"}getCodec(){return d(this,null,function*(){return this._backing.getCodec()})}get codec(){return ho(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return d(this,null,function*(){var e,t,i;return null==(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))||i})}getNumberOfChannels(){return d(this,null,function*(){return this._backing.getNumberOfChannels()})}get numberOfChannels(){return ho(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}getSampleRate(){return d(this,null,function*(){return this._backing.getSampleRate()})}get sampleRate(){return ho(this._backing.getSampleRate(),"sampleRate","getSampleRate")}getDecoderConfig(){return d(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return d(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return d(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(y(null!==t),ja.some(i=>i.supports(t,e)))return!0;if(e.codec.startsWith("pcm-"))return!0;if("undefined"===typeof AudioDecoder)return!1;return!0===(yield AudioDecoder.isConfigSupported(e)).supported}catch(e){return Me._error("Error during decodability check:",e),!1}})}determinePacketType(e){return d(this,null,function*(){if(!(e instanceof Ri))throw new TypeError("packet must be an EncodedPacket.");return null===(yield this.getCodec())?null:"key"})}}const go=e=>-(null!=e?e:-1/0),ko=e=>-e,yo=e=>{if("object"!==typeof e||!e)throw new TypeError("query must be an object.");if(void 0!==e.filter&&"function"!==typeof e.filter)throw new TypeError("query.filter, when provided, must be a function.");if(void 0!==e.sortBy&&"function"!==typeof e.sortBy)throw new TypeError("query.sortBy, when provided, must be a function.");return{filter:e.filter?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("query.filter must return or resolve to a boolean.");return e},r=e.filter(t);return Te(r)?r.then(i):i(r)}:void 0,sortBy:e.sortBy?t=>{const i=e=>{if("number"!==typeof e&&(!Array.isArray(e)||!e.every(e=>"number"===typeof e)))throw new TypeError("query.sortBy must return or resolve to a number or an array of numbers.");return e},r=e.sortBy(t);return Te(r)?r.then(i):i(r)}:void 0}},bo=(e,t)=>({filter:(null==e?void 0:e.filter)||(null==t?void 0:t.filter)?i=>{var r,n;const s=null==(n=null==(r=null==e?void 0:e.filter)?void 0:r.call(e,i))||n,a=e=>{var r,n;return!1!==e&&(null==(n=null==(r=null==t?void 0:t.filter)?void 0:r.call(t,i))||n)};return Te(s)?s.then(a):a(s)}:void 0,sortBy:(null==e?void 0:e.sortBy)||(null==t?void 0:t.sortBy)?i=>{var r,n,s,a;const o=null!=(n=null==(r=null==e?void 0:e.sortBy)?void 0:r.call(e,i))?n:[],l=null!=(a=null==(s=null==t?void 0:t.sortBy)?void 0:s.call(t,i))?a:[],c=(e,t)=>[...Array.isArray(e)?e:[e],...Array.isArray(t)?t:[t]];return Te(o)||Te(l)?Promise.all([o,l]).then(([e,t])=>c(e,t)):c(o,l)}:void 0}),To=(e,t)=>d(null,null,function*(){let i=e;if(null==t?void 0:t.filter){const r=e.map(e=>t.filter(e));if(r.some(e=>Te(e))){const t=yield Promise.all(r);i=e.filter((e,i)=>t[i])}else i=e.filter((e,t)=>r[t])}if(!(null==t?void 0:t.sortBy))return i;const r=i.map(e=>t.sortBy(e)),n=r.some(e=>Te(e))?yield Promise.all(r):r;return i.map((e,t)=>({track:e,sortValue:n[t]})).sort((e,t)=>{var i,r;const n=Array.isArray(e.sortValue)?e.sortValue:[e.sortValue],s=Array.isArray(t.sortValue)?t.sortValue:[t.sortValue],a=Math.max(n.length,s.length);for(let o=0;oe.track)}),vo=(e,t)=>{const i=1e6,r=1+1e-9,n=[12,15,20,24e3/1001,24,25,3e4/1001,30,48,50,6e4/1001,60,100,12e4/1001,120,144,240];if(e.length<2)return null;const s=new Float64Array(e.length-1);for(let v=1;v0))return null;s[v-1]=t}const a=s.slice();a.sort();let o=a[Math.floor(.05*a.length)];for(let v=0;v<6;v++){let e=0,t=0;for(const n of s){const i=Math.max(1,Math.round(n/o));Math.abs(n-i*o)>=r||(e+=n,t+=i)}if(0===t)return null;const i=e/t;if(Math.abs(i-o)<=1e-12*Math.max(1,o)){o=i;break}o=i}let l=0,c=0,u=0;for(const v of s){const e=Math.max(1,Math.round(v/o));Math.abs(v-e*o)>=r||(l++,c+=v,u+=e)}if(l/s.length<.98)return null;o=c/u;const d=1/Math.min(u,1e3),h=Math.max(Number.EPSILON,o-d),f=o+d,m=t/f,p=t/h,g=t/o;let k=null,y=1/0;for(const v of n){if(vp)continue;const e=Math.abs(v/g-1);e{for(let r=1;r<=i;r++){const i=Math.floor(e*r)+1;if(i/r{const t=[24/1.001,30/1.001,60/1.001,120/1.001],i=[12,15,20,24,25,30,48,50,60,100,120,144,240];for(const s of t)if(Math.abs(s/e-1)<=5e-4)return s;let r=e,n=1/0;for(const s of i){const t=Math.abs(s/e-1);t<=.025&&t!(e instanceof Us)))throw new TypeError("options.formats must be an array of InputFormat.");if(!(e.source instanceof ds||e.source instanceof hs))throw new TypeError("options.source must be a Source or SourceRef.");if(e.source instanceof ds&&e.source._disposed)throw new TypeError("options.source must not be a disposed Source.");if(void 0!==e.initInput&&!(e.initInput instanceof Io))throw new TypeError("options.initInput, when provided, must be an Input.");void 0!==e.formatOptions&&((e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(`${t}, when provided, must be an object.`);if(void 0!==e.isobmff){if(!e.isobmff||"object"!==typeof e.isobmff)throw new TypeError(`${t}.isobmff, when provided, must be an object.`);if(void 0!==e.isobmff.resolveKeyId&&"function"!==typeof e.isobmff.resolveKeyId)throw new TypeError(`${t}.isobmff.resolveKeyId, when provided, must be a function.`)}if(void 0!==e.hls){if(!e.hls||"object"!==typeof e.hls)throw new TypeError(`${t}.hls, when provided, must be an object.`);if(void 0!==e.hls.offsetTimestampsByDateTime&&"boolean"!==typeof e.hls.offsetTimestampsByDateTime)throw new TypeError(`${t}.hls.offsetTimestampsByDateTime, when provided, must be a boolean.`)}})(e.formatOptions,"formatOptions"),this._formats=e.formats,this._initInput=null!=(t=e.initInput)?t:null,this._formatOptions=null!=(i=e.formatOptions)?i:{},e.source instanceof ds?this._rootRef=e.source.ref():this._rootRef=e.source,this._sourceRefs.push(this._rootRef)}get _rootSource(){return this._rootRef.source}_getSourceUncached(e){return d(this,null,function*(){y(this._rootSource instanceof fs);const t=yield this._rootSource._resolveRequest(e);return this._emit("source",{source:t.source,request:e,isRoot:e.isRoot}),t})}_getSourceCached(e,t=1){const i=this._sourceCache.find(i=>i.cacheGroup===t&&ms(i.request,e));if(i)return i.age++,Promise.resolve(i.sourceRef.source.ref());const r=this._sourceCachePromises.find(i=>i.cacheGroup===t&&ms(i.request,e));if(r)return r.promise.then(e=>e.sourceRef.source.ref());const n=(()=>d(this,null,function*(){const i=yield this._getSourceUncached(e);if(Ce(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount)>=4){const e=Be(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount?e.age:1/0);y(-1!==e);const i=this._sourceCache[e];this._sourceCache.splice(e,1),i.sourceRef.free(),j(this._sourceRefs,i.sourceRef)}this._sourceRefs.push(i);const r=this._sourceCachePromises.findIndex(t=>t.request===e);y(-1!==r),this._sourceCachePromises.splice(r,1);return{request:e,sourceRef:i,age:this._nextSourceCacheAge++,cacheGroup:t}}))();return this._sourceCachePromises.push({request:e,cacheGroup:t,promise:n}),n.then(e=>{const t=e.sourceRef.source.ref();return this._sourceCache.push(e),t})}_getDemuxer(){var e;return null!=(e=this._demuxerPromise)?e:this._demuxerPromise=(()=>d(this,null,function*(){var e;this._reader=new Bo(this._rootSource),this._emit("source",{source:this._rootSource,request:null,isRoot:!0});for(const t of this._formats){if(yield t._canReadInput(this))return this._format=t,null==(e=this._onFormatDetermined)||e.call(this,t),t._createDemuxer(this)}throw new xo}))()}get source(){return this._rootSource}getFormat(){return d(this,null,function*(){return yield this._getDemuxer(),y(this._format),this._format})}canRead(){return d(this,null,function*(){try{return yield this._getDemuxer(),!0}catch(e){if(e instanceof xo)return!1;throw e}})}getFirstTimestamp(e){return d(this,null,function*(){null!=e||(e=yield this.getTracks());const t=e.filter(e=>null!==e);if(0===t.length)return 0;const i=yield Promise.all(t.map(e=>e._backing.getFirstPacket({metadataOnly:!0}))),r=Math.min(...i.map(e=>{var t;return null!=(t=null==e?void 0:e.timestamp)?t:1/0}));return r===1/0?0:r})}computeDuration(e,t){return d(this,null,function*(){null!=e||(e=yield this.getTracks());const i=e.filter(e=>null!==e);if(0===i.length)return 0;const r=yield Promise.all(i.map(e=>e.computeDuration(t)));return Math.max(...r)})}getDurationFromMetadata(e,t){return d(this,null,function*(){null!=e||(e=yield this.getTracks());const i=e.filter(e=>null!==e),r=(yield Promise.all(i.map(e=>e.getDurationFromMetadata(t)))).filter(e=>null!==e);return 0===r.length?null:Math.max(...r)})}getTracks(e){return d(this,null,function*(){e&&(e=yo(e));const t=(yield this._getTrackBackings()).map(e=>this._wrapBackingAsTrack(e));return To(t,e)})}getVideoTracks(e){return d(this,null,function*(){e&&(e=yo(e));const t=(yield this.getTracks()).filter(e=>e.isVideoTrack());return To(t,e)})}getAudioTracks(e){return d(this,null,function*(){e&&(e=yo(e));const t=(yield this.getTracks()).filter(e=>e.isAudioTrack());return To(t,e)})}getPrimaryVideoTrack(e){return d(this,null,function*(){var t;e&&(e=yo(e));const i=bo(e,{sortBy:e=>d(null,null,function*(){return[ko((yield e.getDisposition()).default),ko(yield e.hasPairableAudioTrack()),ko(!(yield e.hasOnlyKeyPackets())),go(yield e.getBitrate())]})});return null!=(t=(yield this.getVideoTracks(i))[0])?t:null})}getPrimaryAudioTrack(e){return d(this,null,function*(){var t;e&&(e=yo(e));const i=yield this.getPrimaryVideoTrack(),r=bo(e,{sortBy:e=>d(this,null,function*(){return[ko(!i||e.canBePairedWith(i)),ko((yield e.getDisposition()).default),go(yield e.getBitrate())]})});return null!=(t=(yield this.getAudioTracks(r))[0])?t:null})}_getTrackBackings(){return d(this,null,function*(){var e;const t=yield this._getDemuxer();return null!=(e=this._trackBackingsCache)?e:this._trackBackingsCache=yield t.getTrackBackings()})}_wrapBackingAsTrack(e){const t=this._backingToTrack.get(e);if(t)return t;const i="video"===e.getType()?new mo(this,e):new po(this,e);return this._backingToTrack.set(e,i),i}getMimeType(){return d(this,null,function*(){return(yield this._getDemuxer()).getMimeType()})}getMetadataTags(){return d(this,null,function*(){return(yield this._getDemuxer()).getMetadataTags()})}dispose(){if(!this._disposed){this._disposed=!0;for(const e of this._sourceRefs)e.free();this._sourceRefs.length=0,this._demuxerPromise&&this._demuxerPromise.then(e=>e.dispose()).catch(()=>{})}}[Symbol.dispose](){this.dispose()}}class xo extends Error{constructor(e="Input has an unsupported or unrecognizable format."){super(e),this.name="UnsupportedInputFormatError"}}class Co extends Error{constructor(e="Input has been disposed."){super(e),this.name="InputDisposedError"}}class Bo{constructor(e){this.source=e}get fileSize(){const e=this.source._getFileSize();if(void 0===e)throw new Error("Reading file size too early; read required first.");return e}get fileSizeNonStrict(){var e;return null!=(e=this.source._getFileSize())?e:null}requestSlice(e,t){if(this.source._disposed)throw new Co;if(e<0)return null;if(null!==this.fileSizeNonStrict&&e+t>this.fileSizeNonStrict)return null;if(0===t){const t=new Uint8Array(0);return new Eo(t,I(t),0,e,e)}const i=e+t,r=this.source._read(e,i,0,us);return Te(r)?r.then(t=>t?new Eo(t.bytes,t.view,t.offset,e,i):null):r?new Eo(r.bytes,r.view,r.offset,e,i):null}requestSliceRange(e,t,i){if(this.source._disposed)throw new Co;if(e<0)return null;if(null!==this.fileSizeNonStrict)return this.requestSlice(e,J(this.fileSizeNonStrict-e,t,i));{const r=this.requestSlice(e,i),n=r=>r||(y(null!==this.fileSizeNonStrict),this.requestSlice(e,J(this.fileSizeNonStrict-e,t,i)));return Te(r)?r.then(n):n(r)}}requestEntireFile(){if(null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);return(()=>d(this,null,function*(){const e=[];let t=0;for(;;){if(1===e.length&&null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);let i=this.requestSliceRange(t,0,1024);if(Te(i)&&(i=yield i),!i||0===i.length)break;const r=Ro(i,i.length);e.push(r),t+=i.length}const i=new Uint8Array(t);let r=0;for(const n of e)i.set(n,r),r+=n.length;return new Eo(i,I(i),0,0,t)}))()}}class Eo{constructor(e,t,i,r,n){this.bytes=e,this.view=t,this.offset=i,this.start=r,this.end=n,this.bufferPos=r-i}static tempFromBytes(e){return new Eo(e,I(e),0,0,e.length)}get length(){return this.end-this.start}get filePos(){return this.offset+this.bufferPos}set filePos(e){this.bufferPos=e-this.offset}get remainingLength(){return Math.max(this.end-this.filePos,0)}skip(e){this.bufferPos+=e}slice(e,t=this.end-e){if(ethis.end)throw new RangeError("Slicing outside of original slice.");return new Eo(this.bytes,this.view,this.offset,e,e+t)}}const _o=(e,t)=>{if(e.filePose.end)throw new RangeError(`Tried reading [${e.filePos}, ${e.filePos+t}), but slice is [${e.start}, ${e.end}). This is likely an internal error, please report it alongside the file that caused it.`)},Ro=(e,t)=>{_o(e,t);const i=e.bytes.subarray(e.bufferPos,e.bufferPos+t);return e.bufferPos+=t,i},Fo=e=>(_o(e,1),e.view.getUint8(e.bufferPos++)),Ao=(e,t)=>{_o(e,2);const i=e.view.getUint16(e.bufferPos,t);return e.bufferPos+=2,i},Do=e=>{_o(e,2);const t=e.view.getUint16(e.bufferPos,!1);return e.bufferPos+=2,t},Mo=e=>{_o(e,3);const t=G(e.view,e.bufferPos,!1);return e.bufferPos+=3,t},No=e=>{_o(e,2);const t=e.view.getInt16(e.bufferPos,!1);return e.bufferPos+=2,t},Oo=(e,t)=>{_o(e,4);const i=e.view.getUint32(e.bufferPos,t);return e.bufferPos+=4,i},Lo=e=>{_o(e,4);const t=e.view.getUint32(e.bufferPos,!1);return e.bufferPos+=4,t},zo=e=>{_o(e,4);const t=e.view.getUint32(e.bufferPos,!0);return e.bufferPos+=4,t},Uo=e=>{_o(e,4);const t=e.view.getInt32(e.bufferPos,!1);return e.bufferPos+=4,t},qo=(e,t)=>{let i,r;return t?(i=Oo(e,!0),r=Oo(e,!0)):(r=Oo(e,!1),i=Oo(e,!1)),4294967296*r+i},Wo=e=>4294967296*Lo(e)+Lo(e),Ho=e=>4294967296*Uo(e)+Lo(e),Vo=e=>{const t=zo(e),i=(e=>{_o(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},jo=e=>{_o(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},Ko=e=>{_o(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},Xo=(e,t)=>{_o(e,t);let i="";for(let r=0;rx.decode(Ro(e,t)).split("\n").map(e=>e.trim()).filter(e=>{var t;return e.length>0&&!(null==(t=null==i?void 0:i.ignore)?void 0:t.call(i,e))});var Go,Qo,Yo,Jo;(Qo=Go||(Go={}))[Qo.Unsynchronisation=128]="Unsynchronisation",Qo[Qo.ExtendedHeader=64]="ExtendedHeader",Qo[Qo.ExperimentalIndicator=32]="ExperimentalIndicator",Qo[Qo.Footer=16]="Footer",(Jo=Yo||(Yo={}))[Jo.ISO_8859_1=0]="ISO_8859_1",Jo[Jo.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",Jo[Jo.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",Jo[Jo.UTF_8=3]="UTF_8";const Zo=128,el=10,tl=["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"],il=(e,t)=>{var i;const r=e.filePos;null!=t.raw||(t.raw={}),null!=(i=t.raw).TAG||(i.TAG=Ro(e,Zo-3)),e.filePos=r;const n=rl(e,30);n&&(null!=t.title||(t.title=n));const s=rl(e,30);s&&(null!=t.artist||(t.artist=s));const a=rl(e,30);a&&(null!=t.album||(t.album=a));const o=rl(e,4),l=Number.parseInt(o,10);Number.isInteger(l)&&l>0&&(null!=t.date||(t.date=new Date(String(l))));const c=Ro(e,30);let u;if(0===c[28]&&0!==c[29]){const i=c[29];i>0&&(null!=t.trackNumber||(t.trackNumber=i)),e.skip(-30),u=rl(e,28),e.skip(2)}else e.skip(-30),u=rl(e,30);u&&(null!=t.comment||(t.comment=u));const d=Fo(e);d{const i=Ro(e,t),r=ve(i.indexOf(0),i.length),n=i.subarray(0,r);let s="";for(let a=0;a{const t=e.filePos,i=Xo(e,3),r=Fo(e),n=Fo(e),s=Fo(e),a=Lo(e);if("ID3"!==i||255===r||255===n||0!==(2155905152&a))return e.filePos=t,null;let o=Ii(a);return s&Go.Footer&&(o+=el),{majorVersion:r,revision:n,flags:s,size:o}},sl=(e,t,i)=>{var r,n,s,a,o,l;if(![2,3,4].includes(t.majorVersion))return void Me._warn(`Unsupported ID3v2 major version: ${t.majorVersion}`);const c=t.flags&Go.Footer?t.size-el:t.size,u=Ro(e,c),d=new al(t,u);if(t.flags&Go.Unsynchronisation&&3===t.majorVersion&&d.ununsynchronizeAll(),t.flags&Go.ExtendedHeader){const e=d.readU32();3===t.majorVersion?d.pos+=e:d.pos+=e-4}for(;d.pos<=d.bytes.length-d.frameHeaderSize();){const e=d.readId3V2Frame();if(!e)break;const c=d.pos,u=d.pos+e.size;let h=!1,f=!1,m=!1;if(3===t.majorVersion?(h=!!(64&e.flags),f=!!(128&e.flags)):4===t.majorVersion&&(h=!!(4&e.flags),f=!!(8&e.flags),m=!!(2&e.flags)||!!(t.flags&Go.Unsynchronisation)),h)Me._warn(`Skipping encrypted ID3v2 frame ${e.id}`),d.pos=u;else if(f)Me._warn(`Skipping compressed ID3v2 frame ${e.id}`),d.pos=u;else{if(m&&d.ununsynchronizeRegion(d.pos,u),null!=i.raw||(i.raw={}),"TXXX"===e.id){const e=null!=(n=(r=i.raw).TXXX)?n:r.TXXX={},t=d.readId3V2TextEncoding(),s=d.readId3V2Text(t,u),a=d.readId3V2Text(t,u);null!=e[s]||(e[s]=a)}else"T"===e.id[0]?null!=(s=i.raw)[a=e.id]||(s[a]=d.readId3V2EncodingAndText(u)):null!=(o=i.raw)[l=e.id]||(o[l]=d.readBytes(e.size));switch(d.pos=c,e.id){case"TIT2":case"TT2":null!=i.title||(i.title=d.readId3V2EncodingAndText(u));break;case"TIT3":case"TT3":null!=i.description||(i.description=d.readId3V2EncodingAndText(u));break;case"TPE1":case"TP1":null!=i.artist||(i.artist=d.readId3V2EncodingAndText(u));break;case"TALB":case"TAL":null!=i.album||(i.album=d.readId3V2EncodingAndText(u));break;case"TPE2":case"TP2":null!=i.albumArtist||(i.albumArtist=d.readId3V2EncodingAndText(u));break;case"TRCK":case"TRK":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.trackNumber||(i.trackNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.tracksTotal||(i.tracksTotal=r))}break;case"TPOS":case"TPA":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.discNumber||(i.discNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.discsTotal||(i.discsTotal=r))}break;case"TCON":case"TCO":{const e=d.readId3V2EncodingAndText(u);let t=/^\((\d+)\)/.exec(e);if(t){const e=Number.parseInt(t[1]);if(void 0!==tl[e]){null!=i.genre||(i.genre=tl[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==tl[e]){null!=i.genre||(i.genre=tl[e]);break}}null!=i.genre||(i.genre=e)}break;case"TDRC":case"TDAT":{const e=d.readId3V2EncodingAndText(u),t=new Date(e);Number.isNaN(t.getTime())||null!=i.date||(i.date=t)}break;case"TYER":case"TYE":{const e=d.readId3V2EncodingAndText(u),t=Number.parseInt(e,10);Number.isInteger(t)&&(null!=i.date||(i.date=new Date(String(t))))}break;case"USLT":case"ULT":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.lyrics||(i.lyrics=d.readId3V2Text(e,u))}break;case"COMM":case"COM":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.comment||(i.comment=d.readId3V2Text(e,u))}break;case"APIC":case"PIC":{const e=d.readId3V2TextEncoding();let r;if(2===t.majorVersion){const e=d.readAscii(3);r="PNG"===e?"image/png":"JPG"===e?"image/jpeg":"image/*"}else r=d.readId3V2Text(e,u);const n=d.readU8(),s=d.readId3V2Text(e,u).trimEnd(),a=u-d.pos;if(a>=0){const e=d.readBytes(a);i.images||(i.images=[]),i.images.push({data:e,mimeType:r,kind:3===n?"coverFront":4===n?"coverBack":"unknown",description:s})}}break;default:d.pos+=e.size}d.pos=u}}};class al{constructor(e,t){this.header=e,this.bytes=t,this.pos=0,this.view=new DataView(t.buffer,t.byteOffset,t.byteLength)}frameHeaderSize(){return 2===this.header.majorVersion?6:10}ununsynchronizeAll(){const e=[];for(let t=0;t{const t=this.pos+e;if(t>this.bytes.length)return!1;if(t<=this.bytes.length-this.frameHeaderSize()){this.pos+=e;const t=this.readAscii(4);if("\0\0\0\0"!==t&&!/[0-9A-Z]{4}/.test(t))return!1}return!0};if(!s(i)){const e=4===this.header.majorVersion?t:Ii(t);s(e)&&(i=e)}return this.pos=n,{id:e,size:i,flags:r}}}readId3V2TextEncoding(){const e=this.readU8();if(e>3)throw new Error(`Unsupported text encoding: ${e}`);return e}readId3V2Text(e,t){const i=this.pos,r=this.readBytes(t-this.pos);switch(e){case Yo.ISO_8859_1:{let e="";for(let t=0;t0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}if(254===r[0]&&255===r[1]){const e=new TextDecoder("utf-16be"),t=ve(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}{const e=ve(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),x.decode(r.subarray(0,e))}case Yo.UTF_16_BE_NO_BOM:{const e=new TextDecoder("utf-16be"),t=ve(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(0,t))}case Yo.UTF_8:{const e=ve(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),x.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class ol{constructor(e){this.events=e,this.input=null,this.audioSink=null,this.audioIterator=null,this.audioContext=null,this.gainNode=null,this.audioContextStartTime=0,this.playbackTimeAtStart=0,this.latestScheduledEndTime=0,this.duration=Number.NaN,this.paused=!0,this.volume=.7,this.muted=!1,this.playbackRate=1,this.asyncId=0,this.queuedNodes=new Set}get currentTime(){return this.paused?this.playbackTimeAtStart:(this.audioContext.currentTime-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart}ensureAudioContext(e){if(this.audioContext)return;const t=window.AudioContext||window.webkitAudioContext;try{this.audioContext=new t({sampleRate:e})}catch(i){this.audioContext=new t}this.gainNode=this.audioContext.createGain(),this.gainNode.connect(this.audioContext.destination),this.updateGain()}updateGain(){if(!this.gainNode)return;const e=this.muted?0:this.volume;this.gainNode.gain.value=e*e}stopQueuedNodes(){this.queuedNodes.forEach(e=>e.stop()),this.queuedNodes.clear()}stopIterator(){return d(this,null,function*(){var e;yield null==(e=this.audioIterator)?void 0:e.return(),this.audioIterator=null})}handleNoAudioTrack(){this.audioSink=null,this.ensureAudioContext()}load(e,t){return d(this,null,function*(){++this.asyncId,yield this.stopIterator(),this.stopQueuedNodes(),this.paused=!0,this.playbackTimeAtStart=0,this.audioContextStartTime=0;const{input:i,audioTrack:r,duration:n}=e;return this.input=i,this.duration=n,r?null!==r.codec&&(yield r.canDecode())?(this.ensureAudioContext(r.sampleRate),this.audioSink=new co(r),void(null==t||t())):(this.audioSink=null,this.ensureAudioContext(),void(null==t||t())):(this.handleNoAudioTrack(),void(null==t||t()))})}runIterator(e){return d(this,null,function*(){if(!this.audioSink)return;yield this.stopIterator(),this.audioIterator=this.audioSink.buffers(this.currentTime);for(;;){if(e!==this.asyncId||this.paused)return;const i=[];let r=!1;try{for(let e=0;e<16;e++){const e=yield this.audioIterator.next();if(e.done){r=!0;break}i.push(e.value)}}catch(t){console.error("Audio iterator error:",t),r=!0}if(e!==this.asyncId||this.paused)return;i.length>0&&"suspended"===this.audioContext.state&&(yield this.audioContext.resume(),this.events.emit("canplay"),this.events.emit("playing"));for(const{buffer:e,timestamp:t}of i){const i=this.audioContext.createBufferSource();i.buffer=e,i.connect(this.gainNode),i.playbackRate.value=this.playbackRate;const r=this.audioContextStartTime+(t-this.playbackTimeAtStart)/this.playbackRate,n=(r+e.duration/this.playbackRate-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart;n>this.latestScheduledEndTime&&(this.latestScheduledEndTime=n),r>=this.audioContext.currentTime?i.start(r):i.start(this.audioContext.currentTime,(this.audioContext.currentTime-r)*this.playbackRate),this.queuedNodes.add(i),i.onended=()=>this.queuedNodes.delete(i)}if(r)break;yield new Promise(e=>setTimeout(e,0));const n=1;for(;this.latestScheduledEndTime-this.currentTime>n;){if(e!==this.asyncId||this.paused)return;yield new Promise(e=>setTimeout(e,50))}}})}play(){return d(this,null,function*(){if(!this.paused)return;this.audioContext||this.ensureAudioContext(),"suspended"===this.audioContext.state&&(yield this.audioContext.resume()),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart,this.paused=!1;const e=++this.asyncId;this.runIterator(e)})}pause(){this.paused||(this.playbackTimeAtStart=this.currentTime,this.paused=!0,this.stopIterator(),this.stopQueuedNodes())}seek(e){return d(this,null,function*(){this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart;const t=++this.asyncId;this.paused||this.runIterator(t)})}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){if(e!==this.playbackRate&&(this.paused||(this.playbackTimeAtStart=this.currentTime,this.audioContextStartTime=this.audioContext.currentTime),this.playbackRate=e,!this.paused)){const e=++this.asyncId;this.runIterator(e)}}destroy(){var e;this.asyncId++,this.pause(),null==(e=this.audioContext)||e.close(),this.audioContext=null,this.input=null,this.audioSink=null}}function ll(e){return d(this,null,function*(){var t,i;return null!=(i=null!=(t=yield e.getAverageBitrate())?t:yield e.getBitrate())?i:0})}const cl=/\.m3u8(?:$|[?#])/i;function ul(e){return"string"===typeof e&&cl.test(e)}function dl(e){const t=function(e){return"string"===typeof e?new vs(e):e instanceof Blob?new ks(e):"undefined"!==typeof ReadableStream&&e instanceof ReadableStream?new Ps(e):null!=e?e:null}(e);return t?new Io({source:t,formats:ul(e)?da:ua}):null}class hl{constructor(){this.active=!0,this.input=null,this.timers=new Set,this.controller="undefined"===typeof AbortController?void 0:new AbortController,this.cancellation=new Promise(e=>{this.resolveCancellation=e})}get signal(){var e;return null==(e=this.controller)?void 0:e.signal}own(e){this.active?this.input=e:e.dispose()}defer(e){if(!this.active)return;const t=setTimeout(()=>{this.timers.delete(t),this.active&&e()},0);this.timers.add(t)}wait(e,t){return d(this,null,function*(){try{yield Promise.race([e,this.cancellation,t>0?this.timeout(t):new Promise(()=>{})])}finally{void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0)}})}timeout(e){return new Promise((t,i)=>{this.deadline=setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){const e=this.input;this.input=null,null==e||e.dispose()}cancel(){var e;if(this.active){this.active=!1;for(const e of this.timers)clearTimeout(e);this.timers.clear(),void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0),this.resolveCancellation(),null==(e=this.controller)||e.abort(),this.disposeInput()}}}function fl(e){return d(this,arguments,function*({input:e,videoTrack:t,audioTrack:i}){const r=[t,i].filter(e=>null!==e),n=t||i,s=Boolean(n&&(yield n.isLive()));let a=Number.NaN;return r.length>0&&(a=yield e.getDurationFromMetadata(r,{skipLiveWait:!0}),null!==a||s||(a=yield e.computeDuration(r,{skipLiveWait:!0}))),s?Number.POSITIVE_INFINITY:null!=a?a:Number.NaN})}class ml{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:n=.12,dropLateFrames:s=!1,poster:a="",preflightRange:o=!1}){this.canvas=e,this.ctx=t,this.events=i,this.timeupdateInterval=r,this.avSyncTolerance=n,this.dropLateFrames=s,this.poster=a,this.preflightRange=o,this.input=null,this.videoSink=null,this.videoIterator=null,this.nextFrame=null,this.rafId=0,this.asyncId=0,this.width=0,this.height=0,this.duration=Number.NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1}preflight(e,t,i){return d(this,null,function*(){return function(e,t,i,r,n=()=>!0){return d(this,null,function*(){if((null==r?void 0:r.aborted)||!n())return!1;if(!t||"string"!==typeof e||ul(e))return!0;try{const t=yield fetch(e,r?{method:"HEAD",signal:r}:{method:"HEAD"});if((null==r?void 0:r.aborted)||!n())return!1;const s=t.headers.get("accept-ranges");return!(!s||"none"===s)||(i.emit("error",new Event("RangeNotSupported")),!1)}catch(s){return!((null==r?void 0:r.aborted)||!n())&&(console.warn("Preflight check failed:",s),!0)}})}(e,this.preflightRange,this.events,t,i)})}drawPoster(){if(!this.poster||this.posterDrawn)return;const e=new Image;e.onload=()=>{this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,this.ctx.drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e.src=this.poster}stopIterator(){return d(this,null,function*(){var e;yield null==(e=this.videoIterator)?void 0:e.return(),this.videoIterator=null})}clear(){this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height)}load(e,t){return d(this,null,function*(){++this.asyncId,yield this.stopIterator(),this.clear(),this.posterDrawn=!1;const{input:i,videoTrack:r,duration:n}=e;if(this.input=i,this.duration=n,!r)return this.handleNoVideoTrack(),void(null==t||t());if(null===r.codec||!(yield r.canDecode()))return this.handleNoVideoTrack(),void(null==t||t());const s=yield r.canBeTransparent();this.videoSink=new so(r,{poolSize:2,fit:"contain",alpha:s}),this.width=r.displayWidth,this.height=r.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,null==t||t(),yield this.resetIterator(0)})}handleNoVideoTrack(){this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster()}resetIterator(e){return d(this,null,function*(){var t,i;if(yield this.stopIterator(),!this.videoSink)return;this.videoIterator=this.videoSink.canvases(e);const r=null!=(t=(yield this.videoIterator.next()).value)?t:null,n=null!=(i=(yield this.videoIterator.next()).value)?i:null;this.nextFrame=n,r?this.ctx.drawImage(r.canvas,0,0):this.drawPoster()})}updateNextFrame(e){return d(this,null,function*(){var t;if(this.videoIterator&&!this.isFetching){this.isFetching=!0;try{for(;;){const i=null!=(t=(yield this.videoIterator.next()).value)?t:null;if(!i||e!==this.asyncId)return;const r=this.audioClock.currentTime,n=this.dropLateFrames?Math.max(.06,this.avSyncTolerance/Math.max(1,this.playbackRate)):0;if(!(this.dropLateFrames&&i.timestampr)return void(this.nextFrame=null)}}}finally{this.isFetching=!1}}})}render(){if(!this.audioClock)return;const e=this.audioClock.currentTime,t=Date.now();if(t-this.lastTimeUpdate>=this.timeupdateInterval&&(this.events.emit("timeupdate"),this.lastTimeUpdate=t),Number.isFinite(this.duration)&&e>=this.duration)return this.stop(),this.stalled=!1,this.events.emit("ended"),this.events.emit("pause"),void this.events.emit("canplay");this.nextFrame&&this.nextFrame.timestamp<=e?(this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.ctx.drawImage(this.nextFrame.canvas,0,0),this.nextFrame=null,this.updateNextFrame(this.asyncId),this.stalled&&(this.events.emit("canplay"),this.events.emit("playing"),this.stalled=!1)):this.nextFrame||(this.updateNextFrame(this.asyncId),!this.nextFrame&&Number.isFinite(this.duration)&&ethis.render())}start(e){this.audioClock=e,this.asyncId++,this.stalled=!1,this.updateNextFrame(this.asyncId),this.rafId=requestAnimationFrame(()=>this.render())}stop(){cancelAnimationFrame(this.rafId)}seek(e){return d(this,null,function*(){this.asyncId++,yield this.resetIterator(e)})}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){this.asyncId++,this.stop(),this.stopIterator(),this.posterDrawn=!1,this.videoSink=null,this.input=null}}class pl{constructor({canvas:e,ctx:t,events:i,option:r={}}){var n,s,a,o,l,c;this.events=i,this.option=r,this.audio=new ol(i),this.video=new ml({canvas:e,ctx:t,events:i,timeupdateInterval:null!=(n=r.timeupdateInterval)?n:250,avSyncTolerance:null!=(s=r.avSyncTolerance)?s:.12,dropLateFrames:null!=(a=r.dropLateFrames)&&a,poster:null!=(o=r.poster)?o:"",preflightRange:null!=(l=r.preflightRange)&&l}),this.paused=!0,this.ended=!1,this.readyState=0,this.networkState=0,this.error=null,this.seeking=!1,this.loadSeq=0,this.input=null,this.media=null,this.loadSession=null,this.destroyed=!1,null==(c=i.addEventListener)||c.call(i,"ended",()=>{this.ended=!0,this.paused=!0})}load(e){return d(this,null,function*(){var t;if(this.destroyed)return;const i=++this.loadSeq;if(null==(t=this.loadSession)||t.cancel(),i!==this.loadSeq||this.destroyed)return;if(this.pause(),i!==this.loadSeq||this.destroyed)return;this.disposeInput();const r=new hl;this.loadSession=r,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,r.defer(()=>this.events.emit("waiting")),r.defer(()=>this.events.emit("loadstart"));const n=Number.isFinite(this.option.loadTimeout)?this.option.loadTimeout:0;try{yield r.wait(this.performLoad(e,i,r),n)}catch(s){if(i!==this.loadSeq)return;const e=++this.loadSeq;if(r.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.error={code:4,message:s.message},this.networkState=3,this.events.emit("error")}})}performLoad(e,t){return d(this,arguments,function*(e,t,i=this.loadSession){if(!(yield this.video.preflight(e,null==i?void 0:i.signal,()=>t===this.loadSeq))||t!==this.loadSeq)return;const r=dl(e);if(!r)return this.video.handleNoVideoTrack(),void this.audio.handleNoAudioTrack();i.own(r);const n=yield function(e,t){return d(this,null,function*(){const i=yield e.getPrimaryVideoTrack(),r=i?yield i.getPrimaryPairableAudioTrack():yield e.getPrimaryAudioTrack(),n=yield fl({input:e,videoTrack:i,audioTrack:r}),s=i||r,a=ul(t);return{input:e,videoTrack:i,audioTrack:r,duration:n,isLive:!Number.isFinite(n)&&Boolean(s&&(yield s.isLive())),isHls:a,videoMode:a?"auto":"manual",audioMode:a?"auto":"manual"}})}(r,e);if(t!==this.loadSeq)return;this.input=r,this.media=n;let s=!n.videoTrack,a=!n.audioTrack;const o=()=>{s&&a&&(this.readyState=1,this.events.emit("loadedmetadata"),this.events.emit("durationchange"),this.events.emit("progress"))};try{if(yield Promise.all([this.video.load(n,()=>{t===this.loadSeq&&(s=!0,o())}),this.audio.load(n,()=>{t===this.loadSeq&&(a=!0,o())})]),t!==this.loadSeq)return;this.readyState=4,this.networkState=1,this.events.emit("loadeddata"),this.events.emit("canplay"),this.events.emit("canplaythrough"),this.events.emit("progress")}catch(l){if(t!==this.loadSeq)return;throw console.error("MediaBunny load error:",l),l}})}createTimeout(e){return new Promise((t,i)=>{setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){var e;null==(e=this.loadSession)||e.disposeInput(),this.input=null,this.media=null}replaceTracks(e){return d(this,arguments,function*({videoTrack:e,audioTrack:t,videoMode:i,audioMode:r}){if(!this.media)return;const n=u(c({},this.media),{videoTrack:e,audioTrack:t,videoMode:i,audioMode:r}),s=!this.paused,a=this.currentTime;this.pause(),this.ended=!1,this.seeking=!0,this.events.emit("seeking"),this.events.emit("waiting"),n.duration=yield fl(n),this.media=n,yield Promise.all([this.video.load(n),this.audio.load(n)]),yield Promise.all([this.video.seek(a),this.audio.seek(a)]),this.readyState=4,this.networkState=1,this.seeking=!1,this.events.emit("loadedmetadata"),this.events.emit("durationchange"),this.events.emit("progress"),this.events.emit("loadeddata"),this.events.emit("canplay"),this.events.emit("canplaythrough"),this.events.emit("seeked"),s&&(yield this.play())})}selectHlsQuality(e){return d(this,null,function*(){var t,i;if(!(null==(t=this.media)?void 0:t.isHls)||!this.input)return;const r=yield this.input.getVideoTracks(),n="auto"===e?yield this.input.getPrimaryVideoTrack():null!=(i=r.find(t=>t.id===e))?i:this.media.videoTrack;if(!n)return;let s=this.media.audioTrack,a=this.media.audioMode;s&&n.canBePairedWith(s)||(s=yield n.getPrimaryPairableAudioTrack(),a="auto"),yield this.replaceTracks({videoTrack:n,audioTrack:s,videoMode:"auto"===e?"auto":"manual",audioMode:a})})}selectHlsAudio(e){return d(this,null,function*(){var t,i;if(!(null==(t=this.media)?void 0:t.isHls)||!this.input)return;const r=yield this.input.getAudioTracks(),n="auto"===e?this.media.videoTrack?yield this.media.videoTrack.getPrimaryPairableAudioTrack():yield this.input.getPrimaryAudioTrack():null!=(i=r.find(t=>t.id===e))?i:this.media.audioTrack;if(!n)return;let s=this.media.videoTrack,a=this.media.videoMode;s&&n.canBePairedWith(s)||(s=yield n.getPrimaryPairableVideoTrack(),a="auto"),yield this.replaceTracks({videoTrack:s,audioTrack:n,videoMode:a,audioMode:"auto"===e?"auto":"manual"})})}getHlsState(){return function(e){return d(this,null,function*(){var t,i,r,n;if(!(null==e?void 0:e.isHls)||!e.input)return null;const[s,a]=yield Promise.all([e.input.getVideoTracks(),e.videoTrack?e.videoTrack.getPairableAudioTracks():[]]),[o,l]=yield Promise.all([Promise.all(s.map((e,t)=>d(null,null,function*(){return{id:e.id,track:e,index:t,name:yield e.getName(),height:yield e.getDisplayHeight(),bitrate:yield ll(e)}}))),Promise.all(a.map((e,t)=>d(null,null,function*(){const i=yield e.getName(),r=yield e.getLanguageCode();return{id:e.id,track:e,index:t,name:i,lang:r,language:r,bitrate:yield ll(e)}})))]);return{levels:o,audios:l,currentLevel:e.videoTrack&&null!=(t=o.find(t=>{var i;return t.id===(null==(i=e.videoTrack)?void 0:i.id)}))?t:null,currentAudio:e.audioTrack&&null!=(i=l.find(t=>{var i;return t.id===(null==(i=e.audioTrack)?void 0:i.id)}))?i:null,videoMode:null!=(r=e.videoMode)?r:"auto",audioMode:null!=(n=e.audioMode)?n:"auto"}})}(this.media)}play(){return d(this,null,function*(){this.paused&&(this.ended&&(this.ended=!1,yield this.seek(0)),this.paused=!1,yield this.audio.play(),this.video.start(this.audio),this.events.emit("play"),this.events.emit("playing"))})}pause(){this.paused||(this.paused=!0,this.audio.pause(),this.video.stop(),this.events.emit("pause"))}seek(e){return d(this,null,function*(){const t=!this.paused;this.ended=!1,this.seeking=!0,this.events.emit("seeking"),this.events.emit("waiting"),this.pause(),yield Promise.all([this.audio.seek(e),this.video.seek(e)]),this.seeking=!1,this.events.emit("seeked"),t&&!this.ended&&(yield this.play())})}setVolume(e,t){this.audio.setVolume(e,t)}setPlaybackRate(e){this.audio.setPlaybackRate(e),this.video.setPlaybackRate(e)}destroy(){var e;this.destroyed||(this.destroyed=!0,this.loadSeq++,null==(e=this.loadSession)||e.cancel(),this.pause(),this.disposeInput(),this.audio.destroy(),this.video.destroy())}get currentTime(){return this.audio.currentTime}get duration(){var e,t,i;return null!=(i=null!=(t=null==(e=this.media)?void 0:e.duration)?t:this.audio.duration)?i:this.video.duration}get videoWidth(){return this.video.width}get videoHeight(){return this.video.height}}class gl{constructor({art:e,canvas:t,ctx:i,option:r}){var n,s;this.art=e,this.canvas=t,this.option=r,this.events=new k,this.engine=new pl({canvas:t,ctx:i,events:this.events,option:r}),this._src=null,this._volume=null!=(n=r.volume)?n:.7,this._muted=!!r.muted,this._playbackRate=1,this.engine.setVolume(this._volume,this._muted),this.setupEventForwarding(),r.source?this.src=r.source:(null==(s=e.option)?void 0:s.url)&&(this.src=e.option.url)}setupEventForwarding(){const{events:e}=this.art.constructor.config;e.forEach(e=>{this.events.addEventListener(e,e=>{this.art.emit(`video:${e.type}`,e)})})}addEventListener(e,t){this.events.addEventListener(e,t)}removeEventListener(e,t){this.events.removeEventListener(e,t)}get src(){return this._src}set src(e){this._src=e,e&&this.engine.load(e)}get currentSrc(){return this._src}get currentTime(){return this.engine.currentTime}set currentTime(e){this.engine.seek(Number(e)||0)}get duration(){return this.engine.duration}get buffered(){return this.createTimeRanges(0,this.engine.duration)}get played(){return this.createTimeRanges(0,this.engine.currentTime)}get seekable(){return this.createTimeRanges(0,this.engine.duration)}createTimeRanges(e,t){const i=this.engine.duration;return!i||Number.isNaN(i)||t<=0?{length:0,start:()=>0,end:()=>0}:{length:1,start:()=>e,end:()=>t}}get paused(){return this.engine.paused}get playing(){return!this.engine.paused&&!this.engine.ended}get ended(){return this.engine.ended}get seeking(){return this.engine.seeking}get readyState(){return this.engine.readyState}get networkState(){return this.engine.networkState}get error(){return this.engine.error}get playbackRate(){return this._playbackRate}set playbackRate(e){const t=Number(e);Number.isNaN(t)||t<=0||(this._playbackRate=t,this.engine.setPlaybackRate(t),this.events.emit("ratechange"))}get volume(){return this._volume}set volume(e){this._volume=function(e,t,i){return Math.max(t,Math.min(i,Number(e)||0))}(e,0,1),this._muted=!1,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}get muted(){return this._muted}set muted(e){this._muted=!!e,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}play(){return this.engine.play()}pause(){this.engine.pause()}load(){this._src&&this.engine.load(this._src)}getM3u8State(){return this.engine.getHlsState()}switchM3u8Quality(e){return this.engine.selectHlsQuality(e)}switchM3u8Audio(e){return this.engine.selectHlsAudio(e)}get videoWidth(){return this.engine.videoWidth}get videoHeight(){return this.engine.videoHeight}get poster(){return this.option.poster||""}set poster(e){this.option.poster=e}get autoplay(){return this.option.autoplay||!1}set autoplay(e){}get loop(){return this.option.loop||!1}set loop(e){}get controls(){return!1}set controls(e){}get playsInline(){return!0}set playsInline(e){}get crossOrigin(){return this.option.crossOrigin||""}set crossOrigin(e){}get preload(){return"auto"}set preload(e){}get defaultMuted(){return!1}set defaultMuted(e){}get defaultPlaybackRate(){return 1}set defaultPlaybackRate(e){}canPlayType(e){return"maybe"}getBoundingClientRect(){return this.canvas.getBoundingClientRect()}requestVideoFrameCallback(e){return requestAnimationFrame(t=>{e(t,{presentationTime:this.engine.currentTime,expectedDisplayTime:t+16.6,width:this.engine.videoWidth,height:this.engine.videoHeight,mediaTime:this.engine.currentTime,presentedFrames:0,processingDuration:0,captureTime:t,receiveTime:t,rtpTimestamp:0})})}cancelVideoFrameCallback(e){cancelAnimationFrame(e)}setAttribute(e,t){"src"===e?this.src=t:"autoplay"===e?this.autoplay=t:"loop"===e?this.loop=t:"muted"===e?this.muted=!0:this.canvas.setAttribute(e,t)}destroy(){this.engine.destroy()}}return function(e={}){return t=>{const{constructor:i}=t,{createElement:r}=i.utils,n=r("canvas"),s=n.getContext("2d"),a=new gl({art:t,canvas:n,ctx:s,option:e});t.mediabunny=a;const o={};for(const e in n)"function"===typeof n[e]&&(o[e]=n[e].bind(n));const l=new Set([...Object.getOwnPropertyNames(a),...Object.getOwnPropertyNames(Object.getPrototypeOf(a))]);for(const e of l)"constructor"!==e&&(e in n||Object.defineProperty(n,e,{get(){const t=a[e];return"function"===typeof t?t.bind(a):t},set(t){a[e]=t},configurable:!0,enumerable:!0}));for(const e in o)n[e]=(...t)=>o[e](...t);function c(){var e;(null==(e=t.template)?void 0:e.$player)&&!t.option.autoSize&&Object.assign(n.style,{width:"100%",height:"100%",objectFit:"contain"})}return t.on("resize",c),t.on("video:loadedmetadata",c),function({art:e,shim:t,option:i}){if(i.m3u8)return e.on("video:loadedmetadata",u),e.on("restart",u),{update:u};function r(t){e.controls.cache.has(t)&&e.controls.remove(t)}function n(t){e.setting.find(t)&&e.setting.remove(t)}function s(){r("mediabunny-quality"),n("mediabunny-quality")}function a(){r("mediabunny-audio"),n("mediabunny-audio")}function o(e={}){return e.control||e.setting}function l(r){return d(this,null,function*(){var n;const a=(null==(n=i.m3u8)?void 0:n.quality)||{};if(!o(a)||!(null==r?void 0:r.levels.length))return void s();const l=a.auto||"Auto",c=a.title||"Quality",h=a.getName||(e=>e.name||`${e.height}P`),f=r.currentLevel?h(r.currentLevel):l,m=g(r.levels.map(e=>{var t;return{html:h(e),value:e.id,default:(null==(t=r.currentLevel)?void 0:t.id)===e.id}}),"html").sort((e,t)=>{const i=r.levels.find(t=>t.id===e.value),n=r.levels.find(e=>e.id===t.value);return((null==n?void 0:n.height)||0)-((null==i?void 0:i.height)||0)});m.push({html:l,value:"auto",default:!r.currentLevel});const p=i=>d(null,null,function*(){return yield t.switchM3u8Quality(i.value),e.notice.show=`${c}: ${i.html}`,yield u(),i.html});a.control&&e.controls.update({name:"mediabunny-quality",position:"right",html:f,style:{padding:"0 10px"},selector:m,onSelect:p}),a.setting&&e.setting.update({name:"mediabunny-quality",tooltip:f,html:c,icon:'',width:200,selector:m,onSelect:p})})}function c(r){return d(this,null,function*(){var n;const s=(null==(n=i.m3u8)?void 0:n.audio)||{};if(!o(s)||!(null==r?void 0:r.audios.length)||r.audios.length<2)return void a();const l=s.auto||"Auto",c=s.title||"Audio",h=s.getName||(e=>e.name||e.lang||e.language),f=r.currentAudio?h(r.currentAudio):l,m=g(r.audios.map(e=>{var t;return{html:h(e),value:e.id,default:(null==(t=r.currentAudio)?void 0:t.id)===e.id}}),"html");m.push({html:l,value:"auto",default:!r.currentAudio});const p=i=>d(null,null,function*(){return yield t.switchM3u8Audio(i.value),e.notice.show=`${c}: ${i.html}`,yield u(),i.html});s.control&&e.controls.update({name:"mediabunny-audio",position:"right",html:f,style:{padding:"0 10px"},selector:m,onSelect:p}),s.setting&&e.setting.update({name:"mediabunny-audio",tooltip:f,html:c,icon:'',width:200,selector:m,onSelect:p})})}function u(){return d(this,null,function*(){const e=yield t.getM3u8State();if(!e)return s(),void a();yield Promise.all([l(e),c(e)])})}}({art:t,shim:a,option:e}),t.on("destroy",()=>{delete t.mediabunny,a.destroy()}),n}}}); +!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerProxyMediabunny=t(),define(function(){return e.artplayerProxyMediabunny})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerProxyMediabunny=t()}(this,function(){"use strict";var e,t=Object.defineProperty,i=Object.defineProperties,r=Object.getOwnPropertyDescriptors,n=Object.getOwnPropertySymbols,s=Object.prototype.hasOwnProperty,a=Object.prototype.propertyIsEnumerable,o=(e,t)=>(t=Symbol[e])?t:Symbol.for("Symbol."+e),l=e=>{throw TypeError(e)},c=Math.pow,u=(e,i,r)=>i in e?t(e,i,{enumerable:!0,configurable:!0,writable:!0,value:r}):e[i]=r,d=(e,t)=>{for(var i in t||(t={}))s.call(t,i)&&u(e,i,t[i]);if(n)for(var i of n(t))a.call(t,i)&&u(e,i,t[i]);return e},h=(e,t)=>i(e,r(t)),f=(e,t,i)=>t.has(e)||l("Cannot "+i),m=(e,t,i)=>(f(e,t,"read from private field"),i?i.call(e):t.get(e)),p=(e,t,i)=>new Promise((r,n)=>{var s=e=>{try{o(i.next(e))}catch(t){n(t)}},a=e=>{try{o(i.throw(e))}catch(t){n(t)}},o=e=>e.done?r(e.value):Promise.resolve(e.value).then(s,a);o((i=i.apply(e,t)).next())}),g=function(e,t){this[0]=e,this[1]=t},k=(e,t,i)=>{var r,n=(e,t,r,s)=>{try{var a=i[e](t),o=(t=a.value)instanceof g,l=a.done;Promise.resolve(o?t[0]:t).then(i=>o?n("return"===e?e:"next",t[1]?{done:i.done,value:i.value}:i,r,s):r({value:i,done:l})).catch(e=>n("throw",e,r,s))}catch(c){s(c)}},s=(e,t,i,s)=>a[e]=a=>(t=new Promise((t,i,s)=>(s=()=>n(e,a,t,i),r?r.then(s):s())),s=()=>r===i&&(r=0),r=i=t.then(s,s),t),a={};return i=i.apply(e,t),a[o("asyncIterator")]=()=>a,s("next"),s("throw"),s("return"),a},y=e=>{var t,i=e[o("asyncIterator")],r=!1,n={};return null==i?(i=e[o("iterator")](),t=e=>n[e]=t=>i[e](t)):(i=i.call(e),t=e=>n[e]=t=>{if(r){if(r=!1,"throw"===e)throw t;return t}return r=!0,{done:!1,value:new g(new Promise(r=>{var n=i[e](t);n instanceof Object||l("Object expected"),r(n)}),1)}}),n[o("iterator")]=()=>n,t("next"),"throw"in i?t("throw"):n.throw=e=>{throw e},"return"in i&&t("return"),n},b=(e,t,i)=>(t=e[o("asyncIterator")])?t.call(e):(e=e[o("iterator")](),t={},(i=(i,r)=>(r=e[i])&&(t[i]=t=>new Promise((i,n,s)=>(t=r.call(e,t),s=t.done,Promise.resolve(t.value).then(e=>i({value:e,done:s}),n)))))("next"),i("return"),t);function T(e,t){const i=new Map;return e.filter(e=>{const r=e[t];return void 0===r||!i.has(r)&&i.set(r,1)})}class v{constructor(){var t,i,r;t=this,r=!1,(i=e).has(t)?l("Cannot add the same private member more than once"):i instanceof WeakSet?i.add(t):i.set(t,r),this.listeners=new Map}addEventListener(t,i){var r;m(this,e)||(this.listeners.has(t)||this.listeners.set(t,[]),null==(r=this.listeners.get(t))||r.push(i))}removeEventListener(e,t){const i=this.listeners.get(e);if(!i)return;const r=i.indexOf(t);r>=0&&i.splice(r,1)}emit(t,i){var r;if(m(this,e))return;const n=Object.assign(new Event(t),{detail:i});null==(r=this.listeners.get(t))||r.forEach(t=>{m(this,e)||t(n)})}destroy(){var t,i,r,n;r=!0,f(t=this,i=e,"write to private field"),n?n.call(t,r):i.set(t,r),this.listeners.clear()}}function S(e){if(!e)throw new Error("Assertion failed.")}e=new WeakMap;const w=e=>{const t=(e%360+360)%360;if(0===t||90===t||180===t||270===t)return t;throw new Error(`Invalid rotation ${e}.`)},P=e=>e&&e[e.length-1],I=e=>{let t=0;for(;0===e.readBits(1)&&t<32;)t++;if(t>=32)throw new Error("Invalid exponential-Golomb code.");return(1<{const i=t+1,r=Math.floor(Math.log2(i));e.writeBits(r,0),e.writeBits(1,1),e.writeBits(r,i-c(2,r))},C=e=>{const t=I(e);return 0===(1&t)?-(t>>1):t+1>>1},B=e=>e.constructor===Uint8Array?e:ArrayBuffer.isView(e)?new Uint8Array(e.buffer,e.byteOffset,e.byteLength):new Uint8Array(e),E=e=>e.constructor===DataView?e:ArrayBuffer.isView(e)?new DataView(e.buffer,e.byteOffset,e.byteLength):new DataView(e),_=new TextDecoder,R=e=>Object.fromEntries(Object.entries(e).map(([e,t])=>[t,e])),F={bt709:1,bt470bg:5,smpte170m:6,bt2020:9,smpte432:12},A=R(F),D={bt709:1,smpte170m:6,linear:8,"iec61966-2-1":13,pq:16,hlg:18},M=R(D),N={rgb:0,bt709:1,bt470bg:5,smpte170m:6,"bt2020-ncl":9},O=R(N),L=e=>!!e&&!!e.primaries&&!!e.transfer&&!!e.matrix&&void 0!==e.fullRange,z={primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0},U=e=>e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e);class q{constructor(){this.currentPromise=Promise.resolve(),this.pending=0}acquire(){return p(this,null,function*(){let e;const t=new Promise(t=>{let i=!1;e=()=>{i||(t(),this.pending--,i=!0)}}),i=this.currentPromise;return this.currentPromise=t,this.pending++,yield i,e})}}const W=/^[0-9a-fA-F]+$/,H=e=>[...e].map(e=>e.toString(16).padStart(2,"0")).join(""),V=e=>(e=(e=(e=(e=(e=e>>1&1431655765|(1431655765&e)<<1)>>2&858993459|(858993459&e)<<2)>>4&252645135|(252645135&e)<<4)>>8&16711935|(16711935&e)<<8)>>16&65535|(65535&e)<<16)>>>0,j=(e,t,i)=>{let r=0,n=e.length-1,s=-1;for(;r<=n;){const a=r+n>>1,o=i(e[a]);o===t?(s=a,n=a-1):o{let r=0,n=e.length-1,s=-1;for(;r<=n;){const a=r+(n-r+1)/2|0;i(e[a])<=t?(s=a,r=a+1):n=a-1}return s},X=(e,t,i)=>{const r=K(e,i(t),i);e.splice(r+1,0,t)},$=()=>{let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}},G=(e,t)=>{const i=e.indexOf(t);-1!==i&&e.splice(i,1)},Q=(e,t)=>{for(let i=e.length-1;i>=0;i--)if(t(e[i]))return e[i]},Y=(e,t)=>{for(let i=e.length-1;i>=0;i--)if(t(e[i]))return i;return-1},J=e=>{throw new Error(`Unexpected value: ${e}`)},Z=(e,t,i)=>{const r=e.getUint8(t),n=e.getUint8(t+1),s=e.getUint8(t+2);return i?r|n<<8|s<<16:r<<16|n<<8|s},ee=(e,t,i,r)=>{i>>>=0,i&=16777215,e.setUint8(t,i>>>16&255),e.setUint8(t+1,i>>>8&255),e.setUint8(t+2,255&i)},te=(e,t)=>({next(){return p(this,null,function*(){const i=yield e.next();return i.done?{value:void 0,done:!0}:{value:t(i.value),done:!1}})},return:()=>e.return(),throw:t=>e.throw(t),[Symbol.asyncIterator](){return this}}),ie=(e,t,i)=>Math.max(t,Math.min(i,e)),re="und",ne=e=>{const t=Math.round(e);return Math.abs(e/t-1)<10*Number.EPSILON?t:e},se=(e,t)=>Math.round(e/t)*t,ae=(e,t)=>Math.round(e*t)/t,oe=(e,t)=>Math.floor(e/t)*t,le=e=>{let t=0;for(;0!==e;)e&=e-1,t++;return t},ce=/^[a-z]{3}$/,ue=e=>ce.test(e),de=1e6*(1+Number.EPSILON),he=(e,t)=>{const i=d(d({},e),t);if(e.headers||t.headers){const r=e.headers?fe(e.headers):{},n=t.headers?fe(t.headers):{},s=d({},r);Object.entries(n).forEach(([e,t])=>{const i=Object.keys(s).find(t=>t.toLowerCase()===e.toLowerCase());i&&delete s[i],s[e]=t}),i.headers=s}return i},fe=e=>{if(e instanceof Headers){const t={};return e.forEach((e,i)=>{t[i]=e}),t}if(Array.isArray(e)){const t={};return e.forEach(([e,i])=>{t[e]=i}),t}return e},me=(e,t,i,r,n)=>p(null,null,function*(){let s=0;for(;;)try{return yield e(t,i)}catch(a){if(n())throw a;s++;const e=r(s,a,t);if(null===e)throw a;if(ze._error("Retrying failed fetch. Error:",a),!Number.isFinite(e)||e<0)throw new TypeError("Retry delay must be a non-negative finite number.");if(e>0&&(yield Me(1e3*e)),n())throw a}});class pe{constructor(){this.currentPromise=Promise.resolve()}call(e){return this.currentPromise=this.currentPromise.then(e)}}let ge=null;const ke=()=>{var e;return null!==ge?ge:ge=!("undefined"===typeof navigator||!((null==(e=navigator.vendor)?void 0:e.match(/apple/i))||/AppleWebKit/.test(navigator.userAgent)&&!/Chrome/.test(navigator.userAgent)||/\b(iPad|iPhone|iPod)\b/.test(navigator.userAgent)))};let ye=null;const be=()=>{var e;return null!==ye?ye:ye="undefined"!==typeof navigator&&(null==(e=navigator.userAgent)?void 0:e.includes("Firefox"))};let Te=null;const ve=()=>{var e;return null!==Te?Te:Te=!("undefined"===typeof navigator||!(null==(e=navigator.vendor)?void 0:e.includes("Google Inc"))&&!/Chrome/.test(navigator.userAgent))},Se=e=>"undefined"===typeof globalThis.isSecureContext||globalThis.isSecureContext?`${e} is not available in this environment.`:`${e} is not available in this environment; this may be because this page is running in an insecure context. Try serving your page over HTTPS or use localhost.`,we=p(null,null,function*(){}).constructor,Pe=e=>e instanceof we||e instanceof Promise||"function"===typeof(null==e?void 0:e.then),Ie=(e,t)=>-1!==e?e:t,xe=(e,t,i,r)=>e<=r&&i<=t,Ce=e=>{const t=atob(e),i=new Uint8Array(t.length);for(let r=0;r{null!=Symbol.dispose||(Symbol.dispose=Symbol("Symbol.dispose"))},Ee=e=>"number"===typeof e&&!Number.isNaN(e),_e=(e,t)=>{if(t.includes("://"))return t;if(e.includes("://")){const t=e.indexOf("?");-1!==t&&(e=e.slice(0,t))}let i;if(t.startsWith("/")){const r=e.indexOf("://");if(-1===r)i=t;else{const n=e.indexOf("/",r+3);i=-1===n?e+t:e.slice(0,n)+t}}else{const r=e.lastIndexOf("/");i=-1===r?t:e.slice(0,r+1)+t}let r="";const n=i.indexOf("://");if(-1!==n){const e=i.indexOf("/",n+3);-1!==e&&(r=i.slice(0,e),i=i.slice(e))}const s=i.split("/"),a=[];for(const o of s)".."===o?a.pop():"."!==o&&a.push(o);return r+a.join("/")},Re=(e,t)=>{let i=0;for(let r=0;r{let i=-1,r=1/0;for(let n=0;n{S(Number.isInteger(e.num)),S(Number.isInteger(e.den)),S(0!==e.den);let t=Math.abs(e.num),i=Math.abs(e.den);for(;0!==i;){const e=t%i;t=i,i=e}const r=t||1;return{num:e.num/r,den:e.den/r}},De=(e,t)=>{if("object"!==typeof e||!e)throw new TypeError(`${t} must be an object.`);if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(`${t}.left must be a non-negative integer.`);if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(`${t}.top must be a non-negative integer.`);if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(`${t}.width must be a non-negative integer.`);if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(`${t}.height must be a non-negative integer.`)},Me=e=>new Promise(t=>setTimeout(t,e));class Ne{constructor(){this._listeners=new Map}on(e,t,i){var r;this._listeners.has(e)||this._listeners.set(e,new Set);const n={fn:t,once:null!=(r=null==i?void 0:i.once)&&r};return this._listeners.get(e).add(n),()=>{var t;null==(t=this._listeners.get(e))||t.delete(n)}}_emit(...e){const[t,i]=e,r=this._listeners.get(t);if(r)for(const s of r){try{s.fn(i)}catch(n){console.error(n)}s.once&&r.delete(s)}}}var Oe,Le;(Le=Oe||(Oe={}))[Le.Silent=0]="Silent",Le[Le.Errors=1]="Errors",Le[Le.Warnings=2]="Warnings",Le[Le.Info=3]="Info";class ze{constructor(){}static get level(){return ze._level}static set level(e){if(e!==Oe.Silent&&e!==Oe.Errors&&e!==Oe.Warnings&&e!==Oe.Info)throw new TypeError("Invalid log level. Use one of the values of the LogLevel enum.");ze._level=e}static get _emitter(){var e;return null!=(e=ze._emitterInstance)?e:ze._emitterInstance=new Ne}static on(e,t,i){return ze._emitter.on(e,t,i)}static _error(...e){ze._emitter._emit("error",e),ze._level>=Oe.Errors&&console.error(...e)}static _warn(...e){ze._emitter._emit("warn",e),ze._level>=Oe.Warnings&&console.warn(...e)}static _info(...e){ze._emitter._emit("info",e),ze._level>=Oe.Info&&console.info(...e)}}ze._level=Oe.Info,ze._emitterInstance=null;class Ue{constructor(e,t){if(this.data=e,this.mimeType=t,!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("string"!==typeof t)throw new TypeError("mimeType must be a string.")}}class qe{constructor(e,t,i,r){if(this.data=e,this.mimeType=t,this.name=i,this.description=r,!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if(void 0!==t&&"string"!==typeof t)throw new TypeError("mimeType, when provided, must be a string.");if(void 0!==i&&"string"!==typeof i)throw new TypeError("name, when provided, must be a string.");if(void 0!==r&&"string"!==typeof r)throw new TypeError("description, when provided, must be a string.")}}const We={default:!0,primary:!0,forced:!1,original:!1,commentary:!1,hearingImpaired:!1,visuallyImpaired:!1};class He{constructor(e){this.bytes=e,this.pos=0}seekToByte(e){this.pos=8*e}readBit(){var e;const t=Math.floor(this.pos/8),i=null!=(e=this.bytes[t])?e:0,r=7-(7&this.pos),n=(i&1<>r;return this.pos++,n}readBits(e){if(1===e)return this.readBit();let t=0;for(let i=0;i>i-r-1<0&&this.writeBits(r,t.readBits(r))}readAlignedByte(){var e;if(this.pos%8!==0)throw new Error("Bitstream is not byte-aligned.");const t=this.pos/8,i=null!=(e=this.bytes[t])?e:0;return this.pos+=8,i}skipBits(e){this.pos+=e}getBitsLeft(){return 8*this.bytes.length-this.pos}clone(){const e=new He(this.bytes);return e.pos=this.pos,e}}const Ve=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350],je=[-1,1,2,3,4,5,6,8],Ke=e=>{if(!e||e.byteLength<2)throw new TypeError("AAC description must be at least 2 bytes long.");const t=new He(e),i=Xe(t),{frequencyIndex:r,sampleRate:n}=$e(t),s=t.readBits(4);let a=null;s>=1&&s<=7&&(a=je[s]);let o=i,l=!1,c=n;if(5===i||29===i)l=29===i,c=$e(t).sampleRate,o=Xe(t),22===o&&t.skipBits(4);else for(;t.getBitsLeft()>15;){const e=t.pos;if(695===t.readBits(11)){5===Xe(t)&&t.readBits(1)&&(c=$e(t).sampleRate,t.getBitsLeft()>11&&1352===t.readBits(11)&&(l=!!t.readBits(1)));break}t.pos=e+1}return null!==a&&a>1&&(l=!1),{objectType:i,coreObjectType:o,frequencyIndex:r,channelConfiguration:s,outputSampleRate:c,outputNumberOfChannels:l&&1===a?2:a}},Xe=e=>{const t=e.readBits(5);return 31===t?32+e.readBits(6):t},$e=e=>{const t=e.readBits(4);return 15===t?{frequencyIndex:t,sampleRate:e.readBits(24)}:{frequencyIndex:t,sampleRate:t=e.length-2)break;t=r;let n=0;t+3i&&(yield{offset:i,length:t-i}),i=t+n,t=i):t++}-1!==i&&i{if(t.description){const i=3&B(t.description)[4];return it(e,i+1)}return tt(e)},nt=e=>31&e,st=e=>{const t=[],i=e.length;for(let r=0;r{const t=e.reduce((e,t)=>e+at.byteLength+t.byteLength,0),i=new Uint8Array(t);let r=0;for(const n of e)i.set(at,r),r+=at.byteLength,i.set(n,r),r+=n.byteLength;return i},lt=(e,t)=>{const i=e.reduce((e,i)=>e+t+i.byteLength,0),r=new Uint8Array(i);let n=0;for(const s of e){const e=new DataView(r.buffer,r.byteOffset,r.byteLength);switch(t){case 1:e.setUint8(n,s.byteLength);break;case 2:e.setUint16(n,s.byteLength,!1);break;case 3:ee(e,n,s.byteLength);break;case 4:e.setUint32(n,s.byteLength,!1)}n+=t,r.set(s,n),n+=s.byteLength}return r},ct=e=>{try{const t=[],i=[],r=[];for(const o of tt(e)){const n=e.subarray(o.offset,o.offset+o.length),s=nt(n[0]);s===Ye.SPS?t.push(n):s===Ye.PPS?i.push(n):s===Ye.SPS_EXT&&r.push(n)}if(0===t.length)return null;if(0===i.length)return null;const n=t[0],s=ft(n);S(null!==s);const a=100===s.profileIdc||110===s.profileIdc||122===s.profileIdc||144===s.profileIdc;return{configurationVersion:1,avcProfileIndication:s.profileIdc,profileCompatibility:s.constraintFlags,avcLevelIndication:s.levelIdc,lengthSizeMinusOne:3,sequenceParameterSets:t,pictureParameterSets:i,chromaFormat:a?s.chromaFormatIdc:null,bitDepthLumaMinus8:a?s.bitDepthLumaMinus8:null,bitDepthChromaMinus8:a?s.bitDepthChromaMinus8:null,sequenceParameterSetExt:a?r:null}}catch(t){return ze._error("Error building AVC Decoder Configuration Record:",t),null}},ut=e=>{const t=[];t.push(e.configurationVersion),t.push(e.avcProfileIndication),t.push(e.profileCompatibility),t.push(e.avcLevelIndication),t.push(252|3&e.lengthSizeMinusOne),t.push(224|31&e.sequenceParameterSets.length);for(const i of e.sequenceParameterSets){const e=i.byteLength;t.push(e>>8),t.push(255&e);for(let r=0;r>8),t.push(255&e);for(let r=0;r>8),t.push(255&e);for(let r=0;r{try{const t=E(e);let i=0;const r=t.getUint8(i++),n=t.getUint8(i++),s=t.getUint8(i++),a=t.getUint8(i++),o=3&t.getUint8(i++),l=31&t.getUint8(i++),c=[];for(let f=0;f{var t;try{const i=st(e),r=new He(i);r.skipBits(1),r.skipBits(2);if(7!==r.readBits(5))return null;const n=r.readAlignedByte(),s=r.readAlignedByte(),a=r.readAlignedByte();I(r);let o=1,l=0,c=0,u=0;if(100===n||110===n||122===n||244===n||44===n||83===n||86===n||118===n||128===n){o=I(r),3===o&&(u=r.readBits(1)),l=I(r),c=I(r),r.skipBits(1);if(r.readBits(1))for(let e=0;e<(3!==o?8:12);e++){if(r.readBits(1)){const t=e<6?16:64;let i=8,n=8;for(let e=0;ee.level>=a))?t:P(ui),n=Math.min(Math.floor(r.maxDpbMbs/(e*i)),16);B=n,E=n}else B=0,E=0}return S(null!==E),{emulationUnpreventedBytes:i,profileIdc:n,constraintFlags:s,levelIdc:a,frameMbsOnlyFlag:y,chromaFormatIdc:o,bitDepthLumaMinus8:l,bitDepthChromaMinus8:c,codedWidth:m,codedHeight:p,displayWidth:g,displayHeight:k,pixelAspectRatio:x,colourPrimaries:b,matrixCoefficients:v,transferCharacteristics:T,fullRangeFlag:w,numReorderFrames:B,maxDecFrameBuffering:E,vuiParametersFlagBitOffset:F,bitstreamRestrictionFlagBitOffset:_,bitstreamRestrictionFlag:R}}catch(i){return ze._error("Error parsing AVC SPS:",i),null}},mt=e=>{const t=I(e);e.skipBits(4),e.skipBits(4);for(let i=0;i<=t;i++)I(e),I(e),e.skipBits(1);e.skipBits(5),e.skipBits(5),e.skipBits(5),e.skipBits(5)},pt=e=>{S(1!==e.bitstreamRestrictionFlag);const t=new Uint8Array(e.emulationUnpreventedBytes.byteLength+64),i=new He(e.emulationUnpreventedBytes),r=new He(t);null===e.bitstreamRestrictionFlag?(r.copyBits(e.vuiParametersFlagBitOffset,i),r.writeBits(1,1),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0)):(S(null!==e.bitstreamRestrictionFlagBitOffset),r.copyBits(e.bitstreamRestrictionFlagBitOffset,i)),r.writeBits(1,1),r.writeBits(1,1),x(r,2),x(r,1),x(r,16),x(r,16),x(r,e.numReorderFrames),x(r,e.maxDecFrameBuffering),r.writeBits(1,1),r.writeBits((8-r.pos%8)%8,0);const n=r.pos/8;return S(Number.isInteger(n)),(e=>{const t=[];let i=0;for(const r of e)2===i&&r<=3&&(t.push(3),i=0),t.push(r),i=0===r?i+1:0;return new Uint8Array(t)})(t.subarray(0,n))},gt=(e,t)=>{if(t.description){const i=3&B(t.description)[21];return it(e,i+1)}return tt(e)},kt=e=>e>>1&63,yt=e=>{try{const t=new He(st(e));t.skipBits(16),t.readBits(4);const i=t.readBits(3),r=t.readBits(1),{general_profile_space:n,general_tier_flag:s,general_profile_idc:a,general_profile_compatibility_flags:o,general_constraint_indicator_flags:l,general_level_idc:c}=Tt(t,i);I(t);const u=I(t);let d=0;3===u&&(d=t.readBits(1));const h=I(t),f=I(t);let m=h,p=f;if(t.readBits(1)){const e=I(t),i=I(t),r=I(t),n=I(t);let s=1,a=1;const o=0===d?u:0;1===o?(s=2,a=2):2===o&&(s=2,a=1),m-=(e+i)*s,p-=(r+n)*a}const g=I(t),k=I(t);I(t);const y=t.readBits(1);let b=0;for(let e=y?0:i;e<=i;e++)I(t),b=I(t),I(t);I(t),I(t),I(t),I(t),I(t),I(t),t.readBits(1)&&t.readBits(1)&&vt(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),I(t),I(t),t.skipBits(1));const T=I(t);if(St(t,T),t.readBits(1)){const e=I(t);for(let i=0;i{try{const t=[],i=[],r=[],n=[];for(const l of tt(e)){const s=e.subarray(l.offset,l.offset+l.length),a=kt(s[0]);a===Ze.VPS_NUT?t.push(s):a===Ze.SPS_NUT?i.push(s):a===Ze.PPS_NUT?r.push(s):a!==Ze.PREFIX_SEI_NUT&&a!==Ze.SUFFIX_SEI_NUT||n.push(s)}if(0===i.length||0===r.length)return null;const s=yt(i[0]);if(!s)return null;let a=0;if(r.length>0){const e=r[0],t=new He(st(e));t.skipBits(16),I(t),I(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),I(t),I(t),C(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&I(t),C(t),C(t),t.skipBits(1),t.skipBits(1),t.skipBits(1),t.skipBits(1);const i=t.readBits(1),n=t.readBits(1);a=i||n?i&&!n?2:!i&&n?3:0:0}const o=[...t.length?[{arrayCompleteness:1,nalUnitType:Ze.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:Ze.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:Ze.PPS_NUT,nalUnits:r}]:[],...n.length?[{arrayCompleteness:1,nalUnitType:kt(n[0][0]),nalUnits:n}]:[]];return{configurationVersion:1,generalProfileSpace:s.generalProfileSpace,generalTierFlag:s.generalTierFlag,generalProfileIdc:s.generalProfileIdc,generalProfileCompatibilityFlags:s.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:s.generalConstraintIndicatorFlags,generalLevelIdc:s.generalLevelIdc,minSpatialSegmentationIdc:s.minSpatialSegmentationIdc,parallelismType:a,chromaFormatIdc:s.chromaFormatIdc,bitDepthLumaMinus8:s.bitDepthLumaMinus8,bitDepthChromaMinus8:s.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:s.spsMaxSubLayersMinus1+1,temporalIdNested:s.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:o}}catch(t){return ze._error("Error building HEVC Decoder Configuration Record:",t),null}},Tt=(e,t)=>{const i=e.readBits(2),r=e.readBits(1),n=e.readBits(5);let s=0;for(let u=0;u<32;u++)s=s<<1|e.readBits(1);const a=new Uint8Array(6);for(let u=0;u<6;u++)a[u]=e.readBits(8);const o=e.readBits(8),l=[],c=[];for(let u=0;u0)for(let u=t;u<8;u++)e.skipBits(2);for(let u=0;u{for(let t=0;t<4;t++)for(let i=0;i<(3===t?2:6);i++){if(e.readBits(1)){const i=Math.min(64,1<<4+(t<<1));t>1&&C(e);for(let t=0;t{const i=[];for(let r=0;r{var n;let s=0,a=0,o=0;if(0!==t&&(a=e.readBits(1)),a){if(t===i){o=t-(I(e)+1)}else o=t-1;e.readBits(1),I(e);const a=null!=(n=r[o])?n:0;for(let t=0;t<=a;t++){e.readBits(1)||e.readBits(1)}s=r[o]}else{const t=I(e),i=I(e);for(let r=0;r{let i=2,r=2,n=2,s=0,a=0,o={num:1,den:1};if(e.readBits(1)){const t=e.readBits(8);if(255===t)o={num:e.readBits(16),den:e.readBits(16)};else{const e=ht[t];e&&(o=e)}}return e.readBits(1)&&e.readBits(1),e.readBits(1)&&(e.readBits(3),s=e.readBits(1),e.readBits(1)&&(i=e.readBits(8),r=e.readBits(8),n=e.readBits(8))),e.readBits(1)&&(I(e),I(e)),e.readBits(1),e.readBits(1),e.readBits(1),e.readBits(1)&&(I(e),I(e),I(e),I(e)),e.readBits(1)&&(e.readBits(32),e.readBits(32),e.readBits(1)&&I(e),e.readBits(1)&&It(e,!0,t)),e.readBits(1)&&(e.readBits(1),e.readBits(1),e.readBits(1),a=I(e),I(e),I(e),I(e),I(e)),{pixelAspectRatio:o,colourPrimaries:i,transferCharacteristics:r,matrixCoefficients:n,fullRangeFlag:s,minSpatialSegmentationIdc:a}},It=(e,t,i)=>{let r=!1,n=!1,s=!1;r=1===e.readBits(1),n=1===e.readBits(1),(r||n)&&(s=1===e.readBits(1),s&&(e.readBits(8),e.readBits(5),e.readBits(1),e.readBits(5)),e.readBits(4),e.readBits(4),s&&e.readBits(4),e.readBits(5),e.readBits(5),e.readBits(5));for(let a=0;a<=i;a++){let t=!0;1===e.readBits(1)||(t=1===e.readBits(1));let i=!1;t?I(e):i=1===e.readBits(1);let a=1;if(!i){a=I(e)+1}r&&xt(e,a,s),n&&xt(e,a,s)}},xt=(e,t,i)=>{for(let r=0;r{const i=new Set;let r=Ct.audAllowed;for(const s of gt(e,t)){if(r===Ct.noMoreDataAllowed){i.add(s.offset);continue}const t=kt(e[s.offset]);if(r===Ct.eoBitstreamAllowed&&37!==t){i.add(s.offset);continue}let n=!1;35===t?r>Ct.audAllowed?n=!0:r=Ct.beforeFirstVcl:t<=31?r>Ct.afterFirstVcl?n=!0:r=Ct.afterFirstVcl:36===t?r!==Ct.afterFirstVcl?n=!0:r=Ct.eoBitstreamAllowed:37===t?r=41&&t<=44||t>=48&&t<=55?r>Ct.beforeFirstVcl?n=!0:r=Ct.beforeFirstVcl:(38===t||40===t||t>=45&&t<=47||t>=56&&t<=63)&&r{if(t.description){const i=3&B(t.description)[21];return lt(e,i+1)}return ot(e)})(n,t)},_t={1:{colourPrimaries:5,transferCharacteristics:6,matrixCoefficients:5},2:{colourPrimaries:1,transferCharacteristics:1,matrixCoefficients:1},3:{colourPrimaries:6,transferCharacteristics:6,matrixCoefficients:6},4:{colourPrimaries:7,transferCharacteristics:7,matrixCoefficients:7},5:{colourPrimaries:9,transferCharacteristics:14,matrixCoefficients:9},7:{colourPrimaries:1,transferCharacteristics:13,matrixCoefficients:0}},Rt=e=>{var t,i,r;const n=new He(e);if(2!==n.readBits(2))return null;const s=n.readBits(1),a=(n.readBits(1)<<1)+s;3===a&&n.skipBits(1);if(1===n.readBits(1))return null;if(0!==n.readBits(1))return null;n.skipBits(2);if(4817730!==n.readBits(24))return null;let o=8;if(a>=2){o=n.readBits(1)?12:10}const l=n.readBits(3);let c=0,u=0;if(7!==l){if(u=n.readBits(1),1===a||3===a){const e=n.readBits(1),t=n.readBits(1);c=e||t?e&&!t?2:1:3,n.skipBits(1)}else c=1}else c=3,u=1;const d=(n.readBits(16)+1)*(n.readBits(16)+1);let h=P(di).level;for(const m of di)if(d<=m.maxPictureSize){h=m.level;break}const f=_t[l];return{profile:a,level:h,bitDepth:o,chromaSubsampling:c,videoFullRangeFlag:u,colourPrimaries:null!=(t=null==f?void 0:f.colourPrimaries)?t:2,transferCharacteristics:null!=(i=null==f?void 0:f.transferCharacteristics)?i:2,matrixCoefficients:null!=(r=null==f?void 0:f.matrixCoefficients)?r:2}},Ft=function*(e){const t=new He(e),i=()=>{let e=0;for(let i=0;i<8;i++){const r=t.readAlignedByte();if(e+=(127&r)*c(2,7*i),!(128&r))break;if(7===i&&128&r)return null}return e>c(2,32)-1?null:e};for(;t.getBitsLeft()>=8;){t.skipBits(1);const r=t.readBits(4),n=t.readBits(1),s=t.readBits(1);let a;if(t.skipBits(1),n&&t.skipBits(8),s){const e=i();if(null===e)return;a=e}else a=Math.floor(t.getBitsLeft()/8);S(t.pos%8===0),yield{type:r,data:e.subarray(t.pos/8,t.pos/8+a)},t.skipBits(8*a)}},At=e=>{for(const{type:t,data:i}of Ft(e)){if(1!==t)continue;const e=new He(i),r=e.readBits(3);e.readBits(1);const n=e.readBits(1);let s=0,a=0,o=0;if(n)s=e.readBits(5);else{let t=0;if(e.readBits(1)){e.skipBits(32),e.skipBits(32);if(e.readBits(1)){let t=0;for(;t<32&&!e.readBits(1);)t++;t<32&&e.skipBits(t)}t=e.readBits(1),t&&(o=e.readBits(5),e.skipBits(32),e.skipBits(5),e.skipBits(5))}const i=e.readBits(1),r=e.readBits(5);for(let n=0;n<=r;n++){e.skipBits(12);const r=e.readBits(5);if(0===n&&(s=r),r>7){const t=e.readBits(1);0===n&&(a=t)}if(t){if(e.readBits(1)){const t=o+1;e.skipBits(t),e.skipBits(t),e.skipBits(1)}}if(i){e.readBits(1)&&e.skipBits(4)}}}const l=e.readBits(4),c=e.readBits(4),u=l+1;e.skipBits(u);const d=c+1;e.skipBits(d);let h=0;if(h=n?0:e.readBits(1),h&&(e.skipBits(4),e.skipBits(3)),e.skipBits(1),e.skipBits(1),e.skipBits(1),!n){e.skipBits(1),e.skipBits(1),e.skipBits(1),e.skipBits(1);const t=e.readBits(1);t&&(e.skipBits(1),e.skipBits(1));let i=0;if(i=e.readBits(1)?2:e.readBits(1),i>0){e.readBits(1)||e.skipBits(1)}t&&e.skipBits(3)}e.skipBits(1),e.skipBits(1),e.skipBits(1);const f=e.readBits(1);let m=8;if(2===r&&f){m=e.readBits(1)?12:10}else r<=2&&(m=f?10:8);let p=0;1!==r&&(p=e.readBits(1));let g=2,k=2,y=2;e.readBits(1)&&(g=e.readBits(8),k=e.readBits(8),y=e.readBits(8));let b=0,T=1,v=1,S=0;return p?b=e.readBits(1):1===g&&13===k&&0===y?(b=1,T=0,v=0):(b=e.readBits(1),0===r?(T=1,v=1):1===r?(T=0,v=0):12===m?(T=e.readBits(1),v=T?e.readBits(1):0):(T=1,v=0),T&&v&&(S=e.readBits(2))),{profile:r,level:s,tier:a,bitDepth:m,monochrome:p,chromaSubsamplingX:T,chromaSubsamplingY:v,chromaSamplePosition:S,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},Dt=e=>{if(e.length<36)return null;const t=E(e);if(1768124518!==t.getUint32(4))return null;return t.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:t.getUint8(22),transferCharacteristics:t.getUint8(23),matrixCoefficients:t.getUint8(24)}},Mt=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],Nt=e=>{if(e.length<7)throw new Error("Setup header is too short.");if(5!==e[0])throw new Error("Wrong packet type in Setup header.");if("vorbis"!==String.fromCharCode(...e.slice(1,7)))throw new Error("Invalid packet signature in Setup header.");const t=e.length,i=new Uint8Array(t);for(let u=0;u97;)if(1===r.readBits(1)){n=r.pos;break}if(0===n)throw new Error("Invalid Setup header: framing bit not found.");let s=0,a=!1,o=0;for(;r.getBitsLeft()>=97;){const e=r.pos,t=r.readBits(8),i=r.readBits(16),n=r.readBits(16);if(t>63||0!==i||0!==n){r.pos=e;break}if(r.skipBits(1),s++,s>64)break;r.clone().readBits(6)+1===s&&(a=!0,o=s)}if(!a)throw new Error("Invalid Setup header: mode header not found.");if(o>63)throw new Error(`Unsupported mode count: ${o}.`);const l=o;r.pos=0,r.skipBits(n);const c=Array(l).fill(0);for(let u=l-1;u>=0;u--)r.skipBits(40),c[u]=r.readBits(1);return{modeBlockflags:c}},Ot=(e,t,i)=>{switch(e){case"avc":for(const e of rt(i,t)){const t=i[e.offset],r=nt(t);if(r>=Ye.NON_IDR_SLICE&&r<=Ye.SLICE_DPC)return"delta";if(r===Ye.IDR)return"key";if(r===Ye.SEI&&!ve()){const t=i.subarray(e.offset,e.offset+e.length),r=st(t);let n=1;do{let e=0;for(;;){const t=r[n++];if(void 0===t)break;if(e+=t,t<255)break}let t=0;for(;;){const e=r[n++];if(void 0===e)break;if(t+=e,e<255)break}if(e===6){const e=new He(r);e.pos=8*n;const t=I(e),i=e.readBits(1);if(0===t&&1===i)return"key"}n+=t}while(n{var i,r;const n=E(e);let s=0;const a=n.getUint32(s,!0);s+=4;const o=_.decode(e.subarray(s,s+a));s+=a,a>0&&(null!=t.raw||(t.raw={}),null!=(i=t.raw).vendor||(i.vendor=o));const l=n.getUint32(s,!0);s+=4;for(let c=0;c0&&(null!=t.trackNumber||(t.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=t.tracksTotal||(t.tracksTotal=r))}break;case"TRACKTOTAL":{const e=Number.parseInt(c,10);Number.isInteger(e)&&e>0&&(null!=t.tracksTotal||(t.tracksTotal=e))}break;case"DISCNUMBER":{const e=c.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=t.discNumber||(t.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=t.discsTotal||(t.discsTotal=r))}break;case"DISCTOTAL":{const e=Number.parseInt(c,10);Number.isInteger(e)&&e>0&&(null!=t.discsTotal||(t.discsTotal=e))}break;case"DATE":{const e=new Date(c);Number.isNaN(e.getTime())||null!=t.date||(t.date=e)}break;case"GENRE":null!=t.genre||(t.genre=c);break;case"METADATA_BLOCK_PICTURE":{const e=Ce(c),i=E(e),r=i.getUint32(0,!1),n=i.getUint32(4,!1),s=String.fromCharCode(...e.subarray(8,8+n)),a=i.getUint32(8+n,!1),o=_.decode(e.subarray(12+n,12+n+a)),l=i.getUint32(n+a+28),u=e.subarray(n+a+32,n+a+32+l);null!=t.images||(t.images=[]),t.images.push({data:u,mimeType:s,kind:3===r?"coverFront":4===r?"coverBack":"unknown",name:void 0,description:o||void 0})}}}},qt=[2,1,2,3,3,4,4,5],Wt=e=>{if(e.length<7)return null;if(11!==e[0]||119!==e[1])return null;const t=new He(e);t.skipBits(16),t.skipBits(16);const i=t.readBits(2);if(3===i)return null;const r=t.readBits(6),n=t.readBits(5);if(n>8)return null;const s=t.readBits(3),a=t.readBits(3);0!==(1&a)&&1!==a&&t.skipBits(2),0!==(4&a)&&t.skipBits(2),2===a&&t.skipBits(2);return{fscod:i,bsid:n,bsmod:s,acmod:a,lfeon:t.readBits(1),bitRateCode:Math.floor(r/2)}},Ht=[128,138,192,128,140,192,160,174,240,160,176,240,192,208,288,192,210,288,224,242,336,224,244,336,256,278,384,256,280,384,320,348,480,320,350,480,384,416,576,384,418,576,448,486,672,448,488,672,512,556,768,512,558,768,640,696,960,640,698,960,768,834,1152,768,836,1152,896,974,1344,896,976,1344,1024,1114,1536,1024,1116,1536,1280,1392,1920,1280,1394,1920,1536,1670,2304,1536,1672,2304,1792,1950,2688,1792,1952,2688,2048,2228,3072,2048,2230,3072,2304,2506,3456,2304,2508,3456,2560,2786,3840,2560,2788,3840],Vt=[1,2,3,6],jt=e=>{if(e.length<6)return null;if(11!==e[0]||119!==e[1])return null;const t=new He(e);t.skipBits(16);const i=t.readBits(2);if(t.skipBits(3),0!==i&&2!==i)return null;const r=t.readBits(11),n=t.readBits(2);let s,a=0;3===n?(a=t.readBits(2),s=3):s=t.readBits(2);const o=t.readBits(3),l=t.readBits(1),c=t.readBits(5);if(c<11||c>16)return null;const u=Vt[s];let d;d=n<3?Ge[n]/1e3:Qe[a]/1e3;return{dataRate:Math.round((r+1)*d/(16*u)),substreams:[{fscod:n,fscod2:a,bsid:c,bsmod:0,acmod:o,lfeon:l,numDepSub:0,chanLoc:0}]}},Kt=e=>{const t=e.substreams[0];return S(t),t.fscod<3?Ge[t.fscod]:null!==t.fscod2&&t.fscod2<3?Qe[t.fscod2]:null},Xt=e=>{const t=e.substreams[0];S(t);let i=qt[t.acmod]+t.lfeon;if(t.numDepSub>0){const e=[2,2,1,1,2,2,2,1,1];for(let r=0;r<9;r++)t.chanLoc&1<<8-r&&(i+=e[r])}return i},$t=[0,8e3,16e3,32e3,0,0,11025,22050,44100,0,0,12e3,24e3,48e3,96e3,192e3],Gt=[32e3,56e3,64e3,96e3,112e3,128e3,192e3,224e3,256e3,32e4,384e3,448e3,512e3,576e3,64e4,768e3,96e4,1024e3,1152e3,128e4,1344e3,1408e3,1411200,1472e3,1536e3,192e4,2048e3,3072e3,384e4,0,0,0],Qt=[16,16,20,20,0,24,24,0],Yt=[1,2,2,2,2,3,3,4,4,5,6,6,6,7,8,8],Jt=[1,2,2,2,2,3,18,19,6,7,518,323,83,519,582,535],Zt=[32e3,44100,48e3,0],ei=[8e3,16e3,32e3,64e3,128e3,22050,44100,88200,176400,352800,12e3,24e3,48e3,96e3,192e3,384e3],ti=[512,1024,2048,4096],ii=e=>{const t=ni(e),i=E(e);let r=t?4*Math.ceil(t.frameSize/4):0,n=null;for(;r+4<=e.length&&1683496997===i.getUint32(r);){const t=si(e.subarray(r));if(!t)break;null!=n||(n=t),r+=t.frameSize}if(t)return{frameSize:n?r:t.frameSize,sampleRate:t.sampleRate,numberOfChannels:t.numberOfChannels,sampleCount:t.sampleCount,channelLayout:t.channelLayout,pcmResolution:t.pcmResolution,bitRate:t.bitRate,core:t,hasExtensions:null!==n};if(!(null==n?void 0:n.asset))return null;const{asset:s}=n;return{frameSize:r,sampleRate:s.sampleRate,numberOfChannels:s.numberOfChannels,sampleCount:s.sampleCount,channelLayout:s.channelLayout,pcmResolution:s.pcmResolution,bitRate:0,core:null,hasExtensions:!0}},ri=e=>{const t=ii(e);return(null==t?void 0:t.core)?t.hasExtensions?"dtsh":"dtsc":null},ni=e=>{if(e.length<18)return null;if(127!==e[0]||254!==e[1]||128!==e[2]||1!==e[3])return null;const t=new He(e);if(t.skipBits(32),t.skipBits(1),31!==t.readBits(5))return null;const i=t.readBits(1),r=t.readBits(7)+1;if(r%8!==0)return null;const n=t.readBits(14)+1;if(n<96)return null;const s=t.readBits(6);if(s>=Yt.length)return null;const a=$t[t.readBits(4)];if(0===a)return null;const o=Gt[t.readBits(5)];if(0!==t.readBits(1))return null;t.skipBits(4),t.skipBits(5);const l=t.readBits(2);if(3===l)return null;t.skipBits(1),i&&t.skipBits(16),t.skipBits(7);const c=Qt[t.readBits(3)];if(0===c)return null;const u=0!==l;return{frameSize:n,sampleRate:a,numberOfChannels:Yt[s]+(u?1:0),sampleCount:32*r,channelLayout:Jt[s]|(u?8:0),amode:s,lfePresent:u,bitRate:o,pcmResolution:c}},si=e=>{if(e.length<10)return null;if(100!==e[0]||88!==e[1]||32!==e[2]||37!==e[3])return null;const t=new He(e);t.skipBits(32),t.skipBits(8);const i=t.readBits(2),r=t.readBits(1),n=8+4*r,s=16+4*r;t.skipBits(n);const a=t.readBits(s)+1,o={frameSize:a,asset:null};if(!t.readBits(1))return o;const l=Zt[t.readBits(2)],c=512*(t.readBits(3)+1);t.readBits(1)&&t.skipBits(36);const u=t.readBits(3)+1,d=t.readBits(3)+1,h=[];for(let k=0;k2&&t.skipBits(1),p>6&&t.skipBits(1),t.readBits(1))){const e=t.readBits(2)+1<<2;g=t.readBits(e)}return 0===l||t.getBitsLeft()<0?o:{frameSize:a,asset:{sampleRate:m,numberOfChannels:p,sampleCount:Math.round(c*m/l),channelLayout:g,pcmResolution:f}}},ai=e=>le(e)+le(44646&e),oi=["avc","hevc","vp9","av1","vp8","prores"],li=["pcm-s16","pcm-s16be","pcm-s24","pcm-s24be","pcm-s32","pcm-s32be","pcm-f32","pcm-f32be","pcm-f64","pcm-f64be","pcm-u8","pcm-s8","ulaw","alaw"],ci=["aac","opus","mp3","vorbis","flac","ac3","eac3","dts",...li],ui=[{maxMacroblocks:99,maxBitrate:64e3,maxDpbMbs:396,level:10},{maxMacroblocks:396,maxBitrate:192e3,maxDpbMbs:900,level:11},{maxMacroblocks:396,maxBitrate:384e3,maxDpbMbs:2376,level:12},{maxMacroblocks:396,maxBitrate:768e3,maxDpbMbs:2376,level:13},{maxMacroblocks:396,maxBitrate:2e6,maxDpbMbs:2376,level:20},{maxMacroblocks:792,maxBitrate:4e6,maxDpbMbs:4752,level:21},{maxMacroblocks:1620,maxBitrate:4e6,maxDpbMbs:8100,level:22},{maxMacroblocks:1620,maxBitrate:1e7,maxDpbMbs:8100,level:30},{maxMacroblocks:3600,maxBitrate:14e6,maxDpbMbs:18e3,level:31},{maxMacroblocks:5120,maxBitrate:2e7,maxDpbMbs:20480,level:32},{maxMacroblocks:8192,maxBitrate:2e7,maxDpbMbs:32768,level:40},{maxMacroblocks:8192,maxBitrate:5e7,maxDpbMbs:32768,level:41},{maxMacroblocks:8704,maxBitrate:5e7,maxDpbMbs:34816,level:42},{maxMacroblocks:22080,maxBitrate:135e6,maxDpbMbs:110400,level:50},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:51},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:52},{maxMacroblocks:139264,maxBitrate:24e7,maxDpbMbs:696320,level:60},{maxMacroblocks:139264,maxBitrate:48e7,maxDpbMbs:696320,level:61},{maxMacroblocks:139264,maxBitrate:8e8,maxDpbMbs:696320,level:62}],di=[{maxPictureSize:36864,maxBitrate:2e5,level:10},{maxPictureSize:73728,maxBitrate:8e5,level:11},{maxPictureSize:122880,maxBitrate:18e5,level:20},{maxPictureSize:245760,maxBitrate:36e5,level:21},{maxPictureSize:552960,maxBitrate:72e5,level:30},{maxPictureSize:983040,maxBitrate:12e6,level:31},{maxPictureSize:2228224,maxBitrate:18e6,level:40},{maxPictureSize:2228224,maxBitrate:3e7,level:41},{maxPictureSize:8912896,maxBitrate:6e7,level:50},{maxPictureSize:8912896,maxBitrate:12e7,level:51},{maxPictureSize:8912896,maxBitrate:18e7,level:52},{maxPictureSize:35651584,maxBitrate:18e7,level:60},{maxPictureSize:35651584,maxBitrate:24e7,level:61},{maxPictureSize:35651584,maxBitrate:48e7,level:62}],hi=".01.01.01.01.00",fi=".0.110.01.01.01.0",mi=["ap4x","ap4h","apch","apcn","apcs","apco"],pi=["dtsc","dtsh","dtsl","dtse"],gi=e=>{const{codec:t,codecDescription:i,colorSpace:r,avcCodecInfo:n,hevcCodecInfo:s,vp9CodecInfo:a,av1CodecInfo:o,proresFormat:l}=e;if("avc"===t){if(S(null!==e.avcType),n){const t=new Uint8Array([n.avcProfileIndication,n.profileCompatibility,n.avcLevelIndication]);return`avc${e.avcType}.${H(t)}`}if(!i||i.byteLength<4)throw new TypeError("AVC decoder description is not provided or is not at least 4 bytes long.");return`avc${e.avcType}.${H(i.subarray(1,4))}`}if("hevc"===t){let e,t,r,n,a,o;if(s)e=s.generalProfileSpace,t=s.generalProfileIdc,r=V(s.generalProfileCompatibilityFlags),n=s.generalTierFlag,a=s.generalLevelIdc,o=[...s.generalConstraintIndicatorFlags];else{if(!i||i.byteLength<23)throw new TypeError("HEVC decoder description is not provided or is not at least 23 bytes long.");const s=E(i),l=s.getUint8(1);e=l>>6&3,t=31&l,r=V(s.getUint32(2)),n=l>>5&1,a=s.getUint8(12),o=[];for(let e=0;e<6;e++)o.push(s.getUint8(6+e))}let l="hev1.";for(l+=["","A","B","C"][e]+t,l+=".",l+=r.toString(16).toUpperCase(),l+=".",l+=0===n?"L":"H",l+=a;o.length>0&&0===o[o.length-1];)o.pop();return o.length>0&&(l+=".",l+=o.map(e=>e.toString(16).toUpperCase()).join(".")),l}if("vp8"===t)return"vp8";if("vp9"===t){if(!a){const t=e.width*e.height;let i=P(di).level;for(const e of di)if(t<=e.maxPictureSize){i=e.level;break}return`vp09.00.${i.toString().padStart(2,"0")}.08`}let t=`vp09.${a.profile.toString().padStart(2,"0")}.${a.level.toString().padStart(2,"0")}.${a.bitDepth.toString().padStart(2,"0")}.${a.chromaSubsampling.toString().padStart(2,"0")}`;return t+=`.${a.colourPrimaries.toString().padStart(2,"0")}.${a.transferCharacteristics.toString().padStart(2,"0")}.${a.matrixCoefficients.toString().padStart(2,"0")}.${a.videoFullRangeFlag.toString().padStart(2,"0")}`,t.endsWith(hi)&&(t=t.slice(0,-15)),t}if("av1"===t){if(!o){const t=e.width*e.height;let i=P(di).level;for(const e of di)if(t<=e.maxPictureSize){i=e.level;break}return`av01.0.${i.toString().padStart(2,"0")}M.08`}const t=o.profile,i=o.level.toString().padStart(2,"0"),n=o.tier?"H":"M",s=o.bitDepth.toString().padStart(2,"0"),a=o.monochrome?"1":"0",l=100*o.chromaSubsamplingX+10*o.chromaSubsamplingY+1*(o.chromaSubsamplingX&&o.chromaSubsamplingY?o.chromaSamplePosition:0),c=(null==r?void 0:r.primaries)?F[r.primaries]:1,u=(null==r?void 0:r.transfer)?D[r.transfer]:1,d=(null==r?void 0:r.matrix)?N[r.matrix]:1,h=(null==r?void 0:r.fullRange)?1:0;let f=`av01.${t}.${i}${n}.${s}`;return f+=`.${a}.${l.toString().padStart(3,"0")}`,f+=`.${c.toString().padStart(2,"0")}`,f+=`.${u.toString().padStart(2,"0")}`,f+=`.${d.toString().padStart(2,"0")}`,f+=`.${h}`,f.endsWith(fi)&&(f=f.slice(0,-17)),f}if("prores"===t)return null!=l?l:"apch";throw null!==t&&J(t),new TypeError(`Unhandled codec '${t}'.`)},ki=e=>{var t,i,r,n,s,a;switch(e.codec){case"avc":{let r=null==(t=e.avcCodecInfo)?void 0:t.sequenceParameterSets[0];if(!r&&e.codecDescription&&(r=null==(i=dt(e.codecDescription))?void 0:i.sequenceParameterSets[0]),r){const e=ft(r);if(e)return{primaries:A[e.colourPrimaries],transfer:M[e.transferCharacteristics],matrix:O[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"hevc":{let t=null==(n=null==(r=e.hevcCodecInfo)?void 0:r.arrays.find(e=>e.nalUnitType===Ze.SPS_NUT))?void 0:n.nalUnits[0];if(!t&&e.codecDescription&&(t=null==(a=null==(s=(e=>{try{const t=E(e);let i=0;const r=t.getUint8(i++),n=t.getUint8(i++),s=n>>6&3,a=n>>5&1,o=31&n,l=t.getUint32(i,!1);i+=4;const c=e.subarray(i,i+6);i+=6;const u=t.getUint8(i++),d=(15&t.getUint8(i++))<<8|t.getUint8(i++),h=3&t.getUint8(i++),f=3&t.getUint8(i++),m=7&t.getUint8(i++),p=7&t.getUint8(i++),g=t.getUint16(i,!1);i+=2;const k=t.getUint8(i++),y=k>>6&3,b=k>>3&7,T=k>>2&1,v=3&k,S=t.getUint8(i++),w=[];for(let P=0;P>7&1,s=63&r,a=t.getUint16(i,!1);i+=2;const o=[];for(let l=0;le.nalUnitType===Ze.SPS_NUT))?void 0:a.nalUnits[0]),t){const e=yt(t);if(e)return{primaries:A[e.colourPrimaries],transfer:M[e.transferCharacteristics],matrix:O[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"vp8":break;case"vp9":if(e.vp9CodecInfo)return{primaries:A[e.vp9CodecInfo.colourPrimaries],transfer:M[e.vp9CodecInfo.transferCharacteristics],matrix:O[e.vp9CodecInfo.matrixCoefficients],fullRange:!!e.vp9CodecInfo.videoFullRangeFlag};break;case"av1":if(e.av1CodecInfo)return{primaries:A[e.av1CodecInfo.colourPrimaries],transfer:M[e.av1CodecInfo.transferCharacteristics],matrix:O[e.av1CodecInfo.matrixCoefficients],fullRange:!!e.av1CodecInfo.videoFullRangeFlag};break;case"prores":if(e.proresCodecInfo)return{primaries:A[e.proresCodecInfo.colourPrimaries],transfer:M[e.proresCodecInfo.transferCharacteristics],matrix:O[e.proresCodecInfo.matrixCoefficients],fullRange:e.proresCodecInfo.fullRange}}return{primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0}},yi=e=>{const{codec:t,codecDescription:i,aacCodecInfo:r,dtsFormat:n}=e;if("aac"===t){if(!r)throw new TypeError("AAC codec info must be provided.");if(r.isMpeg2)return"mp4a.67";{let e;if(null!==r.objectType)e=r.objectType;else{e=Ke(i).objectType}return`mp4a.40.${e}`}}if("mp3"===t)return"mp3";if("opus"===t)return"opus";if("vorbis"===t)return"vorbis";if("flac"===t)return"flac";if("ac3"===t)return"ac-3";if("eac3"===t)return"ec-3";if("dts"===t)return null!=n?n:"dtsc";if(t&&li.includes(t))return t;throw new TypeError(`Unhandled codec '${t}'.`)},bi=48e3,Ti=/^pcm-([usf])(\d+)(be)?$/,vi=e=>{if(S(li.includes(e)),"ulaw"===e)return{dataType:"ulaw",sampleSize:1,littleEndian:!0,silentValue:255};if("alaw"===e)return{dataType:"alaw",sampleSize:1,littleEndian:!0,silentValue:213};const t=Ti.exec(e);let i;S(t),i="u"===t[1]?"unsigned":"s"===t[1]?"signed":"float";return{dataType:i,sampleSize:Number(t[2])/8,littleEndian:"be"!==t[3],silentValue:"pcm-u8"===e?c(2,7):0}},Si=e=>e.startsWith("avc1")||e.startsWith("avc3")?"avc":e.startsWith("hev1")||e.startsWith("hvc1")?"hevc":"vp8"===e?"vp8":e.startsWith("vp09")?"vp9":e.startsWith("av01")?"av1":mi.includes(e)?"prores":"mp3"===e||"mp4a.69"===e||"mp4a.6B"===e||"mp4a.6b"===e||"mp4a.40.34"===e?"mp3":e.startsWith("mp4a.40.")||"mp4a.67"===e?"aac":"opus"===e?"opus":"vorbis"===e?"vorbis":"flac"===e?"flac":"ac-3"===e||"ac3"===e?"ac3":"ec-3"===e||"eac3"===e?"eac3":pi.includes(e)?"dts":"ulaw"===e?"ulaw":"alaw"===e?"alaw":Ti.test(e)?e:"webvtt"===e?"webvtt":null,wi=[44100,48e3,32e3],Pi=[-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],Ii=1483304551,xi=1231971951,Ci=(e,t)=>3===e?3===t?21:36:3===t?13:21,Bi=(e,t)=>{const i=e>>>24,r=e>>>16&255,n=e>>>8&255,s=255&e;if(255!==i&&255!==r&&255!==n&&255!==s)return{header:null,bytesAdvanced:4};if(255!==i)return{header:null,bytesAdvanced:1};if(224!==(224&r))return{header:null,bytesAdvanced:1};let a=0,o=0;16&r?a=8&r?0:1:(a=1,o=1);const l=r>>3&3,c=r>>1&3,u=(n>>2&3)%3,d=s>>6&3,h=s>>4&3,f=s>>3&1,m=s>>2&1,p=3&s,g=Pi[16*a*4+16*c+(n>>4&15)];if(-1===g)return{header:null,bytesAdvanced:1};const k=1e3*g,y=wi[u]>>a+o,b=((e,t,i,r,n)=>0===t?0:1===t?Math.floor(144*i/(r<>1&1);if(null!==t&&t{let t=2130706432,i=0;for(;0!==t;)i>>=1,i|=e&t,t>>=8;return i};var _i,Ri;(Ri=_i||(_i={}))[Ri.FrameCount=1]="FrameCount",Ri[Ri.FileSize=2]="FileSize",Ri[Ri.Toc=4]="Toc";const Fi=e=>3===e?1:2;class Ai{constructor(e){this.input=e}dispose(){}}const Di=new Uint8Array(0);class Mi{constructor(e,t,i,r,n=-1,s,a){if(this.data=e,this.type=t,this.timestamp=i,this.duration=r,this.sequenceNumber=n,e===Di&&void 0===s)throw new Error("Internal error: byteLength must be explicitly provided when constructing metadata-only packets.");if(void 0===s&&(s=e.byteLength),!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("key"!==t&&"delta"!==t)throw new TypeError('type must be either "key" or "delta".');if(!Number.isFinite(i))throw new TypeError("timestamp must be a number.");if(!Number.isFinite(r)||r<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(n))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(s)||s<0)throw new TypeError("byteLength must be a non-negative integer.");if(void 0!==a&&("object"!==typeof a||!a))throw new TypeError("sideData, when provided, must be an object.");if(void 0!==(null==a?void 0:a.alpha)&&!(a.alpha instanceof Uint8Array))throw new TypeError("sideData.alpha, when provided, must be a Uint8Array.");if(void 0!==(null==a?void 0:a.alphaByteLength)&&(!Number.isInteger(a.alphaByteLength)||a.alphaByteLength<0))throw new TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=s,this.sideData=null!=a?a:{},this.sideData.alpha&&void 0===this.sideData.alphaByteLength&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}get isMetadataOnly(){return this.data===Di}get microsecondTimestamp(){return Math.trunc(de*this.timestamp)}get microsecondDuration(){return Math.trunc(de*this.duration)}toEncodedVideoChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}alphaToEncodedVideoChunk(e=this.type){if(!this.sideData.alpha)throw new TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.sideData.alpha,type:e,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}toEncodedAudioChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to an audio chunk.");if("undefined"===typeof EncodedAudioChunk)throw new Error("EncodedAudioChunk is not available in this environment.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}static fromEncodedChunk(e,t){var i;if(!(e instanceof EncodedVideoChunk||e instanceof EncodedAudioChunk))throw new TypeError("chunk must be an EncodedVideoChunk or EncodedAudioChunk.");const r=new Uint8Array(e.byteLength);return e.copyTo(r),new Mi(r,e.type,e.timestamp/1e6,(null!=(i=e.duration)?i:0)/1e6,void 0,void 0,t)}clone(e){var t,i,r,n,s,a;if(void 0!==e&&("object"!==typeof e||null===e))throw new TypeError("options, when provided, must be an object.");if(void 0!==(null==e?void 0:e.data)&&!(e.data instanceof Uint8Array))throw new TypeError("options.data, when provided, must be a Uint8Array.");if(void 0!==(null==e?void 0:e.type)&&"key"!==e.type&&"delta"!==e.type)throw new TypeError('options.type, when provided, must be either "key" or "delta".');if(void 0!==(null==e?void 0:e.timestamp)&&!Number.isFinite(e.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(void 0!==(null==e?void 0:e.duration)&&!Number.isFinite(e.duration))throw new TypeError("options.duration, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sequenceNumber)&&!Number.isFinite(e.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sideData)&&("object"!==typeof e.sideData||null===e.sideData))throw new TypeError("options.sideData, when provided, must be an object.");return new Mi(null!=(t=null==e?void 0:e.data)?t:this.data,null!=(i=null==e?void 0:e.type)?i:this.type,null!=(r=null==e?void 0:e.timestamp)?r:this.timestamp,null!=(n=null==e?void 0:e.duration)?n:this.duration,null!=(s=null==e?void 0:e.sequenceNumber)?s:this.sequenceNumber,this.byteLength,null!=(a=null==e?void 0:e.sideData)?a:this.sideData)}}const Ni=e=>{const t=E(e);let i=0;const r=t.getUint8(i);i+=1,i+=3;const n=H(e.subarray(i,i+16));i+=16;let s=null;if(r>0){const r=t.getUint32(i);if(i+=4,r>0){s=[];for(let t=0;te.systemId===t.systemId&&((e,t)=>{if(e.length!==t.length)return!1;for(let i=0;i{let t=Wo(e);const i=Yo(e,4);let r=8;1===t&&(t=Ko(e),r=16);const n=t-r;return n<0?null:{name:i,totalSize:t,headerSize:r,contentSize:n}},zi=e=>Vo(e)/65536,Ui=e=>Vo(e)/1073741824,qi=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=No(e);if(t|=127&i,0===(128&i))break}return t},Wi=e=>{let t=Lo(e);return e.skip(2),t=Math.min(t,e.remainingLength),_.decode(Mo(e,t))},Hi=e=>{const t=Li(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=Wo(e);e.skip(4);const r=Mo(e,t.contentSize-8);switch(i){case 1:return _.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new Ue(r,"image/jpeg");case 14:return new Ue(r,"image/png");case 27:return new Ue(r,"image/bmp");default:return r}},Vi=16,ji=new Uint32Array(256),Ki=new Uint32Array(256),Xi=new Uint32Array(256),$i=new Uint32Array(256),Gi=new Uint32Array(256),Qi=new Uint32Array(256),Yi=new Uint32Array(10);let Ji=!1;class Zi{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(Vi/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(Vi),this.out=new Uint8Array(Vi),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){S(16===e.byteLength),S(16===t.byteLength),Ji||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,a=1;s<256;s++)i[s]=a,t[a]=s,a=a^a<<1^(128&a?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let n=r^r<<1^r<<2^r<<3^r<<4;n=n>>>8^255&n^99,e[s]=n}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);ji[s]=t<<24|t<<16|t<<8|t,Qi[s]=i<<24|i<<16|i<<8|i;const n=r(i,14)<<24|r(i,9)<<16|r(i,13)<<8|r(i,11);Ki[s]=n,Xi[s]=n>>>8|n<<24,$i[s]=n>>>16|n<<16,Gi[s]=n>>>24|n<<8}let n=1;for(let s=0;s<10;s++)Yi[s]=n<<24,n=n<<1^(128&n?283:0);Ji=!0})();const i=new DataView(e.buffer,e.byteOffset,e.byteLength),r=new DataView(t.buffer,t.byteOffset,t.byteLength);this.roundkey[0]=i.getUint32(0,!1),this.roundkey[1]=i.getUint32(4,!1),this.roundkey[2]=i.getUint32(8,!1),this.roundkey[3]=i.getUint32(12,!1),this.iv[0]=r.getUint32(0,!1),this.iv[1]=r.getUint32(4,!1),this.iv[2]=r.getUint32(8,!1),this.iv[3]=r.getUint32(12,!1);for(let n=4;n<44;n+=4){const e=this.roundkey[n-1];this.roundkey[n]=this.roundkey[n-4]^4278190080&ji[e>>>16&255]^16711680&ji[e>>>8&255]^65280&ji[e>>>0&255]^255&ji[e>>>24&255]^Yi[n/4-1],this.roundkey[n+1]=this.roundkey[n-3]^this.roundkey[n],this.roundkey[n+2]=this.roundkey[n-2]^this.roundkey[n+1],this.roundkey[n+3]=this.roundkey[n-1]^this.roundkey[n+2]}for(let n=0,s=40;n>>24&255]]^Xi[255&ji[t>>>16&255]]^$i[255&ji[t>>>8&255]]^Gi[255&ji[t>>>0&255]]}}decrypt(){let e=this.inView.getUint32(0,!1)^this.roundkey[0],t=this.inView.getUint32(4,!1)^this.roundkey[1],i=this.inView.getUint32(8,!1)^this.roundkey[2],r=this.inView.getUint32(12,!1)^this.roundkey[3];const n=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),a=this.inView.getUint32(8,!1),o=this.inView.getUint32(12,!1);let l,c,u,d;for(let g=1;g<10;g++){const n=4*g;l=Ki[e>>>24]^Xi[r>>>16&255]^$i[i>>>8&255]^Gi[255&t]^this.roundkey[n],c=Ki[t>>>24]^Xi[e>>>16&255]^$i[r>>>8&255]^Gi[255&i]^this.roundkey[n+1],u=Ki[i>>>24]^Xi[t>>>16&255]^$i[e>>>8&255]^Gi[255&r]^this.roundkey[n+2],d=Ki[r>>>24]^Xi[i>>>16&255]^$i[t>>>8&255]^Gi[255&e]^this.roundkey[n+3],e=l,t=c,i=u,r=d}const h=4278190080&Qi[e>>>24&255]^16711680&Qi[r>>>16&255]^65280&Qi[i>>>8&255]^255&Qi[t>>>0&255]^this.roundkey[40],f=4278190080&Qi[t>>>24&255]^16711680&Qi[e>>>16&255]^65280&Qi[r>>>8&255]^255&Qi[i>>>0&255]^this.roundkey[41],m=4278190080&Qi[i>>>24&255]^16711680&Qi[t>>>16&255]^65280&Qi[e>>>8&255]^255&Qi[r>>>0&255]^this.roundkey[42],p=4278190080&Qi[r>>>24&255]^16711680&Qi[i>>>16&255]^65280&Qi[t>>>8&255]^255&Qi[e>>>0&255]^this.roundkey[43];this.outView.setUint32(0,h^this.iv[0],!1),this.outView.setUint32(4,f^this.iv[1],!1),this.outView.setUint32(8,m^this.iv[2],!1),this.outView.setUint32(12,p^this.iv[3],!1),this.iv[0]=n,this.iv[1]=s,this.iv[2]=a,this.iv[3]=o}}class er extends Ai{constructor(e){super(e),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=e._reader}getTrackBackings(){return p(this,null,function*(){return yield this.readMetadata(),this.tracks.map(e=>e.trackBacking)})}getMimeType(){return p(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isQuickTime?"quicktime":"mp4");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)}),hasAudio:this.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)}),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return p(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>p(this,null,function*(){let e=0,t=!1,i=!1;for(;;){let r=this.reader.requestSliceRange(e,8,16);if(Pe(r)&&(r=yield r),!r)break;const n=e,s=Li(r);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=Yo(r,4);this.isQuickTime="qt "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(r.filePos,s.contentSize);if(Pe(e)&&(e=yield e),!e)break;this.moovSlice=e,this.readContiguousBoxes(this.moovSlice);for(const t of this.tracks){const e=t.editListPreviousSegmentDurations/this.movieTimescale;t.editListOffset-=Math.round(e*t.timescale)}t=this.isFragmented&&null!==this.reader.fileSize&&this.reader.fileSize>n+s.totalSize,i=!0;break}if("moof"===s.name){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');yield this.copyMetadataFromInitInput(this.input._initInput),t=!1,i=!0;break}}e=n+s.totalSize}if(!i&&this.input._initInput&&(yield this.copyMetadataFromInitInput(this.input._initInput)),t){S(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);Pe(e)&&(e=yield e),S(e);const t=Wo(e),i=this.reader.fileSize-t;if(i>=0&&i<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(i,8,16);if(Pe(e)&&(e=yield e),e){const t=Li(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);Pe(i)&&(i=yield i),i&&this.readContiguousBoxes(i)}}}}}))()}copyMetadataFromInitInput(e){return p(this,null,function*(){const t=yield e._getDemuxer();if(t.constructor!==er)throw new Error("Init input must match the input's format.");yield t.readMetadata(),this.movieTimescale=t.movieTimescale,this.movieDurationInTimescale=t.movieDurationInTimescale,this.metadataTags=t.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=t.fragmentTrackDefaults,this.psshBoxes=t.psshBoxes;for(const e of t.tracks){const t={id:e.id,demuxer:this,trackBacking:null,disposition:e.disposition,timescale:e.timescale,durationInMediaTimescale:e.durationInMediaTimescale,durationInMovieTimescale:e.durationInMovieTimescale,rotation:e.rotation,internalCodecId:e.internalCodecId,name:e.name,languageCode:e.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:e.editListPreviousSegmentDurations,editListOffset:e.editListOffset,encryptionInfo:e.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:e.info};if(e.trackBacking)if(S(t.info),"video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new ir(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new rr(e),this.tracks.push(t)}}})}getSampleTableForTrack(e){var t,i;if(e.sampleTable)return e.sampleTable;const r={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=r,null===e.sampleTableByteOffset)return r;S(this.moovSlice);const n=this.moovSlice.slice(e.sampleTableByteOffset);this.currentTrack=e,this.traverseBox(n),this.currentTrack=null;if("audio"===(null==(t=e.info)?void 0:t.type)&&e.info.codec&&li.includes(e.info.codec)&&0===r.sampleCompositionTimeOffsets.length){S("audio"===(null==(i=e.info)?void 0:i.type));const t=vi(e.info.codec),n=[],s=[];for(let i=0;ie.startIndex),u=r.sampleTimingEntries[c],d=K(r.sampleTimingEntries,l,e=>e.startIndex),h=r.sampleTimingEntries[d],f=u.startDecodeTimestamp+(o-u.startIndex)*u.delta,m=h.startDecodeTimestamp+(l-h.startIndex)*h.delta-f,p=P(n);p&&p.delta===m?p.count++:n.push({startIndex:a.startChunkIndex+i,startDecodeTimestamp:f,count:1,delta:m});const g=a.samplesPerChunk*t.sampleSize*e.info.numberOfChannels;s.push(g)}a.startSampleIndex=a.startChunkIndex,a.samplesPerChunk=1}r.sampleTimingEntries=n,r.sampleSizes=s}if(r.sampleCompositionTimeOffsets.length>0){r.presentationTimestamps=[];for(const e of r.sampleTimingEntries)for(let t=0;te.presentationTimestamp-t.presentationTimestamp),r.presentationTimestampIndexMap=Array(r.presentationTimestamps.length).fill(-1);for(let e=0;ee.moofOffset===s.moofOffset);if(r)lr(e,r.timestamp);else{const t=K(i,s.moofOffset-1,e=>e.moofOffset);if(-1!==t){const r=i[t];lr(e,r.endTimestamp)}}e.startTimestampIsFinal=!0}const r=K(i,e.startTimestamp,e=>e.startTimestamp);if(-1!==r&&i[r].moofOffset===s.moofOffset||i.splice(r+1,0,{moofOffset:s.moofOffset,startTimestamp:e.startTimestamp,endTimestamp:e.endTimestamp}),e.encryptionAuxInfo&&t.encryptionInfo){const i=yield hr(this.reader,t.encryptionInfo,e.encryptionAuxInfo);for(let t=0;t0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;ue(t.languageCode)||(t.languageCode=re)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=Yo(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:d({},z),avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:"soun"===i&&(t.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const t=this.currentTrack;if(!t)break;t.sampleTableByteOffset=ge,this.readContiguousBoxes(e.slice(ye,ke.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=No(e);e.skip(3);const r=Wo(e);for(let n=0;n0&&(1===a?(e.skip(4),l=8*Wo(e),e.skip(8)):2===a&&(e.skip(4),c=Qo(e),o=Wo(e),e.skip(4),l=Wo(e),u=Wo(e),e.skip(8))),t.info.numberOfChannels=o,t.info.sampleRate=c,t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+n.totalSize-e.filePos));const d="enca"===s?t.frmaCodecString:s;if(t.frmaCodecString=null,"mp4a"===d);else if("opus"===d)t.info.codec="opus",t.info.sampleRate=bi;else if("flac"===d)t.info.codec="flac";else if("ulaw"===d)t.info.codec="ulaw";else if("alaw"===d)t.info.codec="alaw";else if("ac-3"===d)t.info.codec="ac3";else if("ec-3"===d)t.info.codec="eac3";else if(pi.includes(d))t.info.codec="dts",t.info.dtsFormat=d;else if("twos"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec=t.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(ze._warn(`Unsupported sample size ${l} for codec 'twos'.`),t.info.codec=null);else if("sowt"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec="pcm-s16":(ze._warn(`Unsupported sample size ${l} for codec 'sowt'.`),t.info.codec=null);else if("raw "===d)t.info.codec="pcm-u8";else if("in24"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if("in32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if("fl32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if("fl64"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if("ipcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?16===e?t.info.codec="pcm-s16":24===e?t.info.codec="pcm-s24":32===e?t.info.codec="pcm-s32":(ze._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null):16===e?t.info.codec="pcm-s16be":24===e?t.info.codec="pcm-s24be":32===e?t.info.codec="pcm-s32be":(ze._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null)}else if("fpcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?32===e?t.info.codec="pcm-f32":64===e?t.info.codec="pcm-f64":(ze._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(ze._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===d&&null!==u){const e=l+7>>3,i=Boolean(1&u),r=Boolean(2&u),n=4&u?-1:0;l>0&&l<=64&&(i?32===l&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):n&1<0?(t.encryptionInfo.defaultCryptByteBlock=r>>4,t.encryptionInfo.defaultSkipByteBlock=15&r):(t.encryptionInfo.defaultCryptByteBlock=0,t.encryptionInfo.defaultSkipByteBlock=0),t.encryptionInfo.defaultIsProtected=0!==No(e),t.encryptionInfo.defaultPerSampleIvSize=No(e),t.encryptionInfo.defaultKid=H(Mo(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=No(e),r=new Uint8Array(16);r.set(Mo(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(S(t.info),0===ke.contentSize)break;t.info.codecDescription=Mo(e,ke.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(S(t.info),0===ke.contentSize)break;t.info.codecDescription=Mo(e,ke.contentSize)}break;case"vpcC":{const i=this.currentTrack;if(!i)break;S("video"===(null==(t=i.info)?void 0:t.type)),e.skip(4);const r=No(e),n=No(e),s=No(e),a=s>>4,o=s>>1&7,l=1&s,c=No(e),u=No(e),d=No(e);i.info.vp9CodecInfo={profile:r,level:n,bitDepth:a,chromaSubsampling:o,videoFullRangeFlag:l,colourPrimaries:c,transferCharacteristics:u,matrixCoefficients:d}}break;case"av1C":{const t=this.currentTrack;if(!t)break;S("video"===(null==(i=t.info)?void 0:i.type)),e.skip(1);const o=No(e),l=o>>5,c=31&o,u=No(e),d=u>>7,h=u>>6&1,f=u>>4&1,m=u>>3&1,p=u>>2&1,g=3&u,k=2===l&&h?u>>5&1?12:10:h?10:8;e.skip(1);const y=Mo(e,ke.contentSize-4),b=At(y);t.info.av1CodecInfo={profile:l,level:c,tier:d,bitDepth:k,monochrome:f,chromaSubsamplingX:m,chromaSubsamplingY:p,chromaSamplePosition:g,videoFullRangeFlag:null!=(r=null==b?void 0:b.videoFullRangeFlag)?r:0,colourPrimaries:null!=(n=null==b?void 0:b.colourPrimaries)?n:2,transferCharacteristics:null!=(s=null==b?void 0:b.transferCharacteristics)?s:2,matrixCoefficients:null!=(a=null==b?void 0:b.matrixCoefficients)?a:2}}break;case"colr":{const t=this.currentTrack;if(!t)break;S("video"===(null==(o=t.info)?void 0:o.type));const i=Yo(e,4);if("nclx"!==i&&"nclc"!==i)break;const r=Lo(e),n=Lo(e),s=Lo(e);let a;"nclx"===i&&(a=Boolean(128&No(e))),t.info.colorSpace={primaries:A[r],transfer:M[n],matrix:O[s],fullRange:a}}break;case"pasp":{const t=this.currentTrack;if(!t)break;S("video"===(null==(l=t.info)?void 0:l.type));const i=Wo(e),r=Wo(e);i>0&&r>0&&(i>r?t.info.squarePixelWidth=Math.round(t.info.width*i/r):t.info.squarePixelHeight=Math.round(t.info.height*r/i))}break;case"esds":{const t=this.currentTrack;if(!t||"audio"!==(null==(c=t.info)?void 0:c.type))break;e.skip(4);S(3===No(e)),qi(e),e.skip(2);const i=No(e),r=0!==(64&i),n=0!==(32&i);if(0!==(128&i)&&e.skip(2),r){const t=No(e);e.skip(t)}n&&e.skip(2);S(4===No(e));const s=qi(e),a=e.filePos,o=No(e);if(64===o||103===o?(t.info.codec="aac",t.info.aacCodecInfo={isMpeg2:103===o,objectType:null}):105===o||107===o?t.info.codec="mp3":221===o?t.info.codec="vorbis":169===o?t.info.codec="dts":ze._warn(`Unsupported audio codec (objectTypeIndication ${o}) - discarding track.`),e.skip(12),s>e.filePos-a){S(5===No(e));const i=qi(e);if(t.info.codecDescription=Mo(e,i),"aac"===t.info.codec){const e=Ke(t.info.codecDescription);null!==e.outputNumberOfChannels&&(t.info.numberOfChannels=e.outputNumberOfChannels),null!==e.outputSampleRate&&(t.info.sampleRate=e.outputSampleRate)}}}break;case"enda":{const t=this.currentTrack;if(!t)break;S("audio"===(null==(u=t.info)?void 0:u.type)),t.info.pcmLittleEndian=!!(255&Lo(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;S("audio"===(null==(f=t.info)?void 0:f.type)),e.skip(4);const i=No(e);t.info.pcmLittleEndian=Boolean(1&i),t.info.pcmSampleSize=No(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;S("audio"===(null==(m=t.info)?void 0:m.type)),e.skip(1);const i=No(e),r=Lo(e),n=Wo(e),s=Uo(e),a=No(e);let o;o=0!==a?Mo(e,2+i):new Uint8Array(0);const l=new Uint8Array(19+o.byteLength),c=new DataView(l.buffer);c.setUint32(0,1332770163,!1),c.setUint32(4,1214603620,!1),c.setUint8(8,1),c.setUint8(9,i),c.setUint16(10,r,!0),c.setUint32(12,n,!0),c.setInt16(16,s,!0),c.setUint8(18,a),l.set(o,19),t.info.codecDescription=l,t.info.numberOfChannels=i}break;case"dfLa":{const t=this.currentTrack;if(!t)break;S("audio"===(null==(p=t.info)?void 0:p.type)),e.skip(4);const i=127,r=128,n=e.filePos;for(;e.filePos>>12,n=1+(i>>9&7);t.info.sampleRate=r,t.info.numberOfChannels=n,e.skip(20)}else e.skip(s);if(n&r)break}const s=e.filePos;e.filePos=n;const a=Mo(e,s-n),o=new Uint8Array(4+a.byteLength);new DataView(o.buffer).setUint32(0,1716281667,!1),o.set(a,4),t.info.codecDescription=o}break;case"dac3":{const t=this.currentTrack;if(!t)break;S("audio"===(null==(g=t.info)?void 0:g.type));const i=Mo(e,3),r=new He(i),n=r.readBits(2);r.skipBits(8);const s=r.readBits(3),a=r.readBits(1);n<3&&(t.info.sampleRate=Ge[n]),t.info.numberOfChannels=qt[s]+a}break;case"dec3":{const t=this.currentTrack;if(!t)break;S("audio"===(null==(k=t.info)?void 0:k.type));const i=(e=>{if(e.length<2)return null;const t=new He(e),i=t.readBits(13),r=t.readBits(3),n=[];for(let s=0;s<=r&&!(Math.ceil(t.pos/8)+3>e.length);s++){const e=t.readBits(2),i=t.readBits(5);t.skipBits(1),t.skipBits(1);const r=t.readBits(3),s=t.readBits(3),a=t.readBits(1);t.skipBits(3);const o=t.readBits(4);let l=0;o>0?l=t.readBits(9):t.skipBits(1),n.push({fscod:e,fscod2:null,bsid:i,bsmod:r,acmod:s,lfeon:a,numDepSub:o,chanLoc:l})}return 0===n.length?null:{dataRate:i,substreams:n}})(Mo(e,ke.contentSize));if(!i){ze._warn("Invalid dec3 box contents, ignoring.");break}const r=Kt(i);null!==r&&(t.info.sampleRate=r),t.info.numberOfChannels=Xt(i)}break;case"ddts":{const t=this.currentTrack;if(!t)break;S("audio"===(null==(y=t.info)?void 0:y.type));const i=(e=>{if(e.length<20)return null;const t=E(e),i=t.getUint32(0);if(0===i)return null;const r=new He(e);r.seekToByte(13);const n=r.readBits(2);r.skipBits(5);const s=r.readBits(1),a=r.readBits(6);r.skipBits(14),r.skipBits(1),r.skipBits(3);const o=r.readBits(16);let l=null;return 0!==o?l=ai(o):ae.id===i);if(!r)break;const n=Wo(e),s=(12&n)>>2,a=3&n,o=[No,Lo,zo,Wo],l=o[(48&n)>>4],c=o[s],u=o[a],d=Wo(e);for(let h=0;he.timestamp-t.timestamp);for(let e=0;e({presentationTimestamp:e.presentationTimestamp,sampleIndex:t})).sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp);for(let n=0;ne.id===c);if(!u)break;const d=this.fragmentTrackDefaults.find(e=>e.trackId===c);this.currentTrack=u,u.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:null!=(T=null==d?void 0:d.defaultSampleDescriptionIndex)?T:null,defaultSampleDuration:null!=(v=null==d?void 0:d.defaultSampleDuration)?v:null,defaultSampleSize:null!=(I=null==d?void 0:d.defaultSampleSize)?I:null,defaultSampleFlags:null!=(x=null==d?void 0:d.defaultSampleFlags)?x:null,startTimestamp:null,encryptionAuxInfo:null},i?u.currentFragmentState.baseDataOffset=Ko(e):l&&(u.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),r&&(u.currentFragmentState.sampleDescriptionIndex=Wo(e)),n&&(u.currentFragmentState.defaultSampleDuration=Wo(e)),s&&(u.currentFragmentState.defaultSampleSize=Wo(e)),a&&(u.currentFragmentState.defaultSampleFlags=Wo(e)),o&&(u.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;S(t.currentFragmentState);const i=No(e);e.skip(3);const r=0===i?Wo(e):Ko(e);t.currentFragmentState.startTimestamp=r}break;case"trun":{const t=this.currentTrack;if(!t)break;S(this.currentFragment),S(t.currentFragmentState);const i=No(e),r=zo(e),n=Boolean(1&r),s=Boolean(4&r),a=Boolean(256&r),o=Boolean(512&r),l=Boolean(1024&r),c=Boolean(2048&r),u=Wo(e);let d=null;n&&(d=Vo(e));let h,f=null;s&&(f=Wo(e)),this.currentFragment.trackData.has(t.id)?(h=this.currentFragment.trackData.get(t.id),null!==d&&(h.currentOffset=t.currentFragmentState.baseDataOffset+d)):(h={track:t,currentTimestamp:0,currentOffset:t.currentFragmentState.baseDataOffset+(null!=d?d:0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(t.id,h));for(let m=0;m0&&(n=Mo(e,r));const s=dr(t);s.defaultSampleInfoSize=i,s.sampleSizes=n,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=No(e);if(1&zo(e)){const i=Yo(e,4),r=Wo(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=Wo(e);if(0===r)break;r>1&&ze._warn("Multiple saio entries are not supported; using the first offset only.");let n=0===i?Wo(e):Number(Ko(e));this.currentFragment&&(n+=this.currentFragment.moofOffset);dr(t).offset=n}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;S(this.currentFragment);const i=this.currentFragment.trackData.get(t.id);if(!i)break;e.skip(1);const r=zo(e),n=Boolean(2&r),s=Wo(e),a=t.encryptionInfo.defaultPerSampleIvSize;S(null!==a);for(let o=0;o0?r.set(Mo(e,a),0):r.set(t.encryptionInfo.defaultConstantIv,0);let s=null;if(n){const t=Lo(e);s=[];for(let i=0;i0&&(null!=(ce=this.metadataTags).trackNumber||(ce.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(de=this.metadataTags).tracksTotal||(de.tracksTotal=i))}break;case"trkn":if(n instanceof Uint8Array&&n.length>=6){const e=E(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(he=this.metadataTags).trackNumber||(he.trackNumber=t)),i>0&&(null!=(fe=this.metadataTags).tracksTotal||(fe.tracksTotal=i))}break;case"disc":case"disk":if(n instanceof Uint8Array&&n.length>=6){const e=E(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(me=this.metadataTags).discNumber||(me.discNumber=t)),i>0&&(null!=(pe=this.metadataTags).discsTotal||(pe.discsTotal=i))}}}}}return e.filePos=be,!0}}class tr{constructor(e){this.internalTrack=e,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.tracks)if(r.trackBacking.getType()===t&&i++,r===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return p(this,null,function*(){var e;const t=this.internalTrack;if(t.durationInMediaTimescale<=0)return null;S(t.trackBacking);const i=yield t.trackBacking.getFirstPacket({metadataOnly:!0});return(null!=(e=null==i?void 0:i.timestamp)?e:0)+t.durationInMediaTimescale/t.timescale})}getLiveRefreshInterval(){return p(this,null,function*(){return null})}getFirstPacket(e){return p(this,null,function*(){const t=yield this.fetchPacketForSampleIndex(0,e);return t||!this.internalTrack.demuxer.isFragmented?t:this.performFragmentedLookup(null,e=>e.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,e)})}mapTimestampIntoTimescale(e){return ne(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}getPacket(e,t){return p(this,null,function*(){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),n=nr(r,i),s=yield this.fetchPacketForSampleIndex(n,t);return ur(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=K(t.presentationTimestamps,i,e=>e.presentationTimestamp);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id);if(r.sampleIndex+1{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=Y(t.presentationTimestamps,e=>t.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=i);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id).samples.findIndex((e,t)=>e.isKeyFrame&&t>r.sampleIndex);if(-1!==t)return{sampleIndex:t,correctSampleFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.samples.findIndex(e=>e.isKeyFrame);return S(-1!==e),{sampleIndex:e,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)})}fetchPacketForSampleIndex(e,t){return p(this,null,function*(){if(-1===e)return null;const i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=ar(i,e);if(!r)return null;let n;if(t.metadataOnly)n=Di;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(Pe(t)&&(t=yield t),!t)return null;if(n=Mo(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=yield hr(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);ee.timestamp),f=-1!==h?this.internalTrack.fragmentLookupTable[h]:null,m=K(this.internalTrack.fragmentPositionCache,i,e=>e.startTimestamp),p=-1!==m?this.internalTrack.fragmentPositionCache[m]:null,g=Math.max(null!=(s=null==f?void 0:f.moofOffset)?s:0,null!=(a=null==p?void 0:p.moofOffset)?a:0)||null;let k;for(e?null===g||e.moofOffset>=g?(k=e.moofOffset+e.moofSize,c=e):k=g:k=null!=g?g:0;;){if(c){const e=c.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=l.reader.requestSliceRange(k,8,16);if(Pe(e)&&(e=yield e),!e)break;const i=k,s=Li(e);if(!s)break;if("moof"===s.name){c=yield l.readFragment(i);const{sampleIndex:e,correctSampleFound:r}=t(c);if(r)return this.fetchPacketInFragment(c,e,n);-1!==e&&(u=c,d=e)}k=i+s.totalSize}if(f&&(!u||u.moofOffsetp(this,null,function*(){var e,t,i,r,n,s,a;if("avc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("hevc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("vp9"!==this.internalTrack.info.codec||this.internalTrack.info.vp9CodecInfo&&(2!==(a=this.internalTrack.info.vp9CodecInfo).colourPrimaries||2!==a.transferCharacteristics||2!==a.matrixCoefficients))if("av1"!==this.internalTrack.info.codec||this.internalTrack.info.av1CodecInfo&&(e=>2!==e.colourPrimaries||2!==e.transferCharacteristics||2!==e.matrixCoefficients)(this.internalTrack.info.av1CodecInfo)){if("prores"===this.internalTrack.info.codec&&!this.internalTrack.info.proresCodecInfo){const e=yield this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=e&&Dt(e.data)}}else{const e=yield this.getFirstPacket({}),t=e&&At(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const t=yield this.getFirstPacket({}),i=t&&Rt(t.data);i&&(this.internalTrack.info.vp9CodecInfo=h(d({},null!=(e=this.internalTrack.info.vp9CodecInfo)?e:i),{videoFullRangeFlag:i.videoFullRangeFlag,colourPrimaries:i.colourPrimaries,transferCharacteristics:i.transferCharacteristics,matrixCoefficients:i.matrixCoefficients}))}else{const e=yield this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=e&&bt(e.data)}else{const e=yield this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&ct(e.data)}if(!L(this.internalTrack.info.colorSpace)){const e=ki(this.internalTrack.info);null!=(t=this.internalTrack.info.colorSpace).primaries||(t.primaries=e.primaries),null!=(i=this.internalTrack.info.colorSpace).transfer||(i.transfer=e.transfer),null!=(r=this.internalTrack.info.colorSpace).matrix||(r.matrix=e.matrix),null!=(n=this.internalTrack.info.colorSpace).fullRange||(n.fullRange=e.fullRange)}const o={codec:gi(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(s=this.internalTrack.info.codecDescription)?s:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class rr extends tr{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return p(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>p(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&ri(e.data)}return{codec:yi(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const nr=(e,t)=>{if(e.presentationTimestamps){const i=K(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=K(e.sampleTimingEntries,t,e=>e.startDecodeTimestamp);if(-1===i)return-1;const r=e.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},sr=(e,t)=>{var i;if(!e.keySampleIndices)return nr(e,t);if(e.presentationTimestamps){const i=K(e.presentationTimestamps,t,e=>e.presentationTimestamp);if(-1===i)return-1;for(let t=i;t>=0;t--){const i=e.presentationTimestamps[t].sampleIndex;if(-1!==j(e.keySampleIndices,i,e=>e))return i}return-1}{const r=nr(e,t),n=K(e.keySampleIndices,r,e=>e);return null!=(i=e.keySampleIndices[n])?i:-1}},ar=(e,t)=>{const i=K(e.sampleTimingEntries,t,e=>e.startIndex),r=e.sampleTimingEntries[i];if(!r||r.startIndex+r.count<=t)return null;let n=r.startDecodeTimestamp+(t-r.startIndex)*r.delta;const s=K(e.sampleCompositionTimeOffsets,t,e=>e.startIndex),a=e.sampleCompositionTimeOffsets[s];a&&t-a.startIndexe.startSampleIndex),c=e.sampleToChunk[l];S(c);const u=c.startChunkIndex+Math.floor((t-c.startSampleIndex)/c.samplesPerChunk),d=e.chunkOffsets[u],h=c.startSampleIndex+(u-c.startChunkIndex)*c.samplesPerChunk;let f=0,m=d;if(1===e.sampleSizes.length)m+=o*(t-h),f+=o*c.samplesPerChunk;else for(let g=h;ge)}},or=(e,t)=>{var i;if(!e.keySampleIndices)return t+1;const r=K(e.keySampleIndices,t,e=>e);return null!=(i=e.keySampleIndices[r+1])?i:-1},lr=(e,t)=>{e.startTimestamp+=t,e.endTimestamp+=t;for(const i of e.samples)i.presentationTimestamp+=t;for(const i of e.presentationTimestamps)i.presentationTimestamp+=t},cr=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},ur=e=>0===e.sampleSizes.length,dr=e=>{var t,i,r;return e.currentFragmentState?null!=(i=(t=e.currentFragmentState).encryptionAuxInfo)?i:t.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}:null!=(r=e.encryptionAuxInfo)?r:e.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}},hr=(e,t,i)=>p(null,null,function*(){if(i.resolved)return i.resolved;if(null===i.offset||0===i.sampleCount)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let r=0;if(i.defaultSampleInfoSize>0)r=i.defaultSampleInfoSize*i.sampleCount;else{S(i.sampleSizes);for(let e=0;e0?i.defaultSampleInfoSize:i.sampleSizes[e],o=new Uint8Array(16);s>0?o.set(Mo(n,s),0):o.set(t.defaultConstantIv,0);let l=null;if(r>s){const e=Lo(n);l=[];for(let t=0;te.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,mr=(e,t,i,r)=>p(null,null,function*(){var n;S(e.encryptionInfo);const s=e.encryptionInfo;S(null!==s.defaultKid);const a=s.defaultKid;let o;const l=e.demuxer.decryptionKeyCache.get(a);if(l)o=yield l;else{if(!(null==(n=e.demuxer.input._formatOptions.isobmff)?void 0:n.resolveKeyId))throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const t=p(null,null,function*(){let t=e.demuxer.psshBoxes;if(r){t=[...t,...r.psshBoxes].filter(e=>null===e.keyIds||e.keyIds.includes(a));for(let e=0;e{S(e.length%2===0);const t=new Uint8Array(e.length/2);for(let i=0;ip(null,null,function*(){const n=new Uint8Array(16);n.set(i.iv,0);const s=yield crypto.subtle.importKey("raw",e,{name:"AES-CTR"},!1,["decrypt"]),a=e=>p(null,null,function*(){const t=yield crypto.subtle.decrypt({name:"AES-CTR",counter:n,length:64},s,e);return new Uint8Array(t)});if(!i.subsamples)return a(r);S(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const o=kr(i.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock);let l=0;for(const e of o)for(const t of e.perSubsample)l+=t.length;const c=new Uint8Array(l);let u=0;for(const e of o)for(const t of e.perSubsample)c.set(r.subarray(t.offset,t.offset+t.length),u),u+=t.length;const d=yield a(c),h=new Uint8Array(r);let f=0;for(const e of o)for(const t of e.perSubsample)h.set(d.subarray(f,f+t.length),t.offset),f+=t.length;return h}),gr=(e,t,i,r)=>{const n=new Zi;n.init({key:e,iv:i.iv});const s=t.defaultCryptByteBlock,a=t.defaultSkipByteBlock;if(S(null!==s&&null!==a),!i.subsamples){const e=new Uint8Array(r),t=Math.floor(r.length/16);for(let i=0;i{const r=[],n=0!==t||0!==i;let s=0;for(const a of e){s+=a.clearLen;const e=[];if(n){let r=a.protectedLen,n=s;for(;r>0&&!(r<16*t);){const s=16*t;e.push({offset:n,length:s}),n+=s,r-=s;const a=Math.min(16*i,r);n+=a,r-=a}s+=a.protectedLen}else a.protectedLen>0&&e.push({offset:s,length:a.protectedLen}),s+=a.protectedLen;r.push({perSubsample:e})}return r};var yr,br;(br=yr||(yr={}))[br.EBML=440786851]="EBML",br[br.EBMLVersion=17030]="EBMLVersion",br[br.EBMLReadVersion=17143]="EBMLReadVersion",br[br.EBMLMaxIDLength=17138]="EBMLMaxIDLength",br[br.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",br[br.DocType=17026]="DocType",br[br.DocTypeVersion=17031]="DocTypeVersion",br[br.DocTypeReadVersion=17029]="DocTypeReadVersion",br[br.Void=236]="Void",br[br.Segment=408125543]="Segment",br[br.SeekHead=290298740]="SeekHead",br[br.Seek=19899]="Seek",br[br.SeekID=21419]="SeekID",br[br.SeekPosition=21420]="SeekPosition",br[br.Duration=17545]="Duration",br[br.Info=357149030]="Info",br[br.TimestampScale=2807729]="TimestampScale",br[br.MuxingApp=19840]="MuxingApp",br[br.WritingApp=22337]="WritingApp",br[br.Tracks=374648427]="Tracks",br[br.TrackEntry=174]="TrackEntry",br[br.TrackNumber=215]="TrackNumber",br[br.TrackUID=29637]="TrackUID",br[br.TrackType=131]="TrackType",br[br.FlagEnabled=185]="FlagEnabled",br[br.FlagDefault=136]="FlagDefault",br[br.FlagForced=21930]="FlagForced",br[br.FlagOriginal=21934]="FlagOriginal",br[br.FlagHearingImpaired=21931]="FlagHearingImpaired",br[br.FlagVisualImpaired=21932]="FlagVisualImpaired",br[br.FlagCommentary=21935]="FlagCommentary",br[br.FlagLacing=156]="FlagLacing",br[br.Name=21358]="Name",br[br.Language=2274716]="Language",br[br.LanguageBCP47=2274717]="LanguageBCP47",br[br.CodecID=134]="CodecID",br[br.CodecPrivate=25506]="CodecPrivate",br[br.CodecDelay=22186]="CodecDelay",br[br.SeekPreRoll=22203]="SeekPreRoll",br[br.DefaultDuration=2352003]="DefaultDuration",br[br.Video=224]="Video",br[br.PixelWidth=176]="PixelWidth",br[br.PixelHeight=186]="PixelHeight",br[br.DisplayWidth=21680]="DisplayWidth",br[br.DisplayHeight=21690]="DisplayHeight",br[br.DisplayUnit=21682]="DisplayUnit",br[br.AlphaMode=21440]="AlphaMode",br[br.Audio=225]="Audio",br[br.SamplingFrequency=181]="SamplingFrequency",br[br.Channels=159]="Channels",br[br.BitDepth=25188]="BitDepth",br[br.SimpleBlock=163]="SimpleBlock",br[br.BlockGroup=160]="BlockGroup",br[br.Block=161]="Block",br[br.BlockAdditions=30113]="BlockAdditions",br[br.BlockMore=166]="BlockMore",br[br.BlockAdditional=165]="BlockAdditional",br[br.BlockAddID=238]="BlockAddID",br[br.BlockDuration=155]="BlockDuration",br[br.ReferenceBlock=251]="ReferenceBlock",br[br.Cluster=524531317]="Cluster",br[br.Timestamp=231]="Timestamp",br[br.Cues=475249515]="Cues",br[br.CuePoint=187]="CuePoint",br[br.CueTime=179]="CueTime",br[br.CueTrackPositions=183]="CueTrackPositions",br[br.CueTrack=247]="CueTrack",br[br.CueClusterPosition=241]="CueClusterPosition",br[br.Colour=21936]="Colour",br[br.MatrixCoefficients=21937]="MatrixCoefficients",br[br.TransferCharacteristics=21946]="TransferCharacteristics",br[br.Primaries=21947]="Primaries",br[br.Range=21945]="Range",br[br.Projection=30320]="Projection",br[br.ProjectionType=30321]="ProjectionType",br[br.ProjectionPoseRoll=30325]="ProjectionPoseRoll",br[br.Attachments=423732329]="Attachments",br[br.AttachedFile=24999]="AttachedFile",br[br.FileDescription=18046]="FileDescription",br[br.FileName=18030]="FileName",br[br.FileMediaType=18016]="FileMediaType",br[br.FileData=18012]="FileData",br[br.FileUID=18094]="FileUID",br[br.Chapters=272869232]="Chapters",br[br.Tags=307544935]="Tags",br[br.Tag=29555]="Tag",br[br.Targets=25536]="Targets",br[br.TargetTypeValue=26826]="TargetTypeValue",br[br.TargetType=25546]="TargetType",br[br.TagTrackUID=25541]="TagTrackUID",br[br.TagEditionUID=25545]="TagEditionUID",br[br.TagChapterUID=25540]="TagChapterUID",br[br.TagAttachmentUID=25542]="TagAttachmentUID",br[br.SimpleTag=26568]="SimpleTag",br[br.TagName=17827]="TagName",br[br.TagLanguage=17530]="TagLanguage",br[br.TagString=17543]="TagString",br[br.TagBinary=17541]="TagBinary",br[br.ContentEncodings=28032]="ContentEncodings",br[br.ContentEncoding=25152]="ContentEncoding",br[br.ContentEncodingOrder=20529]="ContentEncodingOrder",br[br.ContentEncodingScope=20530]="ContentEncodingScope",br[br.ContentCompression=20532]="ContentCompression",br[br.ContentCompAlgo=16980]="ContentCompAlgo",br[br.ContentCompSettings=16981]="ContentCompSettings",br[br.ContentEncryption=20533]="ContentEncryption";const Tr=[yr.EBML,yr.Segment],vr=[yr.SeekHead,yr.Info,yr.Cluster,yr.Tracks,yr.Cues,yr.Attachments,yr.Chapters,yr.Tags],Sr=[...Tr,...vr],wr=16,Pr=e=>{if(e.remainingLength<1)return null;const t=No(e);if(e.skip(-1),0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;return e.remainingLength{if(e.remainingLength<1)return null;const t=No(e);if(0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;if(e.remainingLength{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let i=0;for(let r=0;r{const t=Pr(e);if(null===t)return null;if(e.remainingLength{if(e.remainingLength<1)return null;if(255===No(e))return;e.skip(-1);const t=Ir(e);return null===t?null:72057594037927940!==t?t:void 0},Er=e=>{S(e.remainingLength>=2);const t=Cr(e);if(null===t)return null;const i=Br(e);return null===i?null:{id:t,size:i}},_r=(e,t)=>{const i=Mo(e,t);let r=0;for(;r{const i=Mo(e,t);let r=0;for(;r{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?Go(e):Qo(e)},Ar=(e,t,i,r)=>p(null,null,function*(){const n=new Set(i);let s=t;for(;null===r||ss?r:s,found:!1}}),Dr=(e,t,i,r)=>p(null,null,function*(){const n=c(2,16),s=new Set(i);let a=t;for(;ae.tracks.map(e=>e.trackBacking))})}getMimeType(){return p(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings.filter(Boolean))].join(", ")}"`);return t})({isWebM:this.isWebM,hasVideo:this.segments.some(e=>e.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)})),hasAudio:this.segments.some(e=>e.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)})),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return p(this,null,function*(){yield this.readMetadata();for(const t of this.segments)t.metadataTagsCollected||(null!==this.reader.fileSize&&(yield this.loadSegmentMetadata(t)),t.metadataTagsCollected=!0);let e={};for(const t of this.segments)e=d(d({},e),t.metadataTags);return e})}readMetadata(){var e;return null!=(e=this.readMetadataPromise)?e:this.readMetadataPromise=(()=>p(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,2,wr);if(Pe(t)&&(t=yield t),!t)break;const i=Er(t);if(!i)break;const r=i.id;let n=i.size;const s=t.filePos;if(r===yr.EBML){Gr(n);let e=this.reader.requestSlice(s,n);if(Pe(e)&&(e=yield e),!e)break;this.readContiguousElements(e)}else if(r===yr.Segment){if(yield this.readSegment(s,n),void 0===n)break;if(null===this.reader.fileSize)break}else if(r===yr.Cluster){if(null===this.reader.fileSize)break;if(void 0===n){n=(yield Ar(this.reader,s,Sr,this.reader.fileSize)).pos-s}const e=P(this.segments);e&&(e.elementEndPos=s+n)}Gr(n),e=s+n}}))()}readSegment(e,t){return p(this,null,function*(){var i;this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:void 0===t?null:e+t,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let r=e;for(;null===this.currentSegment.elementEndPos||re.id===s);if(-1!==l){const e=rn[l].flag;this.currentSegment[e]=!0,Gr(a);let t=this.reader.requestSlice(o,a);Pe(t)&&(t=yield t),t&&this.readContiguousElements(t)}else if(s===yr.Tags||s===yr.Attachments){s===yr.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,Gr(a);let e=this.reader.requestSlice(o,a);Pe(e)&&(e=yield e),e&&this.readContiguousElements(e)}else if(s===yr.Cluster){this.currentSegment.clusterSeekStartPos=t;break}if(void 0===a)break;r=o+a}if(this.currentSegment.seekEntries.sort((e,t)=>e.segmentPosition-t.segmentPosition),null!==this.reader.fileSize)for(const t of this.currentSegment.seekEntries){const i=rn.find(e=>e.id===t.id);if(!i)continue;if(this.currentSegment[i.flag])continue;let r=this.reader.requestSliceRange(e+t.segmentPosition,2,wr);if(Pe(r)&&(r=yield r),!r)continue;const n=Er(r);if(!n)continue;const{id:s,size:a}=n;if(s!==i.id)continue;Gr(a),this.currentSegment[i.flag]=!0;let o=this.reader.requestSlice(r.filePos,a);Pe(o)&&(o=yield o),o&&this.readContiguousElements(o)}-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3);for(const e of this.currentSegment.tracks)null!==e.defaultDurationNs&&(e.defaultDuration=this.currentSegment.timestampFactor*e.defaultDurationNs/1e9);const n=new Map(this.currentSegment.tracks.map(e=>[e.id,e]));for(const e of this.currentSegment.cuePoints){const t=n.get(e.trackId);t&&t.cuePoints.push(e)}for(const e of this.currentSegment.tracks){e.cuePoints.sort((e,t)=>e.time-t.time);for(let t=0;ta&&(a=e.cuePoints.length,s=e);for(const e of this.currentSegment.tracks)0===e.cuePoints.length&&(e.cuePoints=s.cuePoints);this.currentSegment=null})}readCluster(e,t){return p(this,null,function*(){var i;if((null==(i=t.lastReadCluster)?void 0:i.elementStartPos)===e)return t.lastReadCluster;let r=this.reader.requestSliceRange(e,2,wr);Pe(r)&&(r=yield r),S(r);const n=e,s=Er(r);S(s);S(s.id===yr.Cluster);let a=s.size;const o=r.filePos;if(void 0===a){a=(yield Ar(this.reader,o,Sr,t.elementEndPos)).pos-o}let l=this.reader.requestSlice(o,a);Pe(l)&&(l=yield l);const c={segment:t,elementStartPos:n,elementEndPos:o+a,dataStartPos:o,timestamp:-1,trackData:new Map};if(this.currentCluster=c,l){const e=this.readContiguousElements(l,Sr);c.elementEndPos=e}for(const[,e]of c.trackData){const t=e.track;S(e.blocks.length>0);let i=!1;for(let n=0;n({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp);for(let n=0;n({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp));const r=e.blocks[e.presentationTimestamps[0].blockIndex],s=e.blocks[P(e.presentationTimestamps).blockIndex];e.startTimestamp=r.timestamp,e.endTimestamp=s.timestamp+s.duration;const a=K(t.clusterPositionCache,e.startTimestamp,e=>e.startTimestamp);-1!==a&&t.clusterPositionCache[a].elementStartPos===n||t.clusterPositionCache.splice(a+1,0,{elementStartPos:c.elementStartPos,startTimestamp:e.startTimestamp})}return t.lastReadCluster=c,c})}getTrackDataInCluster(e,t){let i=e.trackData.get(t);if(!i){const r=e.segment.tracks.find(e=>e.id===t);if(!r)return null;i={track:r,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,i)}return i}expandLacedBlocks(e,t){var i;for(let r=0;r=2;){const i=e.filePos;if(!this.traverseElement(e,t))return i}return e.filePos}traverseElement(e,t){var i,r,n,s,a,o,l,c,u,f,m,p,g,k,y,b,T,v,P,I,x,C,B,E,R,F,D,N,L,U,q,W,H,V,j,K,X,$,G,Q,Y,J,Z,ee,te,ie,ne,se,ae,oe,le;const ce=Er(e);if(!ce)return!1;if(t&&t.includes(ce.id))return!1;const{id:de,size:he}=ce,fe=e.filePos;switch(Gr(he),de){case yr.DocType:this.isWebM="webm"===_r(e,he);break;case yr.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(fe,he)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case yr.SeekID:{const t=null==(i=this.currentSegment)?void 0:i.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=xr(e,he)}break;case yr.SeekPosition:{const t=null==(r=this.currentSegment)?void 0:r.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=xr(e,he)}break;case yr.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=xr(e,he),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case yr.Duration:if(!this.currentSegment)break;this.currentSegment.duration=Fr(e,he);break;case yr.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:h(d({},We),{primary:!1}),trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(fe,he)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>{var t;return"decompress"!==(null==(t=e.data)?void 0:t.type)||e.scope!==Jr.Block||e.data.algorithm!==en.HeaderStripping})&&(ze._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){const e=this.currentTrack.codecId.indexOf("/"),t=-1===e?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,e);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,null!==this.currentTrack.info.displayWidth&&null!==this.currentTrack.info.displayHeight){const e=this.currentTrack.info.displayWidth*this.currentTrack.info.height,t=this.currentTrack.info.displayHeight*this.currentTrack.info.width;e>0&&t>0&&(e>t?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*e/t):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*t/e))}if(this.currentTrack.codecId===Mr)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===Nr)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===Or)this.currentTrack.info.codec="vp8";else if(t===Lr)this.currentTrack.info.codec="vp9";else if(t===zr)this.currentTrack.info.codec="av1";else if(t===Ur){const e=this.currentTrack.codecPrivate?_.decode(this.currentTrack.codecPrivate):"";mi.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new on(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===qr?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===Wr?this.currentTrack.info.codec="mp3":t===Hr?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=bi):t===Vr?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===jr?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Kr?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Xr?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===$r?(this.currentTrack.info.codec="dts","A_DTS/EXPRESS"===this.currentTrack.codecId?this.currentTrack.info.dtsFormat="dtse":"A_DTS/LOSSLESS"===this.currentTrack.codecId&&(this.currentTrack.info.dtsFormat="dtsl")):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));const e=this.currentTrack;this.currentTrack.trackBacking=new ln(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case yr.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=xr(e,he);break;case yr.TrackType:{if(!this.currentTrack)break;const t=xr(e,he);1===t?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:d({},z),alphaMode:!1,proresFormat:null}:2===t&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case yr.FlagEnabled:if(!this.currentTrack)break;xr(e,he)||(this.currentTrack=null);break;case yr.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!xr(e,he);break;case yr.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!xr(e,he);break;case yr.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!xr(e,he);break;case yr.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!xr(e,he);break;case yr.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!xr(e,he);break;case yr.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!xr(e,he);break;case yr.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=_r(e,he);break;case yr.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=Mo(e,he);break;case yr.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=xr(e,he);break;case yr.Name:if(!this.currentTrack)break;this.currentTrack.name=Rr(e,he);break;case yr.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=_r(e,he),ue(this.currentTrack.languageCode)||(this.currentTrack.languageCode=re);break;case yr.LanguageBCP47:{if(!this.currentTrack)break;const t=_r(e,he).split("-")[0];this.currentTrack.languageCode=t||re,this.currentTrack.hasLanguageBcp47=!0}break;case yr.Video:if("video"!==(null==(s=null==(n=this.currentTrack)?void 0:n.info)?void 0:s.type))break;this.readContiguousElements(e.slice(fe,he));break;case yr.PixelWidth:if("video"!==(null==(o=null==(a=this.currentTrack)?void 0:a.info)?void 0:o.type))break;this.currentTrack.info.width=xr(e,he);break;case yr.PixelHeight:if("video"!==(null==(c=null==(l=this.currentTrack)?void 0:l.info)?void 0:c.type))break;this.currentTrack.info.height=xr(e,he);break;case yr.DisplayWidth:if("video"!==(null==(f=null==(u=this.currentTrack)?void 0:u.info)?void 0:f.type))break;this.currentTrack.info.displayWidth=xr(e,he);break;case yr.DisplayHeight:if("video"!==(null==(p=null==(m=this.currentTrack)?void 0:m.info)?void 0:p.type))break;this.currentTrack.info.displayHeight=xr(e,he);break;case yr.DisplayUnit:if("video"!==(null==(k=null==(g=this.currentTrack)?void 0:g.info)?void 0:k.type))break;this.currentTrack.info.displayUnit=xr(e,he);break;case yr.AlphaMode:if("video"!==(null==(b=null==(y=this.currentTrack)?void 0:y.info)?void 0:b.type))break;this.currentTrack.info.alphaMode=1===xr(e,he);break;case yr.Colour:if("video"!==(null==(v=null==(T=this.currentTrack)?void 0:T.info)?void 0:v.type))break;this.readContiguousElements(e.slice(fe,he));break;case yr.MatrixCoefficients:{if("video"!==(null==(I=null==(P=this.currentTrack)?void 0:P.info)?void 0:I.type))break;const t=xr(e,he),i=O[t];this.currentTrack.info.colorSpace.matrix=i}break;case yr.Range:{if("video"!==(null==(C=null==(x=this.currentTrack)?void 0:x.info)?void 0:C.type))break;const t=xr(e,he);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case yr.TransferCharacteristics:{if("video"!==(null==(E=null==(B=this.currentTrack)?void 0:B.info)?void 0:E.type))break;const t=xr(e,he),i=M[t];this.currentTrack.info.colorSpace.transfer=i}break;case yr.Primaries:{if("video"!==(null==(F=null==(R=this.currentTrack)?void 0:R.info)?void 0:F.type))break;const t=xr(e,he),i=A[t];this.currentTrack.info.colorSpace.primaries=i}break;case yr.Projection:if("video"!==(null==(N=null==(D=this.currentTrack)?void 0:D.info)?void 0:N.type))break;this.readContiguousElements(e.slice(fe,he));break;case yr.ProjectionPoseRoll:{if("video"!==(null==(U=null==(L=this.currentTrack)?void 0:L.info)?void 0:U.type))break;const t=-Fr(e,he);try{this.currentTrack.info.rotation=w(t)}catch(me){}}break;case yr.Audio:if("audio"!==(null==(W=null==(q=this.currentTrack)?void 0:q.info)?void 0:W.type))break;this.readContiguousElements(e.slice(fe,he));break;case yr.SamplingFrequency:if("audio"!==(null==(V=null==(H=this.currentTrack)?void 0:H.info)?void 0:V.type))break;this.currentTrack.info.sampleRate=Fr(e,he);break;case yr.Channels:if("audio"!==(null==(K=null==(j=this.currentTrack)?void 0:j.info)?void 0:K.type))break;this.currentTrack.info.numberOfChannels=xr(e,he);break;case yr.BitDepth:if("audio"!==(null==($=null==(X=this.currentTrack)?void 0:X.info)?void 0:$.type))break;this.currentTrack.info.bitDepth=xr(e,he);break;case yr.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(fe,he)),this.currentCueTime=null;break;case yr.CueTime:this.currentCueTime=xr(e,he);break;case yr.CueTrackPositions:{if(null===this.currentCueTime)break;S(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(fe,he)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case yr.CueTrack:{const t=null==(G=this.currentSegment)?void 0:G.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=xr(e,he)}break;case yr.CueClusterPosition:{const t=null==(Q=this.currentSegment)?void 0:Q.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;S(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+xr(e,he)}break;case yr.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=xr(e,he);break;case yr.SimpleBlock:{if(!this.currentCluster)break;const t=Ir(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=Uo(e),n=No(e),s=n>>1&3;let a=!!(128&n);"audio"===(null==(Y=i.track.info)?void 0:Y.type)&&i.track.info.codec&&(a=!0);const o=Mo(e,he-(e.filePos-fe)),l=i.track.decodingInstructions.length>0;i.blocks.push({timestamp:r,duration:0,isKeyFrame:a,data:o,lacing:s,decoded:!l,postProcessed:!1,mainAdditional:null})}break;case yr.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(fe,he)),this.currentBlock=null;break;case yr.Block:{if(!this.currentCluster)break;const t=Ir(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=Uo(e),n=No(e)>>1&3,s=Mo(e,he-(e.filePos-fe)),a=i.track.decodingInstructions.length>0;this.currentBlock={timestamp:r,duration:0,isKeyFrame:!0,data:s,lacing:n,decoded:!a,postProcessed:!1,mainAdditional:null},i.blocks.push(this.currentBlock)}break;case yr.BlockAdditions:this.readContiguousElements(e.slice(fe,he));break;case yr.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(fe,he)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case yr.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=Mo(e,he);break;case yr.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=xr(e,he);break;case yr.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=xr(e,he);break;case yr.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case yr.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(fe,he));break;case yr.Targets:this.readContiguousElements(e.slice(fe,he));break;case yr.TargetTypeValue:50!==xr(e,he)&&(this.currentTagTargetIsMovie=!1);break;case yr.TagTrackUID:case yr.TagEditionUID:case yr.TagChapterUID:case yr.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case yr.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(fe,he));break;case yr.TagName:this.currentSimpleTagName=Rr(e,he);break;case yr.TagString:{if(!this.currentSimpleTagName)break;const t=Rr(e,he);this.processTagValue(this.currentSimpleTagName,t)}break;case yr.TagBinary:{if(!this.currentSimpleTagName)break;const t=Mo(e,he);this.processTagValue(this.currentSimpleTagName,t)}break;case yr.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(fe,he));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(null!=t.raw||(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new qe(this.currentAttachedFile.fileData,null!=(J=this.currentAttachedFile.fileMediaType)?J:void 0,null!=(Z=this.currentAttachedFile.fileName)?Z:void 0,null!=(ee=this.currentAttachedFile.fileDescription)?ee:void 0)),(null==(te=this.currentAttachedFile.fileMediaType)?void 0:te.startsWith("image/"))&&this.currentAttachedFile.fileData){const e=this.currentAttachedFile.fileName;let i="unknown";if(e){const t=e.toLowerCase();t.startsWith("cover.")?i="coverFront":t.startsWith("back.")&&(i="coverBack")}null!=t.images||(t.images=[]),t.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:i,name:null!=(ie=this.currentAttachedFile.fileName)?ie:void 0,description:null!=(ne=this.currentAttachedFile.fileDescription)?ne:void 0})}this.currentAttachedFile=null}break;case yr.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=((e,t)=>{if(t<1)throw new Error("Bad unsigned int size "+t);let i=BigInt("0");for(let r=0;rt.order-e.order);break;case yr.ContentEncoding:this.currentDecodingInstruction={order:0,scope:Jr.Block,data:null},this.readContiguousElements(e.slice(fe,he)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case yr.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=xr(e,he);break;case yr.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=xr(e,he);break;case yr.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:en.Zlib,settings:null},this.readContiguousElements(e.slice(fe,he));break;case yr.ContentCompAlgo:if("decompress"!==(null==(ae=null==(se=this.currentDecodingInstruction)?void 0:se.data)?void 0:ae.type))break;this.currentDecodingInstruction.data.algorithm=xr(e,he);break;case yr.ContentCompSettings:if("decompress"!==(null==(le=null==(oe=this.currentDecodingInstruction)?void 0:oe.data)?void 0:le.type))break;this.currentDecodingInstruction.data.settings=Mo(e,he);break;case yr.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=fe+he,!0}decodeBlockData(e,t){S(e.decodingInstructions.length>0);let i=t;for(const r of e.decodingInstructions)if(S(r.data),"decompress"===r.data.type)if(r.data.algorithm===en.HeaderStripping)if(r.data.settings&&r.data.settings.length>0){const e=r.data.settings,t=new Uint8Array(e.length+i.length);t.set(e,0),t.set(i,e.length),i=t}return i}processTagValue(e,t){var i,r;if(!(null==(i=this.currentSegment)?void 0:i.metadataTags))return;const n=this.currentSegment.metadataTags;if(null!=n.raw||(n.raw={}),null!=(r=n.raw)[e]||(r[e]=t),"string"===typeof t)switch(e.toLowerCase()){case"title":null!=n.title||(n.title=t);break;case"description":null!=n.description||(n.description=t);break;case"artist":null!=n.artist||(n.artist=t);break;case"album":null!=n.album||(n.album=t);break;case"album_artist":null!=n.albumArtist||(n.albumArtist=t);break;case"genre":null!=n.genre||(n.genre=t);break;case"comment":null!=n.comment||(n.comment=t);break;case"lyrics":null!=n.lyrics||(n.lyrics=t);break;case"date":{const e=new Date(t);Number.isNaN(e.getTime())||null!=n.date||(n.date=e)}break;case"track_number":case"part_number":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.trackNumber||(n.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.tracksTotal||(n.tracksTotal=r))}break;case"disc_number":case"disc":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.discNumber||(n.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.discsTotal||(n.discsTotal=r))}}}getDurationFromMetadata(e){return p(this,null,function*(){if(e.duration<=0)return null;let t=null;for(const r of e.tracks){S(r.trackBacking);const e=yield r.trackBacking.getFirstPacket({metadataOnly:!0});e&&(t=Math.min(null!=t?t:1/0,e.timestamp))}let i=e.duration/e.timestampFactor;return i+=null!=t?t:0,i})}}class an{constructor(e){this.internalTrack=e,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.segments)for(const e of r.tracks)if(e.trackBacking.getType()===t&&i++,e===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return p(this,null,function*(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)})}getLiveRefreshInterval(){return p(this,null,function*(){return null})}getFirstPacket(e){return p(this,null,function*(){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,e)})}intoTimescale(e){return ne(e*this.internalTrack.segment.timestampFactor)}getPacket(e,t){return p(this,null,function*(){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=K(t.presentationTimestamps,i,e=>e.timestamp);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id);if(i.blockIndex+1{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=Y(t.presentationTimestamps,e=>t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=i);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id).blocks.findIndex((e,t)=>e.isKeyFrame&&t>i.blockIndex);if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.blocks.findIndex(e=>e.isKeyFrame);return S(-1!==e),{blockIndex:e,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)})}fetchPacketInCluster(e,t,i){return p(this,null,function*(){var r,n;if(-1===t)return null;const s=e.trackData.get(this.internalTrack.id).blocks[t];if(S(s),s.decoded||(s.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,s.data),s.decoded=!0),!s.postProcessed){if("prores"===(null==(r=this.internalTrack.info)?void 0:r.codec)){if(!(s.data.length>=8&&105===s.data[4]&&99===s.data[5]&&112===s.data[6]&&102===s.data[7])){const e=new Uint8Array(s.data.length+8);E(e).setUint32(0,e.length,!1),e[4]=105,e[5]=99,e[6]=112,e[7]=102,e.set(s.data,8),s.data=e}}s.postProcessed=!0}const a=i.metadataOnly?Di:s.data,o=s.timestamp/this.internalTrack.segment.timestampFactor,l=s.duration/this.internalTrack.segment.timestampFactor,c={};s.mainAdditional&&"video"===(null==(n=this.internalTrack.info)?void 0:n.type)&&this.internalTrack.info.alphaMode&&(c.alpha=i.metadataOnly?Di:s.mainAdditional,c.alphaByteLength=s.mainAdditional.byteLength);const u=new Mi(a,s.isKeyFrame?"key":"delta",o,l,e.dataStartPos+t,s.data.byteLength,c);return this.packetToClusterLocation.set(u,{cluster:e,blockIndex:t}),u})}performClusterLookup(e,t,i,r,n){return p(this,null,function*(){var s,a,o,l;const{demuxer:c,segment:u}=this.internalTrack;let d=null,h=null,f=-1;if(e){const{blockIndex:i,correctBlockFound:r}=t(e);if(r)return this.fetchPacketInCluster(e,i,n);-1!==i&&(h=e,f=i)}const m=K(this.internalTrack.cuePoints,i,e=>e.time),p=-1!==m?this.internalTrack.cuePoints[m]:null,g=K(this.internalTrack.clusterPositionCache,i,e=>e.startTimestamp),k=-1!==g?this.internalTrack.clusterPositionCache[g]:null,y=Math.max(null!=(s=null==p?void 0:p.clusterPosition)?s:0,null!=(a=null==k?void 0:k.elementStartPos)?a:0)||null;let b;for(e?null===y||e.elementStartPos>=y?(b=e.elementEndPos,d=e):b=y:b=null!=y?y:u.clusterSeekStartPos;null===u.elementEndPos||b<=u.elementEndPos-2;){if(d){const e=d.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=c.reader.requestSliceRange(b,2,wr);if(Pe(e)&&(e=yield e),!e)break;const i=b,s=Er(e);if(!s||!vr.includes(s.id)&&s.id!==yr.Void){const e=yield Dr(c.reader,i,vr,Math.min(null!=(o=u.elementEndPos)?o:1/0,i+nn));if(e){b=e;continue}break}const a=s.id;let l=s.size;const m=e.filePos;if(a===yr.Cluster){d=yield c.readCluster(i,u),l=d.elementEndPos-m;const{blockIndex:e,correctBlockFound:r}=t(d);if(r)return this.fetchPacketInCluster(d,e,n);-1!==e&&(h=d,f=e)}if(void 0===l){S(a!==yr.Cluster);l=(yield Ar(c.reader,m,Sr,u.elementEndPos)).pos-m}const p=m+l;if(null===u.elementEndPos){let e=c.reader.requestSliceRange(p,2,wr);if(Pe(e)&&(e=yield e),!e)break;if(Cr(e)===yr.Segment){u.elementEndPos=p;break}}b=p}if(p&&(!h||h.elementStartPosp(this,null,function*(){var e,t,i,r,n;let s=null;("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"prores"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription)&&(s=yield this.getFirstPacket({}));const a={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:"avc"===this.internalTrack.info.codec&&s?ct(s.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&s?bt(s.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&s?Rt(s.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&s?At(s.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&s?Dt(s.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!L(this.internalTrack.info.colorSpace)){const n=ki(a);null!=(e=this.internalTrack.info.colorSpace).primaries||(e.primaries=n.primaries),null!=(t=this.internalTrack.info.colorSpace).transfer||(t.transfer=n.transfer),null!=(i=this.internalTrack.info.colorSpace).matrix||(i.matrix=n.matrix),null!=(r=this.internalTrack.info.colorSpace).fullRange||(r.fullRange=n.fullRange)}const o={codec:gi(a),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(n=this.internalTrack.info.codecDescription)?n:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class ln extends an{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return p(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>p(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&ri(e.data)}return{codec:yi({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const cn=(e,t,i,r=null)=>p(null,null,function*(){const n=c(2,16);let s=t;for(;null===i||s=4;){const t=a.filePos,i=Wo(a),n=null!==e.fileSize?e.fileSize-s:null,o=Bi(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&Fi(o.header.channel)===Fi(r.channel)))return{header:o.header,startPos:s};a.filePos=t+o.bytesAdvanced,s=a.filePos}}return null});class un extends Ai{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.xingFrameHeader=null,this.xingFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new q,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return p(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>p(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new dn(this)]}))()})}advanceReader(){return p(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,nl);if(Pe(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=ll(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=yield cn(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e)return void(this.lastSampleLoaded=!0);const t=e.header;this.lastLoadedPos=e.startPos+t.totalSize-1;const i=Ci(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(Pe(r)&&(r=yield r),r){const n=Wo(r);if(n===Ii||n===xi){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(Pe(t)&&(t=yield t),t){const e=Mo(t,12),i=E(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&_i.FrameCount?i.getUint32(4,!1):null,fileSize:r&_i.FileSize?i.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=t,this.firstFrameHeaderPos=e.startPos);const n=t.audioSamplesInFrame/this.firstFrameHeader.sampleRate,s={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:n,dataStart:e.startPos,dataSize:t.totalSize};this.loadedSamples.push(s),this.nextTimestampInSamples+=t.audioSamplesInFrame})}getMimeType(){return p(this,null,function*(){return"audio/mpeg"})}getTrackBackings(){return p(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return p(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0,t=!1;for(;;){let i=this.reader.requestSlice(e,nl);if(Pe(i)&&(i=yield i),!i)break;const r=ll(i);if(!r)break;t=!0;let n=this.reader.requestSlice(i.filePos,r.size);if(Pe(n)&&(n=yield n),!n)break;cl(n,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=rl){let e=this.reader.requestSlice(this.reader.fileSize-rl,rl);Pe(e)&&(e=yield e),S(e);"TAG"===Yo(e,3)&&al(e,this.metadataTags)}return this.metadataTags}finally{e()}})}}class dn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return S(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return p(this,null,function*(){const e=this.demuxer;if(S(null!==e.firstFrameHeader),S(null!==e.firstFrameHeaderPos),e.xingData){if(null!==e.xingData.frameCount)return e.xingData.frameCount*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}else if(null!==e.reader.fileSize){const s=(t=e.firstFrameHeader.lowSamplingFrequency,i=e.firstFrameHeader.layer,r=e.firstFrameHeader.bitrate,n=e.firstFrameHeader.sampleRate,0===i?0:1===i?144*r/(n<e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return p(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=K(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1>>0&4294967295}const mn=e=>{const t=E(e),i=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let n=0;n>>24^t])>>>0}return t.setUint32(22,i,!0),r},pn=(e,t,i)=>{let r=0,n=null;if(e.length>0)if("vorbis"===t.codec){S(t.vorbisInfo);const s=(1<<(e=>{let t=0;for(;e;)t++,e>>=1;return t})(t.vorbisInfo.modeBlockflags.length-1))-1<<1,a=(e[0]&s)>>1;if(a>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let o=i;const l=t.vorbisInfo.modeBlockflags[a];if(n=t.vorbisInfo.blocksizes[l],1===l){const i=1+(1|s),r=e[0]&i?1:0;o=t.vorbisInfo.blocksizes[r]}r=null!==o?o+n>>2:0}else if("opus"===t.codec){r=(e=>{const t=e[0]>>3,i=3&e[0];let r;return r=0===i?1:1===i||2===i?2:63&e[1],{durationInSamples:Mt[t]*r}})(e).durationInSamples}return{durationInSamples:r,vorbisBlockSize:n}},gn=27,kn=282,yn=e=>{const t=e.filePos;if(Ho(e)!==hn)return null;e.skip(1);const i=No(e),r=$o(e),n=Ho(e),s=Ho(e),a=Ho(e),o=No(e),l=new Uint8Array(o);for(let d=0;de+t,0);return{headerStartPos:t,totalSize:c+u,dataStartPos:t+c,dataSize:u,headerType:i,granulePosition:r,serialNumber:n,sequenceNumber:s,checksum:a,lacingValues:l}},bn=(e,t)=>{for(;e.filePos>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===hn)return!0;e.skip(1)}}return!1};class Tn extends Ai{constructor(e){super(e),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=e._reader}readMetadata(){return p(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>p(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,gn,kn);if(Pe(t)&&(t=yield t),!t)break;const i=yn(t);if(!i)break;if(!!!(2&i.headerType))break;this.bitstreams.push({serialNumber:i.serialNumber,bosPage:i,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=i.headerStartPos+i.totalSize}for(const t of this.bitstreams){const e=yield this.readPacket(t.bosPage,0);e&&(e.data.byteLength>=7&&1===e.data[0]&&118===e.data[1]&&111===e.data[2]&&114===e.data[3]&&98===e.data[4]&&105===e.data[5]&&115===e.data[6]?yield this.readVorbisMetadata(e,t):e.data.byteLength>=8&&79===e.data[0]&&112===e.data[1]&&117===e.data[2]&&115===e.data[3]&&72===e.data[4]&&101===e.data[5]&&97===e.data[6]&&100===e.data[7]&&(yield this.readOpusMetadata(e,t)),null!==t.codecInfo.codec&&this.trackBackings.push(new vn(t,this)))}}))()})}readVorbisMetadata(e,t){return p(this,null,function*(){let i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;if(i=yield this.findNextPacketStart(r),!i)return;const n=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!n)return;if(3!==r.data[0]||5!==n.data[0])return;const s=[],a=e=>{for(;s.push(Math.min(255,e)),!(e<255);)e-=255};a(e.data.length),a(r.data.length);const o=new Uint8Array(1+s.length+e.data.length+r.data.length+n.data.length);o[0]=2,o.set(s,1),o.set(e.data,1+s.length),o.set(r.data,1+s.length+e.data.length),o.set(n.data,1+s.length+e.data.length+r.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=n;const l=E(e.data);t.numberOfChannels=l.getUint8(11),t.sampleRate=l.getUint32(12,!0);const c=l.getUint8(28);t.codecInfo.vorbisInfo={blocksizes:[1<<(15&c),1<<(c>>4)],modeBlockflags:Nt(n.data).modeBlockflags},Ut(r.data.subarray(7),this.metadataTags)})}readOpusMetadata(e,t){return p(this,null,function*(){const i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=r;const n=(e=>{const t=E(e),i=t.getUint8(9),r=t.getUint16(10,!0),n=t.getUint32(12,!0),s=t.getInt16(16,!0),a=t.getUint8(18);let o=null;return a&&(o=e.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:n,outputGain:s,channelMappingFamily:a,channelMappingTable:o}})(e.data);t.numberOfChannels=n.outputChannelCount,t.sampleRate=bi,t.codecInfo.opusInfo={preSkip:n.preSkip},Ut(r.data.subarray(8),this.metadataTags)})}readPacket(e,t){return p(this,null,function*(){S(te+t.length,0);if(0===o)return null;const l=new Uint8Array(o);let c=0;for(let e=0;e{let t="audio/ogg";e.codecStrings&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({codecStrings:(yield Promise.all(this.trackBackings.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})))).filter(Boolean)})})}getTrackBackings(){return p(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return p(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}class vn{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new q,this.internalSampleRate="opus"===e.codecInfo.codec?bi:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return S(-1!==e),e+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return p(this,null,function*(){return null})}getLiveRefreshInterval(){return p(this,null,function*(){return null})}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}getDecoderConfig(){return p(this,null,function*(){var e;return S(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:null!=(e=this.bitstream.description)?e:void 0}})}getName(){return null}getLanguageCode(){return re}getDisposition(){return h(d({},We),{primary:!1})}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(S(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:n}=pn(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new Mi(i.metadataOnly?Di:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,r/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:r,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:n}),s}getFirstPacket(e){return p(this,null,function*(){S(this.bitstream.lastMetadataPacket);const t=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let i=0;"opus"===this.bitstream.codecInfo.codec&&(S(this.bitstream.codecInfo.opusInfo),i-=this.bitstream.codecInfo.opusInfo.preSkip);const r=yield this.demuxer.readPacket(t.startPage,t.startSegmentIndex);return this.createEncodedPacketFromOggPacket(r,{timestampInSamples:i,vorbisLastBlocksize:null},e)})}getNextPacket(e,t){return p(this,null,function*(){const i=this.encodedPacketToMetadata.get(e);if(!i)throw new Error("Packet was not created from this track.");const r=yield this.demuxer.findNextPacketStart(i.packet);if(!r)return null;const n=i.timestampInSamples+i.durationInSamples,s=yield this.demuxer.readPacket(r.startPage,r.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:n,vorbisLastBlocksize:i.vorbisBlockSize},t)})}getPacket(e,t){return p(this,null,function*(){var i,r;if(null===this.demuxer.reader.fileSize)return this.getPacketSequential(e,t);const n=ne(e*this.internalSampleRate);if(0===n)return this.getFirstPacket(t);if(n<0)return null;S(this.bitstream.lastMetadataPacket);const s=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!s)return null;let a=s.startPage,o=this.demuxer.reader.fileSize;const l=[a];e:for(;a.headerStartPos+a.totalSizen?o=c.headerStartPos:(a=c,l.push(c));continue e}i=c.headerStartPos+c.totalSize}}let c=s.startPage;for(const e of l){if(e.granulePosition===a.granulePosition)break;(!c||e.headerStartPos>c.headerStartPos)&&(c=e)}let u=c;const d=[u];for(;u.serialNumber!==this.bitstream.serialNumber||u.granulePosition!==a.granulePosition;){const e=u.headerStartPos+u.totalSize;let t=this.demuxer.reader.requestSliceRange(e,gn,kn);Pe(t)&&(t=yield t),S(t);const i=yn(t);S(i),u=i,u.serialNumber===this.bitstream.serialNumber&&d.push(u)}S(-1!==u.granulePosition);let h,f,m=null,p=u,g=0;if(u.headerStartPos===s.startPage.headerStartPos)h=this.granulePositionToTimestampInSamples(0),f=!0,m=0;else{h=0,f=!1;for(let t=u.lacingValues.length-1;t>=0;t--){if(u.lacingValues[t]<255){m=t+1;break}}if(null===m)throw new Error("Invalid page with granule position: no packets end on this page.");g=m-1;const e={data:Di,endPage:p,endSegmentIndex:g};if(yield this.demuxer.findNextPacketStart(e)){const e=wn(d,u,m);S(e);const t=Sn(d,e.page,e.segmentIndex);t&&(u=t.page,m=t.segmentIndex)}else for(;;){const e=wn(d,u,m);if(!e)break;const t=Sn(d,e.page,e.segmentIndex);if(!t)break;if(u=t.page,m=t.segmentIndex,e.page.headerStartPos!==p.headerStartPos){p=e.page,g=e.segmentIndex;break}}}let k=null,y=null;for(;null!==u;){S(null!==m);const e=yield this.demuxer.readPacket(u,m);if(!e)break;if(!(u.headerStartPos===s.startPage.headerStartPos&&mn||Math.max(a.timestampInSamples,0)===n))break}const a=yield this.demuxer.findNextPacketStart(e);if(!a)break;u=a.startPage,m=a.startSegmentIndex}return k})}getPacketSequential(e,t){return p(this,null,function*(){const i=yield this.sequentialScanMutex.acquire();try{const i=ne(e*this.internalSampleRate);e=i/this.internalSampleRate;const r=K(this.sequentialScanCache,i,e=>e.timestampInSamples);let n;if(-1!==r){const e=this.sequentialScanCache[r];n=this.createEncodedPacketFromOggPacket(e.packet,{timestampInSamples:e.timestampInSamples,vorbisLastBlocksize:e.vorbisLastBlockSize},t)}else n=yield this.getFirstPacket(t);let s=0;for(;n&&n.timestampe)break;if(n=i,s++,100===s){s=0;const e=this.encodedPacketToMetadata.get(n);S(e),this.sequentialScanCache.length>0&&S(P(this.sequentialScanCache).timestampInSamples<=e.timestampInSamples),this.sequentialScanCache.push(e)}}return n}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Sn=(e,t,i)=>{let r=t,n=i;e:for(;;){for(n--;n>=0;n--){if(r.lacingValues[n]<255){n++;break e}}S(-1===n);if(!(1&r.headerType)){n=0;break}const t=Q(e,e=>e.headerStartPos{if(i>0)return{page:t,segmentIndex:i-1};const r=Q(e,e=>e.headerStartPosp(this,null,function*(){var e,t;let i=this.reader.requestSlice(0,12);Pe(i)&&(i=yield i),S(i);const r=Yo(i,4),n="RIFX"!==r,s="RF64"===r,a=qo(i,n);let o=s?this.reader.fileSize:Math.min(a+8,null!=(e=this.reader.fileSize)?e:1/0);if("WAVE"!==Yo(i,4))throw new Error("Invalid WAVE file - wrong format");let l=0,c=null,u=i.filePos;for(;null===o||u=18&&357!==n){const e=Oo(r,i),s=t-18;if(Math.min(s,e)>=22&&n===Pn.EXTENSIBLE){r.skip(6);const e=Mo(r,16);n=e[0]|e[1]<<8}}if(n!==Pn.MULAW&&n!==Pn.ALAW||(l=8),n!==Pn.PCM&&n!==Pn.IEEE_FLOAT&&n!==Pn.ALAW&&n!==Pn.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${n}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(n===Pn.PCM&&![8,16,24,32].includes(l))throw new Error(`Unsupported WAVE PCM bit depth (${l}). Only 8, 16, 24, and 32 bits are supported.`);if(n===Pn.IEEE_FLOAT&&![32,64].includes(l))throw new Error(`Unsupported WAVE float bit depth (${l}). Only 32 and 64 bits are supported.`);this.audioInfo={format:n,numberOfChannels:s,sampleRate:a,sampleSizeInBytes:Math.ceil(l/8),blockSizeInBytes:o}})}parseListChunk(e,t,i){return p(this,null,function*(){var r,n,s,a,o,l,c,u,d,h,f;let m=this.reader.requestSlice(e,t);if(Pe(m)&&(m=yield m),!m)return;const p=Yo(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=Yo(m,4),t=qo(m,i),p=Mo(m,t);let k=0;for(let i=0;i0&&(null!=(l=this.metadataTags).trackNumber||(l.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(c=this.metadataTags).tracksTotal||(c.tracksTotal=i))}break;case"ICRD":case"IDIT":{const e=new Date(y);Number.isNaN(e.getTime())||null!=(u=this.metadataTags).date||(u.date=e)}break;case"YEAR":{const e=Number.parseInt(y,10);Number.isInteger(e)&&e>0&&(null!=(d=this.metadataTags).date||(d.date=new Date(e,0,1)))}break;case"IGNR":case"GENR":null!=(h=this.metadataTags).genre||(h.genre=y);break;case"ICMT":case"CMNT":case"COMM":null!=(f=this.metadataTags).comment||(f.comment=y)}g+=8+t+(1&t)}})}parseId3Chunk(e,t){return p(this,null,function*(){let i=this.reader.requestSlice(e,t);if(Pe(i)&&(i=yield i),!i)return;const r=ll(i);if(r){const n=t-nl;if(r.size=Math.min(r.size,n),r.size>0){const t=i.slice(e+nl,r.size);cl(t,r,this.metadataTags)}}})}getCodec(){if(S(this.audioInfo),this.audioInfo.format===Pn.MULAW)return"ulaw";if(this.audioInfo.format===Pn.ALAW)return"alaw";if(this.audioInfo.format===Pn.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}if(this.audioInfo.format===Pn.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}S(!1)}getMimeType(){return p(this,null,function*(){return"audio/wav"})}getTrackBackings(){return p(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return p(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}const Cn=2048;class Bn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return S(this.demuxer.audioInfo),this.demuxer.audioInfo.format}getDecoderConfig(){return p(this,null,function*(){const e=this.demuxer.getCodec();return e?(S(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null})}getNumberOfChannels(){return S(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return S(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return S(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return p(this,null,function*(){return S(-1!==this.demuxer.dataSize),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return p(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return re}getDisposition(){return d({},We)}getPacketAtIndex(e,t){return p(this,null,function*(){S(e>=0),S(this.demuxer.audioInfo);const i=e*Cn*this.demuxer.audioInfo.blockSizeInBytes;if(i>=this.demuxer.dataSize)return null;const r=Math.min(Cn*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-i);if(null===this.demuxer.reader.fileSize){let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);if(Pe(e)&&(e=yield e),!e)return null}let n;if(t.metadataOnly)n=Di;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);Pe(e)&&(e=yield e),S(e),n=Mo(e,r)}const s=e*Cn/this.demuxer.audioInfo.sampleRate,a=r/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(e,this.demuxer.lastKnownPacketIndex),new Mi(n,"key",s,a,e,r)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getPacket(e,t){return p(this,null,function*(){S(this.demuxer.audioInfo);const i=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/Cn,(this.demuxer.dataSize-1)/(Cn*this.demuxer.audioInfo.blockSizeInBytes)));if(i<0)return null;const r=yield this.getPacketAtIndex(i,t);if(r)return r;if(0===i)return null;S(null===this.demuxer.reader.fileSize);let n=yield this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,t);for(;n;){const e=yield this.getNextPacket(n,t);if(!e)break;n=e}return n})}getNextPacket(e,t){S(this.demuxer.audioInfo);const i=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/Cn);return this.getPacketAtIndex(i+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const En=e=>{const t=e.filePos,i=Mo(e,9),r=new He(i);if(4095!==r.readBits(12))return null;r.skipBits(1);if(0!==r.readBits(2))return null;const n=r.readBits(1),s=r.readBits(2)+1,a=r.readBits(4);if(15===a)return null;r.skipBits(1);const o=r.readBits(3);if(0===o)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const l=r.readBits(13);r.skipBits(11);const c=r.readBits(2)+1;if(1!==c)throw new Error("ADTS frames with more than one AAC frame are not supported.");let u=null;return 1===n?e.filePos-=2:u=r.readBits(16),{objectType:s,samplingFrequencyIndex:a,channelConfiguration:o,frameLength:l,numberOfAacFrames:c,crcCheck:u,startPos:t}},_n=1024;class Rn extends Ai{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new q,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return p(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>p(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();S(this.firstFrameHeader),this.trackBackings=[new Fn(this)]}))()})}advanceReader(){return p(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,nl);if(Pe(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=ll(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(Pe(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=En(e);if(!t)return void(this.lastSampleLoaded=!0);if(null!==this.reader.fileSize&&t.startPos+t.frameLength>this.reader.fileSize)return void(this.lastSampleLoaded=!0);this.firstFrameHeader||(this.firstFrameHeader=t);const i=Ve[t.samplingFrequencyIndex];S(void 0!==i);const r=_n/i,n={timestamp:this.nextTimestampInSamples/i,duration:r,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(n),this.nextTimestampInSamples+=_n,this.lastLoadedPos=t.startPos+t.frameLength})}getMimeType(){return p(this,null,function*(){return"audio/aac"})}getTrackBackings(){return p(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return p(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0;for(;;){let t=this.reader.requestSlice(e,nl);if(Pe(t)&&(t=yield t),!t)break;const i=ll(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(Pe(r)&&(r=yield r),!r)break;cl(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}})}}class Fn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/_n}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return p(this,null,function*(){return null})}getLiveRefreshInterval(){return p(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return re}getCodec(){return"aac"}getInternalCodecId(){return S(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){S(this.demuxer.firstFrameHeader);const e=je[this.demuxer.firstFrameHeader.channelConfiguration];return S(void 0!==e),e}getSampleRate(){S(this.demuxer.firstFrameHeader);const e=Ve[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return S(void 0!==e),e}getDisposition(){return d({},We)}getDecoderConfig(){return p(this,null,function*(){return S(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}})}getPacketAtIndex(e,t){return p(this,null,function*(){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=Di;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(Pe(e)&&(e=yield e),!e)return null;r=Mo(e,i.dataSize)}return new Mi(r,"key",i.timestamp,i.duration,e,i.dataSize)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getNextPacket(e,t){return p(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=j(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return p(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=K(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1p(this,null,function*(){var e;let t=0;for(;;){let e=this.reader.requestSlice(t,nl);if(Pe(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const i=ll(e);if(!i)break;let r=this.reader.requestSlice(e.filePos,i.size);Pe(r)&&(r=yield r),S(r),cl(r,i,this.metadataTags),t=e.filePos+i.size}for(t+=4;null===this.reader.fileSize||ts.end-6)return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:s.end-e,isLastFrame:!0};if(255===No(s)){const t=s.filePos;if(No(s)!==(1===this.blockingBit?249:248)){s.filePos=t;continue}s.skip(-2);const i=s.filePos-e,r=this.readFlacFrameHeader({slice:s,isFirstPacket:!1});if(!r){s.filePos=t;continue}if(0===this.blockingBit){if(r.num-a.num!==1){s.filePos=t;continue}}else if(r.num-a.num!==a.blockSize){s.filePos=t;continue}return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:i,isLastFrame:!1}}}})}readFlacFrameHeader({slice:e,isFirstPacket:t}){const i=e.filePos,r=Mo(e,4),n=new He(r);if(32764!==n.readBits(15))return null;if(null===this.blockingBit){S(t);const e=n.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){S(!t);if(1!==n.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");S(!t);if(0!==n.readBits(1))return null}const s=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*c(2,e):6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?c(2,e):null)(n.readBits(4));if(!s)return null;S(this.audioInfo);const a=((e,t)=>{switch(e){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}})(n.readBits(4),this.audioInfo.sampleRate);if(!a)return null;n.readBits(4),n.readBits(3);if(0!==n.readBits(1))return null;const o=(e=>{let t=0;const i=new He(Mo(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],n=t-1,s=new He(Mo(e,n)),a=8-t-1;for(let o=0;oe|t<"uncommon-u16"===t?Lo(e)+1:"uncommon-u8"===t?No(e)+1:"number"===typeof t?t:(J(t),void S(!1)))(e,s),u=((e,t)=>"uncommon-u16"===t?Lo(e):"uncommon-u16-10"===t?10*Lo(e):"uncommon-u8"===t?No(e):"number"===typeof t?t:null)(e,a);if(null===u)return null;if(u!==this.audioInfo.sampleRate)return null;const d=e.filePos-i,h=No(e);e.skip(-d),e.skip(-1);const f=(e=>{let t=0;for(const i of e){t^=i;for(let e=0;e<8;e++)0!==(128&t)?t=t<<1^7:t<<=1,t&=255}return t})(Mo(e,d));return h!==f?null:{num:o,blockSize:l,sampleRate:u}}advanceReader(){return p(this,null,function*(){yield this.readMetadata(),S(null!==this.lastLoadedPos),S(this.audioInfo);const e=this.lastLoadedPos,t=yield this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length});if(!t)return void(this.lastSampleLoaded=!0);const i=this.loadedSamples[this.loadedSamples.length-1],r={blockOffset:i?i.blockOffset+i.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size};this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(r),t.isLastFrame&&(this.lastSampleLoaded=!0)})}}class Dn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return S(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return S(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return re}getTimeResolution(){return S(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return p(this,null,function*(){return S(this.demuxer.audioInfo),0===this.demuxer.audioInfo.totalSamples?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return p(this,null,function*(){return null})}getDisposition(){return d({},We)}getDecoderConfig(){return p(this,null,function*(){return S(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}})}getPacket(e,t){return p(this,null,function*(){if(S(this.demuxer.audioInfo),e<0)return null;const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=K(this.demuxer.loadedSamples,e,e=>e.blockOffset/this.demuxer.audioInfo.sampleRate);if(-1===i){yield this.demuxer.advanceReader();continue}const r=this.demuxer.loadedSamples[i],n=r.blockOffset/this.demuxer.audioInfo.sampleRate;if(!(n+r.blockSize/this.demuxer.audioInfo.sampleRate<=e))return this.getPacketAtIndex(i,t);if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t);yield this.demuxer.advanceReader()}}finally{i()}})}getNextPacket(e,t){return p(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=e.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&i>=this.demuxer.loadedSamples.length)return null;for(;i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(i,t)}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}getPacketAtIndex(e,t){return p(this,null,function*(){const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=Di;else{let e=this.demuxer.reader.requestSlice(i.byteOffset,i.byteSize);if(Pe(e)&&(e=yield e),!e)return null;r=Mo(e,i.byteSize)}S(this.demuxer.audioInfo);const n=i.blockOffset/this.demuxer.audioInfo.sampleRate,s=i.blockSize/this.demuxer.audioInfo.sampleRate;return new Mi(r,"key",n,s,e,i.byteSize)})}getFirstPacket(e){return p(this,null,function*(){for(;0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(0,e)})}}const Mn=9e4,Nn=c(2,33),On=188,Ln="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",zn=new Set([133,134,162]),Un=new Set;class qn extends Ai{constructor(e){super(e),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5242880,this.minReferencePointByteDistance=-1,this.timestampWrapInfo=null,this.reader=e._reader}readMetadata(){return p(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>p(this,null,function*(){let e=this.reader.requestSlice(0,205);Pe(e)&&(e=yield e),S(e);const t=Mo(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=On;else if(71===t[0]&&71===t[204])this.packetOffset=0,this.packetStride=204;else{if(71!==t[4]||71!==t[196])throw new Error("Unreachable.");this.packetOffset=4,this.packetStride=192}this.minReferencePointByteDistance=256*this.packetStride;let i=this.packetOffset,r=null,n=!1,s=!1;for(;;){const e=yield this.readPacketHeader(i);if(!e)break;if(0===e.payloadUnitStartIndicator){i+=this.packetStride;continue}if(s&&!this.elementaryStreams.some(t=>t.pid===e.pid)){i+=this.packetStride;continue}const t=yield this.readSection(i,!0,!s);if(!t)break;const a=3,o=32;let l=!1;if(!s&&0!==t.pid){if(!(0===t.payload[0]&&0===t.payload[1]&&1===t.payload[2])){const e=new He(t.payload),i=e.readAlignedByte();e.skipBits(8*i);l=2===e.readBits(8)}}if(0!==t.pid||n)if(t.pid!==r&&!l||s){const e=this.elementaryStreams.find(e=>e.pid===t.pid);e:if(e&&!e.initialized){const i=Hn(this,t,!0);if(!i)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${e.pid}`);if(e.firstSection=t,e.canBeTrustedWithKeyPackets=1===t.randomAccessIndicator,this.input._initInput){const i=(yield this.input._initInput._getDemuxer()).elementaryStreams.find(i=>i.pid===t.pid&&i.info.codec===e.info.codec);if(i){e.info=i.info,e.initialized=!0;break e}}const r=new $n(e,i);if("video"===e.info.type){for(;;){if(r.suppliedPacket=null,yield r.markNextPacket(),"avc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(e.info.avcCodecInfo=ct(r.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];S(t);const i=ft(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight;const n=i.pixelAspectRatio.num,s=i.pixelAspectRatio.den;n>0&&s>0&&(n>s?(e.info.squarePixelWidth=Math.round(e.info.width*n/s),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*s/n))),e.info.colorSpace={primaries:A[i.colourPrimaries],transfer:M[i.transferCharacteristics],matrix:O[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}if("hevc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(e.info.hevcCodecInfo=bt(r.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===Ze.SPS_NUT).nalUnits[0];S(t);const i=yt(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight,i.pixelAspectRatio.num>i.pixelAspectRatio.den?(e.info.squarePixelWidth=Math.round(e.info.width*i.pixelAspectRatio.num/i.pixelAspectRatio.den),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*i.pixelAspectRatio.den/i.pixelAspectRatio.num)),e.info.colorSpace={primaries:A[i.colourPrimaries],transfer:M[i.transferCharacteristics],matrix:O[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:gi({width:e.info.width,height:e.info.height,codec:e.info.codec,codecDescription:null,colorSpace:e.info.colorSpace,avcType:1,avcCodecInfo:e.info.avcCodecInfo,hevcCodecInfo:e.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:e.info.width,codedHeight:e.info.height,colorSpace:e.info.colorSpace},e.info.width===e.info.squarePixelWidth&&e.info.height===e.info.squarePixelHeight||(e.info.decoderConfig.displayAspectWidth=e.info.squarePixelWidth,e.info.decoderConfig.displayAspectHeight=e.info.squarePixelHeight),e.initialized=!0}else{if(yield r.markNextPacket(),!r.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${e.pid}`);if("aac"===e.info.codec){const t=Ao.tempFromBytes(r.suppliedPacket.data),i=En(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=je[i.channelConfiguration],e.info.sampleRate=Ve[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=Wo(Ao.tempFromBytes(r.suppliedPacket.data)),i=Bi(t,r.suppliedPacket.data.byteLength);if(!i.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");e.info.numberOfChannels=Fi(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=Wt(r.suppliedPacket.data);if(!t)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(3===t.fscod)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=qt[t.acmod]+t.lfeon,e.info.sampleRate=Ge[t.fscod]}else if("eac3"===e.info.codec){const t=jt(r.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=Kt(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Xt(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=ii(r.suppliedPacket.data);if(!t)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");e.info.numberOfChannels=t.numberOfChannels,e.info.sampleRate=t.sampleRate,t.core&&(e.info.dtsFormat=t.hasExtensions?"dtsh":"dtsc")}}e.info.decoderConfig={codec:yi({codec:e.info.codec,codecDescription:null,aacCodecInfo:e.info.aacCodecInfo,dtsFormat:e.info.dtsFormat}),numberOfChannels:e.info.numberOfChannels,sampleRate:e.info.sampleRate},e.initialized=!0}}}else{const e=new He(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(12);const r=e.readBits(12);e.skipBits(43),e.readBits(13),e.skipBits(6);const n=e.readBits(10),l=e.pos+8*n;let c=!1;for(;e.pos=4){const t=e.readBits(32);c||(c=1212435798===t||1212436562===t)}e.pos=r}for(e.pos=l;8*(r+a)-e.pos>o;){const t=e.readBits(8);e.skipBits(3);const i=e.readBits(13);e.skipBits(6);const r=e.readBits(10),n=e.pos+8*r;let s=!1,a=!1,o=!1;for(;e.pos=4){const t=e.readBits(32);o||(o=1146376960===(4294967040&t))}e.pos=r}let l=null;const u=c&&zn.has(t)?130:t;switch(u){case 27:case 36:l={type:"video",codec:27===t?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let e;e=3===u||4===u?"mp3":15===u?"aac":129===u?"ac3":135===u?"eac3":"dts",l={type:"audio",codec:e,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:a?l={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:s?l={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:o&&(l={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:Un.has(t)||(ze._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),Un.add(t))}l&&this.elementaryStreams.push({demuxer:this,pid:i,streamType:t,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:l,referencePesPackets:[]})}s=!0}else{const e=new He(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(14);const s=e.readBits(10);for(e.skipBits(40);8*(s+a)-e.pos>o;){const t=e.readBits(16);e.skipBits(3);const i=e.readBits(13);if(0!==t){if(null!==r)throw new Error("Only files with a single program are supported.");r=i}}if(null===r)throw new Error("Program Association Table must link to a Program Map Table.");n=!0}if(s&&this.elementaryStreams.every(e=>e.initialized))break;i+=this.packetStride}if(!s){if(!n)throw new Error("No Program Association Table found in the file.");throw new Error("No Program Map Table found in the file.")}for(const a of this.elementaryStreams)a.initialized&&("video"===a.info.type?this.trackBackingEntries.push(new jn(a)):this.trackBackingEntries.push(new Kn(a)))}))()})}getTrackBackings(){return p(this,null,function*(){return yield this.readMetadata(),this.trackBackingEntries})}getMetadataTags(){return p(this,null,function*(){return{}})}getMimeType(){return p(this,null,function*(){yield this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${i.join(", ")}"`),t})(yield Promise.all(this.trackBackingEntries.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null}))))})}readSection(e,t,i=!1){return p(this,null,function*(){let r=e,n=e;const s=[];let a,o=0,l=null,c=!0,u=0;for(;;){const e=yield this.readPacket(n);if(n+=this.packetStride,!e)break;if(l){if(e.pid!==l.pid){if(i)break;continue}if(1===e.payloadUnitStartIndicator)break}else{if(0===e.payloadUnitStartIndicator)break;l=e}const a=!!(2&e.adaptationFieldControl),d=!!(1&e.adaptationFieldControl);let h=0;if(a&&(h=1+e.body[0],e===l&&h>1&&(u=e.body[1]>>6&1)),d&&(0===h?(s.push(e.body),o+=e.body.byteLength):(s.push(e.body.subarray(h)),o+=e.body.byteLength-h)),r=n,!t&&o>=64){c=!1;break}if(-1!==j(this.sectionEndPositions,r,e=>e)){c=!1;break}}if(c){const e=K(this.sectionEndPositions,r,e=>e);this.sectionEndPositions.splice(e+1,0,r)}if(!l)return null;if(1===s.length)a=s[0];else{const e=s.reduce((e,t)=>e+t.length,0);a=new Uint8Array(e);let t=0;for(const i of s)a.set(i,t),t+=i.length}return{startPos:e,endPos:t?r:null,pid:l.pid,payload:a,randomAccessIndicator:u}})}readPacketHeader(e){return p(this,null,function*(){let t=this.reader.requestSlice(e,4);if(Pe(t)&&(t=yield t),!t)return null;if(71!==No(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=Lo(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:No(t)>>4&3}})}readPacket(e){return p(this,null,function*(){let t=this.reader.requestSlice(e,On);if(Pe(t)&&(t=yield t),!t)return null;const i=Mo(t,On);if(71!==i[0])throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const r=(i[1]<<8)+i[2];return{payloadUnitStartIndicator:r>>14&1,pid:8191&r,adaptationFieldControl:i[3]>>4&3,body:i.subarray(4)}})}normalizeTimestamp(e){if(!this.timestampWrapInfo){const t=54e5;this.timestampWrapInfo={reference:e-t,offset:e>=Nn-t?-Nn:Nn}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e{if(t.payload.byteLength<3)return null;const r=new He(t.payload);if(1!==r.readBits(24))return null;const n=r.readBits(8);if(r.skipBits(16),188===n||190===n||191===n||240===n||241===n||255===n||242===n||248===n)return null;r.skipBits(8);const s=r.readBits(2);r.skipBits(14);let a=null;if(2===s||3===s)a=0,r.skipBits(4),a+=r.readBits(3)*(1<<30),r.skipBits(1),a+=32768*r.readBits(15),r.skipBits(1),a+=r.readBits(15),a=e.normalizeTimestamp(a);else if(i)throw new Error(Ln);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:a,randomAccessIndicator:t.randomAccessIndicator}},Hn=(e,t,i)=>{S(null!==t.endPos);const r=Wn(e,t,i);if(!r)return null;const n=new He(t.payload);n.skipBits(32);const s=n.readBits(16);n.skipBits(16);const a=n.readBits(8),o=n.pos+8*a;n.pos=o;const l=o/8;S(Number.isInteger(l));const c=t.payload.subarray(l,s>0?6+s:t.payload.byteLength);return h(d({},r),{data:c})};class Vn{constructor(e){this.elementaryStream=e,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const e=this.elementaryStream.demuxer,t=this.elementaryStream.info.type;let i=0;for(const r of e.trackBackingEntries)if(r.getType()===t&&i++,S(r instanceof Vn),r.elementaryStream===this.elementaryStream)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return re}getDisposition(){return h(d({},We),{primary:!1})}getTimeResolution(){return Mn}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return p(this,null,function*(){return null})}getLiveRefreshInterval(){return p(this,null,function*(){return null})}createEncodedPacket(e,t,i){let r;return r=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new Mi(i.metadataOnly?Di:e.data,r,e.pts/Mn,Math.max(t/Mn,0),e.sequenceNumber,e.data.byteLength)}getFirstPacket(e){return p(this,null,function*(){const t=this.elementaryStream.firstSection;S(t);const i=Hn(this.elementaryStream.demuxer,t,!0);S(i);const r=new $n(this.elementaryStream,i),n=new Gn(this,r),s=yield n.readNext();if(!s)return null;const a=this.createEncodedPacket(s.packet,s.duration,e);return this.packetBuffers.set(a,n),this.packetSectionStarts.set(a,s.packet.sectionStartPos),a})}getNextPacket(e,t){return p(this,null,function*(){let i=this.packetBuffers.get(e);if(i){const r=yield i.readNext();if(!r)return null;this.packetBuffers.delete(e);const n=this.createEncodedPacket(r.packet,r.duration,t);return this.packetBuffers.set(n,i),this.packetSectionStarts.set(n,r.packet.sectionStartPos),n}const r=this.packetSectionStarts.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");const n=this.elementaryStream.demuxer,s=yield n.readSection(r,!0);S(s);const a=Hn(n,s,!0);S(a);const o=new $n(this.elementaryStream,a);i=new Gn(this,o);const l=e.sequenceNumber;for(;;){const e=yield i.readNext();if(!e)return null;if(e.packet.sequenceNumber>l){const r=this.createEncodedPacket(e.packet,e.duration,t);return this.packetBuffers.set(r,i),this.packetSectionStarts.set(r,e.packet.sectionStartPos),r}}})}getNextKeyPacket(e,t){return p(this,null,function*(){let i=e;for(;;){if(i=yield this.getNextPacket(i,t),!i)return null;if("key"===i.type)return i}})}getPacket(e,t){return this.doPacketLookup(e,!1,t)}getKeyPacket(e,t){return this.doPacketLookup(e,!0,t)}doPacketLookup(e,t,i){return p(this,null,function*(){var r,n,s,a,o,l;const c=ne(e*Mn),u=this.elementaryStream.demuxer,{reader:d,seekChunkSize:h}=u,f=this.elementaryStream.pid,m=(e,t,i)=>p(this,null,function*(){let r=e;for(;re.pts),v=-1!==T?b[T]:null;if(v&&c-v.pts<45e3)y=v.sectionStartPos;else{let e=0;if(null!==d.fileSize){const t=Math.ceil(d.fileSize/h);if(t>1){let i=0,r=t-1;for(e=i;i<=r;){const t=Math.floor((i+r)/2),n=oe(t*h,u.packetStride)+k.sectionStartPos,s=n+h,a=yield m(n,s,!1);a?a.pesPacketHeader.pts<=c?(e=t,i=t+1):r=t-1:r=t-1}}}y=oe(e*h,u.packetStride)+k.sectionStartPos}const w=yield m(y,null!=(r=d.fileSize)?r:1/0,!1);let I=null!=(n=null==w?void 0:w.pesPacketHeader)?n:null;I||(I=k);const x=this.getReorderSize(),C=(e,t)=>p(this,null,function*(){var r,n;const s=yield u.readSection(e,!0);S(s);const a=Hn(u,s,!0);S(a);const o=new $n(this.elementaryStream,a),l=new Gn(this,o);for(;;){if((null!=(n=null==(r=P(l.presentationOrderPackets))?void 0:r.pts)?n:-1/0)>=c)break;if(!(yield l.readNextPacket()))break}const d=Y(l.presentationOrderPackets,t);if(-1===d)return null;const h=l.presentationOrderPackets[d],f=0===d?0:h.pts-l.presentationOrderPackets[d-1].pts;for(;l.decodeOrderPackets[0]!==h;)l.decodeOrderPackets.shift();l.lastDuration=f;const m=yield l.readNext();S(m);const p=this.createEncodedPacket(m.packet,m.duration,i);return this.packetBuffers.set(p,l),this.packetSectionStarts.set(p,m.packet.sectionStartPos),p});if(!t||this.allPacketsAreKeyPackets()){e:for(;;){let e=I.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Wn(u,t,!1);if(e&&null!==e.pts){if(e.pts>c)break e;I=e,Xn(this.elementaryStream,I);break}}}e+=u.packetStride}}e:for(let e=0;e=u.packetOffset;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Wn(u,t,!1);if(e&&null!==e.pts){I=e;break}}}e-=u.packetStride}}return C(I.sectionStartPos,e=>e.pts<=c)}{let e=y,t=null;const i=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let r=null;const n=e<=k.sectionStartPos;let p,y=null;if(n)p=k,y=g;else{const t=yield m(e,null!=(s=d.fileSize)?s:1/0,i);p=null!=(a=null==t?void 0:t.pesPacketHeader)?a:null,y=null!=(o=null==t?void 0:t.section)?o:null}let b=!1,T=0;e:for(;p&&!(null!==t&&p.sectionStartPos>=t);){if(p.pts<=c){let e;if(this.elementaryStream.canBeTrustedWithKeyPackets)e=1===p.randomAccessIndicator;else{S(y);const t=Hn(u,y,!0);S(t);const i=new $n(this.elementaryStream,t);yield i.markNextPacket(),e=1===(null==(l=i.suppliedPacket)?void 0:l.randomAccessIndicator)}e&&(r=p)}if(p.pts>c&&(b=!0),b&&(T++,T>x))break;let e=p.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,i);if(t){const e=Wn(u,t,!1);if(e&&null!==e.pts){p=e,y=t,Xn(this.elementaryStream,p);break}}}e+=u.packetStride}}if(r){let e=r;if(0===T)e:for(let r=0;r=u.packetOffset;){const r=yield u.readPacketHeader(t);if(!r)break e;if(r.pid===f&&1===r.payloadUnitStartIndicator){const r=yield u.readSection(t,i);if(r){const t=Wn(u,r,!1);if(t&&null!==t.pts){e=t;break}}}t-=u.packetStride}}const t=yield C(e.sectionStartPos,e=>e.pts<=c&&1===e.randomAccessIndicator);return S(t),t}if(n)return null;t=e,e=Math.max(oe(e-k.sectionStartPos-h,u.packetStride)+k.sectionStartPos,k.sectionStartPos)}}})}}class jn extends Vn{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}getColorSpace(){return p(this,null,function*(){return this.elementaryStream.info.colorSpace})}canBeTransparent(){return p(this,null,function*(){return!1})}getDecoderConfig(){return p(this,null,function*(){return S(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class Kn extends Vn{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}getDecoderConfig(){return p(this,null,function*(){return S(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const Xn=(e,t)=>{const i=e.referencePesPackets,r=K(i,t.sectionStartPos,e=>e.sectionStartPos);if(r>=0){const n=i[r];if(t.pts<=n.pts)return!1;const s=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-n.sectionStartPos=e?e:this.bufferData(e-t).then(()=>Math.min(this.endPos-this.currentPos,e))}getCurrentPesPacket(){const e=this.pesPackets[this.currentPesPacketIndex];return S(e),e}bufferData(e){return p(this,null,function*(){const t=this.endPos+e;for(;this.endPos=c)break;u=t;const r=o+u;if(u+3>=c){this.seekTo(r);break}const d=l[u+1],h=l[u+2],f=l[u+3];let m=0;if(0===d&&0===h&&1===f?m=4:0===d&&1===h&&(m=3),0===m){u++;continue}const p=r;null!=n||(n=p);const g=u+m,k=g+i,y=6;if(k+("avc"===e?y:1)>c){this.seekTo(r);break}const b=l[g];let T,v,S;if("avc"===e)T=nt(b),v=T===Ye.NON_IDR_SLICE||T===Ye.SLICE_DPA||T===Ye.IDR,S=T===Ye.SEI||T===Ye.SPS||T===Ye.PPS||T===Ye.AUD;else{T=kt(b);if(((1&b)<<5|l[g+1]>>3)>0){u+=m;continue}v=T<=Ze.RASL_R||T>=Ze.BLA_W_LP&&T<=21,S=T>=Ze.VPS_NUT&&T<=37||T===Ze.PREFIX_SEI_NUT||T>=41&&T<=44||T>=48&&T<=55}let w=!1;if(v){let t;if("avc"===e){const e=l.subarray(k,k+y),i=I(new He(e));t=!s||i<=a,a=i}else t=l[k]>>7===1;t&&(s?w=!0:s=!0)}else S&&s&&(w=!0);if(w){const e=p-n;return this.seekTo(n),this.supplyPacket(e,0)}u+=m}if(rn){const e=this.endPos-n;return this.seekTo(n),this.supplyPacket(e,0)}}else{const n=r.info.codec,s=128;for(;;){let a=this.ensureBuffered(s);Pe(a)&&(a=yield a);const o=this.currentPos;for(;this.currentPos-o>6,a=63&i[4];if(3===n||a>37){this.seekTo(e+1);continue}const o=Ht[3*a+n];S(void 0!==o),this.seekTo(e),t=this.ensureBuffered(o),Pe(t)&&(t=yield t);const l=Math.round(13824e4/r.info.sampleRate);return this.supplyPacket(t,l)}if("eac3"===n){if(11!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(5);if(Pe(t)&&(t=yield t),t<5)return;const i=this.readBytes(5);if(11!==i[0]||119!==i[1]){this.seekTo(e+1);continue}const n=2*(((7&i[2])<<8|i[3])+1),a=3===i[4]>>6?3:i[4]>>4&3,o=Vt[a];this.seekTo(e),t=this.ensureBuffered(n),Pe(t)&&(t=yield t);const l=256*o,c=Math.round(l*Mn/r.info.sampleRate);return this.supplyPacket(t,c)}if("dts"===n){if(127!==s&&100!==s)continue;this.skip(-1);const n=this.currentPos;let a=this.ensureBuffered(18);if(Pe(a)&&(a=yield a),a<18)return;const o=this.readBytes(18),l=ni(o);let c=l?null:si(o);if(!l&&!c){this.seekTo(n+1);continue}if(c&&!c.asset){this.seekTo(n);const t=Math.min(c.frameSize,4096);let i=this.ensureBuffered(t);Pe(i)&&(i=yield i),c=null!=(e=si(this.readBytes(i)))?e:c}let u=l?l.frameSize:c.frameSize;if(l){let e=4*Math.ceil(l.frameSize/4);for(;;){this.seekTo(n);const t=e+10;let i=this.ensureBuffered(t);if(Pe(i)&&(i=yield i),i=0)}readNext(){return p(this,null,function*(){if(0===this.decodeOrderPackets.length){if(!(yield this.readNextPacket()))return null}yield this.ensureCurrentPacketHasNext();const e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e);let i;if(S(-1!==t),t===this.presentationOrderPackets.length-1)i=this.lastDuration;else{i=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=i}for(this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const e=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(e))break;this.presentationOrderPackets.shift()}return{packet:e,duration:i}})}readNextPacket(){return p(this,null,function*(){if(this.reachedEnd)return!1;let e;return this.context.suppliedPacket||(yield this.context.markNextPacket()),e=this.context.suppliedPacket,this.context.suppliedPacket=null,e?(this.decodeOrderPackets.push(e),this.processPacketThroughReorderBuffer(e),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)})}ensureCurrentPacketHasNext(){return p(this,null,function*(){const e=this.decodeOrderPackets[0];for(S(e);;){const t=this.presentationOrderPackets.indexOf(e);if(-1!==t&&t<=this.presentationOrderPackets.length-2)break;if(!(yield this.readNextPacket()))break}})}processPacketThroughReorderBuffer(e){if(this.reorderBuffer.push(e),this.reorderBuffer.length>this.reorderSize){let e=0;for(let i=1;ie.pts-t.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const Qn="application/vnd.apple.mpegurl",Yn="#EXT-X-STREAM-INF:",Jn="#EXT-X-I-FRAME-STREAM-INF:",Zn="#EXT-X-MEDIA:",es="#EXTINF:",ts="#EXT-X-MAP:",is="#EXT-X-KEY:",rs="#EXT-X-MEDIA-SEQUENCE:",ns="#EXT-X-BYTERANGE:",ss="#EXT-X-PROGRAM-DATE-TIME:",as="#EXT-X-TARGETDURATION:",os="#EXT-X-PLAYLIST-TYPE:",ls=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class cs{constructor(e){this._attributes={};let t="",i="",r=!1,n=!1;for(let s=0;sp(this,null,function*(){const e=[];if(this.trackDeclarations){for(const t of this.trackDeclarations)if("video"===t.type){const i=Re(e,e=>"video"===e.getType())+1;e.push(new hs(this,t,i))}else if("audio"===t.type){const i=Re(e,e=>"audio"===e.getType())+1;e.push(new fs(this,t,i))}}else{if(this.firstSegment=yield this.getFirstSegment({}),!this.firstSegment)return[];const t=this.getInputForSegment(this.firstSegment),i=yield t.getTracks();for(const r of i)if("video"===r.type){const t=Re(e,e=>"video"===e.getType())+1;e.push(new hs(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=Re(e,e=>"audio"===e.getType())+1;e.push(new fs(this,{id:e.length+1,type:"audio"},t))}}return e}))()})}getFirstTimestampForInput(e){return p(this,null,function*(){const t=this.firstTimestampCache.get(e);if(void 0!==t)return t;const i=yield e.getFirstTimestamp();return this.firstTimestampCache.set(e,i),i})}getMediaOffset(e,t){return p(this,null,function*(){var i;const r=null!=(i=e.firstSegment)?i:e;let n;if(this.firstSegmentFirstTimestamps.has(r))n=this.firstSegmentFirstTimestamps.get(r);else{const e=this.getInputForSegment(r);n=yield this.getFirstTimestampForInput(e),this.firstSegmentFirstTimestamps.set(r,n)}if(r===e)return r.timestamp-n;const s=yield this.getFirstTimestampForInput(t),a=e.timestamp-r.timestamp,o=s-n-a;return Math.abs(o)<=Math.min(.25,a)?r.timestamp-n:e.timestamp-s})}dispose(){for(const e of this.inputCache)e.input.dispose();this.inputCache.length=0}}class ds{constructor(e,t,i){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.firstSegment=null,this.segmentedInput=e,this.decl=t,this.number=i}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>p(this,null,function*(){var e,t;if(null!=(e=this.segmentedInput).firstSegment||(e.firstSegment=yield this.segmentedInput.getFirstSegment({})),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let i=this.segmentedInput.firstSegment,r=null;for(;i;){const e=this.segmentedInput.getInputForSegment(i);if(r=null!=(t=(yield e.getTracks()).find(e=>e.type===this.decl.type&&e.number===this.number))?t:null,r)break;i=yield this.segmentedInput.getNextSegment(i,{})}if(!r)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=r,this.firstSegment=i}))()}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(e){return this.firstInputTrack?e():this.hydrate().then(e)}getDecoderConfig(){return p(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}getHasOnlyKeyPackets(){return this.delegate(()=>{var e,t,i;return null!=(i=null==(t=(e=this.firstInputTrack._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:null})}getPairingMask(){return BigInt("1")}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}isRelativeToUnixEpoch(){return p(this,null,function*(){return yield this.hydrate(),S(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp})}getUnixTimeForTimestamp(e){return this.segmentedInput.getUnixTimeForTimestamp(e)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(e){return this.segmentedInput.getDurationFromMetadata(e)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}createAdjustedPacket(e,t,i){return p(this,null,function*(){S(e.sequenceNumber>=0),S(this.segmentedInput.firstSegment);const r=yield this.segmentedInput.getMediaOffset(t,i.input),n=t.timestamp-this.segmentedInput.firstSegment.timestamp,s=e.clone({timestamp:ae(e.timestamp+r,yield i.getTimeResolution()),sequenceNumber:Math.floor(1e8*n)+e.sequenceNumber});return this.packetInfos.set(s,{segment:t,track:i,sourcePacket:e}),s})}getFirstPacket(e){return p(this,null,function*(){var t;yield this.hydrate(),S(this.firstInputTrack),S(this.firstSegment);let i=this.firstInputTrack,r=this.firstSegment;for(;;){if(i){const t=yield i._backing.getFirstPacket(e);if(t)return this.createAdjustedPacket(t,r,i)}if(r=yield this.segmentedInput.getNextSegment(r,{skipLiveWait:e.skipLiveWait}),!r)break;const n=this.segmentedInput.getInputForSegment(r);i=null!=(t=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number))?t:null}return null})}getNextPacket(e,t){return this._getNextInternal(e,t,!1)}getNextKeyPacket(e,t){return this._getNextInternal(e,t,!0)}_getNextInternal(e,t,i){return p(this,null,function*(){const r=this.packetInfos.get(e);if(!r)throw new Error("Packet was not created from this track.");const n=i?yield r.track._backing.getNextKeyPacket(r.sourcePacket,t):yield r.track._backing.getNextPacket(r.sourcePacket,t);if(n)return this.createAdjustedPacket(n,r.segment,r.track);let s=r.segment;for(;;){const e=yield this.segmentedInput.getNextSegment(s,{skipLiveWait:t.skipLiveWait});if(!e)return null;const i=this.segmentedInput.getInputForSegment(e),n=(yield i.getTracks()).find(e=>e.type===r.track.type&&e.number===r.track.number);if(!n){s=e;continue}const a=yield n._backing.getFirstPacket(t);return a?this.createAdjustedPacket(a,e,n):null}})}getPacket(e,t){return this._getPacketInternal(e,t,!1)}getKeyPacket(e,t){return this._getPacketInternal(e,t,!0)}_getPacketInternal(e,t,i){return p(this,null,function*(){let r=yield this.segmentedInput.getSegmentAt(e,{skipLiveWait:t.skipLiveWait});if(!r)return null;for(yield this.hydrate();r;){const n=this.segmentedInput.getInputForSegment(r),s=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number);if(!s){r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait});continue}const a=yield this.segmentedInput.getMediaOffset(r,n),o=e-a,l=i?yield s._backing.getKeyPacket(o,t):yield s._backing.getPacket(o,t);if(l)return this.createAdjustedPacket(l,r,s);r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait})}return null})}}class hs extends ds{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}getColorSpace(){return p(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())})}canBeTransparent(){return p(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())})}getDecoderConfig(){return p(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}class fs extends ds{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}getDecoderConfig(){return p(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}Be();const ms=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class ps extends Ne{constructor(){super(),this._disposed=!1,this._refCount=0,this._usedForHls=!1,this._refFinalizationRegistry=null,this._sizePromise=null,this.onread=null,"undefined"!==typeof FinalizationRegistry&&(this._refFinalizationRegistry=new FinalizationRegistry(e=>{e._decrementRefCount()}))}getSizeOrNull(){return p(this,null,function*(){var e;if(this._disposed)throw new Ro;return null!=(e=this._sizePromise)?e:this._sizePromise=(()=>p(this,null,function*(){let e=this._getFileSize();return void 0!==e||(yield this._read(0,1,0,ms),e=this._getFileSize(),S(void 0!==e)),e}))()})}getSize(){return p(this,null,function*(){if(this._disposed)throw new Ro;const e=yield this.getSizeOrNull();if(null===e)throw new Error("Cannot determine the size of an unsized source.");return e})}slice(e,t){if(!Number.isInteger(e)||e<0)throw new TypeError("offset must be a non-negative integer.");if(void 0!==t&&(!Number.isInteger(t)||t<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new Rs(this,e,t)}_dispatchRead(e,t){var i;null==(i=this.onread)||i.call(this,e,t),this._emit("read",{start:e,end:t})}ref(){return new gs(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class gs{constructor(e){var t;if(this._freed=!1,e._disposed)throw new Error("Cannot ref a disposed source.");e._incrementRefCount(),null==(t=e._refFinalizationRegistry)||t.register(this,e,this),this._source=e}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){var e;if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const t=this.source;S(t._refCount>0),t._decrementRefCount(),null==(e=t._refFinalizationRegistry)||e.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class ks extends ps{constructor(e,t){if("string"!==typeof e)throw new TypeError("rootPath must be a string.");if("function"!==typeof t)throw new TypeError("requestHandler must be a function.");super(),this.rootPath=e,this.requestHandler=t}_resolveRequest(e){const t=this.requestHandler(e),i=e=>{var t;if(!(e instanceof ps||e instanceof gs))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof ps?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return Pe(t)?t.then(i):i(t)}}const ys=(e,t)=>e.path===t.path;class bs extends ks{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(e,t,i,r){if(!this._root){if(!this._rootRequest){const e=this._resolveRequest({path:this.rootPath,isRoot:!0}),t=e=>{const t=e instanceof ps?e.ref():e;return this._root=t,this._rootRequest=null,t};Pe(e)?this._rootRequest=e.then(t):(t(e),S(this._root))}if(this._rootRequest)return this._rootRequest.then(n=>n.source._read(e,t,i,r))}return this._root.source._read(e,t,i,r)}_getFileSize(){if(this._root)return this._root.source._getFileSize()}_dispose(){this._root?this._root.free():this._rootRequest&&this._rootRequest.then(e=>e.free())}}const Ts="undefined"!==typeof FinalizationRegistry?new FinalizationRegistry(e=>{e.cancel().catch(()=>{})}):null;class vs extends ps{constructor(e,t={}){var i;if(!(e instanceof Blob))throw new TypeError("blob must be a Blob.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.maxCacheSize&&(!Ee(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.useStreamReader&&"boolean"!==typeof t.useStreamReader)throw new TypeError("options.useStreamReader, when provided, must be a boolean.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(),this._readers=new WeakMap,this._blob=e,this._options=t,this._orchestrator=new _s({maxCacheSize:null!=(i=t.maxCacheSize)?i:8*c(2,20),maxWorkerCount:4,runWorker:this._runWorker.bind(this),onIdleWorkerRemoved:e=>{const t=this._readers.get(e);t&&(this._readers.delete(e),null==Ts||Ts.unregister(e),t.cancel().catch(()=>{}))},prefetchProfile:Es.fileSystem,handleUnhandledError:t.handleUnhandledError}),this._orchestrator.fileSize=e.size}_getFileSize(){return this._orchestrator.fileSize}_read(e,t,i,r){return this._orchestrator.read(e,t,i,r)}_runWorker(e){return p(this,null,function*(){S(e.strictTarget);let t=this._readers.get(e);if(void 0===t){if("stream"in this._blob&&!ke()&&!1!==this._options.useStreamReader){t=this._blob.slice(e.currentPos).stream().getReader(),null==Ts||Ts.register(e,t,e)}else t=null;this._readers.set(e,t)}for(;e.currentPos{if(t instanceof Error&&(t.message.includes("Failed to fetch")||t.message.includes("Load failed")||t.message.includes("NetworkError when attempting to fetch resource"))&&"undefined"!==typeof window){let e=null;try{"undefined"!==typeof window&&"undefined"!==typeof window.location&&(e=new URL(i instanceof Request?i.url:i,window.location.href).origin)}catch(r){}if(("undefined"===typeof navigator||"boolean"!==typeof navigator.onLine||navigator.onLine)&&null!==e&&e!==window.location.origin)return ze._warn("Request will not be retried because a CORS error was suspected due to different origins. You can modify this behavior by providing your own function for the 'getRetryDelay' option."),null}return Math.min(c(2,e-2),16)},Ps=new Set;class Is extends ks{constructor(e,t={}){var i,r,n,s;if("string"!==typeof e&&!(e instanceof URL)&&!("undefined"!==typeof Request&&e instanceof Request))throw new TypeError("url must be a string, URL or Request.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.requestInit&&(!t.requestInit||"object"!==typeof t.requestInit))throw new TypeError("options.requestInit, when provided, must be an object.");if(void 0!==t.getRetryDelay&&"function"!==typeof t.getRetryDelay)throw new TypeError("options.getRetryDelay, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!Ee(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.parallelism&&(!Number.isInteger(t.parallelism)||t.parallelism<1))throw new TypeError("options.parallelism, when provided, must be a positive number.");if(void 0!==t.fetchFn&&"function"!==typeof t.fetchFn)throw new TypeError("options.fetchFn, when provided, must be a function.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(e instanceof Request?e.url:e instanceof URL?e.href:e,e=>new Is(e.path,this._options)),this._offset=0,this._length=null,this._fileSizeDetermined=!1,this._sequentialBacking=null,this._url=e,this._options=t,this._getRetryDelay=null!=(i=t.getRetryDelay)?i:ws,this._requestInit=d({},t.requestInit);let a=null;if(null==(r=t.requestInit)?void 0:r.headers){const e=d({},fe(t.requestInit.headers)),i=Object.keys(e).find(e=>"range"===e.toLowerCase());void 0!==i&&(a=e[i],delete e[i],this._requestInit.headers=e)}if(e instanceof Request){const t=e.headers.get("Range");if(null!==t){null!=a||(a=t);const i=new Request(e);i.headers.delete("Range"),this._url=i}}if(null!==a){const e=Cs(a);e&&(this._offset=e.offset,this._length=e.length)}this._orchestrator=new _s({maxCacheSize:null!=(n=t.maxCacheSize)?n:64*c(2,20),maxWorkerCount:null!=(s=t.parallelism)?s:2,runWorker:this._runWorker.bind(this),prefetchProfile:Es.network,handleUnhandledError:t.handleUnhandledError})}_getFileSize(){var e;if(!this._fileSizeDetermined)return null!==this._length?this._length:void 0;const t=this._sequentialBacking?this._sequentialBacking._endIndex:this._orchestrator.fileSize;return null===t?null!==this._length?this._length:null:ie(t-this._offset,0,null!=(e=this._length)?e:1/0)}_read(e,t,i,r){var n;if(null!==this._length&&t>this._length)return null;const s=this._offset,a=this._sequentialBacking?this._sequentialBacking._read(s+e,s+t):this._orchestrator.read(s+e,s+t,Math.max(s+i,s),s+Math.min(r,null!=(n=this._length)?n:1/0)),o=e=>e?(e.offset-=this._offset,e):null;return Pe(a)?a.then(o):o(a)}_runWorker(e){return p(this,null,function*(){for(var t;;){const r=new AbortController,n=yield me(null!=(t=this._options.fetchFn)?t:fetch,this._url,he(this._requestInit,{headers:{Range:`bytes=${e.currentPos}-`},signal:r.signal}),this._getRetryDelay,()=>this._disposed);if(!n.ok)throw new Error(`Error fetching ${String(this._url)}: ${n.status} ${n.statusText}`);n.redirected&&(this.rootPath=n.url);e:if(null===this._orchestrator.fileSize&&(206===n.status||"basic"===n.type&&!n.headers.has("Content-Encoding"))){const t=n.headers.get("Content-Range");if(t){const e=/\/(\d+)/.exec(t);if(e){this._orchestrator.supplyFileSize(Number(e[1]));break e}}const i=n.headers.get("Content-Length");if(i){const t=206===n.status?e.currentPos:0;this._orchestrator.supplyFileSize(t+Number(i))}}if(this._fileSizeDetermined=!0,!n.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");if(206!==n.status){if(this._sequentialBacking)return void n.body.cancel();if(!this._usedForHls){const e=new URL(this._url instanceof Request?this._url.url:this._url,"undefined"!==typeof window?window.location.href:void 0);"null"===e.origin||e.pathname.endsWith(".m3u8")||e.pathname.endsWith(".m3u")||Ps.has(e.origin)||(ze._warn(`HTTP server (origin ${e.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. Alternatively, set maxCacheSize to Infinity in the UrlSource options to keep the entire resource in memory.`),Ps.add(e.origin))}return void this._transitionToSequentialMode(n.body)}const s=n.body.getReader();for(;;){if(e.currentPos>=e.targetPos||e.aborted)return r.abort(),void this._orchestrator.signalWorkerStoppedRunning(e);let t;try{t=yield s.read()}catch(i){if(this._disposed)throw i;const e=this._getRetryDelay(1,i,this._url);if(null!==e){ze._error("Error while reading response stream. Attempting to resume.",i),yield Me(1e3*e);break}throw i}if(e.aborted)continue;const{done:n,value:a}=t;if(n){if(e.currentPos>=e.targetPos)return void this._orchestrator.onWorkerFinished(e);if(e.strictTarget)break;return void this._orchestrator.onWorkerFinished(e)}this._dispatchRead(e.currentPos,e.currentPos+a.length),this._orchestrator.supplyWorkerData(e,a)}}})}_transitionToSequentialMode(e){let t=e.getReader(),i=0,r=0;const n=new ReadableStream({pull:e=>p(this,null,function*(){for(var n;;){let a;try{a=yield t.read()}catch(s){if(this._disposed)throw s;const e=this._getRetryDelay(1,s,this._url);if(null===e)throw s;ze._error("Error while reading response stream. Attempting to resume.",s),yield Me(1e3*e);const a=yield me(null!=(n=this._options.fetchFn)?n:fetch,this._url,he(this._requestInit,{headers:{Range:`bytes=${i}-`}}),this._getRetryDelay,()=>this._disposed);if(!a.ok)throw new Error(`Error fetching ${String(this._url)}: ${a.status} ${a.statusText}`);if(!a.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");t=a.body.getReader(),r=206===a.status?0:i;continue}if(a.done)return void e.close();let o=a.value;if(r>0){const e=Math.min(r,o.length);r-=e,o=o.subarray(e)}if(0!==o.length)return i+=o.length,void e.enqueue(o)}}),cancel:()=>t.cancel()}),s=new Bs(n,{maxCacheSize:this._orchestrator.options.maxCacheSize,handleUnhandledError:this._options.handleUnhandledError});s._endIndex=this._orchestrator.fileSize,s._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. Because the HTTP server did not honor the range request, data can only be read sequentially, with old data being evicted from the cache. To fix this issue, either ensure your server responds to range requests with 206 Partial Content, or set maxCacheSize to Infinity in the UrlSource options. Note that the latter will store the entire file in the cache if needed, no matter how large.",s.on("read",({start:e,end:t})=>this._dispatchRead(e,t)),this._sequentialBacking=s;const a=new Set;for(const o of this._orchestrator.workers){for(const e of o.pendingSlices)a.add(e);o.aborted=!0,o.pendingSlices.length=0}for(const o of this._orchestrator.queuedReads)for(const e of o.pendingSlices)a.add(e);this._orchestrator.workers.length=0,this._orchestrator.queuedReads.length=0;for(const o of a){const e=s._read(o.start,o.start+o.bytes.length);Pe(e)?e.then(e=>{e?(S(e.offset===o.start),o.resolve(e.bytes)):o.resolve(null)},e=>o.reject(e)):(S(null===e),o.resolve(null))}}_dispose(){this._orchestrator.dispose(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}}const xs=/^bytes=(\d+)-(\d*)$/,Cs=e=>{const t=xs.exec(e.trim());if(!t)return null;const i=Number(t[1]),r=""===t[2]?null:Number(t[2]);return null!==r&&rthis._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);const i=K(this._cache,e,e=>e.start),r=-1!==i?this._cache[i]:null;if(r&&r.start<=e&&t<=r.end)return{bytes:r.bytes,view:r.view,offset:r.start};let n=e;const s=new Uint8Array(t-e);if(-1!==i)for(let c=i;c=t)break;const r=Math.max(e,i.start);r>n&&this._throwDueToCacheMiss();const a=Math.min(t,i.end);rn&&this._throwDueToCacheMiss();const{promise:a,resolve:o,reject:l}=$();return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:o,reject:l}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(e=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(t=>t.reject(e)),this._pendingSlices.length=0;else{if(!this._handleUnhandledError)throw e;this._handleUnhandledError(e)}})),a}_throwDueToCacheMiss(){throw new Error(this._cacheMissErrorMessage)}_pull(){return p(this,null,function*(){for(null!=this._reader||(this._reader=this._stream.getReader());this._currentIndex0;){const e=this._cache[0];if(this._maxRequestedIndex-e.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=t.byteLength}this._pulling=!1})}_dispose(){var e;for(const t of this._pendingSlices)t.reject(new Ro);this._pendingSlices.length=0,this._cache.length=0,null==(e=this._reader)||e.cancel()}}const Es={fileSystem:(e,t)=>{const i=c(2,16);return{start:e=Math.floor((e-i)/i)*i,end:t=Math.ceil((t+i)/i)*i}},network:(e,t,i)=>{const r=c(2,16);e=Math.max(0,Math.floor((e-r)/r)*r);for(const n of i){const i=8*c(2,20),r=Math.max((n.startPos+n.targetPos)/2,n.targetPos-i);if(xe(e,t,r,n.targetPos)){const e=n.targetPos-n.startPos,r=Math.ceil((e+1)/i)*i,s=c(2,Math.ceil(Math.log2(e+1))),a=Math.min(s,r);t=Math.max(t,n.startPos+a)}}return{start:e,end:t=Math.max(t,e+Ss)}}};class _s{constructor(e){this.options=e,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(e,t,i,r){var n;S(!this.disposed);const s=this.options.prefetchProfile(e,t,this.workers),a=Math.max(s.start,i),o=Math.min(s.end,null!=(n=this.fileSize)?n:1/0,r);S(a<=e&&t<=o);let l=null;const c=K(this.cache,e,e=>e.start),u=-1!==c?this.cache[c]:null;u&&u.start<=e&&t<=u.end&&(u.age=this.nextAge++,l={bytes:u.bytes,view:u.view,offset:u.start});const d=K(this.cache,a,e=>e.start),h=l?null:new Uint8Array(t-e);let f=0,m=a;const p=[];if(-1!==d){for(let i=d;i=o)break;if(r.end<=a)continue;const n=Math.max(a,r.start),s=Math.min(o,r.end);if(S(n<=s),m=h.length&&(l={bytes:h,view:E(h),offset:e}),0===p.length)return S(l),l;const{promise:g,resolve:k,reject:y}=$(),b=[];for(const v of p){const i=Math.max(e,v.start),r=Math.min(t,v.end);i===v.start&&r===v.end?b.push(v):ie.hole.start),i=-1!==t?this.queuedReads[t]:null;for(i&&v.start<=i.hole.end?(i.hole.end=Math.max(i.hole.end,v.end),i.strictTarget&&(i.strictTarget=e),T&&i.pendingSlices.push(T)):(t++,i={hole:{start:v.start,end:v.end},strictTarget:e,pendingSlices:T?[T]:[],age:this.nextAge++},this.queuedReads.splice(t,0,i));t+1i.hole.end)break;i.hole.end=Math.max(i.hole.end,e.hole.end),i.pendingSlices.push(...e.pendingSlices),i.strictTarget&&(i.strictTarget=e.strictTarget),i.age=Math.min(i.age,e.age),this.queuedReads.splice(t+1,1)}}}return l?g.catch(e=>{if(!this.disposed){if(!this.options.handleUnhandledError)throw e;this.options.handleUnhandledError(e)}}):(S(h),l=g.then(t=>t&&{bytes:t,view:E(t),offset:e})),l}checkHoleAgainstWorker(e,t,i){const r=c(2,17);if(xe(t.start-r,t.start,e.currentPos,e.targetPos)){e.targetPos=Math.max(e.targetPos,t.end);for(let t=0;t=this.options.maxWorkerCount){let e=null,t=null;for(let i=0;i{if(e.running=!1,e.pendingSlices.length>0)e.pendingSlices.forEach(e=>e.reject(t)),e.pendingSlices.length=0;else if(!e.aborted&&!this.disposed){if(!this.options.handleUnhandledError)throw t;this.options.handleUnhandledError(t)}}).finally(()=>{if(!e.running&&this.queuedReads.length>0){let e=0;for(let r=1;re.targetPos&&(e.targetPos=e.currentPos,this.checkQueuedReadsAgainstWorker(e));for(let a=0;at.start&&(t.start=s),t.end<=t.start&&(i.holes.splice(e,1),e--)}0===i.holes.length&&(i.resolve(i.bytes),e.pendingSlices.splice(a,1),a--)}for(let a=0;ae){r.resolve(null),t.pendingSlices.splice(i,1),i--;break}}}for(let t=0;t=e){for(const e of i.pendingSlices)e.resolve(null);this.queuedReads.splice(t,1),t--}else if(i.hole.end>e){i.hole.end=e,i.strictTarget=!0;for(let t=0;t=e&&(r.resolve(null),i.pendingSlices.splice(t,1),t--)}}}}signalWorkerStoppedRunning(e){e.running=!1,e.aborted||(e.pendingSlices.length=0)}onWorkerFinished(e){var t,i;const r=this.workers.indexOf(e);S(-1!==r),e.running=!1,this.workers.splice(r,1),null==(i=(t=this.options).onIdleWorkerRemoved)||i.call(t,e),null===this.fileSize&&this.supplyFileSize(e.currentPos);for(const n of e.pendingSlices)n.resolve(null)}insertIntoCache(e){if(0===this.options.maxCacheSize)return;let t=K(this.cache,e.start,e=>e.start)+1;if(t>0){const i=this.cache[t-1];if(i.end>=e.end)return;if(i.end>e.start){const r=new Uint8Array(e.end-i.start);r.set(i.bytes,0),r.set(e.bytes,e.start-i.start),this.currentCacheSize+=e.end-i.end,i.bytes=r,i.view=E(r),i.end=e.end,t--,e=i}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length;for(let i=t+1;i=t.end){this.cache.splice(i,1),this.currentCacheSize-=t.bytes.length,i--;continue}const r=new Uint8Array(t.end-e.start);r.set(e.bytes,0),r.set(t.bytes,t.start-e.start),this.currentCacheSize-=e.end-t.start,e.bytes=r,e.view=E(r),e.end=t.end,this.cache.splice(i,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let e=0,t=this.cache[0];for(let i=1;ithis._length)return null;const n=this._baseSource._read(this._offset+e,this._offset+t,this._offset+i,this._offset+r),s=e=>e?(e.offset-=this._offset,e):null;return Pe(n)?n.then(s):s(n)}_dispose(){var e;null==(e=this._ref)||e.free()}ref(){return null!=this._ref||(this._ref=this._baseSource.ref()),super.ref()}}var Fs=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,n;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(n=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");n&&(r=function(){try{n.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t},As=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});const Ds=/^0[xX][0-9a-fA-F]+$/,Ms=/^data:.*;base64,/i;class Ns extends us{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){var e;return null!=(e=this.currentUpdateSegmentsPromise)?e:this.currentUpdateSegmentsPromise=(()=>p(this,null,function*(){try{const e=this.getRemainingWaitTimeMs();e>0&&(yield Me(e)),this.lastSegmentUpdateTime=performance.now(),yield this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}}))()}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}updateSegments(){return p(this,null,function*(){var e,t,i,r,n,s,a,o;let l=this.nextLines;if(this.nextLines=null,!l){const e={stack:[],error:void 0,hasError:!1};try{const t=Fs(e,yield this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),i=new Fo(t.source),r=yield i.requestEntireFile();S(r),l=Jo(r,r.length,{ignore:ls}),t.source instanceof ks&&(this.rootPath=t.source.rootPath)}catch(F){e.error=F,e.hasError=!0}finally{As(e)}}const u=!1!==(null==(e=this.input._formatOptions.hls)?void 0:e.offsetTimestampsByDateTime);let f=!1,m=0,p=null,g=null,k=null,y=0,b=null,T=null,v=null,w=null,I=null,x=null,C=!1,B=null!=(t=P(this.segments))?t:null;const _=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${e}'.`);let r=null;if(-1!==t&&(r=Number(e.slice(t+1)),!Number.isInteger(r)||r<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${e}'.`);return{length:i,offset:r}},R=e=>{y=e,B&&(S(null!==B.sequenceNumber),B.sequenceNumber0&&null!==x&&(m=y*x),C=!0);const t=e.slice(8),i=t.indexOf(","),r=-1===i?t:t.slice(0,i),n=Number(r);if(!Number.isFinite(n)||n<0)throw new Error(`Invalid #EXTINF tag duration '${r}'.`);g=n}else if(e.startsWith(ts)){const t=new cs(e.slice(11)),i=t.get("uri");if(!i)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const r=t.get("byterange");let a=null;if(null!==r&&(a=_(r)),a&&null===a.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!B){const e={path:_e(this.rootPath,i),offset:null!=(n=null==a?void 0:a.offset)?n:0,length:null!=(s=null==a?void 0:a.length)?s:null};if("AES-128"===(null==k?void 0:k.method)&&!k.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");T={timestamp:m,unixEpochTimestamp:p,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:k,initSegment:null,lastProgramDateTimeSeconds:I}}g=null,null===w?v=null:w=null}else if(e.startsWith(is)){const t=new cs(e.slice(11)),i=t.get("method");if("NONE"===i)k=null;else if("AES-128"===i){const e=t.get("uri");if(!e)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let i=null;const r=t.get("iv");if(r){if(!Ds.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(Vi);for(let t=0;t=8&&112===i[4]&&115===i[5]&&115===i[6]&&104===i[7]){const e=E(i).getUint32(0);r=Ni(i.subarray(8,Math.min(e,i.length)))}}k={method:i,psshBox:r}}}}else if(e.startsWith(rs)){const t=e.slice(22),i=Number(t);if(!Number.isInteger(i)||i<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${t}'.`);R(i)}else if(e.startsWith(ns)){const t=_(e.slice(17));if(null===t.offset){if(null===v)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");t.offset=v}w=t,v=t.offset+t.length}else if(e.startsWith(ss)){if(B)continue;const t=e.slice(25),i=Date.parse(t);if(!Number.isFinite(i))continue;const r=i/1e3;if(I===r)continue;if(null===I&&this.segments.length>0){const e=P(this.segments),t=r-(e.timestamp+e.duration);for(const i of this.segments)i.unixEpochTimestamp=i.timestamp+t,u&&(i.timestamp=i.unixEpochTimestamp)}I=r,p=r,u&&(m=r)}else if("#EXT-X-DISCONTINUITY"===e)b=null;else if(e.startsWith(as)){const t=e.slice(22),i=Number(t);if(!Number.isFinite(i)||i<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${t}'.`);this.refreshInterval=i,x=i}else{if("#EXT-X-ENDLIST"===e){this.streamHasEnded=!0;break}if(e.startsWith(os)){"vod"===e.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==e)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");f=!0}}if(!f)throw new Error("Invalid M3U8 file; no #EXTM3U header.")})}getFirstSegment(){return p(this,null,function*(){var e;return 0===this.segments.length&&(yield this.runUpdateSegments()),null!=(e=this.segments[0])?e:null})}getSegmentAt(e,t){return p(this,null,function*(){0===this.segments.length&&(yield this.runUpdateSegments());let i=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const r=K(this.segments,e,e=>e.timestamp);if(-1===r)return null;if(r0;for(;;){if(re.segment===r);if(n)return n.age=this.nextInputCacheAge++,n.input;let s=null;(r.initSegment||r.firstSegment)&&(s=this.getInputForSegment(null!=(t=r.initSegment)?t:r.firstSegment));const a=h(d({},this.input._formatOptions),{isobmff:h(d({},this.input._formatOptions.isobmff),{resolveKeyId:(null==(i=this.input._formatOptions.isobmff)?void 0:i.resolveKeyId)&&(e=>{if(!r.encryption||"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method||!r.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(e);let t=e.psshBoxes;const{psshBox:i}=r.encryption;return null!==i.keyIds&&!i.keyIds.includes(e.keyId)||t.some(e=>Oi(e,i))||(t=[...t,i]),this.input._formatOptions.isobmff.resolveKeyId(h(d({},e),{psshBoxes:t}))})})}),o=new Eo({source:new bs(r.location.path,e=>p(this,null,function*(){var t,i;S(e.isRoot);const n=h(d({},e),{isRoot:!1});let s;const a=r.location.offset>0||null!==r.location.length;if(r.encryption&&"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method)if("AES-128"===r.encryption.method){const e=r.encryption;S(e.iv);let t=yield this.input._getSourceCached(n);if(a){const e=t.source.slice(r.location.offset,null!=(i=r.location.length)?i:void 0).ref();t.free(),t=e}const o=((e,t,i)=>{let r=!1,n=0;const s=c(2,16),a=new Zi;return new ReadableStream({pull:o=>p(null,null,function*(){r||(a.init(yield t()),r=!0);const l=s+16;let c=e.requestSliceRange(n,0,l);if(Pe(c)&&(c=yield c),!c||0===c.length)throw new Error("Invalid ciphertext.");const u=c.length;if(u%16!==0)throw new Error("Invalid ciphertext.");const d=u===l?u-16:u,h=Mo(c,d),f=new Uint8Array(d);for(let e=0;e16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const t=f.subarray(0,d-e);o.enqueue(t),o.close(),i()}}),cancel:()=>{i()}})})(new Fo(t.source),()=>p(this,null,function*(){const t={stack:[],error:void 0,hasError:!1};try{const i=Fs(t,yield this.input._getSourceCached({path:e.keyUri,isRoot:!1},Bo),!1),r=new Fo(i.source),n=yield r.requestSlice(0,Vi);if(!n)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:Mo(n,Vi),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{As(t)}}),()=>{t.free()});s=new Bs(o).ref()}else S(!1);else if(s=yield this.input._getSourceCached(n),a){const e=s.source.slice(r.location.offset,null!=(t=r.location.length)?t:void 0).ref();s.free(),s=e}return s})),formats:this.input._formats.filter(e=>!(e instanceof ia)),initInput:null!=s?s:void 0,formatOptions:a});o._onFormatDetermined=e=>{var t,i;if(("SAMPLE-AES"===(null==(t=r.encryption)?void 0:t.method)||"SAMPLE-AES-CTR"===(null==(i=r.encryption)?void 0:i.method))&&!e._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:r,input:o,age:this.nextInputCacheAge++});if(this.inputCache.length>4){const e=Fe(this.inputCache,e=>e.age);S(-1!==e),this.inputCache.splice(e,1)}return o}getLiveRefreshInterval(){return p(this,null,function*(){return 0===this.getRemainingWaitTimeMs()&&(yield this.runUpdateSegments()),this.streamHasEnded?null:this.refreshInterval})}}class Os extends Ai{constructor(e){super(e),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>p(this,null,function*(){S(this.input._rootSource instanceof ks);const e=yield this.input._reader.requestEntireFile();S(e);const t=Jo(e,e.length,{ignore:ls}),{rootPath:i}=this.input._rootSource,r=[],n=[];for(let u=1;u"video"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],a=[...new Set(n.filter(e=>"audio"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],o=yield Promise.all(r.map((e,t)=>p(this,null,function*(){var r,o,l,c;const u=[],d=e.attributes.get("codecs");let h;if(d)h=d.split(",").map(e=>e.trim());else{const t=this.getSegmentedInputForPath(e.fullPath),i=yield t.getTrackBackings(),r=yield Promise.all(i.map(e=>p(this,null,function*(){return{track:e,codec:yield e.getCodec()}})));h=yield Promise.all(r.filter(e=>null!==e.codec).map(e=>e.track.getDecoderConfig().then(e=>e.codec)))}const f=e.attributes.get("video"),m=e.attributes.get("audio"),g=h.some(e=>oi.includes(Si(e))),k=h.some(e=>ci.includes(Si(e)));if(null!==f&&!g){if(!s.includes(f))throw new Error(`Invalid M3U8 file; variant stream references video group "${f}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===f&&"video"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=_e(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"video"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});S(null!==a),h.push(a)}}if(null!==m&&!k){if(!a.includes(m))throw new Error(`Invalid M3U8 file; variant stream references audio group "${m}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===m&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=_e(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"audio"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});S(null!==a),h.push(a)}}h=[...new Set(h)];let y=null,b=null;const T=e.attributes.getAsNumber("bandwidth");S(null!==T);const v=e.attributes.getAsNumber("average-bandwidth"),w=e.attributes.get("name");for(const i of h){const d=Si(i);if(null!==d)if(oi.includes(d)){if(null!==y)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");y=i;const a=e.attributes.get("video");if(null===a){const i=e.attributes.get("resolution");let r=null,n=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(r=Number(e[1]),n=Number(e[2]))}u.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:re,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:y,pairingMask:BigInt("1")<0?r:null}})}else{if(!a.includes(r))throw new Error(`Invalid M3U8 file; variant stream references audio group "${r}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of n){const n=i.attributes.get("group-id"),s=i.attributes.get("type");if(n!==r||"audio"!==s.toLowerCase())continue;const a=null!=(l=i.attributes.get("channels"))?l:e.attributes.get("channels"),o=null!==a?Number(a.split("/")[0]):null;u.push({id:-1,demuxer:this,backingTrack:null,default:qs(i.attributes),autoselect:qs(i.attributes)||Ws(i.attributes),languageCode:Hs(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:null!=(c=i.fullPath)?c:e.fullPath,fullCodecString:b,pairingMask:BigInt("1")<0?o:null}})}}}}return u}))),l=[],c=e=>{var t,i;const r=l.find(t=>t.fullPath===e.fullPath&&t.info.type===e.info.type);r?(r.pairingMask|=e.pairingMask,r.default||(r.default=e.default),r.autoselect||(r.autoselect=e.autoselect),r.lineNumber=Math.min(r.lineNumber,e.lineNumber),null!==e.peakBitrate&&(r.peakBitrate=Math.max(null!=(t=r.peakBitrate)?t:-1/0,e.peakBitrate)),null!==e.averageBitrate&&(r.averageBitrate=Math.max(null!=(i=r.averageBitrate)?i:-1/0,e.averageBitrate)),r.languageCode===re&&(r.languageCode=e.languageCode)):(e.id=l.length+1,l.push(e))};for(const u of o)for(const e of u)c(e);l.sort((e,t)=>e.lineNumber-t.lineNumber),this.trackBackings=[];for(const u of l)"video"===u.info.type?this.trackBackings.push(new zs(u)):this.trackBackings.push(new Us(u));this.internalTracks=l}))()}getTrackBackings(){return p(this,null,function*(){return yield this.readMetadata(),S(this.trackBackings),this.trackBackings})}getSegmentedInputForPath(e){let t=this.segmentedInputs.find(t=>t.path===e);if(t)return t;let i=null;if(this.internalTracks){i=this.internalTracks.filter(t=>t.fullPath===e).map(e=>({id:e.id,type:e.info.type}))}return t=new Ns(this,e,i,null),this.segmentedInputs.push(t),t}getMetadataTags(){return p(this,null,function*(){return{}})}getMimeType(){return p(this,null,function*(){return Qn})}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class Ls{constructor(e){this.internalTrack=e,this.hydrationPromise=null}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>p(this,null,function*(){const e=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let t=null;const i=(yield e.getTrackBackings()).filter(e=>e.getType()===this.getType());if(1===i.length)t=i[0];else if(this instanceof zs){for(const r of i)if((yield r.getCodec())===this.getCodec()){t=r;break}}else{S(this instanceof Us);for(const e of i)if((yield e.getCodec())===this.getCodec()){t=e;break}}if(!t)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=t}))()}delegate(e){return this.internalTrack.backingTrack?e():this.hydrate().then(e)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return h(d({},We),{default:this.internalTrack.autoselect,primary:this.internalTrack.default})}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){S(this.internalTrack.demuxer.internalTracks);const e=this.internalTrack.info.type;let t=0;for(const i of this.internalTrack.demuxer.internalTracks)if(i.info.type===e&&t++,i===this.internalTrack)break;return t}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(e){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(e))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}getDurationFromMetadata(e){return p(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(e)})}getLiveRefreshInterval(){return p(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()})}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}getFirstPacket(e){return p(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(e)})}getPacket(e,t){return p(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getPacket(e,t)})}getKeyPacket(e,t){return p(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(e,t)})}getNextPacket(e,t){return p(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextPacket(e,t)})}getNextKeyPacket(e,t){return p(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(e,t)})}}class zs extends Ls{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return Si(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}getColorSpace(){return p(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getColorSpace()})}canBeTransparent(){return p(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.canBeTransparent()})}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return p(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getDecoderConfig()})}}class Us extends Ls{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return Si(this.internalTrack.fullCodecString)}getNumberOfChannels(){return null!==this.internalTrack.info.numberOfChannels?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return p(this,null,function*(){return yield this.hydrate(),this.backingAudioTrack.getDecoderConfig()})}}const qs=e=>{const t=e.get("default");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},Ws=e=>{const t=e.get("autoselect");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},Hs=e=>{if(null===e)return re;const t=e.split("-")[0];return t||re};class Vs{constructor(){this._isIsobmff=!1}}class js extends Vs{constructor(){super(...arguments),this._isIsobmff=!0}_getMajorBrand(e){return p(this,null,function*(){let t=e._reader.requestSlice(0,12);if(Pe(t)&&(t=yield t),!t)return null;t.skip(4);const i=Yo(t,4);return"ftyp"!==i&&"styp"!==i?null:Yo(t,4)})}_createDemuxer(e){return new er(e)}}class Ks extends js{_canReadInput(e){return p(this,null,function*(){const t=yield this._getMajorBrand(e);if(null!==t)return"qt "!==t;let i=0;for(let r=0;r<10;r++){let t=e._reader.requestSlice(i,8);if(Pe(t)&&(t=yield t),!t)return!1;let r=Wo(t),n=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(Pe(t)&&(t=yield t),!t)return!1;r=Ko(t),n=16}if(r8)return!1;if(xr(i,r)!==yr.EBML)return!1;const n=Br(i);if("number"!==typeof n)return!1;let s=e._reader.requestSlice(i.filePos,n);if(Pe(s)&&(s=yield s),!s)return!1;const a=i.filePos;for(;s.filePos<=a+n-2;){const e=Er(s);if(!e)break;const{id:i,size:r}=e,n=s.filePos;if(void 0===r)return!1;switch(i){case yr.EBMLVersion:if(1!==xr(s,r))return!1;break;case yr.EBMLReadVersion:if(1!==xr(s,r))return!1;break;case yr.DocType:if(_r(s,r)!==t)return!1;break;case yr.DocTypeVersion:if(xr(s,r)>4)return!1}s.filePos=n+r}return!0})}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new sn(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class Gs extends $s{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class Qs extends Vs{_canReadInput(e){return p(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,nl);if(Pe(i)&&(i=yield i),!i)break;const r=ll(i);if(!r)break;t=i.filePos+r.size}const i=yield cn(e._reader,t,t+4096);if(!i)return!1;const r=i.header,n=Ci(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+n,4);if(Pe(s)&&(s=yield s),!s)return!1;const a=Wo(s);if(a===Ii||a===xi)return!0;t=i.startPos+i.header.totalSize;const o=yield cn(e._reader,t,t+4);if(!o)return!1;const l=o.header;return r.channel===l.channel&&r.sampleRate===l.sampleRate})}_createDemuxer(e){return new un(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class Ys extends Vs{_canReadInput(e){return p(this,null,function*(){let t=e._reader.requestSlice(0,12);if(Pe(t)&&(t=yield t),!t)return!1;const i=Yo(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===Yo(t,4)})}_createDemuxer(e){return new xn(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class Js extends Vs{_canReadInput(e){return p(this,null,function*(){let t=e._reader.requestSlice(0,4);return Pe(t)&&(t=yield t),!!t&&"OggS"===Yo(t,4)})}_createDemuxer(e){return new Tn(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class Zs extends Vs{_canReadInput(e){return p(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,nl);if(Pe(i)&&(i=yield i),!i)break;const r=ll(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return Pe(i)&&(i=yield i),!!i&&"fLaC"===Yo(i,4)})}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new An(e)}}class ea extends Vs{_canReadInput(e){return p(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,nl);if(Pe(i)&&(i=yield i),!i)break;const r=ll(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(Pe(i)&&(i=yield i),!i)return!1;const r=En(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),Pe(i)&&(i=yield i),!i)return!1;const n=En(i);return!!n&&(r.objectType===n.objectType&&r.samplingFrequencyIndex===n.samplingFrequencyIndex&&r.channelConfiguration===n.channelConfiguration)})}_createDemuxer(e){return new Rn(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class ta extends Vs{_canReadInput(e){return p(this,null,function*(){let t=e._reader.requestSlice(0,205);if(Pe(t)&&(t=yield t),!t)return!1;const i=Mo(t,205);return 71===i[0]&&71===i[188]||(71===i[0]&&71===i[204]||71===i[4]&&71===i[196])})}_createDemuxer(e){return new qn(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class ia extends Vs{_canReadInput(e){return p(this,null,function*(){let t=e._reader.requestSlice(0,7);if(Pe(t)&&(t=yield t),!t)return!1;if(!("#EXTM3U"===Yo(t,7)))return!1;if(!(e._rootSource instanceof ks))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return e._rootSource._usedForHls=!0,!0})}_createDemuxer(e){return new Os(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return Qn}}const ra=new Ks,na=new Xs,sa=new $s,aa=new Gs,oa=new Qs,la=new Ys,ca=new Js,ua=new ea,da=new Zs,ha=new ta,fa=new ia,ma=[fa,ra,na,sa,aa,la,ca,da,oa,ua,ha],pa=[fa,ra,na,oa,ua,ha];var ga=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});Be();let ka=-1/0,ya=-1/0,ba=null;"undefined"!==typeof FinalizationRegistry&&(ba=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-ka>=1e3&&(ze._error("A VideoSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your VideoSamples as soon as you're done using them."),ka=t),"undefined"!==typeof VideoFrame&&e.data instanceof VideoFrame&&e.data.close()):(t-ya>=1e3&&(ze._error("An AudioSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your AudioSamples as soon as you're done using them."),ya=t),"undefined"!==typeof AudioData&&e.data instanceof AudioData&&e.data.close())}));class Ta{constructor(){this._referenceCount=0,this._lastAllocationBuffer=null}}const va=["I420","I420P10","I420P12","I420A","I420AP10","I420AP12","I422","I422P10","I422P12","I422A","I422AP10","I422AP12","I444","I444P10","I444P12","I444A","I444AP10","I444AP12","NV12","RGBA","RGBX","BGRA","BGRX"],Sa=new Set(va);class wa{get codedWidth(){return this.visibleRect.width}get codedHeight(){return this.visibleRect.height}get displayWidth(){return this.rotation%180===0?this.squarePixelWidth:this.squarePixelHeight}get displayHeight(){return this.rotation%180===0?this.squarePixelHeight:this.squarePixelWidth}get microsecondTimestamp(){return Math.trunc(de*this.timestamp)}get microsecondDuration(){return Math.trunc(de*this.duration)}get hasAlpha(){return this.format&&this.format.includes("A")}constructor(e,t){var i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,S,w,P,I,x,C,E,_,R,F,A;if(this._closed=!1,e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e)){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0===t.format||!Sa.has(t.format))throw new TypeError("init.format must be one of: "+va.join(", "));if(!Number.isInteger(t.codedWidth)||t.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(t.codedHeight)||t.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.layout){if(!Array.isArray(t.layout))throw new TypeError("init.layout, when provided, must be an array.");for(const e of t.layout){if(!e||"object"!==typeof e||Array.isArray(e))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(e.offset)||e.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(e.stride)||e.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==t.visibleRect&&De(t.visibleRect,"init.visibleRect"),void 0!==t.displayWidth&&(!Number.isInteger(t.displayWidth)||t.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(void 0!==t.displayHeight&&(!Number.isInteger(t.displayHeight)||t.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(void 0!==t.displayWidth!==(void 0!==t.displayHeight))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=t.format,this.rotation=null!=(i=t.rotation)?i:0,this.timestamp=t.timestamp,this.duration=null!=(r=t.duration)?r:0;const m=null!=(n=t.layout)?n:Aa(t.format,t.codedWidth,t.codedHeight);let p=null!=(s=t.colorSpace)?s:null;null===p&&(p="RGBA"===this.format||"RGBX"===this.format||"BGRA"===this.format||"BGRX"===this.format?{primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:{primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:null!=(o=null==(a=t.visibleRect)?void 0:a.left)?o:0,top:null!=(c=null==(l=t.visibleRect)?void 0:l.top)?c:0,width:null!=(d=null==(u=t.visibleRect)?void 0:u.width)?d:t.codedWidth,height:null!=(f=null==(h=t.visibleRect)?void 0:h.height)?f:t.codedHeight},void 0!==t.displayWidth?(this.squarePixelWidth=this.rotation%180===0?t.displayWidth:t.displayHeight,this.squarePixelHeight=this.rotation%180===0?t.displayHeight:t.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=t._doNotCopy?B(e):B(e).slice(),this._layout=m,this.colorSpace=new Ba(p)}else if("undefined"!==typeof VideoFrame&&e instanceof VideoFrame){if(void 0!==(null==t?void 0:t.rotation)&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(void 0!==(null==t?void 0:t.timestamp)&&!Number.isFinite(null==t?void 0:t.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(void 0!==(null==t?void 0:t.duration)&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");void 0!==(null==t?void 0:t.visibleRect)&&De(t.visibleRect,"init.visibleRect"),this._data=e,this._layout=null,this.format=e.format,this.visibleRect={left:null!=(p=null==(m=e.visibleRect)?void 0:m.x)?p:0,top:null!=(k=null==(g=e.visibleRect)?void 0:g.y)?k:0,width:null!=(b=null==(y=e.visibleRect)?void 0:y.width)?b:e.codedWidth,height:null!=(v=null==(T=e.visibleRect)?void 0:T.height)?v:e.codedHeight},this.rotation=null!=(S=null==t?void 0:t.rotation)?S:0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=null!=(w=null==t?void 0:t.timestamp)?w:e.timestamp/1e6,this.duration=null!=(I=null==t?void 0:t.duration)?I:(null!=(P=e.duration)?P:0)/1e6,this.colorSpace=new Ba(e.colorSpace)}else if("undefined"!==typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!==typeof SVGImageElement&&e instanceof SVGImageElement||"undefined"!==typeof ImageBitmap&&e instanceof ImageBitmap||"undefined"!==typeof HTMLVideoElement&&e instanceof HTMLVideoElement||"undefined"!==typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!==typeof OffscreenCanvas&&e instanceof OffscreenCanvas){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.visibleRect&&De(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new wa(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*de),duration:Math.trunc((null!=(x=t.duration)?x:0)*de)||void 0,visibleRect:t.visibleRect&&{x:t.visibleRect.left,y:t.visibleRect.top,width:t.visibleRect.width,height:t.visibleRect.height}}),t);let i=0,r=0;if("naturalWidth"in e?(i=e.naturalWidth,r=e.naturalHeight):"videoWidth"in e?(i=e.videoWidth,r=e.videoHeight):"width"in e&&(i=Number(e.width),r=Number(e.height)),!i||!r)throw new TypeError("Could not determine dimensions.");const n=null!=(C=t.visibleRect)?C:{left:0,top:0,width:i,height:r},s=new OffscreenCanvas(n.width,n.height),a=s.getContext("2d",{alpha:be(),willReadFrequently:!0});if(!a)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");a.drawImage(e,-n.left,-n.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:n.width,height:n.height},this.squarePixelWidth=n.width,this.squarePixelHeight=n.height,this.rotation=null!=(E=t.rotation)?E:0,this.timestamp=t.timestamp,this.duration=null!=(_=t.duration)?_:0,this.colorSpace=new Ba({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof Ta))throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=e,e._referenceCount++,this.format=e.getFormat(),null!==this.format&&!va.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:e.getCodedWidth(),height:e.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=e.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=e.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=null!=(R=t.rotation)?R:0,this.timestamp=t.timestamp,this.duration=null!=(F=t.duration)?F:0,this.colorSpace=e.getColorSpace()}this.encodeOptions=null!=(A=null==t?void 0:t.encodeOptions)?A:{},this.pixelAspectRatio=Ae({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),null==ba||ba.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return S(null!==this._data),this._data instanceof Ta?new wa(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):Ea(this._data)?new wa(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(S(this._layout),new wa(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new wa(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(null==ba||ba.unregister(this),this._data instanceof Ta?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Ea(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){var t;if(Fa(e),this._closed)throw new Error("VideoSample is closed.");if(null==(null!=(t=e.format)?t:this.format))throw new Error("Cannot get allocation size when format is null.");if(Ea(this._data))return this._data.allocationSize(e);return Ma(this,e).allocationSize}copyTo(e){return p(this,arguments,function*(e,t={}){var i,r;if(!U(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(Fa(t),this._closed)throw new Error("VideoSample is closed.");if(null==(null!=(i=t.format)?i:this.format))throw new Error("Cannot copy video sample data when format is null.");if(S(null!==this._data),Ea(this._data))return this._data.copyTo(e,t);if(t.format&&!["RGBA","RGBX","BGRA","BGRX"].includes(this.format)&&["RGBA","RGBX","BGRA","BGRX"].includes(t.format)){if(!(this._data instanceof Ta)){if("undefined"===typeof VideoFrame)throw new Error("For this sample, converting from a non-RGB to an RGB format requires VideoFrame to be defined.");const i=this.toVideoFrame(),r=yield i.copyTo(e,t);return i.close(),r}{const i={stack:[],error:void 0,hasError:!1};try{const n=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,n;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(n=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");n&&(r=function(){try{n.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t}(i,yield this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation},null!=(r=t.colorSpace)?r:"srgb"),!1);if(!(n instanceof wa))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(n.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${n.format}' instead.`);return yield n.copyTo(e,t)}catch(u){i.error=u,i.hasError=!0}finally{ga(i)}}}const n=Ma(this,t);S(this.format);const s=B(e);if(s.byteLength!(e.data instanceof Uint8Array)||!Number.isInteger(e.stride)||e.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');o=e}else if(this._data instanceof Uint8Array)S(this._layout),S(this._layout.length===a.length),o=this._layout.map((e,t)=>{const i=Math.ceil(this.codedHeight/a[t].heightDivisor);return{data:this._data.subarray(e.offset,e.offset+e.stride*i),stride:e.stride}});else{const e=this._data.getContext("2d");S(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);o=[{data:B(t.data),stride:4*this.codedWidth}]}const l=[],c=a.length;for(let d=0;di.byteLength)throw new Error("Source buffer OOB read.");if(a+c>s.byteLength)throw new Error("Destination buffer OOB write.");const n=i.subarray(r,r+c);s.set(n,a),r+=t,a+=e.destinationStride}l.push(u)}if(void 0!==t.format){const e=this.format.startsWith("RGB")!==t.format.startsWith("RGB"),i=this.format.includes("X")&&t.format.includes("A");if(e||i)for(let t=0;te+t.data.byteLength,0),i=new Uint8Array(t);let r=0;const n=[];for(const s of e)i.set(s.data,r),n.push(r),r+=s.data.byteLength;return new VideoFrame(i,{format:this.format,layout:e.map((e,t)=>({offset:n[t],stride:e.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}return Ea(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(S(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(e,t,i,r,n,s,a,o,l){let c=0,u=0,d=this.displayWidth,h=this.displayHeight,f=0,m=0,p=this.displayWidth,g=this.displayHeight;if(void 0!==s?(c=t,u=i,d=r,h=n,f=s,m=a,void 0!==o?(p=o,g=l):(p=d,g=h)):(f=t,m=i,void 0!==r&&(p=r,g=n)),!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(c))throw new TypeError("sx must be a number.");if(!Number.isFinite(u))throw new TypeError("sy must be a number.");if(!Number.isFinite(d)||d<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(h)||h<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(f))throw new TypeError("dx must be a number.");if(!Number.isFinite(m))throw new TypeError("dy must be a number.");if(!Number.isFinite(p)||p<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(g)||g<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:c,sy:u,sWidth:d,sHeight:h}=this._rotateSourceRegion(c,u,d,h,this.rotation));const k=this.toCanvasImageSource();e.save();const y=f+p/2,b=m+g/2;e.translate(y,b),e.rotate(this.rotation*Math.PI/180);const T=this.rotation%180===0?1:p/g;e.scale(1/T,T),e.drawImage(k,c,u,d,h,-p/2,-g/2,p,g),e.restore()}drawWithFit(e,t){var i,r,n,s,a,o,l,c,u;if(!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&Ra(t.crop,"options.");const d=e.canvas.width,h=e.canvas.height,f=null!=(i=t.rotation)?i:this.rotation,[m,p]=f%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let g,k,y,b,T=t.crop;T&&(T=_a(T,m,p));const{sx:v,sy:S,sWidth:w,sHeight:P}=this._rotateSourceRegion(null!=(n=null==(r=t.crop)?void 0:r.left)?n:0,null!=(a=null==(s=t.crop)?void 0:s.top)?a:0,null!=(l=null==(o=t.crop)?void 0:o.width)?l:m,null!=(u=null==(c=t.crop)?void 0:c.height)?u:p,f);if("fill"===t.fit)g=0,k=0,y=d,b=h;else{const[e,i]=t.crop?[t.crop.width,t.crop.height]:[m,p],r="contain"===t.fit?Math.min(d/e,h/i):Math.max(d/e,h/i);y=e*r,b=i*r,g=(d-y)/2,k=(h-b)/2}e.save();const I=f%180===0?1:y/b;e.translate(d/2,h/2),e.rotate(f*Math.PI/180),e.scale(1/I,I),e.translate(-d/2,-h/2),e.drawImage(this.toCanvasImageSource(),v,S,w,P,g,k,y,b),e.restore()}_rotateSourceRegion(e,t,i,r,n){return 90===n?[e,t,i,r]=[t,this.squarePixelHeight-e-i,r,i]:180===n?[e,t]=[this.squarePixelWidth-e-i,this.squarePixelHeight-t-r]:270===n&&([e,t,i,r]=[this.squarePixelWidth-t-r,e,r,i]),{sx:e,sy:t,sWidth:i,sHeight:r}}_drawWithFitAndMipmapping(e,t,i){const r=e.width,n=e.height,[s,a]=i.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],o=i.crop?i.crop.width:s,l=i.crop?i.crop.height:a;let u=0;2*r0?Ca(d,h):{canvas:e,context:t,isNew:i.targetIsFresh};m.imageSmoothingQuality="high",i.fillBlack?(m.fillStyle="black",m.fillRect(0,0,d,h)):p||m.clearRect(0,0,d,h),this.drawWithFit(m,{fit:i.fit,rotation:i.rotation,crop:i.crop}),m.globalCompositeOperation="copy";for(let g=u;g>1;g--){const e=r*c(2,g),t=n*c(2,g);m.drawImage(f,0,0,e,t,0,0,e/2,t/2)}m.globalCompositeOperation="source-over",u>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(f,0,0,2*r,2*n,0,0,r,n),t.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(S(null!==this._data),this._data instanceof Ta||this._data instanceof Uint8Array){const e=this.toVideoFrame();return queueMicrotask(()=>e.close()),e}return this._data}transform(e){return p(this,null,function*(){var t,i,r,n,s;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.width&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(void 0!==e.height&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(void 0!==e.roundDimensionsTo&&(!Number.isInteger(e.roundDimensionsTo)||e.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(void 0!==e.fit&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==e.width&&void 0!==e.height&&void 0===e.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==e.rotate&&![0,90,180,270].includes(e.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(void 0!==e.crop&&Ra(e.crop,"options."),void 0!==e.alpha&&!["keep","discard"].includes(e.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");const a=w(this.rotation+(null!=(t=e.rotate)?t:0)),[o,l]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let c=e.crop;c&&(c=_a(c,o,l));const u=c?c.width:o,d=c?c.height:l,h=u/d;let f,m;void 0!==e.width&&void 0===e.height?(f=e.width,m=f/h):void 0===e.width&&void 0!==e.height?(m=e.height,f=m*h):void 0!==e.width&&void 0!==e.height?(f=e.width,m=e.height):(f=u,m=d),f=se(f,null!=(i=e.roundDimensionsTo)?i:1),m=se(m,null!=(r=e.roundDimensionsTo)?r:1);const p={width:f,height:m,fit:null!=(n=e.fit)?n:"fill",rotation:a,crop:null!=c?c:{left:0,top:0,width:o,height:l},alpha:null!=(s=e.alpha)?s:"keep"};for(const e of Pa){let t=e(this,p);if(Pe(t)&&(t=yield t),null!==t)return t}const{canvas:g,context:k,isNew:y}=Ca(p.width,p.height);return this._drawWithFitAndMipmapping(g,k,{fit:p.fit,rotation:p.rotation,crop:p.crop,targetIsFresh:y,fillBlack:"discard"===p.alpha}),new wa(g,{timestamp:this.timestamp,duration:this.duration,rotation:0})})}setRotation(e){if(![0,90,180,270].includes(e))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}setDuration(e){if(!Number.isFinite(e)||e<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=e}setEncodeOptions(e){if(!e||"object"!==typeof e)throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=e}[Symbol.dispose](){this.close()}}const Pa=[],Ia=[];let xa=0;const Ca=(e,t)=>{for(const n of Ia)if(n.canvas.width===e&&n.canvas.height===t)return n.age=xa++,{canvas:n.canvas,context:n.context,isNew:!1};let i;if("undefined"!==typeof OffscreenCanvas)i=new OffscreenCanvas(e,t);else{if("undefined"===typeof window||"undefined"===typeof document)throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");i=document.createElement("canvas"),i.width=e,i.height=t}const r=i.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return Ia.length>=3&&Ia.splice(Fe(Ia,e=>e.age),1),Ia.push({canvas:i,context:r,age:xa++}),{canvas:i,context:r,isNew:!0}};class Ba{constructor(e){var t,i,r,n;if(void 0!==e){if(!e||"object"!==typeof e)throw new TypeError("init.colorSpace, when provided, must be an object.");const t=Object.keys(F);if(null!=e.primaries&&!t.includes(e.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${t.join(", ")}.`);const i=Object.keys(D);if(null!=e.transfer&&!i.includes(e.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${i.join(", ")}.`);const r=Object.keys(N);if(null!=e.matrix&&!r.includes(e.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${r.join(", ")}.`);if(null!=e.fullRange&&"boolean"!==typeof e.fullRange)throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=null!=(t=null==e?void 0:e.primaries)?t:null,this.transfer=null!=(i=null==e?void 0:e.transfer)?i:null,this.matrix=null!=(r=null==e?void 0:e.matrix)?r:null,this.fullRange=null!=(n=null==e?void 0:e.fullRange)?n:null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}const Ea=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,_a=(e,t,i)=>{const r=Math.min(e.left,t),n=Math.min(e.top,i),s=Math.min(e.width,t-r),a=Math.min(e.height,i-n);return S(s>=0),S(a>=0),{left:r,top:n,width:s,height:a}},Ra=(e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},Fa=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!==typeof e.format)throw new TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw new TypeError("options.layout, when provided, must be an array.");for(const t of e.layout){if(!t||"object"!==typeof t)throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==e.rect){if(!e.rect||"object"!==typeof e.rect)throw new TypeError("options.rect, when provided, must be an object.");if(void 0!==e.rect.x&&(!Number.isInteger(e.rect.x)||e.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(void 0!==e.rect.y&&(!Number.isInteger(e.rect.y)||e.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(void 0!==e.rect.width&&(!Number.isInteger(e.rect.width)||e.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(void 0!==e.rect.height&&(!Number.isInteger(e.rect.height)||e.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},Aa=(e,t,i)=>{const r=Da(e),n=[];let s=0;for(const a of r){const e=Math.ceil(t/a.widthDivisor),r=Math.ceil(i/a.heightDivisor),o=e*a.sampleBytes,l=o*r;n.push({offset:s,stride:o}),s+=l}return n},Da=e=>{const t=(e,t,i,r,n)=>{const s=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:i,heightDivisor:r},{sampleBytes:t,widthDivisor:i,heightDivisor:r}];return n&&s.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),s};switch(e){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:J(e),S(!1)}},Ma=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,n=Na(i,r,e.codedWidth,e.codedHeight,e.format),s=t.layout;let a;if(t.format&&t.format!==e.format){if(!["RGBA","RGBX","BGRA","BGRX"].includes(t.format))throw new Error("NotSupportedError: Invalid destination format.");a=t.format}else a=e.format;return La(n,a,s)},Na=(e,t,i,r,n)=>{const s=d({},e);if(void 0!==t){if(0===t.width||0===t.height)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>i)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");s.x=t.x||0,s.y=t.y||0,s.width=t.width||0,s.height=t.height||0}if(!Oa(n,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},Oa=(e,t)=>{if(null===e)return!0;const i=Da(e);for(let r=0;r{const r=Da(t),n=r.length;if(void 0!==i&&i.length!==n)throw new TypeError(`Layout must have ${n} planes.`);let s=0;const a=[],o=[];for(let l=0;l4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(h),s=Math.max(s,h);for(let e=0;e 0.");if(!Number.isInteger(e.numberOfChannels)||0===e.numberOfChannels)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(null==e?void 0:e.timestamp))throw new TypeError("init.timestamp must be a number.");const t=e.data.byteLength/(Wa(e.format)*e.numberOfChannels);if(!Number.isInteger(t))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");let i;if(this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=t,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp,this.duration=t/e.sampleRate,e.data instanceof ArrayBuffer)i=new Uint8Array(e.data);else{if(!ArrayBuffer.isView(e.data))throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");i=new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}const r=this.numberOfFrames*this.numberOfChannels*Wa(this.format);if(i.byteLength=this.numberOfFrames)throw new RangeError("frameOffset out of range");const s=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-n;if(s>this.numberOfFrames-n)throw new RangeError("frameCount out of range");const a=Wa(r),o=Ha(r);if(o&&e.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!o&&0!==e.planeIndex)throw new RangeError("planeIndex out of range");return(o?s:s*this.numberOfChannels)*a}copyTo(e,t){if(!U(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!za.has(t.format))throw new TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:i,frameCount:r,frameOffset:n}=t;let{planeIndex:s}=t,a=this.format;const o=null!=i?i:this.format;if(!o)throw new Error("Destination format not determined");const l=this.numberOfFrames,c=this.numberOfChannels,u=null!=n?n:0;if(u>=l)throw new RangeError("frameOffset out of range");const d=void 0!==r?r:l-u;if(d>l-u)throw new RangeError("frameCount out of range");const h=Wa(o),f=Ha(o);if(f&&s>=c)throw new RangeError("planeIndex out of range");if(!f&&0!==s)throw new RangeError("planeIndex out of range");const m=(f?d:d*c)*h;if(e.byteLength2&&o!==a)return void Xa(this._data,p,a,o,c,s,u,d);try{return void this._data.copyTo(e,{planeIndex:s,frameOffset:u,frameCount:d,format:o})}catch(w){if("f32-planar"===o)throw w;a="f32-planar"}}const k=Va(a),y=Wa(a),b=Ha(a);let T;if(this._data instanceof Ua){const e=e=>{const t=this._data.getDataPlane(e);if(!(t instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const i=l*y*(b?1:c);if(t.byteLength!==i)throw new TypeError(`Data plane ${e} has invalid size. Expected exactly ${i} bytes, got ${t.byteLength} bytes.`);return t};if(b)if(f)T=e(s),s=0;else{T=new Uint8Array(l*y*c);for(let t=0;tthis.numberOfFrames)throw new RangeError("startFrame out of range.");if(t>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(t0)for(let r=0;r0&&this.copyTo(n,{planeIndex:0,format:this.format,frameOffset:e,frameCount:i});return new qa({data:n,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(null==ba||ba.unregister(this),this._data instanceof Ua?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Ka(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof Ua?this._createAudioDataFromData():Ka(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(Ha(this.format)){const e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels);for(let i=0;i0;){const n=Math.min(s,o),l=new Float32Array(i*n);for(let t=0;t0;){const n=Math.min(s,o),c=new Float32Array(i*n);for(let t=0;t{switch(e){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},Ha=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},Va=e=>{switch(e){case"u8":case"u8-planar":return(e,t)=>(e.getUint8(t)-128)/128;case"s16":case"s16-planar":return(e,t)=>e.getInt16(t,!0)/32768;case"s32":case"s32-planar":return(e,t)=>e.getInt32(t,!0)/2147483648;case"f32":case"f32-planar":return(e,t)=>e.getFloat32(t,!0)}},ja=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,ie(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,ie(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,ie(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},Ka=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,Xa=(e,t,i,r,n,s,a,o)=>{const l=Va(i),c=ja(r),u=Wa(i),d=Wa(r),h=Ha(i);if(Ha(r))if(h){const r=new ArrayBuffer(o*u),n=E(r);e.copyTo(r,{planeIndex:s,frameOffset:a,frameCount:o,format:i});for(let e=0;e{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!==typeof e.metadataOnly)throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!==typeof e.verifyKeyPackets)throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(void 0!==e.skipLiveWait&&"boolean"!==typeof e.skipLiveWait)throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},Ya=e=>{if(!Ee(e))throw new TypeError("timestamp must be a number.")},Ja=(e,t,i)=>i.verifyKeyPackets?t.then(t=>p(null,null,function*(){if(!t||"delta"===t.type)return t;const i=yield e.determinePacketType(t);return i&&(t.type=i),t})):t;class Za{constructor(e){if(!(e instanceof po))throw new TypeError("track must be an InputTrack.");this._track=e}getFirstPacket(){return p(this,arguments,function*(e={}){if(Qa(e),this._track.input._disposed)throw new Ro;return Ja(this._track,this._track._backing.getFirstPacket(e),e)})}getFirstKeyPacket(){return p(this,arguments,function*(e={}){Qa(e);const t=yield this.getFirstPacket(e);return t?"key"===t.type?t:this.getNextKeyPacket(t,e):null})}getPacket(e){return p(this,arguments,function*(e,t={}){if(Ya(e),Qa(t),this._track.input._disposed)throw new Ro;return Ja(this._track,this._track._backing.getPacket(e,t),t)})}getNextPacket(e){return p(this,arguments,function*(e,t={}){if(!(e instanceof Mi))throw new TypeError("packet must be an EncodedPacket.");if(Qa(t),this._track.input._disposed)throw new Ro;return Ja(this._track,this._track._backing.getNextPacket(e,t),t)})}getKeyPacket(e){return p(this,arguments,function*(e,t={}){if(Ya(e),Qa(t),this._track.input._disposed)throw new Ro;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const i=yield this._track._backing.getKeyPacket(e,t);if(!i)return i;S("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getKeyPacket(i.timestamp-1/(yield this._track.getTimeResolution()),t):i})}getNextKeyPacket(e){return p(this,arguments,function*(e,t={}){if(!(e instanceof Mi))throw new TypeError("packet must be an EncodedPacket.");if(Qa(t),this._track.input._disposed)throw new Ro;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const i=yield this._track._backing.getNextKeyPacket(e,t);if(!i)return i;S("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getNextKeyPacket(i,t):i})}packets(e,t,i={}){if(void 0!==e&&!(e instanceof Mi))throw new TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!(null==i?void 0:i.metadataOnly))throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof Mi))throw new TypeError("endPacket must be an EncodedPacket.");if(Qa(i),this._track.input._disposed)throw new Ro;const r=[];let{promise:n,resolve:s}=$(),{promise:a,resolve:o}=$(),l=!1,c=!1,u=null,d=!1;const h=[],f=()=>Math.max(2,h.length);(()=>p(this,null,function*(){let u=null!=e?e:yield this.getFirstPacket(i);for(;u&&!c&&!this._track.input._disposed&&!(t&&u.sequenceNumber>=(null==t?void 0:t.sequenceNumber));)r.length>f()?(({promise:a,resolve:o}=$()),yield a):(r.push(u),s(),({promise:n,resolve:s}=$()),u=yield this.getNextPacket(u,i));l=!0,s()}))().catch(e=>{d||(u=e,d=!0,s())});const m=this._track;return{next(){return p(this,null,function*(){for(;;){if(m.input._disposed)throw new Ro;if(c)return{value:void 0,done:!0};if(d)throw u;if(r.length>0){const e=r.shift(),t=performance.now();for(h.push(t);h.length>0&&t-h[0]>=1e3;)h.shift();return o(),{value:e,done:!1}}if(l)return{value:void 0,done:!0};yield n}})},return(){return p(this,null,function*(){return c=!0,o(),s(),{value:void 0,done:!0}})},throw(e){return p(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}class eo{constructor(e,t){this.onSample=e,this.onError=t}}class to{mediaSamplesInRange(e=-1/0,t=1/0,i){Ya(e),Ya(t);const r=[];let n=!1,s=null,{promise:a,resolve:o}=$(),{promise:l,resolve:c}=$(),u=!1,f=!1,m=!1,g=null,k=null,y=!1;const b=h(d({},i),{verifyKeyPackets:!0,metadataOnly:!1});(()=>p(this,null,function*(){var i;g=yield this._createDecoder(i=>{c(),i.timestamp>=t&&(f=!0),f?i.close():(s&&(i.timestamp>e?(r.push(s),n=!0):s.close()),i.timestamp>=e&&(r.push(i),n=!0),s=n?null:i,r.length>0&&(o(),({promise:a,resolve:o}=$())))},e=>{y||(k=e,y=!0,o())});const d=this._createPacketSink(),h=null!=(i=yield d.getKeyPacket(e,b))?i:yield d.getFirstKeyPacket(b);let p=h;const T=d.packets(null!=h?h:void 0,void 0,b);for(yield T.next();p&&!f&&!this._track.input._disposed;){const e=io(r.length);if(r.length+g.getDecodeQueueSize()>e){({promise:l,resolve:c}=$()),yield l;continue}g.decode(p);const t=yield T.next();if(t.done)break;p=t.value}yield T.return(),m||this._track.input._disposed||(yield g.flush()),!n&&s&&r.push(s),u=!0,o()}))().catch(e=>{y||(k=e,y=!0,o())}).finally(()=>{null==g||g.close()});const T=this._track,v=()=>{null==s||s.close();for(const e of r)e.close()};return{next(){return p(this,null,function*(){for(;;){if(T.input._disposed)throw m=!0,f=!0,v(),new Ro;if(m)return{value:void 0,done:!0};if(y)throw m=!0,f=!0,v(),k;if(r.length>0){const e=r.shift();return c(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};yield a}})},return(){return p(this,null,function*(){return m=!0,f=!0,c(),o(),v(),{value:void 0,done:!0}})},throw(e){return p(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(e,t){(e=>{if(!(Symbol.iterator in e)&&!(Symbol.asyncIterator in e))throw new TypeError("Argument must be an iterable or async iterable.")})(e);const i=function(e){return k(this,null,function*(){Symbol.iterator in e?yield*y(e[Symbol.iterator]()):yield*y(e[Symbol.asyncIterator]())})}(e),r=[],n=[];let{promise:s,resolve:a}=$(),{promise:o,resolve:l}=$(),c=!1,u=!1,f=null,m=null,g=!1;const T=e=>{n.push(e),a(),({promise:s,resolve:a}=$())},v=h(d({},t),{verifyKeyPackets:!0,metadataOnly:!1});(()=>p(this,null,function*(){f=yield this._createDecoder(e=>{if(l(),u)return void e.close();let t=0;for(;r.length>0&&e.timestamp-r[0]>-1e-10;)t++,r.shift();if(t>0)for(let i=0;i{g||(m=e,g=!0,a())});const e=this._createPacketSink();let t=null,s=null,d=-1;const h=()=>p(this,null,function*(){S(s),S(f);let t=s;for(f.decode(t);t.sequenceNumberi&&!u;)({promise:o,resolve:l}=$()),yield o;if(u)break;const r=yield e.getNextPacket(t,v);S(r),f.decode(r),t=r}d=-1}),k=()=>p(this,null,function*(){S(f),yield f.flush();for(let e=0;e{g||(m=e,g=!0,a())}).finally(()=>{null==f||f.close()});const w=this._track,P=()=>{for(const e of n)null==e||e.close()};return{next(){return p(this,null,function*(){for(;;){if(w.input._disposed)throw u=!0,P(),new Ro;if(u)return{value:void 0,done:!0};if(g)throw u=!0,P(),m;if(n.length>0){const e=n.shift();return S(void 0!==e),l(),{value:e,done:!1}}if(c)return{value:void 0,done:!0};yield s}})},return(){return p(this,null,function*(){return u=!0,l(),a(),P(),{value:void 0,done:!0}})},throw(e){return p(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}const io=e=>0===e?40:8;class ro extends eo{constructor(e,t,i,r,n,s){var a,o,l,c,u,f,m,p;super(e,t),this.codec=i,this.decoderConfig=r,this.rotation=n,this.timeResolution=s,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new pe,this.customDecoderQueueSize=0,this.inputTimestamps=[],this.sampleQueue=[],this.currentPacketIndex=0,this.raslSkipped=!1,this.alphaDecoder=null,this.alphaHadKeyframe=!1,this.colorQueue=[],this.alphaQueue=[],this.merger=null,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue=[],this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,this.finalSamples=[],this.mergeAlphaPromises=[];const g=$a.find(e=>e.supports(i,r));if(g)this.customDecoder=new g,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof wa))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=e=>{if(this.alphaQueue.length>0){const t=this.alphaQueue.shift();S(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(ve()){if("avc"===i&&this.decoderConfig.description){const e=dt(B(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=ft(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig=h(d({},this.decoderConfig),{hardwareAcceleration:"prefer-software"})),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=pt(t),this.decoderConfig=h(d({},this.decoderConfig),{description:ut(e)})))}}L(this.decoderConfig.colorSpace)||(this.decoderConfig=h(d({},this.decoderConfig),{colorSpace:{primaries:null!=(o=null==(a=this.decoderConfig.colorSpace)?void 0:a.primaries)?o:"bt709",matrix:null!=(c=null==(l=this.decoderConfig.colorSpace)?void 0:l.matrix)?c:"bt709",transfer:null!=(f=null==(u=this.decoderConfig.colorSpace)?void 0:u.transfer)?f:"bt709",fullRange:null!=(p=null==(m=this.decoderConfig.colorSpace)?void 0:m.fullRange)&&p}}))}const t=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){var e,t;return this.customDecoder?this.customDecoderQueueSize:(S(this.decoder),Math.max(this.decoder.decodeQueueSize,null!=(t=null==(e=this.alphaDecoder)?void 0:e.decodeQueueSize)?t:0))}decode(e){if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--);else{if(S(this.decoder),ke()||X(this.inputTimestamps,e.timestamp,e=>e),ve()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const n of rt(e.data,this.decoderConfig)){const r=nt(e.data[n.offset]);if(i||(i=r>=1&&r<=5),r===Ye.AUD){if(i)break;t.length=0}r>=20&&r<=31||t.push(e.data.subarray(n.offset,n.offset+n.length))}if(!this.decoderConfig.description)for(let e=0;e{if(t.description){const i=3&B(t.description)[4];return lt(e,i+1)}return ot(e)})(t,this.decoderConfig);e=new Mi(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=Et(e.data,this.decoderConfig);t&&(e=new Mi(t,e.type,e.timestamp,e.duration))}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}decodeAlphaData(e){if(!e.sideData.alpha)return void this.pushNullAlphaFrame();if(this.merger||(this.merger=new so),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();S(void 0!==t),this.mergeAlpha(t,e)}else this.alphaQueue.push(e);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){const e=this.colorQueue.shift();S(void 0!==e),this.mergeAlpha(e,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},t=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}const t=Ot(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===t),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(null!=t?t:e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(const t of gt(e,this.decoderConfig)){const i=kt(e[t.offset]);if(i===Ze.RASL_N||i===Ze.RASL_R)return!0}return!1}sampleHandler(e){if(ke()){if(this.sampleQueue.length>0&&e.timestamp>=P(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}X(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();S(void 0!==t),e.setTimestamp(t),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}mergeAlpha(e,t){return p(this,null,function*(){const i=$();this.mergeAlphaPromises.push(i.promise);const r={sample:null};this.finalSamples.push(r);try{if(t){S(this.merger);const i=yield this.merger.merge(e,t);r.sample=new wa(i)}else r.sample=new wa(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(n){G(this.finalSamples,r),this.onError(n)}finally{G(this.mergeAlphaPromises,i.promise),i.resolve()}})}flush(){return p(this,null,function*(){var e;if(this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(S(this.decoder),yield Promise.all([this.decoder.flush(),null==(e=this.alphaDecoder)?void 0:e.flush()]),yield Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,this.alphaHadKeyframe=!1,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue.length=0,this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1),ke()){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1})}close(){var e;this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(S(this.decoder),"closed"!==this.decoder.state&&this.decoder.close(),this.alphaDecoder&&"closed"!==this.alphaDecoder.state&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,null==(e=this.merger)||e.close());for(const t of this.sampleQueue)t.close();this.sampleQueue.length=0}}let no=null;class so{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!no){const e=new Blob([`(${ao.toString()})()`],{type:"application/javascript"});no=URL.createObjectURL(e)}const e=ie(navigator.hardwareConcurrency,1,4);for(let t=0;t{const t=e.data,i=this.pendingRequests.get(t.id);i&&(this.pendingRequests.delete(t.id),"error"in t?i.reject(new Error(t.error)):i.resolve(t.frame))}),e.addEventListener("error",e=>{const t=new Error(e.message||"Color/alpha merge worker error.");for(const i of this.pendingRequests.values())i.reject(t);this.pendingRequests.clear()}),this.workers.push(e)}}const i=this.nextRequestId++,r=$();this.pendingRequests.set(i,r);const n=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,n.postMessage({id:i,color:e,alpha:t},{transfer:[e,t]}),r.promise}close(){for(const t of this.workers)t.terminate();this.workers.length=0;const e=new Error("Color/alpha merger closed.");for(const t of this.pendingRequests.values())t.reject(e);this.pendingRequests.clear()}}const ao=()=>{let e=null,t=null,i=Promise.resolve();self.addEventListener("message",e=>{const{id:t,color:n,alpha:s}=e.data;i=i.then(()=>p(null,null,function*(){try{const e=yield r(n,s);self.postMessage({id:t,frame:e},{transfer:[e]})}catch(e){self.postMessage({id:t,error:e.message})}finally{n.close(),s.close()}}))});const r=(e,t)=>p(null,null,function*(){const i=e.format,r=t.format;if(!i||!r)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");const o=i.includes("P10"),l=i.includes("P12"),c=r.includes("P10"),u=r.includes("P12");if(c!==o||u!==l)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${i}', alpha: '${r}').`);if("RGBX"===i||"RGBA"===i||"BGRX"===i||"BGRA"===i)return yield n(e,t,i);if("I420"===i||"I420P10"===i||"I420P12"===i||"I422"===i||"I422P10"===i||"I422P12"===i||"I444"===i||"I444P10"===i||"I444P12"===i)return yield s(e,t,i);if("NV12"===i)return yield a(e,t);throw new Error(`CPU color/alpha merging does not support format '${i}'.`)}),n=(e,t,i)=>p(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=new Uint8Array(4*d);yield e.copyTo(h);const f=yield o(t,c,u,1);for(let e=0,t=3;ep(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=i.includes("P10"),h=i.includes("P12"),f=d||h?2:1;let m,p;i.startsWith("I420")?(m=Math.ceil(c/2),p=Math.ceil(u/2)):i.startsWith("I422")?(m=Math.ceil(c/2),p=u):(m=c,p=u);const g=c*u,k=g*f,y=m*p*f,b=new Uint8Array(k+2*y+g*f);yield e.copyTo(b);const T=yield o(t,c,u,f),v=k+2*y;b.set(T,v);const S={format:i.slice(0,4)+"A"+i.slice(4),codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[b.buffer]};return new VideoFrame(b,S)}),a=(e,i)=>p(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=Math.ceil(c/2)*Math.ceil(u/2),f=e.allocationSize();t&&t.byteLength===f||(t=new Uint8Array(f)),yield e.copyTo(t);const m=new Uint8Array(d+2*h+d);m.set(t.subarray(0,d),0);const p=d,g=d+h,k=d;for(let e=0;ep(null,null,function*(){const s=t.allocationSize();e&&e.byteLength===s||(e=new Uint8Array(s)),yield t.copyTo(e);const a=t.format;if("RGBA"===a||"BGRA"===a||"RGBX"===a||"BGRX"===a){const t="RGBA"===a||"RGBX"===a?0:2,n=i*r;for(let i=0;i{if(!e||"object"!==typeof e)throw new TypeError("decoderOptions must be an object.");if(void 0!==e.hardwareAcceleration&&!["no-preference","prefer-hardware","prefer-software"].includes(e.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(void 0!==e.optimizeForLatency&&"boolean"!==typeof e.optimizeForLatency)throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")};class lo extends to{constructor(e,t={}){if(!(e instanceof yo))throw new TypeError("videoTrack must be an InputVideoTrack.");oo(t),super(),this._track=e,this._decoderOptions=t}_createDecoder(e,t){return p(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof VideoDecoder)throw new Error(Se("VideoDecoder"));throw new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getRotation();let n=yield this._track.getDecoderConfig();const s=yield this._track.getTimeResolution();return S(i&&n),n=h(d({},n),{hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency}),new ro(e,t,i,n,r,s)})}_createPacketSink(){return new Za(this._track)}getSample(e){return p(this,arguments,function*(e,t={}){Ya(e);try{for(var i,r,n,s=b(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class co{constructor(e,t={}){var i,r,n;if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof yo))throw new TypeError("videoTrack must be an InputVideoTrack.");if(t&&"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.alpha&&"boolean"!==typeof t.alpha)throw new TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==t.width&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(void 0!==t.height&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(void 0!==t.fit&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==t.width&&void 0!==t.height&&void 0===t.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==t.crop&&Ra(t.crop,"options."),void 0!==t.poolSize&&("number"!==typeof t.poolSize||!Number.isInteger(t.poolSize)||t.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");void 0!==t.decoderOptions&&oo(t.decoderOptions),this._videoTrack=e,this._alpha=null!=(i=t.alpha)&&i,this._options=t,this._fit=null!=(r=t.fit)?r:"fill",this._videoSampleSink=new lo(e,t.decoderOptions),this._canvasPool=Array.from({length:null!=(n=t.poolSize)?n:0},()=>null)}_ensureInit(){var e;return null!=(e=this._initPromise)?e:this._initPromise=(()=>p(this,null,function*(){var e;const t=this._options,i=this._videoTrack,r=null!=(e=t.rotation)?e:yield i.getRotation(),n=yield i.getSquarePixelWidth(),s=yield i.getSquarePixelHeight(),[a,o]=r%180===0?[n,s]:[s,n];let l=t.crop;l&&(l=_a(l,a,o));let[c,u]=l?[l.width,l.height]:[a,o];const d=c/u;void 0!==t.width&&void 0===t.height?(c=t.width,u=Math.round(c/d)):void 0===t.width&&void 0!==t.height?(u=t.height,c=Math.round(u*d)):void 0!==t.width&&void 0!==t.height&&(c=t.width,u=t.height),this._width=c,this._height=u,this._rotation=r,this._crop=l}))()}_videoSampleToWrappedCanvas(e){const t=this._width,i=this._height;let r=this._canvasPool[this._nextCanvasIndex],n=!1;r||("undefined"!==typeof document?(r=document.createElement("canvas"),r.width=t,r.height=i):r=new OffscreenCanvas(t,i),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=r),n=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);const s=r.getContext("2d",{alpha:this._alpha||be()});S(s),e._drawWithFitAndMipmapping(r,s,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:n,fillBlack:!this._alpha&&be()});const a={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),a}getCanvas(e,t){return p(this,null,function*(){Ya(e),yield this._ensureInit();const i=yield this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)})}canvases(e,t,i){return k(this,null,function*(){yield new g(this._ensureInit()),yield*y(te(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e)))})}canvasesAtTimestamps(e,t){return k(this,null,function*(){yield new g(this._ensureInit()),yield*y(te(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e)))})}}class uo extends eo{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new pe,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const n=t=>{let i=t.timestamp;null!==this.expectedFirstTimestamp&&null===this.currentTimestamp&&(this.timestampOffset=this.expectedFirstTimestamp-i),i+=this.timestampOffset,(null===this.currentTimestamp||Math.abs(i-this.currentTimestamp)>=t.duration)&&(this.currentTimestamp=i);const n=this.currentTimestamp;if(this.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();const s=r.sampleRate;t.setTimestamp(Math.round(n*s)/s),e(t)},s=Ga.find(e=>e.supports(i,r));if(s)this.customDecoder=new s,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof qa))throw new TypeError("The argument passed to onSample must be an AudioSample.");n(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:e=>{try{n(new qa(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(S(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--)):(S(this.decoder),null!=this.expectedFirstTimestamp||(this.expectedFirstTimestamp=e.timestamp),this.decoder.decode(e.toEncodedAudioChunk()))}flush(){return p(this,null,function*(){this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(S(this.decoder),yield this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0})}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(S(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class ho extends eo{constructor(e,t,i){super(e,t),this.decoderConfig=i,this.currentTimestamp=null,S(li.includes(i.codec)),this.codec=i.codec;const{dataType:r,sampleSize:n,littleEndian:s}=vi(this.codec);switch(this.inputSampleSize=n,n){case 1:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint8(t)-c(2,7):"signed"===r?this.readInputValue=(e,t)=>e.getInt8(t):"ulaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=~e;128&r&&(r&=-129,t=-1),i=5+((240&r)>>4);const n=(1<(e=>{let t=0,i=0,r=85^e;128&r&&(r&=-129,t=-1),i=4+((240&r)>>4);let n=0;return n=4!==i?1<e.getUint16(t,s)-c(2,15):"signed"===r?this.readInputValue=(e,t)=>e.getInt16(t,s):S(!1);break;case 3:"unsigned"===r?this.readInputValue=(e,t)=>Z(e,t,s)-c(2,23):"signed"===r?this.readInputValue=(e,t)=>((e,t,i)=>Z(e,t,i)<<8>>8)(e,t,s):S(!1);break;case 4:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint32(t,s)-c(2,31):"signed"===r?this.readInputValue=(e,t)=>e.getInt32(t,s):"float"===r?this.readInputValue=(e,t)=>e.getFloat32(t,s):S(!1);break;case 8:"float"===r?this.readInputValue=(e,t)=>e.getFloat64(t,s):S(!1);break;default:J(n),S(!1)}switch(n){case 1:"ulaw"===r||"alaw"===r?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(e,t,i)=>e.setUint8(t,i+c(2,7)));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i<<8,!0);break;case 4:this.outputSampleSize=4,"float"===r?(this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0)):(this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0);break;default:J(n),S(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=E(e.data),i=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,r=i*this.decoderConfig.numberOfChannels*this.outputSampleSize,n=new ArrayBuffer(r),s=new DataView(n);for(let c=0;c=a)&&(this.currentTimestamp=e.timestamp);const o=this.currentTimestamp;this.currentTimestamp+=a;const l=new qa({format:this.outputFormat,data:n,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:i,timestamp:o});this.onSample(l)}flush(){return p(this,null,function*(){})}close(){}}class fo extends to{constructor(e){if(!(e instanceof bo))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=e}_createDecoder(e,t){return p(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof AudioDecoder)throw new Error(Se("AudioDecoder"));throw new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getDecoderConfig();return S(i&&r),li.includes(r.codec)?new ho(e,t,r):new uo(e,t,i,r)})}_createPacketSink(){return new Za(this._track)}getSample(e){return p(this,arguments,function*(e,t={}){Ya(e);try{for(var i,r,n,s=b(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class mo{constructor(e){if(!(e instanceof bo))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new fo(e)}_audioSampleToWrappedArrayBuffer(e){const t={buffer:e.toAudioBuffer(),timestamp:e.timestamp,duration:e.duration};return e.close(),t}getBuffer(e,t){return p(this,null,function*(){Ya(e);const i=yield this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)})}buffers(e,t,i){return te(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return te(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class po{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof yo}isAudioTrack(){return this instanceof bo}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}getInternalCodecId(){return p(this,null,function*(){return this._backing.getInternalCodecId()})}get internalCodecId(){return go(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}getLanguageCode(){return p(this,null,function*(){return this._backing.getLanguageCode()})}get languageCode(){return go(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}getName(){return p(this,null,function*(){return this._backing.getName()})}get name(){return go(this._backing.getName(),"name","getName")}getTimeResolution(){return p(this,null,function*(){return this._backing.getTimeResolution()})}get timeResolution(){return go(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}isRelativeToUnixEpoch(){return p(this,null,function*(){return this._backing.isRelativeToUnixEpoch()})}getUnixTimeForTimestamp(e){return p(this,null,function*(){return this._backing.getUnixTimeForTimestamp(e)})}hasUnixTimeMapping(){return p(this,null,function*(){return null!==(yield this._backing.getUnixTimeForTimestamp(yield this.getFirstTimestamp()))})}getDisposition(){return p(this,null,function*(){return this._backing.getDisposition()})}get disposition(){return go(this._backing.getDisposition(),"disposition","getDisposition")}getBitrate(){return p(this,null,function*(){return this._backing.getBitrate()})}getAverageBitrate(){return p(this,null,function*(){return this._backing.getAverageBitrate()})}getFirstTimestamp(){return p(this,null,function*(){var e;const t=yield this._backing.getFirstPacket({metadataOnly:!0});return null!=(e=null==t?void 0:t.timestamp)?e:0})}computeDuration(e){return p(this,null,function*(){var t,i;const r=yield this._backing.getPacket(1/0,d({metadataOnly:!0},e)),n=(null!=(t=null==r?void 0:r.timestamp)?t:0)+(null!=(i=null==r?void 0:r.duration)?i:0);return ae(n,yield this.getTimeResolution())})}getDurationFromMetadata(){return p(this,arguments,function*(e={}){return this._backing.getDurationFromMetadata(e)})}computePacketStats(e=1/0,t){return p(this,null,function*(){const i=new Za(this);let r=1/0,n=-1/0,s=0,a=0;try{for(var o,l,c,u=b(i.packets(void 0,void 0,d({metadataOnly:!0},t)));o=!(l=yield u.next()).done;o=!1){const t=l.value;if(s>=e&&t.timestamp>=n)break;r=Math.min(r,t.timestamp),n=Math.max(n,t.timestamp+t.duration),s++,a+=t.byteLength}}catch(l){c=[l]}finally{try{o&&(l=u.return)&&(yield l.call(u))}finally{if(c)throw c[0]}}return{packetCount:s,averagePacketRate:s?Number((s/(n-r)).toPrecision(16)):0,averageBitrate:s?Number((8*a/(n-r)).toPrecision(16)):0}})}isLive(){return p(this,null,function*(){return null!==(yield this._backing.getLiveRefreshInterval())})}getLiveRefreshInterval(){return p(this,null,function*(){return this._backing.getLiveRefreshInterval()})}canBePairedWith(e){if(!(e instanceof po))throw new TypeError("other must be an InputTrack.");return this.input===e.input&&this!==e&&(this._backing.getPairingMask()&e._backing.getPairingMask())!==BigInt("0")}getPairableTracks(e){return p(this,null,function*(){return this.input.getTracks(wo({filter:e=>e.canBePairedWith(this)},e))})}getPairableVideoTracks(e){return p(this,null,function*(){return this.input.getVideoTracks(wo({filter:e=>e.canBePairedWith(this)},e))})}getPairableAudioTracks(e){return p(this,null,function*(){return this.input.getAudioTracks(wo({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableVideoTrack(e){return p(this,null,function*(){return this.input.getPrimaryVideoTrack(wo({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableAudioTrack(e){return p(this,null,function*(){return this.input.getPrimaryAudioTrack(wo({filter:e=>e.canBePairedWith(this)},e))})}hasPairableTrack(e){return p(this,null,function*(){e&&(e=ko(e));const t=yield this.input.getTracks();for(const i of t)if(this.canBePairedWith(i)&&(!e||(yield e(i))))return!0;return!1})}hasPairableVideoTrack(e){return e&&(e=ko(e)),this.hasPairableTrack(t=>p(this,null,function*(){return t.isVideoTrack()&&(!e||(yield e(t)))}))}hasPairableAudioTrack(e){return e&&(e=ko(e)),this.hasPairableTrack(t=>p(this,null,function*(){return t.isAudioTrack()&&(!e||(yield e(t)))}))}}const go=(e,t,i)=>{if(Pe(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},ko=e=>{if(void 0!==e&&"function"!==typeof e)throw new TypeError("predicate, when provided, must be a function.");return e?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("predicate must return or resolve to a boolean value.");return e},r=e(t);return Pe(r)?r.then(i):i(r)}:void 0};class yo extends po{constructor(e,t){super(e,t),this._pixelAspectRatioCache=null,this._backing=t}get type(){return"video"}getCodec(){return p(this,null,function*(){return this._backing.getCodec()})}get codec(){return go(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return p(this,null,function*(){var e,t,i;return null!=(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:"prores"===(yield this._backing.getCodec())})}getCodedWidth(){return p(this,null,function*(){return this._backing.getCodedWidth()})}get codedWidth(){return go(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}getCodedHeight(){return p(this,null,function*(){return this._backing.getCodedHeight()})}get codedHeight(){return go(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}getRotation(){return p(this,null,function*(){return this._backing.getRotation()})}get rotation(){return go(this._backing.getRotation(),"rotation","getRotation")}getSquarePixelWidth(){return p(this,null,function*(){return this._backing.getSquarePixelWidth()})}get squarePixelWidth(){return go(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}getSquarePixelHeight(){return p(this,null,function*(){return this._backing.getSquarePixelHeight()})}get squarePixelHeight(){return go(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}getPixelAspectRatio(){return p(this,null,function*(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=Ae({num:(yield this.getSquarePixelWidth())*(yield this.getCodedHeight()),den:(yield this.getSquarePixelHeight())*(yield this.getCodedWidth())})})}get pixelAspectRatio(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=Ae({num:go(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*go(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:go(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*go(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")})}getDisplayWidth(){return p(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight()})}get displayWidth(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(void 0!==i){const e=go(i,"displayWidth","getDisplayWidth");if(null!==e)return e}const r=go(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return go(r,"displayWidth","getDisplayWidth")}getDisplayHeight(){return p(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth()})}get displayHeight(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(void 0!==i){const e=go(i,"displayHeight","getDisplayHeight");if(null!==e)return e}const r=go(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return go(r,"displayHeight","getDisplayHeight")}getColorSpace(){return p(this,null,function*(){return this._backing.getColorSpace()})}hasHighDynamicRange(){return p(this,null,function*(){const e=yield this._backing.getColorSpace();return"bt2020"===e.primaries||"smpte432"===e.primaries||"pq"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix})}canBeTransparent(){return p(this,null,function*(){return this._backing.canBeTransparent()})}getDecoderConfig(){return p(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return p(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return p(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(S(null!==t),$a.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(yield VideoDecoder.isConfigSupported(e)).supported}catch(e){return ze._error("Error during decodability check:",e),!1}})}determinePacketType(e){return p(this,null,function*(){if(!(e instanceof Mi))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const t=yield this.getCodec();if(null===t)return null;const i=yield this.getDecoderConfig();return S(i),Ot(t,i,e.data)})}computeFrameRateMetrics(){return p(this,arguments,function*(e={}){var t,i;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.targetPacketCount&&(!Ee(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");const r=yield this.getTimeResolution(),n=null!=(t=e.targetPacketCount)?t:256,s=new Za(this),a=[];let o=-1/0,l=0;try{for(var c,u,d,h=b(s.packets(void 0,void 0,{metadataOnly:!0}));c=!(u=yield h.next()).done;c=!1){const e=u.value;if(a.length>=n&&e.timestamp>=o)break;a.push(e.timestamp),o=Math.max(o,e.timestamp),l++}}catch(u){d=[u]}finally{try{c&&(u=h.return)&&(yield u.call(h))}finally{if(d)throw d[0]}}const f=new Float64Array(a.length);for(let b=0;be-t),x=P-1>>1,C=P>>1;let B=0,E=0,_=0;for(const b of I)if(_+=T.get(b),0===B&&_>x&&(B=b),_>C){E=b;break}const R=(k/B+k/E)/2;return{underlyingFrameRate:g,bestGuessFrameRate:null!==g?g:Co(R),minFrameRate:k/S,maxFrameRate:k/v,averageFrameRate:k*P/w,medianFrameRate:R,frameRateIsConstant:null!==g&&1===v&&1===S,probedPacketCount:l}})}}class bo extends po{constructor(e,t){super(e,t),this._backing=t}get type(){return"audio"}getCodec(){return p(this,null,function*(){return this._backing.getCodec()})}get codec(){return go(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return p(this,null,function*(){var e,t,i;return null==(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))||i})}getNumberOfChannels(){return p(this,null,function*(){return this._backing.getNumberOfChannels()})}get numberOfChannels(){return go(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}getSampleRate(){return p(this,null,function*(){return this._backing.getSampleRate()})}get sampleRate(){return go(this._backing.getSampleRate(),"sampleRate","getSampleRate")}getDecoderConfig(){return p(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return p(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return p(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(S(null!==t),Ga.some(i=>i.supports(t,e)))return!0;if(e.codec.startsWith("pcm-"))return!0;if("undefined"===typeof AudioDecoder)return!1;return!0===(yield AudioDecoder.isConfigSupported(e)).supported}catch(e){return ze._error("Error during decodability check:",e),!1}})}determinePacketType(e){return p(this,null,function*(){if(!(e instanceof Mi))throw new TypeError("packet must be an EncodedPacket.");return null===(yield this.getCodec())?null:"key"})}}const To=e=>-(null!=e?e:-1/0),vo=e=>-e,So=e=>{if("object"!==typeof e||!e)throw new TypeError("query must be an object.");if(void 0!==e.filter&&"function"!==typeof e.filter)throw new TypeError("query.filter, when provided, must be a function.");if(void 0!==e.sortBy&&"function"!==typeof e.sortBy)throw new TypeError("query.sortBy, when provided, must be a function.");return{filter:e.filter?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("query.filter must return or resolve to a boolean.");return e},r=e.filter(t);return Pe(r)?r.then(i):i(r)}:void 0,sortBy:e.sortBy?t=>{const i=e=>{if("number"!==typeof e&&(!Array.isArray(e)||!e.every(e=>"number"===typeof e)))throw new TypeError("query.sortBy must return or resolve to a number or an array of numbers.");return e},r=e.sortBy(t);return Pe(r)?r.then(i):i(r)}:void 0}},wo=(e,t)=>({filter:(null==e?void 0:e.filter)||(null==t?void 0:t.filter)?i=>{var r,n;const s=null==(n=null==(r=null==e?void 0:e.filter)?void 0:r.call(e,i))||n,a=e=>{var r,n;return!1!==e&&(null==(n=null==(r=null==t?void 0:t.filter)?void 0:r.call(t,i))||n)};return Pe(s)?s.then(a):a(s)}:void 0,sortBy:(null==e?void 0:e.sortBy)||(null==t?void 0:t.sortBy)?i=>{var r,n,s,a;const o=null!=(n=null==(r=null==e?void 0:e.sortBy)?void 0:r.call(e,i))?n:[],l=null!=(a=null==(s=null==t?void 0:t.sortBy)?void 0:s.call(t,i))?a:[],c=(e,t)=>[...Array.isArray(e)?e:[e],...Array.isArray(t)?t:[t]];return Pe(o)||Pe(l)?Promise.all([o,l]).then(([e,t])=>c(e,t)):c(o,l)}:void 0}),Po=(e,t)=>p(null,null,function*(){let i=e;if(null==t?void 0:t.filter){const r=e.map(e=>t.filter(e));if(r.some(e=>Pe(e))){const t=yield Promise.all(r);i=e.filter((e,i)=>t[i])}else i=e.filter((e,t)=>r[t])}if(!(null==t?void 0:t.sortBy))return i;const r=i.map(e=>t.sortBy(e)),n=r.some(e=>Pe(e))?yield Promise.all(r):r;return i.map((e,t)=>({track:e,sortValue:n[t]})).sort((e,t)=>{var i,r;const n=Array.isArray(e.sortValue)?e.sortValue:[e.sortValue],s=Array.isArray(t.sortValue)?t.sortValue:[t.sortValue],a=Math.max(n.length,s.length);for(let o=0;oe.track)}),Io=(e,t)=>{const i=1e6,r=1+1e-9,n=[12,15,20,24e3/1001,24,25,3e4/1001,30,48,50,6e4/1001,60,100,12e4/1001,120,144,240];if(e.length<2)return null;const s=new Float64Array(e.length-1);for(let v=1;v0))return null;s[v-1]=t}const a=s.slice();a.sort();let o=a[Math.floor(.05*a.length)];for(let v=0;v<6;v++){let e=0,t=0;for(const n of s){const i=Math.max(1,Math.round(n/o));Math.abs(n-i*o)>=r||(e+=n,t+=i)}if(0===t)return null;const i=e/t;if(Math.abs(i-o)<=1e-12*Math.max(1,o)){o=i;break}o=i}let l=0,c=0,u=0;for(const v of s){const e=Math.max(1,Math.round(v/o));Math.abs(v-e*o)>=r||(l++,c+=v,u+=e)}if(l/s.length<.98)return null;o=c/u;const d=1/Math.min(u,1e3),h=Math.max(Number.EPSILON,o-d),f=o+d,m=t/f,p=t/h,g=t/o;let k=null,y=1/0;for(const v of n){if(vp)continue;const e=Math.abs(v/g-1);e{for(let r=1;r<=i;r++){const i=Math.floor(e*r)+1;if(i/r{const t=[24/1.001,30/1.001,60/1.001,120/1.001],i=[12,15,20,24,25,30,48,50,60,100,120,144,240];for(const s of t)if(Math.abs(s/e-1)<=5e-4)return s;let r=e,n=1/0;for(const s of i){const t=Math.abs(s/e-1);t<=.025&&t!(e instanceof Vs)))throw new TypeError("options.formats must be an array of InputFormat.");if(!(e.source instanceof ps||e.source instanceof gs))throw new TypeError("options.source must be a Source or SourceRef.");if(e.source instanceof ps&&e.source._disposed)throw new TypeError("options.source must not be a disposed Source.");if(void 0!==e.initInput&&!(e.initInput instanceof Eo))throw new TypeError("options.initInput, when provided, must be an Input.");void 0!==e.formatOptions&&((e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(`${t}, when provided, must be an object.`);if(void 0!==e.isobmff){if(!e.isobmff||"object"!==typeof e.isobmff)throw new TypeError(`${t}.isobmff, when provided, must be an object.`);if(void 0!==e.isobmff.resolveKeyId&&"function"!==typeof e.isobmff.resolveKeyId)throw new TypeError(`${t}.isobmff.resolveKeyId, when provided, must be a function.`)}if(void 0!==e.hls){if(!e.hls||"object"!==typeof e.hls)throw new TypeError(`${t}.hls, when provided, must be an object.`);if(void 0!==e.hls.offsetTimestampsByDateTime&&"boolean"!==typeof e.hls.offsetTimestampsByDateTime)throw new TypeError(`${t}.hls.offsetTimestampsByDateTime, when provided, must be a boolean.`)}})(e.formatOptions,"formatOptions"),this._formats=e.formats,this._initInput=null!=(t=e.initInput)?t:null,this._formatOptions=null!=(i=e.formatOptions)?i:{},e.source instanceof ps?this._rootRef=e.source.ref():this._rootRef=e.source,this._sourceRefs.push(this._rootRef)}get _rootSource(){return this._rootRef.source}_getSourceUncached(e){return p(this,null,function*(){S(this._rootSource instanceof ks);const t=yield this._rootSource._resolveRequest(e);return this._emit("source",{source:t.source,request:e,isRoot:e.isRoot}),t})}_getSourceCached(e,t=1){const i=this._sourceCache.find(i=>i.cacheGroup===t&&ys(i.request,e));if(i)return i.age++,Promise.resolve(i.sourceRef.source.ref());const r=this._sourceCachePromises.find(i=>i.cacheGroup===t&&ys(i.request,e));if(r)return r.promise.then(e=>e.sourceRef.source.ref());const n=(()=>p(this,null,function*(){const i=yield this._getSourceUncached(e);if(Re(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount)>=4){const e=Fe(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount?e.age:1/0);S(-1!==e);const i=this._sourceCache[e];this._sourceCache.splice(e,1),i.sourceRef.free(),G(this._sourceRefs,i.sourceRef)}this._sourceRefs.push(i);const r=this._sourceCachePromises.findIndex(t=>t.request===e);S(-1!==r),this._sourceCachePromises.splice(r,1);return{request:e,sourceRef:i,age:this._nextSourceCacheAge++,cacheGroup:t}}))();return this._sourceCachePromises.push({request:e,cacheGroup:t,promise:n}),n.then(e=>{const t=e.sourceRef.source.ref();return this._sourceCache.push(e),t})}_getDemuxer(){var e;return null!=(e=this._demuxerPromise)?e:this._demuxerPromise=(()=>p(this,null,function*(){var e;this._reader=new Fo(this._rootSource),this._emit("source",{source:this._rootSource,request:null,isRoot:!0});for(const t of this._formats){if(yield t._canReadInput(this))return this._format=t,null==(e=this._onFormatDetermined)||e.call(this,t),t._createDemuxer(this)}throw new _o}))()}get source(){return this._rootSource}getFormat(){return p(this,null,function*(){return yield this._getDemuxer(),S(this._format),this._format})}canRead(){return p(this,null,function*(){try{return yield this._getDemuxer(),!0}catch(e){if(e instanceof _o)return!1;throw e}})}getFirstTimestamp(e){return p(this,null,function*(){null!=e||(e=yield this.getTracks());const t=e.filter(e=>null!==e);if(0===t.length)return 0;const i=yield Promise.all(t.map(e=>e._backing.getFirstPacket({metadataOnly:!0}))),r=Math.min(...i.map(e=>{var t;return null!=(t=null==e?void 0:e.timestamp)?t:1/0}));return r===1/0?0:r})}computeDuration(e,t){return p(this,null,function*(){null!=e||(e=yield this.getTracks());const i=e.filter(e=>null!==e);if(0===i.length)return 0;const r=yield Promise.all(i.map(e=>e.computeDuration(t)));return Math.max(...r)})}getDurationFromMetadata(e,t){return p(this,null,function*(){null!=e||(e=yield this.getTracks());const i=e.filter(e=>null!==e),r=(yield Promise.all(i.map(e=>e.getDurationFromMetadata(t)))).filter(e=>null!==e);return 0===r.length?null:Math.max(...r)})}getTracks(e){return p(this,null,function*(){e&&(e=So(e));const t=(yield this._getTrackBackings()).map(e=>this._wrapBackingAsTrack(e));return Po(t,e)})}getVideoTracks(e){return p(this,null,function*(){e&&(e=So(e));const t=(yield this.getTracks()).filter(e=>e.isVideoTrack());return Po(t,e)})}getAudioTracks(e){return p(this,null,function*(){e&&(e=So(e));const t=(yield this.getTracks()).filter(e=>e.isAudioTrack());return Po(t,e)})}getPrimaryVideoTrack(e){return p(this,null,function*(){var t;e&&(e=So(e));const i=wo(e,{sortBy:e=>p(null,null,function*(){return[vo((yield e.getDisposition()).default),vo(yield e.hasPairableAudioTrack()),vo(!(yield e.hasOnlyKeyPackets())),To(yield e.getBitrate())]})});return null!=(t=(yield this.getVideoTracks(i))[0])?t:null})}getPrimaryAudioTrack(e){return p(this,null,function*(){var t;e&&(e=So(e));const i=yield this.getPrimaryVideoTrack(),r=wo(e,{sortBy:e=>p(this,null,function*(){return[vo(!i||e.canBePairedWith(i)),vo((yield e.getDisposition()).default),To(yield e.getBitrate())]})});return null!=(t=(yield this.getAudioTracks(r))[0])?t:null})}_getTrackBackings(){return p(this,null,function*(){var e;const t=yield this._getDemuxer();return null!=(e=this._trackBackingsCache)?e:this._trackBackingsCache=yield t.getTrackBackings()})}_wrapBackingAsTrack(e){const t=this._backingToTrack.get(e);if(t)return t;const i="video"===e.getType()?new yo(this,e):new bo(this,e);return this._backingToTrack.set(e,i),i}getMimeType(){return p(this,null,function*(){return(yield this._getDemuxer()).getMimeType()})}getMetadataTags(){return p(this,null,function*(){return(yield this._getDemuxer()).getMetadataTags()})}dispose(){if(!this._disposed){this._disposed=!0;for(const e of this._sourceRefs)e.free();this._sourceRefs.length=0,this._demuxerPromise&&this._demuxerPromise.then(e=>e.dispose()).catch(()=>{})}}[Symbol.dispose](){this.dispose()}}class _o extends Error{constructor(e="Input has an unsupported or unrecognizable format."){super(e),this.name="UnsupportedInputFormatError"}}class Ro extends Error{constructor(e="Input has been disposed."){super(e),this.name="InputDisposedError"}}class Fo{constructor(e){this.source=e}get fileSize(){const e=this.source._getFileSize();if(void 0===e)throw new Error("Reading file size too early; read required first.");return e}get fileSizeNonStrict(){var e;return null!=(e=this.source._getFileSize())?e:null}requestSlice(e,t){if(this.source._disposed)throw new Ro;if(e<0)return null;if(null!==this.fileSizeNonStrict&&e+t>this.fileSizeNonStrict)return null;if(0===t){const t=new Uint8Array(0);return new Ao(t,E(t),0,e,e)}const i=e+t,r=this.source._read(e,i,0,ms);return Pe(r)?r.then(t=>t?new Ao(t.bytes,t.view,t.offset,e,i):null):r?new Ao(r.bytes,r.view,r.offset,e,i):null}requestSliceRange(e,t,i){if(this.source._disposed)throw new Ro;if(e<0)return null;if(null!==this.fileSizeNonStrict)return this.requestSlice(e,ie(this.fileSizeNonStrict-e,t,i));{const r=this.requestSlice(e,i),n=r=>r||(S(null!==this.fileSizeNonStrict),this.requestSlice(e,ie(this.fileSizeNonStrict-e,t,i)));return Pe(r)?r.then(n):n(r)}}requestEntireFile(){if(null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);return(()=>p(this,null,function*(){const e=[];let t=0;for(;;){if(1===e.length&&null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);let i=this.requestSliceRange(t,0,1024);if(Pe(i)&&(i=yield i),!i||0===i.length)break;const r=Mo(i,i.length);e.push(r),t+=i.length}const i=new Uint8Array(t);let r=0;for(const n of e)i.set(n,r),r+=n.length;return new Ao(i,E(i),0,0,t)}))()}}class Ao{constructor(e,t,i,r,n){this.bytes=e,this.view=t,this.offset=i,this.start=r,this.end=n,this.bufferPos=r-i}static tempFromBytes(e){return new Ao(e,E(e),0,0,e.length)}get length(){return this.end-this.start}get filePos(){return this.offset+this.bufferPos}set filePos(e){this.bufferPos=e-this.offset}get remainingLength(){return Math.max(this.end-this.filePos,0)}skip(e){this.bufferPos+=e}slice(e,t=this.end-e){if(ethis.end)throw new RangeError("Slicing outside of original slice.");return new Ao(this.bytes,this.view,this.offset,e,e+t)}}const Do=(e,t)=>{if(e.filePose.end)throw new RangeError(`Tried reading [${e.filePos}, ${e.filePos+t}), but slice is [${e.start}, ${e.end}). This is likely an internal error, please report it alongside the file that caused it.`)},Mo=(e,t)=>{Do(e,t);const i=e.bytes.subarray(e.bufferPos,e.bufferPos+t);return e.bufferPos+=t,i},No=e=>(Do(e,1),e.view.getUint8(e.bufferPos++)),Oo=(e,t)=>{Do(e,2);const i=e.view.getUint16(e.bufferPos,t);return e.bufferPos+=2,i},Lo=e=>{Do(e,2);const t=e.view.getUint16(e.bufferPos,!1);return e.bufferPos+=2,t},zo=e=>{Do(e,3);const t=Z(e.view,e.bufferPos,!1);return e.bufferPos+=3,t},Uo=e=>{Do(e,2);const t=e.view.getInt16(e.bufferPos,!1);return e.bufferPos+=2,t},qo=(e,t)=>{Do(e,4);const i=e.view.getUint32(e.bufferPos,t);return e.bufferPos+=4,i},Wo=e=>{Do(e,4);const t=e.view.getUint32(e.bufferPos,!1);return e.bufferPos+=4,t},Ho=e=>{Do(e,4);const t=e.view.getUint32(e.bufferPos,!0);return e.bufferPos+=4,t},Vo=e=>{Do(e,4);const t=e.view.getInt32(e.bufferPos,!1);return e.bufferPos+=4,t},jo=(e,t)=>{let i,r;return t?(i=qo(e,!0),r=qo(e,!0)):(r=qo(e,!1),i=qo(e,!1)),4294967296*r+i},Ko=e=>4294967296*Wo(e)+Wo(e),Xo=e=>4294967296*Vo(e)+Wo(e),$o=e=>{const t=Ho(e),i=(e=>{Do(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},Go=e=>{Do(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},Qo=e=>{Do(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},Yo=(e,t)=>{Do(e,t);let i="";for(let r=0;r_.decode(Mo(e,t)).split("\n").map(e=>e.trim()).filter(e=>{var t;return e.length>0&&!(null==(t=null==i?void 0:i.ignore)?void 0:t.call(i,e))});var Zo,el,tl,il;(el=Zo||(Zo={}))[el.Unsynchronisation=128]="Unsynchronisation",el[el.ExtendedHeader=64]="ExtendedHeader",el[el.ExperimentalIndicator=32]="ExperimentalIndicator",el[el.Footer=16]="Footer",(il=tl||(tl={}))[il.ISO_8859_1=0]="ISO_8859_1",il[il.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",il[il.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",il[il.UTF_8=3]="UTF_8";const rl=128,nl=10,sl=["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"],al=(e,t)=>{var i;const r=e.filePos;null!=t.raw||(t.raw={}),null!=(i=t.raw).TAG||(i.TAG=Mo(e,rl-3)),e.filePos=r;const n=ol(e,30);n&&(null!=t.title||(t.title=n));const s=ol(e,30);s&&(null!=t.artist||(t.artist=s));const a=ol(e,30);a&&(null!=t.album||(t.album=a));const o=ol(e,4),l=Number.parseInt(o,10);Number.isInteger(l)&&l>0&&(null!=t.date||(t.date=new Date(String(l))));const c=Mo(e,30);let u;if(0===c[28]&&0!==c[29]){const i=c[29];i>0&&(null!=t.trackNumber||(t.trackNumber=i)),e.skip(-30),u=ol(e,28),e.skip(2)}else e.skip(-30),u=ol(e,30);u&&(null!=t.comment||(t.comment=u));const d=No(e);d{const i=Mo(e,t),r=Ie(i.indexOf(0),i.length),n=i.subarray(0,r);let s="";for(let a=0;a{const t=e.filePos,i=Yo(e,3),r=No(e),n=No(e),s=No(e),a=Wo(e);if("ID3"!==i||255===r||255===n||0!==(2155905152&a))return e.filePos=t,null;let o=Ei(a);return s&Zo.Footer&&(o+=nl),{majorVersion:r,revision:n,flags:s,size:o}},cl=(e,t,i)=>{var r,n,s,a,o,l;if(![2,3,4].includes(t.majorVersion))return void ze._warn(`Unsupported ID3v2 major version: ${t.majorVersion}`);const c=t.flags&Zo.Footer?t.size-nl:t.size,u=Mo(e,c),d=new ul(t,u);if(t.flags&Zo.Unsynchronisation&&3===t.majorVersion&&d.ununsynchronizeAll(),t.flags&Zo.ExtendedHeader){const e=d.readU32();3===t.majorVersion?d.pos+=e:d.pos+=e-4}for(;d.pos<=d.bytes.length-d.frameHeaderSize();){const e=d.readId3V2Frame();if(!e)break;const c=d.pos,u=d.pos+e.size;let h=!1,f=!1,m=!1;if(3===t.majorVersion?(h=!!(64&e.flags),f=!!(128&e.flags)):4===t.majorVersion&&(h=!!(4&e.flags),f=!!(8&e.flags),m=!!(2&e.flags)||!!(t.flags&Zo.Unsynchronisation)),h)ze._warn(`Skipping encrypted ID3v2 frame ${e.id}`),d.pos=u;else if(f)ze._warn(`Skipping compressed ID3v2 frame ${e.id}`),d.pos=u;else{if(m&&d.ununsynchronizeRegion(d.pos,u),null!=i.raw||(i.raw={}),"TXXX"===e.id){const e=null!=(n=(r=i.raw).TXXX)?n:r.TXXX={},t=d.readId3V2TextEncoding(),s=d.readId3V2Text(t,u),a=d.readId3V2Text(t,u);null!=e[s]||(e[s]=a)}else"T"===e.id[0]?null!=(s=i.raw)[a=e.id]||(s[a]=d.readId3V2EncodingAndText(u)):null!=(o=i.raw)[l=e.id]||(o[l]=d.readBytes(e.size));switch(d.pos=c,e.id){case"TIT2":case"TT2":null!=i.title||(i.title=d.readId3V2EncodingAndText(u));break;case"TIT3":case"TT3":null!=i.description||(i.description=d.readId3V2EncodingAndText(u));break;case"TPE1":case"TP1":null!=i.artist||(i.artist=d.readId3V2EncodingAndText(u));break;case"TALB":case"TAL":null!=i.album||(i.album=d.readId3V2EncodingAndText(u));break;case"TPE2":case"TP2":null!=i.albumArtist||(i.albumArtist=d.readId3V2EncodingAndText(u));break;case"TRCK":case"TRK":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.trackNumber||(i.trackNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.tracksTotal||(i.tracksTotal=r))}break;case"TPOS":case"TPA":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.discNumber||(i.discNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.discsTotal||(i.discsTotal=r))}break;case"TCON":case"TCO":{const e=d.readId3V2EncodingAndText(u);let t=/^\((\d+)\)/.exec(e);if(t){const e=Number.parseInt(t[1]);if(void 0!==sl[e]){null!=i.genre||(i.genre=sl[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==sl[e]){null!=i.genre||(i.genre=sl[e]);break}}null!=i.genre||(i.genre=e)}break;case"TDRC":case"TDAT":{const e=d.readId3V2EncodingAndText(u),t=new Date(e);Number.isNaN(t.getTime())||null!=i.date||(i.date=t)}break;case"TYER":case"TYE":{const e=d.readId3V2EncodingAndText(u),t=Number.parseInt(e,10);Number.isInteger(t)&&(null!=i.date||(i.date=new Date(String(t))))}break;case"USLT":case"ULT":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.lyrics||(i.lyrics=d.readId3V2Text(e,u))}break;case"COMM":case"COM":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.comment||(i.comment=d.readId3V2Text(e,u))}break;case"APIC":case"PIC":{const e=d.readId3V2TextEncoding();let r;if(2===t.majorVersion){const e=d.readAscii(3);r="PNG"===e?"image/png":"JPG"===e?"image/jpeg":"image/*"}else r=d.readId3V2Text(e,u);const n=d.readU8(),s=d.readId3V2Text(e,u).trimEnd(),a=u-d.pos;if(a>=0){const e=d.readBytes(a);i.images||(i.images=[]),i.images.push({data:e,mimeType:r,kind:3===n?"coverFront":4===n?"coverBack":"unknown",description:s})}}break;default:d.pos+=e.size}d.pos=u}}};class ul{constructor(e,t){this.header=e,this.bytes=t,this.pos=0,this.view=new DataView(t.buffer,t.byteOffset,t.byteLength)}frameHeaderSize(){return 2===this.header.majorVersion?6:10}ununsynchronizeAll(){const e=[];for(let t=0;t{const t=this.pos+e;if(t>this.bytes.length)return!1;if(t<=this.bytes.length-this.frameHeaderSize()){this.pos+=e;const t=this.readAscii(4);if("\0\0\0\0"!==t&&!/[0-9A-Z]{4}/.test(t))return!1}return!0};if(!s(i)){const e=4===this.header.majorVersion?t:Ei(t);s(e)&&(i=e)}return this.pos=n,{id:e,size:i,flags:r}}}readId3V2TextEncoding(){const e=this.readU8();if(e>3)throw new Error(`Unsupported text encoding: ${e}`);return e}readId3V2Text(e,t){const i=this.pos,r=this.readBytes(t-this.pos);switch(e){case tl.ISO_8859_1:{let e="";for(let t=0;t0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}if(254===r[0]&&255===r[1]){const e=new TextDecoder("utf-16be"),t=Ie(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}{const e=Ie(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),_.decode(r.subarray(0,e))}case tl.UTF_16_BE_NO_BOM:{const e=new TextDecoder("utf-16be"),t=Ie(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(0,t))}case tl.UTF_8:{const e=Ie(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),_.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class dl{constructor(e){this.events=e,this.input=null,this.audioSink=null,this.audioIterator=null,this.audioContext=null,this.gainNode=null,this.audioContextStartTime=0,this.playbackTimeAtStart=0,this.latestScheduledEndTime=0,this.duration=Number.NaN,this.paused=!0,this.volume=.7,this.muted=!1,this.playbackRate=1,this.asyncId=0,this.queuedNodes=new Set}get currentTime(){return this.paused?this.playbackTimeAtStart:(this.audioContext.currentTime-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart}ensureAudioContext(e){if(this.audioContext)return;const t=window.AudioContext||window.webkitAudioContext;try{this.audioContext=new t({sampleRate:e})}catch(i){this.audioContext=new t}this.gainNode=this.audioContext.createGain(),this.gainNode.connect(this.audioContext.destination),this.updateGain()}updateGain(){if(!this.gainNode)return;const e=this.muted?0:this.volume;this.gainNode.gain.value=e*e}stopQueuedNodes(){this.queuedNodes.forEach(e=>e.stop()),this.queuedNodes.clear()}stopIterator(){return p(this,null,function*(){var e;yield null==(e=this.audioIterator)?void 0:e.return(),this.audioIterator=null})}handleNoAudioTrack(){this.audioSink=null,this.ensureAudioContext()}load(e,t){return p(this,null,function*(){++this.asyncId,yield this.stopIterator(),this.stopQueuedNodes(),this.paused=!0,this.playbackTimeAtStart=0,this.audioContextStartTime=0;const{input:i,audioTrack:r,duration:n}=e;return this.input=i,this.duration=n,r?null!==r.codec&&(yield r.canDecode())?(this.ensureAudioContext(r.sampleRate),this.audioSink=new mo(r),void(null==t||t())):(this.audioSink=null,this.ensureAudioContext(),void(null==t||t())):(this.handleNoAudioTrack(),void(null==t||t()))})}runIterator(e){return p(this,null,function*(){if(!this.audioSink)return;yield this.stopIterator(),this.audioIterator=this.audioSink.buffers(this.currentTime);for(;;){if(e!==this.asyncId||this.paused)return;const i=[];let r=!1;try{for(let e=0;e<16;e++){const e=yield this.audioIterator.next();if(e.done){r=!0;break}i.push(e.value)}}catch(t){console.error("Audio iterator error:",t),r=!0}if(e!==this.asyncId||this.paused)return;i.length>0&&"suspended"===this.audioContext.state&&(yield this.audioContext.resume(),this.events.emit("canplay"),this.events.emit("playing"));for(const{buffer:e,timestamp:t}of i){const i=this.audioContext.createBufferSource();i.buffer=e,i.connect(this.gainNode),i.playbackRate.value=this.playbackRate;const r=this.audioContextStartTime+(t-this.playbackTimeAtStart)/this.playbackRate,n=(r+e.duration/this.playbackRate-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart;n>this.latestScheduledEndTime&&(this.latestScheduledEndTime=n),r>=this.audioContext.currentTime?i.start(r):i.start(this.audioContext.currentTime,(this.audioContext.currentTime-r)*this.playbackRate),this.queuedNodes.add(i),i.onended=()=>this.queuedNodes.delete(i)}if(r)break;yield new Promise(e=>setTimeout(e,0));const n=1;for(;this.latestScheduledEndTime-this.currentTime>n;){if(e!==this.asyncId||this.paused)return;yield new Promise(e=>setTimeout(e,50))}}})}play(){return p(this,null,function*(){if(!this.paused)return;this.audioContext||this.ensureAudioContext(),"suspended"===this.audioContext.state&&(yield this.audioContext.resume()),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart,this.paused=!1;const e=++this.asyncId;this.runIterator(e)})}pause(){this.paused||(this.playbackTimeAtStart=this.currentTime,this.paused=!0,this.stopIterator(),this.stopQueuedNodes())}seek(e){return p(this,null,function*(){this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart;const t=++this.asyncId;this.paused||this.runIterator(t)})}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){if(e!==this.playbackRate&&(this.paused||(this.playbackTimeAtStart=this.currentTime,this.audioContextStartTime=this.audioContext.currentTime),this.playbackRate=e,!this.paused)){const e=++this.asyncId;this.runIterator(e)}}destroy(){var e;this.asyncId++,this.pause(),null==(e=this.audioContext)||e.close(),this.audioContext=null,this.input=null,this.audioSink=null}}function hl(e){return p(this,null,function*(){var t,i;return null!=(i=null!=(t=yield e.getAverageBitrate())?t:yield e.getBitrate())?i:0})}const fl=/\.m3u8(?:$|[?#])/i;function ml(e){return"string"===typeof e&&fl.test(e)}function pl(e){const t=function(e){return"string"===typeof e?new Is(e):e instanceof Blob?new vs(e):"undefined"!==typeof ReadableStream&&e instanceof ReadableStream?new Bs(e):null!=e?e:null}(e);return t?new Eo({source:t,formats:ml(e)?pa:ma}):null}class gl{constructor(){this.active=!0,this.input=null,this.timers=new Set,this.controller="undefined"===typeof AbortController?void 0:new AbortController,this.cancellation=new Promise(e=>{this.resolveCancellation=e})}get signal(){var e;return null==(e=this.controller)?void 0:e.signal}own(e){this.active?this.input=e:e.dispose()}defer(e){if(!this.active)return;const t=setTimeout(()=>{this.timers.delete(t),this.active&&e()},0);this.timers.add(t)}wait(e,t){return p(this,null,function*(){try{yield Promise.race([e,this.cancellation,t>0?this.timeout(t):new Promise(()=>{})])}finally{void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0)}})}timeout(e){return new Promise((t,i)=>{this.deadline=setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){const e=this.input;this.input=null,null==e||e.dispose()}cancel(){var e;if(this.active){this.active=!1;for(const e of this.timers)clearTimeout(e);this.timers.clear(),void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0),this.resolveCancellation(),null==(e=this.controller)||e.abort(),this.disposeInput()}}}function kl(e){return p(this,arguments,function*({input:e,videoTrack:t,audioTrack:i}){const r=[t,i].filter(e=>null!==e),n=t||i,s=Boolean(n&&(yield n.isLive()));let a=Number.NaN;return r.length>0&&(a=yield e.getDurationFromMetadata(r,{skipLiveWait:!0}),null!==a||s||(a=yield e.computeDuration(r,{skipLiveWait:!0}))),s?Number.POSITIVE_INFINITY:null!=a?a:Number.NaN})}class yl{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:n=.12,dropLateFrames:s=!1,poster:a="",preflightRange:o=!1}){this.canvas=e,this.ctx=t,this.events=i,this.timeupdateInterval=r,this.avSyncTolerance=n,this.dropLateFrames=s,this.poster=a,this.preflightRange=o,this.input=null,this.videoSink=null,this.videoIterator=null,this.nextFrame=null,this.rafId=0,this.asyncId=0,this.width=0,this.height=0,this.duration=Number.NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1}preflight(e,t,i){return p(this,null,function*(){return function(e,t,i,r,n=()=>!0){return p(this,null,function*(){if((null==r?void 0:r.aborted)||!n())return!1;if(!t||"string"!==typeof e||ml(e))return!0;try{const t=yield fetch(e,r?{method:"HEAD",signal:r}:{method:"HEAD"});if((null==r?void 0:r.aborted)||!n())return!1;const s=t.headers.get("accept-ranges");return!(!s||"none"===s)||(i.emit("error",new Event("RangeNotSupported")),!1)}catch(s){return!((null==r?void 0:r.aborted)||!n())&&(console.warn("Preflight check failed:",s),!0)}})}(e,this.preflightRange,this.events,t,i)})}drawPoster(){if(!this.poster||this.posterDrawn)return;const e=new Image;e.onload=()=>{this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,this.ctx.drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e.src=this.poster}stopIterator(){return p(this,null,function*(){var e;yield null==(e=this.videoIterator)?void 0:e.return(),this.videoIterator=null})}clear(){this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height)}load(e,t){return p(this,null,function*(){++this.asyncId,yield this.stopIterator(),this.clear(),this.posterDrawn=!1;const{input:i,videoTrack:r,duration:n}=e;if(this.input=i,this.duration=n,!r)return this.handleNoVideoTrack(),void(null==t||t());if(null===r.codec||!(yield r.canDecode()))return this.handleNoVideoTrack(),void(null==t||t());const s=yield r.canBeTransparent();this.videoSink=new co(r,{poolSize:2,fit:"contain",alpha:s}),this.width=r.displayWidth,this.height=r.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,null==t||t(),yield this.resetIterator(0)})}handleNoVideoTrack(){this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster()}resetIterator(e){return p(this,null,function*(){var t,i;if(yield this.stopIterator(),!this.videoSink)return;this.videoIterator=this.videoSink.canvases(e);const r=null!=(t=(yield this.videoIterator.next()).value)?t:null,n=null!=(i=(yield this.videoIterator.next()).value)?i:null;this.nextFrame=n,r?this.ctx.drawImage(r.canvas,0,0):this.drawPoster()})}updateNextFrame(e){return p(this,null,function*(){var t;if(this.videoIterator&&!this.isFetching){this.isFetching=!0;try{for(;;){const i=null!=(t=(yield this.videoIterator.next()).value)?t:null;if(!i||e!==this.asyncId)return;const r=this.audioClock.currentTime,n=this.dropLateFrames?Math.max(.06,this.avSyncTolerance/Math.max(1,this.playbackRate)):0;if(!(this.dropLateFrames&&i.timestampr)return void(this.nextFrame=null)}}}finally{this.isFetching=!1}}})}render(){if(!this.audioClock)return;const e=this.audioClock.currentTime,t=Date.now();if(t-this.lastTimeUpdate>=this.timeupdateInterval&&(this.events.emit("timeupdate"),this.lastTimeUpdate=t),Number.isFinite(this.duration)&&e>=this.duration)return this.stop(),this.stalled=!1,this.events.emit("ended"),this.events.emit("pause"),void this.events.emit("canplay");this.nextFrame&&this.nextFrame.timestamp<=e?(this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.ctx.drawImage(this.nextFrame.canvas,0,0),this.nextFrame=null,this.updateNextFrame(this.asyncId),this.stalled&&(this.events.emit("canplay"),this.events.emit("playing"),this.stalled=!1)):this.nextFrame||(this.updateNextFrame(this.asyncId),!this.nextFrame&&Number.isFinite(this.duration)&&ethis.render())}start(e){this.audioClock=e,this.asyncId++,this.stalled=!1,this.updateNextFrame(this.asyncId),this.rafId=requestAnimationFrame(()=>this.render())}stop(){cancelAnimationFrame(this.rafId)}seek(e){return p(this,null,function*(){this.asyncId++,yield this.resetIterator(e)})}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){this.asyncId++,this.stop(),this.stopIterator(),this.posterDrawn=!1,this.videoSink=null,this.input=null}}class bl{constructor({canvas:e,ctx:t,events:i,option:r={}}){var n,s,a,o,l,c;this.events=i,this.option=r,this.audio=new dl(i),this.video=new yl({canvas:e,ctx:t,events:i,timeupdateInterval:null!=(n=r.timeupdateInterval)?n:250,avSyncTolerance:null!=(s=r.avSyncTolerance)?s:.12,dropLateFrames:null!=(a=r.dropLateFrames)&&a,poster:null!=(o=r.poster)?o:"",preflightRange:null!=(l=r.preflightRange)&&l}),this.paused=!0,this.ended=!1,this.readyState=0,this.networkState=0,this.error=null,this.seeking=!1,this.loadSeq=0,this.input=null,this.media=null,this.loadSession=null,this.destroyed=!1,null==(c=i.addEventListener)||c.call(i,"ended",()=>{this.ended=!0,this.paused=!0})}load(e){return p(this,null,function*(){var t;if(this.destroyed)return;const i=++this.loadSeq;if(null==(t=this.loadSession)||t.cancel(),i!==this.loadSeq||this.destroyed)return;if(this.pause(),i!==this.loadSeq||this.destroyed)return;this.disposeInput();const r=new gl;this.loadSession=r,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,r.defer(()=>this.events.emit("waiting")),r.defer(()=>this.events.emit("loadstart"));const n=Number.isFinite(this.option.loadTimeout)?this.option.loadTimeout:0;try{yield r.wait(this.performLoad(e,i,r),n)}catch(s){if(i!==this.loadSeq)return;const e=++this.loadSeq;if(r.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.error={code:4,message:s.message},this.networkState=3,this.events.emit("error")}})}performLoad(e,t){return p(this,arguments,function*(e,t,i=this.loadSession){if(!(yield this.video.preflight(e,null==i?void 0:i.signal,()=>t===this.loadSeq))||t!==this.loadSeq)return;const r=pl(e);if(!r)return this.video.handleNoVideoTrack(),void this.audio.handleNoAudioTrack();i.own(r);const n=yield function(e,t){return p(this,null,function*(){const i=yield e.getPrimaryVideoTrack(),r=i?yield i.getPrimaryPairableAudioTrack():yield e.getPrimaryAudioTrack(),n=yield kl({input:e,videoTrack:i,audioTrack:r}),s=i||r,a=ml(t);return{input:e,videoTrack:i,audioTrack:r,duration:n,isLive:!Number.isFinite(n)&&Boolean(s&&(yield s.isLive())),isHls:a,videoMode:a?"auto":"manual",audioMode:a?"auto":"manual"}})}(r,e);if(t!==this.loadSeq)return;this.input=r,this.media=n;let s=!n.videoTrack,a=!n.audioTrack;const o=()=>{s&&a&&(this.readyState=1,this.events.emit("loadedmetadata"),this.events.emit("durationchange"),this.events.emit("progress"))};try{if(yield Promise.all([this.video.load(n,()=>{t===this.loadSeq&&(s=!0,o())}),this.audio.load(n,()=>{t===this.loadSeq&&(a=!0,o())})]),t!==this.loadSeq)return;this.readyState=4,this.networkState=1,this.events.emit("loadeddata"),this.events.emit("canplay"),this.events.emit("canplaythrough"),this.events.emit("progress")}catch(l){if(t!==this.loadSeq)return;throw console.error("MediaBunny load error:",l),l}})}createTimeout(e){return new Promise((t,i)=>{setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){var e;null==(e=this.loadSession)||e.disposeInput(),this.input=null,this.media=null}replaceTracks(e){return p(this,arguments,function*({videoTrack:e,audioTrack:t,videoMode:i,audioMode:r}){if(!this.media)return;const n=h(d({},this.media),{videoTrack:e,audioTrack:t,videoMode:i,audioMode:r}),s=!this.paused,a=this.currentTime;this.pause(),this.ended=!1,this.seeking=!0,this.events.emit("seeking"),this.events.emit("waiting"),n.duration=yield kl(n),this.media=n,yield Promise.all([this.video.load(n),this.audio.load(n)]),yield Promise.all([this.video.seek(a),this.audio.seek(a)]),this.readyState=4,this.networkState=1,this.seeking=!1,this.events.emit("loadedmetadata"),this.events.emit("durationchange"),this.events.emit("progress"),this.events.emit("loadeddata"),this.events.emit("canplay"),this.events.emit("canplaythrough"),this.events.emit("seeked"),s&&(yield this.play())})}selectHlsQuality(e){return p(this,null,function*(){var t,i;if(!(null==(t=this.media)?void 0:t.isHls)||!this.input)return;const r=yield this.input.getVideoTracks(),n="auto"===e?yield this.input.getPrimaryVideoTrack():null!=(i=r.find(t=>t.id===e))?i:this.media.videoTrack;if(!n)return;let s=this.media.audioTrack,a=this.media.audioMode;s&&n.canBePairedWith(s)||(s=yield n.getPrimaryPairableAudioTrack(),a="auto"),yield this.replaceTracks({videoTrack:n,audioTrack:s,videoMode:"auto"===e?"auto":"manual",audioMode:a})})}selectHlsAudio(e){return p(this,null,function*(){var t,i;if(!(null==(t=this.media)?void 0:t.isHls)||!this.input)return;const r=yield this.input.getAudioTracks(),n="auto"===e?this.media.videoTrack?yield this.media.videoTrack.getPrimaryPairableAudioTrack():yield this.input.getPrimaryAudioTrack():null!=(i=r.find(t=>t.id===e))?i:this.media.audioTrack;if(!n)return;let s=this.media.videoTrack,a=this.media.videoMode;s&&n.canBePairedWith(s)||(s=yield n.getPrimaryPairableVideoTrack(),a="auto"),yield this.replaceTracks({videoTrack:s,audioTrack:n,videoMode:a,audioMode:"auto"===e?"auto":"manual"})})}getHlsState(){return function(e){return p(this,null,function*(){var t,i,r,n;if(!(null==e?void 0:e.isHls)||!e.input)return null;const[s,a]=yield Promise.all([e.input.getVideoTracks(),e.videoTrack?e.videoTrack.getPairableAudioTracks():[]]),[o,l]=yield Promise.all([Promise.all(s.map((e,t)=>p(null,null,function*(){return{id:e.id,track:e,index:t,name:yield e.getName(),height:yield e.getDisplayHeight(),bitrate:yield hl(e)}}))),Promise.all(a.map((e,t)=>p(null,null,function*(){const i=yield e.getName(),r=yield e.getLanguageCode();return{id:e.id,track:e,index:t,name:i,lang:r,language:r,bitrate:yield hl(e)}})))]);return{levels:o,audios:l,currentLevel:e.videoTrack&&null!=(t=o.find(t=>{var i;return t.id===(null==(i=e.videoTrack)?void 0:i.id)}))?t:null,currentAudio:e.audioTrack&&null!=(i=l.find(t=>{var i;return t.id===(null==(i=e.audioTrack)?void 0:i.id)}))?i:null,videoMode:null!=(r=e.videoMode)?r:"auto",audioMode:null!=(n=e.audioMode)?n:"auto"}})}(this.media)}play(){return p(this,null,function*(){this.paused&&(this.ended&&(this.ended=!1,yield this.seek(0)),this.paused=!1,yield this.audio.play(),this.video.start(this.audio),this.events.emit("play"),this.events.emit("playing"))})}pause(){this.paused||(this.paused=!0,this.audio.pause(),this.video.stop(),this.events.emit("pause"))}seek(e){return p(this,null,function*(){const t=!this.paused;this.ended=!1,this.seeking=!0,this.events.emit("seeking"),this.events.emit("waiting"),this.pause(),yield Promise.all([this.audio.seek(e),this.video.seek(e)]),this.seeking=!1,this.events.emit("seeked"),t&&!this.ended&&(yield this.play())})}setVolume(e,t){this.audio.setVolume(e,t)}setPlaybackRate(e){this.audio.setPlaybackRate(e),this.video.setPlaybackRate(e)}destroy(){var e;this.destroyed||(this.destroyed=!0,this.loadSeq++,null==(e=this.loadSession)||e.cancel(),this.pause(),this.disposeInput(),this.audio.destroy(),this.video.destroy())}get currentTime(){return this.audio.currentTime}get duration(){var e,t,i;return null!=(i=null!=(t=null==(e=this.media)?void 0:e.duration)?t:this.audio.duration)?i:this.video.duration}get videoWidth(){return this.video.width}get videoHeight(){return this.video.height}}const Tl=new WeakMap;function vl(e){let t=Tl.get(e);return t||(t={closed:!1,frames:new Set},Tl.set(e,t)),t}class Sl{constructor({art:e,canvas:t,ctx:i,option:r}){var n,s;this.art=e,this.canvas=t,this.option=r,this.events=new v,this.engine=new bl({canvas:t,ctx:i,events:this.events,option:r}),this._src=null,this._volume=null!=(n=r.volume)?n:.7,this._muted=!!r.muted,this._playbackRate=1,this.engine.setVolume(this._volume,this._muted),this.setupEventForwarding(),r.source?this.src=r.source:(null==(s=e.option)?void 0:s.url)&&(this.src=e.option.url)}setupEventForwarding(){const{events:e}=this.art.constructor.config;e.forEach(e=>{this.events.addEventListener(e,e=>{this.art.emit(`video:${e.type}`,e)})})}addEventListener(e,t){this.events.addEventListener(e,t)}removeEventListener(e,t){this.events.removeEventListener(e,t)}get src(){return this._src}set src(e){this._src=e,e&&this.engine.load(e)}get currentSrc(){return this._src}get currentTime(){return this.engine.currentTime}set currentTime(e){this.engine.seek(Number(e)||0)}get duration(){return this.engine.duration}get buffered(){return this.createTimeRanges(0,this.engine.duration)}get played(){return this.createTimeRanges(0,this.engine.currentTime)}get seekable(){return this.createTimeRanges(0,this.engine.duration)}createTimeRanges(e,t){return function(e,t,i){return!e||Number.isNaN(e)||i<=0?{length:0,start:()=>0,end:()=>0}:{length:1,start:()=>t,end:()=>i}}(this.engine.duration,e,t)}get paused(){return this.engine.paused}get playing(){return!this.engine.paused&&!this.engine.ended}get ended(){return this.engine.ended}get seeking(){return this.engine.seeking}get readyState(){return this.engine.readyState}get networkState(){return this.engine.networkState}get error(){return this.engine.error}get playbackRate(){return this._playbackRate}set playbackRate(e){const t=Number(e);Number.isNaN(t)||t<=0||(this._playbackRate=t,this.engine.setPlaybackRate(t),this.events.emit("ratechange"))}get volume(){return this._volume}set volume(e){var t;this._volume=(t=e,Math.max(0,Math.min(1,Number(t)||0))),this._muted=!1,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}get muted(){return this._muted}set muted(e){this._muted=!!e,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}play(){return this.engine.play()}pause(){this.engine.pause()}load(){this._src&&this.engine.load(this._src)}getM3u8State(){return this.engine.getHlsState()}switchM3u8Quality(e){return this.engine.selectHlsQuality(e)}switchM3u8Audio(e){return this.engine.selectHlsAudio(e)}get videoWidth(){return this.engine.videoWidth}get videoHeight(){return this.engine.videoHeight}get poster(){return this.option.poster||""}set poster(e){this.option.poster=e}get autoplay(){return this.option.autoplay||!1}set autoplay(e){}get loop(){return this.option.loop||!1}set loop(e){}get controls(){return!1}set controls(e){}get playsInline(){return!0}set playsInline(e){}get crossOrigin(){return this.option.crossOrigin||""}set crossOrigin(e){}get preload(){return"auto"}set preload(e){}get defaultMuted(){return!1}set defaultMuted(e){}get defaultPlaybackRate(){return 1}set defaultPlaybackRate(e){}canPlayType(e){return"maybe"}getBoundingClientRect(){return this.canvas.getBoundingClientRect()}requestVideoFrameCallback(e){return function(e,t){const i=vl(e);if(i.closed)return 0;const r=requestAnimationFrame(n=>{i.frames.delete(r),i.closed||t(n,{presentationTime:e.engine.currentTime,expectedDisplayTime:n+16.6,width:e.engine.videoWidth,height:e.engine.videoHeight,mediaTime:e.engine.currentTime,presentedFrames:0,processingDuration:0,captureTime:n,receiveTime:n,rtpTimestamp:0})});return i.frames.add(r),r}(this,e)}cancelVideoFrameCallback(e){!function(e,t){vl(e).frames.delete(t),cancelAnimationFrame(t)}(this,e)}setAttribute(e,t){"src"===e?this.src=t:"autoplay"===e?this.autoplay=t:"loop"===e?this.loop=t:"muted"===e?this.muted=!0:Reflect.apply(this.canvas.setAttribute,this.canvas,[e,t])}destroy(){if(function(e){const t=vl(e);if(t.closed)return!1;t.closed=!0;for(const i of t.frames)cancelAnimationFrame(i);return t.frames.clear(),!0}(this))try{this.engine.destroy()}finally{this.events.destroy()}}}return function(e={}){return t=>{const{constructor:i}=t,{createElement:r}=i.utils,n=r("canvas"),s=n.getContext("2d"),a=new Sl({art:t,canvas:n,ctx:s,option:e});t.mediabunny=a;const o={};for(const e in n)"function"===typeof n[e]&&(o[e]=n[e].bind(n));const l=new Set([...Object.getOwnPropertyNames(a),...Object.getOwnPropertyNames(Object.getPrototypeOf(a))]);for(const e of l)"constructor"!==e&&(e in n||Object.defineProperty(n,e,{get(){const t=a[e];return"function"===typeof t?t.bind(a):t},set(t){a[e]=t},configurable:!0,enumerable:!0}));for(const e in o)n[e]=(...t)=>o[e](...t);function c(){var e;(null==(e=t.template)?void 0:e.$player)&&!t.option.autoSize&&Object.assign(n.style,{width:"100%",height:"100%",objectFit:"contain"})}return t.on("resize",c),t.on("video:loadedmetadata",c),function({art:e,shim:t,option:i}){if(i.m3u8)return e.on("video:loadedmetadata",u),e.on("restart",u),{update:u};function r(t){e.controls.cache.has(t)&&e.controls.remove(t)}function n(t){e.setting.find(t)&&e.setting.remove(t)}function s(){r("mediabunny-quality"),n("mediabunny-quality")}function a(){r("mediabunny-audio"),n("mediabunny-audio")}function o(e={}){return e.control||e.setting}function l(r){return p(this,null,function*(){var n;const a=(null==(n=i.m3u8)?void 0:n.quality)||{};if(!o(a)||!(null==r?void 0:r.levels.length))return void s();const l=a.auto||"Auto",c=a.title||"Quality",d=a.getName||(e=>e.name||`${e.height}P`),h=r.currentLevel?d(r.currentLevel):l,f=T(r.levels.map(e=>{var t;return{html:d(e),value:e.id,default:(null==(t=r.currentLevel)?void 0:t.id)===e.id}}),"html").sort((e,t)=>{const i=r.levels.find(t=>t.id===e.value),n=r.levels.find(e=>e.id===t.value);return((null==n?void 0:n.height)||0)-((null==i?void 0:i.height)||0)});f.push({html:l,value:"auto",default:!r.currentLevel});const m=i=>p(null,null,function*(){return yield t.switchM3u8Quality(i.value),e.notice.show=`${c}: ${i.html}`,yield u(),i.html});a.control&&e.controls.update({name:"mediabunny-quality",position:"right",html:h,style:{padding:"0 10px"},selector:f,onSelect:m}),a.setting&&e.setting.update({name:"mediabunny-quality",tooltip:h,html:c,icon:'',width:200,selector:f,onSelect:m})})}function c(r){return p(this,null,function*(){var n;const s=(null==(n=i.m3u8)?void 0:n.audio)||{};if(!o(s)||!(null==r?void 0:r.audios.length)||r.audios.length<2)return void a();const l=s.auto||"Auto",c=s.title||"Audio",d=s.getName||(e=>e.name||e.lang||e.language),h=r.currentAudio?d(r.currentAudio):l,f=T(r.audios.map(e=>{var t;return{html:d(e),value:e.id,default:(null==(t=r.currentAudio)?void 0:t.id)===e.id}}),"html");f.push({html:l,value:"auto",default:!r.currentAudio});const m=i=>p(null,null,function*(){return yield t.switchM3u8Audio(i.value),e.notice.show=`${c}: ${i.html}`,yield u(),i.html});s.control&&e.controls.update({name:"mediabunny-audio",position:"right",html:h,style:{padding:"0 10px"},selector:f,onSelect:m}),s.setting&&e.setting.update({name:"mediabunny-audio",tooltip:h,html:c,icon:'',width:200,selector:f,onSelect:m})})}function u(){return p(this,null,function*(){const e=yield t.getM3u8State();if(!e)return s(),void a();yield Promise.all([l(e),c(e)])})}}({art:t,shim:a,option:e}),t.on("destroy",()=>{delete t.mediabunny,a.destroy()}),n}}}); diff --git a/docs/compiled/artplayer-proxy-mediabunny.mjs b/docs/compiled/artplayer-proxy-mediabunny.mjs index 182167ee4..bc85640b8 100644 --- a/docs/compiled/artplayer-proxy-mediabunny.mjs +++ b/docs/compiled/artplayer-proxy-mediabunny.mjs @@ -4,6 +4,14 @@ * (c) 2017-2026 Harvey Zhao * Released under the MIT License. */ +var __typeError = (msg) => { + throw TypeError(msg); +}; +var __accessCheck = (obj, member, msg) => member.has(obj) || __typeError("Cannot " + msg); +var __privateGet = (obj, member, getter) => (__accessCheck(obj, member, "read from private field"), getter ? getter.call(obj) : member.get(obj)); +var __privateAdd = (obj, member, value) => member.has(obj) ? __typeError("Cannot add the same private member more than once") : member instanceof WeakSet ? member.add(obj) : member.set(obj, value); +var __privateSet = (obj, member, value, setter) => (__accessCheck(obj, member, "write to private field"), setter ? setter.call(obj, value) : member.set(obj, value), value); +var _closed; const $audio = ''; const $quality = ''; function uniqBy(array, property) { @@ -40,34 +48,34 @@ function setupM3u8Controls({ art, shim, option }) { function canRender(config = {}) { return config.control || config.setting; } - async function updateQuality(state) { + async function updateQuality(state2) { const config = option.m3u8?.quality || {}; - if (!canRender(config) || !state?.levels.length) { + if (!canRender(config) || !state2?.levels.length) { clearQuality(); return; } const auto = config.auto || "Auto"; const title = config.title || "Quality"; const getName = config.getName || ((level) => level.name || `${level.height}P`); - const defaultHtml = state.currentLevel ? getName(state.currentLevel) : auto; + const defaultHtml = state2.currentLevel ? getName(state2.currentLevel) : auto; const selector = uniqBy( - state.levels.map((item) => { + state2.levels.map((item) => { return { html: getName(item), value: item.id, - default: state.currentLevel?.id === item.id + default: state2.currentLevel?.id === item.id }; }), "html" ).sort((a, b) => { - const left = state.levels.find((item) => item.id === a.value); - const right = state.levels.find((item) => item.id === b.value); + const left = state2.levels.find((item) => item.id === a.value); + const right = state2.levels.find((item) => item.id === b.value); return (right?.height || 0) - (left?.height || 0); }); selector.push({ html: auto, value: "auto", - default: !state.currentLevel + default: !state2.currentLevel }); const onSelect = async (item) => { await shim.switchM3u8Quality(item.value); @@ -97,22 +105,22 @@ function setupM3u8Controls({ art, shim, option }) { }); } } - async function updateAudio(state) { + async function updateAudio(state2) { const config = option.m3u8?.audio || {}; - if (!canRender(config) || !state?.audios.length || state.audios.length < 2) { + if (!canRender(config) || !state2?.audios.length || state2.audios.length < 2) { clearAudio(); return; } const auto = config.auto || "Auto"; const title = config.title || "Audio"; const getName = config.getName || ((track) => track.name || track.lang || track.language); - const defaultHtml = state.currentAudio ? getName(state.currentAudio) : auto; + const defaultHtml = state2.currentAudio ? getName(state2.currentAudio) : auto; const selector = uniqBy( - state.audios.map((item) => { + state2.audios.map((item) => { return { html: getName(item), value: item.id, - default: state.currentAudio?.id === item.id + default: state2.currentAudio?.id === item.id }; }), "html" @@ -120,7 +128,7 @@ function setupM3u8Controls({ art, shim, option }) { selector.push({ html: auto, value: "auto", - default: !state.currentAudio + default: !state2.currentAudio }); const onSelect = async (item) => { await shim.switchM3u8Audio(item.value); @@ -151,15 +159,15 @@ function setupM3u8Controls({ art, shim, option }) { } } async function update() { - const state = await shim.getM3u8State(); - if (!state) { + const state2 = await shim.getM3u8State(); + if (!state2) { clearQuality(); clearAudio(); return; } await Promise.all([ - updateQuality(state), - updateAudio(state) + updateQuality(state2), + updateAudio(state2) ]); } art.on("video:loadedmetadata", update); @@ -168,32 +176,39 @@ function setupM3u8Controls({ art, shim, option }) { } class EventTarget { constructor() { + __privateAdd(this, _closed, false); this.listeners = /* @__PURE__ */ new Map(); } addEventListener(type, fn) { - if (!this.listeners.has(type)) { + if (__privateGet(this, _closed)) + return; + if (!this.listeners.has(type)) this.listeners.set(type, []); - } - this.listeners.get(type).push(fn); + this.listeners.get(type)?.push(fn); } removeEventListener(type, fn) { const list = this.listeners.get(type); if (!list) return; const index = list.indexOf(fn); - if (index >= 0) { + if (index >= 0) list.splice(index, 1); - } } emit(type, detail) { - const evt = new Event(type); - evt.detail = detail; - const list = this.listeners.get(type); - if (list) { - list.forEach((fn) => fn(evt)); - } + if (__privateGet(this, _closed)) + return; + const event = Object.assign(new Event(type), { detail }); + this.listeners.get(type)?.forEach((fn) => { + if (!__privateGet(this, _closed)) + fn(event); + }); + } + destroy() { + __privateSet(this, _closed, true); + this.listeners.clear(); } } +_closed = new WeakMap(); function assert(x) { if (!x) { throw new Error("Assertion failed."); @@ -479,7 +494,7 @@ const mapAsyncGenerator = (generator, map) => { } }; }; -const clamp$1 = (value, min, max) => { +const clamp = (value, min, max) => { return Math.max(min, Math.min(max, value)); }; const UNDETERMINED_LANGUAGE = "und"; @@ -15172,7 +15187,7 @@ class UrlSource extends PathedSource { if (baseSize === null) { return this._length !== null ? this._length : null; } - return clamp$1(baseSize - this._offset, 0, this._length ?? Infinity); + return clamp(baseSize - this._offset, 0, this._length ?? Infinity); } /** @internal */ _read(start, end, minReadPosition, maxReadPosition) { @@ -16113,7 +16128,7 @@ class RangedSource extends Source { return null; } } - return clamp$1(baseSize - this._offset, 0, this._length ?? Infinity); + return clamp(baseSize - this._offset, 0, this._length ?? Infinity); } /** @internal */ _read(start, end, minReadPosition, maxReadPosition) { @@ -19826,13 +19841,13 @@ const getWriteFunction = (format) => { switch (format) { case "u8": case "u8-planar": - return (view, offset, value) => view.setUint8(offset, clamp$1((value + 1) * 127.5, 0, 255)); + return (view, offset, value) => view.setUint8(offset, clamp((value + 1) * 127.5, 0, 255)); case "s16": case "s16-planar": - return (view, offset, value) => view.setInt16(offset, clamp$1(Math.round(value * 32767), -32768, 32767), true); + return (view, offset, value) => view.setInt16(offset, clamp(Math.round(value * 32767), -32768, 32767), true); case "s32": case "s32-planar": - return (view, offset, value) => view.setInt32(offset, clamp$1(Math.round(value * 2147483647), -2147483648, 2147483647), true); + return (view, offset, value) => view.setInt32(offset, clamp(Math.round(value * 2147483647), -2147483648, 2147483647), true); case "f32": case "f32-planar": return (view, offset, value) => view.setFloat32(offset, value, true); @@ -20901,7 +20916,7 @@ class ColorAlphaMerger { const blob = new Blob([`(${colorAlphaMergerWorkerCode.toString()})()`], { type: "application/javascript" }); mergerWorkerUrl = URL.createObjectURL(blob); } - const poolSize = clamp$1(navigator.hardwareConcurrency, 1, 4); + const poolSize = clamp(navigator.hardwareConcurrency, 1, 4); for (let i = 0; i < poolSize; i++) { const worker2 = new Worker(mergerWorkerUrl); worker2.addEventListener("message", (event) => { @@ -23165,7 +23180,7 @@ class Reader { return null; } if (this.fileSizeNonStrict !== null) { - return this.requestSlice(start, clamp$1(this.fileSizeNonStrict - start, minLength, maxLength)); + return this.requestSlice(start, clamp(this.fileSizeNonStrict - start, minLength, maxLength)); } else { const promisedAttempt = this.requestSlice(start, maxLength); const handleAttempt = (attempt) => { @@ -23173,7 +23188,7 @@ class Reader { return attempt; } assert(this.fileSizeNonStrict !== null); - return this.requestSlice(start, clamp$1(this.fileSizeNonStrict - start, minLength, maxLength)); + return this.requestSlice(start, clamp(this.fileSizeNonStrict - start, minLength, maxLength)); }; if (isThenable(promisedAttempt)) { return promisedAttempt.then(handleAttempt); @@ -24929,8 +24944,59 @@ class MediaBunnyEngine { return this.video.height; } } -function clamp(v, min, max) { - return Math.max(min, Math.min(max, Number(v) || 0)); +const states = /* @__PURE__ */ new WeakMap(); +function state(owner) { + let value = states.get(owner); + if (!value) { + value = { closed: false, frames: /* @__PURE__ */ new Set() }; + states.set(owner, value); + } + return value; +} +function requestFrame(owner, callback) { + const resource = state(owner); + if (resource.closed) + return 0; + const id = requestAnimationFrame((time) => { + resource.frames.delete(id); + if (resource.closed) + return; + callback(time, { + presentationTime: owner.engine.currentTime, + expectedDisplayTime: time + 16.6, + width: owner.engine.videoWidth, + height: owner.engine.videoHeight, + mediaTime: owner.engine.currentTime, + presentedFrames: 0, + processingDuration: 0, + captureTime: time, + receiveTime: time, + rtpTimestamp: 0 + }); + }); + resource.frames.add(id); + return id; +} +function cancelFrame(owner, id) { + state(owner).frames.delete(id); + cancelAnimationFrame(id); +} +function closeFrames(owner) { + const resource = state(owner); + if (resource.closed) + return false; + resource.closed = true; + for (const id of resource.frames) cancelAnimationFrame(id); + resource.frames.clear(); + return true; +} +function clampVolume(value) { + return Math.max(0, Math.min(1, Number(value) || 0)); +} +function timeRanges(duration, start, end) { + if (!duration || Number.isNaN(duration) || end <= 0) + return { length: 0, start: () => 0, end: () => 0 }; + return { length: 1, start: () => start, end: () => end }; } class VideoShim { constructor({ art, canvas, ctx, option }) { @@ -24999,15 +25065,7 @@ class VideoShim { return this.createTimeRanges(0, this.engine.duration); } createTimeRanges(start, end) { - const duration = this.engine.duration; - if (!duration || Number.isNaN(duration) || end <= 0) { - return { length: 0, start: () => 0, end: () => 0 }; - } - return { - length: 1, - start: () => start, - end: () => end - }; + return timeRanges(this.engine.duration, start, end); } // Playback state get paused() { @@ -25049,7 +25107,7 @@ class VideoShim { return this._volume; } set volume(v) { - this._volume = clamp(v, 0, 1); + this._volume = clampVolume(v); this._muted = false; this.engine.setVolume(this._volume, this._muted); this.events.emit("volumechange"); @@ -25144,24 +25202,10 @@ class VideoShim { return this.canvas.getBoundingClientRect(); } requestVideoFrameCallback(callback) { - const id = requestAnimationFrame((time) => { - callback(time, { - presentationTime: this.engine.currentTime, - expectedDisplayTime: time + 16.6, - width: this.engine.videoWidth, - height: this.engine.videoHeight, - mediaTime: this.engine.currentTime, - presentedFrames: 0, - processingDuration: 0, - captureTime: time, - receiveTime: time, - rtpTimestamp: 0 - }); - }); - return id; + return requestFrame(this, callback); } cancelVideoFrameCallback(id) { - cancelAnimationFrame(id); + cancelFrame(this, id); } setAttribute(name, value) { if (name === "src") { @@ -25173,11 +25217,17 @@ class VideoShim { } else if (name === "muted") { this.muted = true; } else { - this.canvas.setAttribute(name, value); + Reflect.apply(this.canvas.setAttribute, this.canvas, [name, value]); } } destroy() { - this.engine.destroy(); + if (!closeFrames(this)) + return; + try { + this.engine.destroy(); + } finally { + this.events.destroy(); + } } } function artplayerProxyMediabunny(option = {}) { diff --git a/package.json b/package.json index 58569b15c..4b996bb3b 100644 --- a/package.json +++ b/package.json @@ -51,7 +51,7 @@ "ci:build": "yarn build:types && yarn build all && yarn build:i18n && yarn build:ts && yarn build:docs && yarn test:imports", "test:imports": "node --test test/esm.test.js test/i18n.test.js test/ssr.test.js", "typecheck": "node scripts/typecheck.mjs", - "test:unit": "node --test test/mediabunny.test.js test/mediabunny-load.test.js test/mediabunny-input.test.js test/dpip.test.js test/dpip-lifecycle.test.js test/canvas.test.js test/canvas-lifecycle.test.js test/ambilight.test.js test/ambilight-lifecycle.test.js test/ambilight-proxy.test.js test/vast.test.js test/vast-lifecycle.test.js test/ads.test.js test/ads-lifecycle.test.js test/playback.test.js test/dash-control.test.js test/dash-contract.test.js test/dash-lifecycle.test.js test/dash-events.test.js test/hls-control.test.js test/audio-track.test.js test/public-behavior.test.js test/helpers.test.js test/chapter.test.js test/utils.test.js test/resource-scope.test.js test/instance-lifecycle.test.js test/options.test.js test/media-hosts.test.js test/plugins.test.js test/source.test.js test/playback-properties.test.js test/media-events.test.js test/template-resources.test.js test/core-vendor.test.js test/component-resources.test.js test/setting-model.test.js test/setting-layout.test.js test/setting-resources.test.js test/subtitle.test.js test/display-native.test.js test/display-video-fullscreen.test.js test/display-pip.test.js test/display-mini.test.js test/display-sizing.test.js test/display-orientation.test.js test/hotkey.test.js test/listener-registry.test.js test/global-events.test.js test/pointer-events.test.js test/gesture.test.js test/event-scheduling.test.js test/notice.test.js test/fast-forward.test.js test/auto-playback.test.js test/builtin-layers.test.js test/prompt-components.test.js test/screenshot.test.js test/thumbnails.test.js test/progress.test.js test/environment.test.js test/storage.test.js test/facade-properties.test.js test/dom-boundaries.test.js test/initialization.test.js test/entry.test.js test/accessibility-button.test.js test/accessibility-focus.test.js test/accessibility-slider.test.js", + "test:unit": "node --test test/mediabunny.test.js test/mediabunny-shim.test.js test/mediabunny-load.test.js test/mediabunny-input.test.js test/dpip.test.js test/dpip-lifecycle.test.js test/canvas.test.js test/canvas-lifecycle.test.js test/ambilight.test.js test/ambilight-lifecycle.test.js test/ambilight-proxy.test.js test/vast.test.js test/vast-lifecycle.test.js test/ads.test.js test/ads-lifecycle.test.js test/playback.test.js test/dash-control.test.js test/dash-contract.test.js test/dash-lifecycle.test.js test/dash-events.test.js test/hls-control.test.js test/audio-track.test.js test/public-behavior.test.js test/helpers.test.js test/chapter.test.js test/utils.test.js test/resource-scope.test.js test/instance-lifecycle.test.js test/options.test.js test/media-hosts.test.js test/plugins.test.js test/source.test.js test/playback-properties.test.js test/media-events.test.js test/template-resources.test.js test/core-vendor.test.js test/component-resources.test.js test/setting-model.test.js test/setting-layout.test.js test/setting-resources.test.js test/subtitle.test.js test/display-native.test.js test/display-video-fullscreen.test.js test/display-pip.test.js test/display-mini.test.js test/display-sizing.test.js test/display-orientation.test.js test/hotkey.test.js test/listener-registry.test.js test/global-events.test.js test/pointer-events.test.js test/gesture.test.js test/event-scheduling.test.js test/notice.test.js test/fast-forward.test.js test/auto-playback.test.js test/builtin-layers.test.js test/prompt-components.test.js test/screenshot.test.js test/thumbnails.test.js test/progress.test.js test/environment.test.js test/storage.test.js test/facade-properties.test.js test/dom-boundaries.test.js test/initialization.test.js test/entry.test.js test/accessibility-button.test.js test/accessibility-focus.test.js test/accessibility-slider.test.js", "test:coverage": "node --test test/coverage.test.js && node scripts/coverage.mjs", "test": "yarn test:node && yarn test:baseline", "test:browser": "playwright test", @@ -76,7 +76,7 @@ "test:canvas-types-package": "node refactor/scripts/canvas-package-types.mjs", "test:dpip": "node --test test/dpip.test.js test/dpip-lifecycle.test.js", "test:dpip-types-package": "node refactor/scripts/dpip-package-types.mjs", - "test:mediabunny": "node --test test/mediabunny.test.js test/mediabunny-load.test.js test/mediabunny-input.test.js" + "test:mediabunny": "node --test test/mediabunny.test.js test/mediabunny-shim.test.js test/mediabunny-load.test.js test/mediabunny-input.test.js" }, "browserslist": "last 1 Chrome version", "devDependencies": { diff --git a/packages/artplayer-proxy-mediabunny/ARCHITECTURE.md b/packages/artplayer-proxy-mediabunny/ARCHITECTURE.md index bf91e996d..00c011a3f 100644 --- a/packages/artplayer-proxy-mediabunny/ARCHITECTURE.md +++ b/packages/artplayer-proxy-mediabunny/ARCHITECTURE.md @@ -17,13 +17,31 @@ declarations, the factory signature, canvas forwarding, or package entrypoints. | `load-session.ts` | Ownership of the pending/active SDK Input, HEAD AbortController, deferred load events and deadline | | `MediaBunnyEngine.js` | Current coordinator; connects session cancellation to load, source replacement, errors and destroy | | `VideoEngine.js` / `AudioEngine.js` | Current native decoding, rendering, seeking, Web Audio clock and scheduling | -| `VideoShim.js` / `EventTarget.js` | Current video-like descriptors and event forwarding | +| `VideoShim.ts` / `EventTarget.ts` | Video-like descriptors, synchronous/Promise forwarding and owned event lifecycle | +| `shim-values.ts` | Existing volume coercion and synthetic TimeRanges values | +| `shim-frames.ts` | Synthetic frame callbacks, per-instance RAF ownership and terminal cleanup | +| `engine-types.ts` / `MediaBunnyEngine.d.ts` | Explicit temporary coordinator boundary while its JavaScript implementation is migrated in MB-04 | | `m3u8.js` | Current ArtPlayer control/setting integration | -The six TypeScript modules use strict checking with `skipLibCheck: false` and no -ambient Node types. Remaining JavaScript is explicitly scheduled in PKG-MB-04/05/06/07/08. +The eleven TypeScript modules use strict checking with `skipLibCheck: false` and no +ambient Node types. The adjacent coordinator declaration is a transitional boundary, +not proof that the JavaScript coordinator has been checked. Replace it with the actual +strict implementation before completing MB-04. Remaining JavaScript is explicitly +scheduled in PKG-MB-04/05/06/07/08. Do not describe the whole package as migrated yet. +The shim keeps its existing own-property order and direct prototype surface because +the entry copies those descriptors onto the canvas. Resource bookkeeping lives in a +WeakMap rather than adding accidental canvas properties. Frame callback IDs include +zero; destruction cancels pending callbacks and closes scheduling. The callback metadata +remains synthetic (`presentedFrames: 0`), not a claim of decoded frame accuracy. + +EventTarget retains duplicate listeners, first-match removal, live-array `forEach` +mutation semantics, detail identity and listener exceptions during normal dispatch. +Its terminal state stops callbacks later in a dispatch when a listener destroys the +shim. Shim teardown closes events in `finally`, even if engine cleanup throws, and +subsequent teardown is inert. Engine playback/readiness race fixes remain in progress. + ## Input and cancellation flow Each `engine.load` invalidates the previous generation and cancels its session. @@ -69,6 +87,7 @@ yarn test:mediabunny node node_modules/typescript/bin/tsc -p packages/artplayer-proxy-mediabunny/tsconfig.json yarn build artplayer-proxy-mediabunny yarn test:browser test/browser/mediabunny-inputs.spec.js test/browser/mediabunny.spec.js test/browser/mediabunny-load.spec.js +yarn test:browser test/browser/mediabunny-shim.spec.js ``` Node tests use actual SDK parsing and controlled lifecycle interleavings. Browser tests diff --git a/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.js b/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.js index dd37b8f40..e6fe6ae99 100644 --- a/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.js +++ b/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.js @@ -4,4 +4,4 @@ * (c) 2017-2026 Harvey Zhao * Released under the MIT License. */ -!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerProxyMediabunny=t(),define(function(){return e.artplayerProxyMediabunny})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerProxyMediabunny=t()}(this,function(){"use strict";function e(e,t){const i=new Map;return e.filter(e=>{const r=e[t];return void 0===r||!i.has(r)&&i.set(r,1)})}class t{constructor(){this.listeners=new Map}addEventListener(e,t){this.listeners.has(e)||this.listeners.set(e,[]),this.listeners.get(e).push(t)}removeEventListener(e,t){const i=this.listeners.get(e);if(!i)return;const r=i.indexOf(t);r>=0&&i.splice(r,1)}emit(e,t){const i=new Event(e);i.detail=t;const r=this.listeners.get(e);r&&r.forEach(e=>e(i))}}function i(e){if(!e)throw new Error("Assertion failed.")}const r=e=>{const t=(e%360+360)%360;if(0===t||90===t||180===t||270===t)return t;throw new Error(`Invalid rotation ${e}.`)},a=e=>e&&e[e.length-1],s=e=>{let t=0;for(;0===e.readBits(1)&&t<32;)t++;if(t>=32)throw new Error("Invalid exponential-Golomb code.");return(1<{const i=t+1,r=Math.floor(Math.log2(i));e.writeBits(r,0),e.writeBits(1,1),e.writeBits(r,i-2**r)},o=e=>{const t=s(e);return 0===(1&t)?-(t>>1):t+1>>1},c=e=>e.constructor===Uint8Array?e:ArrayBuffer.isView(e)?new Uint8Array(e.buffer,e.byteOffset,e.byteLength):new Uint8Array(e),l=e=>e.constructor===DataView?e:ArrayBuffer.isView(e)?new DataView(e.buffer,e.byteOffset,e.byteLength):new DataView(e),u=new TextDecoder,d=e=>Object.fromEntries(Object.entries(e).map(([e,t])=>[t,e])),h={bt709:1,bt470bg:5,smpte170m:6,bt2020:9,smpte432:12},f=d(h),m={bt709:1,smpte170m:6,linear:8,"iec61966-2-1":13,pq:16,hlg:18},p=d(m),g={rgb:0,bt709:1,bt470bg:5,smpte170m:6,"bt2020-ncl":9},k=d(g),y=e=>!!e&&!!e.primaries&&!!e.transfer&&!!e.matrix&&void 0!==e.fullRange,b={primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0},w=e=>e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e);class T{constructor(){this.currentPromise=Promise.resolve(),this.pending=0}async acquire(){let e;const t=new Promise(t=>{let i=!1;e=()=>{i||(t(),this.pending--,i=!0)}}),i=this.currentPromise;return this.currentPromise=t,this.pending++,await i,e}}const S=/^[0-9a-fA-F]+$/,v=e=>[...e].map(e=>e.toString(16).padStart(2,"0")).join(""),P=e=>(e=(e=(e=(e=(e=e>>1&1431655765|(1431655765&e)<<1)>>2&858993459|(858993459&e)<<2)>>4&252645135|(252645135&e)<<4)>>8&16711935|(16711935&e)<<8)>>16&65535|(65535&e)<<16)>>>0,I=(e,t,i)=>{let r=0,a=e.length-1,s=-1;for(;r<=a;){const n=r+a>>1,o=i(e[n]);o===t?(s=n,a=n-1):o{let r=0,a=e.length-1,s=-1;for(;r<=a;){const n=r+(a-r+1)/2|0;i(e[n])<=t?(s=n,r=n+1):a=n-1}return s},C=(e,t,i)=>{const r=x(e,i(t),i);e.splice(r+1,0,t)},B=()=>{let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}},E=(e,t)=>{const i=e.indexOf(t);-1!==i&&e.splice(i,1)},_=(e,t)=>{for(let i=e.length-1;i>=0;i--)if(t(e[i]))return e[i]},R=(e,t)=>{for(let i=e.length-1;i>=0;i--)if(t(e[i]))return i;return-1},F=e=>{throw new Error(`Unexpected value: ${e}`)},A=(e,t,i)=>{const r=e.getUint8(t),a=e.getUint8(t+1),s=e.getUint8(t+2);return i?r|a<<8|s<<16:r<<16|a<<8|s},D=(e,t,i,r)=>{i>>>=0,i&=16777215,e.setUint8(t,i>>>16&255),e.setUint8(t+1,i>>>8&255),e.setUint8(t+2,255&i)},M=(e,t)=>({async next(){const i=await e.next();return i.done?{value:void 0,done:!0}:{value:t(i.value),done:!1}},return:()=>e.return(),throw:t=>e.throw(t),[Symbol.asyncIterator](){return this}}),N=(e,t,i)=>Math.max(t,Math.min(i,e)),O="und",L=e=>{const t=Math.round(e);return Math.abs(e/t-1)<10*Number.EPSILON?t:e},z=(e,t)=>Math.round(e/t)*t,U=(e,t)=>Math.round(e*t)/t,q=(e,t)=>Math.floor(e/t)*t,W=e=>{let t=0;for(;0!==e;)e&=e-1,t++;return t},H=/^[a-z]{3}$/,V=e=>H.test(e),j=1e6*(1+Number.EPSILON),K=(e,t)=>{const i={...e,...t};if(e.headers||t.headers){const r=e.headers?X(e.headers):{},a=t.headers?X(t.headers):{},s={...r};Object.entries(a).forEach(([e,t])=>{const i=Object.keys(s).find(t=>t.toLowerCase()===e.toLowerCase());i&&delete s[i],s[e]=t}),i.headers=s}return i},X=e=>{if(e instanceof Headers){const t={};return e.forEach((e,i)=>{t[i]=e}),t}if(Array.isArray(e)){const t={};return e.forEach(([e,i])=>{t[e]=i}),t}return e},$=async(e,t,i,r,a)=>{let s=0;for(;;)try{return await e(t,i)}catch(n){if(a())throw n;s++;const e=r(s,n,t);if(null===e)throw n;if(be._error("Retrying failed fetch. Error:",n),!Number.isFinite(e)||e<0)throw new TypeError("Retry delay must be a non-negative finite number.");if(e>0&&await pe(1e3*e),a())throw n}};class G{constructor(){this.currentPromise=Promise.resolve()}call(e){return this.currentPromise=this.currentPromise.then(e)}}let Q=null;const Y=()=>null!==Q?Q:Q=!("undefined"===typeof navigator||!(navigator.vendor?.match(/apple/i)||/AppleWebKit/.test(navigator.userAgent)&&!/Chrome/.test(navigator.userAgent)||/\b(iPad|iPhone|iPod)\b/.test(navigator.userAgent)));let J=null;const Z=()=>null!==J?J:J="undefined"!==typeof navigator&&navigator.userAgent?.includes("Firefox");let ee=null;const te=()=>null!==ee?ee:ee=!("undefined"===typeof navigator||!navigator.vendor?.includes("Google Inc")&&!/Chrome/.test(navigator.userAgent)),ie=e=>"undefined"===typeof globalThis.isSecureContext||globalThis.isSecureContext?`${e} is not available in this environment.`:`${e} is not available in this environment; this may be because this page is running in an insecure context. Try serving your page over HTTPS or use localhost.`,re=(async()=>{})().constructor,ae=e=>e instanceof re||e instanceof Promise||"function"===typeof e?.then,se=(e,t)=>-1!==e?e:t,ne=(e,t,i,r)=>e<=r&&i<=t,oe=e=>{const t=atob(e),i=new Uint8Array(t.length);for(let r=0;r{Symbol.dispose??(Symbol.dispose=Symbol("Symbol.dispose"))},le=e=>"number"===typeof e&&!Number.isNaN(e),ue=(e,t)=>{if(t.includes("://"))return t;if(e.includes("://")){const t=e.indexOf("?");-1!==t&&(e=e.slice(0,t))}let i;if(t.startsWith("/")){const r=e.indexOf("://");if(-1===r)i=t;else{const a=e.indexOf("/",r+3);i=-1===a?e+t:e.slice(0,a)+t}}else{const r=e.lastIndexOf("/");i=-1===r?t:e.slice(0,r+1)+t}let r="";const a=i.indexOf("://");if(-1!==a){const e=i.indexOf("/",a+3);-1!==e&&(r=i.slice(0,e),i=i.slice(e))}const s=i.split("/"),n=[];for(const o of s)".."===o?n.pop():"."!==o&&n.push(o);return r+n.join("/")},de=(e,t)=>{let i=0;for(let r=0;r{let i=-1,r=1/0;for(let a=0;a{i(Number.isInteger(e.num)),i(Number.isInteger(e.den)),i(0!==e.den);let t=Math.abs(e.num),r=Math.abs(e.den);for(;0!==r;){const e=t%r;t=r,r=e}const a=t||1;return{num:e.num/a,den:e.den/a}},me=(e,t)=>{if("object"!==typeof e||!e)throw new TypeError(`${t} must be an object.`);if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(`${t}.left must be a non-negative integer.`);if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(`${t}.top must be a non-negative integer.`);if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(`${t}.width must be a non-negative integer.`);if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(`${t}.height must be a non-negative integer.`)},pe=e=>new Promise(t=>setTimeout(t,e));class ge{constructor(){this._listeners=new Map}on(e,t,i){this._listeners.has(e)||this._listeners.set(e,new Set);const r={fn:t,once:i?.once??!1};return this._listeners.get(e).add(r),()=>{this._listeners.get(e)?.delete(r)}}_emit(...e){const[t,i]=e,r=this._listeners.get(t);if(r)for(const s of r){try{s.fn(i)}catch(a){console.error(a)}s.once&&r.delete(s)}}}var ke,ye;(ye=ke||(ke={}))[ye.Silent=0]="Silent",ye[ye.Errors=1]="Errors",ye[ye.Warnings=2]="Warnings",ye[ye.Info=3]="Info";class be{constructor(){}static get level(){return be._level}static set level(e){if(e!==ke.Silent&&e!==ke.Errors&&e!==ke.Warnings&&e!==ke.Info)throw new TypeError("Invalid log level. Use one of the values of the LogLevel enum.");be._level=e}static get _emitter(){return be._emitterInstance??(be._emitterInstance=new ge)}static on(e,t,i){return be._emitter.on(e,t,i)}static _error(...e){be._emitter._emit("error",e),be._level>=ke.Errors&&console.error(...e)}static _warn(...e){be._emitter._emit("warn",e),be._level>=ke.Warnings&&console.warn(...e)}static _info(...e){be._emitter._emit("info",e),be._level>=ke.Info&&console.info(...e)}}be._level=ke.Info,be._emitterInstance=null;class we{constructor(e,t){if(this.data=e,this.mimeType=t,!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("string"!==typeof t)throw new TypeError("mimeType must be a string.")}}class Te{constructor(e,t,i,r){if(this.data=e,this.mimeType=t,this.name=i,this.description=r,!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if(void 0!==t&&"string"!==typeof t)throw new TypeError("mimeType, when provided, must be a string.");if(void 0!==i&&"string"!==typeof i)throw new TypeError("name, when provided, must be a string.");if(void 0!==r&&"string"!==typeof r)throw new TypeError("description, when provided, must be a string.")}}const Se={default:!0,primary:!0,forced:!1,original:!1,commentary:!1,hearingImpaired:!1,visuallyImpaired:!1};class ve{constructor(e){this.bytes=e,this.pos=0}seekToByte(e){this.pos=8*e}readBit(){const e=Math.floor(this.pos/8),t=this.bytes[e]??0,i=7-(7&this.pos),r=(t&1<>i;return this.pos++,r}readBits(e){if(1===e)return this.readBit();let t=0;for(let i=0;i>i-r-1<0&&this.writeBits(r,t.readBits(r))}readAlignedByte(){if(this.pos%8!==0)throw new Error("Bitstream is not byte-aligned.");const e=this.pos/8,t=this.bytes[e]??0;return this.pos+=8,t}skipBits(e){this.pos+=e}getBitsLeft(){return 8*this.bytes.length-this.pos}clone(){const e=new ve(this.bytes);return e.pos=this.pos,e}}const Pe=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350],Ie=[-1,1,2,3,4,5,6,8],xe=e=>{if(!e||e.byteLength<2)throw new TypeError("AAC description must be at least 2 bytes long.");const t=new ve(e),i=Ce(t),{frequencyIndex:r,sampleRate:a}=Be(t),s=t.readBits(4);let n=null;s>=1&&s<=7&&(n=Ie[s]);let o=i,c=!1,l=a;if(5===i||29===i)c=29===i,l=Be(t).sampleRate,o=Ce(t),22===o&&t.skipBits(4);else for(;t.getBitsLeft()>15;){const e=t.pos;if(695===t.readBits(11)){5===Ce(t)&&t.readBits(1)&&(l=Be(t).sampleRate,t.getBitsLeft()>11&&1352===t.readBits(11)&&(c=!!t.readBits(1)));break}t.pos=e+1}return null!==n&&n>1&&(c=!1),{objectType:i,coreObjectType:o,frequencyIndex:r,channelConfiguration:s,outputSampleRate:l,outputNumberOfChannels:c&&1===n?2:n}},Ce=e=>{const t=e.readBits(5);return 31===t?32+e.readBits(6):t},Be=e=>{const t=e.readBits(4);return 15===t?{frequencyIndex:t,sampleRate:e.readBits(24)}:{frequencyIndex:t,sampleRate:t=e.length-2)break;t=r;let a=0;t+3i&&(yield{offset:i,length:t-i}),i=t+a,t=i):t++}-1!==i&&i{if(t.description){const i=3&c(t.description)[4];return Ne(e,i+1)}return Me(e)},Le=e=>31&e,ze=e=>{const t=[],i=e.length;for(let r=0;r{const t=e.reduce((e,t)=>e+Ue.byteLength+t.byteLength,0),i=new Uint8Array(t);let r=0;for(const a of e)i.set(Ue,r),r+=Ue.byteLength,i.set(a,r),r+=a.byteLength;return i},We=(e,t)=>{const i=e.reduce((e,i)=>e+t+i.byteLength,0),r=new Uint8Array(i);let a=0;for(const s of e){const e=new DataView(r.buffer,r.byteOffset,r.byteLength);switch(t){case 1:e.setUint8(a,s.byteLength);break;case 2:e.setUint16(a,s.byteLength,!1);break;case 3:D(e,a,s.byteLength);break;case 4:e.setUint32(a,s.byteLength,!1)}a+=t,r.set(s,a),a+=s.byteLength}return r},He=e=>{try{const t=[],r=[],a=[];for(const i of Me(e)){const s=e.subarray(i.offset,i.offset+i.length),n=Le(s[0]);n===Re.SPS?t.push(s):n===Re.PPS?r.push(s):n===Re.SPS_EXT&&a.push(s)}if(0===t.length)return null;if(0===r.length)return null;const s=t[0],n=Xe(s);i(null!==n);const o=100===n.profileIdc||110===n.profileIdc||122===n.profileIdc||144===n.profileIdc;return{configurationVersion:1,avcProfileIndication:n.profileIdc,profileCompatibility:n.constraintFlags,avcLevelIndication:n.levelIdc,lengthSizeMinusOne:3,sequenceParameterSets:t,pictureParameterSets:r,chromaFormat:o?n.chromaFormatIdc:null,bitDepthLumaMinus8:o?n.bitDepthLumaMinus8:null,bitDepthChromaMinus8:o?n.bitDepthChromaMinus8:null,sequenceParameterSetExt:o?a:null}}catch(t){return be._error("Error building AVC Decoder Configuration Record:",t),null}},Ve=e=>{const t=[];t.push(e.configurationVersion),t.push(e.avcProfileIndication),t.push(e.profileCompatibility),t.push(e.avcLevelIndication),t.push(252|3&e.lengthSizeMinusOne),t.push(224|31&e.sequenceParameterSets.length);for(const i of e.sequenceParameterSets){const e=i.byteLength;t.push(e>>8),t.push(255&e);for(let r=0;r>8),t.push(255&e);for(let r=0;r>8),t.push(255&e);for(let r=0;r{try{const t=l(e);let i=0;const r=t.getUint8(i++),a=t.getUint8(i++),s=t.getUint8(i++),n=t.getUint8(i++),o=3&t.getUint8(i++),c=31&t.getUint8(i++),u=[];for(let l=0;l{try{const t=ze(e),r=new ve(t);r.skipBits(1),r.skipBits(2);if(7!==r.readBits(5))return null;const n=r.readAlignedByte(),c=r.readAlignedByte(),l=r.readAlignedByte();s(r);let u=1,d=0,h=0,f=0;if(100===n||110===n||122===n||244===n||44===n||83===n||86===n||118===n||128===n){u=s(r),3===u&&(f=r.readBits(1)),d=s(r),h=s(r),r.skipBits(1);if(r.readBits(1))for(let e=0;e<(3!==u?8:12);e++){if(r.readBits(1)){const t=e<6?16:64;let i=8,a=8;for(let e=0;ee.level>=l)??a(Vt),r=Math.min(Math.floor(i.maxDpbMbs/(e*t)),16);C=r,B=r}else C=0,B=0}return i(null!==B),{emulationUnpreventedBytes:t,profileIdc:n,constraintFlags:c,levelIdc:l,frameMbsOnlyFlag:T,chromaFormatIdc:u,bitDepthLumaMinus8:d,bitDepthChromaMinus8:h,codedWidth:k,codedHeight:y,displayWidth:b,displayHeight:w,pixelAspectRatio:x,colourPrimaries:S,matrixCoefficients:P,transferCharacteristics:v,fullRangeFlag:I,numReorderFrames:C,maxDecFrameBuffering:B,vuiParametersFlagBitOffset:R,bitstreamRestrictionFlagBitOffset:E,bitstreamRestrictionFlag:_}}catch(t){return be._error("Error parsing AVC SPS:",t),null}},$e=e=>{const t=s(e);e.skipBits(4),e.skipBits(4);for(let i=0;i<=t;i++)s(e),s(e),e.skipBits(1);e.skipBits(5),e.skipBits(5),e.skipBits(5),e.skipBits(5)},Ge=e=>{i(1!==e.bitstreamRestrictionFlag);const t=new Uint8Array(e.emulationUnpreventedBytes.byteLength+64),r=new ve(e.emulationUnpreventedBytes),a=new ve(t);null===e.bitstreamRestrictionFlag?(a.copyBits(e.vuiParametersFlagBitOffset,r),a.writeBits(1,1),a.writeBits(1,0),a.writeBits(1,0),a.writeBits(1,0),a.writeBits(1,0),a.writeBits(1,0),a.writeBits(1,0),a.writeBits(1,0),a.writeBits(1,0)):(i(null!==e.bitstreamRestrictionFlagBitOffset),a.copyBits(e.bitstreamRestrictionFlagBitOffset,r)),a.writeBits(1,1),a.writeBits(1,1),n(a,2),n(a,1),n(a,16),n(a,16),n(a,e.numReorderFrames),n(a,e.maxDecFrameBuffering),a.writeBits(1,1),a.writeBits((8-a.pos%8)%8,0);const s=a.pos/8;return i(Number.isInteger(s)),(e=>{const t=[];let i=0;for(const r of e)2===i&&r<=3&&(t.push(3),i=0),t.push(r),i=0===r?i+1:0;return new Uint8Array(t)})(t.subarray(0,s))},Qe=(e,t)=>{if(t.description){const i=3&c(t.description)[21];return Ne(e,i+1)}return Me(e)},Ye=e=>e>>1&63,Je=e=>{try{const t=new ve(ze(e));t.skipBits(16),t.readBits(4);const i=t.readBits(3),r=t.readBits(1),{general_profile_space:a,general_tier_flag:n,general_profile_idc:o,general_profile_compatibility_flags:c,general_constraint_indicator_flags:l,general_level_idc:u}=et(t,i);s(t);const d=s(t);let h=0;3===d&&(h=t.readBits(1));const f=s(t),m=s(t);let p=f,g=m;if(t.readBits(1)){const e=s(t),i=s(t),r=s(t),a=s(t);let n=1,o=1;const c=0===h?d:0;1===c?(n=2,o=2):2===c&&(n=2,o=1),p-=(e+i)*n,g-=(r+a)*o}const k=s(t),y=s(t);s(t);const b=t.readBits(1);let w=0;for(let e=b?0:i;e<=i;e++)s(t),w=s(t),s(t);s(t),s(t),s(t),s(t),s(t),s(t),t.readBits(1)&&t.readBits(1)&&tt(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),s(t),s(t),t.skipBits(1));const T=s(t);if(it(t,T),t.readBits(1)){const e=s(t);for(let i=0;i{try{const t=[],i=[],r=[],a=[];for(const s of Me(e)){const n=e.subarray(s.offset,s.offset+s.length),o=Ye(n[0]);o===Ae.VPS_NUT?t.push(n):o===Ae.SPS_NUT?i.push(n):o===Ae.PPS_NUT?r.push(n):o!==Ae.PREFIX_SEI_NUT&&o!==Ae.SUFFIX_SEI_NUT||a.push(n)}if(0===i.length||0===r.length)return null;const n=Je(i[0]);if(!n)return null;let c=0;if(r.length>0){const e=r[0],t=new ve(ze(e));t.skipBits(16),s(t),s(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),s(t),s(t),o(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&s(t),o(t),o(t),t.skipBits(1),t.skipBits(1),t.skipBits(1),t.skipBits(1);const i=t.readBits(1),a=t.readBits(1);c=i||a?i&&!a?2:!i&&a?3:0:0}const l=[...t.length?[{arrayCompleteness:1,nalUnitType:Ae.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:Ae.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:Ae.PPS_NUT,nalUnits:r}]:[],...a.length?[{arrayCompleteness:1,nalUnitType:Ye(a[0][0]),nalUnits:a}]:[]];return{configurationVersion:1,generalProfileSpace:n.generalProfileSpace,generalTierFlag:n.generalTierFlag,generalProfileIdc:n.generalProfileIdc,generalProfileCompatibilityFlags:n.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:n.generalConstraintIndicatorFlags,generalLevelIdc:n.generalLevelIdc,minSpatialSegmentationIdc:n.minSpatialSegmentationIdc,parallelismType:c,chromaFormatIdc:n.chromaFormatIdc,bitDepthLumaMinus8:n.bitDepthLumaMinus8,bitDepthChromaMinus8:n.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:n.spsMaxSubLayersMinus1+1,temporalIdNested:n.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:l}}catch(t){return be._error("Error building HEVC Decoder Configuration Record:",t),null}},et=(e,t)=>{const i=e.readBits(2),r=e.readBits(1),a=e.readBits(5);let s=0;for(let u=0;u<32;u++)s=s<<1|e.readBits(1);const n=new Uint8Array(6);for(let u=0;u<6;u++)n[u]=e.readBits(8);const o=e.readBits(8),c=[],l=[];for(let u=0;u0)for(let u=t;u<8;u++)e.skipBits(2);for(let u=0;u{for(let t=0;t<4;t++)for(let i=0;i<(3===t?2:6);i++){if(e.readBits(1)){const i=Math.min(64,1<<4+(t<<1));t>1&&o(e);for(let t=0;t{const i=[];for(let r=0;r{let a=0,n=0,o=0;if(0!==t&&(n=e.readBits(1)),n){if(t===i){o=t-(s(e)+1)}else o=t-1;e.readBits(1),s(e);const n=r[o]??0;for(let t=0;t<=n;t++){e.readBits(1)||e.readBits(1)}a=r[o]}else{const t=s(e),i=s(e);for(let r=0;r{let i=2,r=2,a=2,n=0,o=0,c={num:1,den:1};if(e.readBits(1)){const t=e.readBits(8);if(255===t)c={num:e.readBits(16),den:e.readBits(16)};else{const e=Ke[t];e&&(c=e)}}return e.readBits(1)&&e.readBits(1),e.readBits(1)&&(e.readBits(3),n=e.readBits(1),e.readBits(1)&&(i=e.readBits(8),r=e.readBits(8),a=e.readBits(8))),e.readBits(1)&&(s(e),s(e)),e.readBits(1),e.readBits(1),e.readBits(1),e.readBits(1)&&(s(e),s(e),s(e),s(e)),e.readBits(1)&&(e.readBits(32),e.readBits(32),e.readBits(1)&&s(e),e.readBits(1)&&st(e,!0,t)),e.readBits(1)&&(e.readBits(1),e.readBits(1),e.readBits(1),o=s(e),s(e),s(e),s(e),s(e)),{pixelAspectRatio:c,colourPrimaries:i,transferCharacteristics:r,matrixCoefficients:a,fullRangeFlag:n,minSpatialSegmentationIdc:o}},st=(e,t,i)=>{let r=!1,a=!1,n=!1;r=1===e.readBits(1),a=1===e.readBits(1),(r||a)&&(n=1===e.readBits(1),n&&(e.readBits(8),e.readBits(5),e.readBits(1),e.readBits(5)),e.readBits(4),e.readBits(4),n&&e.readBits(4),e.readBits(5),e.readBits(5),e.readBits(5));for(let o=0;o<=i;o++){let t=!0;1===e.readBits(1)||(t=1===e.readBits(1));let i=!1;t?s(e):i=1===e.readBits(1);let o=1;if(!i){o=s(e)+1}r&&nt(e,o,n),a&&nt(e,o,n)}},nt=(e,t,i)=>{for(let r=0;r{const i=new Set;let r=ot.audAllowed;for(const s of Qe(e,t)){if(r===ot.noMoreDataAllowed){i.add(s.offset);continue}const t=Ye(e[s.offset]);if(r===ot.eoBitstreamAllowed&&37!==t){i.add(s.offset);continue}let a=!1;35===t?r>ot.audAllowed?a=!0:r=ot.beforeFirstVcl:t<=31?r>ot.afterFirstVcl?a=!0:r=ot.afterFirstVcl:36===t?r!==ot.afterFirstVcl?a=!0:r=ot.eoBitstreamAllowed:37===t?r=41&&t<=44||t>=48&&t<=55?r>ot.beforeFirstVcl?a=!0:r=ot.beforeFirstVcl:(38===t||40===t||t>=45&&t<=47||t>=56&&t<=63)&&r{if(t.description){const i=3&c(t.description)[21];return We(e,i+1)}return qe(e)})(a,t)},ut={1:{colourPrimaries:5,transferCharacteristics:6,matrixCoefficients:5},2:{colourPrimaries:1,transferCharacteristics:1,matrixCoefficients:1},3:{colourPrimaries:6,transferCharacteristics:6,matrixCoefficients:6},4:{colourPrimaries:7,transferCharacteristics:7,matrixCoefficients:7},5:{colourPrimaries:9,transferCharacteristics:14,matrixCoefficients:9},7:{colourPrimaries:1,transferCharacteristics:13,matrixCoefficients:0}},dt=e=>{const t=new ve(e);if(2!==t.readBits(2))return null;const i=t.readBits(1),r=(t.readBits(1)<<1)+i;3===r&&t.skipBits(1);if(1===t.readBits(1))return null;if(0!==t.readBits(1))return null;t.skipBits(2);if(4817730!==t.readBits(24))return null;let s=8;if(r>=2){s=t.readBits(1)?12:10}const n=t.readBits(3);let o=0,c=0;if(7!==n){if(c=t.readBits(1),1===r||3===r){const e=t.readBits(1),i=t.readBits(1);o=e||i?e&&!i?2:1:3,t.skipBits(1)}else o=1}else o=3,c=1;const l=(t.readBits(16)+1)*(t.readBits(16)+1);let u=a(jt).level;for(const a of jt)if(l<=a.maxPictureSize){u=a.level;break}const d=ut[n];return{profile:r,level:u,bitDepth:s,chromaSubsampling:o,videoFullRangeFlag:c,colourPrimaries:d?.colourPrimaries??2,transferCharacteristics:d?.transferCharacteristics??2,matrixCoefficients:d?.matrixCoefficients??2}},ht=function*(e){const t=new ve(e),r=()=>{let e=0;for(let i=0;i<8;i++){const r=t.readAlignedByte();if(e+=(127&r)*2**(7*i),!(128&r))break;if(7===i&&128&r)return null}return e>2**32-1?null:e};for(;t.getBitsLeft()>=8;){t.skipBits(1);const a=t.readBits(4),s=t.readBits(1),n=t.readBits(1);let o;if(t.skipBits(1),s&&t.skipBits(8),n){const e=r();if(null===e)return;o=e}else o=Math.floor(t.getBitsLeft()/8);i(t.pos%8===0),yield{type:a,data:e.subarray(t.pos/8,t.pos/8+o)},t.skipBits(8*o)}},ft=e=>{for(const{type:t,data:i}of ht(e)){if(1!==t)continue;const e=new ve(i),r=e.readBits(3);e.readBits(1);const a=e.readBits(1);let s=0,n=0,o=0;if(a)s=e.readBits(5);else{let t=0;if(e.readBits(1)){e.skipBits(32),e.skipBits(32);if(e.readBits(1)){let t=0;for(;t<32&&!e.readBits(1);)t++;t<32&&e.skipBits(t)}t=e.readBits(1),t&&(o=e.readBits(5),e.skipBits(32),e.skipBits(5),e.skipBits(5))}const i=e.readBits(1),r=e.readBits(5);for(let a=0;a<=r;a++){e.skipBits(12);const r=e.readBits(5);if(0===a&&(s=r),r>7){const t=e.readBits(1);0===a&&(n=t)}if(t){if(e.readBits(1)){const t=o+1;e.skipBits(t),e.skipBits(t),e.skipBits(1)}}if(i){e.readBits(1)&&e.skipBits(4)}}}const c=e.readBits(4),l=e.readBits(4),u=c+1;e.skipBits(u);const d=l+1;e.skipBits(d);let h=0;if(h=a?0:e.readBits(1),h&&(e.skipBits(4),e.skipBits(3)),e.skipBits(1),e.skipBits(1),e.skipBits(1),!a){e.skipBits(1),e.skipBits(1),e.skipBits(1),e.skipBits(1);const t=e.readBits(1);t&&(e.skipBits(1),e.skipBits(1));let i=0;if(i=e.readBits(1)?2:e.readBits(1),i>0){e.readBits(1)||e.skipBits(1)}t&&e.skipBits(3)}e.skipBits(1),e.skipBits(1),e.skipBits(1);const f=e.readBits(1);let m=8;if(2===r&&f){m=e.readBits(1)?12:10}else r<=2&&(m=f?10:8);let p=0;1!==r&&(p=e.readBits(1));let g=2,k=2,y=2;e.readBits(1)&&(g=e.readBits(8),k=e.readBits(8),y=e.readBits(8));let b=0,w=1,T=1,S=0;return p?b=e.readBits(1):1===g&&13===k&&0===y?(b=1,w=0,T=0):(b=e.readBits(1),0===r?(w=1,T=1):1===r?(w=0,T=0):12===m?(w=e.readBits(1),T=w?e.readBits(1):0):(w=1,T=0),w&&T&&(S=e.readBits(2))),{profile:r,level:s,tier:n,bitDepth:m,monochrome:p,chromaSubsamplingX:w,chromaSubsamplingY:T,chromaSamplePosition:S,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},mt=e=>{if(e.length<36)return null;const t=l(e);if(1768124518!==t.getUint32(4))return null;return t.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:t.getUint8(22),transferCharacteristics:t.getUint8(23),matrixCoefficients:t.getUint8(24)}},pt=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],gt=e=>{if(e.length<7)throw new Error("Setup header is too short.");if(5!==e[0])throw new Error("Wrong packet type in Setup header.");if("vorbis"!==String.fromCharCode(...e.slice(1,7)))throw new Error("Invalid packet signature in Setup header.");const t=e.length,i=new Uint8Array(t);for(let u=0;u97;)if(1===r.readBits(1)){a=r.pos;break}if(0===a)throw new Error("Invalid Setup header: framing bit not found.");let s=0,n=!1,o=0;for(;r.getBitsLeft()>=97;){const e=r.pos,t=r.readBits(8),i=r.readBits(16),a=r.readBits(16);if(t>63||0!==i||0!==a){r.pos=e;break}if(r.skipBits(1),s++,s>64)break;r.clone().readBits(6)+1===s&&(n=!0,o=s)}if(!n)throw new Error("Invalid Setup header: mode header not found.");if(o>63)throw new Error(`Unsupported mode count: ${o}.`);const c=o;r.pos=0,r.skipBits(a);const l=Array(c).fill(0);for(let u=c-1;u>=0;u--)r.skipBits(40),l[u]=r.readBits(1);return{modeBlockflags:l}},kt=(e,t,r)=>{switch(e){case"avc":for(const e of Oe(r,t)){const t=r[e.offset],i=Le(t);if(i>=Re.NON_IDR_SLICE&&i<=Re.SLICE_DPC)return"delta";if(i===Re.IDR)return"key";if(i===Re.SEI&&!te()){const t=r.subarray(e.offset,e.offset+e.length),i=ze(t);let a=1;do{let e=0;for(;;){const t=i[a++];if(void 0===t)break;if(e+=t,t<255)break}let t=0;for(;;){const e=i[a++];if(void 0===e)break;if(t+=e,e<255)break}if(e===6){const e=new ve(i);e.pos=8*a;const t=s(e),r=e.readBits(1);if(0===t&&1===r)return"key"}a+=t}while(a{var i,r;const a=l(e);let s=0;const n=a.getUint32(s,!0);s+=4;const o=u.decode(e.subarray(s,s+n));s+=n,n>0&&(t.raw??(t.raw={}),(i=t.raw).vendor??(i.vendor=o));const c=a.getUint32(s,!0);s+=4;for(let d=0;d0&&(t.trackNumber??(t.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(t.tracksTotal??(t.tracksTotal=r))}break;case"TRACKTOTAL":{const e=Number.parseInt(d,10);Number.isInteger(e)&&e>0&&(t.tracksTotal??(t.tracksTotal=e))}break;case"DISCNUMBER":{const e=d.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(t.discNumber??(t.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(t.discsTotal??(t.discsTotal=r))}break;case"DISCTOTAL":{const e=Number.parseInt(d,10);Number.isInteger(e)&&e>0&&(t.discsTotal??(t.discsTotal=e))}break;case"DATE":{const e=new Date(d);Number.isNaN(e.getTime())||(t.date??(t.date=e))}break;case"GENRE":t.genre??(t.genre=d);break;case"METADATA_BLOCK_PICTURE":{const e=oe(d),i=l(e),r=i.getUint32(0,!1),a=i.getUint32(4,!1),s=String.fromCharCode(...e.subarray(8,8+a)),n=i.getUint32(8+a,!1),o=u.decode(e.subarray(12+a,12+a+n)),c=i.getUint32(a+n+28),h=e.subarray(a+n+32,a+n+32+c);t.images??(t.images=[]),t.images.push({data:h,mimeType:s,kind:3===r?"coverFront":4===r?"coverBack":"unknown",name:void 0,description:o||void 0})}}}},Tt=[2,1,2,3,3,4,4,5],St=e=>{if(e.length<7)return null;if(11!==e[0]||119!==e[1])return null;const t=new ve(e);t.skipBits(16),t.skipBits(16);const i=t.readBits(2);if(3===i)return null;const r=t.readBits(6),a=t.readBits(5);if(a>8)return null;const s=t.readBits(3),n=t.readBits(3);0!==(1&n)&&1!==n&&t.skipBits(2),0!==(4&n)&&t.skipBits(2),2===n&&t.skipBits(2);return{fscod:i,bsid:a,bsmod:s,acmod:n,lfeon:t.readBits(1),bitRateCode:Math.floor(r/2)}},vt=[128,138,192,128,140,192,160,174,240,160,176,240,192,208,288,192,210,288,224,242,336,224,244,336,256,278,384,256,280,384,320,348,480,320,350,480,384,416,576,384,418,576,448,486,672,448,488,672,512,556,768,512,558,768,640,696,960,640,698,960,768,834,1152,768,836,1152,896,974,1344,896,976,1344,1024,1114,1536,1024,1116,1536,1280,1392,1920,1280,1394,1920,1536,1670,2304,1536,1672,2304,1792,1950,2688,1792,1952,2688,2048,2228,3072,2048,2230,3072,2304,2506,3456,2304,2508,3456,2560,2786,3840,2560,2788,3840],Pt=[1,2,3,6],It=e=>{if(e.length<6)return null;if(11!==e[0]||119!==e[1])return null;const t=new ve(e);t.skipBits(16);const i=t.readBits(2);if(t.skipBits(3),0!==i&&2!==i)return null;const r=t.readBits(11),a=t.readBits(2);let s,n=0;3===a?(n=t.readBits(2),s=3):s=t.readBits(2);const o=t.readBits(3),c=t.readBits(1),l=t.readBits(5);if(l<11||l>16)return null;const u=Pt[s];let d;d=a<3?Ee[a]/1e3:_e[n]/1e3;return{dataRate:Math.round((r+1)*d/(16*u)),substreams:[{fscod:a,fscod2:n,bsid:l,bsmod:0,acmod:o,lfeon:c,numDepSub:0,chanLoc:0}]}},xt=e=>{const t=e.substreams[0];return i(t),t.fscod<3?Ee[t.fscod]:null!==t.fscod2&&t.fscod2<3?_e[t.fscod2]:null},Ct=e=>{const t=e.substreams[0];i(t);let r=Tt[t.acmod]+t.lfeon;if(t.numDepSub>0){const e=[2,2,1,1,2,2,2,1,1];for(let i=0;i<9;i++)t.chanLoc&1<<8-i&&(r+=e[i])}return r},Bt=[0,8e3,16e3,32e3,0,0,11025,22050,44100,0,0,12e3,24e3,48e3,96e3,192e3],Et=[32e3,56e3,64e3,96e3,112e3,128e3,192e3,224e3,256e3,32e4,384e3,448e3,512e3,576e3,64e4,768e3,96e4,1024e3,1152e3,128e4,1344e3,1408e3,1411200,1472e3,1536e3,192e4,2048e3,3072e3,384e4,0,0,0],_t=[16,16,20,20,0,24,24,0],Rt=[1,2,2,2,2,3,3,4,4,5,6,6,6,7,8,8],Ft=[1,2,2,2,2,3,18,19,6,7,518,323,83,519,582,535],At=[32e3,44100,48e3,0],Dt=[8e3,16e3,32e3,64e3,128e3,22050,44100,88200,176400,352800,12e3,24e3,48e3,96e3,192e3,384e3],Mt=[512,1024,2048,4096],Nt=e=>{const t=Lt(e),i=l(e);let r=t?4*Math.ceil(t.frameSize/4):0,a=null;for(;r+4<=e.length&&1683496997===i.getUint32(r);){const t=zt(e.subarray(r));if(!t)break;a??(a=t),r+=t.frameSize}if(t)return{frameSize:a?r:t.frameSize,sampleRate:t.sampleRate,numberOfChannels:t.numberOfChannels,sampleCount:t.sampleCount,channelLayout:t.channelLayout,pcmResolution:t.pcmResolution,bitRate:t.bitRate,core:t,hasExtensions:null!==a};if(!a?.asset)return null;const{asset:s}=a;return{frameSize:r,sampleRate:s.sampleRate,numberOfChannels:s.numberOfChannels,sampleCount:s.sampleCount,channelLayout:s.channelLayout,pcmResolution:s.pcmResolution,bitRate:0,core:null,hasExtensions:!0}},Ot=e=>{const t=Nt(e);return t?.core?t.hasExtensions?"dtsh":"dtsc":null},Lt=e=>{if(e.length<18)return null;if(127!==e[0]||254!==e[1]||128!==e[2]||1!==e[3])return null;const t=new ve(e);if(t.skipBits(32),t.skipBits(1),31!==t.readBits(5))return null;const i=t.readBits(1),r=t.readBits(7)+1;if(r%8!==0)return null;const a=t.readBits(14)+1;if(a<96)return null;const s=t.readBits(6);if(s>=Rt.length)return null;const n=Bt[t.readBits(4)];if(0===n)return null;const o=Et[t.readBits(5)];if(0!==t.readBits(1))return null;t.skipBits(4),t.skipBits(5);const c=t.readBits(2);if(3===c)return null;t.skipBits(1),i&&t.skipBits(16),t.skipBits(7);const l=_t[t.readBits(3)];if(0===l)return null;const u=0!==c;return{frameSize:a,sampleRate:n,numberOfChannels:Rt[s]+(u?1:0),sampleCount:32*r,channelLayout:Ft[s]|(u?8:0),amode:s,lfePresent:u,bitRate:o,pcmResolution:l}},zt=e=>{if(e.length<10)return null;if(100!==e[0]||88!==e[1]||32!==e[2]||37!==e[3])return null;const t=new ve(e);t.skipBits(32),t.skipBits(8);const i=t.readBits(2),r=t.readBits(1),a=8+4*r,s=16+4*r;t.skipBits(a);const n=t.readBits(s)+1,o={frameSize:n,asset:null};if(!t.readBits(1))return o;const c=At[t.readBits(2)],l=512*(t.readBits(3)+1);t.readBits(1)&&t.skipBits(36);const u=t.readBits(3)+1,d=t.readBits(3)+1,h=[];for(let k=0;k2&&t.skipBits(1),p>6&&t.skipBits(1),t.readBits(1))){const e=t.readBits(2)+1<<2;g=t.readBits(e)}return 0===c||t.getBitsLeft()<0?o:{frameSize:n,asset:{sampleRate:m,numberOfChannels:p,sampleCount:Math.round(l*m/c),channelLayout:g,pcmResolution:f}}},Ut=e=>W(e)+W(44646&e),qt=["avc","hevc","vp9","av1","vp8","prores"],Wt=["pcm-s16","pcm-s16be","pcm-s24","pcm-s24be","pcm-s32","pcm-s32be","pcm-f32","pcm-f32be","pcm-f64","pcm-f64be","pcm-u8","pcm-s8","ulaw","alaw"],Ht=["aac","opus","mp3","vorbis","flac","ac3","eac3","dts",...Wt],Vt=[{maxMacroblocks:99,maxBitrate:64e3,maxDpbMbs:396,level:10},{maxMacroblocks:396,maxBitrate:192e3,maxDpbMbs:900,level:11},{maxMacroblocks:396,maxBitrate:384e3,maxDpbMbs:2376,level:12},{maxMacroblocks:396,maxBitrate:768e3,maxDpbMbs:2376,level:13},{maxMacroblocks:396,maxBitrate:2e6,maxDpbMbs:2376,level:20},{maxMacroblocks:792,maxBitrate:4e6,maxDpbMbs:4752,level:21},{maxMacroblocks:1620,maxBitrate:4e6,maxDpbMbs:8100,level:22},{maxMacroblocks:1620,maxBitrate:1e7,maxDpbMbs:8100,level:30},{maxMacroblocks:3600,maxBitrate:14e6,maxDpbMbs:18e3,level:31},{maxMacroblocks:5120,maxBitrate:2e7,maxDpbMbs:20480,level:32},{maxMacroblocks:8192,maxBitrate:2e7,maxDpbMbs:32768,level:40},{maxMacroblocks:8192,maxBitrate:5e7,maxDpbMbs:32768,level:41},{maxMacroblocks:8704,maxBitrate:5e7,maxDpbMbs:34816,level:42},{maxMacroblocks:22080,maxBitrate:135e6,maxDpbMbs:110400,level:50},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:51},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:52},{maxMacroblocks:139264,maxBitrate:24e7,maxDpbMbs:696320,level:60},{maxMacroblocks:139264,maxBitrate:48e7,maxDpbMbs:696320,level:61},{maxMacroblocks:139264,maxBitrate:8e8,maxDpbMbs:696320,level:62}],jt=[{maxPictureSize:36864,maxBitrate:2e5,level:10},{maxPictureSize:73728,maxBitrate:8e5,level:11},{maxPictureSize:122880,maxBitrate:18e5,level:20},{maxPictureSize:245760,maxBitrate:36e5,level:21},{maxPictureSize:552960,maxBitrate:72e5,level:30},{maxPictureSize:983040,maxBitrate:12e6,level:31},{maxPictureSize:2228224,maxBitrate:18e6,level:40},{maxPictureSize:2228224,maxBitrate:3e7,level:41},{maxPictureSize:8912896,maxBitrate:6e7,level:50},{maxPictureSize:8912896,maxBitrate:12e7,level:51},{maxPictureSize:8912896,maxBitrate:18e7,level:52},{maxPictureSize:35651584,maxBitrate:18e7,level:60},{maxPictureSize:35651584,maxBitrate:24e7,level:61},{maxPictureSize:35651584,maxBitrate:48e7,level:62}],Kt=".01.01.01.01.00",Xt=".0.110.01.01.01.0",$t=["ap4x","ap4h","apch","apcn","apcs","apco"],Gt=["dtsc","dtsh","dtsl","dtse"],Qt=e=>{const{codec:t,codecDescription:r,colorSpace:s,avcCodecInfo:n,hevcCodecInfo:o,vp9CodecInfo:c,av1CodecInfo:u,proresFormat:d}=e;if("avc"===t){if(i(null!==e.avcType),n){const t=new Uint8Array([n.avcProfileIndication,n.profileCompatibility,n.avcLevelIndication]);return`avc${e.avcType}.${v(t)}`}if(!r||r.byteLength<4)throw new TypeError("AVC decoder description is not provided or is not at least 4 bytes long.");return`avc${e.avcType}.${v(r.subarray(1,4))}`}if("hevc"===t){let e,t,i,a,s,n;if(o)e=o.generalProfileSpace,t=o.generalProfileIdc,i=P(o.generalProfileCompatibilityFlags),a=o.generalTierFlag,s=o.generalLevelIdc,n=[...o.generalConstraintIndicatorFlags];else{if(!r||r.byteLength<23)throw new TypeError("HEVC decoder description is not provided or is not at least 23 bytes long.");const o=l(r),c=o.getUint8(1);e=c>>6&3,t=31&c,i=P(o.getUint32(2)),a=c>>5&1,s=o.getUint8(12),n=[];for(let e=0;e<6;e++)n.push(o.getUint8(6+e))}let c="hev1.";for(c+=["","A","B","C"][e]+t,c+=".",c+=i.toString(16).toUpperCase(),c+=".",c+=0===a?"L":"H",c+=s;n.length>0&&0===n[n.length-1];)n.pop();return n.length>0&&(c+=".",c+=n.map(e=>e.toString(16).toUpperCase()).join(".")),c}if("vp8"===t)return"vp8";if("vp9"===t){if(!c){const t=e.width*e.height;let i=a(jt).level;for(const e of jt)if(t<=e.maxPictureSize){i=e.level;break}return`vp09.00.${i.toString().padStart(2,"0")}.08`}let t=`vp09.${c.profile.toString().padStart(2,"0")}.${c.level.toString().padStart(2,"0")}.${c.bitDepth.toString().padStart(2,"0")}.${c.chromaSubsampling.toString().padStart(2,"0")}`;return t+=`.${c.colourPrimaries.toString().padStart(2,"0")}.${c.transferCharacteristics.toString().padStart(2,"0")}.${c.matrixCoefficients.toString().padStart(2,"0")}.${c.videoFullRangeFlag.toString().padStart(2,"0")}`,t.endsWith(Kt)&&(t=t.slice(0,-15)),t}if("av1"===t){if(!u){const t=e.width*e.height;let i=a(jt).level;for(const e of jt)if(t<=e.maxPictureSize){i=e.level;break}return`av01.0.${i.toString().padStart(2,"0")}M.08`}const t=u.profile,i=u.level.toString().padStart(2,"0"),r=u.tier?"H":"M",n=u.bitDepth.toString().padStart(2,"0"),o=u.monochrome?"1":"0",c=100*u.chromaSubsamplingX+10*u.chromaSubsamplingY+1*(u.chromaSubsamplingX&&u.chromaSubsamplingY?u.chromaSamplePosition:0),l=s?.primaries?h[s.primaries]:1,d=s?.transfer?m[s.transfer]:1,f=s?.matrix?g[s.matrix]:1,p=s?.fullRange?1:0;let k=`av01.${t}.${i}${r}.${n}`;return k+=`.${o}.${c.toString().padStart(3,"0")}`,k+=`.${l.toString().padStart(2,"0")}`,k+=`.${d.toString().padStart(2,"0")}`,k+=`.${f.toString().padStart(2,"0")}`,k+=`.${p}`,k.endsWith(Xt)&&(k=k.slice(0,-17)),k}if("prores"===t)return d??"apch";throw null!==t&&F(t),new TypeError(`Unhandled codec '${t}'.`)},Yt=e=>{switch(e.codec){case"avc":{let t=e.avcCodecInfo?.sequenceParameterSets[0];if(!t&&e.codecDescription&&(t=je(e.codecDescription)?.sequenceParameterSets[0]),t){const e=Xe(t);if(e)return{primaries:f[e.colourPrimaries],transfer:p[e.transferCharacteristics],matrix:k[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"hevc":{let t=e.hevcCodecInfo?.arrays.find(e=>e.nalUnitType===Ae.SPS_NUT)?.nalUnits[0];if(!t&&e.codecDescription&&(t=(e=>{try{const t=l(e);let i=0;const r=t.getUint8(i++),a=t.getUint8(i++),s=a>>6&3,n=a>>5&1,o=31&a,c=t.getUint32(i,!1);i+=4;const u=e.subarray(i,i+6);i+=6;const d=t.getUint8(i++),h=(15&t.getUint8(i++))<<8|t.getUint8(i++),f=3&t.getUint8(i++),m=3&t.getUint8(i++),p=7&t.getUint8(i++),g=7&t.getUint8(i++),k=t.getUint16(i,!1);i+=2;const y=t.getUint8(i++),b=y>>6&3,w=y>>3&7,T=y>>2&1,S=3&y,v=t.getUint8(i++),P=[];for(let l=0;l>7&1,s=63&r,n=t.getUint16(i,!1);i+=2;const o=[];for(let c=0;ce.nalUnitType===Ae.SPS_NUT)?.nalUnits[0]),t){const e=Je(t);if(e)return{primaries:f[e.colourPrimaries],transfer:p[e.transferCharacteristics],matrix:k[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"vp8":break;case"vp9":if(e.vp9CodecInfo)return{primaries:f[e.vp9CodecInfo.colourPrimaries],transfer:p[e.vp9CodecInfo.transferCharacteristics],matrix:k[e.vp9CodecInfo.matrixCoefficients],fullRange:!!e.vp9CodecInfo.videoFullRangeFlag};break;case"av1":if(e.av1CodecInfo)return{primaries:f[e.av1CodecInfo.colourPrimaries],transfer:p[e.av1CodecInfo.transferCharacteristics],matrix:k[e.av1CodecInfo.matrixCoefficients],fullRange:!!e.av1CodecInfo.videoFullRangeFlag};break;case"prores":if(e.proresCodecInfo)return{primaries:f[e.proresCodecInfo.colourPrimaries],transfer:p[e.proresCodecInfo.transferCharacteristics],matrix:k[e.proresCodecInfo.matrixCoefficients],fullRange:e.proresCodecInfo.fullRange}}return{primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0}},Jt=e=>{const{codec:t,codecDescription:i,aacCodecInfo:r,dtsFormat:a}=e;if("aac"===t){if(!r)throw new TypeError("AAC codec info must be provided.");if(r.isMpeg2)return"mp4a.67";{let e;if(null!==r.objectType)e=r.objectType;else{e=xe(i).objectType}return`mp4a.40.${e}`}}if("mp3"===t)return"mp3";if("opus"===t)return"opus";if("vorbis"===t)return"vorbis";if("flac"===t)return"flac";if("ac3"===t)return"ac-3";if("eac3"===t)return"ec-3";if("dts"===t)return a??"dtsc";if(t&&Wt.includes(t))return t;throw new TypeError(`Unhandled codec '${t}'.`)},Zt=48e3,ei=/^pcm-([usf])(\d+)(be)?$/,ti=e=>{if(i(Wt.includes(e)),"ulaw"===e)return{dataType:"ulaw",sampleSize:1,littleEndian:!0,silentValue:255};if("alaw"===e)return{dataType:"alaw",sampleSize:1,littleEndian:!0,silentValue:213};const t=ei.exec(e);let r;i(t),r="u"===t[1]?"unsigned":"s"===t[1]?"signed":"float";return{dataType:r,sampleSize:Number(t[2])/8,littleEndian:"be"!==t[3],silentValue:"pcm-u8"===e?128:0}},ii=e=>e.startsWith("avc1")||e.startsWith("avc3")?"avc":e.startsWith("hev1")||e.startsWith("hvc1")?"hevc":"vp8"===e?"vp8":e.startsWith("vp09")?"vp9":e.startsWith("av01")?"av1":$t.includes(e)?"prores":"mp3"===e||"mp4a.69"===e||"mp4a.6B"===e||"mp4a.6b"===e||"mp4a.40.34"===e?"mp3":e.startsWith("mp4a.40.")||"mp4a.67"===e?"aac":"opus"===e?"opus":"vorbis"===e?"vorbis":"flac"===e?"flac":"ac-3"===e||"ac3"===e?"ac3":"ec-3"===e||"eac3"===e?"eac3":Gt.includes(e)?"dts":"ulaw"===e?"ulaw":"alaw"===e?"alaw":ei.test(e)?e:"webvtt"===e?"webvtt":null,ri=[44100,48e3,32e3],ai=[-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],si=1483304551,ni=1231971951,oi=(e,t)=>3===e?3===t?21:36:3===t?13:21,ci=(e,t)=>{const i=e>>>24,r=e>>>16&255,a=e>>>8&255,s=255&e;if(255!==i&&255!==r&&255!==a&&255!==s)return{header:null,bytesAdvanced:4};if(255!==i)return{header:null,bytesAdvanced:1};if(224!==(224&r))return{header:null,bytesAdvanced:1};let n=0,o=0;16&r?n=8&r?0:1:(n=1,o=1);const c=r>>3&3,l=r>>1&3,u=(a>>2&3)%3,d=s>>6&3,h=s>>4&3,f=s>>3&1,m=s>>2&1,p=3&s,g=ai[16*n*4+16*l+(a>>4&15)];if(-1===g)return{header:null,bytesAdvanced:1};const k=1e3*g,y=ri[u]>>n+o,b=((e,t,i,r,a)=>0===t?0:1===t?Math.floor(144*i/(r<>1&1);if(null!==t&&t{let t=2130706432,i=0;for(;0!==t;)i>>=1,i|=e&t,t>>=8;return i};var ui,di;(di=ui||(ui={}))[di.FrameCount=1]="FrameCount",di[di.FileSize=2]="FileSize",di[di.Toc=4]="Toc";const hi=e=>3===e?1:2;class fi{constructor(e){this.input=e}dispose(){}}const mi=new Uint8Array(0);class pi{constructor(e,t,i,r,a=-1,s,n){if(this.data=e,this.type=t,this.timestamp=i,this.duration=r,this.sequenceNumber=a,e===mi&&void 0===s)throw new Error("Internal error: byteLength must be explicitly provided when constructing metadata-only packets.");if(void 0===s&&(s=e.byteLength),!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("key"!==t&&"delta"!==t)throw new TypeError('type must be either "key" or "delta".');if(!Number.isFinite(i))throw new TypeError("timestamp must be a number.");if(!Number.isFinite(r)||r<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(a))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(s)||s<0)throw new TypeError("byteLength must be a non-negative integer.");if(void 0!==n&&("object"!==typeof n||!n))throw new TypeError("sideData, when provided, must be an object.");if(void 0!==n?.alpha&&!(n.alpha instanceof Uint8Array))throw new TypeError("sideData.alpha, when provided, must be a Uint8Array.");if(void 0!==n?.alphaByteLength&&(!Number.isInteger(n.alphaByteLength)||n.alphaByteLength<0))throw new TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=s,this.sideData=n??{},this.sideData.alpha&&void 0===this.sideData.alphaByteLength&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}get isMetadataOnly(){return this.data===mi}get microsecondTimestamp(){return Math.trunc(j*this.timestamp)}get microsecondDuration(){return Math.trunc(j*this.duration)}toEncodedVideoChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}alphaToEncodedVideoChunk(e=this.type){if(!this.sideData.alpha)throw new TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.sideData.alpha,type:e,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}toEncodedAudioChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to an audio chunk.");if("undefined"===typeof EncodedAudioChunk)throw new Error("EncodedAudioChunk is not available in this environment.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}static fromEncodedChunk(e,t){if(!(e instanceof EncodedVideoChunk||e instanceof EncodedAudioChunk))throw new TypeError("chunk must be an EncodedVideoChunk or EncodedAudioChunk.");const i=new Uint8Array(e.byteLength);return e.copyTo(i),new pi(i,e.type,e.timestamp/1e6,(e.duration??0)/1e6,void 0,void 0,t)}clone(e){if(void 0!==e&&("object"!==typeof e||null===e))throw new TypeError("options, when provided, must be an object.");if(void 0!==e?.data&&!(e.data instanceof Uint8Array))throw new TypeError("options.data, when provided, must be a Uint8Array.");if(void 0!==e?.type&&"key"!==e.type&&"delta"!==e.type)throw new TypeError('options.type, when provided, must be either "key" or "delta".');if(void 0!==e?.timestamp&&!Number.isFinite(e.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(void 0!==e?.duration&&!Number.isFinite(e.duration))throw new TypeError("options.duration, when provided, must be a number.");if(void 0!==e?.sequenceNumber&&!Number.isFinite(e.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(void 0!==e?.sideData&&("object"!==typeof e.sideData||null===e.sideData))throw new TypeError("options.sideData, when provided, must be an object.");return new pi(e?.data??this.data,e?.type??this.type,e?.timestamp??this.timestamp,e?.duration??this.duration,e?.sequenceNumber??this.sequenceNumber,this.byteLength,e?.sideData??this.sideData)}}const gi=e=>{const t=l(e);let i=0;const r=t.getUint8(i);i+=1,i+=3;const a=v(e.subarray(i,i+16));i+=16;let s=null;if(r>0){const r=t.getUint32(i);if(i+=4,r>0){s=[];for(let t=0;te.systemId===t.systemId&&((e,t)=>{if(e.length!==t.length)return!1;for(let i=0;i{let t=To(e);const i=_o(e,4);let r=8;1===t&&(t=Io(e),r=16);const a=t-r;return a<0?null:{name:i,totalSize:t,headerSize:r,contentSize:a}},bi=e=>vo(e)/65536,wi=e=>vo(e)/1073741824,Ti=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=po(e);if(t|=127&i,0===(128&i))break}return t},Si=e=>{let t=ko(e);return e.skip(2),t=Math.min(t,e.remainingLength),u.decode(mo(e,t))},vi=e=>{const t=yi(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=To(e);e.skip(4);const r=mo(e,t.contentSize-8);switch(i){case 1:return u.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new we(r,"image/jpeg");case 14:return new we(r,"image/png");case 27:return new we(r,"image/bmp");default:return r}},Pi=16,Ii=new Uint32Array(256),xi=new Uint32Array(256),Ci=new Uint32Array(256),Bi=new Uint32Array(256),Ei=new Uint32Array(256),_i=new Uint32Array(256),Ri=new Uint32Array(10);let Fi=!1;class Ai{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(Pi/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(Pi),this.out=new Uint8Array(Pi),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){i(16===e.byteLength),i(16===t.byteLength),Fi||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,n=1;s<256;s++)i[s]=n,t[n]=s,n=n^n<<1^(128&n?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let a=r^r<<1^r<<2^r<<3^r<<4;a=a>>>8^255&a^99,e[s]=a}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);Ii[s]=t<<24|t<<16|t<<8|t,_i[s]=i<<24|i<<16|i<<8|i;const a=r(i,14)<<24|r(i,9)<<16|r(i,13)<<8|r(i,11);xi[s]=a,Ci[s]=a>>>8|a<<24,Bi[s]=a>>>16|a<<16,Ei[s]=a>>>24|a<<8}let a=1;for(let s=0;s<10;s++)Ri[s]=a<<24,a=a<<1^(128&a?283:0);Fi=!0})();const r=new DataView(e.buffer,e.byteOffset,e.byteLength),a=new DataView(t.buffer,t.byteOffset,t.byteLength);this.roundkey[0]=r.getUint32(0,!1),this.roundkey[1]=r.getUint32(4,!1),this.roundkey[2]=r.getUint32(8,!1),this.roundkey[3]=r.getUint32(12,!1),this.iv[0]=a.getUint32(0,!1),this.iv[1]=a.getUint32(4,!1),this.iv[2]=a.getUint32(8,!1),this.iv[3]=a.getUint32(12,!1);for(let i=4;i<44;i+=4){const e=this.roundkey[i-1];this.roundkey[i]=this.roundkey[i-4]^4278190080&Ii[e>>>16&255]^16711680&Ii[e>>>8&255]^65280&Ii[e>>>0&255]^255&Ii[e>>>24&255]^Ri[i/4-1],this.roundkey[i+1]=this.roundkey[i-3]^this.roundkey[i],this.roundkey[i+2]=this.roundkey[i-2]^this.roundkey[i+1],this.roundkey[i+3]=this.roundkey[i-1]^this.roundkey[i+2]}for(let i=0,s=40;i>>24&255]]^Ci[255&Ii[t>>>16&255]]^Bi[255&Ii[t>>>8&255]]^Ei[255&Ii[t>>>0&255]]}}decrypt(){let e=this.inView.getUint32(0,!1)^this.roundkey[0],t=this.inView.getUint32(4,!1)^this.roundkey[1],i=this.inView.getUint32(8,!1)^this.roundkey[2],r=this.inView.getUint32(12,!1)^this.roundkey[3];const a=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),n=this.inView.getUint32(8,!1),o=this.inView.getUint32(12,!1);let c,l,u,d;for(let g=1;g<10;g++){const a=4*g;c=xi[e>>>24]^Ci[r>>>16&255]^Bi[i>>>8&255]^Ei[255&t]^this.roundkey[a],l=xi[t>>>24]^Ci[e>>>16&255]^Bi[r>>>8&255]^Ei[255&i]^this.roundkey[a+1],u=xi[i>>>24]^Ci[t>>>16&255]^Bi[e>>>8&255]^Ei[255&r]^this.roundkey[a+2],d=xi[r>>>24]^Ci[i>>>16&255]^Bi[t>>>8&255]^Ei[255&e]^this.roundkey[a+3],e=c,t=l,i=u,r=d}const h=4278190080&_i[e>>>24&255]^16711680&_i[r>>>16&255]^65280&_i[i>>>8&255]^255&_i[t>>>0&255]^this.roundkey[40],f=4278190080&_i[t>>>24&255]^16711680&_i[e>>>16&255]^65280&_i[r>>>8&255]^255&_i[i>>>0&255]^this.roundkey[41],m=4278190080&_i[i>>>24&255]^16711680&_i[t>>>16&255]^65280&_i[e>>>8&255]^255&_i[r>>>0&255]^this.roundkey[42],p=4278190080&_i[r>>>24&255]^16711680&_i[i>>>16&255]^65280&_i[t>>>8&255]^255&_i[e>>>0&255]^this.roundkey[43];this.outView.setUint32(0,h^this.iv[0],!1),this.outView.setUint32(4,f^this.iv[1],!1),this.outView.setUint32(8,m^this.iv[2],!1),this.outView.setUint32(12,p^this.iv[3],!1),this.iv[0]=a,this.iv[1]=s,this.iv[2]=n,this.iv[3]=o}}class Di extends fi{constructor(e){super(e),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=e._reader}async getTrackBackings(){return await this.readMetadata(),this.tracks.map(e=>e.trackBacking)}async getMimeType(){await this.readMetadata();const e=await this.getTrackBackings(),t=await Promise.all(e.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isQuickTime?"quicktime":"mp4");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(e=>"video"===e.info?.type),hasAudio:this.tracks.some(e=>"audio"===e.info?.type),codecStrings:t.filter(Boolean)})}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=0,t=!1,r=!1;for(;;){let i=this.reader.requestSliceRange(e,8,16);if(ae(i)&&(i=await i),!i)break;const a=e,s=yi(i);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=_o(i,4);this.isQuickTime="qt "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(i.filePos,s.contentSize);if(ae(e)&&(e=await e),!e)break;this.moovSlice=e,this.readContiguousBoxes(this.moovSlice);for(const t of this.tracks){const e=t.editListPreviousSegmentDurations/this.movieTimescale;t.editListOffset-=Math.round(e*t.timescale)}t=this.isFragmented&&null!==this.reader.fileSize&&this.reader.fileSize>a+s.totalSize,r=!0;break}if("moof"===s.name){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');await this.copyMetadataFromInitInput(this.input._initInput),t=!1,r=!0;break}}e=a+s.totalSize}if(!r&&this.input._initInput&&await this.copyMetadataFromInitInput(this.input._initInput),t){i(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);ae(e)&&(e=await e),i(e);const t=To(e),r=this.reader.fileSize-t;if(r>=0&&r<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(r,8,16);if(ae(e)&&(e=await e),e){const t=yi(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);ae(i)&&(i=await i),i&&this.readContiguousBoxes(i)}}}}})())}async copyMetadataFromInitInput(e){const t=await e._getDemuxer();if(t.constructor!==Di)throw new Error("Init input must match the input's format.");await t.readMetadata(),this.movieTimescale=t.movieTimescale,this.movieDurationInTimescale=t.movieDurationInTimescale,this.metadataTags=t.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=t.fragmentTrackDefaults,this.psshBoxes=t.psshBoxes;for(const r of t.tracks){const e={id:r.id,demuxer:this,trackBacking:null,disposition:r.disposition,timescale:r.timescale,durationInMediaTimescale:r.durationInMediaTimescale,durationInMovieTimescale:r.durationInMovieTimescale,rotation:r.rotation,internalCodecId:r.internalCodecId,name:r.name,languageCode:r.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:r.editListPreviousSegmentDurations,editListOffset:r.editListOffset,encryptionInfo:r.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:r.info};if(r.trackBacking)if(i(e.info),"video"===e.info.type&&-1!==e.info.width){const t=e;e.trackBacking=new Ni(t),this.tracks.push(e)}else if("audio"===e.info.type&&-1!==e.info.numberOfChannels){const t=e;e.trackBacking=new Oi(t),this.tracks.push(e)}}}getSampleTableForTrack(e){if(e.sampleTable)return e.sampleTable;const t={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=t,null===e.sampleTableByteOffset)return t;i(this.moovSlice);const r=this.moovSlice.slice(e.sampleTableByteOffset);this.currentTrack=e,this.traverseBox(r),this.currentTrack=null;if("audio"===e.info?.type&&e.info.codec&&Wt.includes(e.info.codec)&&0===t.sampleCompositionTimeOffsets.length){i("audio"===e.info?.type);const r=ti(e.info.codec),s=[],n=[];for(let i=0;ie.startIndex),d=t.sampleTimingEntries[u],h=x(t.sampleTimingEntries,l,e=>e.startIndex),f=t.sampleTimingEntries[h],m=d.startDecodeTimestamp+(c-d.startIndex)*d.delta,p=f.startDecodeTimestamp+(l-f.startIndex)*f.delta-m,g=a(s);g&&g.delta===p?g.count++:s.push({startIndex:o.startChunkIndex+i,startDecodeTimestamp:m,count:1,delta:p});const k=o.samplesPerChunk*r.sampleSize*e.info.numberOfChannels;n.push(k)}o.startSampleIndex=o.startChunkIndex,o.samplesPerChunk=1}t.sampleTimingEntries=s,t.sampleSizes=n}if(t.sampleCompositionTimeOffsets.length>0){t.presentationTimestamps=[];for(const e of t.sampleTimingEntries)for(let i=0;ie.presentationTimestamp-t.presentationTimestamp),t.presentationTimestampIndexMap=Array(t.presentationTimestamps.length).fill(-1);for(let e=0;ee.moofOffset===s.moofOffset);if(r)Wi(i,r.timestamp);else{const e=x(t,s.moofOffset-1,e=>e.moofOffset);if(-1!==e){const r=t[e];Wi(i,r.endTimestamp)}}i.startTimestampIsFinal=!0}const r=x(t,i.startTimestamp,e=>e.startTimestamp);if(-1!==r&&t[r].moofOffset===s.moofOffset||t.splice(r+1,0,{moofOffset:s.moofOffset,startTimestamp:i.startTimestamp,endTimestamp:i.endTimestamp}),i.encryptionAuxInfo&&e.encryptionInfo){const t=await Ki(this.reader,e.encryptionInfo,i.encryptionAuxInfo);for(let e=0;e0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;V(t.languageCode)||(t.languageCode=O)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=_o(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:{...b},avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:"soun"===i&&(t.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const t=this.currentTrack;if(!t)break;t.sampleTableByteOffset=X,this.readContiguousBoxes(e.slice(G,$.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=po(e);e.skip(3);const r=To(e);for(let a=0;a0&&(1===n?(e.skip(4),c=8*To(e),e.skip(8)):2===n&&(e.skip(4),l=Eo(e),o=To(e),e.skip(4),c=To(e),u=To(e),e.skip(8))),t.info.numberOfChannels=o,t.info.sampleRate=l,t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+a.totalSize-e.filePos));const d="enca"===s?t.frmaCodecString:s;if(t.frmaCodecString=null,"mp4a"===d);else if("opus"===d)t.info.codec="opus",t.info.sampleRate=Zt;else if("flac"===d)t.info.codec="flac";else if("ulaw"===d)t.info.codec="ulaw";else if("alaw"===d)t.info.codec="alaw";else if("ac-3"===d)t.info.codec="ac3";else if("ec-3"===d)t.info.codec="eac3";else if(Gt.includes(d))t.info.codec="dts",t.info.dtsFormat=d;else if("twos"===d)8===c?t.info.codec="pcm-s8":16===c?t.info.codec=t.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(be._warn(`Unsupported sample size ${c} for codec 'twos'.`),t.info.codec=null);else if("sowt"===d)8===c?t.info.codec="pcm-s8":16===c?t.info.codec="pcm-s16":(be._warn(`Unsupported sample size ${c} for codec 'sowt'.`),t.info.codec=null);else if("raw "===d)t.info.codec="pcm-u8";else if("in24"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if("in32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if("fl32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if("fl64"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if("ipcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?16===e?t.info.codec="pcm-s16":24===e?t.info.codec="pcm-s24":32===e?t.info.codec="pcm-s32":(be._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null):16===e?t.info.codec="pcm-s16be":24===e?t.info.codec="pcm-s24be":32===e?t.info.codec="pcm-s32be":(be._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null)}else if("fpcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?32===e?t.info.codec="pcm-f32":64===e?t.info.codec="pcm-f64":(be._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(be._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===d&&null!==u){const e=c+7>>3,i=Boolean(1&u),r=Boolean(2&u),a=4&u?-1:0;c>0&&c<=64&&(i?32===c&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):a&1<0?(t.encryptionInfo.defaultCryptByteBlock=r>>4,t.encryptionInfo.defaultSkipByteBlock=15&r):(t.encryptionInfo.defaultCryptByteBlock=0,t.encryptionInfo.defaultSkipByteBlock=0),t.encryptionInfo.defaultIsProtected=0!==po(e),t.encryptionInfo.defaultPerSampleIvSize=po(e),t.encryptionInfo.defaultKid=v(mo(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=po(e),r=new Uint8Array(16);r.set(mo(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(i(t.info),0===$.contentSize)break;t.info.codecDescription=mo(e,$.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(i(t.info),0===$.contentSize)break;t.info.codecDescription=mo(e,$.contentSize)}break;case"vpcC":{const t=this.currentTrack;if(!t)break;i("video"===t.info?.type),e.skip(4);const r=po(e),a=po(e),s=po(e),n=s>>4,o=s>>1&7,c=1&s,l=po(e),u=po(e),d=po(e);t.info.vp9CodecInfo={profile:r,level:a,bitDepth:n,chromaSubsampling:o,videoFullRangeFlag:c,colourPrimaries:l,transferCharacteristics:u,matrixCoefficients:d}}break;case"av1C":{const t=this.currentTrack;if(!t)break;i("video"===t.info?.type),e.skip(1);const r=po(e),a=r>>5,s=31&r,n=po(e),o=n>>7,c=n>>6&1,l=n>>4&1,u=n>>3&1,d=n>>2&1,h=3&n,f=2===a&&c?n>>5&1?12:10:c?10:8;e.skip(1);const m=mo(e,$.contentSize-4),p=ft(m);t.info.av1CodecInfo={profile:a,level:s,tier:o,bitDepth:f,monochrome:l,chromaSubsamplingX:u,chromaSubsamplingY:d,chromaSamplePosition:h,videoFullRangeFlag:p?.videoFullRangeFlag??0,colourPrimaries:p?.colourPrimaries??2,transferCharacteristics:p?.transferCharacteristics??2,matrixCoefficients:p?.matrixCoefficients??2}}break;case"colr":{const t=this.currentTrack;if(!t)break;i("video"===t.info?.type);const r=_o(e,4);if("nclx"!==r&&"nclc"!==r)break;const a=ko(e),s=ko(e),n=ko(e);let o;"nclx"===r&&(o=Boolean(128&po(e))),t.info.colorSpace={primaries:f[a],transfer:p[s],matrix:k[n],fullRange:o}}break;case"pasp":{const t=this.currentTrack;if(!t)break;i("video"===t.info?.type);const r=To(e),a=To(e);r>0&&a>0&&(r>a?t.info.squarePixelWidth=Math.round(t.info.width*r/a):t.info.squarePixelHeight=Math.round(t.info.height*a/r))}break;case"esds":{const t=this.currentTrack;if(!t||"audio"!==t.info?.type)break;e.skip(4);i(3===po(e)),Ti(e),e.skip(2);const r=po(e),a=0!==(64&r),s=0!==(32&r);if(0!==(128&r)&&e.skip(2),a){const t=po(e);e.skip(t)}s&&e.skip(2);i(4===po(e));const n=Ti(e),o=e.filePos,c=po(e);if(64===c||103===c?(t.info.codec="aac",t.info.aacCodecInfo={isMpeg2:103===c,objectType:null}):105===c||107===c?t.info.codec="mp3":221===c?t.info.codec="vorbis":169===c?t.info.codec="dts":be._warn(`Unsupported audio codec (objectTypeIndication ${c}) - discarding track.`),e.skip(12),n>e.filePos-o){i(5===po(e));const r=Ti(e);if(t.info.codecDescription=mo(e,r),"aac"===t.info.codec){const e=xe(t.info.codecDescription);null!==e.outputNumberOfChannels&&(t.info.numberOfChannels=e.outputNumberOfChannels),null!==e.outputSampleRate&&(t.info.sampleRate=e.outputSampleRate)}}}break;case"enda":{const t=this.currentTrack;if(!t)break;i("audio"===t.info?.type),t.info.pcmLittleEndian=!!(255&ko(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;i("audio"===t.info?.type),e.skip(4);const r=po(e);t.info.pcmLittleEndian=Boolean(1&r),t.info.pcmSampleSize=po(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;i("audio"===t.info?.type),e.skip(1);const r=po(e),a=ko(e),s=To(e),n=bo(e),o=po(e);let c;c=0!==o?mo(e,2+r):new Uint8Array(0);const l=new Uint8Array(19+c.byteLength),u=new DataView(l.buffer);u.setUint32(0,1332770163,!1),u.setUint32(4,1214603620,!1),u.setUint8(8,1),u.setUint8(9,r),u.setUint16(10,a,!0),u.setUint32(12,s,!0),u.setInt16(16,n,!0),u.setUint8(18,o),l.set(c,19),t.info.codecDescription=l,t.info.numberOfChannels=r}break;case"dfLa":{const t=this.currentTrack;if(!t)break;i("audio"===t.info?.type),e.skip(4);const r=127,a=128,s=e.filePos;for(;e.filePos>>12,a=1+(i>>9&7);t.info.sampleRate=r,t.info.numberOfChannels=a,e.skip(20)}else e.skip(s);if(i&a)break}const n=e.filePos;e.filePos=s;const o=mo(e,n-s),c=new Uint8Array(4+o.byteLength);new DataView(c.buffer).setUint32(0,1716281667,!1),c.set(o,4),t.info.codecDescription=c}break;case"dac3":{const t=this.currentTrack;if(!t)break;i("audio"===t.info?.type);const r=mo(e,3),a=new ve(r),s=a.readBits(2);a.skipBits(8);const n=a.readBits(3),o=a.readBits(1);s<3&&(t.info.sampleRate=Ee[s]),t.info.numberOfChannels=Tt[n]+o}break;case"dec3":{const t=this.currentTrack;if(!t)break;i("audio"===t.info?.type);const r=(e=>{if(e.length<2)return null;const t=new ve(e),i=t.readBits(13),r=t.readBits(3),a=[];for(let s=0;s<=r&&!(Math.ceil(t.pos/8)+3>e.length);s++){const e=t.readBits(2),i=t.readBits(5);t.skipBits(1),t.skipBits(1);const r=t.readBits(3),s=t.readBits(3),n=t.readBits(1);t.skipBits(3);const o=t.readBits(4);let c=0;o>0?c=t.readBits(9):t.skipBits(1),a.push({fscod:e,fscod2:null,bsid:i,bsmod:r,acmod:s,lfeon:n,numDepSub:o,chanLoc:c})}return 0===a.length?null:{dataRate:i,substreams:a}})(mo(e,$.contentSize));if(!r){be._warn("Invalid dec3 box contents, ignoring.");break}const a=xt(r);null!==a&&(t.info.sampleRate=a),t.info.numberOfChannels=Ct(r)}break;case"ddts":{const t=this.currentTrack;if(!t)break;i("audio"===t.info?.type);const r=(e=>{if(e.length<20)return null;const t=l(e),i=t.getUint32(0);if(0===i)return null;const r=new ve(e);r.seekToByte(13);const a=r.readBits(2);r.skipBits(5);const s=r.readBits(1),n=r.readBits(6);r.skipBits(14),r.skipBits(1),r.skipBits(3);const o=r.readBits(16);let c=null;return 0!==o?c=Ut(o):ne.id===i);if(!r)break;const a=To(e),s=(12&a)>>2,n=3&a,o=[po,ko,yo,To],c=o[(48&a)>>4],l=o[s],u=o[n],d=To(e);for(let h=0;he.timestamp-t.timestamp);for(let e=0;e({presentationTimestamp:e.presentationTimestamp,sampleIndex:t})).sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp);for(let i=0;ie.id===u);if(!d)break;const h=this.fragmentTrackDefaults.find(e=>e.trackId===u);this.currentTrack=d,d.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:h?.defaultSampleDescriptionIndex??null,defaultSampleDuration:h?.defaultSampleDuration??null,defaultSampleSize:h?.defaultSampleSize??null,defaultSampleFlags:h?.defaultSampleFlags??null,startTimestamp:null,encryptionAuxInfo:null},r?d.currentFragmentState.baseDataOffset=Io(e):l&&(d.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),a&&(d.currentFragmentState.sampleDescriptionIndex=To(e)),s&&(d.currentFragmentState.defaultSampleDuration=To(e)),n&&(d.currentFragmentState.defaultSampleSize=To(e)),o&&(d.currentFragmentState.defaultSampleFlags=To(e)),c&&(d.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;i(t.currentFragmentState);const r=po(e);e.skip(3);const a=0===r?To(e):Io(e);t.currentFragmentState.startTimestamp=a}break;case"trun":{const t=this.currentTrack;if(!t)break;i(this.currentFragment),i(t.currentFragmentState);const r=po(e),a=yo(e),s=Boolean(1&a),n=Boolean(4&a),o=Boolean(256&a),c=Boolean(512&a),l=Boolean(1024&a),u=Boolean(2048&a),d=To(e);let h=null;s&&(h=vo(e));let f,m=null;n&&(m=To(e)),this.currentFragment.trackData.has(t.id)?(f=this.currentFragment.trackData.get(t.id),null!==h&&(f.currentOffset=t.currentFragmentState.baseDataOffset+h)):(f={track:t,currentTimestamp:0,currentOffset:t.currentFragmentState.baseDataOffset+(h??0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(t.id,f));for(let p=0;p0&&(a=mo(e,r));const s=ji(t);s.defaultSampleInfoSize=i,s.sampleSizes=a,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=po(e);if(1&yo(e)){const i=_o(e,4),r=To(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=To(e);if(0===r)break;r>1&&be._warn("Multiple saio entries are not supported; using the first offset only.");let a=0===i?To(e):Number(Io(e));this.currentFragment&&(a+=this.currentFragment.moofOffset);ji(t).offset=a}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;i(this.currentFragment);const r=this.currentFragment.trackData.get(t.id);if(!r)break;e.skip(1);const a=yo(e),s=Boolean(2&a),n=To(e),o=t.encryptionInfo.defaultPerSampleIvSize;i(null!==o);for(let i=0;i0?a.set(mo(e,o),0):a.set(t.encryptionInfo.defaultConstantIv,0);let n=null;if(s){const t=ko(e);n=[];for(let i=0;i0&&((U=this.metadataTags).trackNumber??(U.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&((q=this.metadataTags).tracksTotal??(q.tracksTotal=i))}break;case"trkn":if(a instanceof Uint8Array&&a.length>=6){const e=l(a),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&((W=this.metadataTags).trackNumber??(W.trackNumber=t)),i>0&&((H=this.metadataTags).tracksTotal??(H.tracksTotal=i))}break;case"disc":case"disk":if(a instanceof Uint8Array&&a.length>=6){const e=l(a),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&((j=this.metadataTags).discNumber??(j.discNumber=t)),i>0&&((K=this.metadataTags).discsTotal??(K.discsTotal=i))}}}}}return e.filePos=Q,!0}}class Mi{constructor(e){this.internalTrack=e,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.tracks)if(r.trackBacking.getType()===t&&i++,r===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const e=this.internalTrack;if(e.durationInMediaTimescale<=0)return null;i(e.trackBacking);const t=await e.trackBacking.getFirstPacket({metadataOnly:!0});return(t?.timestamp??0)+e.durationInMediaTimescale/e.timescale}async getLiveRefreshInterval(){return null}async getFirstPacket(e){const t=await this.fetchPacketForSampleIndex(0,e);return t||!this.internalTrack.demuxer.isFragmented?t:this.performFragmentedLookup(null,e=>e.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,e)}mapTimestampIntoTimescale(e){return L(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}async getPacket(e,t){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a=Li(r,i),s=await this.fetchPacketForSampleIndex(a,t);return Vi(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=x(t.presentationTimestamps,i,e=>e.presentationTimestamp);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id);if(r.sampleIndex+1{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=R(t.presentationTimestamps,e=>t.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=i);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i{if(e===a.fragment){const t=e.trackData.get(this.internalTrack.id).samples.findIndex((e,t)=>e.isKeyFrame&&t>a.sampleIndex);if(-1!==t)return{sampleIndex:t,correctSampleFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.samples.findIndex(e=>e.isKeyFrame);return i(-1!==e),{sampleIndex:e,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)}async fetchPacketForSampleIndex(e,t){if(-1===e)return null;const i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=Ui(i,e);if(!r)return null;let a;if(t.metadataOnly)a=mi;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(ae(t)&&(t=await t),!t)return null;if(a=mo(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=await Ki(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);ee.timestamp),d=-1!==u?this.internalTrack.fragmentLookupTable[u]:null,h=x(this.internalTrack.fragmentPositionCache,r,e=>e.startTimestamp),f=-1!==h?this.internalTrack.fragmentPositionCache[h]:null,m=Math.max(d?.moofOffset??0,f?.moofOffset??0)||null;let p;for(e?null===m||e.moofOffset>=m?(p=e.moofOffset+e.moofSize,o=e):p=m:p=m??0;;){if(o){const e=o.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>a)break}let e=n.reader.requestSliceRange(p,8,16);if(ae(e)&&(e=await e),!e)break;const i=p,r=yi(e);if(!r)break;if("moof"===r.name){o=await n.readFragment(i);const{sampleIndex:e,correctSampleFound:r}=t(o);if(r)return this.fetchPacketInFragment(o,e,s);-1!==e&&(c=o,l=e)}p=i+r.totalSize}if(d&&(!c||c.moofOffset{var e,t,i,r,a;if("avc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("hevc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("vp9"!==this.internalTrack.info.codec||this.internalTrack.info.vp9CodecInfo&&(2!==(a=this.internalTrack.info.vp9CodecInfo).colourPrimaries||2!==a.transferCharacteristics||2!==a.matrixCoefficients))if("av1"!==this.internalTrack.info.codec||this.internalTrack.info.av1CodecInfo&&(e=>2!==e.colourPrimaries||2!==e.transferCharacteristics||2!==e.matrixCoefficients)(this.internalTrack.info.av1CodecInfo)){if("prores"===this.internalTrack.info.codec&&!this.internalTrack.info.proresCodecInfo){const e=await this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=e&&mt(e.data)}}else{const e=await this.getFirstPacket({}),t=e&&ft(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const e=await this.getFirstPacket({}),t=e&&dt(e.data);t&&(this.internalTrack.info.vp9CodecInfo={...this.internalTrack.info.vp9CodecInfo??t,videoFullRangeFlag:t.videoFullRangeFlag,colourPrimaries:t.colourPrimaries,transferCharacteristics:t.transferCharacteristics,matrixCoefficients:t.matrixCoefficients})}else{const e=await this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=e&&Ze(e.data)}else{const e=await this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&He(e.data)}if(!y(this.internalTrack.info.colorSpace)){const a=Yt(this.internalTrack.info);(e=this.internalTrack.info.colorSpace).primaries??(e.primaries=a.primaries),(t=this.internalTrack.info.colorSpace).transfer??(t.transfer=a.transfer),(i=this.internalTrack.info.colorSpace).matrix??(i.matrix=a.matrix),(r=this.internalTrack.info.colorSpace).fullRange??(r.fullRange=a.fullRange)}const s={codec:Qt(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(s.displayAspectWidth=this.internalTrack.info.squarePixelWidth,s.displayAspectHeight=this.internalTrack.info.squarePixelHeight),s})()):null}}class Oi extends Mi{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Ot(e.data)}return{codec:Jt(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})()):null}}const Li=(e,t)=>{if(e.presentationTimestamps){const i=x(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=x(e.sampleTimingEntries,t,e=>e.startDecodeTimestamp);if(-1===i)return-1;const r=e.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},zi=(e,t)=>{if(!e.keySampleIndices)return Li(e,t);if(e.presentationTimestamps){const i=x(e.presentationTimestamps,t,e=>e.presentationTimestamp);if(-1===i)return-1;for(let t=i;t>=0;t--){const i=e.presentationTimestamps[t].sampleIndex;if(-1!==I(e.keySampleIndices,i,e=>e))return i}return-1}{const i=Li(e,t),r=x(e.keySampleIndices,i,e=>e);return e.keySampleIndices[r]??-1}},Ui=(e,t)=>{const r=x(e.sampleTimingEntries,t,e=>e.startIndex),a=e.sampleTimingEntries[r];if(!a||a.startIndex+a.count<=t)return null;let s=a.startDecodeTimestamp+(t-a.startIndex)*a.delta;const n=x(e.sampleCompositionTimeOffsets,t,e=>e.startIndex),o=e.sampleCompositionTimeOffsets[n];o&&t-o.startIndexe.startSampleIndex),u=e.sampleToChunk[l];i(u);const d=u.startChunkIndex+Math.floor((t-u.startSampleIndex)/u.samplesPerChunk),h=e.chunkOffsets[d],f=u.startSampleIndex+(d-u.startChunkIndex)*u.samplesPerChunk;let m=0,p=h;if(1===e.sampleSizes.length)p+=c*(t-f),m+=c*u.samplesPerChunk;else for(let i=f;ie)}},qi=(e,t)=>{if(!e.keySampleIndices)return t+1;const i=x(e.keySampleIndices,t,e=>e);return e.keySampleIndices[i+1]??-1},Wi=(e,t)=>{e.startTimestamp+=t,e.endTimestamp+=t;for(const i of e.samples)i.presentationTimestamp+=t;for(const i of e.presentationTimestamps)i.presentationTimestamp+=t},Hi=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},Vi=e=>0===e.sampleSizes.length,ji=e=>{var t;return e.currentFragmentState?(t=e.currentFragmentState).encryptionAuxInfo??(t.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}):e.encryptionAuxInfo??(e.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null})},Ki=async(e,t,r)=>{if(r.resolved)return r.resolved;if(null===r.offset||0===r.sampleCount)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let a=0;if(r.defaultSampleInfoSize>0)a=r.defaultSampleInfoSize*r.sampleCount;else{i(r.sampleSizes);for(let e=0;e0?r.defaultSampleInfoSize:r.sampleSizes[i],a=new Uint8Array(16);n>0?a.set(mo(s,n),0):a.set(t.defaultConstantIv,0);let c=null;if(e>n){const e=ko(s);c=[];for(let t=0;te.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,$i=async(e,t,r,a)=>{i(e.encryptionInfo);const s=e.encryptionInfo;i(null!==s.defaultKid);const n=s.defaultKid;let o;const c=e.demuxer.decryptionKeyCache.get(n);if(c)o=await c;else{if(!e.demuxer.input._formatOptions.isobmff?.resolveKeyId)throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const t=(async()=>{let t=e.demuxer.psshBoxes;if(a){t=[...t,...a.psshBoxes].filter(e=>null===e.keyIds||e.keyIds.includes(n));for(let e=0;e{i(e.length%2===0);const t=new Uint8Array(e.length/2);for(let i=0;i{const s=new Uint8Array(16);s.set(r.iv,0);const n=await crypto.subtle.importKey("raw",e,{name:"AES-CTR"},!1,["decrypt"]),o=async e=>{const t=await crypto.subtle.decrypt({name:"AES-CTR",counter:s,length:64},n,e);return new Uint8Array(t)};if(!r.subsamples)return o(a);i(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const c=Yi(r.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock);let l=0;for(const i of c)for(const e of i.perSubsample)l+=e.length;const u=new Uint8Array(l);let d=0;for(const i of c)for(const e of i.perSubsample)u.set(a.subarray(e.offset,e.offset+e.length),d),d+=e.length;const h=await o(u),f=new Uint8Array(a);let m=0;for(const i of c)for(const e of i.perSubsample)f.set(h.subarray(m,m+e.length),e.offset),m+=e.length;return f},Qi=(e,t,r,a)=>{const s=new Ai;s.init({key:e,iv:r.iv});const n=t.defaultCryptByteBlock,o=t.defaultSkipByteBlock;if(i(null!==n&&null!==o),!r.subsamples){const e=new Uint8Array(a),t=Math.floor(a.length/16);for(let i=0;i{const r=[],a=0!==t||0!==i;let s=0;for(const n of e){s+=n.clearLen;const e=[];if(a){let r=n.protectedLen,a=s;for(;r>0&&!(r<16*t);){const s=16*t;e.push({offset:a,length:s}),a+=s,r-=s;const n=Math.min(16*i,r);a+=n,r-=n}s+=n.protectedLen}else n.protectedLen>0&&e.push({offset:s,length:n.protectedLen}),s+=n.protectedLen;r.push({perSubsample:e})}return r};var Ji,Zi;(Zi=Ji||(Ji={}))[Zi.EBML=440786851]="EBML",Zi[Zi.EBMLVersion=17030]="EBMLVersion",Zi[Zi.EBMLReadVersion=17143]="EBMLReadVersion",Zi[Zi.EBMLMaxIDLength=17138]="EBMLMaxIDLength",Zi[Zi.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",Zi[Zi.DocType=17026]="DocType",Zi[Zi.DocTypeVersion=17031]="DocTypeVersion",Zi[Zi.DocTypeReadVersion=17029]="DocTypeReadVersion",Zi[Zi.Void=236]="Void",Zi[Zi.Segment=408125543]="Segment",Zi[Zi.SeekHead=290298740]="SeekHead",Zi[Zi.Seek=19899]="Seek",Zi[Zi.SeekID=21419]="SeekID",Zi[Zi.SeekPosition=21420]="SeekPosition",Zi[Zi.Duration=17545]="Duration",Zi[Zi.Info=357149030]="Info",Zi[Zi.TimestampScale=2807729]="TimestampScale",Zi[Zi.MuxingApp=19840]="MuxingApp",Zi[Zi.WritingApp=22337]="WritingApp",Zi[Zi.Tracks=374648427]="Tracks",Zi[Zi.TrackEntry=174]="TrackEntry",Zi[Zi.TrackNumber=215]="TrackNumber",Zi[Zi.TrackUID=29637]="TrackUID",Zi[Zi.TrackType=131]="TrackType",Zi[Zi.FlagEnabled=185]="FlagEnabled",Zi[Zi.FlagDefault=136]="FlagDefault",Zi[Zi.FlagForced=21930]="FlagForced",Zi[Zi.FlagOriginal=21934]="FlagOriginal",Zi[Zi.FlagHearingImpaired=21931]="FlagHearingImpaired",Zi[Zi.FlagVisualImpaired=21932]="FlagVisualImpaired",Zi[Zi.FlagCommentary=21935]="FlagCommentary",Zi[Zi.FlagLacing=156]="FlagLacing",Zi[Zi.Name=21358]="Name",Zi[Zi.Language=2274716]="Language",Zi[Zi.LanguageBCP47=2274717]="LanguageBCP47",Zi[Zi.CodecID=134]="CodecID",Zi[Zi.CodecPrivate=25506]="CodecPrivate",Zi[Zi.CodecDelay=22186]="CodecDelay",Zi[Zi.SeekPreRoll=22203]="SeekPreRoll",Zi[Zi.DefaultDuration=2352003]="DefaultDuration",Zi[Zi.Video=224]="Video",Zi[Zi.PixelWidth=176]="PixelWidth",Zi[Zi.PixelHeight=186]="PixelHeight",Zi[Zi.DisplayWidth=21680]="DisplayWidth",Zi[Zi.DisplayHeight=21690]="DisplayHeight",Zi[Zi.DisplayUnit=21682]="DisplayUnit",Zi[Zi.AlphaMode=21440]="AlphaMode",Zi[Zi.Audio=225]="Audio",Zi[Zi.SamplingFrequency=181]="SamplingFrequency",Zi[Zi.Channels=159]="Channels",Zi[Zi.BitDepth=25188]="BitDepth",Zi[Zi.SimpleBlock=163]="SimpleBlock",Zi[Zi.BlockGroup=160]="BlockGroup",Zi[Zi.Block=161]="Block",Zi[Zi.BlockAdditions=30113]="BlockAdditions",Zi[Zi.BlockMore=166]="BlockMore",Zi[Zi.BlockAdditional=165]="BlockAdditional",Zi[Zi.BlockAddID=238]="BlockAddID",Zi[Zi.BlockDuration=155]="BlockDuration",Zi[Zi.ReferenceBlock=251]="ReferenceBlock",Zi[Zi.Cluster=524531317]="Cluster",Zi[Zi.Timestamp=231]="Timestamp",Zi[Zi.Cues=475249515]="Cues",Zi[Zi.CuePoint=187]="CuePoint",Zi[Zi.CueTime=179]="CueTime",Zi[Zi.CueTrackPositions=183]="CueTrackPositions",Zi[Zi.CueTrack=247]="CueTrack",Zi[Zi.CueClusterPosition=241]="CueClusterPosition",Zi[Zi.Colour=21936]="Colour",Zi[Zi.MatrixCoefficients=21937]="MatrixCoefficients",Zi[Zi.TransferCharacteristics=21946]="TransferCharacteristics",Zi[Zi.Primaries=21947]="Primaries",Zi[Zi.Range=21945]="Range",Zi[Zi.Projection=30320]="Projection",Zi[Zi.ProjectionType=30321]="ProjectionType",Zi[Zi.ProjectionPoseRoll=30325]="ProjectionPoseRoll",Zi[Zi.Attachments=423732329]="Attachments",Zi[Zi.AttachedFile=24999]="AttachedFile",Zi[Zi.FileDescription=18046]="FileDescription",Zi[Zi.FileName=18030]="FileName",Zi[Zi.FileMediaType=18016]="FileMediaType",Zi[Zi.FileData=18012]="FileData",Zi[Zi.FileUID=18094]="FileUID",Zi[Zi.Chapters=272869232]="Chapters",Zi[Zi.Tags=307544935]="Tags",Zi[Zi.Tag=29555]="Tag",Zi[Zi.Targets=25536]="Targets",Zi[Zi.TargetTypeValue=26826]="TargetTypeValue",Zi[Zi.TargetType=25546]="TargetType",Zi[Zi.TagTrackUID=25541]="TagTrackUID",Zi[Zi.TagEditionUID=25545]="TagEditionUID",Zi[Zi.TagChapterUID=25540]="TagChapterUID",Zi[Zi.TagAttachmentUID=25542]="TagAttachmentUID",Zi[Zi.SimpleTag=26568]="SimpleTag",Zi[Zi.TagName=17827]="TagName",Zi[Zi.TagLanguage=17530]="TagLanguage",Zi[Zi.TagString=17543]="TagString",Zi[Zi.TagBinary=17541]="TagBinary",Zi[Zi.ContentEncodings=28032]="ContentEncodings",Zi[Zi.ContentEncoding=25152]="ContentEncoding",Zi[Zi.ContentEncodingOrder=20529]="ContentEncodingOrder",Zi[Zi.ContentEncodingScope=20530]="ContentEncodingScope",Zi[Zi.ContentCompression=20532]="ContentCompression",Zi[Zi.ContentCompAlgo=16980]="ContentCompAlgo",Zi[Zi.ContentCompSettings=16981]="ContentCompSettings",Zi[Zi.ContentEncryption=20533]="ContentEncryption";const er=[Ji.EBML,Ji.Segment],tr=[Ji.SeekHead,Ji.Info,Ji.Cluster,Ji.Tracks,Ji.Cues,Ji.Attachments,Ji.Chapters,Ji.Tags],ir=[...er,...tr],rr=16,ar=e=>{if(e.remainingLength<1)return null;const t=po(e);if(e.skip(-1),0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;return e.remainingLength{if(e.remainingLength<1)return null;const t=po(e);if(0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;if(e.remainingLength{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let i=0;for(let r=0;r{const t=ar(e);if(null===t)return null;if(e.remainingLength{if(e.remainingLength<1)return null;if(255===po(e))return;e.skip(-1);const t=sr(e);return null===t?null:72057594037927940!==t?t:void 0},lr=e=>{i(e.remainingLength>=2);const t=or(e);if(null===t)return null;const r=cr(e);return null===r?null:{id:t,size:r}},ur=(e,t)=>{const i=mo(e,t);let r=0;for(;r{const i=mo(e,t);let r=0;for(;r{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?Bo(e):Eo(e)},fr=async(e,t,i,r)=>{const a=new Set(i);let s=t;for(;null===r||ss?r:s,found:!1}},mr=async(e,t,i,r)=>{const a=new Set(i);let s=t;for(;se.tracks.map(e=>e.trackBacking))}async getMimeType(){await this.readMetadata();const e=await this.getTrackBackings(),t=await Promise.all(e.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings.filter(Boolean))].join(", ")}"`);return t})({isWebM:this.isWebM,hasVideo:this.segments.some(e=>e.tracks.some(e=>"video"===e.info?.type)),hasAudio:this.segments.some(e=>e.tracks.some(e=>"audio"===e.info?.type)),codecStrings:t.filter(Boolean)})}async getMetadataTags(){await this.readMetadata();for(const t of this.segments)t.metadataTagsCollected||(null!==this.reader.fileSize&&await this.loadSegmentMetadata(t),t.metadataTagsCollected=!0);let e={};for(const t of this.segments)e={...e,...t.metadataTags};return e}readMetadata(){return this.readMetadataPromise??(this.readMetadataPromise=(async()=>{let e=0;for(;;){let t=this.reader.requestSliceRange(e,2,rr);if(ae(t)&&(t=await t),!t)break;const i=lr(t);if(!i)break;const r=i.id;let s=i.size;const n=t.filePos;if(r===Ji.EBML){Er(s);let e=this.reader.requestSlice(n,s);if(ae(e)&&(e=await e),!e)break;this.readContiguousElements(e)}else if(r===Ji.Segment){if(await this.readSegment(n,s),void 0===s)break;if(null===this.reader.fileSize)break}else if(r===Ji.Cluster){if(null===this.reader.fileSize)break;if(void 0===s){s=(await fr(this.reader,n,ir,this.reader.fileSize)).pos-n}const e=a(this.segments);e&&(e.elementEndPos=n+s)}Er(s),e=n+s}})())}async readSegment(e,t){this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:void 0===t?null:e+t,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let i=e;for(;null===this.currentSegment.elementEndPos||ie.id===a);if(-1!==o){const e=Nr[o].flag;this.currentSegment[e]=!0,Er(s);let t=this.reader.requestSlice(n,s);ae(t)&&(t=await t),t&&this.readContiguousElements(t)}else if(a===Ji.Tags||a===Ji.Attachments){a===Ji.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,Er(s);let e=this.reader.requestSlice(n,s);ae(e)&&(e=await e),e&&this.readContiguousElements(e)}else if(a===Ji.Cluster){this.currentSegment.clusterSeekStartPos=t;break}if(void 0===s)break;i=n+s}if(this.currentSegment.seekEntries.sort((e,t)=>e.segmentPosition-t.segmentPosition),null!==this.reader.fileSize)for(const n of this.currentSegment.seekEntries){const t=Nr.find(e=>e.id===n.id);if(!t)continue;if(this.currentSegment[t.flag])continue;let i=this.reader.requestSliceRange(e+n.segmentPosition,2,rr);if(ae(i)&&(i=await i),!i)continue;const r=lr(i);if(!r)continue;const{id:a,size:s}=r;if(a!==t.id)continue;Er(s),this.currentSegment[t.flag]=!0;let o=this.reader.requestSlice(i.filePos,s);ae(o)&&(o=await o),o&&this.readContiguousElements(o)}-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3);for(const n of this.currentSegment.tracks)null!==n.defaultDurationNs&&(n.defaultDuration=this.currentSegment.timestampFactor*n.defaultDurationNs/1e9);const r=new Map(this.currentSegment.tracks.map(e=>[e.id,e]));for(const n of this.currentSegment.cuePoints){const e=r.get(n.trackId);e&&e.cuePoints.push(n)}for(const n of this.currentSegment.tracks){n.cuePoints.sort((e,t)=>e.time-t.time);for(let e=0;es&&(s=n.cuePoints.length,a=n);for(const n of this.currentSegment.tracks)0===n.cuePoints.length&&(n.cuePoints=a.cuePoints);this.currentSegment=null}async readCluster(e,t){if(t.lastReadCluster?.elementStartPos===e)return t.lastReadCluster;let r=this.reader.requestSliceRange(e,2,rr);ae(r)&&(r=await r),i(r);const s=e,n=lr(r);i(n);i(n.id===Ji.Cluster);let o=n.size;const c=r.filePos;if(void 0===o){o=(await fr(this.reader,c,ir,t.elementEndPos)).pos-c}let l=this.reader.requestSlice(c,o);ae(l)&&(l=await l);const u={segment:t,elementStartPos:s,elementEndPos:c+o,dataStartPos:c,timestamp:-1,trackData:new Map};if(this.currentCluster=u,l){const e=this.readContiguousElements(l,ir);u.elementEndPos=e}for(const[,d]of u.trackData){const e=d.track;i(d.blocks.length>0);let t=!1;for(let i=0;i({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp);for(let i=0;i({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp));const r=d.blocks[d.presentationTimestamps[0].blockIndex],n=d.blocks[a(d.presentationTimestamps).blockIndex];d.startTimestamp=r.timestamp,d.endTimestamp=n.timestamp+n.duration;const o=x(e.clusterPositionCache,d.startTimestamp,e=>e.startTimestamp);-1!==o&&e.clusterPositionCache[o].elementStartPos===s||e.clusterPositionCache.splice(o+1,0,{elementStartPos:u.elementStartPos,startTimestamp:d.startTimestamp})}return t.lastReadCluster=u,u}getTrackDataInCluster(e,t){let i=e.trackData.get(t);if(!i){const r=e.segment.tracks.find(e=>e.id===t);if(!r)return null;i={track:r,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,i)}return i}expandLacedBlocks(e,t){for(let r=0;r=2;){const i=e.filePos;if(!this.traverseElement(e,t))return i}return e.filePos}traverseElement(e,t){const a=lr(e);if(!a)return!1;if(t&&t.includes(a.id))return!1;const{id:s,size:n}=a,o=e.filePos;switch(Er(n),s){case Ji.DocType:this.isWebM="webm"===ur(e,n);break;case Ji.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(o,n)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case Ji.SeekID:{const t=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=nr(e,n)}break;case Ji.SeekPosition:{const t=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=nr(e,n)}break;case Ji.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=nr(e,n),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case Ji.Duration:if(!this.currentSegment)break;this.currentSegment.duration=hr(e,n);break;case Ji.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:{...Se,primary:!1},trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(o,n)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>"decompress"!==e.data?.type||e.scope!==Fr.Block||e.data.algorithm!==Dr.HeaderStripping)&&(be._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){const e=this.currentTrack.codecId.indexOf("/"),t=-1===e?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,e);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,null!==this.currentTrack.info.displayWidth&&null!==this.currentTrack.info.displayHeight){const e=this.currentTrack.info.displayWidth*this.currentTrack.info.height,t=this.currentTrack.info.displayHeight*this.currentTrack.info.width;e>0&&t>0&&(e>t?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*e/t):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*t/e))}if(this.currentTrack.codecId===pr)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===gr)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===kr)this.currentTrack.info.codec="vp8";else if(t===yr)this.currentTrack.info.codec="vp9";else if(t===br)this.currentTrack.info.codec="av1";else if(t===wr){const e=this.currentTrack.codecPrivate?u.decode(this.currentTrack.codecPrivate):"";$t.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new Ur(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===Tr?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===Sr?this.currentTrack.info.codec="mp3":t===vr?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=Zt):t===Pr?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Ir?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===xr?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Cr?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Br?(this.currentTrack.info.codec="dts","A_DTS/EXPRESS"===this.currentTrack.codecId?this.currentTrack.info.dtsFormat="dtse":"A_DTS/LOSSLESS"===this.currentTrack.codecId&&(this.currentTrack.info.dtsFormat="dtsl")):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));const e=this.currentTrack;this.currentTrack.trackBacking=new qr(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case Ji.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=nr(e,n);break;case Ji.TrackType:{if(!this.currentTrack)break;const t=nr(e,n);1===t?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:{...b},alphaMode:!1,proresFormat:null}:2===t&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case Ji.FlagEnabled:if(!this.currentTrack)break;nr(e,n)||(this.currentTrack=null);break;case Ji.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!nr(e,n);break;case Ji.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!nr(e,n);break;case Ji.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!nr(e,n);break;case Ji.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!nr(e,n);break;case Ji.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!nr(e,n);break;case Ji.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!nr(e,n);break;case Ji.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=ur(e,n);break;case Ji.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=mo(e,n);break;case Ji.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=nr(e,n);break;case Ji.Name:if(!this.currentTrack)break;this.currentTrack.name=dr(e,n);break;case Ji.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=ur(e,n),V(this.currentTrack.languageCode)||(this.currentTrack.languageCode=O);break;case Ji.LanguageBCP47:{if(!this.currentTrack)break;const t=ur(e,n).split("-")[0];this.currentTrack.languageCode=t||O,this.currentTrack.hasLanguageBcp47=!0}break;case Ji.Video:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(o,n));break;case Ji.PixelWidth:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.width=nr(e,n);break;case Ji.PixelHeight:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.height=nr(e,n);break;case Ji.DisplayWidth:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayWidth=nr(e,n);break;case Ji.DisplayHeight:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayHeight=nr(e,n);break;case Ji.DisplayUnit:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayUnit=nr(e,n);break;case Ji.AlphaMode:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.alphaMode=1===nr(e,n);break;case Ji.Colour:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(o,n));break;case Ji.MatrixCoefficients:{if("video"!==this.currentTrack?.info?.type)break;const t=nr(e,n),i=k[t];this.currentTrack.info.colorSpace.matrix=i}break;case Ji.Range:{if("video"!==this.currentTrack?.info?.type)break;const t=nr(e,n);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case Ji.TransferCharacteristics:{if("video"!==this.currentTrack?.info?.type)break;const t=nr(e,n),i=p[t];this.currentTrack.info.colorSpace.transfer=i}break;case Ji.Primaries:{if("video"!==this.currentTrack?.info?.type)break;const t=nr(e,n),i=f[t];this.currentTrack.info.colorSpace.primaries=i}break;case Ji.Projection:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(o,n));break;case Ji.ProjectionPoseRoll:{if("video"!==this.currentTrack?.info?.type)break;const t=-hr(e,n);try{this.currentTrack.info.rotation=r(t)}catch{}}break;case Ji.Audio:if("audio"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(o,n));break;case Ji.SamplingFrequency:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.sampleRate=hr(e,n);break;case Ji.Channels:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.numberOfChannels=nr(e,n);break;case Ji.BitDepth:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.bitDepth=nr(e,n);break;case Ji.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(o,n)),this.currentCueTime=null;break;case Ji.CueTime:this.currentCueTime=nr(e,n);break;case Ji.CueTrackPositions:{if(null===this.currentCueTime)break;i(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(o,n)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case Ji.CueTrack:{const t=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=nr(e,n)}break;case Ji.CueClusterPosition:{const t=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;i(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+nr(e,n)}break;case Ji.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=nr(e,n);break;case Ji.SimpleBlock:{if(!this.currentCluster)break;const t=sr(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=bo(e),a=po(e),s=a>>1&3;let c=!!(128&a);"audio"===i.track.info?.type&&i.track.info.codec&&(c=!0);const l=mo(e,n-(e.filePos-o)),u=i.track.decodingInstructions.length>0;i.blocks.push({timestamp:r,duration:0,isKeyFrame:c,data:l,lacing:s,decoded:!u,postProcessed:!1,mainAdditional:null})}break;case Ji.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(o,n)),this.currentBlock=null;break;case Ji.Block:{if(!this.currentCluster)break;const t=sr(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=bo(e),a=po(e)>>1&3,s=mo(e,n-(e.filePos-o)),c=i.track.decodingInstructions.length>0;this.currentBlock={timestamp:r,duration:0,isKeyFrame:!0,data:s,lacing:a,decoded:!c,postProcessed:!1,mainAdditional:null},i.blocks.push(this.currentBlock)}break;case Ji.BlockAdditions:this.readContiguousElements(e.slice(o,n));break;case Ji.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(o,n)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case Ji.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=mo(e,n);break;case Ji.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=nr(e,n);break;case Ji.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=nr(e,n);break;case Ji.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case Ji.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(o,n));break;case Ji.Targets:this.readContiguousElements(e.slice(o,n));break;case Ji.TargetTypeValue:50!==nr(e,n)&&(this.currentTagTargetIsMovie=!1);break;case Ji.TagTrackUID:case Ji.TagEditionUID:case Ji.TagChapterUID:case Ji.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case Ji.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(o,n));break;case Ji.TagName:this.currentSimpleTagName=dr(e,n);break;case Ji.TagString:{if(!this.currentSimpleTagName)break;const t=dr(e,n);this.processTagValue(this.currentSimpleTagName,t)}break;case Ji.TagBinary:{if(!this.currentSimpleTagName)break;const t=mo(e,n);this.processTagValue(this.currentSimpleTagName,t)}break;case Ji.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(o,n));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(t.raw??(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new Te(this.currentAttachedFile.fileData,this.currentAttachedFile.fileMediaType??void 0,this.currentAttachedFile.fileName??void 0,this.currentAttachedFile.fileDescription??void 0)),this.currentAttachedFile.fileMediaType?.startsWith("image/")&&this.currentAttachedFile.fileData){const e=this.currentAttachedFile.fileName;let i="unknown";if(e){const t=e.toLowerCase();t.startsWith("cover.")?i="coverFront":t.startsWith("back.")&&(i="coverBack")}t.images??(t.images=[]),t.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:i,name:this.currentAttachedFile.fileName??void 0,description:this.currentAttachedFile.fileDescription??void 0})}this.currentAttachedFile=null}break;case Ji.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=((e,t)=>{if(t<1)throw new Error("Bad unsigned int size "+t);let i=0n;for(let r=0;rt.order-e.order);break;case Ji.ContentEncoding:this.currentDecodingInstruction={order:0,scope:Fr.Block,data:null},this.readContiguousElements(e.slice(o,n)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case Ji.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=nr(e,n);break;case Ji.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=nr(e,n);break;case Ji.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:Dr.Zlib,settings:null},this.readContiguousElements(e.slice(o,n));break;case Ji.ContentCompAlgo:if("decompress"!==this.currentDecodingInstruction?.data?.type)break;this.currentDecodingInstruction.data.algorithm=nr(e,n);break;case Ji.ContentCompSettings:if("decompress"!==this.currentDecodingInstruction?.data?.type)break;this.currentDecodingInstruction.data.settings=mo(e,n);break;case Ji.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=o+n,!0}decodeBlockData(e,t){i(e.decodingInstructions.length>0);let r=t;for(const a of e.decodingInstructions)if(i(a.data),"decompress"===a.data.type)if(a.data.algorithm===Dr.HeaderStripping)if(a.data.settings&&a.data.settings.length>0){const e=a.data.settings,t=new Uint8Array(e.length+r.length);t.set(e,0),t.set(r,e.length),r=t}return r}processTagValue(e,t){var i;if(!this.currentSegment?.metadataTags)return;const r=this.currentSegment.metadataTags;if(r.raw??(r.raw={}),(i=r.raw)[e]??(i[e]=t),"string"===typeof t)switch(e.toLowerCase()){case"title":r.title??(r.title=t);break;case"description":r.description??(r.description=t);break;case"artist":r.artist??(r.artist=t);break;case"album":r.album??(r.album=t);break;case"album_artist":r.albumArtist??(r.albumArtist=t);break;case"genre":r.genre??(r.genre=t);break;case"comment":r.comment??(r.comment=t);break;case"lyrics":r.lyrics??(r.lyrics=t);break;case"date":{const e=new Date(t);Number.isNaN(e.getTime())||(r.date??(r.date=e))}break;case"track_number":case"part_number":{const e=t.split("/"),i=Number.parseInt(e[0],10),a=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(r.trackNumber??(r.trackNumber=i)),a&&Number.isInteger(a)&&a>0&&(r.tracksTotal??(r.tracksTotal=a))}break;case"disc_number":case"disc":{const e=t.split("/"),i=Number.parseInt(e[0],10),a=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(r.discNumber??(r.discNumber=i)),a&&Number.isInteger(a)&&a>0&&(r.discsTotal??(r.discsTotal=a))}}}async getDurationFromMetadata(e){if(e.duration<=0)return null;let t=null;for(const a of e.tracks){i(a.trackBacking);const e=await a.trackBacking.getFirstPacket({metadataOnly:!0});e&&(t=Math.min(t??1/0,e.timestamp))}let r=e.duration/e.timestampFactor;return r+=t??0,r}}class zr{constructor(e){this.internalTrack=e,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.segments)for(const e of r.tracks)if(e.trackBacking.getType()===t&&i++,e===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)}async getLiveRefreshInterval(){return null}async getFirstPacket(e){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,e)}intoTimescale(e){return L(e*this.internalTrack.segment.timestampFactor)}async getPacket(e,t){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=x(t.presentationTimestamps,i,e=>e.timestamp);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id);if(i.blockIndex+1{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=R(t.presentationTimestamps,e=>t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=i);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i{if(e===r.cluster){const t=e.trackData.get(this.internalTrack.id).blocks.findIndex((e,t)=>e.isKeyFrame&&t>r.blockIndex);if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.blocks.findIndex(e=>e.isKeyFrame);return i(-1!==e),{blockIndex:e,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)}async fetchPacketInCluster(e,t,r){if(-1===t)return null;const a=e.trackData.get(this.internalTrack.id).blocks[t];if(i(a),a.decoded||(a.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,a.data),a.decoded=!0),!a.postProcessed){if("prores"===this.internalTrack.info?.codec){if(!(a.data.length>=8&&105===a.data[4]&&99===a.data[5]&&112===a.data[6]&&102===a.data[7])){const e=new Uint8Array(a.data.length+8);l(e).setUint32(0,e.length,!1),e[4]=105,e[5]=99,e[6]=112,e[7]=102,e.set(a.data,8),a.data=e}}a.postProcessed=!0}const s=r.metadataOnly?mi:a.data,n=a.timestamp/this.internalTrack.segment.timestampFactor,o=a.duration/this.internalTrack.segment.timestampFactor,c={};a.mainAdditional&&"video"===this.internalTrack.info?.type&&this.internalTrack.info.alphaMode&&(c.alpha=r.metadataOnly?mi:a.mainAdditional,c.alphaByteLength=a.mainAdditional.byteLength);const u=new pi(s,a.isKeyFrame?"key":"delta",n,o,e.dataStartPos+t,a.data.byteLength,c);return this.packetToClusterLocation.set(u,{cluster:e,blockIndex:t}),u}async performClusterLookup(e,t,r,a,s){const{demuxer:n,segment:o}=this.internalTrack;let c=null,l=null,u=-1;if(e){const{blockIndex:i,correctBlockFound:r}=t(e);if(r)return this.fetchPacketInCluster(e,i,s);-1!==i&&(l=e,u=i)}const d=x(this.internalTrack.cuePoints,r,e=>e.time),h=-1!==d?this.internalTrack.cuePoints[d]:null,f=x(this.internalTrack.clusterPositionCache,r,e=>e.startTimestamp),m=-1!==f?this.internalTrack.clusterPositionCache[f]:null,p=Math.max(h?.clusterPosition??0,m?.elementStartPos??0)||null;let g;for(e?null===p||e.elementStartPos>=p?(g=e.elementEndPos,c=e):g=p:g=p??o.clusterSeekStartPos;null===o.elementEndPos||g<=o.elementEndPos-2;){if(c){const e=c.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>a)break}let e=n.reader.requestSliceRange(g,2,rr);if(ae(e)&&(e=await e),!e)break;const r=g,d=lr(e);if(!d||!tr.includes(d.id)&&d.id!==Ji.Void){const e=await mr(n.reader,r,tr,Math.min(o.elementEndPos??1/0,r+Or));if(e){g=e;continue}break}const h=d.id;let f=d.size;const m=e.filePos;if(h===Ji.Cluster){c=await n.readCluster(r,o),f=c.elementEndPos-m;const{blockIndex:e,correctBlockFound:i}=t(c);if(i)return this.fetchPacketInCluster(c,e,s);-1!==e&&(l=c,u=e)}if(void 0===f){i(h!==Ji.Cluster);f=(await fr(n.reader,m,ir,o.elementEndPos)).pos-m}const p=m+f;if(null===o.elementEndPos){let e=n.reader.requestSliceRange(p,2,rr);if(ae(e)&&(e=await e),!e)break;if(or(e)===Ji.Segment){o.elementEndPos=p;break}}g=p}if(h&&(!l||l.elementStartPos{var e,t,i,r;let a=null;("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"prores"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription)&&(a=await this.getFirstPacket({}));const s={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:"avc"===this.internalTrack.info.codec&&a?He(a.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&a?Ze(a.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&a?dt(a.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&a?ft(a.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&a?mt(a.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!y(this.internalTrack.info.colorSpace)){const a=Yt(s);(e=this.internalTrack.info.colorSpace).primaries??(e.primaries=a.primaries),(t=this.internalTrack.info.colorSpace).transfer??(t.transfer=a.transfer),(i=this.internalTrack.info.colorSpace).matrix??(i.matrix=a.matrix),(r=this.internalTrack.info.colorSpace).fullRange??(r.fullRange=a.fullRange)}const n={codec:Qt(s),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(n.displayAspectWidth=this.internalTrack.info.squarePixelWidth,n.displayAspectHeight=this.internalTrack.info.squarePixelHeight),n})()):null}}class qr extends zr{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Ot(e.data)}return{codec:Jt({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})()):null}}const Wr=async(e,t,i,r=null)=>{let a=t;for(;null===i||a=4;){const t=s.filePos,i=To(s),n=null!==e.fileSize?e.fileSize-a:null,o=ci(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&hi(o.header.channel)===hi(r.channel)))return{header:o.header,startPos:a};s.filePos=t+o.bytesAdvanced,a=s.filePos}}return null};class Hr extends fi{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.xingFrameHeader=null,this.xingFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new T,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new Vr(this)]})())}async advanceReader(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,Oo);if(ae(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=qo(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=await Wr(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e)return void(this.lastSampleLoaded=!0);const t=e.header;this.lastLoadedPos=e.startPos+t.totalSize-1;const i=oi(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(ae(r)&&(r=await r),r){const a=To(r);if(a===si||a===ni){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(ae(t)&&(t=await t),t){const e=mo(t,12),i=l(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&ui.FrameCount?i.getUint32(4,!1):null,fileSize:r&ui.FileSize?i.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=t,this.firstFrameHeaderPos=e.startPos);const a=t.audioSamplesInFrame/this.firstFrameHeader.sampleRate,s={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:a,dataStart:e.startPos,dataSize:t.totalSize};this.loadedSamples.push(s),this.nextTimestampInSamples+=t.audioSamplesInFrame}async getMimeType(){return"audio/mpeg"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0,t=!1;for(;;){let i=this.reader.requestSlice(e,Oo);if(ae(i)&&(i=await i),!i)break;const r=qo(i);if(!r)break;t=!0;let a=this.reader.requestSlice(i.filePos,r.size);if(ae(a)&&(a=await a),!a)break;Wo(a,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=No){let e=this.reader.requestSlice(this.reader.fileSize-No,No);ae(e)&&(e=await e),i(e);"TAG"===_o(e,3)&&zo(e,this.metadataTags)}return this.metadataTags}finally{e()}}}class Vr{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return i(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const e=this.demuxer;if(i(null!==e.firstFrameHeader),i(null!==e.firstFrameHeaderPos),e.xingData){if(null!==e.xingData.frameCount)return e.xingData.frameCount*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}else if(null!==e.reader.fileSize){const i=(t=e.firstFrameHeader.lowSamplingFrequency,r=e.firstFrameHeader.layer,a=e.firstFrameHeader.bitrate,s=e.firstFrameHeader.sampleRate,0===r?0:1===r?144*a/(s<e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}}async getPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=x(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1>>0&4294967295}const Xr=e=>{const t=l(e),i=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let a=0;a>>24^t])>>>0}return t.setUint32(22,i,!0),r},$r=(e,t,r)=>{let a=0,s=null;if(e.length>0)if("vorbis"===t.codec){i(t.vorbisInfo);const n=(1<<(e=>{let t=0;for(;e;)t++,e>>=1;return t})(t.vorbisInfo.modeBlockflags.length-1))-1<<1,o=(e[0]&n)>>1;if(o>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let c=r;const l=t.vorbisInfo.modeBlockflags[o];if(s=t.vorbisInfo.blocksizes[l],1===l){const i=1+(1|n),r=e[0]&i?1:0;c=t.vorbisInfo.blocksizes[r]}a=null!==c?c+s>>2:0}else if("opus"===t.codec){a=(e=>{const t=e[0]>>3,i=3&e[0];let r;return r=0===i?1:1===i||2===i?2:63&e[1],{durationInSamples:pt[t]*r}})(e).durationInSamples}return{durationInSamples:a,vorbisBlockSize:s}},Gr=27,Qr=282,Yr=e=>{const t=e.filePos;if(So(e)!==jr)return null;e.skip(1);const i=po(e),r=Co(e),a=So(e),s=So(e),n=So(e),o=po(e),c=new Uint8Array(o);for(let d=0;de+t,0);return{headerStartPos:t,totalSize:l+u,dataStartPos:t+l,dataSize:u,headerType:i,granulePosition:r,serialNumber:a,sequenceNumber:s,checksum:n,lacingValues:c}},Jr=(e,t)=>{for(;e.filePos>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===jr)return!0;e.skip(1)}}return!1};class Zr extends fi{constructor(e){super(e),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=0;for(;;){let t=this.reader.requestSliceRange(e,Gr,Qr);if(ae(t)&&(t=await t),!t)break;const i=Yr(t);if(!i)break;if(!!!(2&i.headerType))break;this.bitstreams.push({serialNumber:i.serialNumber,bosPage:i,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=i.headerStartPos+i.totalSize}for(const t of this.bitstreams){const e=await this.readPacket(t.bosPage,0);e&&(e.data.byteLength>=7&&1===e.data[0]&&118===e.data[1]&&111===e.data[2]&&114===e.data[3]&&98===e.data[4]&&105===e.data[5]&&115===e.data[6]?await this.readVorbisMetadata(e,t):e.data.byteLength>=8&&79===e.data[0]&&112===e.data[1]&&117===e.data[2]&&115===e.data[3]&&72===e.data[4]&&101===e.data[5]&&97===e.data[6]&&100===e.data[7]&&await this.readOpusMetadata(e,t),null!==t.codecInfo.codec&&this.trackBackings.push(new ea(t,this)))}})())}async readVorbisMetadata(e,t){let i=await this.findNextPacketStart(e);if(!i)return;const r=await this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;if(i=await this.findNextPacketStart(r),!i)return;const a=await this.readPacket(i.startPage,i.startSegmentIndex);if(!a)return;if(3!==r.data[0]||5!==a.data[0])return;const s=[],n=e=>{for(;s.push(Math.min(255,e)),!(e<255);)e-=255};n(e.data.length),n(r.data.length);const o=new Uint8Array(1+s.length+e.data.length+r.data.length+a.data.length);o[0]=2,o.set(s,1),o.set(e.data,1+s.length),o.set(r.data,1+s.length+e.data.length),o.set(a.data,1+s.length+e.data.length+r.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=a;const c=l(e.data);t.numberOfChannels=c.getUint8(11),t.sampleRate=c.getUint32(12,!0);const u=c.getUint8(28);t.codecInfo.vorbisInfo={blocksizes:[1<<(15&u),1<<(u>>4)],modeBlockflags:gt(a.data).modeBlockflags},wt(r.data.subarray(7),this.metadataTags)}async readOpusMetadata(e,t){const i=await this.findNextPacketStart(e);if(!i)return;const r=await this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=r;const a=(e=>{const t=l(e),i=t.getUint8(9),r=t.getUint16(10,!0),a=t.getUint32(12,!0),s=t.getInt16(16,!0),n=t.getUint8(18);let o=null;return n&&(o=e.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:a,outputGain:s,channelMappingFamily:n,channelMappingTable:o}})(e.data);t.numberOfChannels=a.outputChannelCount,t.sampleRate=Zt,t.codecInfo.opusInfo={preSkip:a.preSkip},wt(r.data.subarray(8),this.metadataTags)}async readPacket(e,t){i(te+t.length,0);if(0===c)return null;const l=new Uint8Array(c);let u=0;for(let i=0;i{let t="audio/ogg";e.codecStrings&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({codecStrings:(await Promise.all(this.trackBackings.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)))).filter(Boolean)})}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}class ea{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new T,this.internalSampleRate="opus"===e.codecInfo.codec?Zt:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return i(-1!==e),e+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}async getDecoderConfig(){return i(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:this.bitstream.description??void 0}}getName(){return null}getLanguageCode(){return O}getDisposition(){return{...Se,primary:!1}}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(i(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:a}=$r(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new pi(i.metadataOnly?mi:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,r/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:r,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:a}),s}async getFirstPacket(e){i(this.bitstream.lastMetadataPacket);const t=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let r=0;"opus"===this.bitstream.codecInfo.codec&&(i(this.bitstream.codecInfo.opusInfo),r-=this.bitstream.codecInfo.opusInfo.preSkip);const a=await this.demuxer.readPacket(t.startPage,t.startSegmentIndex);return this.createEncodedPacketFromOggPacket(a,{timestampInSamples:r,vorbisLastBlocksize:null},e)}async getNextPacket(e,t){const i=this.encodedPacketToMetadata.get(e);if(!i)throw new Error("Packet was not created from this track.");const r=await this.demuxer.findNextPacketStart(i.packet);if(!r)return null;const a=i.timestampInSamples+i.durationInSamples,s=await this.demuxer.readPacket(r.startPage,r.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:a,vorbisLastBlocksize:i.vorbisBlockSize},t)}async getPacket(e,t){if(null===this.demuxer.reader.fileSize)return this.getPacketSequential(e,t);const r=L(e*this.internalSampleRate);if(0===r)return this.getFirstPacket(t);if(r<0)return null;i(this.bitstream.lastMetadataPacket);const a=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!a)return null;let s=a.startPage,n=this.demuxer.reader.fileSize;const o=[s];e:for(;s.headerStartPos+s.totalSizer?n=u.headerStartPos:(s=u,o.push(u));continue e}a=u.headerStartPos+u.totalSize}}let c=a.startPage;for(const i of o){if(i.granulePosition===s.granulePosition)break;(!c||i.headerStartPos>c.headerStartPos)&&(c=i)}let l=c;const u=[l];for(;l.serialNumber!==this.bitstream.serialNumber||l.granulePosition!==s.granulePosition;){const e=l.headerStartPos+l.totalSize;let t=this.demuxer.reader.requestSliceRange(e,Gr,Qr);ae(t)&&(t=await t),i(t);const r=Yr(t);i(r),l=r,l.serialNumber===this.bitstream.serialNumber&&u.push(l)}i(-1!==l.granulePosition);let d,h,f=null,m=l,p=0;if(l.headerStartPos===a.startPage.headerStartPos)d=this.granulePositionToTimestampInSamples(0),h=!0,f=0;else{d=0,h=!1;for(let t=l.lacingValues.length-1;t>=0;t--){if(l.lacingValues[t]<255){f=t+1;break}}if(null===f)throw new Error("Invalid page with granule position: no packets end on this page.");p=f-1;const e={data:mi,endPage:m,endSegmentIndex:p};if(await this.demuxer.findNextPacketStart(e)){const e=ia(u,l,f);i(e);const t=ta(u,e.page,e.segmentIndex);t&&(l=t.page,f=t.segmentIndex)}else for(;;){const e=ia(u,l,f);if(!e)break;const t=ta(u,e.page,e.segmentIndex);if(!t)break;if(l=t.page,f=t.segmentIndex,e.page.headerStartPos!==m.headerStartPos){m=e.page,p=e.segmentIndex;break}}}let g=null,k=null;for(;null!==l;){i(null!==f);const e=await this.demuxer.readPacket(l,f);if(!e)break;if(!(l.headerStartPos===a.startPage.headerStartPos&&fr||Math.max(s.timestampInSamples,0)===r))break}const s=await this.demuxer.findNextPacketStart(e);if(!s)break;l=s.startPage,f=s.startSegmentIndex}return g}async getPacketSequential(e,t){const r=await this.sequentialScanMutex.acquire();try{const r=L(e*this.internalSampleRate);e=r/this.internalSampleRate;const s=x(this.sequentialScanCache,r,e=>e.timestampInSamples);let n;if(-1!==s){const e=this.sequentialScanCache[s];n=this.createEncodedPacketFromOggPacket(e.packet,{timestampInSamples:e.timestampInSamples,vorbisLastBlocksize:e.vorbisLastBlockSize},t)}else n=await this.getFirstPacket(t);let o=0;for(;n&&n.timestampe)break;if(n=r,o++,100===o){o=0;const e=this.encodedPacketToMetadata.get(n);i(e),this.sequentialScanCache.length>0&&i(a(this.sequentialScanCache).timestampInSamples<=e.timestampInSamples),this.sequentialScanCache.push(e)}}return n}finally{r()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const ta=(e,t,r)=>{let a=t,s=r;e:for(;;){for(s--;s>=0;s--){if(a.lacingValues[s]<255){s++;break e}}i(-1===s);if(!(1&a.headerType)){s=0;break}const t=_(e,e=>e.headerStartPos{if(i>0)return{page:t,segmentIndex:i-1};const r=_(e,e=>e.headerStartPos{let e=this.reader.requestSlice(0,12);ae(e)&&(e=await e),i(e);const t=_o(e,4),r="RIFX"!==t,a="RF64"===t,s=wo(e,r);let n=a?this.reader.fileSize:Math.min(s+8,this.reader.fileSize??1/0);if("WAVE"!==_o(e,4))throw new Error("Invalid WAVE file - wrong format");let o=0,c=null,l=e.filePos;for(;null===n||l=18&&357!==a){const e=go(r,i),s=t-18;if(Math.min(s,e)>=22&&a===ra.EXTENSIBLE){r.skip(6);const e=mo(r,16);a=e[0]|e[1]<<8}}if(a!==ra.MULAW&&a!==ra.ALAW||(c=8),a!==ra.PCM&&a!==ra.IEEE_FLOAT&&a!==ra.ALAW&&a!==ra.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${a}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(a===ra.PCM&&![8,16,24,32].includes(c))throw new Error(`Unsupported WAVE PCM bit depth (${c}). Only 8, 16, 24, and 32 bits are supported.`);if(a===ra.IEEE_FLOAT&&![32,64].includes(c))throw new Error(`Unsupported WAVE float bit depth (${c}). Only 32 and 64 bits are supported.`);this.audioInfo={format:a,numberOfChannels:s,sampleRate:n,sampleSizeInBytes:Math.ceil(c/8),blockSizeInBytes:o}}async parseListChunk(e,t,i){var r,a,s,n,o,c,l,u,d,h,f;let m=this.reader.requestSlice(e,t);if(ae(m)&&(m=await m),!m)return;const p=_o(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=_o(m,4),t=wo(m,i),p=mo(m,t);let k=0;for(let i=0;i0&&((c=this.metadataTags).trackNumber??(c.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&((l=this.metadataTags).tracksTotal??(l.tracksTotal=i))}break;case"ICRD":case"IDIT":{const e=new Date(y);Number.isNaN(e.getTime())||((u=this.metadataTags).date??(u.date=e))}break;case"YEAR":{const e=Number.parseInt(y,10);Number.isInteger(e)&&e>0&&((d=this.metadataTags).date??(d.date=new Date(e,0,1)))}break;case"IGNR":case"GENR":(h=this.metadataTags).genre??(h.genre=y);break;case"ICMT":case"CMNT":case"COMM":(f=this.metadataTags).comment??(f.comment=y)}g+=8+t+(1&t)}}async parseId3Chunk(e,t){let i=this.reader.requestSlice(e,t);if(ae(i)&&(i=await i),!i)return;const r=qo(i);if(r){const a=t-Oo;if(r.size=Math.min(r.size,a),r.size>0){const t=i.slice(e+Oo,r.size);Wo(t,r,this.metadataTags)}}}getCodec(){if(i(this.audioInfo),this.audioInfo.format===ra.MULAW)return"ulaw";if(this.audioInfo.format===ra.ALAW)return"alaw";if(this.audioInfo.format===ra.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}if(this.audioInfo.format===ra.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}i(!1)}async getMimeType(){return"audio/wav"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}const na=2048;class oa{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return i(this.demuxer.audioInfo),this.demuxer.audioInfo.format}async getDecoderConfig(){const e=this.demuxer.getCodec();return e?(i(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null}getNumberOfChannels(){return i(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return i(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return i(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return i(-1!==this.demuxer.dataSize),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return O}getDisposition(){return{...Se}}async getPacketAtIndex(e,t){i(e>=0),i(this.demuxer.audioInfo);const r=e*na*this.demuxer.audioInfo.blockSizeInBytes;if(r>=this.demuxer.dataSize)return null;const a=Math.min(na*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-r);if(null===this.demuxer.reader.fileSize){let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+r,a);if(ae(e)&&(e=await e),!e)return null}let s;if(t.metadataOnly)s=mi;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+r,a);ae(e)&&(e=await e),i(e),s=mo(e,a)}const n=e*na/this.demuxer.audioInfo.sampleRate,o=a/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(e,this.demuxer.lastKnownPacketIndex),new pi(s,"key",n,o,e,a)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getPacket(e,t){i(this.demuxer.audioInfo);const r=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/na,(this.demuxer.dataSize-1)/(na*this.demuxer.audioInfo.blockSizeInBytes)));if(r<0)return null;const a=await this.getPacketAtIndex(r,t);if(a)return a;if(0===r)return null;i(null===this.demuxer.reader.fileSize);let s=await this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,t);for(;s;){const e=await this.getNextPacket(s,t);if(!e)break;s=e}return s}getNextPacket(e,t){i(this.demuxer.audioInfo);const r=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/na);return this.getPacketAtIndex(r+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const ca=e=>{const t=e.filePos,i=mo(e,9),r=new ve(i);if(4095!==r.readBits(12))return null;r.skipBits(1);if(0!==r.readBits(2))return null;const a=r.readBits(1),s=r.readBits(2)+1,n=r.readBits(4);if(15===n)return null;r.skipBits(1);const o=r.readBits(3);if(0===o)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const c=r.readBits(13);r.skipBits(11);const l=r.readBits(2)+1;if(1!==l)throw new Error("ADTS frames with more than one AAC frame are not supported.");let u=null;return 1===a?e.filePos-=2:u=r.readBits(16),{objectType:s,samplingFrequencyIndex:n,channelConfiguration:o,frameLength:c,numberOfAacFrames:l,crcCheck:u,startPos:t}},la=1024;class ua extends fi{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new T,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();i(this.firstFrameHeader),this.trackBackings=[new da(this)]})())}async advanceReader(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,Oo);if(ae(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=qo(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(ae(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=ca(e);if(!t)return void(this.lastSampleLoaded=!0);if(null!==this.reader.fileSize&&t.startPos+t.frameLength>this.reader.fileSize)return void(this.lastSampleLoaded=!0);this.firstFrameHeader||(this.firstFrameHeader=t);const r=Pe[t.samplingFrequencyIndex];i(void 0!==r);const a=la/r,s={timestamp:this.nextTimestampInSamples/r,duration:a,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(s),this.nextTimestampInSamples+=la,this.lastLoadedPos=t.startPos+t.frameLength}async getMimeType(){return"audio/aac"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0;for(;;){let t=this.reader.requestSlice(e,Oo);if(ae(t)&&(t=await t),!t)break;const i=qo(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(ae(r)&&(r=await r),!r)break;Wo(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}}}class da{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/la}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return O}getCodec(){return"aac"}getInternalCodecId(){return i(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){i(this.demuxer.firstFrameHeader);const e=Ie[this.demuxer.firstFrameHeader.channelConfiguration];return i(void 0!==e),e}getSampleRate(){i(this.demuxer.firstFrameHeader);const e=Pe[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return i(void 0!==e),e}getDisposition(){return{...Se}}async getDecoderConfig(){return i(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}}async getPacketAtIndex(e,t){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=mi;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(ae(e)&&(e=await e),!e)return null;r=mo(e,i.dataSize)}return new pi(r,"key",i.timestamp,i.duration,e,i.dataSize)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=I(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}}async getPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=x(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1{var e;let t=0;for(;;){let e=this.reader.requestSlice(t,Oo);if(ae(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const r=qo(e);if(!r)break;let a=this.reader.requestSlice(e.filePos,r.size);ae(a)&&(a=await a),i(a),Wo(a,r,this.metadataTags),t=e.filePos+r.size}for(t+=4;null===this.reader.fileSize||tn.end-6)return{num:o.num,blockSize:o.blockSize,sampleRate:o.sampleRate,size:n.end-e,isLastFrame:!0};if(255===po(n)){const t=n.filePos;if(po(n)!==(1===this.blockingBit?249:248)){n.filePos=t;continue}n.skip(-2);const i=n.filePos-e,r=this.readFlacFrameHeader({slice:n,isFirstPacket:!1});if(!r){n.filePos=t;continue}if(0===this.blockingBit){if(r.num-o.num!==1){n.filePos=t;continue}}else if(r.num-o.num!==o.blockSize){n.filePos=t;continue}return{num:o.num,blockSize:o.blockSize,sampleRate:o.sampleRate,size:i,isLastFrame:!1}}}}readFlacFrameHeader({slice:e,isFirstPacket:t}){const r=e.filePos,a=mo(e,4),s=new ve(a);if(32764!==s.readBits(15))return null;if(null===this.blockingBit){i(t);const e=s.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){i(!t);if(1!==s.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");i(!t);if(0!==s.readBits(1))return null}const n=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*2**e:6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?2**e:null)(s.readBits(4));if(!n)return null;i(this.audioInfo);const o=((e,t)=>{switch(e){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}})(s.readBits(4),this.audioInfo.sampleRate);if(!o)return null;s.readBits(4),s.readBits(3);if(0!==s.readBits(1))return null;const c=(e=>{let t=0;const i=new ve(mo(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],a=t-1,s=new ve(mo(e,a)),n=8-t-1;for(let o=0;oe|t<"uncommon-u16"===t?ko(e)+1:"uncommon-u8"===t?po(e)+1:"number"===typeof t?t:(F(t),void i(!1)))(e,n),u=((e,t)=>"uncommon-u16"===t?ko(e):"uncommon-u16-10"===t?10*ko(e):"uncommon-u8"===t?po(e):"number"===typeof t?t:null)(e,o);if(null===u)return null;if(u!==this.audioInfo.sampleRate)return null;const d=e.filePos-r,h=po(e);e.skip(-d),e.skip(-1);const f=(e=>{let t=0;for(const i of e){t^=i;for(let e=0;e<8;e++)0!==(128&t)?t=t<<1^7:t<<=1,t&=255}return t})(mo(e,d));return h!==f?null:{num:c,blockSize:l,sampleRate:u}}async advanceReader(){await this.readMetadata(),i(null!==this.lastLoadedPos),i(this.audioInfo);const e=this.lastLoadedPos,t=await this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length});if(!t)return void(this.lastSampleLoaded=!0);const r=this.loadedSamples[this.loadedSamples.length-1],a={blockOffset:r?r.blockOffset+r.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size};this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(a),t.isLastFrame&&(this.lastSampleLoaded=!0)}}class fa{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return i(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return i(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return O}getTimeResolution(){return i(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return i(this.demuxer.audioInfo),0===this.demuxer.audioInfo.totalSamples?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getDisposition(){return{...Se}}async getDecoderConfig(){return i(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}}async getPacket(e,t){if(i(this.demuxer.audioInfo),e<0)return null;const r=await this.demuxer.readingMutex.acquire();try{for(;;){const i=x(this.demuxer.loadedSamples,e,e=>e.blockOffset/this.demuxer.audioInfo.sampleRate);if(-1===i){await this.demuxer.advanceReader();continue}const r=this.demuxer.loadedSamples[i],a=r.blockOffset/this.demuxer.audioInfo.sampleRate;if(!(a+r.blockSize/this.demuxer.audioInfo.sampleRate<=e))return this.getPacketAtIndex(i,t);if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t);await this.demuxer.advanceReader()}}finally{r()}}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=e.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&i>=this.demuxer.loadedSamples.length)return null;for(;i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(i,t)}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}async getPacketAtIndex(e,t){const r=this.demuxer.loadedSamples[e];if(!r)return null;let a;if(t.metadataOnly)a=mi;else{let e=this.demuxer.reader.requestSlice(r.byteOffset,r.byteSize);if(ae(e)&&(e=await e),!e)return null;a=mo(e,r.byteSize)}i(this.demuxer.audioInfo);const s=r.blockOffset/this.demuxer.audioInfo.sampleRate,n=r.blockSize/this.demuxer.audioInfo.sampleRate;return new pi(a,"key",s,n,e,r.byteSize)}async getFirstPacket(e){for(;0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(0,e)}}const ma=9e4,pa=2**33,ga=188,ka="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",ya=new Set([133,134,162]),ba=new Set;class wa extends fi{constructor(e){super(e),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5242880,this.minReferencePointByteDistance=-1,this.timestampWrapInfo=null,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=this.reader.requestSlice(0,205);ae(e)&&(e=await e),i(e);const t=mo(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=ga;else if(71===t[0]&&71===t[204])this.packetOffset=0,this.packetStride=204;else{if(71!==t[4]||71!==t[196])throw new Error("Unreachable.");this.packetOffset=4,this.packetStride=192}this.minReferencePointByteDistance=256*this.packetStride;let r=this.packetOffset,a=null,s=!1,n=!1;for(;;){const e=await this.readPacketHeader(r);if(!e)break;if(0===e.payloadUnitStartIndicator){r+=this.packetStride;continue}if(n&&!this.elementaryStreams.some(t=>t.pid===e.pid)){r+=this.packetStride;continue}const t=await this.readSection(r,!0,!n);if(!t)break;const o=3,c=32;let l=!1;if(!n&&0!==t.pid){if(!(0===t.payload[0]&&0===t.payload[1]&&1===t.payload[2])){const e=new ve(t.payload),i=e.readAlignedByte();e.skipBits(8*i);l=2===e.readBits(8)}}if(0!==t.pid||s)if(t.pid!==a&&!l||n){const e=this.elementaryStreams.find(e=>e.pid===t.pid);e:if(e&&!e.initialized){const r=Sa(this,t,!0);if(!r)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${e.pid}`);if(e.firstSection=t,e.canBeTrustedWithKeyPackets=1===t.randomAccessIndicator,this.input._initInput){const i=(await this.input._initInput._getDemuxer()).elementaryStreams.find(i=>i.pid===t.pid&&i.info.codec===e.info.codec);if(i){e.info=i.info,e.initialized=!0;break e}}const a=new Ca(e,r);if("video"===e.info.type){for(;;){if(a.suppliedPacket=null,await a.markNextPacket(),"avc"===e.info.codec){if(!a.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(e.info.avcCodecInfo=He(a.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];i(t);const r=Xe(t);e.info.width=r.displayWidth,e.info.height=r.displayHeight;const s=r.pixelAspectRatio.num,n=r.pixelAspectRatio.den;s>0&&n>0&&(s>n?(e.info.squarePixelWidth=Math.round(e.info.width*s/n),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*n/s))),e.info.colorSpace={primaries:f[r.colourPrimaries],transfer:p[r.transferCharacteristics],matrix:k[r.matrixCoefficients],fullRange:!!r.fullRangeFlag},e.info.reorderSize=r.maxDecFrameBuffering;break}if("hevc"===e.info.codec){if(!a.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(e.info.hevcCodecInfo=Ze(a.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===Ae.SPS_NUT).nalUnits[0];i(t);const r=Je(t);e.info.width=r.displayWidth,e.info.height=r.displayHeight,r.pixelAspectRatio.num>r.pixelAspectRatio.den?(e.info.squarePixelWidth=Math.round(e.info.width*r.pixelAspectRatio.num/r.pixelAspectRatio.den),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*r.pixelAspectRatio.den/r.pixelAspectRatio.num)),e.info.colorSpace={primaries:f[r.colourPrimaries],transfer:p[r.transferCharacteristics],matrix:k[r.matrixCoefficients],fullRange:!!r.fullRangeFlag},e.info.reorderSize=r.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:Qt({width:e.info.width,height:e.info.height,codec:e.info.codec,codecDescription:null,colorSpace:e.info.colorSpace,avcType:1,avcCodecInfo:e.info.avcCodecInfo,hevcCodecInfo:e.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:e.info.width,codedHeight:e.info.height,colorSpace:e.info.colorSpace},e.info.width===e.info.squarePixelWidth&&e.info.height===e.info.squarePixelHeight||(e.info.decoderConfig.displayAspectWidth=e.info.squarePixelWidth,e.info.decoderConfig.displayAspectHeight=e.info.squarePixelHeight),e.initialized=!0}else{if(await a.markNextPacket(),!a.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${e.pid}`);if("aac"===e.info.codec){const t=ho.tempFromBytes(a.suppliedPacket.data),i=ca(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=Ie[i.channelConfiguration],e.info.sampleRate=Pe[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=To(ho.tempFromBytes(a.suppliedPacket.data)),i=ci(t,a.suppliedPacket.data.byteLength);if(!i.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");e.info.numberOfChannels=hi(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=St(a.suppliedPacket.data);if(!t)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(3===t.fscod)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Tt[t.acmod]+t.lfeon,e.info.sampleRate=Ee[t.fscod]}else if("eac3"===e.info.codec){const t=It(a.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=xt(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Ct(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=Nt(a.suppliedPacket.data);if(!t)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");e.info.numberOfChannels=t.numberOfChannels,e.info.sampleRate=t.sampleRate,t.core&&(e.info.dtsFormat=t.hasExtensions?"dtsh":"dtsc")}}e.info.decoderConfig={codec:Jt({codec:e.info.codec,codecDescription:null,aacCodecInfo:e.info.aacCodecInfo,dtsFormat:e.info.dtsFormat}),numberOfChannels:e.info.numberOfChannels,sampleRate:e.info.sampleRate},e.initialized=!0}}}else{const e=new ve(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(12);const r=e.readBits(12);e.skipBits(43),e.readBits(13),e.skipBits(6);const a=e.readBits(10),s=e.pos+8*a;let l=!1;for(;e.pos=4){const t=e.readBits(32);l||(l=1212435798===t||1212436562===t)}e.pos=r}for(e.pos=s;8*(r+o)-e.pos>c;){const t=e.readBits(8);e.skipBits(3);const i=e.readBits(13);e.skipBits(6);const r=e.readBits(10),a=e.pos+8*r;let s=!1,n=!1,o=!1;for(;e.pos=4){const t=e.readBits(32);o||(o=1146376960===(4294967040&t))}e.pos=r}let c=null;const u=l&&ya.has(t)?130:t;switch(u){case 27:case 36:c={type:"video",codec:27===t?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let e;e=3===u||4===u?"mp3":15===u?"aac":129===u?"ac3":135===u?"eac3":"dts",c={type:"audio",codec:e,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:n?c={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:s?c={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:o&&(c={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:ba.has(t)||(be._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),ba.add(t))}c&&this.elementaryStreams.push({demuxer:this,pid:i,streamType:t,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:c,referencePesPackets:[]})}n=!0}else{const e=new ve(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(14);const r=e.readBits(10);for(e.skipBits(40);8*(r+o)-e.pos>c;){const t=e.readBits(16);e.skipBits(3);const i=e.readBits(13);if(0!==t){if(null!==a)throw new Error("Only files with a single program are supported.");a=i}}if(null===a)throw new Error("Program Association Table must link to a Program Map Table.");s=!0}if(n&&this.elementaryStreams.every(e=>e.initialized))break;r+=this.packetStride}if(!n){if(!s)throw new Error("No Program Association Table found in the file.");throw new Error("No Program Map Table found in the file.")}for(const i of this.elementaryStreams)i.initialized&&("video"===i.info.type?this.trackBackingEntries.push(new Pa(i)):this.trackBackingEntries.push(new Ia(i)))})())}async getTrackBackings(){return await this.readMetadata(),this.trackBackingEntries}async getMetadataTags(){return{}}async getMimeType(){await this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${i.join(", ")}"`),t})(await Promise.all(this.trackBackingEntries.map(e=>e.getDecoderConfig().then(e=>e?.codec??null))))}async readSection(e,t,i=!1){let r=e,a=e;const s=[];let n,o=0,c=null,l=!0,u=0;for(;;){const e=await this.readPacket(a);if(a+=this.packetStride,!e)break;if(c){if(e.pid!==c.pid){if(i)break;continue}if(1===e.payloadUnitStartIndicator)break}else{if(0===e.payloadUnitStartIndicator)break;c=e}const n=!!(2&e.adaptationFieldControl),d=!!(1&e.adaptationFieldControl);let h=0;if(n&&(h=1+e.body[0],e===c&&h>1&&(u=e.body[1]>>6&1)),d&&(0===h?(s.push(e.body),o+=e.body.byteLength):(s.push(e.body.subarray(h)),o+=e.body.byteLength-h)),r=a,!t&&o>=64){l=!1;break}if(-1!==I(this.sectionEndPositions,r,e=>e)){l=!1;break}}if(l){const e=x(this.sectionEndPositions,r,e=>e);this.sectionEndPositions.splice(e+1,0,r)}if(!c)return null;if(1===s.length)n=s[0];else{const e=s.reduce((e,t)=>e+t.length,0);n=new Uint8Array(e);let t=0;for(const i of s)n.set(i,t),t+=i.length}return{startPos:e,endPos:t?r:null,pid:c.pid,payload:n,randomAccessIndicator:u}}async readPacketHeader(e){let t=this.reader.requestSlice(e,4);if(ae(t)&&(t=await t),!t)return null;if(71!==po(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=ko(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:po(t)>>4&3}}async readPacket(e){let t=this.reader.requestSlice(e,ga);if(ae(t)&&(t=await t),!t)return null;const i=mo(t,ga);if(71!==i[0])throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const r=(i[1]<<8)+i[2];return{payloadUnitStartIndicator:r>>14&1,pid:8191&r,adaptationFieldControl:i[3]>>4&3,body:i.subarray(4)}}normalizeTimestamp(e){if(!this.timestampWrapInfo){const t=54e5;this.timestampWrapInfo={reference:e-t,offset:e>=pa-t?-8589934592:pa}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e{if(t.payload.byteLength<3)return null;const r=new ve(t.payload);if(1!==r.readBits(24))return null;const a=r.readBits(8);if(r.skipBits(16),188===a||190===a||191===a||240===a||241===a||255===a||242===a||248===a)return null;r.skipBits(8);const s=r.readBits(2);r.skipBits(14);let n=null;if(2===s||3===s)n=0,r.skipBits(4),n+=r.readBits(3)*(1<<30),r.skipBits(1),n+=32768*r.readBits(15),r.skipBits(1),n+=r.readBits(15),n=e.normalizeTimestamp(n);else if(i)throw new Error(ka);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:n,randomAccessIndicator:t.randomAccessIndicator}},Sa=(e,t,r)=>{i(null!==t.endPos);const a=Ta(e,t,r);if(!a)return null;const s=new ve(t.payload);s.skipBits(32);const n=s.readBits(16);s.skipBits(16);const o=s.readBits(8),c=s.pos+8*o;s.pos=c;const l=c/8;i(Number.isInteger(l));const u=t.payload.subarray(l,n>0?6+n:t.payload.byteLength);return{...a,data:u}};class va{constructor(e){this.elementaryStream=e,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const e=this.elementaryStream.demuxer,t=this.elementaryStream.info.type;let r=0;for(const a of e.trackBackingEntries)if(a.getType()===t&&r++,i(a instanceof va),a.elementaryStream===this.elementaryStream)break;return r}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return O}getDisposition(){return{...Se,primary:!1}}getTimeResolution(){return ma}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}createEncodedPacket(e,t,i){let r;return r=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new pi(i.metadataOnly?mi:e.data,r,e.pts/ma,Math.max(t/ma,0),e.sequenceNumber,e.data.byteLength)}async getFirstPacket(e){const t=this.elementaryStream.firstSection;i(t);const r=Sa(this.elementaryStream.demuxer,t,!0);i(r);const a=new Ca(this.elementaryStream,r),s=new Ba(this,a),n=await s.readNext();if(!n)return null;const o=this.createEncodedPacket(n.packet,n.duration,e);return this.packetBuffers.set(o,s),this.packetSectionStarts.set(o,n.packet.sectionStartPos),o}async getNextPacket(e,t){let r=this.packetBuffers.get(e);if(r){const i=await r.readNext();if(!i)return null;this.packetBuffers.delete(e);const a=this.createEncodedPacket(i.packet,i.duration,t);return this.packetBuffers.set(a,r),this.packetSectionStarts.set(a,i.packet.sectionStartPos),a}const a=this.packetSectionStarts.get(e);if(void 0===a)throw new Error("Packet was not created from this track.");const s=this.elementaryStream.demuxer,n=await s.readSection(a,!0);i(n);const o=Sa(s,n,!0);i(o);const c=new Ca(this.elementaryStream,o);r=new Ba(this,c);const l=e.sequenceNumber;for(;;){const e=await r.readNext();if(!e)return null;if(e.packet.sequenceNumber>l){const i=this.createEncodedPacket(e.packet,e.duration,t);return this.packetBuffers.set(i,r),this.packetSectionStarts.set(i,e.packet.sectionStartPos),i}}}async getNextKeyPacket(e,t){let i=e;for(;;){if(i=await this.getNextPacket(i,t),!i)return null;if("key"===i.type)return i}}getPacket(e,t){return this.doPacketLookup(e,!1,t)}getKeyPacket(e,t){return this.doPacketLookup(e,!0,t)}async doPacketLookup(e,t,r){const s=L(e*ma),n=this.elementaryStream.demuxer,{reader:o,seekChunkSize:c}=n,l=this.elementaryStream.pid,u=async(e,t,i)=>{let r=e;for(;re.pts),g=-1!==p?m[p]:null;if(g&&s-g.pts<45e3)f=g.sectionStartPos;else{let e=0;if(null!==o.fileSize){const t=Math.ceil(o.fileSize/c);if(t>1){let i=0,r=t-1;for(e=i;i<=r;){const t=Math.floor((i+r)/2),a=q(t*c,n.packetStride)+h.sectionStartPos,o=a+c,l=await u(a,o,!1);l?l.pesPacketHeader.pts<=s?(e=t,i=t+1):r=t-1:r=t-1}}}f=q(e*c,n.packetStride)+h.sectionStartPos}const k=await u(f,o.fileSize??1/0,!1);let y=k?.pesPacketHeader??null;y||(y=h);const b=this.getReorderSize(),w=async(e,t)=>{const o=await n.readSection(e,!0);i(o);const c=Sa(n,o,!0);i(c);const l=new Ca(this.elementaryStream,c),u=new Ba(this,l);for(;;){if((a(u.presentationOrderPackets)?.pts??-1/0)>=s)break;if(!(await u.readNextPacket()))break}const d=R(u.presentationOrderPackets,t);if(-1===d)return null;const h=u.presentationOrderPackets[d],f=0===d?0:h.pts-u.presentationOrderPackets[d-1].pts;for(;u.decodeOrderPackets[0]!==h;)u.decodeOrderPackets.shift();u.lastDuration=f;const m=await u.readNext();i(m);const p=this.createEncodedPacket(m.packet,m.duration,r);return this.packetBuffers.set(p,u),this.packetSectionStarts.set(p,m.packet.sectionStartPos),p};if(!t||this.allPacketsAreKeyPackets()){e:for(;;){let e=y.sectionStartPos+n.packetStride;for(;;){const t=await n.readPacketHeader(e);if(!t)break e;if(t.pid===l&&1===t.payloadUnitStartIndicator){const t=await n.readSection(e,!1);if(t){const e=Ta(n,t,!1);if(e&&null!==e.pts){if(e.pts>s)break e;y=e,xa(this.elementaryStream,y);break}}}e+=n.packetStride}}e:for(let e=0;e=n.packetOffset;){const t=await n.readPacketHeader(e);if(!t)break e;if(t.pid===l&&1===t.payloadUnitStartIndicator){const t=await n.readSection(e,!1);if(t){const e=Ta(n,t,!1);if(e&&null!==e.pts){y=e;break}}}e-=n.packetStride}}return w(y.sectionStartPos,e=>e.pts<=s)}{let e=f,t=null;const r=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let a=null;const f=e<=h.sectionStartPos;let m,p=null;if(f)m=h,p=d;else{const t=await u(e,o.fileSize??1/0,r);m=t?.pesPacketHeader??null,p=t?.section??null}let g=!1,k=0;e:for(;m&&!(null!==t&&m.sectionStartPos>=t);){if(m.pts<=s){let e;if(this.elementaryStream.canBeTrustedWithKeyPackets)e=1===m.randomAccessIndicator;else{i(p);const t=Sa(n,p,!0);i(t);const r=new Ca(this.elementaryStream,t);await r.markNextPacket(),e=1===r.suppliedPacket?.randomAccessIndicator}e&&(a=m)}if(m.pts>s&&(g=!0),g&&(k++,k>b))break;let e=m.sectionStartPos+n.packetStride;for(;;){const t=await n.readPacketHeader(e);if(!t)break e;if(t.pid===l&&1===t.payloadUnitStartIndicator){const t=await n.readSection(e,r);if(t){const e=Ta(n,t,!1);if(e&&null!==e.pts){m=e,p=t,xa(this.elementaryStream,m);break}}}e+=n.packetStride}}if(a){let e=a;if(0===k)e:for(let i=0;i=n.packetOffset;){const i=await n.readPacketHeader(t);if(!i)break e;if(i.pid===l&&1===i.payloadUnitStartIndicator){const i=await n.readSection(t,r);if(i){const t=Ta(n,i,!1);if(t&&null!==t.pts){e=t;break}}}t-=n.packetStride}}const t=await w(e.sectionStartPos,e=>e.pts<=s&&1===e.randomAccessIndicator);return i(t),t}if(f)return null;t=e,e=Math.max(q(e-h.sectionStartPos-c,n.packetStride)+h.sectionStartPos,h.sectionStartPos)}}}}class Pa extends va{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}async getColorSpace(){return this.elementaryStream.info.colorSpace}async canBeTransparent(){return!1}async getDecoderConfig(){return i(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class Ia extends va{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}async getDecoderConfig(){return i(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const xa=(e,t)=>{const i=e.referencePesPackets,r=x(i,t.sectionStartPos,e=>e.sectionStartPos);if(r>=0){const a=i[r];if(t.pts<=a.pts)return!1;const s=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-a.sectionStartPos=e?e:this.bufferData(e-t).then(()=>Math.min(this.endPos-this.currentPos,e))}getCurrentPesPacket(){const e=this.pesPackets[this.currentPesPacketIndex];return i(e),e}async bufferData(e){const t=this.endPos+e;for(;this.endPos=u)break;d=e;const i=c+d;if(d+3>=u){this.seekTo(i);break}const h=l[d+1],f=l[d+2],m=l[d+3];let p=0;if(0===h&&0===f&&1===m?p=4:0===h&&1===f&&(p=3),0===p){d++;continue}const g=i;a??(a=g);const k=d+p,y=k+r,b=6;if(y+("avc"===t?b:1)>u){this.seekTo(i);break}const w=l[k];let T,S,v;if("avc"===t)T=Le(w),S=T===Re.NON_IDR_SLICE||T===Re.SLICE_DPA||T===Re.IDR,v=T===Re.SEI||T===Re.SPS||T===Re.PPS||T===Re.AUD;else{T=Ye(w);if(((1&w)<<5|l[k+1]>>3)>0){d+=p;continue}S=T<=Ae.RASL_R||T>=Ae.BLA_W_LP&&T<=21,v=T>=Ae.VPS_NUT&&T<=37||T===Ae.PREFIX_SEI_NUT||T>=41&&T<=44||T>=48&&T<=55}let P=!1;if(S){let e;if("avc"===t){const t=l.subarray(y,y+b),i=s(new ve(t));e=!n||i<=o,o=i}else e=l[y]>>7===1;e&&(n?P=!0:n=!0)}else v&&n&&(P=!0);if(P){const e=g-a;return this.seekTo(a),this.supplyPacket(e,0)}d+=p}if(ea){const e=this.endPos-a;return this.seekTo(a),this.supplyPacket(e,0)}}else{const t=e.info.codec,r=128;for(;;){let a=this.ensureBuffered(r);ae(a)&&(a=await a);const s=this.currentPos;for(;this.currentPos-s>6,o=63&s[4];if(3===n||o>37){this.seekTo(t+1);continue}const c=vt[3*o+n];i(void 0!==c),this.seekTo(t),a=this.ensureBuffered(c),ae(a)&&(a=await a);const l=Math.round(13824e4/e.info.sampleRate);return this.supplyPacket(a,l)}if("eac3"===t){if(11!==r)continue;this.skip(-1);const t=this.currentPos;let i=this.ensureBuffered(5);if(ae(i)&&(i=await i),i<5)return;const a=this.readBytes(5);if(11!==a[0]||119!==a[1]){this.seekTo(t+1);continue}const s=2*(((7&a[2])<<8|a[3])+1),n=3===a[4]>>6?3:a[4]>>4&3,o=Pt[n];this.seekTo(t),i=this.ensureBuffered(s),ae(i)&&(i=await i);const c=256*o,l=Math.round(c*ma/e.info.sampleRate);return this.supplyPacket(i,l)}if("dts"===t){if(127!==r&&100!==r)continue;this.skip(-1);const t=this.currentPos;let i=this.ensureBuffered(18);if(ae(i)&&(i=await i),i<18)return;const a=this.readBytes(18),s=Lt(a);let n=s?null:zt(a);if(!s&&!n){this.seekTo(t+1);continue}if(n&&!n.asset){this.seekTo(t);const e=Math.min(n.frameSize,4096);let i=this.ensureBuffered(e);ae(i)&&(i=await i),n=zt(this.readBytes(i))??n}let o=s?s.frameSize:n.frameSize;if(s){let e=4*Math.ceil(s.frameSize/4);for(;;){this.seekTo(t);const i=e+10;let r=this.ensureBuffered(i);if(ae(r)&&(r=await r),r=0)}async readNext(){if(0===this.decodeOrderPackets.length){if(!(await this.readNextPacket()))return null}await this.ensureCurrentPacketHasNext();const e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e);let r;if(i(-1!==t),t===this.presentationOrderPackets.length-1)r=this.lastDuration;else{r=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=r}for(this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const e=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(e))break;this.presentationOrderPackets.shift()}return{packet:e,duration:r}}async readNextPacket(){if(this.reachedEnd)return!1;let e;return this.context.suppliedPacket||await this.context.markNextPacket(),e=this.context.suppliedPacket,this.context.suppliedPacket=null,e?(this.decodeOrderPackets.push(e),this.processPacketThroughReorderBuffer(e),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)}async ensureCurrentPacketHasNext(){const e=this.decodeOrderPackets[0];for(i(e);;){const t=this.presentationOrderPackets.indexOf(e);if(-1!==t&&t<=this.presentationOrderPackets.length-2)break;if(!(await this.readNextPacket()))break}}processPacketThroughReorderBuffer(e){if(this.reorderBuffer.push(e),this.reorderBuffer.length>this.reorderSize){let e=0;for(let i=1;ie.pts-t.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const Ea="application/vnd.apple.mpegurl",_a="#EXT-X-STREAM-INF:",Ra="#EXT-X-I-FRAME-STREAM-INF:",Fa="#EXT-X-MEDIA:",Aa="#EXTINF:",Da="#EXT-X-MAP:",Ma="#EXT-X-KEY:",Na="#EXT-X-MEDIA-SEQUENCE:",Oa="#EXT-X-BYTERANGE:",La="#EXT-X-PROGRAM-DATE-TIME:",za="#EXT-X-TARGETDURATION:",Ua="#EXT-X-PLAYLIST-TYPE:",qa=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class Wa{constructor(e){this._attributes={};let t="",i="",r=!1,a=!1;for(let s=0;s{const e=[];if(this.trackDeclarations){for(const t of this.trackDeclarations)if("video"===t.type){const i=de(e,e=>"video"===e.getType())+1;e.push(new ja(this,t,i))}else if("audio"===t.type){const i=de(e,e=>"audio"===e.getType())+1;e.push(new Ka(this,t,i))}}else{if(this.firstSegment=await this.getFirstSegment({}),!this.firstSegment)return[];const t=this.getInputForSegment(this.firstSegment),i=await t.getTracks();for(const r of i)if("video"===r.type){const t=de(e,e=>"video"===e.getType())+1;e.push(new ja(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=de(e,e=>"audio"===e.getType())+1;e.push(new Ka(this,{id:e.length+1,type:"audio"},t))}}return e})())}async getFirstTimestampForInput(e){const t=this.firstTimestampCache.get(e);if(void 0!==t)return t;const i=await e.getFirstTimestamp();return this.firstTimestampCache.set(e,i),i}async getMediaOffset(e,t){const i=e.firstSegment??e;let r;if(this.firstSegmentFirstTimestamps.has(i))r=this.firstSegmentFirstTimestamps.get(i);else{const e=this.getInputForSegment(i);r=await this.getFirstTimestampForInput(e),this.firstSegmentFirstTimestamps.set(i,r)}if(i===e)return i.timestamp-r;const a=await this.getFirstTimestampForInput(t),s=e.timestamp-i.timestamp,n=a-r-s;return Math.abs(n)<=Math.min(.25,s)?i.timestamp-r:e.timestamp-a}dispose(){for(const e of this.inputCache)e.input.dispose();this.inputCache.length=0}}class Va{constructor(e,t,i){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.firstSegment=null,this.segmentedInput=e,this.decl=t,this.number=i}hydrate(){return this.hydrationPromise??(this.hydrationPromise=(async()=>{var e;if((e=this.segmentedInput).firstSegment??(e.firstSegment=await this.segmentedInput.getFirstSegment({})),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let t=this.segmentedInput.firstSegment,i=null;for(;t;){const e=this.segmentedInput.getInputForSegment(t);if(i=(await e.getTracks()).find(e=>e.type===this.decl.type&&e.number===this.number)??null,i)break;t=await this.segmentedInput.getNextSegment(t,{})}if(!i)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=i,this.firstSegment=t})())}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(e){return this.firstInputTrack?e():this.hydrate().then(e)}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}getHasOnlyKeyPackets(){return this.delegate(()=>this.firstInputTrack._backing.getHasOnlyKeyPackets?.()??null)}getPairingMask(){return 1n}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}async isRelativeToUnixEpoch(){return await this.hydrate(),i(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp}getUnixTimeForTimestamp(e){return this.segmentedInput.getUnixTimeForTimestamp(e)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(e){return this.segmentedInput.getDurationFromMetadata(e)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}async createAdjustedPacket(e,t,r){i(e.sequenceNumber>=0),i(this.segmentedInput.firstSegment);const a=await this.segmentedInput.getMediaOffset(t,r.input),s=t.timestamp-this.segmentedInput.firstSegment.timestamp,n=e.clone({timestamp:U(e.timestamp+a,await r.getTimeResolution()),sequenceNumber:Math.floor(1e8*s)+e.sequenceNumber});return this.packetInfos.set(n,{segment:t,track:r,sourcePacket:e}),n}async getFirstPacket(e){await this.hydrate(),i(this.firstInputTrack),i(this.firstSegment);let t=this.firstInputTrack,r=this.firstSegment;for(;;){if(t){const i=await t._backing.getFirstPacket(e);if(i)return this.createAdjustedPacket(i,r,t)}if(r=await this.segmentedInput.getNextSegment(r,{skipLiveWait:e.skipLiveWait}),!r)break;const i=this.segmentedInput.getInputForSegment(r);t=(await i.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number)??null}return null}getNextPacket(e,t){return this._getNextInternal(e,t,!1)}getNextKeyPacket(e,t){return this._getNextInternal(e,t,!0)}async _getNextInternal(e,t,i){const r=this.packetInfos.get(e);if(!r)throw new Error("Packet was not created from this track.");const a=i?await r.track._backing.getNextKeyPacket(r.sourcePacket,t):await r.track._backing.getNextPacket(r.sourcePacket,t);if(a)return this.createAdjustedPacket(a,r.segment,r.track);let s=r.segment;for(;;){const e=await this.segmentedInput.getNextSegment(s,{skipLiveWait:t.skipLiveWait});if(!e)return null;const i=this.segmentedInput.getInputForSegment(e),a=(await i.getTracks()).find(e=>e.type===r.track.type&&e.number===r.track.number);if(!a){s=e;continue}const n=await a._backing.getFirstPacket(t);return n?this.createAdjustedPacket(n,e,a):null}}getPacket(e,t){return this._getPacketInternal(e,t,!1)}getKeyPacket(e,t){return this._getPacketInternal(e,t,!0)}async _getPacketInternal(e,t,i){let r=await this.segmentedInput.getSegmentAt(e,{skipLiveWait:t.skipLiveWait});if(!r)return null;for(await this.hydrate();r;){const a=this.segmentedInput.getInputForSegment(r),s=(await a.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number);if(!s){r=await this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait});continue}const n=e-await this.segmentedInput.getMediaOffset(r,a),o=i?await s._backing.getKeyPacket(n,t):await s._backing.getPacket(n,t);if(o)return this.createAdjustedPacket(o,r,s);r=await this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait})}return null}}class ja extends Va{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}async getColorSpace(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())}async canBeTransparent(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}class Ka extends Va{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}ce();const Xa=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class $a extends ge{constructor(){super(),this._disposed=!1,this._refCount=0,this._usedForHls=!1,this._refFinalizationRegistry=null,this._sizePromise=null,this.onread=null,"undefined"!==typeof FinalizationRegistry&&(this._refFinalizationRegistry=new FinalizationRegistry(e=>{e._decrementRefCount()}))}async getSizeOrNull(){if(this._disposed)throw new lo;return this._sizePromise??(this._sizePromise=(async()=>{let e=this._getFileSize();return void 0!==e||(await this._read(0,1,0,Xa),e=this._getFileSize(),i(void 0!==e)),e})())}async getSize(){if(this._disposed)throw new lo;const e=await this.getSizeOrNull();if(null===e)throw new Error("Cannot determine the size of an unsized source.");return e}slice(e,t){if(!Number.isInteger(e)||e<0)throw new TypeError("offset must be a non-negative integer.");if(void 0!==t&&(!Number.isInteger(t)||t<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new ls(this,e,t)}_dispatchRead(e,t){this.onread?.(e,t),this._emit("read",{start:e,end:t})}ref(){return new Ga(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class Ga{constructor(e){if(this._freed=!1,e._disposed)throw new Error("Cannot ref a disposed source.");e._incrementRefCount(),e._refFinalizationRegistry?.register(this,e,this),this._source=e}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const e=this.source;i(e._refCount>0),e._decrementRefCount(),e._refFinalizationRegistry?.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class Qa extends $a{constructor(e,t){if("string"!==typeof e)throw new TypeError("rootPath must be a string.");if("function"!==typeof t)throw new TypeError("requestHandler must be a function.");super(),this.rootPath=e,this.requestHandler=t}_resolveRequest(e){const t=this.requestHandler(e),i=e=>{var t;if(!(e instanceof $a||e instanceof Ga))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof $a?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return ae(t)?t.then(i):i(t)}}const Ya=(e,t)=>e.path===t.path;class Ja extends Qa{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(e,t,r,a){if(!this._root){if(!this._rootRequest){const e=this._resolveRequest({path:this.rootPath,isRoot:!0}),t=e=>{const t=e instanceof $a?e.ref():e;return this._root=t,this._rootRequest=null,t};ae(e)?this._rootRequest=e.then(t):(t(e),i(this._root))}if(this._rootRequest)return this._rootRequest.then(i=>i.source._read(e,t,r,a))}return this._root.source._read(e,t,r,a)}_getFileSize(){if(this._root)return this._root.source._getFileSize()}_dispose(){this._root?this._root.free():this._rootRequest&&this._rootRequest.then(e=>e.free())}}const Za="undefined"!==typeof FinalizationRegistry?new FinalizationRegistry(e=>{e.cancel().catch(()=>{})}):null;class es extends $a{constructor(e,t={}){if(!(e instanceof Blob))throw new TypeError("blob must be a Blob.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.maxCacheSize&&(!le(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.useStreamReader&&"boolean"!==typeof t.useStreamReader)throw new TypeError("options.useStreamReader, when provided, must be a boolean.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(),this._readers=new WeakMap,this._blob=e,this._options=t,this._orchestrator=new cs({maxCacheSize:t.maxCacheSize??8388608,maxWorkerCount:4,runWorker:this._runWorker.bind(this),onIdleWorkerRemoved:e=>{const t=this._readers.get(e);t&&(this._readers.delete(e),Za?.unregister(e),t.cancel().catch(()=>{}))},prefetchProfile:os.fileSystem,handleUnhandledError:t.handleUnhandledError}),this._orchestrator.fileSize=e.size}_getFileSize(){return this._orchestrator.fileSize}_read(e,t,i,r){return this._orchestrator.read(e,t,i,r)}async _runWorker(e){i(e.strictTarget);let t=this._readers.get(e);if(void 0===t){if("stream"in this._blob&&!Y()&&!1!==this._options.useStreamReader){t=this._blob.slice(e.currentPos).stream().getReader(),Za?.register(e,t,e)}else t=null;this._readers.set(e,t)}for(;e.currentPos{if(t instanceof Error&&(t.message.includes("Failed to fetch")||t.message.includes("Load failed")||t.message.includes("NetworkError when attempting to fetch resource"))&&"undefined"!==typeof window){let e=null;try{"undefined"!==typeof window&&"undefined"!==typeof window.location&&(e=new URL(i instanceof Request?i.url:i,window.location.href).origin)}catch{}if(("undefined"===typeof navigator||"boolean"!==typeof navigator.onLine||navigator.onLine)&&null!==e&&e!==window.location.origin)return be._warn("Request will not be retried because a CORS error was suspected due to different origins. You can modify this behavior by providing your own function for the 'getRetryDelay' option."),null}return Math.min(2**(e-2),16)},is=new Set;class rs extends Qa{constructor(e,t={}){if("string"!==typeof e&&!(e instanceof URL)&&!("undefined"!==typeof Request&&e instanceof Request))throw new TypeError("url must be a string, URL or Request.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.requestInit&&(!t.requestInit||"object"!==typeof t.requestInit))throw new TypeError("options.requestInit, when provided, must be an object.");if(void 0!==t.getRetryDelay&&"function"!==typeof t.getRetryDelay)throw new TypeError("options.getRetryDelay, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!le(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.parallelism&&(!Number.isInteger(t.parallelism)||t.parallelism<1))throw new TypeError("options.parallelism, when provided, must be a positive number.");if(void 0!==t.fetchFn&&"function"!==typeof t.fetchFn)throw new TypeError("options.fetchFn, when provided, must be a function.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(e instanceof Request?e.url:e instanceof URL?e.href:e,e=>new rs(e.path,this._options)),this._offset=0,this._length=null,this._fileSizeDetermined=!1,this._sequentialBacking=null,this._url=e,this._options=t,this._getRetryDelay=t.getRetryDelay??ts,this._requestInit={...t.requestInit};let i=null;if(t.requestInit?.headers){const e={...X(t.requestInit.headers)},r=Object.keys(e).find(e=>"range"===e.toLowerCase());void 0!==r&&(i=e[r],delete e[r],this._requestInit.headers=e)}if(e instanceof Request){const t=e.headers.get("Range");if(null!==t){i??(i=t);const r=new Request(e);r.headers.delete("Range"),this._url=r}}if(null!==i){const e=ss(i);e&&(this._offset=e.offset,this._length=e.length)}this._orchestrator=new cs({maxCacheSize:t.maxCacheSize??67108864,maxWorkerCount:t.parallelism??2,runWorker:this._runWorker.bind(this),prefetchProfile:os.network,handleUnhandledError:t.handleUnhandledError})}_getFileSize(){if(!this._fileSizeDetermined)return null!==this._length?this._length:void 0;const e=this._sequentialBacking?this._sequentialBacking._endIndex:this._orchestrator.fileSize;return null===e?null!==this._length?this._length:null:N(e-this._offset,0,this._length??1/0)}_read(e,t,i,r){if(null!==this._length&&t>this._length)return null;const a=this._offset,s=this._sequentialBacking?this._sequentialBacking._read(a+e,a+t):this._orchestrator.read(a+e,a+t,Math.max(a+i,a),a+Math.min(r,this._length??1/0)),n=e=>e?(e.offset-=this._offset,e):null;return ae(s)?s.then(n):n(s)}async _runWorker(e){for(;;){const i=new AbortController,r=await $(this._options.fetchFn??fetch,this._url,K(this._requestInit,{headers:{Range:`bytes=${e.currentPos}-`},signal:i.signal}),this._getRetryDelay,()=>this._disposed);if(!r.ok)throw new Error(`Error fetching ${String(this._url)}: ${r.status} ${r.statusText}`);r.redirected&&(this.rootPath=r.url);e:if(null===this._orchestrator.fileSize&&(206===r.status||"basic"===r.type&&!r.headers.has("Content-Encoding"))){const t=r.headers.get("Content-Range");if(t){const e=/\/(\d+)/.exec(t);if(e){this._orchestrator.supplyFileSize(Number(e[1]));break e}}const i=r.headers.get("Content-Length");if(i){const t=206===r.status?e.currentPos:0;this._orchestrator.supplyFileSize(t+Number(i))}}if(this._fileSizeDetermined=!0,!r.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");if(206!==r.status){if(this._sequentialBacking)return void r.body.cancel();if(!this._usedForHls){const e=new URL(this._url instanceof Request?this._url.url:this._url,"undefined"!==typeof window?window.location.href:void 0);"null"===e.origin||e.pathname.endsWith(".m3u8")||e.pathname.endsWith(".m3u")||is.has(e.origin)||(be._warn(`HTTP server (origin ${e.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. Alternatively, set maxCacheSize to Infinity in the UrlSource options to keep the entire resource in memory.`),is.add(e.origin))}return void this._transitionToSequentialMode(r.body)}const a=r.body.getReader();for(;;){if(e.currentPos>=e.targetPos||e.aborted)return i.abort(),void this._orchestrator.signalWorkerStoppedRunning(e);let r;try{r=await a.read()}catch(t){if(this._disposed)throw t;const e=this._getRetryDelay(1,t,this._url);if(null!==e){be._error("Error while reading response stream. Attempting to resume.",t),await pe(1e3*e);break}throw t}if(e.aborted)continue;const{done:s,value:n}=r;if(s){if(e.currentPos>=e.targetPos)return void this._orchestrator.onWorkerFinished(e);if(e.strictTarget)break;return void this._orchestrator.onWorkerFinished(e)}this._dispatchRead(e.currentPos,e.currentPos+n.length),this._orchestrator.supplyWorkerData(e,n)}}}_transitionToSequentialMode(e){let t=e.getReader(),r=0,a=0;const s=new ReadableStream({pull:async e=>{for(;;){let s;try{s=await t.read()}catch(i){if(this._disposed)throw i;const e=this._getRetryDelay(1,i,this._url);if(null===e)throw i;be._error("Error while reading response stream. Attempting to resume.",i),await pe(1e3*e);const s=await $(this._options.fetchFn??fetch,this._url,K(this._requestInit,{headers:{Range:`bytes=${r}-`}}),this._getRetryDelay,()=>this._disposed);if(!s.ok)throw new Error(`Error fetching ${String(this._url)}: ${s.status} ${s.statusText}`);if(!s.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");t=s.body.getReader(),a=206===s.status?0:r;continue}if(s.done)return void e.close();let n=s.value;if(a>0){const e=Math.min(a,n.length);a-=e,n=n.subarray(e)}if(0!==n.length)return r+=n.length,void e.enqueue(n)}},cancel:()=>t.cancel()}),n=new ns(s,{maxCacheSize:this._orchestrator.options.maxCacheSize,handleUnhandledError:this._options.handleUnhandledError});n._endIndex=this._orchestrator.fileSize,n._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. Because the HTTP server did not honor the range request, data can only be read sequentially, with old data being evicted from the cache. To fix this issue, either ensure your server responds to range requests with 206 Partial Content, or set maxCacheSize to Infinity in the UrlSource options. Note that the latter will store the entire file in the cache if needed, no matter how large.",n.on("read",({start:e,end:t})=>this._dispatchRead(e,t)),this._sequentialBacking=n;const o=new Set;for(const i of this._orchestrator.workers){for(const e of i.pendingSlices)o.add(e);i.aborted=!0,i.pendingSlices.length=0}for(const i of this._orchestrator.queuedReads)for(const e of i.pendingSlices)o.add(e);this._orchestrator.workers.length=0,this._orchestrator.queuedReads.length=0;for(const c of o){const e=n._read(c.start,c.start+c.bytes.length);ae(e)?e.then(e=>{e?(i(e.offset===c.start),c.resolve(e.bytes)):c.resolve(null)},e=>c.reject(e)):(i(null===e),c.resolve(null))}}_dispose(){this._orchestrator.dispose(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}}const as=/^bytes=(\d+)-(\d*)$/,ss=e=>{const t=as.exec(e.trim());if(!t)return null;const i=Number(t[1]),r=""===t[2]?null:Number(t[2]);return null!==r&&rthis._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);const i=x(this._cache,e,e=>e.start),r=-1!==i?this._cache[i]:null;if(r&&r.start<=e&&t<=r.end)return{bytes:r.bytes,view:r.view,offset:r.start};let a=e;const s=new Uint8Array(t-e);if(-1!==i)for(let l=i;l=t)break;const r=Math.max(e,i.start);r>a&&this._throwDueToCacheMiss();const n=Math.min(t,i.end);ra&&this._throwDueToCacheMiss();const{promise:n,resolve:o,reject:c}=B();return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:o,reject:c}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(e=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(t=>t.reject(e)),this._pendingSlices.length=0;else{if(!this._handleUnhandledError)throw e;this._handleUnhandledError(e)}})),n}_throwDueToCacheMiss(){throw new Error(this._cacheMissErrorMessage)}async _pull(){for(this._reader??(this._reader=this._stream.getReader());this._currentIndex0;){const e=this._cache[0];if(this._maxRequestedIndex-e.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=t.byteLength}this._pulling=!1}_dispose(){for(const e of this._pendingSlices)e.reject(new lo);this._pendingSlices.length=0,this._cache.length=0,this._reader?.cancel()}}const os={fileSystem:(e,t)=>{const i=65536;return{start:e=Math.floor((e-i)/i)*i,end:t=Math.ceil((t+i)/i)*i}},network:(e,t,i)=>{const r=65536;e=Math.max(0,Math.floor((e-r)/r)*r);for(const a of i){const i=8388608,r=Math.max((a.startPos+a.targetPos)/2,a.targetPos-i);if(ne(e,t,r,a.targetPos)){const e=a.targetPos-a.startPos,r=Math.ceil((e+1)/i)*i,s=2**Math.ceil(Math.log2(e+1)),n=Math.min(s,r);t=Math.max(t,a.startPos+n)}}return{start:e,end:t=Math.max(t,e+524288)}}};class cs{constructor(e){this.options=e,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(e,t,r,a){i(!this.disposed);const s=this.options.prefetchProfile(e,t,this.workers),n=Math.max(s.start,r),o=Math.min(s.end,this.fileSize??1/0,a);i(n<=e&&t<=o);let c=null;const u=x(this.cache,e,e=>e.start),d=-1!==u?this.cache[u]:null;d&&d.start<=e&&t<=d.end&&(d.age=this.nextAge++,c={bytes:d.bytes,view:d.view,offset:d.start});const h=x(this.cache,n,e=>e.start),f=c?null:new Uint8Array(t-e);let m=0,p=n;const g=[];if(-1!==h){for(let r=h;r=o)break;if(a.end<=n)continue;const s=Math.max(n,a.start),c=Math.min(o,a.end);if(i(s<=c),p=f.length&&(c={bytes:f,view:l(f),offset:e}),0===g.length)return i(c),c;const{promise:k,resolve:y,reject:b}=B(),w=[];for(const i of g){const r=Math.max(e,i.start),a=Math.min(t,i.end);r===i.start&&a===i.end?w.push(i):re.hole.start),r=-1!==t?this.queuedReads[t]:null;for(r&&i.start<=r.hole.end?(r.hole.end=Math.max(r.hole.end,i.end),r.strictTarget&&(r.strictTarget=e),T&&r.pendingSlices.push(T)):(t++,r={hole:{start:i.start,end:i.end},strictTarget:e,pendingSlices:T?[T]:[],age:this.nextAge++},this.queuedReads.splice(t,0,r));t+1r.hole.end)break;r.hole.end=Math.max(r.hole.end,e.hole.end),r.pendingSlices.push(...e.pendingSlices),r.strictTarget&&(r.strictTarget=e.strictTarget),r.age=Math.min(r.age,e.age),this.queuedReads.splice(t+1,1)}}}return c?k.catch(e=>{if(!this.disposed){if(!this.options.handleUnhandledError)throw e;this.options.handleUnhandledError(e)}}):(i(f),c=k.then(t=>t&&{bytes:t,view:l(t),offset:e})),c}checkHoleAgainstWorker(e,t,i){if(ne(t.start-2**17,t.start,e.currentPos,e.targetPos)){e.targetPos=Math.max(e.targetPos,t.end);for(let t=0;t=this.options.maxWorkerCount){let e=null,t=null;for(let i=0;i{if(e.running=!1,e.pendingSlices.length>0)e.pendingSlices.forEach(e=>e.reject(t)),e.pendingSlices.length=0;else if(!e.aborted&&!this.disposed){if(!this.options.handleUnhandledError)throw t;this.options.handleUnhandledError(t)}}).finally(()=>{if(!e.running&&this.queuedReads.length>0){let e=0;for(let r=1;re.targetPos&&(e.targetPos=e.currentPos,this.checkQueuedReadsAgainstWorker(e));for(let i=0;it.start&&(t.start=a),t.end<=t.start&&(s.holes.splice(e,1),e--)}0===s.holes.length&&(s.resolve(s.bytes),e.pendingSlices.splice(i,1),i--)}for(let i=0;ie){r.resolve(null),t.pendingSlices.splice(i,1),i--;break}}}for(let t=0;t=e){for(const e of i.pendingSlices)e.resolve(null);this.queuedReads.splice(t,1),t--}else if(i.hole.end>e){i.hole.end=e,i.strictTarget=!0;for(let t=0;t=e&&(r.resolve(null),i.pendingSlices.splice(t,1),t--)}}}}signalWorkerStoppedRunning(e){e.running=!1,e.aborted||(e.pendingSlices.length=0)}onWorkerFinished(e){const t=this.workers.indexOf(e);i(-1!==t),e.running=!1,this.workers.splice(t,1),this.options.onIdleWorkerRemoved?.(e),null===this.fileSize&&this.supplyFileSize(e.currentPos);for(const i of e.pendingSlices)i.resolve(null)}insertIntoCache(e){if(0===this.options.maxCacheSize)return;let t=x(this.cache,e.start,e=>e.start)+1;if(t>0){const i=this.cache[t-1];if(i.end>=e.end)return;if(i.end>e.start){const r=new Uint8Array(e.end-i.start);r.set(i.bytes,0),r.set(e.bytes,e.start-i.start),this.currentCacheSize+=e.end-i.end,i.bytes=r,i.view=l(r),i.end=e.end,t--,e=i}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length;for(let i=t+1;i=t.end){this.cache.splice(i,1),this.currentCacheSize-=t.bytes.length,i--;continue}const r=new Uint8Array(t.end-e.start);r.set(e.bytes,0),r.set(t.bytes,t.start-e.start),this.currentCacheSize-=e.end-t.start,e.bytes=r,e.view=l(r),e.end=t.end,this.cache.splice(i,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let e=0,t=this.cache[0];for(let i=1;ithis._length)return null;const a=this._baseSource._read(this._offset+e,this._offset+t,this._offset+i,this._offset+r),s=e=>e?(e.offset-=this._offset,e):null;return ae(a)?a.then(s):s(a)}_dispose(){this._ref?.free()}ref(){return this._ref??(this._ref=this._baseSource.ref()),super.ref()}}var us=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,a;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(a=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");a&&(r=function(){try{a.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t},ds=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,a=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===a)return a=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return a|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else a|=1}catch(n){i(n)}if(1===a)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});const hs=/^0[xX][0-9a-fA-F]+$/,fs=/^data:.*;base64,/i;class ms extends Ha{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){return this.currentUpdateSegmentsPromise??(this.currentUpdateSegmentsPromise=(async()=>{try{const e=this.getRemainingWaitTimeMs();e>0&&await pe(e),this.lastSegmentUpdateTime=performance.now(),await this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}})())}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}async updateSegments(){let e=this.nextLines;if(this.nextLines=null,!e){const t={stack:[],error:void 0,hasError:!1};try{const r=us(t,await this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),a=new uo(r.source),s=await a.requestEntireFile();i(s),e=Ro(s,s.length,{ignore:qa}),r.source instanceof Qa&&(this.rootPath=r.source.rootPath)}catch(T){t.error=T,t.hasError=!0}finally{ds(t)}}const t=!1!==this.input._formatOptions.hls?.offsetTimestampsByDateTime;let r=!1,s=0,n=null,o=null,c=null,u=0,d=null,h=null,f=null,m=null,p=null,g=null,k=!1,y=a(this.segments)??null;const b=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${e}'.`);let r=null;if(-1!==t&&(r=Number(e.slice(t+1)),!Number.isInteger(r)||r<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${e}'.`);return{length:i,offset:r}},w=e=>{u=e,y&&(i(null!==y.sequenceNumber),y.sequenceNumber0&&null!==g&&(s=u*g),k=!0);const e=T.slice(8),t=e.indexOf(","),i=-1===t?e:e.slice(0,t),r=Number(i);if(!Number.isFinite(r)||r<0)throw new Error(`Invalid #EXTINF tag duration '${i}'.`);o=r}else if(T.startsWith(Da)){const e=new Wa(T.slice(11)),t=e.get("uri");if(!t)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const i=e.get("byterange");let r=null;if(null!==i&&(r=b(i)),r&&null===r.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!y){const e={path:ue(this.rootPath,t),offset:r?.offset??0,length:r?.length??null};if("AES-128"===c?.method&&!c.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");h={timestamp:s,unixEpochTimestamp:n,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:c,initSegment:null,lastProgramDateTimeSeconds:p}}o=null,null===m?f=null:m=null}else if(T.startsWith(Ma)){const e=new Wa(T.slice(11)),t=e.get("method");if("NONE"===t)c=null;else if("AES-128"===t){const t=e.get("uri");if(!t)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let i=null;const r=e.get("iv");if(r){if(!hs.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(Pi);for(let t=0;t=8&&112===t[4]&&115===t[5]&&115===t[6]&&104===t[7]){const e=l(t).getUint32(0);r=gi(t.subarray(8,Math.min(e,t.length)))}}c={method:t,psshBox:r}}}}else if(T.startsWith(Na)){const e=T.slice(22),t=Number(e);if(!Number.isInteger(t)||t<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${e}'.`);w(t)}else if(T.startsWith(Oa)){const e=b(T.slice(17));if(null===e.offset){if(null===f)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");e.offset=f}m=e,f=e.offset+e.length}else if(T.startsWith(La)){if(y)continue;const e=T.slice(25),i=Date.parse(e);if(!Number.isFinite(i))continue;const r=i/1e3;if(p===r)continue;if(null===p&&this.segments.length>0){const e=a(this.segments),i=r-(e.timestamp+e.duration);for(const r of this.segments)r.unixEpochTimestamp=r.timestamp+i,t&&(r.timestamp=r.unixEpochTimestamp)}p=r,n=r,t&&(s=r)}else if("#EXT-X-DISCONTINUITY"===T)d=null;else if(T.startsWith(za)){const e=T.slice(22),t=Number(e);if(!Number.isFinite(t)||t<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${e}'.`);this.refreshInterval=t,g=t}else{if("#EXT-X-ENDLIST"===T){this.streamHasEnded=!0;break}if(T.startsWith(Ua)){"vod"===T.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==T)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");r=!0}}if(!r)throw new Error("Invalid M3U8 file; no #EXTM3U header.")}async getFirstSegment(){return 0===this.segments.length&&await this.runUpdateSegments(),this.segments[0]??null}async getSegmentAt(e,t){0===this.segments.length&&await this.runUpdateSegments();let i=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const r=x(this.segments,e,e=>e.timestamp);if(-1===r)return null;if(r0;for(;;){if(ae.segment===t);if(r)return r.age=this.nextInputCacheAge++,r.input;let a=null;(t.initSegment||t.firstSegment)&&(a=this.getInputForSegment(t.initSegment??t.firstSegment));const s={...this.input._formatOptions,isobmff:{...this.input._formatOptions.isobmff,resolveKeyId:this.input._formatOptions.isobmff?.resolveKeyId&&(e=>{if(!t.encryption||"SAMPLE-AES"!==t.encryption.method&&"SAMPLE-AES-CTR"!==t.encryption.method||!t.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(e);let i=e.psshBoxes;const{psshBox:r}=t.encryption;return null!==r.keyIds&&!r.keyIds.includes(e.keyId)||i.some(e=>ki(e,r))||(i=[...i,r]),this.input._formatOptions.isobmff.resolveKeyId({...e,psshBoxes:i})})}},n=new oo({source:new Ja(t.location.path,async e=>{i(e.isRoot);const r={...e,isRoot:!1};let a;const s=t.location.offset>0||null!==t.location.length;if(t.encryption&&"SAMPLE-AES"!==t.encryption.method&&"SAMPLE-AES-CTR"!==t.encryption.method)if("AES-128"===t.encryption.method){const e=t.encryption;i(e.iv);let n=await this.input._getSourceCached(r);if(s){const e=n.source.slice(t.location.offset,t.location.length??void 0).ref();n.free(),n=e}const o=((e,t,i)=>{let r=!1,a=0;const s=new Ai;return new ReadableStream({pull:async n=>{r||(s.init(await t()),r=!0);let o=e.requestSliceRange(a,0,65552);if(ae(o)&&(o=await o),!o||0===o.length)throw new Error("Invalid ciphertext.");const c=o.length;if(c%16!==0)throw new Error("Invalid ciphertext.");const l=65552===c?c-16:c,u=mo(o,l),d=new Uint8Array(l);for(let e=0;e16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const t=d.subarray(0,l-e);n.enqueue(t),n.close(),i()}},cancel:()=>{i()}})})(new uo(n.source),async()=>{const t={stack:[],error:void 0,hasError:!1};try{const i=us(t,await this.input._getSourceCached({path:e.keyUri,isRoot:!1},no),!1),r=new uo(i.source),a=await r.requestSlice(0,Pi);if(!a)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:mo(a,Pi),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{ds(t)}},()=>{n.free()});a=new ns(o).ref()}else i(!1);else if(a=await this.input._getSourceCached(r),s){const e=a.source.slice(t.location.offset,t.location.length??void 0).ref();a.free(),a=e}return a}),formats:this.input._formats.filter(e=>!(e instanceof Ds)),initInput:a??void 0,formatOptions:s});n._onFormatDetermined=e=>{if(("SAMPLE-AES"===t.encryption?.method||"SAMPLE-AES-CTR"===t.encryption?.method)&&!e._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:t,input:n,age:this.nextInputCacheAge++});if(this.inputCache.length>4){const e=he(this.inputCache,e=>e.age);i(-1!==e),this.inputCache.splice(e,1)}return n}async getLiveRefreshInterval(){return 0===this.getRemainingWaitTimeMs()&&await this.runUpdateSegments(),this.streamHasEnded?null:this.refreshInterval}}class ps extends fi{constructor(e){super(e),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{i(this.input._rootSource instanceof Qa);const e=await this.input._reader.requestEntireFile();i(e);const t=Ro(e,e.length,{ignore:qa}),{rootPath:r}=this.input._rootSource,a=[],s=[];for(let i=1;i"video"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],o=[...new Set(s.filter(e=>"audio"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],c=await Promise.all(a.map(async(e,t)=>{const a=[],c=e.attributes.get("codecs");let l;if(c)l=c.split(",").map(e=>e.trim());else{const t=this.getSegmentedInputForPath(e.fullPath),i=await t.getTrackBackings(),r=await Promise.all(i.map(async e=>({track:e,codec:await e.getCodec()})));l=await Promise.all(r.filter(e=>null!==e.codec).map(e=>e.track.getDecoderConfig().then(e=>e.codec)))}const u=e.attributes.get("video"),d=e.attributes.get("audio"),h=l.some(e=>qt.includes(ii(e))),f=l.some(e=>Ht.includes(ii(e)));if(null!==u&&!h){if(!n.includes(u))throw new Error(`Invalid M3U8 file; variant stream references video group "${u}" which is not defined in any #EXT-X-MEDIA tags.`);const e=s.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===u&&"video"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const a=ue(r,t),s=this.getSegmentedInputForPath(a),n=(await s.getTrackBackings()).find(e=>"video"===e.getType());if(!n||null===await n.getCodec())break e;const o=await n.getDecoderConfig().then(e=>e?.codec??null);i(null!==o),l.push(o)}}if(null!==d&&!f){if(!o.includes(d))throw new Error(`Invalid M3U8 file; variant stream references audio group "${d}" which is not defined in any #EXT-X-MEDIA tags.`);const e=s.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===d&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const a=ue(r,t),s=this.getSegmentedInputForPath(a),n=(await s.getTrackBackings()).find(e=>"audio"===e.getType());if(!n||null===await n.getCodec())break e;const o=await n.getDecoderConfig().then(e=>e?.codec??null);i(null!==o),l.push(o)}}l=[...new Set(l)];let m=null,p=null;const g=e.attributes.getAsNumber("bandwidth");i(null!==g);const k=e.attributes.getAsNumber("average-bandwidth"),y=e.attributes.get("name");for(const i of l){const r=ii(i);if(null!==r)if(qt.includes(r)){if(null!==m)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");m=i;const r=e.attributes.get("video");if(null===r){const i=e.attributes.get("resolution");let r=null,s=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(r=Number(e[1]),s=Number(e[2]))}a.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:O,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:m,pairingMask:1n<0?r:null}})}else{if(!o.includes(r))throw new Error(`Invalid M3U8 file; variant stream references audio group "${r}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of s){const s=i.attributes.get("group-id"),n=i.attributes.get("type");if(s!==r||"audio"!==n.toLowerCase())continue;const o=i.attributes.get("channels")??e.attributes.get("channels"),c=null!==o?Number(o.split("/")[0]):null;a.push({id:-1,demuxer:this,backingTrack:null,default:bs(i.attributes),autoselect:bs(i.attributes)||ws(i.attributes),languageCode:Ts(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:i.fullPath??e.fullPath,fullCodecString:p,pairingMask:1n<0?c:null}})}}}}return a})),l=[],u=e=>{const t=l.find(t=>t.fullPath===e.fullPath&&t.info.type===e.info.type);t?(t.pairingMask|=e.pairingMask,t.default||(t.default=e.default),t.autoselect||(t.autoselect=e.autoselect),t.lineNumber=Math.min(t.lineNumber,e.lineNumber),null!==e.peakBitrate&&(t.peakBitrate=Math.max(t.peakBitrate??-1/0,e.peakBitrate)),null!==e.averageBitrate&&(t.averageBitrate=Math.max(t.averageBitrate??-1/0,e.averageBitrate)),t.languageCode===O&&(t.languageCode=e.languageCode)):(e.id=l.length+1,l.push(e))};for(const i of c)for(const e of i)u(e);l.sort((e,t)=>e.lineNumber-t.lineNumber),this.trackBackings=[];for(const i of l)"video"===i.info.type?this.trackBackings.push(new ks(i)):this.trackBackings.push(new ys(i));this.internalTracks=l})())}async getTrackBackings(){return await this.readMetadata(),i(this.trackBackings),this.trackBackings}getSegmentedInputForPath(e){let t=this.segmentedInputs.find(t=>t.path===e);if(t)return t;let i=null;if(this.internalTracks){i=this.internalTracks.filter(t=>t.fullPath===e).map(e=>({id:e.id,type:e.info.type}))}return t=new ms(this,e,i,null),this.segmentedInputs.push(t),t}async getMetadataTags(){return{}}async getMimeType(){return Ea}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class gs{constructor(e){this.internalTrack=e,this.hydrationPromise=null}hydrate(){return this.hydrationPromise??(this.hydrationPromise=(async()=>{const e=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let t=null;const r=(await e.getTrackBackings()).filter(e=>e.getType()===this.getType());if(1===r.length)t=r[0];else if(this instanceof ks){for(const i of r)if(await i.getCodec()===this.getCodec()){t=i;break}}else{i(this instanceof ys);for(const e of r)if(await e.getCodec()===this.getCodec()){t=e;break}}if(!t)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=t})())}delegate(e){return this.internalTrack.backingTrack?e():this.hydrate().then(e)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return{...Se,default:this.internalTrack.autoselect,primary:this.internalTrack.default}}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){i(this.internalTrack.demuxer.internalTracks);const e=this.internalTrack.info.type;let t=0;for(const i of this.internalTrack.demuxer.internalTracks)if(i.info.type===e&&t++,i===this.internalTrack)break;return t}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(e){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(e))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}async getDurationFromMetadata(e){return await this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(e)}async getLiveRefreshInterval(){return await this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}async getFirstPacket(e){return await this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(e)}async getPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getPacket(e,t)}async getKeyPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(e,t)}async getNextPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getNextPacket(e,t)}async getNextKeyPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(e,t)}}class ks extends gs{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return ii(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}async getColorSpace(){return await this.hydrate(),this.backingVideoTrack.getColorSpace()}async canBeTransparent(){return await this.hydrate(),this.backingVideoTrack.canBeTransparent()}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingVideoTrack.getDecoderConfig()}}class ys extends gs{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return ii(this.internalTrack.fullCodecString)}getNumberOfChannels(){return null!==this.internalTrack.info.numberOfChannels?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingAudioTrack.getDecoderConfig()}}const bs=e=>{const t=e.get("default");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},ws=e=>{const t=e.get("autoselect");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},Ts=e=>{if(null===e)return O;const t=e.split("-")[0];return t||O};class Ss{constructor(){this._isIsobmff=!1}}class vs extends Ss{constructor(){super(...arguments),this._isIsobmff=!0}async _getMajorBrand(e){let t=e._reader.requestSlice(0,12);if(ae(t)&&(t=await t),!t)return null;t.skip(4);const i=_o(t,4);return"ftyp"!==i&&"styp"!==i?null:_o(t,4)}_createDemuxer(e){return new Di(e)}}class Ps extends vs{async _canReadInput(e){const t=await this._getMajorBrand(e);if(null!==t)return"qt "!==t;let i=0;for(let r=0;r<10;r++){let t=e._reader.requestSlice(i,8);if(ae(t)&&(t=await t),!t)return!1;let r=To(t),a=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(ae(t)&&(t=await t),!t)return!1;r=Io(t),a=16}if(r8)return!1;if(nr(i,r)!==Ji.EBML)return!1;const a=cr(i);if("number"!==typeof a)return!1;let s=e._reader.requestSlice(i.filePos,a);if(ae(s)&&(s=await s),!s)return!1;const n=i.filePos;for(;s.filePos<=n+a-2;){const e=lr(s);if(!e)break;const{id:i,size:r}=e,a=s.filePos;if(void 0===r)return!1;switch(i){case Ji.EBMLVersion:if(1!==nr(s,r))return!1;break;case Ji.EBMLReadVersion:if(1!==nr(s,r))return!1;break;case Ji.DocType:if(ur(s,r)!==t)return!1;break;case Ji.DocTypeVersion:if(nr(s,r)>4)return!1}s.filePos=a+r}return!0}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new Lr(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class Cs extends xs{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class Bs extends Ss{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,Oo);if(ae(i)&&(i=await i),!i)break;const r=qo(i);if(!r)break;t=i.filePos+r.size}const i=await Wr(e._reader,t,t+4096);if(!i)return!1;const r=i.header,a=oi(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+a,4);if(ae(s)&&(s=await s),!s)return!1;const n=To(s);if(n===si||n===ni)return!0;t=i.startPos+i.header.totalSize;const o=await Wr(e._reader,t,t+4);if(!o)return!1;const c=o.header;return r.channel===c.channel&&r.sampleRate===c.sampleRate}_createDemuxer(e){return new Hr(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class Es extends Ss{async _canReadInput(e){let t=e._reader.requestSlice(0,12);if(ae(t)&&(t=await t),!t)return!1;const i=_o(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===_o(t,4)}_createDemuxer(e){return new sa(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class _s extends Ss{async _canReadInput(e){let t=e._reader.requestSlice(0,4);return ae(t)&&(t=await t),!!t&&"OggS"===_o(t,4)}_createDemuxer(e){return new Zr(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class Rs extends Ss{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,Oo);if(ae(i)&&(i=await i),!i)break;const r=qo(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return ae(i)&&(i=await i),!!i&&"fLaC"===_o(i,4)}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new ha(e)}}class Fs extends Ss{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,Oo);if(ae(i)&&(i=await i),!i)break;const r=qo(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(ae(i)&&(i=await i),!i)return!1;const r=ca(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),ae(i)&&(i=await i),!i)return!1;const a=ca(i);return!!a&&(r.objectType===a.objectType&&r.samplingFrequencyIndex===a.samplingFrequencyIndex&&r.channelConfiguration===a.channelConfiguration)}_createDemuxer(e){return new ua(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class As extends Ss{async _canReadInput(e){let t=e._reader.requestSlice(0,205);if(ae(t)&&(t=await t),!t)return!1;const i=mo(t,205);return 71===i[0]&&71===i[188]||(71===i[0]&&71===i[204]||71===i[4]&&71===i[196])}_createDemuxer(e){return new wa(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class Ds extends Ss{async _canReadInput(e){let t=e._reader.requestSlice(0,7);if(ae(t)&&(t=await t),!t)return!1;if(!("#EXTM3U"===_o(t,7)))return!1;if(!(e._rootSource instanceof Qa))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return e._rootSource._usedForHls=!0,!0}_createDemuxer(e){return new ps(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return Ea}}const Ms=new Ps,Ns=new Is,Os=new xs,Ls=new Cs,zs=new Bs,Us=new Es,qs=new _s,Ws=new Fs,Hs=new Rs,Vs=new As,js=new Ds,Ks=[js,Ms,Ns,Os,Ls,Us,qs,Hs,zs,Ws,Vs],Xs=[js,Ms,Ns,zs,Ws,Vs];var $s=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,a=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===a)return a=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return a|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else a|=1}catch(n){i(n)}if(1===a)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});ce();let Gs=-1/0,Qs=-1/0,Ys=null;"undefined"!==typeof FinalizationRegistry&&(Ys=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-Gs>=1e3&&(be._error("A VideoSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your VideoSamples as soon as you're done using them."),Gs=t),"undefined"!==typeof VideoFrame&&e.data instanceof VideoFrame&&e.data.close()):(t-Qs>=1e3&&(be._error("An AudioSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your AudioSamples as soon as you're done using them."),Qs=t),"undefined"!==typeof AudioData&&e.data instanceof AudioData&&e.data.close())}));class Js{constructor(){this._referenceCount=0,this._lastAllocationBuffer=null}}const Zs=["I420","I420P10","I420P12","I420A","I420AP10","I420AP12","I422","I422P10","I422P12","I422A","I422AP10","I422AP12","I444","I444P10","I444P12","I444A","I444AP10","I444AP12","NV12","RGBA","RGBX","BGRA","BGRX"],en=new Set(Zs);class tn{get codedWidth(){return this.visibleRect.width}get codedHeight(){return this.visibleRect.height}get displayWidth(){return this.rotation%180===0?this.squarePixelWidth:this.squarePixelHeight}get displayHeight(){return this.rotation%180===0?this.squarePixelHeight:this.squarePixelWidth}get microsecondTimestamp(){return Math.trunc(j*this.timestamp)}get microsecondDuration(){return Math.trunc(j*this.duration)}get hasAlpha(){return this.format&&this.format.includes("A")}constructor(e,t){if(this._closed=!1,e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e)){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0===t.format||!en.has(t.format))throw new TypeError("init.format must be one of: "+Zs.join(", "));if(!Number.isInteger(t.codedWidth)||t.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(t.codedHeight)||t.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.layout){if(!Array.isArray(t.layout))throw new TypeError("init.layout, when provided, must be an array.");for(const e of t.layout){if(!e||"object"!==typeof e||Array.isArray(e))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(e.offset)||e.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(e.stride)||e.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==t.visibleRect&&me(t.visibleRect,"init.visibleRect"),void 0!==t.displayWidth&&(!Number.isInteger(t.displayWidth)||t.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(void 0!==t.displayHeight&&(!Number.isInteger(t.displayHeight)||t.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(void 0!==t.displayWidth!==(void 0!==t.displayHeight))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=t.format,this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0;const i=t.layout??hn(t.format,t.codedWidth,t.codedHeight);let r=t.colorSpace??null;null===r&&(r="RGBA"===this.format||"RGBX"===this.format||"BGRA"===this.format||"BGRX"===this.format?{primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:{primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:t.visibleRect?.left??0,top:t.visibleRect?.top??0,width:t.visibleRect?.width??t.codedWidth,height:t.visibleRect?.height??t.codedHeight},void 0!==t.displayWidth?(this.squarePixelWidth=this.rotation%180===0?t.displayWidth:t.displayHeight,this.squarePixelHeight=this.rotation%180===0?t.displayHeight:t.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=t._doNotCopy?c(e):c(e).slice(),this._layout=i,this.colorSpace=new on(r)}else if("undefined"!==typeof VideoFrame&&e instanceof VideoFrame){if(void 0!==t?.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(void 0!==t?.timestamp&&!Number.isFinite(t?.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(void 0!==t?.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");void 0!==t?.visibleRect&&me(t.visibleRect,"init.visibleRect"),this._data=e,this._layout=null,this.format=e.format,this.visibleRect={left:e.visibleRect?.x??0,top:e.visibleRect?.y??0,width:e.visibleRect?.width??e.codedWidth,height:e.visibleRect?.height??e.codedHeight},this.rotation=t?.rotation??0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=t?.timestamp??e.timestamp/1e6,this.duration=t?.duration??(e.duration??0)/1e6,this.colorSpace=new on(e.colorSpace)}else if("undefined"!==typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!==typeof SVGImageElement&&e instanceof SVGImageElement||"undefined"!==typeof ImageBitmap&&e instanceof ImageBitmap||"undefined"!==typeof HTMLVideoElement&&e instanceof HTMLVideoElement||"undefined"!==typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!==typeof OffscreenCanvas&&e instanceof OffscreenCanvas){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.visibleRect&&me(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new tn(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*j),duration:Math.trunc((t.duration??0)*j)||void 0,visibleRect:t.visibleRect&&{x:t.visibleRect.left,y:t.visibleRect.top,width:t.visibleRect.width,height:t.visibleRect.height}}),t);let i=0,r=0;if("naturalWidth"in e?(i=e.naturalWidth,r=e.naturalHeight):"videoWidth"in e?(i=e.videoWidth,r=e.videoHeight):"width"in e&&(i=Number(e.width),r=Number(e.height)),!i||!r)throw new TypeError("Could not determine dimensions.");const a=t.visibleRect??{left:0,top:0,width:i,height:r},s=new OffscreenCanvas(a.width,a.height),n=s.getContext("2d",{alpha:Z(),willReadFrequently:!0});if(!n)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");n.drawImage(e,-a.left,-a.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:a.width,height:a.height},this.squarePixelWidth=a.width,this.squarePixelHeight=a.height,this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0,this.colorSpace=new on({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof Js))throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=e,e._referenceCount++,this.format=e.getFormat(),null!==this.format&&!Zs.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:e.getCodedWidth(),height:e.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=e.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=e.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0,this.colorSpace=e.getColorSpace()}this.encodeOptions=t?.encodeOptions??{},this.pixelAspectRatio=fe({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),Ys?.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return i(null!==this._data),this._data instanceof Js?new tn(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):cn(this._data)?new tn(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(i(this._layout),new tn(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new tn(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(Ys?.unregister(this),this._data instanceof Js?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):cn(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){if(dn(e),this._closed)throw new Error("VideoSample is closed.");if(null==(e.format??this.format))throw new Error("Cannot get allocation size when format is null.");if(cn(this._data))return this._data.allocationSize(e);return mn(this,e).allocationSize}async copyTo(e,t={}){if(!w(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(dn(t),this._closed)throw new Error("VideoSample is closed.");if(null==(t.format??this.format))throw new Error("Cannot copy video sample data when format is null.");if(i(null!==this._data),cn(this._data))return this._data.copyTo(e,t);if(t.format&&!["RGBA","RGBX","BGRA","BGRX"].includes(this.format)&&["RGBA","RGBX","BGRA","BGRX"].includes(t.format)){if(!(this._data instanceof Js)){if("undefined"===typeof VideoFrame)throw new Error("For this sample, converting from a non-RGB to an RGB format requires VideoFrame to be defined.");const i=this.toVideoFrame(),r=await i.copyTo(e,t);return i.close(),r}{const i={stack:[],error:void 0,hasError:!1};try{const r=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,a;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(a=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");a&&(r=function(){try{a.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t}(i,await this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation},t.colorSpace??"srgb"),!1);if(!(r instanceof tn))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(r.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${r.format}' instead.`);return await r.copyTo(e,t)}catch(u){i.error=u,i.hasError=!0}finally{$s(i)}}}const r=mn(this,t);i(this.format);const a=c(e);if(a.byteLength!(e.data instanceof Uint8Array)||!Number.isInteger(e.stride)||e.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');n=e}else if(this._data instanceof Uint8Array)i(this._layout),i(this._layout.length===s.length),n=this._layout.map((e,t)=>{const i=Math.ceil(this.codedHeight/s[t].heightDivisor);return{data:this._data.subarray(e.offset,e.offset+e.stride*i),stride:e.stride}});else{const e=this._data.getContext("2d");i(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);n=[{data:c(t.data),stride:4*this.codedWidth}]}const o=[],l=s.length;for(let i=0;is.byteLength)throw new Error("Source buffer OOB read.");if(l+u>a.byteLength)throw new Error("Destination buffer OOB write.");const i=s.subarray(c,c+u);a.set(i,l),c+=t,l+=e.destinationStride}o.push(d)}if(void 0!==t.format){const e=this.format.startsWith("RGB")!==t.format.startsWith("RGB"),i=this.format.includes("X")&&t.format.includes("A");if(e||i)for(let t=0;te+t.data.byteLength,0),i=new Uint8Array(t);let r=0;const a=[];for(const s of e)i.set(s.data,r),a.push(r),r+=s.data.byteLength;return new VideoFrame(i,{format:this.format,layout:e.map((e,t)=>({offset:a[t],stride:e.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}return cn(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(i(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(e,t,i,r,a,s,n,o,c){let l=0,u=0,d=this.displayWidth,h=this.displayHeight,f=0,m=0,p=this.displayWidth,g=this.displayHeight;if(void 0!==s?(l=t,u=i,d=r,h=a,f=s,m=n,void 0!==o?(p=o,g=c):(p=d,g=h)):(f=t,m=i,void 0!==r&&(p=r,g=a)),!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(l))throw new TypeError("sx must be a number.");if(!Number.isFinite(u))throw new TypeError("sy must be a number.");if(!Number.isFinite(d)||d<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(h)||h<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(f))throw new TypeError("dx must be a number.");if(!Number.isFinite(m))throw new TypeError("dy must be a number.");if(!Number.isFinite(p)||p<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(g)||g<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:l,sy:u,sWidth:d,sHeight:h}=this._rotateSourceRegion(l,u,d,h,this.rotation));const k=this.toCanvasImageSource();e.save();const y=f+p/2,b=m+g/2;e.translate(y,b),e.rotate(this.rotation*Math.PI/180);const w=this.rotation%180===0?1:p/g;e.scale(1/w,w),e.drawImage(k,l,u,d,h,-p/2,-g/2,p,g),e.restore()}drawWithFit(e,t){if(!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&un(t.crop,"options.");const i=e.canvas.width,r=e.canvas.height,a=t.rotation??this.rotation,[s,n]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let o,c,l,u,d=t.crop;d&&(d=ln(d,s,n));const{sx:h,sy:f,sWidth:m,sHeight:p}=this._rotateSourceRegion(t.crop?.left??0,t.crop?.top??0,t.crop?.width??s,t.crop?.height??n,a);if("fill"===t.fit)o=0,c=0,l=i,u=r;else{const[e,a]=t.crop?[t.crop.width,t.crop.height]:[s,n],d="contain"===t.fit?Math.min(i/e,r/a):Math.max(i/e,r/a);l=e*d,u=a*d,o=(i-l)/2,c=(r-u)/2}e.save();const g=a%180===0?1:l/u;e.translate(i/2,r/2),e.rotate(a*Math.PI/180),e.scale(1/g,g),e.translate(-i/2,-r/2),e.drawImage(this.toCanvasImageSource(),h,f,m,p,o,c,l,u),e.restore()}_rotateSourceRegion(e,t,i,r,a){return 90===a?[e,t,i,r]=[t,this.squarePixelHeight-e-i,r,i]:180===a?[e,t]=[this.squarePixelWidth-e-i,this.squarePixelHeight-t-r]:270===a&&([e,t,i,r]=[this.squarePixelWidth-t-r,e,r,i]),{sx:e,sy:t,sWidth:i,sHeight:r}}_drawWithFitAndMipmapping(e,t,i){const r=e.width,a=e.height,[s,n]=i.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],o=i.crop?i.crop.width:s,c=i.crop?i.crop.height:n;let l=0;2*r0?nn(u,d):{canvas:e,context:t,isNew:i.targetIsFresh};f.imageSmoothingQuality="high",i.fillBlack?(f.fillStyle="black",f.fillRect(0,0,u,d)):m||f.clearRect(0,0,u,d),this.drawWithFit(f,{fit:i.fit,rotation:i.rotation,crop:i.crop}),f.globalCompositeOperation="copy";for(let p=l;p>1;p--){const e=r*2**p,t=a*2**p;f.drawImage(h,0,0,e,t,0,0,e/2,t/2)}f.globalCompositeOperation="source-over",l>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(h,0,0,2*r,2*a,0,0,r,a),t.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(i(null!==this._data),this._data instanceof Js||this._data instanceof Uint8Array){const e=this.toVideoFrame();return queueMicrotask(()=>e.close()),e}return this._data}async transform(e){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.width&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(void 0!==e.height&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(void 0!==e.roundDimensionsTo&&(!Number.isInteger(e.roundDimensionsTo)||e.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(void 0!==e.fit&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==e.width&&void 0!==e.height&&void 0===e.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==e.rotate&&![0,90,180,270].includes(e.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(void 0!==e.crop&&un(e.crop,"options."),void 0!==e.alpha&&!["keep","discard"].includes(e.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");const t=r(this.rotation+(e.rotate??0)),[i,a]=t%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let s=e.crop;s&&(s=ln(s,i,a));const n=s?s.width:i,o=s?s.height:a,c=n/o;let l,u;void 0!==e.width&&void 0===e.height?(l=e.width,u=l/c):void 0===e.width&&void 0!==e.height?(u=e.height,l=u*c):void 0!==e.width&&void 0!==e.height?(l=e.width,u=e.height):(l=n,u=o),l=z(l,e.roundDimensionsTo??1),u=z(u,e.roundDimensionsTo??1);const d={width:l,height:u,fit:e.fit??"fill",rotation:t,crop:s??{left:0,top:0,width:i,height:a},alpha:e.alpha??"keep"};for(const r of rn){let e=r(this,d);if(ae(e)&&(e=await e),null!==e)return e}const{canvas:h,context:f,isNew:m}=nn(d.width,d.height);return this._drawWithFitAndMipmapping(h,f,{fit:d.fit,rotation:d.rotation,crop:d.crop,targetIsFresh:m,fillBlack:"discard"===d.alpha}),new tn(h,{timestamp:this.timestamp,duration:this.duration,rotation:0})}setRotation(e){if(![0,90,180,270].includes(e))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}setDuration(e){if(!Number.isFinite(e)||e<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=e}setEncodeOptions(e){if(!e||"object"!==typeof e)throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=e}[Symbol.dispose](){this.close()}}const rn=[],an=[];let sn=0;const nn=(e,t)=>{for(const a of an)if(a.canvas.width===e&&a.canvas.height===t)return a.age=sn++,{canvas:a.canvas,context:a.context,isNew:!1};let i;if("undefined"!==typeof OffscreenCanvas)i=new OffscreenCanvas(e,t);else{if("undefined"===typeof window||"undefined"===typeof document)throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");i=document.createElement("canvas"),i.width=e,i.height=t}const r=i.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return an.length>=3&&an.splice(he(an,e=>e.age),1),an.push({canvas:i,context:r,age:sn++}),{canvas:i,context:r,isNew:!0}};class on{constructor(e){if(void 0!==e){if(!e||"object"!==typeof e)throw new TypeError("init.colorSpace, when provided, must be an object.");const t=Object.keys(h);if(null!=e.primaries&&!t.includes(e.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${t.join(", ")}.`);const i=Object.keys(m);if(null!=e.transfer&&!i.includes(e.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${i.join(", ")}.`);const r=Object.keys(g);if(null!=e.matrix&&!r.includes(e.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${r.join(", ")}.`);if(null!=e.fullRange&&"boolean"!==typeof e.fullRange)throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=e?.primaries??null,this.transfer=e?.transfer??null,this.matrix=e?.matrix??null,this.fullRange=e?.fullRange??null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}const cn=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,ln=(e,t,r)=>{const a=Math.min(e.left,t),s=Math.min(e.top,r),n=Math.min(e.width,t-a),o=Math.min(e.height,r-s);return i(n>=0),i(o>=0),{left:a,top:s,width:n,height:o}},un=(e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},dn=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!==typeof e.format)throw new TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw new TypeError("options.layout, when provided, must be an array.");for(const t of e.layout){if(!t||"object"!==typeof t)throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==e.rect){if(!e.rect||"object"!==typeof e.rect)throw new TypeError("options.rect, when provided, must be an object.");if(void 0!==e.rect.x&&(!Number.isInteger(e.rect.x)||e.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(void 0!==e.rect.y&&(!Number.isInteger(e.rect.y)||e.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(void 0!==e.rect.width&&(!Number.isInteger(e.rect.width)||e.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(void 0!==e.rect.height&&(!Number.isInteger(e.rect.height)||e.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},hn=(e,t,i)=>{const r=fn(e),a=[];let s=0;for(const n of r){const e=Math.ceil(t/n.widthDivisor),r=Math.ceil(i/n.heightDivisor),o=e*n.sampleBytes,c=o*r;a.push({offset:s,stride:o}),s+=c}return a},fn=e=>{const t=(e,t,i,r,a)=>{const s=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:i,heightDivisor:r},{sampleBytes:t,widthDivisor:i,heightDivisor:r}];return a&&s.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),s};switch(e){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:F(e),i(!1)}},mn=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,a=pn(i,r,e.codedWidth,e.codedHeight,e.format),s=t.layout;let n;if(t.format&&t.format!==e.format){if(!["RGBA","RGBX","BGRA","BGRX"].includes(t.format))throw new Error("NotSupportedError: Invalid destination format.");n=t.format}else n=e.format;return kn(a,n,s)},pn=(e,t,i,r,a)=>{const s={...e};if(void 0!==t){if(0===t.width||0===t.height)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>i)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");s.x=t.x||0,s.y=t.y||0,s.width=t.width||0,s.height=t.height||0}if(!gn(a,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},gn=(e,t)=>{if(null===e)return!0;const i=fn(e);for(let r=0;r{const r=fn(t),a=r.length;if(void 0!==i&&i.length!==a)throw new TypeError(`Layout must have ${a} planes.`);let s=0;const n=[],o=[];for(let c=0;c4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(h),s=Math.max(s,h);for(let e=0;e 0.");if(!Number.isInteger(e.numberOfChannels)||0===e.numberOfChannels)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(e?.timestamp))throw new TypeError("init.timestamp must be a number.");const t=e.data.byteLength/(Tn(e.format)*e.numberOfChannels);if(!Number.isInteger(t))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");let i;if(this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=t,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp,this.duration=t/e.sampleRate,e.data instanceof ArrayBuffer)i=new Uint8Array(e.data);else{if(!ArrayBuffer.isView(e.data))throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");i=new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}const r=this.numberOfFrames*this.numberOfChannels*Tn(this.format);if(i.byteLength=this.numberOfFrames)throw new RangeError("frameOffset out of range");const r=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-i;if(r>this.numberOfFrames-i)throw new RangeError("frameCount out of range");const a=Tn(t),s=Sn(t);if(s&&e.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!s&&0!==e.planeIndex)throw new RangeError("planeIndex out of range");return(s?r:r*this.numberOfChannels)*a}copyTo(e,t){if(!w(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!yn.has(t.format))throw new TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:r,frameCount:a,frameOffset:s}=t;let{planeIndex:n}=t,o=this.format;const c=r??this.format;if(!c)throw new Error("Destination format not determined");const u=this.numberOfFrames,d=this.numberOfChannels,h=s??0;if(h>=u)throw new RangeError("frameOffset out of range");const f=void 0!==a?a:u-h;if(f>u-h)throw new RangeError("frameCount out of range");const m=Tn(c),p=Sn(c);if(p&&n>=d)throw new RangeError("planeIndex out of range");if(!p&&0!==n)throw new RangeError("planeIndex out of range");const g=(p?f:f*d)*m;if(e.byteLength2&&c!==o)return void xn(this._data,k,o,c,d,n,h,f);try{return void this._data.copyTo(e,{planeIndex:n,frameOffset:h,frameCount:f,format:c})}catch(I){if("f32-planar"===c)throw I;o="f32-planar"}}const b=vn(o),T=Tn(o),S=Sn(o);let v;if(this._data instanceof bn){const e=e=>{const t=this._data.getDataPlane(e);if(!(t instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const i=u*T*(S?1:d);if(t.byteLength!==i)throw new TypeError(`Data plane ${e} has invalid size. Expected exactly ${i} bytes, got ${t.byteLength} bytes.`);return t};if(S)if(p)v=e(n),n=0;else{v=new Uint8Array(u*T*d);for(let t=0;tthis.numberOfFrames)throw new RangeError("startFrame out of range.");if(t>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(t0)for(let r=0;r0&&this.copyTo(a,{planeIndex:0,format:this.format,frameOffset:e,frameCount:i});return new wn({data:a,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(Ys?.unregister(this),this._data instanceof bn?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):In(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof bn?this._createAudioDataFromData():In(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(Sn(this.format)){const e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels);for(let i=0;i0;){const a=Math.min(s,o),c=new Float32Array(i*a);for(let t=0;t0;){const a=Math.min(s,o),l=new Float32Array(i*a);for(let t=0;t{switch(e){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},Sn=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},vn=e=>{switch(e){case"u8":case"u8-planar":return(e,t)=>(e.getUint8(t)-128)/128;case"s16":case"s16-planar":return(e,t)=>e.getInt16(t,!0)/32768;case"s32":case"s32-planar":return(e,t)=>e.getInt32(t,!0)/2147483648;case"f32":case"f32-planar":return(e,t)=>e.getFloat32(t,!0)}},Pn=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,N(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,N(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,N(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},In=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,xn=(e,t,i,r,a,s,n,o)=>{const c=vn(i),u=Pn(r),d=Tn(i),h=Tn(r),f=Sn(i);if(Sn(r))if(f){const r=new ArrayBuffer(o*d),a=l(r);e.copyTo(r,{planeIndex:s,frameOffset:n,frameCount:o,format:i});for(let e=0;e{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!==typeof e.metadataOnly)throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!==typeof e.verifyKeyPackets)throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(void 0!==e.skipLiveWait&&"boolean"!==typeof e.skipLiveWait)throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},_n=e=>{if(!le(e))throw new TypeError("timestamp must be a number.")},Rn=(e,t,i)=>i.verifyKeyPackets?t.then(async t=>{if(!t||"delta"===t.type)return t;const i=await e.determinePacketType(t);return i&&(t.type=i),t}):t;class Fn{constructor(e){if(!(e instanceof Xn))throw new TypeError("track must be an InputTrack.");this._track=e}async getFirstPacket(e={}){if(En(e),this._track.input._disposed)throw new lo;return Rn(this._track,this._track._backing.getFirstPacket(e),e)}async getFirstKeyPacket(e={}){En(e);const t=await this.getFirstPacket(e);return t?"key"===t.type?t:this.getNextKeyPacket(t,e):null}async getPacket(e,t={}){if(_n(e),En(t),this._track.input._disposed)throw new lo;return Rn(this._track,this._track._backing.getPacket(e,t),t)}async getNextPacket(e,t={}){if(!(e instanceof pi))throw new TypeError("packet must be an EncodedPacket.");if(En(t),this._track.input._disposed)throw new lo;return Rn(this._track,this._track._backing.getNextPacket(e,t),t)}async getKeyPacket(e,t={}){if(_n(e),En(t),this._track.input._disposed)throw new lo;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const r=await this._track._backing.getKeyPacket(e,t);if(!r)return r;i("key"===r.type);return"delta"===await this._track.determinePacketType(r)?this.getKeyPacket(r.timestamp-1/await this._track.getTimeResolution(),t):r}async getNextKeyPacket(e,t={}){if(!(e instanceof pi))throw new TypeError("packet must be an EncodedPacket.");if(En(t),this._track.input._disposed)throw new lo;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const r=await this._track._backing.getNextKeyPacket(e,t);if(!r)return r;i("key"===r.type);return"delta"===await this._track.determinePacketType(r)?this.getNextKeyPacket(r,t):r}packets(e,t,i={}){if(void 0!==e&&!(e instanceof pi))throw new TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!i?.metadataOnly)throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof pi))throw new TypeError("endPacket must be an EncodedPacket.");if(En(i),this._track.input._disposed)throw new lo;const r=[];let{promise:a,resolve:s}=B(),{promise:n,resolve:o}=B(),c=!1,l=!1,u=null,d=!1;const h=[],f=()=>Math.max(2,h.length);(async()=>{let u=e??await this.getFirstPacket(i);for(;u&&!l&&!this._track.input._disposed&&!(t&&u.sequenceNumber>=t?.sequenceNumber);)r.length>f()?(({promise:n,resolve:o}=B()),await n):(r.push(u),s(),({promise:a,resolve:s}=B()),u=await this.getNextPacket(u,i));c=!0,s()})().catch(e=>{d||(u=e,d=!0,s())});const m=this._track;return{async next(){for(;;){if(m.input._disposed)throw new lo;if(l)return{value:void 0,done:!0};if(d)throw u;if(r.length>0){const e=r.shift(),t=performance.now();for(h.push(t);h.length>0&&t-h[0]>=1e3;)h.shift();return o(),{value:e,done:!1}}if(c)return{value:void 0,done:!0};await a}},return:async()=>(l=!0,o(),s(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}}class An{constructor(e,t){this.onSample=e,this.onError=t}}class Dn{mediaSamplesInRange(e=-1/0,t=1/0,i){_n(e),_n(t);const r=[];let a=!1,s=null,{promise:n,resolve:o}=B(),{promise:c,resolve:l}=B(),u=!1,d=!1,h=!1,f=null,m=null,p=!1;const g={...i,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{f=await this._createDecoder(i=>{l(),i.timestamp>=t&&(d=!0),d?i.close():(s&&(i.timestamp>e?(r.push(s),a=!0):s.close()),i.timestamp>=e&&(r.push(i),a=!0),s=a?null:i,r.length>0&&(o(),({promise:n,resolve:o}=B())))},e=>{p||(m=e,p=!0,o())});const i=this._createPacketSink(),k=await i.getKeyPacket(e,g)??await i.getFirstKeyPacket(g);let y=k;const b=i.packets(k??void 0,void 0,g);for(await b.next();y&&!d&&!this._track.input._disposed;){const e=Mn(r.length);if(r.length+f.getDecodeQueueSize()>e){({promise:c,resolve:l}=B()),await c;continue}f.decode(y);const t=await b.next();if(t.done)break;y=t.value}await b.return(),h||this._track.input._disposed||await f.flush(),!a&&s&&r.push(s),u=!0,o()})().catch(e=>{p||(m=e,p=!0,o())}).finally(()=>{f?.close()});const k=this._track,y=()=>{s?.close();for(const e of r)e.close()};return{async next(){for(;;){if(k.input._disposed)throw h=!0,d=!0,y(),new lo;if(h)return{value:void 0,done:!0};if(p)throw h=!0,d=!0,y(),m;if(r.length>0){const e=r.shift();return l(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};await n}},return:async()=>(h=!0,d=!0,l(),o(),y(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(e,t){(e=>{if(!(Symbol.iterator in e)&&!(Symbol.asyncIterator in e))throw new TypeError("Argument must be an iterable or async iterable.")})(e);const r=async function*(e){Symbol.iterator in e?yield*e[Symbol.iterator]():yield*e[Symbol.asyncIterator]()}(e),a=[],s=[];let{promise:n,resolve:o}=B(),{promise:c,resolve:l}=B(),u=!1,d=!1,h=null,f=null,m=!1;const p=e=>{s.push(e),o(),({promise:n,resolve:o}=B())},g={...t,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{h=await this._createDecoder(e=>{if(l(),d)return void e.close();let t=0;for(;a.length>0&&e.timestamp-a[0]>-1e-10;)t++,a.shift();if(t>0)for(let i=0;i{m||(f=e,m=!0,o())});const e=this._createPacketSink();let t=null,n=null,k=-1;const y=async()=>{i(n),i(h);let t=n;for(h.decode(t);t.sequenceNumberr&&!d;)({promise:c,resolve:l}=B()),await c;if(d)break;const a=await e.getNextPacket(t,g);i(a),h.decode(a),t=a}k=-1},b=async()=>{i(h),await h.flush();for(let e=0;e{m||(f=e,m=!0,o())}).finally(()=>{h?.close()});const k=this._track,y=()=>{for(const e of s)e?.close()};return{async next(){for(;;){if(k.input._disposed)throw d=!0,y(),new lo;if(d)return{value:void 0,done:!0};if(m)throw d=!0,y(),f;if(s.length>0){const e=s.shift();return i(void 0!==e),l(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};await n}},return:async()=>(d=!0,l(),o(),y(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}}const Mn=e=>0===e?40:8;class Nn extends An{constructor(e,t,r,a,s,n){super(e,t),this.codec=r,this.decoderConfig=a,this.rotation=s,this.timeResolution=n,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new G,this.customDecoderQueueSize=0,this.inputTimestamps=[],this.sampleQueue=[],this.currentPacketIndex=0,this.raslSkipped=!1,this.alphaDecoder=null,this.alphaHadKeyframe=!1,this.colorQueue=[],this.alphaQueue=[],this.merger=null,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue=[],this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,this.finalSamples=[],this.mergeAlphaPromises=[];const o=Cn.find(e=>e.supports(r,a));if(o)this.customDecoder=new o,this.customDecoder.codec=r,this.customDecoder.config=a,this.customDecoder.onSample=e=>{if(!(e instanceof tn))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=e=>{if(this.alphaQueue.length>0){const t=this.alphaQueue.shift();i(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(te()){if("avc"===r&&this.decoderConfig.description){const e=je(c(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=Xe(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig={...this.decoderConfig,hardwareAcceleration:"prefer-software"}),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=Ge(t),this.decoderConfig={...this.decoderConfig,description:Ve(e)}))}}y(this.decoderConfig.colorSpace)||(this.decoderConfig={...this.decoderConfig,colorSpace:{primaries:this.decoderConfig.colorSpace?.primaries??"bt709",matrix:this.decoderConfig.colorSpace?.matrix??"bt709",transfer:this.decoderConfig.colorSpace?.transfer??"bt709",fullRange:this.decoderConfig.colorSpace?.fullRange??!1}})}const t=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(i(this.decoder),Math.max(this.decoder.decodeQueueSize,this.alphaDecoder?.decodeQueueSize??0))}decode(e){if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--);else{if(i(this.decoder),Y()||C(this.inputTimestamps,e.timestamp,e=>e),te()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const a of Oe(e.data,this.decoderConfig)){const r=Le(e.data[a.offset]);if(i||(i=r>=1&&r<=5),r===Re.AUD){if(i)break;t.length=0}r>=20&&r<=31||t.push(e.data.subarray(a.offset,a.offset+a.length))}if(!this.decoderConfig.description)for(let e=0;e{if(t.description){const i=3&c(t.description)[4];return We(e,i+1)}return qe(e)})(t,this.decoderConfig);e=new pi(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=lt(e.data,this.decoderConfig);t&&(e=new pi(t,e.type,e.timestamp,e.duration))}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}decodeAlphaData(e){if(!e.sideData.alpha)return void this.pushNullAlphaFrame();if(this.merger||(this.merger=new Ln),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();i(void 0!==t),this.mergeAlpha(t,e)}else this.alphaQueue.push(e);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){const e=this.colorQueue.shift();i(void 0!==e),this.mergeAlpha(e,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},t=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}const t=kt(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===t),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(t??e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(const t of Qe(e,this.decoderConfig)){const i=Ye(e[t.offset]);if(i===Ae.RASL_N||i===Ae.RASL_R)return!0}return!1}sampleHandler(e){if(Y()){if(this.sampleQueue.length>0&&e.timestamp>=a(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}C(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();i(void 0!==t),e.setTimestamp(t),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}async mergeAlpha(e,t){const r=B();this.mergeAlphaPromises.push(r.promise);const a={sample:null};this.finalSamples.push(a);try{if(t){i(this.merger);const r=await this.merger.merge(e,t);a.sample=new tn(r)}else a.sample=new tn(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(s){E(this.finalSamples,a),this.onError(s)}finally{E(this.mergeAlphaPromises,r.promise),r.resolve()}}async flush(){if(this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(i(this.decoder),await Promise.all([this.decoder.flush(),this.alphaDecoder?.flush()]),await Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>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),Y()){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(i(this.decoder),"closed"!==this.decoder.state&&this.decoder.close(),this.alphaDecoder&&"closed"!==this.alphaDecoder.state&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>e?.close()),this.alphaQueue.length=0,this.merger?.close());for(const e of this.sampleQueue)e.close();this.sampleQueue.length=0}}let On=null;class Ln{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!On){const e=new Blob([`(${zn.toString()})()`],{type:"application/javascript"});On=URL.createObjectURL(e)}const e=N(navigator.hardwareConcurrency,1,4);for(let t=0;t{const t=e.data,i=this.pendingRequests.get(t.id);i&&(this.pendingRequests.delete(t.id),"error"in t?i.reject(new Error(t.error)):i.resolve(t.frame))}),e.addEventListener("error",e=>{const t=new Error(e.message||"Color/alpha merge worker error.");for(const i of this.pendingRequests.values())i.reject(t);this.pendingRequests.clear()}),this.workers.push(e)}}const i=this.nextRequestId++,r=B();this.pendingRequests.set(i,r);const a=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,a.postMessage({id:i,color:e,alpha:t},{transfer:[e,t]}),r.promise}close(){for(const t of this.workers)t.terminate();this.workers.length=0;const e=new Error("Color/alpha merger closed.");for(const t of this.pendingRequests.values())t.reject(e);this.pendingRequests.clear()}}const zn=()=>{let e=null,t=null,i=Promise.resolve();self.addEventListener("message",e=>{const{id:t,color:a,alpha:s}=e.data;i=i.then(async()=>{try{const e=await r(a,s);self.postMessage({id:t,frame:e},{transfer:[e]})}catch(e){self.postMessage({id:t,error:e.message})}finally{a.close(),s.close()}})});const r=async(e,t)=>{const i=e.format,r=t.format;if(!i||!r)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");const o=i.includes("P10"),c=i.includes("P12"),l=r.includes("P10"),u=r.includes("P12");if(l!==o||u!==c)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${i}', alpha: '${r}').`);if("RGBX"===i||"RGBA"===i||"BGRX"===i||"BGRA"===i)return await a(e,t,i);if("I420"===i||"I420P10"===i||"I420P12"===i||"I422"===i||"I422P10"===i||"I422P12"===i||"I444"===i||"I444P10"===i||"I444P12"===i)return await s(e,t,i);if("NV12"===i)return await n(e,t);throw new Error(`CPU color/alpha merging does not support format '${i}'.`)},a=async(e,t,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=r*a,n=new Uint8Array(4*s);await e.copyTo(n);const c=await o(t,r,a,1);for(let o=0,u=3;o{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=i.includes("P10"),n=i.includes("P12"),c=s||n?2:1;let l,u;i.startsWith("I420")?(l=Math.ceil(r/2),u=Math.ceil(a/2)):i.startsWith("I422")?(l=Math.ceil(r/2),u=a):(l=r,u=a);const d=r*a,h=d*c,f=l*u*c,m=new Uint8Array(h+2*f+d*c);await e.copyTo(m);const p=await o(t,r,a,c),g=h+2*f;m.set(p,g);const k={format:i.slice(0,4)+"A"+i.slice(4),codedWidth:r,codedHeight:a,timestamp:e.timestamp,duration:e.duration??void 0,transfer:[m.buffer]};return new VideoFrame(m,k)},n=async(e,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=r*a,n=Math.ceil(r/2)*Math.ceil(a/2),c=e.allocationSize();t&&t.byteLength===c||(t=new Uint8Array(c)),await e.copyTo(t);const l=new Uint8Array(s+2*n+s);l.set(t.subarray(0,s),0);const u=s,d=s+n,h=s;for(let o=0;o{const s=t.allocationSize();e&&e.byteLength===s||(e=new Uint8Array(s)),await t.copyTo(e);const n=t.format;if("RGBA"===n||"BGRA"===n||"RGBX"===n||"BGRX"===n){const t="RGBA"===n||"RGBX"===n?0:2,a=i*r;for(let i=0;i{if(!e||"object"!==typeof e)throw new TypeError("decoderOptions must be an object.");if(void 0!==e.hardwareAcceleration&&!["no-preference","prefer-hardware","prefer-software"].includes(e.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(void 0!==e.optimizeForLatency&&"boolean"!==typeof e.optimizeForLatency)throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")};class qn extends Dn{constructor(e,t={}){if(!(e instanceof Qn))throw new TypeError("videoTrack must be an InputVideoTrack.");Un(t),super(),this._track=e,this._decoderOptions=t}async _createDecoder(e,t){if(!(await this._track.canDecode())){if("undefined"===typeof VideoDecoder)throw new Error(ie("VideoDecoder"));throw new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const r=await this._track.getCodec(),a=await this._track.getRotation();let s=await this._track.getDecoderConfig();const n=await this._track.getTimeResolution();return i(r&&s),s={...s,hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency},new Nn(e,t,r,s,a,n)}_createPacketSink(){return new Fn(this._track)}async getSample(e,t={}){_n(e);for await(const i of this.mediaSamplesAtTimestamps([e],t))return i;throw new Error("Internal error: Iterator returned nothing.")}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Wn{constructor(e,t={}){if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof Qn))throw new TypeError("videoTrack must be an InputVideoTrack.");if(t&&"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.alpha&&"boolean"!==typeof t.alpha)throw new TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==t.width&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(void 0!==t.height&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(void 0!==t.fit&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==t.width&&void 0!==t.height&&void 0===t.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==t.crop&&un(t.crop,"options."),void 0!==t.poolSize&&("number"!==typeof t.poolSize||!Number.isInteger(t.poolSize)||t.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");void 0!==t.decoderOptions&&Un(t.decoderOptions),this._videoTrack=e,this._alpha=t.alpha??!1,this._options=t,this._fit=t.fit??"fill",this._videoSampleSink=new qn(e,t.decoderOptions),this._canvasPool=Array.from({length:t.poolSize??0},()=>null)}_ensureInit(){return this._initPromise??(this._initPromise=(async()=>{const e=this._options,t=this._videoTrack,i=e.rotation??await t.getRotation(),r=await t.getSquarePixelWidth(),a=await t.getSquarePixelHeight(),[s,n]=i%180===0?[r,a]:[a,r];let o=e.crop;o&&(o=ln(o,s,n));let[c,l]=o?[o.width,o.height]:[s,n];const u=c/l;void 0!==e.width&&void 0===e.height?(c=e.width,l=Math.round(c/u)):void 0===e.width&&void 0!==e.height?(l=e.height,c=Math.round(l*u)):void 0!==e.width&&void 0!==e.height&&(c=e.width,l=e.height),this._width=c,this._height=l,this._rotation=i,this._crop=o})())}_videoSampleToWrappedCanvas(e){const t=this._width,r=this._height;let a=this._canvasPool[this._nextCanvasIndex],s=!1;a||("undefined"!==typeof document?(a=document.createElement("canvas"),a.width=t,a.height=r):a=new OffscreenCanvas(t,r),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=a),s=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);const n=a.getContext("2d",{alpha:this._alpha||Z()});i(n),e._drawWithFitAndMipmapping(a,n,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:s,fillBlack:!this._alpha&&Z()});const o={canvas:a,timestamp:e.timestamp,duration:e.duration};return e.close(),o}async getCanvas(e,t){_n(e),await this._ensureInit();const i=await this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)}async*canvases(e,t,i){await this._ensureInit(),yield*M(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e))}async*canvasesAtTimestamps(e,t){await this._ensureInit(),yield*M(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e))}}class Hn extends An{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new G,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const a=t=>{let i=t.timestamp;null!==this.expectedFirstTimestamp&&null===this.currentTimestamp&&(this.timestampOffset=this.expectedFirstTimestamp-i),i+=this.timestampOffset,(null===this.currentTimestamp||Math.abs(i-this.currentTimestamp)>=t.duration)&&(this.currentTimestamp=i);const a=this.currentTimestamp;if(this.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();const s=r.sampleRate;t.setTimestamp(Math.round(a*s)/s),e(t)},s=Bn.find(e=>e.supports(i,r));if(s)this.customDecoder=new s,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof wn))throw new TypeError("The argument passed to onSample must be an AudioSample.");a(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:e=>{try{a(new wn(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(i(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--)):(i(this.decoder),this.expectedFirstTimestamp??(this.expectedFirstTimestamp=e.timestamp),this.decoder.decode(e.toEncodedAudioChunk()))}async flush(){this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(i(this.decoder),await this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(i(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class Vn extends An{constructor(e,t,r){super(e,t),this.decoderConfig=r,this.currentTimestamp=null,i(Wt.includes(r.codec)),this.codec=r.codec;const{dataType:a,sampleSize:s,littleEndian:n}=ti(this.codec);switch(this.inputSampleSize=s,s){case 1:"unsigned"===a?this.readInputValue=(e,t)=>e.getUint8(t)-128:"signed"===a?this.readInputValue=(e,t)=>e.getInt8(t):"ulaw"===a?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=~e;128&r&&(r&=-129,t=-1),i=5+((240&r)>>4);const a=(1<(e=>{let t=0,i=0,r=85^e;128&r&&(r&=-129,t=-1),i=4+((240&r)>>4);let a=0;return a=4!==i?1<e.getUint16(t,n)-32768:"signed"===a?this.readInputValue=(e,t)=>e.getInt16(t,n):i(!1);break;case 3:"unsigned"===a?this.readInputValue=(e,t)=>A(e,t,n)-2**23:"signed"===a?this.readInputValue=(e,t)=>((e,t,i)=>A(e,t,i)<<8>>8)(e,t,n):i(!1);break;case 4:"unsigned"===a?this.readInputValue=(e,t)=>e.getUint32(t,n)-2**31:"signed"===a?this.readInputValue=(e,t)=>e.getInt32(t,n):"float"===a?this.readInputValue=(e,t)=>e.getFloat32(t,n):i(!1);break;case 8:"float"===a?this.readInputValue=(e,t)=>e.getFloat64(t,n):i(!1);break;default:F(s),i(!1)}switch(s){case 1:"ulaw"===a||"alaw"===a?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(e,t,i)=>e.setUint8(t,i+128));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i<<8,!0);break;case 4:this.outputSampleSize=4,"float"===a?(this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0)):(this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0);break;default:F(s),i(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=l(e.data),i=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,r=i*this.decoderConfig.numberOfChannels*this.outputSampleSize,a=new ArrayBuffer(r),s=new DataView(a);for(let l=0;l=n)&&(this.currentTimestamp=e.timestamp);const o=this.currentTimestamp;this.currentTimestamp+=n;const c=new wn({format:this.outputFormat,data:a,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:i,timestamp:o});this.onSample(c)}async flush(){}close(){}}class jn extends Dn{constructor(e){if(!(e instanceof Yn))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=e}async _createDecoder(e,t){if(!(await this._track.canDecode())){if("undefined"===typeof AudioDecoder)throw new Error(ie("AudioDecoder"));throw new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const r=await this._track.getCodec(),a=await this._track.getDecoderConfig();return i(r&&a),Wt.includes(a.codec)?new Vn(e,t,a):new Hn(e,t,r,a)}_createPacketSink(){return new Fn(this._track)}async getSample(e,t={}){_n(e);for await(const i of this.mediaSamplesAtTimestamps([e],t))return i;throw new Error("Internal error: Iterator returned nothing.")}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Kn{constructor(e){if(!(e instanceof Yn))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new jn(e)}_audioSampleToWrappedArrayBuffer(e){const t={buffer:e.toAudioBuffer(),timestamp:e.timestamp,duration:e.duration};return e.close(),t}async getBuffer(e,t){_n(e);const i=await this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)}buffers(e,t,i){return M(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return M(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class Xn{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof Qn}isAudioTrack(){return this instanceof Yn}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}async getInternalCodecId(){return this._backing.getInternalCodecId()}get internalCodecId(){return $n(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}async getLanguageCode(){return this._backing.getLanguageCode()}get languageCode(){return $n(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}async getName(){return this._backing.getName()}get name(){return $n(this._backing.getName(),"name","getName")}async getTimeResolution(){return this._backing.getTimeResolution()}get timeResolution(){return $n(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}async isRelativeToUnixEpoch(){return this._backing.isRelativeToUnixEpoch()}async getUnixTimeForTimestamp(e){return this._backing.getUnixTimeForTimestamp(e)}async hasUnixTimeMapping(){return null!==await this._backing.getUnixTimeForTimestamp(await this.getFirstTimestamp())}async getDisposition(){return this._backing.getDisposition()}get disposition(){return $n(this._backing.getDisposition(),"disposition","getDisposition")}async getBitrate(){return this._backing.getBitrate()}async getAverageBitrate(){return this._backing.getAverageBitrate()}async getFirstTimestamp(){const e=await this._backing.getFirstPacket({metadataOnly:!0});return e?.timestamp??0}async computeDuration(e){const t=await this._backing.getPacket(1/0,{metadataOnly:!0,...e});return U((t?.timestamp??0)+(t?.duration??0),await this.getTimeResolution())}async getDurationFromMetadata(e={}){return this._backing.getDurationFromMetadata(e)}async computePacketStats(e=1/0,t){const i=new Fn(this);let r=1/0,a=-1/0,s=0,n=0;for await(const o of i.packets(void 0,void 0,{metadataOnly:!0,...t})){if(s>=e&&o.timestamp>=a)break;r=Math.min(r,o.timestamp),a=Math.max(a,o.timestamp+o.duration),s++,n+=o.byteLength}return{packetCount:s,averagePacketRate:s?Number((s/(a-r)).toPrecision(16)):0,averageBitrate:s?Number((8*n/(a-r)).toPrecision(16)):0}}async isLive(){return null!==await this._backing.getLiveRefreshInterval()}async getLiveRefreshInterval(){return this._backing.getLiveRefreshInterval()}canBePairedWith(e){if(!(e instanceof Xn))throw new TypeError("other must be an InputTrack.");return this.input===e.input&&this!==e&&0n!==(this._backing.getPairingMask()&e._backing.getPairingMask())}async getPairableTracks(e){return this.input.getTracks(to({filter:e=>e.canBePairedWith(this)},e))}async getPairableVideoTracks(e){return this.input.getVideoTracks(to({filter:e=>e.canBePairedWith(this)},e))}async getPairableAudioTracks(e){return this.input.getAudioTracks(to({filter:e=>e.canBePairedWith(this)},e))}async getPrimaryPairableVideoTrack(e){return this.input.getPrimaryVideoTrack(to({filter:e=>e.canBePairedWith(this)},e))}async getPrimaryPairableAudioTrack(e){return this.input.getPrimaryAudioTrack(to({filter:e=>e.canBePairedWith(this)},e))}async hasPairableTrack(e){e&&(e=Gn(e));const t=await this.input.getTracks();for(const i of t)if(this.canBePairedWith(i)&&(!e||await e(i)))return!0;return!1}hasPairableVideoTrack(e){return e&&(e=Gn(e)),this.hasPairableTrack(async t=>t.isVideoTrack()&&(!e||await e(t)))}hasPairableAudioTrack(e){return e&&(e=Gn(e)),this.hasPairableTrack(async t=>t.isAudioTrack()&&(!e||await e(t)))}}const $n=(e,t,i)=>{if(ae(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},Gn=e=>{if(void 0!==e&&"function"!==typeof e)throw new TypeError("predicate, when provided, must be a function.");return e?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("predicate must return or resolve to a boolean value.");return e},r=e(t);return ae(r)?r.then(i):i(r)}:void 0};class Qn extends Xn{constructor(e,t){super(e,t),this._pixelAspectRatioCache=null,this._backing=t}get type(){return"video"}async getCodec(){return this._backing.getCodec()}get codec(){return $n(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await(this._backing.getHasOnlyKeyPackets?.())??"prores"===await this._backing.getCodec()}async getCodedWidth(){return this._backing.getCodedWidth()}get codedWidth(){return $n(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}async getCodedHeight(){return this._backing.getCodedHeight()}get codedHeight(){return $n(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}async getRotation(){return this._backing.getRotation()}get rotation(){return $n(this._backing.getRotation(),"rotation","getRotation")}async getSquarePixelWidth(){return this._backing.getSquarePixelWidth()}get squarePixelWidth(){return $n(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}async getSquarePixelHeight(){return this._backing.getSquarePixelHeight()}get squarePixelHeight(){return $n(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}async getPixelAspectRatio(){return this._pixelAspectRatioCache??(this._pixelAspectRatioCache=fe({num:await this.getSquarePixelWidth()*await this.getCodedHeight(),den:await this.getSquarePixelHeight()*await this.getCodedWidth()}))}get pixelAspectRatio(){return this._pixelAspectRatioCache??(this._pixelAspectRatioCache=fe({num:$n(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*$n(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:$n(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*$n(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")}))}async getDisplayWidth(){const e=await(this._backing.getMetadataDisplayWidth?.());if(null!=e)return e;return await this.getRotation()%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight()}get displayWidth(){const e=this._backing.getMetadataDisplayWidth?.();if(void 0!==e){const t=$n(e,"displayWidth","getDisplayWidth");if(null!==t)return t}const t=$n(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return $n(t,"displayWidth","getDisplayWidth")}async getDisplayHeight(){const e=await(this._backing.getMetadataDisplayHeight?.());if(null!=e)return e;return await this.getRotation()%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth()}get displayHeight(){const e=this._backing.getMetadataDisplayHeight?.();if(void 0!==e){const t=$n(e,"displayHeight","getDisplayHeight");if(null!==t)return t}const t=$n(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return $n(t,"displayHeight","getDisplayHeight")}async getColorSpace(){return this._backing.getColorSpace()}async hasHighDynamicRange(){const e=await this._backing.getColorSpace();return"bt2020"===e.primaries||"smpte432"===e.primaries||"pq"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix}async canBeTransparent(){return this._backing.canBeTransparent()}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const e=await(this._backing.getMetadataCodecParameterString?.());if(null!=e)return e;const t=await this._backing.getDecoderConfig();return t?.codec??null}async canDecode(){try{const e=await this._backing.getDecoderConfig();if(!e)return!1;const t=await this._backing.getCodec();if(i(null!==t),Cn.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(await VideoDecoder.isConfigSupported(e)).supported}catch(e){return be._error("Error during decodability check:",e),!1}}async determinePacketType(e){if(!(e instanceof pi))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const t=await this.getCodec();if(null===t)return null;const r=await this.getDecoderConfig();return i(r),kt(t,r,e.data)}async computeFrameRateMetrics(e={}){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.targetPacketCount&&(!le(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");const t=await this.getTimeResolution(),i=e.targetPacketCount??256,r=new Fn(this),a=[];let s=-1/0,n=0;for await(const I of r.packets(void 0,void 0,{metadataOnly:!0})){if(a.length>=i&&I.timestamp>=s)break;a.push(I.timestamp),s=Math.max(s,I.timestamp),n++}const o=new Float64Array(a.length);for(let I=0;Ie-t),b=k-1>>1,w=k>>1;let T=0,S=0,v=0;for(const I of y)if(v+=f.get(I),0===T&&v>b&&(T=I),v>w){S=I;break}const P=(d/T+d/S)/2;return{underlyingFrameRate:u,bestGuessFrameRate:null!==u?u:so(P),minFrameRate:d/p,maxFrameRate:d/m,averageFrameRate:d*k/g,medianFrameRate:P,frameRateIsConstant:null!==u&&1===m&&1===p,probedPacketCount:n}}}class Yn extends Xn{constructor(e,t){super(e,t),this._backing=t}get type(){return"audio"}async getCodec(){return this._backing.getCodec()}get codec(){return $n(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await(this._backing.getHasOnlyKeyPackets?.())??!0}async getNumberOfChannels(){return this._backing.getNumberOfChannels()}get numberOfChannels(){return $n(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}async getSampleRate(){return this._backing.getSampleRate()}get sampleRate(){return $n(this._backing.getSampleRate(),"sampleRate","getSampleRate")}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const e=await(this._backing.getMetadataCodecParameterString?.());if(null!=e)return e;const t=await this._backing.getDecoderConfig();return t?.codec??null}async canDecode(){try{const e=await this._backing.getDecoderConfig();if(!e)return!1;const t=await this._backing.getCodec();if(i(null!==t),Bn.some(i=>i.supports(t,e)))return!0;if(e.codec.startsWith("pcm-"))return!0;if("undefined"===typeof AudioDecoder)return!1;return!0===(await AudioDecoder.isConfigSupported(e)).supported}catch(e){return be._error("Error during decodability check:",e),!1}}async determinePacketType(e){if(!(e instanceof pi))throw new TypeError("packet must be an EncodedPacket.");return null===await this.getCodec()?null:"key"}}const Jn=e=>-(e??-1/0),Zn=e=>-e,eo=e=>{if("object"!==typeof e||!e)throw new TypeError("query must be an object.");if(void 0!==e.filter&&"function"!==typeof e.filter)throw new TypeError("query.filter, when provided, must be a function.");if(void 0!==e.sortBy&&"function"!==typeof e.sortBy)throw new TypeError("query.sortBy, when provided, must be a function.");return{filter:e.filter?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("query.filter must return or resolve to a boolean.");return e},r=e.filter(t);return ae(r)?r.then(i):i(r)}:void 0,sortBy:e.sortBy?t=>{const i=e=>{if("number"!==typeof e&&(!Array.isArray(e)||!e.every(e=>"number"===typeof e)))throw new TypeError("query.sortBy must return or resolve to a number or an array of numbers.");return e},r=e.sortBy(t);return ae(r)?r.then(i):i(r)}:void 0}},to=(e,t)=>({filter:e?.filter||t?.filter?i=>{const r=e?.filter?.(i)??!0,a=e=>!1!==e&&(t?.filter?.(i)??!0);return ae(r)?r.then(a):a(r)}:void 0,sortBy:e?.sortBy||t?.sortBy?i=>{const r=e?.sortBy?.(i)??[],a=t?.sortBy?.(i)??[],s=(e,t)=>[...Array.isArray(e)?e:[e],...Array.isArray(t)?t:[t]];return ae(r)||ae(a)?Promise.all([r,a]).then(([e,t])=>s(e,t)):s(r,a)}:void 0}),io=async(e,t)=>{let i=e;if(t?.filter){const r=e.map(e=>t.filter(e));if(r.some(e=>ae(e))){const t=await Promise.all(r);i=e.filter((e,i)=>t[i])}else i=e.filter((e,t)=>r[t])}if(!t?.sortBy)return i;const r=i.map(e=>t.sortBy(e)),a=r.some(e=>ae(e))?await Promise.all(r):r;return i.map((e,t)=>({track:e,sortValue:a[t]})).sort((e,t)=>{const i=Array.isArray(e.sortValue)?e.sortValue:[e.sortValue],r=Array.isArray(t.sortValue)?t.sortValue:[t.sortValue],a=Math.max(i.length,r.length);for(let s=0;se.track)},ro=(e,t)=>{const i=1e6,r=1+1e-9,a=[12,15,20,24e3/1001,24,25,3e4/1001,30,48,50,6e4/1001,60,100,12e4/1001,120,144,240];if(e.length<2)return null;const s=new Float64Array(e.length-1);for(let T=1;T0))return null;s[T-1]=t}const n=s.slice();n.sort();let o=n[Math.floor(.05*n.length)];for(let T=0;T<6;T++){let e=0,t=0;for(const a of s){const i=Math.max(1,Math.round(a/o));Math.abs(a-i*o)>=r||(e+=a,t+=i)}if(0===t)return null;const i=e/t;if(Math.abs(i-o)<=1e-12*Math.max(1,o)){o=i;break}o=i}let c=0,l=0,u=0;for(const T of s){const e=Math.max(1,Math.round(T/o));Math.abs(T-e*o)>=r||(c++,l+=T,u+=e)}if(c/s.length<.98)return null;o=l/u;const d=1/Math.min(u,1e3),h=Math.max(Number.EPSILON,o-d),f=o+d,m=t/f,p=t/h,g=t/o;let k=null,y=1/0;for(const T of a){if(Tp)continue;const e=Math.abs(T/g-1);e{for(let r=1;r<=i;r++){const i=Math.floor(e*r)+1;if(i/r{const t=[24/1.001,30/1.001,60/1.001,120/1.001],i=[12,15,20,24,25,30,48,50,60,100,120,144,240];for(const s of t)if(Math.abs(s/e-1)<=5e-4)return s;let r=e,a=1/0;for(const s of i){const t=Math.abs(s/e-1);t<=.025&&t!(e instanceof Ss)))throw new TypeError("options.formats must be an array of InputFormat.");if(!(e.source instanceof $a||e.source instanceof Ga))throw new TypeError("options.source must be a Source or SourceRef.");if(e.source instanceof $a&&e.source._disposed)throw new TypeError("options.source must not be a disposed Source.");if(void 0!==e.initInput&&!(e.initInput instanceof oo))throw new TypeError("options.initInput, when provided, must be an Input.");void 0!==e.formatOptions&&((e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(`${t}, when provided, must be an object.`);if(void 0!==e.isobmff){if(!e.isobmff||"object"!==typeof e.isobmff)throw new TypeError(`${t}.isobmff, when provided, must be an object.`);if(void 0!==e.isobmff.resolveKeyId&&"function"!==typeof e.isobmff.resolveKeyId)throw new TypeError(`${t}.isobmff.resolveKeyId, when provided, must be a function.`)}if(void 0!==e.hls){if(!e.hls||"object"!==typeof e.hls)throw new TypeError(`${t}.hls, when provided, must be an object.`);if(void 0!==e.hls.offsetTimestampsByDateTime&&"boolean"!==typeof e.hls.offsetTimestampsByDateTime)throw new TypeError(`${t}.hls.offsetTimestampsByDateTime, when provided, must be a boolean.`)}})(e.formatOptions,"formatOptions"),this._formats=e.formats,this._initInput=e.initInput??null,this._formatOptions=e.formatOptions??{},e.source instanceof $a?this._rootRef=e.source.ref():this._rootRef=e.source,this._sourceRefs.push(this._rootRef)}get _rootSource(){return this._rootRef.source}async _getSourceUncached(e){i(this._rootSource instanceof Qa);const t=await this._rootSource._resolveRequest(e);return this._emit("source",{source:t.source,request:e,isRoot:e.isRoot}),t}_getSourceCached(e,t=1){const r=this._sourceCache.find(i=>i.cacheGroup===t&&Ya(i.request,e));if(r)return r.age++,Promise.resolve(r.sourceRef.source.ref());const a=this._sourceCachePromises.find(i=>i.cacheGroup===t&&Ya(i.request,e));if(a)return a.promise.then(e=>e.sourceRef.source.ref());const s=(async()=>{const r=await this._getSourceUncached(e);if(de(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount)>=4){const e=he(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount?e.age:1/0);i(-1!==e);const r=this._sourceCache[e];this._sourceCache.splice(e,1),r.sourceRef.free(),E(this._sourceRefs,r.sourceRef)}this._sourceRefs.push(r);const a=this._sourceCachePromises.findIndex(t=>t.request===e);i(-1!==a),this._sourceCachePromises.splice(a,1);return{request:e,sourceRef:r,age:this._nextSourceCacheAge++,cacheGroup:t}})();return this._sourceCachePromises.push({request:e,cacheGroup:t,promise:s}),s.then(e=>{const t=e.sourceRef.source.ref();return this._sourceCache.push(e),t})}_getDemuxer(){return this._demuxerPromise??(this._demuxerPromise=(async()=>{this._reader=new uo(this._rootSource),this._emit("source",{source:this._rootSource,request:null,isRoot:!0});for(const e of this._formats){if(await e._canReadInput(this))return this._format=e,this._onFormatDetermined?.(e),e._createDemuxer(this)}throw new co})())}get source(){return this._rootSource}async getFormat(){return await this._getDemuxer(),i(this._format),this._format}async canRead(){try{return await this._getDemuxer(),!0}catch(e){if(e instanceof co)return!1;throw e}}async getFirstTimestamp(e){e??(e=await this.getTracks());const t=e.filter(e=>null!==e);if(0===t.length)return 0;const i=await Promise.all(t.map(e=>e._backing.getFirstPacket({metadataOnly:!0}))),r=Math.min(...i.map(e=>e?.timestamp??1/0));return r===1/0?0:r}async computeDuration(e,t){e??(e=await this.getTracks());const i=e.filter(e=>null!==e);if(0===i.length)return 0;const r=await Promise.all(i.map(e=>e.computeDuration(t)));return Math.max(...r)}async getDurationFromMetadata(e,t){e??(e=await this.getTracks());const i=e.filter(e=>null!==e),r=(await Promise.all(i.map(e=>e.getDurationFromMetadata(t)))).filter(e=>null!==e);return 0===r.length?null:Math.max(...r)}async getTracks(e){e&&(e=eo(e));const t=(await this._getTrackBackings()).map(e=>this._wrapBackingAsTrack(e));return io(t,e)}async getVideoTracks(e){e&&(e=eo(e));const t=(await this.getTracks()).filter(e=>e.isVideoTrack());return io(t,e)}async getAudioTracks(e){e&&(e=eo(e));const t=(await this.getTracks()).filter(e=>e.isAudioTrack());return io(t,e)}async getPrimaryVideoTrack(e){e&&(e=eo(e));const t=to(e,{sortBy:async e=>[Zn((await e.getDisposition()).default),Zn(await e.hasPairableAudioTrack()),Zn(!(await e.hasOnlyKeyPackets())),Jn(await e.getBitrate())]});return(await this.getVideoTracks(t))[0]??null}async getPrimaryAudioTrack(e){e&&(e=eo(e));const t=await this.getPrimaryVideoTrack(),i=to(e,{sortBy:async e=>[Zn(!t||e.canBePairedWith(t)),Zn((await e.getDisposition()).default),Jn(await e.getBitrate())]});return(await this.getAudioTracks(i))[0]??null}async _getTrackBackings(){const e=await this._getDemuxer();return this._trackBackingsCache??(this._trackBackingsCache=await e.getTrackBackings())}_wrapBackingAsTrack(e){const t=this._backingToTrack.get(e);if(t)return t;const i="video"===e.getType()?new Qn(this,e):new Yn(this,e);return this._backingToTrack.set(e,i),i}async getMimeType(){return(await this._getDemuxer()).getMimeType()}async getMetadataTags(){return(await this._getDemuxer()).getMetadataTags()}dispose(){if(!this._disposed){this._disposed=!0;for(const e of this._sourceRefs)e.free();this._sourceRefs.length=0,this._demuxerPromise&&this._demuxerPromise.then(e=>e.dispose()).catch(()=>{})}}[Symbol.dispose](){this.dispose()}}class co extends Error{constructor(e="Input has an unsupported or unrecognizable format."){super(e),this.name="UnsupportedInputFormatError"}}class lo extends Error{constructor(e="Input has been disposed."){super(e),this.name="InputDisposedError"}}class uo{constructor(e){this.source=e}get fileSize(){const e=this.source._getFileSize();if(void 0===e)throw new Error("Reading file size too early; read required first.");return e}get fileSizeNonStrict(){return this.source._getFileSize()??null}requestSlice(e,t){if(this.source._disposed)throw new lo;if(e<0)return null;if(null!==this.fileSizeNonStrict&&e+t>this.fileSizeNonStrict)return null;if(0===t){const t=new Uint8Array(0);return new ho(t,l(t),0,e,e)}const i=e+t,r=this.source._read(e,i,0,Xa);return ae(r)?r.then(t=>t?new ho(t.bytes,t.view,t.offset,e,i):null):r?new ho(r.bytes,r.view,r.offset,e,i):null}requestSliceRange(e,t,r){if(this.source._disposed)throw new lo;if(e<0)return null;if(null!==this.fileSizeNonStrict)return this.requestSlice(e,N(this.fileSizeNonStrict-e,t,r));{const a=this.requestSlice(e,r),s=a=>a||(i(null!==this.fileSizeNonStrict),this.requestSlice(e,N(this.fileSizeNonStrict-e,t,r)));return ae(a)?a.then(s):s(a)}}requestEntireFile(){if(null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);return(async()=>{const e=[];let t=0;for(;;){if(1===e.length&&null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);let i=this.requestSliceRange(t,0,1024);if(ae(i)&&(i=await i),!i||0===i.length)break;const r=mo(i,i.length);e.push(r),t+=i.length}const i=new Uint8Array(t);let r=0;for(const a of e)i.set(a,r),r+=a.length;return new ho(i,l(i),0,0,t)})()}}class ho{constructor(e,t,i,r,a){this.bytes=e,this.view=t,this.offset=i,this.start=r,this.end=a,this.bufferPos=r-i}static tempFromBytes(e){return new ho(e,l(e),0,0,e.length)}get length(){return this.end-this.start}get filePos(){return this.offset+this.bufferPos}set filePos(e){this.bufferPos=e-this.offset}get remainingLength(){return Math.max(this.end-this.filePos,0)}skip(e){this.bufferPos+=e}slice(e,t=this.end-e){if(ethis.end)throw new RangeError("Slicing outside of original slice.");return new ho(this.bytes,this.view,this.offset,e,e+t)}}const fo=(e,t)=>{if(e.filePose.end)throw new RangeError(`Tried reading [${e.filePos}, ${e.filePos+t}), but slice is [${e.start}, ${e.end}). This is likely an internal error, please report it alongside the file that caused it.`)},mo=(e,t)=>{fo(e,t);const i=e.bytes.subarray(e.bufferPos,e.bufferPos+t);return e.bufferPos+=t,i},po=e=>(fo(e,1),e.view.getUint8(e.bufferPos++)),go=(e,t)=>{fo(e,2);const i=e.view.getUint16(e.bufferPos,t);return e.bufferPos+=2,i},ko=e=>{fo(e,2);const t=e.view.getUint16(e.bufferPos,!1);return e.bufferPos+=2,t},yo=e=>{fo(e,3);const t=A(e.view,e.bufferPos,!1);return e.bufferPos+=3,t},bo=e=>{fo(e,2);const t=e.view.getInt16(e.bufferPos,!1);return e.bufferPos+=2,t},wo=(e,t)=>{fo(e,4);const i=e.view.getUint32(e.bufferPos,t);return e.bufferPos+=4,i},To=e=>{fo(e,4);const t=e.view.getUint32(e.bufferPos,!1);return e.bufferPos+=4,t},So=e=>{fo(e,4);const t=e.view.getUint32(e.bufferPos,!0);return e.bufferPos+=4,t},vo=e=>{fo(e,4);const t=e.view.getInt32(e.bufferPos,!1);return e.bufferPos+=4,t},Po=(e,t)=>{let i,r;return t?(i=wo(e,!0),r=wo(e,!0)):(r=wo(e,!1),i=wo(e,!1)),4294967296*r+i},Io=e=>4294967296*To(e)+To(e),xo=e=>4294967296*vo(e)+To(e),Co=e=>{const t=So(e),i=(e=>{fo(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},Bo=e=>{fo(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},Eo=e=>{fo(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},_o=(e,t)=>{fo(e,t);let i="";for(let r=0;ru.decode(mo(e,t)).split("\n").map(e=>e.trim()).filter(e=>e.length>0&&!i?.ignore?.(e));var Fo,Ao,Do,Mo;(Ao=Fo||(Fo={}))[Ao.Unsynchronisation=128]="Unsynchronisation",Ao[Ao.ExtendedHeader=64]="ExtendedHeader",Ao[Ao.ExperimentalIndicator=32]="ExperimentalIndicator",Ao[Ao.Footer=16]="Footer",(Mo=Do||(Do={}))[Mo.ISO_8859_1=0]="ISO_8859_1",Mo[Mo.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",Mo[Mo.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",Mo[Mo.UTF_8=3]="UTF_8";const No=128,Oo=10,Lo=["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"],zo=(e,t)=>{var i;const r=e.filePos;t.raw??(t.raw={}),(i=t.raw).TAG??(i.TAG=mo(e,No-3)),e.filePos=r;const a=Uo(e,30);a&&(t.title??(t.title=a));const s=Uo(e,30);s&&(t.artist??(t.artist=s));const n=Uo(e,30);n&&(t.album??(t.album=n));const o=Uo(e,4),c=Number.parseInt(o,10);Number.isInteger(c)&&c>0&&(t.date??(t.date=new Date(String(c))));const l=mo(e,30);let u;if(0===l[28]&&0!==l[29]){const i=l[29];i>0&&(t.trackNumber??(t.trackNumber=i)),e.skip(-30),u=Uo(e,28),e.skip(2)}else e.skip(-30),u=Uo(e,30);u&&(t.comment??(t.comment=u));const d=po(e);d{const i=mo(e,t),r=se(i.indexOf(0),i.length),a=i.subarray(0,r);let s="";for(let n=0;n{const t=e.filePos,i=_o(e,3),r=po(e),a=po(e),s=po(e),n=To(e);if("ID3"!==i||255===r||255===a||0!==(2155905152&n))return e.filePos=t,null;let o=li(n);return s&Fo.Footer&&(o+=Oo),{majorVersion:r,revision:a,flags:s,size:o}},Wo=(e,t,i)=>{var r,a,s,n,o;if(![2,3,4].includes(t.majorVersion))return void be._warn(`Unsupported ID3v2 major version: ${t.majorVersion}`);const c=t.flags&Fo.Footer?t.size-Oo:t.size,l=mo(e,c),u=new Ho(t,l);if(t.flags&Fo.Unsynchronisation&&3===t.majorVersion&&u.ununsynchronizeAll(),t.flags&Fo.ExtendedHeader){const e=u.readU32();3===t.majorVersion?u.pos+=e:u.pos+=e-4}for(;u.pos<=u.bytes.length-u.frameHeaderSize();){const e=u.readId3V2Frame();if(!e)break;const c=u.pos,l=u.pos+e.size;let d=!1,h=!1,f=!1;if(3===t.majorVersion?(d=!!(64&e.flags),h=!!(128&e.flags)):4===t.majorVersion&&(d=!!(4&e.flags),h=!!(8&e.flags),f=!!(2&e.flags)||!!(t.flags&Fo.Unsynchronisation)),d)be._warn(`Skipping encrypted ID3v2 frame ${e.id}`),u.pos=l;else if(h)be._warn(`Skipping compressed ID3v2 frame ${e.id}`),u.pos=l;else{if(f&&u.ununsynchronizeRegion(u.pos,l),i.raw??(i.raw={}),"TXXX"===e.id){const e=(r=i.raw).TXXX??(r.TXXX={}),t=u.readId3V2TextEncoding(),a=u.readId3V2Text(t,l),s=u.readId3V2Text(t,l);e[a]??(e[a]=s)}else"T"===e.id[0]?(a=i.raw)[s=e.id]??(a[s]=u.readId3V2EncodingAndText(l)):(n=i.raw)[o=e.id]??(n[o]=u.readBytes(e.size));switch(u.pos=c,e.id){case"TIT2":case"TT2":i.title??(i.title=u.readId3V2EncodingAndText(l));break;case"TIT3":case"TT3":i.description??(i.description=u.readId3V2EncodingAndText(l));break;case"TPE1":case"TP1":i.artist??(i.artist=u.readId3V2EncodingAndText(l));break;case"TALB":case"TAL":i.album??(i.album=u.readId3V2EncodingAndText(l));break;case"TPE2":case"TP2":i.albumArtist??(i.albumArtist=u.readId3V2EncodingAndText(l));break;case"TRCK":case"TRK":{const e=u.readId3V2EncodingAndText(l).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(i.trackNumber??(i.trackNumber=t)),r&&Number.isInteger(r)&&r>0&&(i.tracksTotal??(i.tracksTotal=r))}break;case"TPOS":case"TPA":{const e=u.readId3V2EncodingAndText(l).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(i.discNumber??(i.discNumber=t)),r&&Number.isInteger(r)&&r>0&&(i.discsTotal??(i.discsTotal=r))}break;case"TCON":case"TCO":{const e=u.readId3V2EncodingAndText(l);let t=/^\((\d+)\)/.exec(e);if(t){const e=Number.parseInt(t[1]);if(void 0!==Lo[e]){i.genre??(i.genre=Lo[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==Lo[e]){i.genre??(i.genre=Lo[e]);break}}i.genre??(i.genre=e)}break;case"TDRC":case"TDAT":{const e=u.readId3V2EncodingAndText(l),t=new Date(e);Number.isNaN(t.getTime())||(i.date??(i.date=t))}break;case"TYER":case"TYE":{const e=u.readId3V2EncodingAndText(l),t=Number.parseInt(e,10);Number.isInteger(t)&&(i.date??(i.date=new Date(String(t))))}break;case"USLT":case"ULT":{const e=u.readU8();u.pos+=3,u.readId3V2Text(e,l),i.lyrics??(i.lyrics=u.readId3V2Text(e,l))}break;case"COMM":case"COM":{const e=u.readU8();u.pos+=3,u.readId3V2Text(e,l),i.comment??(i.comment=u.readId3V2Text(e,l))}break;case"APIC":case"PIC":{const e=u.readId3V2TextEncoding();let r;if(2===t.majorVersion){const e=u.readAscii(3);r="PNG"===e?"image/png":"JPG"===e?"image/jpeg":"image/*"}else r=u.readId3V2Text(e,l);const a=u.readU8(),s=u.readId3V2Text(e,l).trimEnd(),n=l-u.pos;if(n>=0){const e=u.readBytes(n);i.images||(i.images=[]),i.images.push({data:e,mimeType:r,kind:3===a?"coverFront":4===a?"coverBack":"unknown",description:s})}}break;default:u.pos+=e.size}u.pos=l}}};class Ho{constructor(e,t){this.header=e,this.bytes=t,this.pos=0,this.view=new DataView(t.buffer,t.byteOffset,t.byteLength)}frameHeaderSize(){return 2===this.header.majorVersion?6:10}ununsynchronizeAll(){const e=[];for(let t=0;t{const t=this.pos+e;if(t>this.bytes.length)return!1;if(t<=this.bytes.length-this.frameHeaderSize()){this.pos+=e;const t=this.readAscii(4);if("\0\0\0\0"!==t&&!/[0-9A-Z]{4}/.test(t))return!1}return!0};if(!s(i)){const e=4===this.header.majorVersion?t:li(t);s(e)&&(i=e)}return this.pos=a,{id:e,size:i,flags:r}}}readId3V2TextEncoding(){const e=this.readU8();if(e>3)throw new Error(`Unsupported text encoding: ${e}`);return e}readId3V2Text(e,t){const i=this.pos,r=this.readBytes(t-this.pos);switch(e){case Do.ISO_8859_1:{let e="";for(let t=0;t0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}if(254===r[0]&&255===r[1]){const e=new TextDecoder("utf-16be"),t=se(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}{const e=se(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),u.decode(r.subarray(0,e))}case Do.UTF_16_BE_NO_BOM:{const e=new TextDecoder("utf-16be"),t=se(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(0,t))}case Do.UTF_8:{const e=se(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),u.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class Vo{constructor(e){this.events=e,this.input=null,this.audioSink=null,this.audioIterator=null,this.audioContext=null,this.gainNode=null,this.audioContextStartTime=0,this.playbackTimeAtStart=0,this.latestScheduledEndTime=0,this.duration=Number.NaN,this.paused=!0,this.volume=.7,this.muted=!1,this.playbackRate=1,this.asyncId=0,this.queuedNodes=new Set}get currentTime(){return this.paused?this.playbackTimeAtStart:(this.audioContext.currentTime-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart}ensureAudioContext(e){if(this.audioContext)return;const t=window.AudioContext||window.webkitAudioContext;try{this.audioContext=new t({sampleRate:e})}catch{this.audioContext=new t}this.gainNode=this.audioContext.createGain(),this.gainNode.connect(this.audioContext.destination),this.updateGain()}updateGain(){if(!this.gainNode)return;const e=this.muted?0:this.volume;this.gainNode.gain.value=e*e}stopQueuedNodes(){this.queuedNodes.forEach(e=>e.stop()),this.queuedNodes.clear()}async stopIterator(){await(this.audioIterator?.return()),this.audioIterator=null}handleNoAudioTrack(){this.audioSink=null,this.ensureAudioContext()}async load(e,t){++this.asyncId,await this.stopIterator(),this.stopQueuedNodes(),this.paused=!0,this.playbackTimeAtStart=0,this.audioContextStartTime=0;const{input:i,audioTrack:r,duration:a}=e;return this.input=i,this.duration=a,r?null!==r.codec&&await r.canDecode()?(this.ensureAudioContext(r.sampleRate),this.audioSink=new Kn(r),void t?.()):(this.audioSink=null,this.ensureAudioContext(),void t?.()):(this.handleNoAudioTrack(),void t?.())}async runIterator(e){if(!this.audioSink)return;await this.stopIterator(),this.audioIterator=this.audioSink.buffers(this.currentTime);for(;;){if(e!==this.asyncId||this.paused)return;const i=[];let r=!1;try{for(let e=0;e<16;e++){const e=await this.audioIterator.next();if(e.done){r=!0;break}i.push(e.value)}}catch(t){console.error("Audio iterator error:",t),r=!0}if(e!==this.asyncId||this.paused)return;i.length>0&&"suspended"===this.audioContext.state&&(await this.audioContext.resume(),this.events.emit("canplay"),this.events.emit("playing"));for(const{buffer:e,timestamp:t}of i){const i=this.audioContext.createBufferSource();i.buffer=e,i.connect(this.gainNode),i.playbackRate.value=this.playbackRate;const r=this.audioContextStartTime+(t-this.playbackTimeAtStart)/this.playbackRate,a=(r+e.duration/this.playbackRate-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart;a>this.latestScheduledEndTime&&(this.latestScheduledEndTime=a),r>=this.audioContext.currentTime?i.start(r):i.start(this.audioContext.currentTime,(this.audioContext.currentTime-r)*this.playbackRate),this.queuedNodes.add(i),i.onended=()=>this.queuedNodes.delete(i)}if(r)break;await new Promise(e=>setTimeout(e,0));const a=1;for(;this.latestScheduledEndTime-this.currentTime>a;){if(e!==this.asyncId||this.paused)return;await new Promise(e=>setTimeout(e,50))}}}async play(){if(!this.paused)return;this.audioContext||this.ensureAudioContext(),"suspended"===this.audioContext.state&&await this.audioContext.resume(),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart,this.paused=!1;const e=++this.asyncId;this.runIterator(e)}pause(){this.paused||(this.playbackTimeAtStart=this.currentTime,this.paused=!0,this.stopIterator(),this.stopQueuedNodes())}async seek(e){this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart;const t=++this.asyncId;this.paused||this.runIterator(t)}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){if(e!==this.playbackRate&&(this.paused||(this.playbackTimeAtStart=this.currentTime,this.audioContextStartTime=this.audioContext.currentTime),this.playbackRate=e,!this.paused)){const e=++this.asyncId;this.runIterator(e)}}destroy(){this.asyncId++,this.pause(),this.audioContext?.close(),this.audioContext=null,this.input=null,this.audioSink=null}}async function jo(e){return await e.getAverageBitrate()??await e.getBitrate()??0}const Ko=/\.m3u8(?:$|[?#])/i;function Xo(e){return"string"===typeof e&&Ko.test(e)}function $o(e){const t=function(e){return"string"===typeof e?new rs(e):e instanceof Blob?new es(e):"undefined"!==typeof ReadableStream&&e instanceof ReadableStream?new ns(e):e??null}(e);return t?new oo({source:t,formats:Xo(e)?Xs:Ks}):null}class Go{constructor(){this.active=!0,this.input=null,this.timers=new Set,this.controller="undefined"===typeof AbortController?void 0:new AbortController,this.cancellation=new Promise(e=>{this.resolveCancellation=e})}get signal(){return this.controller?.signal}own(e){this.active?this.input=e:e.dispose()}defer(e){if(!this.active)return;const t=setTimeout(()=>{this.timers.delete(t),this.active&&e()},0);this.timers.add(t)}async wait(e,t){try{await Promise.race([e,this.cancellation,t>0?this.timeout(t):new Promise(()=>{})])}finally{void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0)}}timeout(e){return new Promise((t,i)=>{this.deadline=setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){const e=this.input;this.input=null,e?.dispose()}cancel(){if(this.active){this.active=!1;for(const e of this.timers)clearTimeout(e);this.timers.clear(),void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0),this.resolveCancellation(),this.controller?.abort(),this.disposeInput()}}}async function Qo({input:e,videoTrack:t,audioTrack:i}){const r=[t,i].filter(e=>null!==e),a=t||i,s=Boolean(a&&await a.isLive());let n=Number.NaN;return r.length>0&&(n=await e.getDurationFromMetadata(r,{skipLiveWait:!0}),null!==n||s||(n=await e.computeDuration(r,{skipLiveWait:!0}))),s?Number.POSITIVE_INFINITY:n??Number.NaN}class Yo{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:a=.12,dropLateFrames:s=!1,poster:n="",preflightRange:o=!1}){this.canvas=e,this.ctx=t,this.events=i,this.timeupdateInterval=r,this.avSyncTolerance=a,this.dropLateFrames=s,this.poster=n,this.preflightRange=o,this.input=null,this.videoSink=null,this.videoIterator=null,this.nextFrame=null,this.rafId=0,this.asyncId=0,this.width=0,this.height=0,this.duration=Number.NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1}async preflight(e,t,i){return async function(e,t,i,r,a=()=>!0){if(r?.aborted||!a())return!1;if(!t||"string"!==typeof e||Xo(e))return!0;try{const t=await fetch(e,r?{method:"HEAD",signal:r}:{method:"HEAD"});if(r?.aborted||!a())return!1;const s=t.headers.get("accept-ranges");return!(!s||"none"===s)||(i.emit("error",new Event("RangeNotSupported")),!1)}catch(s){return!(r?.aborted||!a())&&(console.warn("Preflight check failed:",s),!0)}}(e,this.preflightRange,this.events,t,i)}drawPoster(){if(!this.poster||this.posterDrawn)return;const e=new Image;e.onload=()=>{this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,this.ctx.drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e.src=this.poster}async stopIterator(){await(this.videoIterator?.return()),this.videoIterator=null}clear(){this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height)}async load(e,t){++this.asyncId,await this.stopIterator(),this.clear(),this.posterDrawn=!1;const{input:i,videoTrack:r,duration:a}=e;if(this.input=i,this.duration=a,!r)return this.handleNoVideoTrack(),void t?.();if(null===r.codec||!(await r.canDecode()))return this.handleNoVideoTrack(),void t?.();const s=await r.canBeTransparent();this.videoSink=new Wn(r,{poolSize:2,fit:"contain",alpha:s}),this.width=r.displayWidth,this.height=r.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,t?.(),await this.resetIterator(0)}handleNoVideoTrack(){this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster()}async resetIterator(e){if(await this.stopIterator(),!this.videoSink)return;this.videoIterator=this.videoSink.canvases(e);const t=(await this.videoIterator.next()).value??null,i=(await this.videoIterator.next()).value??null;this.nextFrame=i,t?this.ctx.drawImage(t.canvas,0,0):this.drawPoster()}async updateNextFrame(e){if(this.videoIterator&&!this.isFetching){this.isFetching=!0;try{for(;;){const t=(await this.videoIterator.next()).value??null;if(!t||e!==this.asyncId)return;const i=this.audioClock.currentTime,r=this.dropLateFrames?Math.max(.06,this.avSyncTolerance/Math.max(1,this.playbackRate)):0;if(!(this.dropLateFrames&&t.timestampi)return void(this.nextFrame=null)}}}finally{this.isFetching=!1}}}render(){if(!this.audioClock)return;const e=this.audioClock.currentTime,t=Date.now();if(t-this.lastTimeUpdate>=this.timeupdateInterval&&(this.events.emit("timeupdate"),this.lastTimeUpdate=t),Number.isFinite(this.duration)&&e>=this.duration)return this.stop(),this.stalled=!1,this.events.emit("ended"),this.events.emit("pause"),void this.events.emit("canplay");this.nextFrame&&this.nextFrame.timestamp<=e?(this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.ctx.drawImage(this.nextFrame.canvas,0,0),this.nextFrame=null,this.updateNextFrame(this.asyncId),this.stalled&&(this.events.emit("canplay"),this.events.emit("playing"),this.stalled=!1)):this.nextFrame||(this.updateNextFrame(this.asyncId),!this.nextFrame&&Number.isFinite(this.duration)&&ethis.render())}start(e){this.audioClock=e,this.asyncId++,this.stalled=!1,this.updateNextFrame(this.asyncId),this.rafId=requestAnimationFrame(()=>this.render())}stop(){cancelAnimationFrame(this.rafId)}async seek(e){this.asyncId++,await this.resetIterator(e)}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){this.asyncId++,this.stop(),this.stopIterator(),this.posterDrawn=!1,this.videoSink=null,this.input=null}}class Jo{constructor({canvas:e,ctx:t,events:i,option:r={}}){this.events=i,this.option=r,this.audio=new Vo(i),this.video=new Yo({canvas:e,ctx:t,events:i,timeupdateInterval:r.timeupdateInterval??250,avSyncTolerance:r.avSyncTolerance??.12,dropLateFrames:r.dropLateFrames??!1,poster:r.poster??"",preflightRange:r.preflightRange??!1}),this.paused=!0,this.ended=!1,this.readyState=0,this.networkState=0,this.error=null,this.seeking=!1,this.loadSeq=0,this.input=null,this.media=null,this.loadSession=null,this.destroyed=!1,i.addEventListener?.("ended",()=>{this.ended=!0,this.paused=!0})}async load(e){if(this.destroyed)return;const t=++this.loadSeq;if(this.loadSession?.cancel(),t!==this.loadSeq||this.destroyed)return;if(this.pause(),t!==this.loadSeq||this.destroyed)return;this.disposeInput();const i=new Go;this.loadSession=i,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,i.defer(()=>this.events.emit("waiting")),i.defer(()=>this.events.emit("loadstart"));const r=Number.isFinite(this.option.loadTimeout)?this.option.loadTimeout:0;try{await i.wait(this.performLoad(e,t,i),r)}catch(a){if(t!==this.loadSeq)return;const e=++this.loadSeq;if(i.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.error={code:4,message:a.message},this.networkState=3,this.events.emit("error")}}async performLoad(e,t,i=this.loadSession){if(!(await this.video.preflight(e,i?.signal,()=>t===this.loadSeq))||t!==this.loadSeq)return;const r=$o(e);if(!r)return this.video.handleNoVideoTrack(),void this.audio.handleNoAudioTrack();i.own(r);const a=await async function(e,t){const i=await e.getPrimaryVideoTrack(),r=i?await i.getPrimaryPairableAudioTrack():await e.getPrimaryAudioTrack(),a=await Qo({input:e,videoTrack:i,audioTrack:r}),s=i||r,n=Xo(t);return{input:e,videoTrack:i,audioTrack:r,duration:a,isLive:!Number.isFinite(a)&&Boolean(s&&await s.isLive()),isHls:n,videoMode:n?"auto":"manual",audioMode:n?"auto":"manual"}}(r,e);if(t!==this.loadSeq)return;this.input=r,this.media=a;let s=!a.videoTrack,n=!a.audioTrack;const o=()=>{s&&n&&(this.readyState=1,this.events.emit("loadedmetadata"),this.events.emit("durationchange"),this.events.emit("progress"))};try{if(await Promise.all([this.video.load(a,()=>{t===this.loadSeq&&(s=!0,o())}),this.audio.load(a,()=>{t===this.loadSeq&&(n=!0,o())})]),t!==this.loadSeq)return;this.readyState=4,this.networkState=1,this.events.emit("loadeddata"),this.events.emit("canplay"),this.events.emit("canplaythrough"),this.events.emit("progress")}catch(c){if(t!==this.loadSeq)return;throw console.error("MediaBunny load error:",c),c}}createTimeout(e){return new Promise((t,i)=>{setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){this.loadSession?.disposeInput(),this.input=null,this.media=null}async replaceTracks({videoTrack:e,audioTrack:t,videoMode:i,audioMode:r}){if(!this.media)return;const a={...this.media,videoTrack:e,audioTrack:t,videoMode:i,audioMode:r},s=!this.paused,n=this.currentTime;this.pause(),this.ended=!1,this.seeking=!0,this.events.emit("seeking"),this.events.emit("waiting"),a.duration=await Qo(a),this.media=a,await Promise.all([this.video.load(a),this.audio.load(a)]),await Promise.all([this.video.seek(n),this.audio.seek(n)]),this.readyState=4,this.networkState=1,this.seeking=!1,this.events.emit("loadedmetadata"),this.events.emit("durationchange"),this.events.emit("progress"),this.events.emit("loadeddata"),this.events.emit("canplay"),this.events.emit("canplaythrough"),this.events.emit("seeked"),s&&await this.play()}async selectHlsQuality(e){if(!this.media?.isHls||!this.input)return;const t=await this.input.getVideoTracks(),i="auto"===e?await this.input.getPrimaryVideoTrack():t.find(t=>t.id===e)??this.media.videoTrack;if(!i)return;let r=this.media.audioTrack,a=this.media.audioMode;r&&i.canBePairedWith(r)||(r=await i.getPrimaryPairableAudioTrack(),a="auto"),await this.replaceTracks({videoTrack:i,audioTrack:r,videoMode:"auto"===e?"auto":"manual",audioMode:a})}async selectHlsAudio(e){if(!this.media?.isHls||!this.input)return;const t=await this.input.getAudioTracks(),i="auto"===e?this.media.videoTrack?await this.media.videoTrack.getPrimaryPairableAudioTrack():await this.input.getPrimaryAudioTrack():t.find(t=>t.id===e)??this.media.audioTrack;if(!i)return;let r=this.media.videoTrack,a=this.media.videoMode;r&&i.canBePairedWith(r)||(r=await i.getPrimaryPairableVideoTrack(),a="auto"),await this.replaceTracks({videoTrack:r,audioTrack:i,videoMode:a,audioMode:"auto"===e?"auto":"manual"})}getHlsState(){return async function(e){if(!e?.isHls||!e.input)return null;const[t,i]=await Promise.all([e.input.getVideoTracks(),e.videoTrack?e.videoTrack.getPairableAudioTracks():[]]),[r,a]=await Promise.all([Promise.all(t.map(async(e,t)=>({id:e.id,track:e,index:t,name:await e.getName(),height:await e.getDisplayHeight(),bitrate:await jo(e)}))),Promise.all(i.map(async(e,t)=>{const i=await e.getName(),r=await e.getLanguageCode();return{id:e.id,track:e,index:t,name:i,lang:r,language:r,bitrate:await jo(e)}}))]);return{levels:r,audios:a,currentLevel:e.videoTrack?r.find(t=>t.id===e.videoTrack?.id)??null:null,currentAudio:e.audioTrack?a.find(t=>t.id===e.audioTrack?.id)??null:null,videoMode:e.videoMode??"auto",audioMode:e.audioMode??"auto"}}(this.media)}async play(){this.paused&&(this.ended&&(this.ended=!1,await this.seek(0)),this.paused=!1,await this.audio.play(),this.video.start(this.audio),this.events.emit("play"),this.events.emit("playing"))}pause(){this.paused||(this.paused=!0,this.audio.pause(),this.video.stop(),this.events.emit("pause"))}async seek(e){const t=!this.paused;this.ended=!1,this.seeking=!0,this.events.emit("seeking"),this.events.emit("waiting"),this.pause(),await Promise.all([this.audio.seek(e),this.video.seek(e)]),this.seeking=!1,this.events.emit("seeked"),t&&!this.ended&&await this.play()}setVolume(e,t){this.audio.setVolume(e,t)}setPlaybackRate(e){this.audio.setPlaybackRate(e),this.video.setPlaybackRate(e)}destroy(){this.destroyed||(this.destroyed=!0,this.loadSeq++,this.loadSession?.cancel(),this.pause(),this.disposeInput(),this.audio.destroy(),this.video.destroy())}get currentTime(){return this.audio.currentTime}get duration(){return this.media?.duration??this.audio.duration??this.video.duration}get videoWidth(){return this.video.width}get videoHeight(){return this.video.height}}class Zo{constructor({art:e,canvas:i,ctx:r,option:a}){this.art=e,this.canvas=i,this.option=a,this.events=new t,this.engine=new Jo({canvas:i,ctx:r,events:this.events,option:a}),this._src=null,this._volume=a.volume??.7,this._muted=!!a.muted,this._playbackRate=1,this.engine.setVolume(this._volume,this._muted),this.setupEventForwarding(),a.source?this.src=a.source:e.option?.url&&(this.src=e.option.url)}setupEventForwarding(){const{events:e}=this.art.constructor.config;e.forEach(e=>{this.events.addEventListener(e,e=>{this.art.emit(`video:${e.type}`,e)})})}addEventListener(e,t){this.events.addEventListener(e,t)}removeEventListener(e,t){this.events.removeEventListener(e,t)}get src(){return this._src}set src(e){this._src=e,e&&this.engine.load(e)}get currentSrc(){return this._src}get currentTime(){return this.engine.currentTime}set currentTime(e){this.engine.seek(Number(e)||0)}get duration(){return this.engine.duration}get buffered(){return this.createTimeRanges(0,this.engine.duration)}get played(){return this.createTimeRanges(0,this.engine.currentTime)}get seekable(){return this.createTimeRanges(0,this.engine.duration)}createTimeRanges(e,t){const i=this.engine.duration;return!i||Number.isNaN(i)||t<=0?{length:0,start:()=>0,end:()=>0}:{length:1,start:()=>e,end:()=>t}}get paused(){return this.engine.paused}get playing(){return!this.engine.paused&&!this.engine.ended}get ended(){return this.engine.ended}get seeking(){return this.engine.seeking}get readyState(){return this.engine.readyState}get networkState(){return this.engine.networkState}get error(){return this.engine.error}get playbackRate(){return this._playbackRate}set playbackRate(e){const t=Number(e);Number.isNaN(t)||t<=0||(this._playbackRate=t,this.engine.setPlaybackRate(t),this.events.emit("ratechange"))}get volume(){return this._volume}set volume(e){this._volume=function(e,t,i){return Math.max(t,Math.min(i,Number(e)||0))}(e,0,1),this._muted=!1,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}get muted(){return this._muted}set muted(e){this._muted=!!e,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}play(){return this.engine.play()}pause(){this.engine.pause()}load(){this._src&&this.engine.load(this._src)}getM3u8State(){return this.engine.getHlsState()}switchM3u8Quality(e){return this.engine.selectHlsQuality(e)}switchM3u8Audio(e){return this.engine.selectHlsAudio(e)}get videoWidth(){return this.engine.videoWidth}get videoHeight(){return this.engine.videoHeight}get poster(){return this.option.poster||""}set poster(e){this.option.poster=e}get autoplay(){return this.option.autoplay||!1}set autoplay(e){}get loop(){return this.option.loop||!1}set loop(e){}get controls(){return!1}set controls(e){}get playsInline(){return!0}set playsInline(e){}get crossOrigin(){return this.option.crossOrigin||""}set crossOrigin(e){}get preload(){return"auto"}set preload(e){}get defaultMuted(){return!1}set defaultMuted(e){}get defaultPlaybackRate(){return 1}set defaultPlaybackRate(e){}canPlayType(e){return"maybe"}getBoundingClientRect(){return this.canvas.getBoundingClientRect()}requestVideoFrameCallback(e){return requestAnimationFrame(t=>{e(t,{presentationTime:this.engine.currentTime,expectedDisplayTime:t+16.6,width:this.engine.videoWidth,height:this.engine.videoHeight,mediaTime:this.engine.currentTime,presentedFrames:0,processingDuration:0,captureTime:t,receiveTime:t,rtpTimestamp:0})})}cancelVideoFrameCallback(e){cancelAnimationFrame(e)}setAttribute(e,t){"src"===e?this.src=t:"autoplay"===e?this.autoplay=t:"loop"===e?this.loop=t:"muted"===e?this.muted=!0:this.canvas.setAttribute(e,t)}destroy(){this.engine.destroy()}}return function(t={}){return i=>{const{constructor:r}=i,{createElement:a}=r.utils,s=a("canvas"),n=s.getContext("2d"),o=new Zo({art:i,canvas:s,ctx:n,option:t});i.mediabunny=o;const c={};for(const e in s)"function"===typeof s[e]&&(c[e]=s[e].bind(s));const l=new Set([...Object.getOwnPropertyNames(o),...Object.getOwnPropertyNames(Object.getPrototypeOf(o))]);for(const e of l)"constructor"!==e&&(e in s||Object.defineProperty(s,e,{get(){const t=o[e];return"function"===typeof t?t.bind(o):t},set(t){o[e]=t},configurable:!0,enumerable:!0}));for(const e in c)s[e]=(...t)=>c[e](...t);function u(){const e=i.template?.$player;e&&!i.option.autoSize&&Object.assign(s.style,{width:"100%",height:"100%",objectFit:"contain"})}return i.on("resize",u),i.on("video:loadedmetadata",u),function({art:t,shim:i,option:r}){if(r.m3u8)return t.on("video:loadedmetadata",d),t.on("restart",d),{update:d};function a(e){t.controls.cache.has(e)&&t.controls.remove(e)}function s(e){t.setting.find(e)&&t.setting.remove(e)}function n(){a("mediabunny-quality"),s("mediabunny-quality")}function o(){a("mediabunny-audio"),s("mediabunny-audio")}function c(e={}){return e.control||e.setting}async function l(a){const s=r.m3u8?.quality||{};if(!c(s)||!a?.levels.length)return void n();const o=s.auto||"Auto",l=s.title||"Quality",u=s.getName||(e=>e.name||`${e.height}P`),h=a.currentLevel?u(a.currentLevel):o,f=e(a.levels.map(e=>({html:u(e),value:e.id,default:a.currentLevel?.id===e.id})),"html").sort((e,t)=>{const i=a.levels.find(t=>t.id===e.value),r=a.levels.find(e=>e.id===t.value);return(r?.height||0)-(i?.height||0)});f.push({html:o,value:"auto",default:!a.currentLevel});const m=async e=>(await i.switchM3u8Quality(e.value),t.notice.show=`${l}: ${e.html}`,await d(),e.html);s.control&&t.controls.update({name:"mediabunny-quality",position:"right",html:h,style:{padding:"0 10px"},selector:f,onSelect:m}),s.setting&&t.setting.update({name:"mediabunny-quality",tooltip:h,html:l,icon:'',width:200,selector:f,onSelect:m})}async function u(a){const s=r.m3u8?.audio||{};if(!c(s)||!a?.audios.length||a.audios.length<2)return void o();const n=s.auto||"Auto",l=s.title||"Audio",u=s.getName||(e=>e.name||e.lang||e.language),h=a.currentAudio?u(a.currentAudio):n,f=e(a.audios.map(e=>({html:u(e),value:e.id,default:a.currentAudio?.id===e.id})),"html");f.push({html:n,value:"auto",default:!a.currentAudio});const m=async e=>(await i.switchM3u8Audio(e.value),t.notice.show=`${l}: ${e.html}`,await d(),e.html);s.control&&t.controls.update({name:"mediabunny-audio",position:"right",html:h,style:{padding:"0 10px"},selector:f,onSelect:m}),s.setting&&t.setting.update({name:"mediabunny-audio",tooltip:h,html:l,icon:'',width:200,selector:f,onSelect:m})}async function d(){const e=await i.getM3u8State();if(!e)return n(),void o();await Promise.all([l(e),u(e)])}}({art:i,shim:o,option:t}),i.on("destroy",()=>{delete i.mediabunny,o.destroy()}),s}}}); +!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerProxyMediabunny=t(),define(function(){return e.artplayerProxyMediabunny})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerProxyMediabunny=t()}(this,function(){"use strict";var e,t=e=>{throw TypeError(e)},i=(e,i,r)=>i.has(e)||t("Cannot "+r),r=(e,t,r)=>(i(e,t,"read from private field"),r?r.call(e):t.get(e));function a(e,t){const i=new Map;return e.filter(e=>{const r=e[t];return void 0===r||!i.has(r)&&i.set(r,1)})}class s{constructor(){var i,r,a;i=this,a=!1,(r=e).has(i)?t("Cannot add the same private member more than once"):r instanceof WeakSet?r.add(i):r.set(i,a),this.listeners=new Map}addEventListener(t,i){r(this,e)||(this.listeners.has(t)||this.listeners.set(t,[]),this.listeners.get(t)?.push(i))}removeEventListener(e,t){const i=this.listeners.get(e);if(!i)return;const r=i.indexOf(t);r>=0&&i.splice(r,1)}emit(t,i){if(r(this,e))return;const a=Object.assign(new Event(t),{detail:i});this.listeners.get(t)?.forEach(t=>{r(this,e)||t(a)})}destroy(){var t,r,a,s;a=!0,i(t=this,r=e,"write to private field"),s?s.call(t,a):r.set(t,a),this.listeners.clear()}}function n(e){if(!e)throw new Error("Assertion failed.")}e=new WeakMap;const o=e=>{const t=(e%360+360)%360;if(0===t||90===t||180===t||270===t)return t;throw new Error(`Invalid rotation ${e}.`)},c=e=>e&&e[e.length-1],l=e=>{let t=0;for(;0===e.readBits(1)&&t<32;)t++;if(t>=32)throw new Error("Invalid exponential-Golomb code.");return(1<{const i=t+1,r=Math.floor(Math.log2(i));e.writeBits(r,0),e.writeBits(1,1),e.writeBits(r,i-2**r)},d=e=>{const t=l(e);return 0===(1&t)?-(t>>1):t+1>>1},h=e=>e.constructor===Uint8Array?e:ArrayBuffer.isView(e)?new Uint8Array(e.buffer,e.byteOffset,e.byteLength):new Uint8Array(e),f=e=>e.constructor===DataView?e:ArrayBuffer.isView(e)?new DataView(e.buffer,e.byteOffset,e.byteLength):new DataView(e),m=new TextDecoder,p=e=>Object.fromEntries(Object.entries(e).map(([e,t])=>[t,e])),g={bt709:1,bt470bg:5,smpte170m:6,bt2020:9,smpte432:12},k=p(g),y={bt709:1,smpte170m:6,linear:8,"iec61966-2-1":13,pq:16,hlg:18},b=p(y),w={rgb:0,bt709:1,bt470bg:5,smpte170m:6,"bt2020-ncl":9},T=p(w),S=e=>!!e&&!!e.primaries&&!!e.transfer&&!!e.matrix&&void 0!==e.fullRange,v={primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0},P=e=>e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e);class I{constructor(){this.currentPromise=Promise.resolve(),this.pending=0}async acquire(){let e;const t=new Promise(t=>{let i=!1;e=()=>{i||(t(),this.pending--,i=!0)}}),i=this.currentPromise;return this.currentPromise=t,this.pending++,await i,e}}const x=/^[0-9a-fA-F]+$/,C=e=>[...e].map(e=>e.toString(16).padStart(2,"0")).join(""),B=e=>(e=(e=(e=(e=(e=e>>1&1431655765|(1431655765&e)<<1)>>2&858993459|(858993459&e)<<2)>>4&252645135|(252645135&e)<<4)>>8&16711935|(16711935&e)<<8)>>16&65535|(65535&e)<<16)>>>0,E=(e,t,i)=>{let r=0,a=e.length-1,s=-1;for(;r<=a;){const n=r+a>>1,o=i(e[n]);o===t?(s=n,a=n-1):o{let r=0,a=e.length-1,s=-1;for(;r<=a;){const n=r+(a-r+1)/2|0;i(e[n])<=t?(s=n,r=n+1):a=n-1}return s},R=(e,t,i)=>{const r=_(e,i(t),i);e.splice(r+1,0,t)},F=()=>{let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}},A=(e,t)=>{const i=e.indexOf(t);-1!==i&&e.splice(i,1)},D=(e,t)=>{for(let i=e.length-1;i>=0;i--)if(t(e[i]))return e[i]},M=(e,t)=>{for(let i=e.length-1;i>=0;i--)if(t(e[i]))return i;return-1},N=e=>{throw new Error(`Unexpected value: ${e}`)},O=(e,t,i)=>{const r=e.getUint8(t),a=e.getUint8(t+1),s=e.getUint8(t+2);return i?r|a<<8|s<<16:r<<16|a<<8|s},L=(e,t,i,r)=>{i>>>=0,i&=16777215,e.setUint8(t,i>>>16&255),e.setUint8(t+1,i>>>8&255),e.setUint8(t+2,255&i)},z=(e,t)=>({async next(){const i=await e.next();return i.done?{value:void 0,done:!0}:{value:t(i.value),done:!1}},return:()=>e.return(),throw:t=>e.throw(t),[Symbol.asyncIterator](){return this}}),U=(e,t,i)=>Math.max(t,Math.min(i,e)),q="und",W=e=>{const t=Math.round(e);return Math.abs(e/t-1)<10*Number.EPSILON?t:e},H=(e,t)=>Math.round(e/t)*t,V=(e,t)=>Math.round(e*t)/t,j=(e,t)=>Math.floor(e/t)*t,K=e=>{let t=0;for(;0!==e;)e&=e-1,t++;return t},X=/^[a-z]{3}$/,$=e=>X.test(e),G=1e6*(1+Number.EPSILON),Q=(e,t)=>{const i={...e,...t};if(e.headers||t.headers){const r=e.headers?Y(e.headers):{},a=t.headers?Y(t.headers):{},s={...r};Object.entries(a).forEach(([e,t])=>{const i=Object.keys(s).find(t=>t.toLowerCase()===e.toLowerCase());i&&delete s[i],s[e]=t}),i.headers=s}return i},Y=e=>{if(e instanceof Headers){const t={};return e.forEach((e,i)=>{t[i]=e}),t}if(Array.isArray(e)){const t={};return e.forEach(([e,i])=>{t[e]=i}),t}return e},J=async(e,t,i,r,a)=>{let s=0;for(;;)try{return await e(t,i)}catch(n){if(a())throw n;s++;const e=r(s,n,t);if(null===e)throw n;if(ve._error("Retrying failed fetch. Error:",n),!Number.isFinite(e)||e<0)throw new TypeError("Retry delay must be a non-negative finite number.");if(e>0&&await be(1e3*e),a())throw n}};class Z{constructor(){this.currentPromise=Promise.resolve()}call(e){return this.currentPromise=this.currentPromise.then(e)}}let ee=null;const te=()=>null!==ee?ee:ee=!("undefined"===typeof navigator||!(navigator.vendor?.match(/apple/i)||/AppleWebKit/.test(navigator.userAgent)&&!/Chrome/.test(navigator.userAgent)||/\b(iPad|iPhone|iPod)\b/.test(navigator.userAgent)));let ie=null;const re=()=>null!==ie?ie:ie="undefined"!==typeof navigator&&navigator.userAgent?.includes("Firefox");let ae=null;const se=()=>null!==ae?ae:ae=!("undefined"===typeof navigator||!navigator.vendor?.includes("Google Inc")&&!/Chrome/.test(navigator.userAgent)),ne=e=>"undefined"===typeof globalThis.isSecureContext||globalThis.isSecureContext?`${e} is not available in this environment.`:`${e} is not available in this environment; this may be because this page is running in an insecure context. Try serving your page over HTTPS or use localhost.`,oe=(async()=>{})().constructor,ce=e=>e instanceof oe||e instanceof Promise||"function"===typeof e?.then,le=(e,t)=>-1!==e?e:t,ue=(e,t,i,r)=>e<=r&&i<=t,de=e=>{const t=atob(e),i=new Uint8Array(t.length);for(let r=0;r{Symbol.dispose??(Symbol.dispose=Symbol("Symbol.dispose"))},fe=e=>"number"===typeof e&&!Number.isNaN(e),me=(e,t)=>{if(t.includes("://"))return t;if(e.includes("://")){const t=e.indexOf("?");-1!==t&&(e=e.slice(0,t))}let i;if(t.startsWith("/")){const r=e.indexOf("://");if(-1===r)i=t;else{const a=e.indexOf("/",r+3);i=-1===a?e+t:e.slice(0,a)+t}}else{const r=e.lastIndexOf("/");i=-1===r?t:e.slice(0,r+1)+t}let r="";const a=i.indexOf("://");if(-1!==a){const e=i.indexOf("/",a+3);-1!==e&&(r=i.slice(0,e),i=i.slice(e))}const s=i.split("/"),n=[];for(const o of s)".."===o?n.pop():"."!==o&&n.push(o);return r+n.join("/")},pe=(e,t)=>{let i=0;for(let r=0;r{let i=-1,r=1/0;for(let a=0;a{n(Number.isInteger(e.num)),n(Number.isInteger(e.den)),n(0!==e.den);let t=Math.abs(e.num),i=Math.abs(e.den);for(;0!==i;){const e=t%i;t=i,i=e}const r=t||1;return{num:e.num/r,den:e.den/r}},ye=(e,t)=>{if("object"!==typeof e||!e)throw new TypeError(`${t} must be an object.`);if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(`${t}.left must be a non-negative integer.`);if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(`${t}.top must be a non-negative integer.`);if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(`${t}.width must be a non-negative integer.`);if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(`${t}.height must be a non-negative integer.`)},be=e=>new Promise(t=>setTimeout(t,e));class we{constructor(){this._listeners=new Map}on(e,t,i){this._listeners.has(e)||this._listeners.set(e,new Set);const r={fn:t,once:i?.once??!1};return this._listeners.get(e).add(r),()=>{this._listeners.get(e)?.delete(r)}}_emit(...e){const[t,i]=e,r=this._listeners.get(t);if(r)for(const s of r){try{s.fn(i)}catch(a){console.error(a)}s.once&&r.delete(s)}}}var Te,Se;(Se=Te||(Te={}))[Se.Silent=0]="Silent",Se[Se.Errors=1]="Errors",Se[Se.Warnings=2]="Warnings",Se[Se.Info=3]="Info";class ve{constructor(){}static get level(){return ve._level}static set level(e){if(e!==Te.Silent&&e!==Te.Errors&&e!==Te.Warnings&&e!==Te.Info)throw new TypeError("Invalid log level. Use one of the values of the LogLevel enum.");ve._level=e}static get _emitter(){return ve._emitterInstance??(ve._emitterInstance=new we)}static on(e,t,i){return ve._emitter.on(e,t,i)}static _error(...e){ve._emitter._emit("error",e),ve._level>=Te.Errors&&console.error(...e)}static _warn(...e){ve._emitter._emit("warn",e),ve._level>=Te.Warnings&&console.warn(...e)}static _info(...e){ve._emitter._emit("info",e),ve._level>=Te.Info&&console.info(...e)}}ve._level=Te.Info,ve._emitterInstance=null;class Pe{constructor(e,t){if(this.data=e,this.mimeType=t,!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("string"!==typeof t)throw new TypeError("mimeType must be a string.")}}class Ie{constructor(e,t,i,r){if(this.data=e,this.mimeType=t,this.name=i,this.description=r,!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if(void 0!==t&&"string"!==typeof t)throw new TypeError("mimeType, when provided, must be a string.");if(void 0!==i&&"string"!==typeof i)throw new TypeError("name, when provided, must be a string.");if(void 0!==r&&"string"!==typeof r)throw new TypeError("description, when provided, must be a string.")}}const xe={default:!0,primary:!0,forced:!1,original:!1,commentary:!1,hearingImpaired:!1,visuallyImpaired:!1};class Ce{constructor(e){this.bytes=e,this.pos=0}seekToByte(e){this.pos=8*e}readBit(){const e=Math.floor(this.pos/8),t=this.bytes[e]??0,i=7-(7&this.pos),r=(t&1<>i;return this.pos++,r}readBits(e){if(1===e)return this.readBit();let t=0;for(let i=0;i>i-r-1<0&&this.writeBits(r,t.readBits(r))}readAlignedByte(){if(this.pos%8!==0)throw new Error("Bitstream is not byte-aligned.");const e=this.pos/8,t=this.bytes[e]??0;return this.pos+=8,t}skipBits(e){this.pos+=e}getBitsLeft(){return 8*this.bytes.length-this.pos}clone(){const e=new Ce(this.bytes);return e.pos=this.pos,e}}const Be=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350],Ee=[-1,1,2,3,4,5,6,8],_e=e=>{if(!e||e.byteLength<2)throw new TypeError("AAC description must be at least 2 bytes long.");const t=new Ce(e),i=Re(t),{frequencyIndex:r,sampleRate:a}=Fe(t),s=t.readBits(4);let n=null;s>=1&&s<=7&&(n=Ee[s]);let o=i,c=!1,l=a;if(5===i||29===i)c=29===i,l=Fe(t).sampleRate,o=Re(t),22===o&&t.skipBits(4);else for(;t.getBitsLeft()>15;){const e=t.pos;if(695===t.readBits(11)){5===Re(t)&&t.readBits(1)&&(l=Fe(t).sampleRate,t.getBitsLeft()>11&&1352===t.readBits(11)&&(c=!!t.readBits(1)));break}t.pos=e+1}return null!==n&&n>1&&(c=!1),{objectType:i,coreObjectType:o,frequencyIndex:r,channelConfiguration:s,outputSampleRate:l,outputNumberOfChannels:c&&1===n?2:n}},Re=e=>{const t=e.readBits(5);return 31===t?32+e.readBits(6):t},Fe=e=>{const t=e.readBits(4);return 15===t?{frequencyIndex:t,sampleRate:e.readBits(24)}:{frequencyIndex:t,sampleRate:t=e.length-2)break;t=r;let a=0;t+3i&&(yield{offset:i,length:t-i}),i=t+a,t=i):t++}-1!==i&&i{if(t.description){const i=3&h(t.description)[4];return Ue(e,i+1)}return ze(e)},We=e=>31&e,He=e=>{const t=[],i=e.length;for(let r=0;r{const t=e.reduce((e,t)=>e+Ve.byteLength+t.byteLength,0),i=new Uint8Array(t);let r=0;for(const a of e)i.set(Ve,r),r+=Ve.byteLength,i.set(a,r),r+=a.byteLength;return i},Ke=(e,t)=>{const i=e.reduce((e,i)=>e+t+i.byteLength,0),r=new Uint8Array(i);let a=0;for(const s of e){const e=new DataView(r.buffer,r.byteOffset,r.byteLength);switch(t){case 1:e.setUint8(a,s.byteLength);break;case 2:e.setUint16(a,s.byteLength,!1);break;case 3:L(e,a,s.byteLength);break;case 4:e.setUint32(a,s.byteLength,!1)}a+=t,r.set(s,a),a+=s.byteLength}return r},Xe=e=>{try{const t=[],i=[],r=[];for(const n of ze(e)){const a=e.subarray(n.offset,n.offset+n.length),s=We(a[0]);s===Me.SPS?t.push(a):s===Me.PPS?i.push(a):s===Me.SPS_EXT&&r.push(a)}if(0===t.length)return null;if(0===i.length)return null;const a=t[0],s=Ye(a);n(null!==s);const o=100===s.profileIdc||110===s.profileIdc||122===s.profileIdc||144===s.profileIdc;return{configurationVersion:1,avcProfileIndication:s.profileIdc,profileCompatibility:s.constraintFlags,avcLevelIndication:s.levelIdc,lengthSizeMinusOne:3,sequenceParameterSets:t,pictureParameterSets:i,chromaFormat:o?s.chromaFormatIdc:null,bitDepthLumaMinus8:o?s.bitDepthLumaMinus8:null,bitDepthChromaMinus8:o?s.bitDepthChromaMinus8:null,sequenceParameterSetExt:o?r:null}}catch(t){return ve._error("Error building AVC Decoder Configuration Record:",t),null}},$e=e=>{const t=[];t.push(e.configurationVersion),t.push(e.avcProfileIndication),t.push(e.profileCompatibility),t.push(e.avcLevelIndication),t.push(252|3&e.lengthSizeMinusOne),t.push(224|31&e.sequenceParameterSets.length);for(const i of e.sequenceParameterSets){const e=i.byteLength;t.push(e>>8),t.push(255&e);for(let r=0;r>8),t.push(255&e);for(let r=0;r>8),t.push(255&e);for(let r=0;r{try{const t=f(e);let i=0;const r=t.getUint8(i++),a=t.getUint8(i++),s=t.getUint8(i++),n=t.getUint8(i++),o=3&t.getUint8(i++),c=31&t.getUint8(i++),l=[];for(let f=0;f{try{const t=He(e),i=new Ce(t);i.skipBits(1),i.skipBits(2);if(7!==i.readBits(5))return null;const r=i.readAlignedByte(),a=i.readAlignedByte(),s=i.readAlignedByte();l(i);let o=1,u=0,h=0,f=0;if(100===r||110===r||122===r||244===r||44===r||83===r||86===r||118===r||128===r){o=l(i),3===o&&(f=i.readBits(1)),u=l(i),h=l(i),i.skipBits(1);if(i.readBits(1))for(let e=0;e<(3!==o?8:12);e++){if(i.readBits(1)){const t=e<6?16:64;let r=8,a=8;for(let e=0;ee.level>=s)??c($t),r=Math.min(Math.floor(i.maxDpbMbs/(e*t)),16);C=r,B=r}else C=0,B=0}return n(null!==B),{emulationUnpreventedBytes:t,profileIdc:r,constraintFlags:a,levelIdc:s,frameMbsOnlyFlag:T,chromaFormatIdc:o,bitDepthLumaMinus8:u,bitDepthChromaMinus8:h,codedWidth:k,codedHeight:y,displayWidth:b,displayHeight:w,pixelAspectRatio:x,colourPrimaries:S,matrixCoefficients:P,transferCharacteristics:v,fullRangeFlag:I,numReorderFrames:C,maxDecFrameBuffering:B,vuiParametersFlagBitOffset:R,bitstreamRestrictionFlagBitOffset:E,bitstreamRestrictionFlag:_}}catch(t){return ve._error("Error parsing AVC SPS:",t),null}},Je=e=>{const t=l(e);e.skipBits(4),e.skipBits(4);for(let i=0;i<=t;i++)l(e),l(e),e.skipBits(1);e.skipBits(5),e.skipBits(5),e.skipBits(5),e.skipBits(5)},Ze=e=>{n(1!==e.bitstreamRestrictionFlag);const t=new Uint8Array(e.emulationUnpreventedBytes.byteLength+64),i=new Ce(e.emulationUnpreventedBytes),r=new Ce(t);null===e.bitstreamRestrictionFlag?(r.copyBits(e.vuiParametersFlagBitOffset,i),r.writeBits(1,1),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0)):(n(null!==e.bitstreamRestrictionFlagBitOffset),r.copyBits(e.bitstreamRestrictionFlagBitOffset,i)),r.writeBits(1,1),r.writeBits(1,1),u(r,2),u(r,1),u(r,16),u(r,16),u(r,e.numReorderFrames),u(r,e.maxDecFrameBuffering),r.writeBits(1,1),r.writeBits((8-r.pos%8)%8,0);const a=r.pos/8;return n(Number.isInteger(a)),(e=>{const t=[];let i=0;for(const r of e)2===i&&r<=3&&(t.push(3),i=0),t.push(r),i=0===r?i+1:0;return new Uint8Array(t)})(t.subarray(0,a))},et=(e,t)=>{if(t.description){const i=3&h(t.description)[21];return Ue(e,i+1)}return ze(e)},tt=e=>e>>1&63,it=e=>{try{const t=new Ce(He(e));t.skipBits(16),t.readBits(4);const i=t.readBits(3),r=t.readBits(1),{general_profile_space:a,general_tier_flag:s,general_profile_idc:n,general_profile_compatibility_flags:o,general_constraint_indicator_flags:c,general_level_idc:u}=at(t,i);l(t);const d=l(t);let h=0;3===d&&(h=t.readBits(1));const f=l(t),m=l(t);let p=f,g=m;if(t.readBits(1)){const e=l(t),i=l(t),r=l(t),a=l(t);let s=1,n=1;const o=0===h?d:0;1===o?(s=2,n=2):2===o&&(s=2,n=1),p-=(e+i)*s,g-=(r+a)*n}const k=l(t),y=l(t);l(t);const b=t.readBits(1);let w=0;for(let e=b?0:i;e<=i;e++)l(t),w=l(t),l(t);l(t),l(t),l(t),l(t),l(t),l(t),t.readBits(1)&&t.readBits(1)&&st(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),l(t),l(t),t.skipBits(1));const T=l(t);if(nt(t,T),t.readBits(1)){const e=l(t);for(let i=0;i{try{const t=[],i=[],r=[],a=[];for(const c of ze(e)){const s=e.subarray(c.offset,c.offset+c.length),n=tt(s[0]);n===Oe.VPS_NUT?t.push(s):n===Oe.SPS_NUT?i.push(s):n===Oe.PPS_NUT?r.push(s):n!==Oe.PREFIX_SEI_NUT&&n!==Oe.SUFFIX_SEI_NUT||a.push(s)}if(0===i.length||0===r.length)return null;const s=it(i[0]);if(!s)return null;let n=0;if(r.length>0){const e=r[0],t=new Ce(He(e));t.skipBits(16),l(t),l(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),l(t),l(t),d(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&l(t),d(t),d(t),t.skipBits(1),t.skipBits(1),t.skipBits(1),t.skipBits(1);const i=t.readBits(1),a=t.readBits(1);n=i||a?i&&!a?2:!i&&a?3:0:0}const o=[...t.length?[{arrayCompleteness:1,nalUnitType:Oe.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:Oe.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:Oe.PPS_NUT,nalUnits:r}]:[],...a.length?[{arrayCompleteness:1,nalUnitType:tt(a[0][0]),nalUnits:a}]:[]];return{configurationVersion:1,generalProfileSpace:s.generalProfileSpace,generalTierFlag:s.generalTierFlag,generalProfileIdc:s.generalProfileIdc,generalProfileCompatibilityFlags:s.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:s.generalConstraintIndicatorFlags,generalLevelIdc:s.generalLevelIdc,minSpatialSegmentationIdc:s.minSpatialSegmentationIdc,parallelismType:n,chromaFormatIdc:s.chromaFormatIdc,bitDepthLumaMinus8:s.bitDepthLumaMinus8,bitDepthChromaMinus8:s.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:s.spsMaxSubLayersMinus1+1,temporalIdNested:s.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:o}}catch(t){return ve._error("Error building HEVC Decoder Configuration Record:",t),null}},at=(e,t)=>{const i=e.readBits(2),r=e.readBits(1),a=e.readBits(5);let s=0;for(let u=0;u<32;u++)s=s<<1|e.readBits(1);const n=new Uint8Array(6);for(let u=0;u<6;u++)n[u]=e.readBits(8);const o=e.readBits(8),c=[],l=[];for(let u=0;u0)for(let u=t;u<8;u++)e.skipBits(2);for(let u=0;u{for(let t=0;t<4;t++)for(let i=0;i<(3===t?2:6);i++){if(e.readBits(1)){const i=Math.min(64,1<<4+(t<<1));t>1&&d(e);for(let t=0;t{const i=[];for(let r=0;r{let a=0,s=0,n=0;if(0!==t&&(s=e.readBits(1)),s){if(t===i){n=t-(l(e)+1)}else n=t-1;e.readBits(1),l(e);const s=r[n]??0;for(let t=0;t<=s;t++){e.readBits(1)||e.readBits(1)}a=r[n]}else{const t=l(e),i=l(e);for(let r=0;r{let i=2,r=2,a=2,s=0,n=0,o={num:1,den:1};if(e.readBits(1)){const t=e.readBits(8);if(255===t)o={num:e.readBits(16),den:e.readBits(16)};else{const e=Qe[t];e&&(o=e)}}return e.readBits(1)&&e.readBits(1),e.readBits(1)&&(e.readBits(3),s=e.readBits(1),e.readBits(1)&&(i=e.readBits(8),r=e.readBits(8),a=e.readBits(8))),e.readBits(1)&&(l(e),l(e)),e.readBits(1),e.readBits(1),e.readBits(1),e.readBits(1)&&(l(e),l(e),l(e),l(e)),e.readBits(1)&&(e.readBits(32),e.readBits(32),e.readBits(1)&&l(e),e.readBits(1)&<(e,!0,t)),e.readBits(1)&&(e.readBits(1),e.readBits(1),e.readBits(1),n=l(e),l(e),l(e),l(e),l(e)),{pixelAspectRatio:o,colourPrimaries:i,transferCharacteristics:r,matrixCoefficients:a,fullRangeFlag:s,minSpatialSegmentationIdc:n}},lt=(e,t,i)=>{let r=!1,a=!1,s=!1;r=1===e.readBits(1),a=1===e.readBits(1),(r||a)&&(s=1===e.readBits(1),s&&(e.readBits(8),e.readBits(5),e.readBits(1),e.readBits(5)),e.readBits(4),e.readBits(4),s&&e.readBits(4),e.readBits(5),e.readBits(5),e.readBits(5));for(let n=0;n<=i;n++){let t=!0;1===e.readBits(1)||(t=1===e.readBits(1));let i=!1;t?l(e):i=1===e.readBits(1);let n=1;if(!i){n=l(e)+1}r&&ut(e,n,s),a&&ut(e,n,s)}},ut=(e,t,i)=>{for(let r=0;r{const i=new Set;let r=dt.audAllowed;for(const s of et(e,t)){if(r===dt.noMoreDataAllowed){i.add(s.offset);continue}const t=tt(e[s.offset]);if(r===dt.eoBitstreamAllowed&&37!==t){i.add(s.offset);continue}let a=!1;35===t?r>dt.audAllowed?a=!0:r=dt.beforeFirstVcl:t<=31?r>dt.afterFirstVcl?a=!0:r=dt.afterFirstVcl:36===t?r!==dt.afterFirstVcl?a=!0:r=dt.eoBitstreamAllowed:37===t?r=41&&t<=44||t>=48&&t<=55?r>dt.beforeFirstVcl?a=!0:r=dt.beforeFirstVcl:(38===t||40===t||t>=45&&t<=47||t>=56&&t<=63)&&r{if(t.description){const i=3&h(t.description)[21];return Ke(e,i+1)}return je(e)})(a,t)},mt={1:{colourPrimaries:5,transferCharacteristics:6,matrixCoefficients:5},2:{colourPrimaries:1,transferCharacteristics:1,matrixCoefficients:1},3:{colourPrimaries:6,transferCharacteristics:6,matrixCoefficients:6},4:{colourPrimaries:7,transferCharacteristics:7,matrixCoefficients:7},5:{colourPrimaries:9,transferCharacteristics:14,matrixCoefficients:9},7:{colourPrimaries:1,transferCharacteristics:13,matrixCoefficients:0}},pt=e=>{const t=new Ce(e);if(2!==t.readBits(2))return null;const i=t.readBits(1),r=(t.readBits(1)<<1)+i;3===r&&t.skipBits(1);if(1===t.readBits(1))return null;if(0!==t.readBits(1))return null;t.skipBits(2);if(4817730!==t.readBits(24))return null;let a=8;if(r>=2){a=t.readBits(1)?12:10}const s=t.readBits(3);let n=0,o=0;if(7!==s){if(o=t.readBits(1),1===r||3===r){const e=t.readBits(1),i=t.readBits(1);n=e||i?e&&!i?2:1:3,t.skipBits(1)}else n=1}else n=3,o=1;const l=(t.readBits(16)+1)*(t.readBits(16)+1);let u=c(Gt).level;for(const c of Gt)if(l<=c.maxPictureSize){u=c.level;break}const d=mt[s];return{profile:r,level:u,bitDepth:a,chromaSubsampling:n,videoFullRangeFlag:o,colourPrimaries:d?.colourPrimaries??2,transferCharacteristics:d?.transferCharacteristics??2,matrixCoefficients:d?.matrixCoefficients??2}},gt=function*(e){const t=new Ce(e),i=()=>{let e=0;for(let i=0;i<8;i++){const r=t.readAlignedByte();if(e+=(127&r)*2**(7*i),!(128&r))break;if(7===i&&128&r)return null}return e>2**32-1?null:e};for(;t.getBitsLeft()>=8;){t.skipBits(1);const r=t.readBits(4),a=t.readBits(1),s=t.readBits(1);let o;if(t.skipBits(1),a&&t.skipBits(8),s){const e=i();if(null===e)return;o=e}else o=Math.floor(t.getBitsLeft()/8);n(t.pos%8===0),yield{type:r,data:e.subarray(t.pos/8,t.pos/8+o)},t.skipBits(8*o)}},kt=e=>{for(const{type:t,data:i}of gt(e)){if(1!==t)continue;const e=new Ce(i),r=e.readBits(3);e.readBits(1);const a=e.readBits(1);let s=0,n=0,o=0;if(a)s=e.readBits(5);else{let t=0;if(e.readBits(1)){e.skipBits(32),e.skipBits(32);if(e.readBits(1)){let t=0;for(;t<32&&!e.readBits(1);)t++;t<32&&e.skipBits(t)}t=e.readBits(1),t&&(o=e.readBits(5),e.skipBits(32),e.skipBits(5),e.skipBits(5))}const i=e.readBits(1),r=e.readBits(5);for(let a=0;a<=r;a++){e.skipBits(12);const r=e.readBits(5);if(0===a&&(s=r),r>7){const t=e.readBits(1);0===a&&(n=t)}if(t){if(e.readBits(1)){const t=o+1;e.skipBits(t),e.skipBits(t),e.skipBits(1)}}if(i){e.readBits(1)&&e.skipBits(4)}}}const c=e.readBits(4),l=e.readBits(4),u=c+1;e.skipBits(u);const d=l+1;e.skipBits(d);let h=0;if(h=a?0:e.readBits(1),h&&(e.skipBits(4),e.skipBits(3)),e.skipBits(1),e.skipBits(1),e.skipBits(1),!a){e.skipBits(1),e.skipBits(1),e.skipBits(1),e.skipBits(1);const t=e.readBits(1);t&&(e.skipBits(1),e.skipBits(1));let i=0;if(i=e.readBits(1)?2:e.readBits(1),i>0){e.readBits(1)||e.skipBits(1)}t&&e.skipBits(3)}e.skipBits(1),e.skipBits(1),e.skipBits(1);const f=e.readBits(1);let m=8;if(2===r&&f){m=e.readBits(1)?12:10}else r<=2&&(m=f?10:8);let p=0;1!==r&&(p=e.readBits(1));let g=2,k=2,y=2;e.readBits(1)&&(g=e.readBits(8),k=e.readBits(8),y=e.readBits(8));let b=0,w=1,T=1,S=0;return p?b=e.readBits(1):1===g&&13===k&&0===y?(b=1,w=0,T=0):(b=e.readBits(1),0===r?(w=1,T=1):1===r?(w=0,T=0):12===m?(w=e.readBits(1),T=w?e.readBits(1):0):(w=1,T=0),w&&T&&(S=e.readBits(2))),{profile:r,level:s,tier:n,bitDepth:m,monochrome:p,chromaSubsamplingX:w,chromaSubsamplingY:T,chromaSamplePosition:S,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},yt=e=>{if(e.length<36)return null;const t=f(e);if(1768124518!==t.getUint32(4))return null;return t.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:t.getUint8(22),transferCharacteristics:t.getUint8(23),matrixCoefficients:t.getUint8(24)}},bt=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],wt=e=>{if(e.length<7)throw new Error("Setup header is too short.");if(5!==e[0])throw new Error("Wrong packet type in Setup header.");if("vorbis"!==String.fromCharCode(...e.slice(1,7)))throw new Error("Invalid packet signature in Setup header.");const t=e.length,i=new Uint8Array(t);for(let u=0;u97;)if(1===r.readBits(1)){a=r.pos;break}if(0===a)throw new Error("Invalid Setup header: framing bit not found.");let s=0,n=!1,o=0;for(;r.getBitsLeft()>=97;){const e=r.pos,t=r.readBits(8),i=r.readBits(16),a=r.readBits(16);if(t>63||0!==i||0!==a){r.pos=e;break}if(r.skipBits(1),s++,s>64)break;r.clone().readBits(6)+1===s&&(n=!0,o=s)}if(!n)throw new Error("Invalid Setup header: mode header not found.");if(o>63)throw new Error(`Unsupported mode count: ${o}.`);const c=o;r.pos=0,r.skipBits(a);const l=Array(c).fill(0);for(let u=c-1;u>=0;u--)r.skipBits(40),l[u]=r.readBits(1);return{modeBlockflags:l}},Tt=(e,t,i)=>{switch(e){case"avc":for(const e of qe(i,t)){const t=i[e.offset],r=We(t);if(r>=Me.NON_IDR_SLICE&&r<=Me.SLICE_DPC)return"delta";if(r===Me.IDR)return"key";if(r===Me.SEI&&!se()){const t=i.subarray(e.offset,e.offset+e.length),r=He(t);let a=1;do{let e=0;for(;;){const t=r[a++];if(void 0===t)break;if(e+=t,t<255)break}let t=0;for(;;){const e=r[a++];if(void 0===e)break;if(t+=e,e<255)break}if(e===6){const e=new Ce(r);e.pos=8*a;const t=l(e),i=e.readBits(1);if(0===t&&1===i)return"key"}a+=t}while(a{var i,r;const a=f(e);let s=0;const n=a.getUint32(s,!0);s+=4;const o=m.decode(e.subarray(s,s+n));s+=n,n>0&&(t.raw??(t.raw={}),(i=t.raw).vendor??(i.vendor=o));const c=a.getUint32(s,!0);s+=4;for(let l=0;l0&&(t.trackNumber??(t.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(t.tracksTotal??(t.tracksTotal=r))}break;case"TRACKTOTAL":{const e=Number.parseInt(l,10);Number.isInteger(e)&&e>0&&(t.tracksTotal??(t.tracksTotal=e))}break;case"DISCNUMBER":{const e=l.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(t.discNumber??(t.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(t.discsTotal??(t.discsTotal=r))}break;case"DISCTOTAL":{const e=Number.parseInt(l,10);Number.isInteger(e)&&e>0&&(t.discsTotal??(t.discsTotal=e))}break;case"DATE":{const e=new Date(l);Number.isNaN(e.getTime())||(t.date??(t.date=e))}break;case"GENRE":t.genre??(t.genre=l);break;case"METADATA_BLOCK_PICTURE":{const e=de(l),i=f(e),r=i.getUint32(0,!1),a=i.getUint32(4,!1),s=String.fromCharCode(...e.subarray(8,8+a)),n=i.getUint32(8+a,!1),o=m.decode(e.subarray(12+a,12+a+n)),c=i.getUint32(a+n+28),u=e.subarray(a+n+32,a+n+32+c);t.images??(t.images=[]),t.images.push({data:u,mimeType:s,kind:3===r?"coverFront":4===r?"coverBack":"unknown",name:void 0,description:o||void 0})}}}},It=[2,1,2,3,3,4,4,5],xt=e=>{if(e.length<7)return null;if(11!==e[0]||119!==e[1])return null;const t=new Ce(e);t.skipBits(16),t.skipBits(16);const i=t.readBits(2);if(3===i)return null;const r=t.readBits(6),a=t.readBits(5);if(a>8)return null;const s=t.readBits(3),n=t.readBits(3);0!==(1&n)&&1!==n&&t.skipBits(2),0!==(4&n)&&t.skipBits(2),2===n&&t.skipBits(2);return{fscod:i,bsid:a,bsmod:s,acmod:n,lfeon:t.readBits(1),bitRateCode:Math.floor(r/2)}},Ct=[128,138,192,128,140,192,160,174,240,160,176,240,192,208,288,192,210,288,224,242,336,224,244,336,256,278,384,256,280,384,320,348,480,320,350,480,384,416,576,384,418,576,448,486,672,448,488,672,512,556,768,512,558,768,640,696,960,640,698,960,768,834,1152,768,836,1152,896,974,1344,896,976,1344,1024,1114,1536,1024,1116,1536,1280,1392,1920,1280,1394,1920,1536,1670,2304,1536,1672,2304,1792,1950,2688,1792,1952,2688,2048,2228,3072,2048,2230,3072,2304,2506,3456,2304,2508,3456,2560,2786,3840,2560,2788,3840],Bt=[1,2,3,6],Et=e=>{if(e.length<6)return null;if(11!==e[0]||119!==e[1])return null;const t=new Ce(e);t.skipBits(16);const i=t.readBits(2);if(t.skipBits(3),0!==i&&2!==i)return null;const r=t.readBits(11),a=t.readBits(2);let s,n=0;3===a?(n=t.readBits(2),s=3):s=t.readBits(2);const o=t.readBits(3),c=t.readBits(1),l=t.readBits(5);if(l<11||l>16)return null;const u=Bt[s];let d;d=a<3?Ae[a]/1e3:De[n]/1e3;return{dataRate:Math.round((r+1)*d/(16*u)),substreams:[{fscod:a,fscod2:n,bsid:l,bsmod:0,acmod:o,lfeon:c,numDepSub:0,chanLoc:0}]}},_t=e=>{const t=e.substreams[0];return n(t),t.fscod<3?Ae[t.fscod]:null!==t.fscod2&&t.fscod2<3?De[t.fscod2]:null},Rt=e=>{const t=e.substreams[0];n(t);let i=It[t.acmod]+t.lfeon;if(t.numDepSub>0){const e=[2,2,1,1,2,2,2,1,1];for(let r=0;r<9;r++)t.chanLoc&1<<8-r&&(i+=e[r])}return i},Ft=[0,8e3,16e3,32e3,0,0,11025,22050,44100,0,0,12e3,24e3,48e3,96e3,192e3],At=[32e3,56e3,64e3,96e3,112e3,128e3,192e3,224e3,256e3,32e4,384e3,448e3,512e3,576e3,64e4,768e3,96e4,1024e3,1152e3,128e4,1344e3,1408e3,1411200,1472e3,1536e3,192e4,2048e3,3072e3,384e4,0,0,0],Dt=[16,16,20,20,0,24,24,0],Mt=[1,2,2,2,2,3,3,4,4,5,6,6,6,7,8,8],Nt=[1,2,2,2,2,3,18,19,6,7,518,323,83,519,582,535],Ot=[32e3,44100,48e3,0],Lt=[8e3,16e3,32e3,64e3,128e3,22050,44100,88200,176400,352800,12e3,24e3,48e3,96e3,192e3,384e3],zt=[512,1024,2048,4096],Ut=e=>{const t=Wt(e),i=f(e);let r=t?4*Math.ceil(t.frameSize/4):0,a=null;for(;r+4<=e.length&&1683496997===i.getUint32(r);){const t=Ht(e.subarray(r));if(!t)break;a??(a=t),r+=t.frameSize}if(t)return{frameSize:a?r:t.frameSize,sampleRate:t.sampleRate,numberOfChannels:t.numberOfChannels,sampleCount:t.sampleCount,channelLayout:t.channelLayout,pcmResolution:t.pcmResolution,bitRate:t.bitRate,core:t,hasExtensions:null!==a};if(!a?.asset)return null;const{asset:s}=a;return{frameSize:r,sampleRate:s.sampleRate,numberOfChannels:s.numberOfChannels,sampleCount:s.sampleCount,channelLayout:s.channelLayout,pcmResolution:s.pcmResolution,bitRate:0,core:null,hasExtensions:!0}},qt=e=>{const t=Ut(e);return t?.core?t.hasExtensions?"dtsh":"dtsc":null},Wt=e=>{if(e.length<18)return null;if(127!==e[0]||254!==e[1]||128!==e[2]||1!==e[3])return null;const t=new Ce(e);if(t.skipBits(32),t.skipBits(1),31!==t.readBits(5))return null;const i=t.readBits(1),r=t.readBits(7)+1;if(r%8!==0)return null;const a=t.readBits(14)+1;if(a<96)return null;const s=t.readBits(6);if(s>=Mt.length)return null;const n=Ft[t.readBits(4)];if(0===n)return null;const o=At[t.readBits(5)];if(0!==t.readBits(1))return null;t.skipBits(4),t.skipBits(5);const c=t.readBits(2);if(3===c)return null;t.skipBits(1),i&&t.skipBits(16),t.skipBits(7);const l=Dt[t.readBits(3)];if(0===l)return null;const u=0!==c;return{frameSize:a,sampleRate:n,numberOfChannels:Mt[s]+(u?1:0),sampleCount:32*r,channelLayout:Nt[s]|(u?8:0),amode:s,lfePresent:u,bitRate:o,pcmResolution:l}},Ht=e=>{if(e.length<10)return null;if(100!==e[0]||88!==e[1]||32!==e[2]||37!==e[3])return null;const t=new Ce(e);t.skipBits(32),t.skipBits(8);const i=t.readBits(2),r=t.readBits(1),a=8+4*r,s=16+4*r;t.skipBits(a);const n=t.readBits(s)+1,o={frameSize:n,asset:null};if(!t.readBits(1))return o;const c=Ot[t.readBits(2)],l=512*(t.readBits(3)+1);t.readBits(1)&&t.skipBits(36);const u=t.readBits(3)+1,d=t.readBits(3)+1,h=[];for(let k=0;k2&&t.skipBits(1),p>6&&t.skipBits(1),t.readBits(1))){const e=t.readBits(2)+1<<2;g=t.readBits(e)}return 0===c||t.getBitsLeft()<0?o:{frameSize:n,asset:{sampleRate:m,numberOfChannels:p,sampleCount:Math.round(l*m/c),channelLayout:g,pcmResolution:f}}},Vt=e=>K(e)+K(44646&e),jt=["avc","hevc","vp9","av1","vp8","prores"],Kt=["pcm-s16","pcm-s16be","pcm-s24","pcm-s24be","pcm-s32","pcm-s32be","pcm-f32","pcm-f32be","pcm-f64","pcm-f64be","pcm-u8","pcm-s8","ulaw","alaw"],Xt=["aac","opus","mp3","vorbis","flac","ac3","eac3","dts",...Kt],$t=[{maxMacroblocks:99,maxBitrate:64e3,maxDpbMbs:396,level:10},{maxMacroblocks:396,maxBitrate:192e3,maxDpbMbs:900,level:11},{maxMacroblocks:396,maxBitrate:384e3,maxDpbMbs:2376,level:12},{maxMacroblocks:396,maxBitrate:768e3,maxDpbMbs:2376,level:13},{maxMacroblocks:396,maxBitrate:2e6,maxDpbMbs:2376,level:20},{maxMacroblocks:792,maxBitrate:4e6,maxDpbMbs:4752,level:21},{maxMacroblocks:1620,maxBitrate:4e6,maxDpbMbs:8100,level:22},{maxMacroblocks:1620,maxBitrate:1e7,maxDpbMbs:8100,level:30},{maxMacroblocks:3600,maxBitrate:14e6,maxDpbMbs:18e3,level:31},{maxMacroblocks:5120,maxBitrate:2e7,maxDpbMbs:20480,level:32},{maxMacroblocks:8192,maxBitrate:2e7,maxDpbMbs:32768,level:40},{maxMacroblocks:8192,maxBitrate:5e7,maxDpbMbs:32768,level:41},{maxMacroblocks:8704,maxBitrate:5e7,maxDpbMbs:34816,level:42},{maxMacroblocks:22080,maxBitrate:135e6,maxDpbMbs:110400,level:50},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:51},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:52},{maxMacroblocks:139264,maxBitrate:24e7,maxDpbMbs:696320,level:60},{maxMacroblocks:139264,maxBitrate:48e7,maxDpbMbs:696320,level:61},{maxMacroblocks:139264,maxBitrate:8e8,maxDpbMbs:696320,level:62}],Gt=[{maxPictureSize:36864,maxBitrate:2e5,level:10},{maxPictureSize:73728,maxBitrate:8e5,level:11},{maxPictureSize:122880,maxBitrate:18e5,level:20},{maxPictureSize:245760,maxBitrate:36e5,level:21},{maxPictureSize:552960,maxBitrate:72e5,level:30},{maxPictureSize:983040,maxBitrate:12e6,level:31},{maxPictureSize:2228224,maxBitrate:18e6,level:40},{maxPictureSize:2228224,maxBitrate:3e7,level:41},{maxPictureSize:8912896,maxBitrate:6e7,level:50},{maxPictureSize:8912896,maxBitrate:12e7,level:51},{maxPictureSize:8912896,maxBitrate:18e7,level:52},{maxPictureSize:35651584,maxBitrate:18e7,level:60},{maxPictureSize:35651584,maxBitrate:24e7,level:61},{maxPictureSize:35651584,maxBitrate:48e7,level:62}],Qt=".01.01.01.01.00",Yt=".0.110.01.01.01.0",Jt=["ap4x","ap4h","apch","apcn","apcs","apco"],Zt=["dtsc","dtsh","dtsl","dtse"],ei=e=>{const{codec:t,codecDescription:i,colorSpace:r,avcCodecInfo:a,hevcCodecInfo:s,vp9CodecInfo:o,av1CodecInfo:l,proresFormat:u}=e;if("avc"===t){if(n(null!==e.avcType),a){const t=new Uint8Array([a.avcProfileIndication,a.profileCompatibility,a.avcLevelIndication]);return`avc${e.avcType}.${C(t)}`}if(!i||i.byteLength<4)throw new TypeError("AVC decoder description is not provided or is not at least 4 bytes long.");return`avc${e.avcType}.${C(i.subarray(1,4))}`}if("hevc"===t){let e,t,r,a,n,o;if(s)e=s.generalProfileSpace,t=s.generalProfileIdc,r=B(s.generalProfileCompatibilityFlags),a=s.generalTierFlag,n=s.generalLevelIdc,o=[...s.generalConstraintIndicatorFlags];else{if(!i||i.byteLength<23)throw new TypeError("HEVC decoder description is not provided or is not at least 23 bytes long.");const s=f(i),c=s.getUint8(1);e=c>>6&3,t=31&c,r=B(s.getUint32(2)),a=c>>5&1,n=s.getUint8(12),o=[];for(let e=0;e<6;e++)o.push(s.getUint8(6+e))}let c="hev1.";for(c+=["","A","B","C"][e]+t,c+=".",c+=r.toString(16).toUpperCase(),c+=".",c+=0===a?"L":"H",c+=n;o.length>0&&0===o[o.length-1];)o.pop();return o.length>0&&(c+=".",c+=o.map(e=>e.toString(16).toUpperCase()).join(".")),c}if("vp8"===t)return"vp8";if("vp9"===t){if(!o){const t=e.width*e.height;let i=c(Gt).level;for(const e of Gt)if(t<=e.maxPictureSize){i=e.level;break}return`vp09.00.${i.toString().padStart(2,"0")}.08`}let t=`vp09.${o.profile.toString().padStart(2,"0")}.${o.level.toString().padStart(2,"0")}.${o.bitDepth.toString().padStart(2,"0")}.${o.chromaSubsampling.toString().padStart(2,"0")}`;return t+=`.${o.colourPrimaries.toString().padStart(2,"0")}.${o.transferCharacteristics.toString().padStart(2,"0")}.${o.matrixCoefficients.toString().padStart(2,"0")}.${o.videoFullRangeFlag.toString().padStart(2,"0")}`,t.endsWith(Qt)&&(t=t.slice(0,-15)),t}if("av1"===t){if(!l){const t=e.width*e.height;let i=c(Gt).level;for(const e of Gt)if(t<=e.maxPictureSize){i=e.level;break}return`av01.0.${i.toString().padStart(2,"0")}M.08`}const t=l.profile,i=l.level.toString().padStart(2,"0"),a=l.tier?"H":"M",s=l.bitDepth.toString().padStart(2,"0"),n=l.monochrome?"1":"0",o=100*l.chromaSubsamplingX+10*l.chromaSubsamplingY+1*(l.chromaSubsamplingX&&l.chromaSubsamplingY?l.chromaSamplePosition:0),u=r?.primaries?g[r.primaries]:1,d=r?.transfer?y[r.transfer]:1,h=r?.matrix?w[r.matrix]:1,f=r?.fullRange?1:0;let m=`av01.${t}.${i}${a}.${s}`;return m+=`.${n}.${o.toString().padStart(3,"0")}`,m+=`.${u.toString().padStart(2,"0")}`,m+=`.${d.toString().padStart(2,"0")}`,m+=`.${h.toString().padStart(2,"0")}`,m+=`.${f}`,m.endsWith(Yt)&&(m=m.slice(0,-17)),m}if("prores"===t)return u??"apch";throw null!==t&&N(t),new TypeError(`Unhandled codec '${t}'.`)},ti=e=>{switch(e.codec){case"avc":{let t=e.avcCodecInfo?.sequenceParameterSets[0];if(!t&&e.codecDescription&&(t=Ge(e.codecDescription)?.sequenceParameterSets[0]),t){const e=Ye(t);if(e)return{primaries:k[e.colourPrimaries],transfer:b[e.transferCharacteristics],matrix:T[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"hevc":{let t=e.hevcCodecInfo?.arrays.find(e=>e.nalUnitType===Oe.SPS_NUT)?.nalUnits[0];if(!t&&e.codecDescription&&(t=(e=>{try{const t=f(e);let i=0;const r=t.getUint8(i++),a=t.getUint8(i++),s=a>>6&3,n=a>>5&1,o=31&a,c=t.getUint32(i,!1);i+=4;const l=e.subarray(i,i+6);i+=6;const u=t.getUint8(i++),d=(15&t.getUint8(i++))<<8|t.getUint8(i++),h=3&t.getUint8(i++),m=3&t.getUint8(i++),p=7&t.getUint8(i++),g=7&t.getUint8(i++),k=t.getUint16(i,!1);i+=2;const y=t.getUint8(i++),b=y>>6&3,w=y>>3&7,T=y>>2&1,S=3&y,v=t.getUint8(i++),P=[];for(let f=0;f>7&1,s=63&r,n=t.getUint16(i,!1);i+=2;const o=[];for(let c=0;ce.nalUnitType===Oe.SPS_NUT)?.nalUnits[0]),t){const e=it(t);if(e)return{primaries:k[e.colourPrimaries],transfer:b[e.transferCharacteristics],matrix:T[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"vp8":break;case"vp9":if(e.vp9CodecInfo)return{primaries:k[e.vp9CodecInfo.colourPrimaries],transfer:b[e.vp9CodecInfo.transferCharacteristics],matrix:T[e.vp9CodecInfo.matrixCoefficients],fullRange:!!e.vp9CodecInfo.videoFullRangeFlag};break;case"av1":if(e.av1CodecInfo)return{primaries:k[e.av1CodecInfo.colourPrimaries],transfer:b[e.av1CodecInfo.transferCharacteristics],matrix:T[e.av1CodecInfo.matrixCoefficients],fullRange:!!e.av1CodecInfo.videoFullRangeFlag};break;case"prores":if(e.proresCodecInfo)return{primaries:k[e.proresCodecInfo.colourPrimaries],transfer:b[e.proresCodecInfo.transferCharacteristics],matrix:T[e.proresCodecInfo.matrixCoefficients],fullRange:e.proresCodecInfo.fullRange}}return{primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0}},ii=e=>{const{codec:t,codecDescription:i,aacCodecInfo:r,dtsFormat:a}=e;if("aac"===t){if(!r)throw new TypeError("AAC codec info must be provided.");if(r.isMpeg2)return"mp4a.67";{let e;if(null!==r.objectType)e=r.objectType;else{e=_e(i).objectType}return`mp4a.40.${e}`}}if("mp3"===t)return"mp3";if("opus"===t)return"opus";if("vorbis"===t)return"vorbis";if("flac"===t)return"flac";if("ac3"===t)return"ac-3";if("eac3"===t)return"ec-3";if("dts"===t)return a??"dtsc";if(t&&Kt.includes(t))return t;throw new TypeError(`Unhandled codec '${t}'.`)},ri=48e3,ai=/^pcm-([usf])(\d+)(be)?$/,si=e=>{if(n(Kt.includes(e)),"ulaw"===e)return{dataType:"ulaw",sampleSize:1,littleEndian:!0,silentValue:255};if("alaw"===e)return{dataType:"alaw",sampleSize:1,littleEndian:!0,silentValue:213};const t=ai.exec(e);let i;n(t),i="u"===t[1]?"unsigned":"s"===t[1]?"signed":"float";return{dataType:i,sampleSize:Number(t[2])/8,littleEndian:"be"!==t[3],silentValue:"pcm-u8"===e?128:0}},ni=e=>e.startsWith("avc1")||e.startsWith("avc3")?"avc":e.startsWith("hev1")||e.startsWith("hvc1")?"hevc":"vp8"===e?"vp8":e.startsWith("vp09")?"vp9":e.startsWith("av01")?"av1":Jt.includes(e)?"prores":"mp3"===e||"mp4a.69"===e||"mp4a.6B"===e||"mp4a.6b"===e||"mp4a.40.34"===e?"mp3":e.startsWith("mp4a.40.")||"mp4a.67"===e?"aac":"opus"===e?"opus":"vorbis"===e?"vorbis":"flac"===e?"flac":"ac-3"===e||"ac3"===e?"ac3":"ec-3"===e||"eac3"===e?"eac3":Zt.includes(e)?"dts":"ulaw"===e?"ulaw":"alaw"===e?"alaw":ai.test(e)?e:"webvtt"===e?"webvtt":null,oi=[44100,48e3,32e3],ci=[-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],li=1483304551,ui=1231971951,di=(e,t)=>3===e?3===t?21:36:3===t?13:21,hi=(e,t)=>{const i=e>>>24,r=e>>>16&255,a=e>>>8&255,s=255&e;if(255!==i&&255!==r&&255!==a&&255!==s)return{header:null,bytesAdvanced:4};if(255!==i)return{header:null,bytesAdvanced:1};if(224!==(224&r))return{header:null,bytesAdvanced:1};let n=0,o=0;16&r?n=8&r?0:1:(n=1,o=1);const c=r>>3&3,l=r>>1&3,u=(a>>2&3)%3,d=s>>6&3,h=s>>4&3,f=s>>3&1,m=s>>2&1,p=3&s,g=ci[16*n*4+16*l+(a>>4&15)];if(-1===g)return{header:null,bytesAdvanced:1};const k=1e3*g,y=oi[u]>>n+o,b=((e,t,i,r,a)=>0===t?0:1===t?Math.floor(144*i/(r<>1&1);if(null!==t&&t{let t=2130706432,i=0;for(;0!==t;)i>>=1,i|=e&t,t>>=8;return i};var mi,pi;(pi=mi||(mi={}))[pi.FrameCount=1]="FrameCount",pi[pi.FileSize=2]="FileSize",pi[pi.Toc=4]="Toc";const gi=e=>3===e?1:2;class ki{constructor(e){this.input=e}dispose(){}}const yi=new Uint8Array(0);class bi{constructor(e,t,i,r,a=-1,s,n){if(this.data=e,this.type=t,this.timestamp=i,this.duration=r,this.sequenceNumber=a,e===yi&&void 0===s)throw new Error("Internal error: byteLength must be explicitly provided when constructing metadata-only packets.");if(void 0===s&&(s=e.byteLength),!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("key"!==t&&"delta"!==t)throw new TypeError('type must be either "key" or "delta".');if(!Number.isFinite(i))throw new TypeError("timestamp must be a number.");if(!Number.isFinite(r)||r<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(a))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(s)||s<0)throw new TypeError("byteLength must be a non-negative integer.");if(void 0!==n&&("object"!==typeof n||!n))throw new TypeError("sideData, when provided, must be an object.");if(void 0!==n?.alpha&&!(n.alpha instanceof Uint8Array))throw new TypeError("sideData.alpha, when provided, must be a Uint8Array.");if(void 0!==n?.alphaByteLength&&(!Number.isInteger(n.alphaByteLength)||n.alphaByteLength<0))throw new TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=s,this.sideData=n??{},this.sideData.alpha&&void 0===this.sideData.alphaByteLength&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}get isMetadataOnly(){return this.data===yi}get microsecondTimestamp(){return Math.trunc(G*this.timestamp)}get microsecondDuration(){return Math.trunc(G*this.duration)}toEncodedVideoChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}alphaToEncodedVideoChunk(e=this.type){if(!this.sideData.alpha)throw new TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.sideData.alpha,type:e,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}toEncodedAudioChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to an audio chunk.");if("undefined"===typeof EncodedAudioChunk)throw new Error("EncodedAudioChunk is not available in this environment.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}static fromEncodedChunk(e,t){if(!(e instanceof EncodedVideoChunk||e instanceof EncodedAudioChunk))throw new TypeError("chunk must be an EncodedVideoChunk or EncodedAudioChunk.");const i=new Uint8Array(e.byteLength);return e.copyTo(i),new bi(i,e.type,e.timestamp/1e6,(e.duration??0)/1e6,void 0,void 0,t)}clone(e){if(void 0!==e&&("object"!==typeof e||null===e))throw new TypeError("options, when provided, must be an object.");if(void 0!==e?.data&&!(e.data instanceof Uint8Array))throw new TypeError("options.data, when provided, must be a Uint8Array.");if(void 0!==e?.type&&"key"!==e.type&&"delta"!==e.type)throw new TypeError('options.type, when provided, must be either "key" or "delta".');if(void 0!==e?.timestamp&&!Number.isFinite(e.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(void 0!==e?.duration&&!Number.isFinite(e.duration))throw new TypeError("options.duration, when provided, must be a number.");if(void 0!==e?.sequenceNumber&&!Number.isFinite(e.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(void 0!==e?.sideData&&("object"!==typeof e.sideData||null===e.sideData))throw new TypeError("options.sideData, when provided, must be an object.");return new bi(e?.data??this.data,e?.type??this.type,e?.timestamp??this.timestamp,e?.duration??this.duration,e?.sequenceNumber??this.sequenceNumber,this.byteLength,e?.sideData??this.sideData)}}const wi=e=>{const t=f(e);let i=0;const r=t.getUint8(i);i+=1,i+=3;const a=C(e.subarray(i,i+16));i+=16;let s=null;if(r>0){const r=t.getUint32(i);if(i+=4,r>0){s=[];for(let t=0;te.systemId===t.systemId&&((e,t)=>{if(e.length!==t.length)return!1;for(let i=0;i{let t=Io(e);const i=Do(e,4);let r=8;1===t&&(t=Eo(e),r=16);const a=t-r;return a<0?null:{name:i,totalSize:t,headerSize:r,contentSize:a}},vi=e=>Co(e)/65536,Pi=e=>Co(e)/1073741824,Ii=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=bo(e);if(t|=127&i,0===(128&i))break}return t},xi=e=>{let t=To(e);return e.skip(2),t=Math.min(t,e.remainingLength),m.decode(yo(e,t))},Ci=e=>{const t=Si(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=Io(e);e.skip(4);const r=yo(e,t.contentSize-8);switch(i){case 1:return m.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new Pe(r,"image/jpeg");case 14:return new Pe(r,"image/png");case 27:return new Pe(r,"image/bmp");default:return r}},Bi=16,Ei=new Uint32Array(256),_i=new Uint32Array(256),Ri=new Uint32Array(256),Fi=new Uint32Array(256),Ai=new Uint32Array(256),Di=new Uint32Array(256),Mi=new Uint32Array(10);let Ni=!1;class Oi{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(Bi/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(Bi),this.out=new Uint8Array(Bi),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){n(16===e.byteLength),n(16===t.byteLength),Ni||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,n=1;s<256;s++)i[s]=n,t[n]=s,n=n^n<<1^(128&n?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let a=r^r<<1^r<<2^r<<3^r<<4;a=a>>>8^255&a^99,e[s]=a}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);Ei[s]=t<<24|t<<16|t<<8|t,Di[s]=i<<24|i<<16|i<<8|i;const a=r(i,14)<<24|r(i,9)<<16|r(i,13)<<8|r(i,11);_i[s]=a,Ri[s]=a>>>8|a<<24,Fi[s]=a>>>16|a<<16,Ai[s]=a>>>24|a<<8}let a=1;for(let s=0;s<10;s++)Mi[s]=a<<24,a=a<<1^(128&a?283:0);Ni=!0})();const i=new DataView(e.buffer,e.byteOffset,e.byteLength),r=new DataView(t.buffer,t.byteOffset,t.byteLength);this.roundkey[0]=i.getUint32(0,!1),this.roundkey[1]=i.getUint32(4,!1),this.roundkey[2]=i.getUint32(8,!1),this.roundkey[3]=i.getUint32(12,!1),this.iv[0]=r.getUint32(0,!1),this.iv[1]=r.getUint32(4,!1),this.iv[2]=r.getUint32(8,!1),this.iv[3]=r.getUint32(12,!1);for(let a=4;a<44;a+=4){const e=this.roundkey[a-1];this.roundkey[a]=this.roundkey[a-4]^4278190080&Ei[e>>>16&255]^16711680&Ei[e>>>8&255]^65280&Ei[e>>>0&255]^255&Ei[e>>>24&255]^Mi[a/4-1],this.roundkey[a+1]=this.roundkey[a-3]^this.roundkey[a],this.roundkey[a+2]=this.roundkey[a-2]^this.roundkey[a+1],this.roundkey[a+3]=this.roundkey[a-1]^this.roundkey[a+2]}for(let a=0,s=40;a>>24&255]]^Ri[255&Ei[t>>>16&255]]^Fi[255&Ei[t>>>8&255]]^Ai[255&Ei[t>>>0&255]]}}decrypt(){let e=this.inView.getUint32(0,!1)^this.roundkey[0],t=this.inView.getUint32(4,!1)^this.roundkey[1],i=this.inView.getUint32(8,!1)^this.roundkey[2],r=this.inView.getUint32(12,!1)^this.roundkey[3];const a=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),n=this.inView.getUint32(8,!1),o=this.inView.getUint32(12,!1);let c,l,u,d;for(let g=1;g<10;g++){const a=4*g;c=_i[e>>>24]^Ri[r>>>16&255]^Fi[i>>>8&255]^Ai[255&t]^this.roundkey[a],l=_i[t>>>24]^Ri[e>>>16&255]^Fi[r>>>8&255]^Ai[255&i]^this.roundkey[a+1],u=_i[i>>>24]^Ri[t>>>16&255]^Fi[e>>>8&255]^Ai[255&r]^this.roundkey[a+2],d=_i[r>>>24]^Ri[i>>>16&255]^Fi[t>>>8&255]^Ai[255&e]^this.roundkey[a+3],e=c,t=l,i=u,r=d}const h=4278190080&Di[e>>>24&255]^16711680&Di[r>>>16&255]^65280&Di[i>>>8&255]^255&Di[t>>>0&255]^this.roundkey[40],f=4278190080&Di[t>>>24&255]^16711680&Di[e>>>16&255]^65280&Di[r>>>8&255]^255&Di[i>>>0&255]^this.roundkey[41],m=4278190080&Di[i>>>24&255]^16711680&Di[t>>>16&255]^65280&Di[e>>>8&255]^255&Di[r>>>0&255]^this.roundkey[42],p=4278190080&Di[r>>>24&255]^16711680&Di[i>>>16&255]^65280&Di[t>>>8&255]^255&Di[e>>>0&255]^this.roundkey[43];this.outView.setUint32(0,h^this.iv[0],!1),this.outView.setUint32(4,f^this.iv[1],!1),this.outView.setUint32(8,m^this.iv[2],!1),this.outView.setUint32(12,p^this.iv[3],!1),this.iv[0]=a,this.iv[1]=s,this.iv[2]=n,this.iv[3]=o}}class Li extends ki{constructor(e){super(e),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=e._reader}async getTrackBackings(){return await this.readMetadata(),this.tracks.map(e=>e.trackBacking)}async getMimeType(){await this.readMetadata();const e=await this.getTrackBackings(),t=await Promise.all(e.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isQuickTime?"quicktime":"mp4");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(e=>"video"===e.info?.type),hasAudio:this.tracks.some(e=>"audio"===e.info?.type),codecStrings:t.filter(Boolean)})}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=0,t=!1,i=!1;for(;;){let r=this.reader.requestSliceRange(e,8,16);if(ce(r)&&(r=await r),!r)break;const a=e,s=Si(r);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=Do(r,4);this.isQuickTime="qt "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(r.filePos,s.contentSize);if(ce(e)&&(e=await e),!e)break;this.moovSlice=e,this.readContiguousBoxes(this.moovSlice);for(const t of this.tracks){const e=t.editListPreviousSegmentDurations/this.movieTimescale;t.editListOffset-=Math.round(e*t.timescale)}t=this.isFragmented&&null!==this.reader.fileSize&&this.reader.fileSize>a+s.totalSize,i=!0;break}if("moof"===s.name){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');await this.copyMetadataFromInitInput(this.input._initInput),t=!1,i=!0;break}}e=a+s.totalSize}if(!i&&this.input._initInput&&await this.copyMetadataFromInitInput(this.input._initInput),t){n(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);ce(e)&&(e=await e),n(e);const t=Io(e),i=this.reader.fileSize-t;if(i>=0&&i<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(i,8,16);if(ce(e)&&(e=await e),e){const t=Si(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);ce(i)&&(i=await i),i&&this.readContiguousBoxes(i)}}}}})())}async copyMetadataFromInitInput(e){const t=await e._getDemuxer();if(t.constructor!==Li)throw new Error("Init input must match the input's format.");await t.readMetadata(),this.movieTimescale=t.movieTimescale,this.movieDurationInTimescale=t.movieDurationInTimescale,this.metadataTags=t.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=t.fragmentTrackDefaults,this.psshBoxes=t.psshBoxes;for(const i of t.tracks){const e={id:i.id,demuxer:this,trackBacking:null,disposition:i.disposition,timescale:i.timescale,durationInMediaTimescale:i.durationInMediaTimescale,durationInMovieTimescale:i.durationInMovieTimescale,rotation:i.rotation,internalCodecId:i.internalCodecId,name:i.name,languageCode:i.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:i.editListPreviousSegmentDurations,editListOffset:i.editListOffset,encryptionInfo:i.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:i.info};if(i.trackBacking)if(n(e.info),"video"===e.info.type&&-1!==e.info.width){const t=e;e.trackBacking=new Ui(t),this.tracks.push(e)}else if("audio"===e.info.type&&-1!==e.info.numberOfChannels){const t=e;e.trackBacking=new qi(t),this.tracks.push(e)}}}getSampleTableForTrack(e){if(e.sampleTable)return e.sampleTable;const t={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=t,null===e.sampleTableByteOffset)return t;n(this.moovSlice);const i=this.moovSlice.slice(e.sampleTableByteOffset);this.currentTrack=e,this.traverseBox(i),this.currentTrack=null;if("audio"===e.info?.type&&e.info.codec&&Kt.includes(e.info.codec)&&0===t.sampleCompositionTimeOffsets.length){n("audio"===e.info?.type);const i=si(e.info.codec),r=[],a=[];for(let s=0;se.startIndex),d=t.sampleTimingEntries[u],h=_(t.sampleTimingEntries,l,e=>e.startIndex),f=t.sampleTimingEntries[h],m=d.startDecodeTimestamp+(o-d.startIndex)*d.delta,p=f.startDecodeTimestamp+(l-f.startIndex)*f.delta-m,g=c(r);g&&g.delta===p?g.count++:r.push({startIndex:n.startChunkIndex+s,startDecodeTimestamp:m,count:1,delta:p});const k=n.samplesPerChunk*i.sampleSize*e.info.numberOfChannels;a.push(k)}n.startSampleIndex=n.startChunkIndex,n.samplesPerChunk=1}t.sampleTimingEntries=r,t.sampleSizes=a}if(t.sampleCompositionTimeOffsets.length>0){t.presentationTimestamps=[];for(const e of t.sampleTimingEntries)for(let i=0;ie.presentationTimestamp-t.presentationTimestamp),t.presentationTimestampIndexMap=Array(t.presentationTimestamps.length).fill(-1);for(let e=0;ee.moofOffset===a.moofOffset);if(i)Ki(s,i.timestamp);else{const e=_(t,a.moofOffset-1,e=>e.moofOffset);if(-1!==e){const i=t[e];Ki(s,i.endTimestamp)}}s.startTimestampIsFinal=!0}const i=_(t,s.startTimestamp,e=>e.startTimestamp);if(-1!==i&&t[i].moofOffset===a.moofOffset||t.splice(i+1,0,{moofOffset:a.moofOffset,startTimestamp:s.startTimestamp,endTimestamp:s.endTimestamp}),s.encryptionAuxInfo&&e.encryptionInfo){const t=await Qi(this.reader,e.encryptionInfo,s.encryptionAuxInfo);for(let e=0;e0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;$(t.languageCode)||(t.languageCode=q)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=Do(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:{...v},avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:"soun"===i&&(t.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const t=this.currentTrack;if(!t)break;t.sampleTableByteOffset=K,this.readContiguousBoxes(e.slice(G,X.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=bo(e);e.skip(3);const r=Io(e);for(let a=0;a0&&(1===n?(e.skip(4),c=8*Io(e),e.skip(8)):2===n&&(e.skip(4),l=Ao(e),o=Io(e),e.skip(4),c=Io(e),u=Io(e),e.skip(8))),t.info.numberOfChannels=o,t.info.sampleRate=l,t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+a.totalSize-e.filePos));const d="enca"===s?t.frmaCodecString:s;if(t.frmaCodecString=null,"mp4a"===d);else if("opus"===d)t.info.codec="opus",t.info.sampleRate=ri;else if("flac"===d)t.info.codec="flac";else if("ulaw"===d)t.info.codec="ulaw";else if("alaw"===d)t.info.codec="alaw";else if("ac-3"===d)t.info.codec="ac3";else if("ec-3"===d)t.info.codec="eac3";else if(Zt.includes(d))t.info.codec="dts",t.info.dtsFormat=d;else if("twos"===d)8===c?t.info.codec="pcm-s8":16===c?t.info.codec=t.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(ve._warn(`Unsupported sample size ${c} for codec 'twos'.`),t.info.codec=null);else if("sowt"===d)8===c?t.info.codec="pcm-s8":16===c?t.info.codec="pcm-s16":(ve._warn(`Unsupported sample size ${c} for codec 'sowt'.`),t.info.codec=null);else if("raw "===d)t.info.codec="pcm-u8";else if("in24"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if("in32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if("fl32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if("fl64"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if("ipcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?16===e?t.info.codec="pcm-s16":24===e?t.info.codec="pcm-s24":32===e?t.info.codec="pcm-s32":(ve._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null):16===e?t.info.codec="pcm-s16be":24===e?t.info.codec="pcm-s24be":32===e?t.info.codec="pcm-s32be":(ve._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null)}else if("fpcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?32===e?t.info.codec="pcm-f32":64===e?t.info.codec="pcm-f64":(ve._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(ve._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===d&&null!==u){const e=c+7>>3,i=Boolean(1&u),r=Boolean(2&u),a=4&u?-1:0;c>0&&c<=64&&(i?32===c&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):a&1<0?(t.encryptionInfo.defaultCryptByteBlock=r>>4,t.encryptionInfo.defaultSkipByteBlock=15&r):(t.encryptionInfo.defaultCryptByteBlock=0,t.encryptionInfo.defaultSkipByteBlock=0),t.encryptionInfo.defaultIsProtected=0!==bo(e),t.encryptionInfo.defaultPerSampleIvSize=bo(e),t.encryptionInfo.defaultKid=C(yo(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=bo(e),r=new Uint8Array(16);r.set(yo(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(n(t.info),0===X.contentSize)break;t.info.codecDescription=yo(e,X.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(n(t.info),0===X.contentSize)break;t.info.codecDescription=yo(e,X.contentSize)}break;case"vpcC":{const t=this.currentTrack;if(!t)break;n("video"===t.info?.type),e.skip(4);const i=bo(e),r=bo(e),a=bo(e),s=a>>4,o=a>>1&7,c=1&a,l=bo(e),u=bo(e),d=bo(e);t.info.vp9CodecInfo={profile:i,level:r,bitDepth:s,chromaSubsampling:o,videoFullRangeFlag:c,colourPrimaries:l,transferCharacteristics:u,matrixCoefficients:d}}break;case"av1C":{const t=this.currentTrack;if(!t)break;n("video"===t.info?.type),e.skip(1);const i=bo(e),r=i>>5,a=31&i,s=bo(e),o=s>>7,c=s>>6&1,l=s>>4&1,u=s>>3&1,d=s>>2&1,h=3&s,f=2===r&&c?s>>5&1?12:10:c?10:8;e.skip(1);const m=yo(e,X.contentSize-4),p=kt(m);t.info.av1CodecInfo={profile:r,level:a,tier:o,bitDepth:f,monochrome:l,chromaSubsamplingX:u,chromaSubsamplingY:d,chromaSamplePosition:h,videoFullRangeFlag:p?.videoFullRangeFlag??0,colourPrimaries:p?.colourPrimaries??2,transferCharacteristics:p?.transferCharacteristics??2,matrixCoefficients:p?.matrixCoefficients??2}}break;case"colr":{const t=this.currentTrack;if(!t)break;n("video"===t.info?.type);const i=Do(e,4);if("nclx"!==i&&"nclc"!==i)break;const r=To(e),a=To(e),s=To(e);let o;"nclx"===i&&(o=Boolean(128&bo(e))),t.info.colorSpace={primaries:k[r],transfer:b[a],matrix:T[s],fullRange:o}}break;case"pasp":{const t=this.currentTrack;if(!t)break;n("video"===t.info?.type);const i=Io(e),r=Io(e);i>0&&r>0&&(i>r?t.info.squarePixelWidth=Math.round(t.info.width*i/r):t.info.squarePixelHeight=Math.round(t.info.height*r/i))}break;case"esds":{const t=this.currentTrack;if(!t||"audio"!==t.info?.type)break;e.skip(4);n(3===bo(e)),Ii(e),e.skip(2);const i=bo(e),r=0!==(64&i),a=0!==(32&i);if(0!==(128&i)&&e.skip(2),r){const t=bo(e);e.skip(t)}a&&e.skip(2);n(4===bo(e));const s=Ii(e),o=e.filePos,c=bo(e);if(64===c||103===c?(t.info.codec="aac",t.info.aacCodecInfo={isMpeg2:103===c,objectType:null}):105===c||107===c?t.info.codec="mp3":221===c?t.info.codec="vorbis":169===c?t.info.codec="dts":ve._warn(`Unsupported audio codec (objectTypeIndication ${c}) - discarding track.`),e.skip(12),s>e.filePos-o){n(5===bo(e));const i=Ii(e);if(t.info.codecDescription=yo(e,i),"aac"===t.info.codec){const e=_e(t.info.codecDescription);null!==e.outputNumberOfChannels&&(t.info.numberOfChannels=e.outputNumberOfChannels),null!==e.outputSampleRate&&(t.info.sampleRate=e.outputSampleRate)}}}break;case"enda":{const t=this.currentTrack;if(!t)break;n("audio"===t.info?.type),t.info.pcmLittleEndian=!!(255&To(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;n("audio"===t.info?.type),e.skip(4);const i=bo(e);t.info.pcmLittleEndian=Boolean(1&i),t.info.pcmSampleSize=bo(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;n("audio"===t.info?.type),e.skip(1);const i=bo(e),r=To(e),a=Io(e),s=vo(e),o=bo(e);let c;c=0!==o?yo(e,2+i):new Uint8Array(0);const l=new Uint8Array(19+c.byteLength),u=new DataView(l.buffer);u.setUint32(0,1332770163,!1),u.setUint32(4,1214603620,!1),u.setUint8(8,1),u.setUint8(9,i),u.setUint16(10,r,!0),u.setUint32(12,a,!0),u.setInt16(16,s,!0),u.setUint8(18,o),l.set(c,19),t.info.codecDescription=l,t.info.numberOfChannels=i}break;case"dfLa":{const t=this.currentTrack;if(!t)break;n("audio"===t.info?.type),e.skip(4);const i=127,r=128,a=e.filePos;for(;e.filePos>>12,a=1+(i>>9&7);t.info.sampleRate=r,t.info.numberOfChannels=a,e.skip(20)}else e.skip(s);if(a&r)break}const s=e.filePos;e.filePos=a;const o=yo(e,s-a),c=new Uint8Array(4+o.byteLength);new DataView(c.buffer).setUint32(0,1716281667,!1),c.set(o,4),t.info.codecDescription=c}break;case"dac3":{const t=this.currentTrack;if(!t)break;n("audio"===t.info?.type);const i=yo(e,3),r=new Ce(i),a=r.readBits(2);r.skipBits(8);const s=r.readBits(3),o=r.readBits(1);a<3&&(t.info.sampleRate=Ae[a]),t.info.numberOfChannels=It[s]+o}break;case"dec3":{const t=this.currentTrack;if(!t)break;n("audio"===t.info?.type);const i=(e=>{if(e.length<2)return null;const t=new Ce(e),i=t.readBits(13),r=t.readBits(3),a=[];for(let s=0;s<=r&&!(Math.ceil(t.pos/8)+3>e.length);s++){const e=t.readBits(2),i=t.readBits(5);t.skipBits(1),t.skipBits(1);const r=t.readBits(3),s=t.readBits(3),n=t.readBits(1);t.skipBits(3);const o=t.readBits(4);let c=0;o>0?c=t.readBits(9):t.skipBits(1),a.push({fscod:e,fscod2:null,bsid:i,bsmod:r,acmod:s,lfeon:n,numDepSub:o,chanLoc:c})}return 0===a.length?null:{dataRate:i,substreams:a}})(yo(e,X.contentSize));if(!i){ve._warn("Invalid dec3 box contents, ignoring.");break}const r=_t(i);null!==r&&(t.info.sampleRate=r),t.info.numberOfChannels=Rt(i)}break;case"ddts":{const t=this.currentTrack;if(!t)break;n("audio"===t.info?.type);const i=(e=>{if(e.length<20)return null;const t=f(e),i=t.getUint32(0);if(0===i)return null;const r=new Ce(e);r.seekToByte(13);const a=r.readBits(2);r.skipBits(5);const s=r.readBits(1),n=r.readBits(6);r.skipBits(14),r.skipBits(1),r.skipBits(3);const o=r.readBits(16);let c=null;return 0!==o?c=Vt(o):ne.id===i);if(!r)break;const a=Io(e),s=(12&a)>>2,n=3&a,o=[bo,To,So,Io],c=o[(48&a)>>4],l=o[s],u=o[n],d=Io(e);for(let h=0;he.timestamp-t.timestamp);for(let e=0;e({presentationTimestamp:e.presentationTimestamp,sampleIndex:t})).sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp);for(let a=0;ae.id===u);if(!d)break;const h=this.fragmentTrackDefaults.find(e=>e.trackId===u);this.currentTrack=d,d.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:h?.defaultSampleDescriptionIndex??null,defaultSampleDuration:h?.defaultSampleDuration??null,defaultSampleSize:h?.defaultSampleSize??null,defaultSampleFlags:h?.defaultSampleFlags??null,startTimestamp:null,encryptionAuxInfo:null},i?d.currentFragmentState.baseDataOffset=Eo(e):l&&(d.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),r&&(d.currentFragmentState.sampleDescriptionIndex=Io(e)),a&&(d.currentFragmentState.defaultSampleDuration=Io(e)),s&&(d.currentFragmentState.defaultSampleSize=Io(e)),o&&(d.currentFragmentState.defaultSampleFlags=Io(e)),c&&(d.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;n(t.currentFragmentState);const i=bo(e);e.skip(3);const r=0===i?Io(e):Eo(e);t.currentFragmentState.startTimestamp=r}break;case"trun":{const t=this.currentTrack;if(!t)break;n(this.currentFragment),n(t.currentFragmentState);const i=bo(e),r=So(e),a=Boolean(1&r),s=Boolean(4&r),o=Boolean(256&r),c=Boolean(512&r),l=Boolean(1024&r),u=Boolean(2048&r),d=Io(e);let h=null;a&&(h=Co(e));let f,m=null;s&&(m=Io(e)),this.currentFragment.trackData.has(t.id)?(f=this.currentFragment.trackData.get(t.id),null!==h&&(f.currentOffset=t.currentFragmentState.baseDataOffset+h)):(f={track:t,currentTimestamp:0,currentOffset:t.currentFragmentState.baseDataOffset+(h??0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(t.id,f));for(let p=0;p0&&(a=yo(e,r));const s=Gi(t);s.defaultSampleInfoSize=i,s.sampleSizes=a,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=bo(e);if(1&So(e)){const i=Do(e,4),r=Io(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=Io(e);if(0===r)break;r>1&&ve._warn("Multiple saio entries are not supported; using the first offset only.");let a=0===i?Io(e):Number(Eo(e));this.currentFragment&&(a+=this.currentFragment.moofOffset);Gi(t).offset=a}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;n(this.currentFragment);const i=this.currentFragment.trackData.get(t.id);if(!i)break;e.skip(1);const r=So(e),a=Boolean(2&r),s=Io(e),o=t.encryptionInfo.defaultPerSampleIvSize;n(null!==o);for(let n=0;n0?r.set(yo(e,o),0):r.set(t.encryptionInfo.defaultConstantIv,0);let s=null;if(a){const t=To(e);s=[];for(let i=0;i0&&((L=this.metadataTags).trackNumber??(L.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&((z=this.metadataTags).tracksTotal??(z.tracksTotal=i))}break;case"trkn":if(a instanceof Uint8Array&&a.length>=6){const e=f(a),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&((U=this.metadataTags).trackNumber??(U.trackNumber=t)),i>0&&((W=this.metadataTags).tracksTotal??(W.tracksTotal=i))}break;case"disc":case"disk":if(a instanceof Uint8Array&&a.length>=6){const e=f(a),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&((V=this.metadataTags).discNumber??(V.discNumber=t)),i>0&&((j=this.metadataTags).discsTotal??(j.discsTotal=i))}}}}}return e.filePos=Q,!0}}class zi{constructor(e){this.internalTrack=e,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.tracks)if(r.trackBacking.getType()===t&&i++,r===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const e=this.internalTrack;if(e.durationInMediaTimescale<=0)return null;n(e.trackBacking);const t=await e.trackBacking.getFirstPacket({metadataOnly:!0});return(t?.timestamp??0)+e.durationInMediaTimescale/e.timescale}async getLiveRefreshInterval(){return null}async getFirstPacket(e){const t=await this.fetchPacketForSampleIndex(0,e);return t||!this.internalTrack.demuxer.isFragmented?t:this.performFragmentedLookup(null,e=>e.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,e)}mapTimestampIntoTimescale(e){return W(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}async getPacket(e,t){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a=Wi(r,i),s=await this.fetchPacketForSampleIndex(a,t);return $i(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=_(t.presentationTimestamps,i,e=>e.presentationTimestamp);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id);if(r.sampleIndex+1{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=M(t.presentationTimestamps,e=>t.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=i);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id).samples.findIndex((e,t)=>e.isKeyFrame&&t>r.sampleIndex);if(-1!==t)return{sampleIndex:t,correctSampleFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.samples.findIndex(e=>e.isKeyFrame);return n(-1!==e),{sampleIndex:e,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)}async fetchPacketForSampleIndex(e,t){if(-1===e)return null;const i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=Vi(i,e);if(!r)return null;let a;if(t.metadataOnly)a=yi;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(ce(t)&&(t=await t),!t)return null;if(a=yo(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=await Qi(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);ee.timestamp),d=-1!==u?this.internalTrack.fragmentLookupTable[u]:null,h=_(this.internalTrack.fragmentPositionCache,i,e=>e.startTimestamp),f=-1!==h?this.internalTrack.fragmentPositionCache[h]:null,m=Math.max(d?.moofOffset??0,f?.moofOffset??0)||null;let p;for(e?null===m||e.moofOffset>=m?(p=e.moofOffset+e.moofSize,o=e):p=m:p=m??0;;){if(o){const e=o.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=s.reader.requestSliceRange(p,8,16);if(ce(e)&&(e=await e),!e)break;const i=p,n=Si(e);if(!n)break;if("moof"===n.name){o=await s.readFragment(i);const{sampleIndex:e,correctSampleFound:r}=t(o);if(r)return this.fetchPacketInFragment(o,e,a);-1!==e&&(c=o,l=e)}p=i+n.totalSize}if(d&&(!c||c.moofOffset{var e,t,i,r,a;if("avc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("hevc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("vp9"!==this.internalTrack.info.codec||this.internalTrack.info.vp9CodecInfo&&(2!==(a=this.internalTrack.info.vp9CodecInfo).colourPrimaries||2!==a.transferCharacteristics||2!==a.matrixCoefficients))if("av1"!==this.internalTrack.info.codec||this.internalTrack.info.av1CodecInfo&&(e=>2!==e.colourPrimaries||2!==e.transferCharacteristics||2!==e.matrixCoefficients)(this.internalTrack.info.av1CodecInfo)){if("prores"===this.internalTrack.info.codec&&!this.internalTrack.info.proresCodecInfo){const e=await this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=e&&yt(e.data)}}else{const e=await this.getFirstPacket({}),t=e&&kt(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const e=await this.getFirstPacket({}),t=e&&pt(e.data);t&&(this.internalTrack.info.vp9CodecInfo={...this.internalTrack.info.vp9CodecInfo??t,videoFullRangeFlag:t.videoFullRangeFlag,colourPrimaries:t.colourPrimaries,transferCharacteristics:t.transferCharacteristics,matrixCoefficients:t.matrixCoefficients})}else{const e=await this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=e&&rt(e.data)}else{const e=await this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&Xe(e.data)}if(!S(this.internalTrack.info.colorSpace)){const a=ti(this.internalTrack.info);(e=this.internalTrack.info.colorSpace).primaries??(e.primaries=a.primaries),(t=this.internalTrack.info.colorSpace).transfer??(t.transfer=a.transfer),(i=this.internalTrack.info.colorSpace).matrix??(i.matrix=a.matrix),(r=this.internalTrack.info.colorSpace).fullRange??(r.fullRange=a.fullRange)}const s={codec:ei(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(s.displayAspectWidth=this.internalTrack.info.squarePixelWidth,s.displayAspectHeight=this.internalTrack.info.squarePixelHeight),s})()):null}}class qi extends zi{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&qt(e.data)}return{codec:ii(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})()):null}}const Wi=(e,t)=>{if(e.presentationTimestamps){const i=_(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=_(e.sampleTimingEntries,t,e=>e.startDecodeTimestamp);if(-1===i)return-1;const r=e.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},Hi=(e,t)=>{if(!e.keySampleIndices)return Wi(e,t);if(e.presentationTimestamps){const i=_(e.presentationTimestamps,t,e=>e.presentationTimestamp);if(-1===i)return-1;for(let t=i;t>=0;t--){const i=e.presentationTimestamps[t].sampleIndex;if(-1!==E(e.keySampleIndices,i,e=>e))return i}return-1}{const i=Wi(e,t),r=_(e.keySampleIndices,i,e=>e);return e.keySampleIndices[r]??-1}},Vi=(e,t)=>{const i=_(e.sampleTimingEntries,t,e=>e.startIndex),r=e.sampleTimingEntries[i];if(!r||r.startIndex+r.count<=t)return null;let a=r.startDecodeTimestamp+(t-r.startIndex)*r.delta;const s=_(e.sampleCompositionTimeOffsets,t,e=>e.startIndex),o=e.sampleCompositionTimeOffsets[s];o&&t-o.startIndexe.startSampleIndex),u=e.sampleToChunk[l];n(u);const d=u.startChunkIndex+Math.floor((t-u.startSampleIndex)/u.samplesPerChunk),h=e.chunkOffsets[d],f=u.startSampleIndex+(d-u.startChunkIndex)*u.samplesPerChunk;let m=0,p=h;if(1===e.sampleSizes.length)p+=c*(t-f),m+=c*u.samplesPerChunk;else for(let n=f;ne)}},ji=(e,t)=>{if(!e.keySampleIndices)return t+1;const i=_(e.keySampleIndices,t,e=>e);return e.keySampleIndices[i+1]??-1},Ki=(e,t)=>{e.startTimestamp+=t,e.endTimestamp+=t;for(const i of e.samples)i.presentationTimestamp+=t;for(const i of e.presentationTimestamps)i.presentationTimestamp+=t},Xi=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},$i=e=>0===e.sampleSizes.length,Gi=e=>{var t;return e.currentFragmentState?(t=e.currentFragmentState).encryptionAuxInfo??(t.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}):e.encryptionAuxInfo??(e.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null})},Qi=async(e,t,i)=>{if(i.resolved)return i.resolved;if(null===i.offset||0===i.sampleCount)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let r=0;if(i.defaultSampleInfoSize>0)r=i.defaultSampleInfoSize*i.sampleCount;else{n(i.sampleSizes);for(let e=0;e0?i.defaultSampleInfoSize:i.sampleSizes[n],r=new Uint8Array(16);s>0?r.set(yo(a,s),0):r.set(t.defaultConstantIv,0);let c=null;if(e>s){const e=To(a);c=[];for(let t=0;te.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,Ji=async(e,t,i,r)=>{n(e.encryptionInfo);const a=e.encryptionInfo;n(null!==a.defaultKid);const s=a.defaultKid;let o;const c=e.demuxer.decryptionKeyCache.get(s);if(c)o=await c;else{if(!e.demuxer.input._formatOptions.isobmff?.resolveKeyId)throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const t=(async()=>{let t=e.demuxer.psshBoxes;if(r){t=[...t,...r.psshBoxes].filter(e=>null===e.keyIds||e.keyIds.includes(s));for(let e=0;e{n(e.length%2===0);const t=new Uint8Array(e.length/2);for(let i=0;i{const a=new Uint8Array(16);a.set(i.iv,0);const s=await crypto.subtle.importKey("raw",e,{name:"AES-CTR"},!1,["decrypt"]),o=async e=>{const t=await crypto.subtle.decrypt({name:"AES-CTR",counter:a,length:64},s,e);return new Uint8Array(t)};if(!i.subsamples)return o(r);n(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const c=tr(i.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock);let l=0;for(const n of c)for(const e of n.perSubsample)l+=e.length;const u=new Uint8Array(l);let d=0;for(const n of c)for(const e of n.perSubsample)u.set(r.subarray(e.offset,e.offset+e.length),d),d+=e.length;const h=await o(u),f=new Uint8Array(r);let m=0;for(const n of c)for(const e of n.perSubsample)f.set(h.subarray(m,m+e.length),e.offset),m+=e.length;return f},er=(e,t,i,r)=>{const a=new Oi;a.init({key:e,iv:i.iv});const s=t.defaultCryptByteBlock,o=t.defaultSkipByteBlock;if(n(null!==s&&null!==o),!i.subsamples){const e=new Uint8Array(r),t=Math.floor(r.length/16);for(let i=0;i{const r=[],a=0!==t||0!==i;let s=0;for(const n of e){s+=n.clearLen;const e=[];if(a){let r=n.protectedLen,a=s;for(;r>0&&!(r<16*t);){const s=16*t;e.push({offset:a,length:s}),a+=s,r-=s;const n=Math.min(16*i,r);a+=n,r-=n}s+=n.protectedLen}else n.protectedLen>0&&e.push({offset:s,length:n.protectedLen}),s+=n.protectedLen;r.push({perSubsample:e})}return r};var ir,rr;(rr=ir||(ir={}))[rr.EBML=440786851]="EBML",rr[rr.EBMLVersion=17030]="EBMLVersion",rr[rr.EBMLReadVersion=17143]="EBMLReadVersion",rr[rr.EBMLMaxIDLength=17138]="EBMLMaxIDLength",rr[rr.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",rr[rr.DocType=17026]="DocType",rr[rr.DocTypeVersion=17031]="DocTypeVersion",rr[rr.DocTypeReadVersion=17029]="DocTypeReadVersion",rr[rr.Void=236]="Void",rr[rr.Segment=408125543]="Segment",rr[rr.SeekHead=290298740]="SeekHead",rr[rr.Seek=19899]="Seek",rr[rr.SeekID=21419]="SeekID",rr[rr.SeekPosition=21420]="SeekPosition",rr[rr.Duration=17545]="Duration",rr[rr.Info=357149030]="Info",rr[rr.TimestampScale=2807729]="TimestampScale",rr[rr.MuxingApp=19840]="MuxingApp",rr[rr.WritingApp=22337]="WritingApp",rr[rr.Tracks=374648427]="Tracks",rr[rr.TrackEntry=174]="TrackEntry",rr[rr.TrackNumber=215]="TrackNumber",rr[rr.TrackUID=29637]="TrackUID",rr[rr.TrackType=131]="TrackType",rr[rr.FlagEnabled=185]="FlagEnabled",rr[rr.FlagDefault=136]="FlagDefault",rr[rr.FlagForced=21930]="FlagForced",rr[rr.FlagOriginal=21934]="FlagOriginal",rr[rr.FlagHearingImpaired=21931]="FlagHearingImpaired",rr[rr.FlagVisualImpaired=21932]="FlagVisualImpaired",rr[rr.FlagCommentary=21935]="FlagCommentary",rr[rr.FlagLacing=156]="FlagLacing",rr[rr.Name=21358]="Name",rr[rr.Language=2274716]="Language",rr[rr.LanguageBCP47=2274717]="LanguageBCP47",rr[rr.CodecID=134]="CodecID",rr[rr.CodecPrivate=25506]="CodecPrivate",rr[rr.CodecDelay=22186]="CodecDelay",rr[rr.SeekPreRoll=22203]="SeekPreRoll",rr[rr.DefaultDuration=2352003]="DefaultDuration",rr[rr.Video=224]="Video",rr[rr.PixelWidth=176]="PixelWidth",rr[rr.PixelHeight=186]="PixelHeight",rr[rr.DisplayWidth=21680]="DisplayWidth",rr[rr.DisplayHeight=21690]="DisplayHeight",rr[rr.DisplayUnit=21682]="DisplayUnit",rr[rr.AlphaMode=21440]="AlphaMode",rr[rr.Audio=225]="Audio",rr[rr.SamplingFrequency=181]="SamplingFrequency",rr[rr.Channels=159]="Channels",rr[rr.BitDepth=25188]="BitDepth",rr[rr.SimpleBlock=163]="SimpleBlock",rr[rr.BlockGroup=160]="BlockGroup",rr[rr.Block=161]="Block",rr[rr.BlockAdditions=30113]="BlockAdditions",rr[rr.BlockMore=166]="BlockMore",rr[rr.BlockAdditional=165]="BlockAdditional",rr[rr.BlockAddID=238]="BlockAddID",rr[rr.BlockDuration=155]="BlockDuration",rr[rr.ReferenceBlock=251]="ReferenceBlock",rr[rr.Cluster=524531317]="Cluster",rr[rr.Timestamp=231]="Timestamp",rr[rr.Cues=475249515]="Cues",rr[rr.CuePoint=187]="CuePoint",rr[rr.CueTime=179]="CueTime",rr[rr.CueTrackPositions=183]="CueTrackPositions",rr[rr.CueTrack=247]="CueTrack",rr[rr.CueClusterPosition=241]="CueClusterPosition",rr[rr.Colour=21936]="Colour",rr[rr.MatrixCoefficients=21937]="MatrixCoefficients",rr[rr.TransferCharacteristics=21946]="TransferCharacteristics",rr[rr.Primaries=21947]="Primaries",rr[rr.Range=21945]="Range",rr[rr.Projection=30320]="Projection",rr[rr.ProjectionType=30321]="ProjectionType",rr[rr.ProjectionPoseRoll=30325]="ProjectionPoseRoll",rr[rr.Attachments=423732329]="Attachments",rr[rr.AttachedFile=24999]="AttachedFile",rr[rr.FileDescription=18046]="FileDescription",rr[rr.FileName=18030]="FileName",rr[rr.FileMediaType=18016]="FileMediaType",rr[rr.FileData=18012]="FileData",rr[rr.FileUID=18094]="FileUID",rr[rr.Chapters=272869232]="Chapters",rr[rr.Tags=307544935]="Tags",rr[rr.Tag=29555]="Tag",rr[rr.Targets=25536]="Targets",rr[rr.TargetTypeValue=26826]="TargetTypeValue",rr[rr.TargetType=25546]="TargetType",rr[rr.TagTrackUID=25541]="TagTrackUID",rr[rr.TagEditionUID=25545]="TagEditionUID",rr[rr.TagChapterUID=25540]="TagChapterUID",rr[rr.TagAttachmentUID=25542]="TagAttachmentUID",rr[rr.SimpleTag=26568]="SimpleTag",rr[rr.TagName=17827]="TagName",rr[rr.TagLanguage=17530]="TagLanguage",rr[rr.TagString=17543]="TagString",rr[rr.TagBinary=17541]="TagBinary",rr[rr.ContentEncodings=28032]="ContentEncodings",rr[rr.ContentEncoding=25152]="ContentEncoding",rr[rr.ContentEncodingOrder=20529]="ContentEncodingOrder",rr[rr.ContentEncodingScope=20530]="ContentEncodingScope",rr[rr.ContentCompression=20532]="ContentCompression",rr[rr.ContentCompAlgo=16980]="ContentCompAlgo",rr[rr.ContentCompSettings=16981]="ContentCompSettings",rr[rr.ContentEncryption=20533]="ContentEncryption";const ar=[ir.EBML,ir.Segment],sr=[ir.SeekHead,ir.Info,ir.Cluster,ir.Tracks,ir.Cues,ir.Attachments,ir.Chapters,ir.Tags],nr=[...ar,...sr],or=16,cr=e=>{if(e.remainingLength<1)return null;const t=bo(e);if(e.skip(-1),0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;return e.remainingLength{if(e.remainingLength<1)return null;const t=bo(e);if(0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;if(e.remainingLength{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let i=0;for(let r=0;r{const t=cr(e);if(null===t)return null;if(e.remainingLength{if(e.remainingLength<1)return null;if(255===bo(e))return;e.skip(-1);const t=lr(e);return null===t?null:72057594037927940!==t?t:void 0},fr=e=>{n(e.remainingLength>=2);const t=dr(e);if(null===t)return null;const i=hr(e);return null===i?null:{id:t,size:i}},mr=(e,t)=>{const i=yo(e,t);let r=0;for(;r{const i=yo(e,t);let r=0;for(;r{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?Fo(e):Ao(e)},kr=async(e,t,i,r)=>{const a=new Set(i);let s=t;for(;null===r||ss?r:s,found:!1}},yr=async(e,t,i,r)=>{const a=new Set(i);let s=t;for(;se.tracks.map(e=>e.trackBacking))}async getMimeType(){await this.readMetadata();const e=await this.getTrackBackings(),t=await Promise.all(e.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings.filter(Boolean))].join(", ")}"`);return t})({isWebM:this.isWebM,hasVideo:this.segments.some(e=>e.tracks.some(e=>"video"===e.info?.type)),hasAudio:this.segments.some(e=>e.tracks.some(e=>"audio"===e.info?.type)),codecStrings:t.filter(Boolean)})}async getMetadataTags(){await this.readMetadata();for(const t of this.segments)t.metadataTagsCollected||(null!==this.reader.fileSize&&await this.loadSegmentMetadata(t),t.metadataTagsCollected=!0);let e={};for(const t of this.segments)e={...e,...t.metadataTags};return e}readMetadata(){return this.readMetadataPromise??(this.readMetadataPromise=(async()=>{let e=0;for(;;){let t=this.reader.requestSliceRange(e,2,or);if(ce(t)&&(t=await t),!t)break;const i=fr(t);if(!i)break;const r=i.id;let a=i.size;const s=t.filePos;if(r===ir.EBML){Ar(a);let e=this.reader.requestSlice(s,a);if(ce(e)&&(e=await e),!e)break;this.readContiguousElements(e)}else if(r===ir.Segment){if(await this.readSegment(s,a),void 0===a)break;if(null===this.reader.fileSize)break}else if(r===ir.Cluster){if(null===this.reader.fileSize)break;if(void 0===a){a=(await kr(this.reader,s,nr,this.reader.fileSize)).pos-s}const e=c(this.segments);e&&(e.elementEndPos=s+a)}Ar(a),e=s+a}})())}async readSegment(e,t){this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:void 0===t?null:e+t,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let i=e;for(;null===this.currentSegment.elementEndPos||ie.id===a);if(-1!==o){const e=Ur[o].flag;this.currentSegment[e]=!0,Ar(s);let t=this.reader.requestSlice(n,s);ce(t)&&(t=await t),t&&this.readContiguousElements(t)}else if(a===ir.Tags||a===ir.Attachments){a===ir.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,Ar(s);let e=this.reader.requestSlice(n,s);ce(e)&&(e=await e),e&&this.readContiguousElements(e)}else if(a===ir.Cluster){this.currentSegment.clusterSeekStartPos=t;break}if(void 0===s)break;i=n+s}if(this.currentSegment.seekEntries.sort((e,t)=>e.segmentPosition-t.segmentPosition),null!==this.reader.fileSize)for(const n of this.currentSegment.seekEntries){const t=Ur.find(e=>e.id===n.id);if(!t)continue;if(this.currentSegment[t.flag])continue;let i=this.reader.requestSliceRange(e+n.segmentPosition,2,or);if(ce(i)&&(i=await i),!i)continue;const r=fr(i);if(!r)continue;const{id:a,size:s}=r;if(a!==t.id)continue;Ar(s),this.currentSegment[t.flag]=!0;let o=this.reader.requestSlice(i.filePos,s);ce(o)&&(o=await o),o&&this.readContiguousElements(o)}-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3);for(const n of this.currentSegment.tracks)null!==n.defaultDurationNs&&(n.defaultDuration=this.currentSegment.timestampFactor*n.defaultDurationNs/1e9);const r=new Map(this.currentSegment.tracks.map(e=>[e.id,e]));for(const n of this.currentSegment.cuePoints){const e=r.get(n.trackId);e&&e.cuePoints.push(n)}for(const n of this.currentSegment.tracks){n.cuePoints.sort((e,t)=>e.time-t.time);for(let e=0;es&&(s=n.cuePoints.length,a=n);for(const n of this.currentSegment.tracks)0===n.cuePoints.length&&(n.cuePoints=a.cuePoints);this.currentSegment=null}async readCluster(e,t){if(t.lastReadCluster?.elementStartPos===e)return t.lastReadCluster;let i=this.reader.requestSliceRange(e,2,or);ce(i)&&(i=await i),n(i);const r=e,a=fr(i);n(a);n(a.id===ir.Cluster);let s=a.size;const o=i.filePos;if(void 0===s){s=(await kr(this.reader,o,nr,t.elementEndPos)).pos-o}let l=this.reader.requestSlice(o,s);ce(l)&&(l=await l);const u={segment:t,elementStartPos:r,elementEndPos:o+s,dataStartPos:o,timestamp:-1,trackData:new Map};if(this.currentCluster=u,l){const e=this.readContiguousElements(l,nr);u.elementEndPos=e}for(const[,d]of u.trackData){const e=d.track;n(d.blocks.length>0);let t=!1;for(let r=0;r({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp);for(let r=0;r({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp));const i=d.blocks[d.presentationTimestamps[0].blockIndex],a=d.blocks[c(d.presentationTimestamps).blockIndex];d.startTimestamp=i.timestamp,d.endTimestamp=a.timestamp+a.duration;const s=_(e.clusterPositionCache,d.startTimestamp,e=>e.startTimestamp);-1!==s&&e.clusterPositionCache[s].elementStartPos===r||e.clusterPositionCache.splice(s+1,0,{elementStartPos:u.elementStartPos,startTimestamp:d.startTimestamp})}return t.lastReadCluster=u,u}getTrackDataInCluster(e,t){let i=e.trackData.get(t);if(!i){const r=e.segment.tracks.find(e=>e.id===t);if(!r)return null;i={track:r,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,i)}return i}expandLacedBlocks(e,t){for(let i=0;i=2;){const i=e.filePos;if(!this.traverseElement(e,t))return i}return e.filePos}traverseElement(e,t){const i=fr(e);if(!i)return!1;if(t&&t.includes(i.id))return!1;const{id:r,size:a}=i,s=e.filePos;switch(Ar(a),r){case ir.DocType:this.isWebM="webm"===mr(e,a);break;case ir.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(s,a)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case ir.SeekID:{const t=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=ur(e,a)}break;case ir.SeekPosition:{const t=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=ur(e,a)}break;case ir.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=ur(e,a),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case ir.Duration:if(!this.currentSegment)break;this.currentSegment.duration=gr(e,a);break;case ir.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:{...xe,primary:!1},trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(s,a)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>"decompress"!==e.data?.type||e.scope!==Nr.Block||e.data.algorithm!==Lr.HeaderStripping)&&(ve._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){const e=this.currentTrack.codecId.indexOf("/"),t=-1===e?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,e);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,null!==this.currentTrack.info.displayWidth&&null!==this.currentTrack.info.displayHeight){const e=this.currentTrack.info.displayWidth*this.currentTrack.info.height,t=this.currentTrack.info.displayHeight*this.currentTrack.info.width;e>0&&t>0&&(e>t?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*e/t):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*t/e))}if(this.currentTrack.codecId===br)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===wr)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===Tr)this.currentTrack.info.codec="vp8";else if(t===Sr)this.currentTrack.info.codec="vp9";else if(t===vr)this.currentTrack.info.codec="av1";else if(t===Pr){const e=this.currentTrack.codecPrivate?m.decode(this.currentTrack.codecPrivate):"";Jt.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new Vr(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===Ir?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===xr?this.currentTrack.info.codec="mp3":t===Cr?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=ri):t===Br?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Er?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===_r?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Rr?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Fr?(this.currentTrack.info.codec="dts","A_DTS/EXPRESS"===this.currentTrack.codecId?this.currentTrack.info.dtsFormat="dtse":"A_DTS/LOSSLESS"===this.currentTrack.codecId&&(this.currentTrack.info.dtsFormat="dtsl")):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));const e=this.currentTrack;this.currentTrack.trackBacking=new jr(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case ir.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=ur(e,a);break;case ir.TrackType:{if(!this.currentTrack)break;const t=ur(e,a);1===t?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:{...v},alphaMode:!1,proresFormat:null}:2===t&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case ir.FlagEnabled:if(!this.currentTrack)break;ur(e,a)||(this.currentTrack=null);break;case ir.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!ur(e,a);break;case ir.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!ur(e,a);break;case ir.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!ur(e,a);break;case ir.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!ur(e,a);break;case ir.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!ur(e,a);break;case ir.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!ur(e,a);break;case ir.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=mr(e,a);break;case ir.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=yo(e,a);break;case ir.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=ur(e,a);break;case ir.Name:if(!this.currentTrack)break;this.currentTrack.name=pr(e,a);break;case ir.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=mr(e,a),$(this.currentTrack.languageCode)||(this.currentTrack.languageCode=q);break;case ir.LanguageBCP47:{if(!this.currentTrack)break;const t=mr(e,a).split("-")[0];this.currentTrack.languageCode=t||q,this.currentTrack.hasLanguageBcp47=!0}break;case ir.Video:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case ir.PixelWidth:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.width=ur(e,a);break;case ir.PixelHeight:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.height=ur(e,a);break;case ir.DisplayWidth:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayWidth=ur(e,a);break;case ir.DisplayHeight:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayHeight=ur(e,a);break;case ir.DisplayUnit:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.displayUnit=ur(e,a);break;case ir.AlphaMode:if("video"!==this.currentTrack?.info?.type)break;this.currentTrack.info.alphaMode=1===ur(e,a);break;case ir.Colour:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case ir.MatrixCoefficients:{if("video"!==this.currentTrack?.info?.type)break;const t=ur(e,a),i=T[t];this.currentTrack.info.colorSpace.matrix=i}break;case ir.Range:{if("video"!==this.currentTrack?.info?.type)break;const t=ur(e,a);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case ir.TransferCharacteristics:{if("video"!==this.currentTrack?.info?.type)break;const t=ur(e,a),i=b[t];this.currentTrack.info.colorSpace.transfer=i}break;case ir.Primaries:{if("video"!==this.currentTrack?.info?.type)break;const t=ur(e,a),i=k[t];this.currentTrack.info.colorSpace.primaries=i}break;case ir.Projection:if("video"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case ir.ProjectionPoseRoll:{if("video"!==this.currentTrack?.info?.type)break;const t=-gr(e,a);try{this.currentTrack.info.rotation=o(t)}catch{}}break;case ir.Audio:if("audio"!==this.currentTrack?.info?.type)break;this.readContiguousElements(e.slice(s,a));break;case ir.SamplingFrequency:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.sampleRate=gr(e,a);break;case ir.Channels:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.numberOfChannels=ur(e,a);break;case ir.BitDepth:if("audio"!==this.currentTrack?.info?.type)break;this.currentTrack.info.bitDepth=ur(e,a);break;case ir.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(s,a)),this.currentCueTime=null;break;case ir.CueTime:this.currentCueTime=ur(e,a);break;case ir.CueTrackPositions:{if(null===this.currentCueTime)break;n(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(s,a)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case ir.CueTrack:{const t=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=ur(e,a)}break;case ir.CueClusterPosition:{const t=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;n(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+ur(e,a)}break;case ir.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=ur(e,a);break;case ir.SimpleBlock:{if(!this.currentCluster)break;const t=lr(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=vo(e),n=bo(e),o=n>>1&3;let c=!!(128&n);"audio"===i.track.info?.type&&i.track.info.codec&&(c=!0);const l=yo(e,a-(e.filePos-s)),u=i.track.decodingInstructions.length>0;i.blocks.push({timestamp:r,duration:0,isKeyFrame:c,data:l,lacing:o,decoded:!u,postProcessed:!1,mainAdditional:null})}break;case ir.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(s,a)),this.currentBlock=null;break;case ir.Block:{if(!this.currentCluster)break;const t=lr(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=vo(e),n=bo(e)>>1&3,o=yo(e,a-(e.filePos-s)),c=i.track.decodingInstructions.length>0;this.currentBlock={timestamp:r,duration:0,isKeyFrame:!0,data:o,lacing:n,decoded:!c,postProcessed:!1,mainAdditional:null},i.blocks.push(this.currentBlock)}break;case ir.BlockAdditions:this.readContiguousElements(e.slice(s,a));break;case ir.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(s,a)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case ir.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=yo(e,a);break;case ir.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=ur(e,a);break;case ir.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=ur(e,a);break;case ir.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case ir.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(s,a));break;case ir.Targets:this.readContiguousElements(e.slice(s,a));break;case ir.TargetTypeValue:50!==ur(e,a)&&(this.currentTagTargetIsMovie=!1);break;case ir.TagTrackUID:case ir.TagEditionUID:case ir.TagChapterUID:case ir.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case ir.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(s,a));break;case ir.TagName:this.currentSimpleTagName=pr(e,a);break;case ir.TagString:{if(!this.currentSimpleTagName)break;const t=pr(e,a);this.processTagValue(this.currentSimpleTagName,t)}break;case ir.TagBinary:{if(!this.currentSimpleTagName)break;const t=yo(e,a);this.processTagValue(this.currentSimpleTagName,t)}break;case ir.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(s,a));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(t.raw??(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new Ie(this.currentAttachedFile.fileData,this.currentAttachedFile.fileMediaType??void 0,this.currentAttachedFile.fileName??void 0,this.currentAttachedFile.fileDescription??void 0)),this.currentAttachedFile.fileMediaType?.startsWith("image/")&&this.currentAttachedFile.fileData){const e=this.currentAttachedFile.fileName;let i="unknown";if(e){const t=e.toLowerCase();t.startsWith("cover.")?i="coverFront":t.startsWith("back.")&&(i="coverBack")}t.images??(t.images=[]),t.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:i,name:this.currentAttachedFile.fileName??void 0,description:this.currentAttachedFile.fileDescription??void 0})}this.currentAttachedFile=null}break;case ir.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=((e,t)=>{if(t<1)throw new Error("Bad unsigned int size "+t);let i=0n;for(let r=0;rt.order-e.order);break;case ir.ContentEncoding:this.currentDecodingInstruction={order:0,scope:Nr.Block,data:null},this.readContiguousElements(e.slice(s,a)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case ir.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=ur(e,a);break;case ir.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=ur(e,a);break;case ir.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:Lr.Zlib,settings:null},this.readContiguousElements(e.slice(s,a));break;case ir.ContentCompAlgo:if("decompress"!==this.currentDecodingInstruction?.data?.type)break;this.currentDecodingInstruction.data.algorithm=ur(e,a);break;case ir.ContentCompSettings:if("decompress"!==this.currentDecodingInstruction?.data?.type)break;this.currentDecodingInstruction.data.settings=yo(e,a);break;case ir.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=s+a,!0}decodeBlockData(e,t){n(e.decodingInstructions.length>0);let i=t;for(const r of e.decodingInstructions)if(n(r.data),"decompress"===r.data.type)if(r.data.algorithm===Lr.HeaderStripping)if(r.data.settings&&r.data.settings.length>0){const e=r.data.settings,t=new Uint8Array(e.length+i.length);t.set(e,0),t.set(i,e.length),i=t}return i}processTagValue(e,t){var i;if(!this.currentSegment?.metadataTags)return;const r=this.currentSegment.metadataTags;if(r.raw??(r.raw={}),(i=r.raw)[e]??(i[e]=t),"string"===typeof t)switch(e.toLowerCase()){case"title":r.title??(r.title=t);break;case"description":r.description??(r.description=t);break;case"artist":r.artist??(r.artist=t);break;case"album":r.album??(r.album=t);break;case"album_artist":r.albumArtist??(r.albumArtist=t);break;case"genre":r.genre??(r.genre=t);break;case"comment":r.comment??(r.comment=t);break;case"lyrics":r.lyrics??(r.lyrics=t);break;case"date":{const e=new Date(t);Number.isNaN(e.getTime())||(r.date??(r.date=e))}break;case"track_number":case"part_number":{const e=t.split("/"),i=Number.parseInt(e[0],10),a=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(r.trackNumber??(r.trackNumber=i)),a&&Number.isInteger(a)&&a>0&&(r.tracksTotal??(r.tracksTotal=a))}break;case"disc_number":case"disc":{const e=t.split("/"),i=Number.parseInt(e[0],10),a=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(r.discNumber??(r.discNumber=i)),a&&Number.isInteger(a)&&a>0&&(r.discsTotal??(r.discsTotal=a))}}}async getDurationFromMetadata(e){if(e.duration<=0)return null;let t=null;for(const r of e.tracks){n(r.trackBacking);const e=await r.trackBacking.getFirstPacket({metadataOnly:!0});e&&(t=Math.min(t??1/0,e.timestamp))}let i=e.duration/e.timestampFactor;return i+=t??0,i}}class Hr{constructor(e){this.internalTrack=e,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.segments)for(const e of r.tracks)if(e.trackBacking.getType()===t&&i++,e===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)}async getLiveRefreshInterval(){return null}async getFirstPacket(e){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,e)}intoTimescale(e){return W(e*this.internalTrack.segment.timestampFactor)}async getPacket(e,t){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=_(t.presentationTimestamps,i,e=>e.timestamp);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id);if(i.blockIndex+1{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=M(t.presentationTimestamps,e=>t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=i);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id).blocks.findIndex((e,t)=>e.isKeyFrame&&t>i.blockIndex);if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.blocks.findIndex(e=>e.isKeyFrame);return n(-1!==e),{blockIndex:e,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)}async fetchPacketInCluster(e,t,i){if(-1===t)return null;const r=e.trackData.get(this.internalTrack.id).blocks[t];if(n(r),r.decoded||(r.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,r.data),r.decoded=!0),!r.postProcessed){if("prores"===this.internalTrack.info?.codec){if(!(r.data.length>=8&&105===r.data[4]&&99===r.data[5]&&112===r.data[6]&&102===r.data[7])){const e=new Uint8Array(r.data.length+8);f(e).setUint32(0,e.length,!1),e[4]=105,e[5]=99,e[6]=112,e[7]=102,e.set(r.data,8),r.data=e}}r.postProcessed=!0}const a=i.metadataOnly?yi:r.data,s=r.timestamp/this.internalTrack.segment.timestampFactor,o=r.duration/this.internalTrack.segment.timestampFactor,c={};r.mainAdditional&&"video"===this.internalTrack.info?.type&&this.internalTrack.info.alphaMode&&(c.alpha=i.metadataOnly?yi:r.mainAdditional,c.alphaByteLength=r.mainAdditional.byteLength);const l=new bi(a,r.isKeyFrame?"key":"delta",s,o,e.dataStartPos+t,r.data.byteLength,c);return this.packetToClusterLocation.set(l,{cluster:e,blockIndex:t}),l}async performClusterLookup(e,t,i,r,a){const{demuxer:s,segment:o}=this.internalTrack;let c=null,l=null,u=-1;if(e){const{blockIndex:i,correctBlockFound:r}=t(e);if(r)return this.fetchPacketInCluster(e,i,a);-1!==i&&(l=e,u=i)}const d=_(this.internalTrack.cuePoints,i,e=>e.time),h=-1!==d?this.internalTrack.cuePoints[d]:null,f=_(this.internalTrack.clusterPositionCache,i,e=>e.startTimestamp),m=-1!==f?this.internalTrack.clusterPositionCache[f]:null,p=Math.max(h?.clusterPosition??0,m?.elementStartPos??0)||null;let g;for(e?null===p||e.elementStartPos>=p?(g=e.elementEndPos,c=e):g=p:g=p??o.clusterSeekStartPos;null===o.elementEndPos||g<=o.elementEndPos-2;){if(c){const e=c.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=s.reader.requestSliceRange(g,2,or);if(ce(e)&&(e=await e),!e)break;const i=g,d=fr(e);if(!d||!sr.includes(d.id)&&d.id!==ir.Void){const e=await yr(s.reader,i,sr,Math.min(o.elementEndPos??1/0,i+qr));if(e){g=e;continue}break}const h=d.id;let f=d.size;const m=e.filePos;if(h===ir.Cluster){c=await s.readCluster(i,o),f=c.elementEndPos-m;const{blockIndex:e,correctBlockFound:r}=t(c);if(r)return this.fetchPacketInCluster(c,e,a);-1!==e&&(l=c,u=e)}if(void 0===f){n(h!==ir.Cluster);f=(await kr(s.reader,m,nr,o.elementEndPos)).pos-m}const p=m+f;if(null===o.elementEndPos){let e=s.reader.requestSliceRange(p,2,or);if(ce(e)&&(e=await e),!e)break;if(dr(e)===ir.Segment){o.elementEndPos=p;break}}g=p}if(h&&(!l||l.elementStartPos{var e,t,i,r;let a=null;("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"prores"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription)&&(a=await this.getFirstPacket({}));const s={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:"avc"===this.internalTrack.info.codec&&a?Xe(a.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&a?rt(a.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&a?pt(a.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&a?kt(a.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&a?yt(a.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!S(this.internalTrack.info.colorSpace)){const a=ti(s);(e=this.internalTrack.info.colorSpace).primaries??(e.primaries=a.primaries),(t=this.internalTrack.info.colorSpace).transfer??(t.transfer=a.transfer),(i=this.internalTrack.info.colorSpace).matrix??(i.matrix=a.matrix),(r=this.internalTrack.info.colorSpace).fullRange??(r.fullRange=a.fullRange)}const n={codec:ei(s),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(n.displayAspectWidth=this.internalTrack.info.squarePixelWidth,n.displayAspectHeight=this.internalTrack.info.squarePixelHeight),n})()):null}}class jr extends Hr{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??(this.decoderConfigPromise=(async()=>{if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&qt(e.data)}return{codec:ii({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})()):null}}const Kr=async(e,t,i,r=null)=>{let a=t;for(;null===i||a=4;){const t=s.filePos,i=Io(s),n=null!==e.fileSize?e.fileSize-a:null,o=hi(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&gi(o.header.channel)===gi(r.channel)))return{header:o.header,startPos:a};s.filePos=t+o.bytesAdvanced,a=s.filePos}}return null};class Xr extends ki{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.xingFrameHeader=null,this.xingFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new I,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new $r(this)]})())}async advanceReader(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,qo);if(ce(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=jo(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=await Kr(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e)return void(this.lastSampleLoaded=!0);const t=e.header;this.lastLoadedPos=e.startPos+t.totalSize-1;const i=di(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(ce(r)&&(r=await r),r){const a=Io(r);if(a===li||a===ui){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(ce(t)&&(t=await t),t){const e=yo(t,12),i=f(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&mi.FrameCount?i.getUint32(4,!1):null,fileSize:r&mi.FileSize?i.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=t,this.firstFrameHeaderPos=e.startPos);const a=t.audioSamplesInFrame/this.firstFrameHeader.sampleRate,s={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:a,dataStart:e.startPos,dataSize:t.totalSize};this.loadedSamples.push(s),this.nextTimestampInSamples+=t.audioSamplesInFrame}async getMimeType(){return"audio/mpeg"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0,t=!1;for(;;){let i=this.reader.requestSlice(e,qo);if(ce(i)&&(i=await i),!i)break;const r=jo(i);if(!r)break;t=!0;let a=this.reader.requestSlice(i.filePos,r.size);if(ce(a)&&(a=await a),!a)break;Ko(a,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=Uo){let e=this.reader.requestSlice(this.reader.fileSize-Uo,Uo);ce(e)&&(e=await e),n(e);"TAG"===Do(e,3)&&Ho(e,this.metadataTags)}return this.metadataTags}finally{e()}}}class $r{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return n(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){const e=this.demuxer;if(n(null!==e.firstFrameHeader),n(null!==e.firstFrameHeaderPos),e.xingData){if(null!==e.xingData.frameCount)return e.xingData.frameCount*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}else if(null!==e.reader.fileSize){const s=(t=e.firstFrameHeader.lowSamplingFrequency,i=e.firstFrameHeader.layer,r=e.firstFrameHeader.bitrate,a=e.firstFrameHeader.sampleRate,0===i?0:1===i?144*r/(a<e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}}async getPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=_(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1>>0&4294967295}const Yr=e=>{const t=f(e),i=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let a=0;a>>24^t])>>>0}return t.setUint32(22,i,!0),r},Jr=(e,t,i)=>{let r=0,a=null;if(e.length>0)if("vorbis"===t.codec){n(t.vorbisInfo);const s=(1<<(e=>{let t=0;for(;e;)t++,e>>=1;return t})(t.vorbisInfo.modeBlockflags.length-1))-1<<1,o=(e[0]&s)>>1;if(o>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let c=i;const l=t.vorbisInfo.modeBlockflags[o];if(a=t.vorbisInfo.blocksizes[l],1===l){const i=1+(1|s),r=e[0]&i?1:0;c=t.vorbisInfo.blocksizes[r]}r=null!==c?c+a>>2:0}else if("opus"===t.codec){r=(e=>{const t=e[0]>>3,i=3&e[0];let r;return r=0===i?1:1===i||2===i?2:63&e[1],{durationInSamples:bt[t]*r}})(e).durationInSamples}return{durationInSamples:r,vorbisBlockSize:a}},Zr=27,ea=282,ta=e=>{const t=e.filePos;if(xo(e)!==Gr)return null;e.skip(1);const i=bo(e),r=Ro(e),a=xo(e),s=xo(e),n=xo(e),o=bo(e),c=new Uint8Array(o);for(let d=0;de+t,0);return{headerStartPos:t,totalSize:l+u,dataStartPos:t+l,dataSize:u,headerType:i,granulePosition:r,serialNumber:a,sequenceNumber:s,checksum:n,lacingValues:c}},ia=(e,t)=>{for(;e.filePos>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===Gr)return!0;e.skip(1)}}return!1};class ra extends ki{constructor(e){super(e),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=0;for(;;){let t=this.reader.requestSliceRange(e,Zr,ea);if(ce(t)&&(t=await t),!t)break;const i=ta(t);if(!i)break;if(!!!(2&i.headerType))break;this.bitstreams.push({serialNumber:i.serialNumber,bosPage:i,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=i.headerStartPos+i.totalSize}for(const t of this.bitstreams){const e=await this.readPacket(t.bosPage,0);e&&(e.data.byteLength>=7&&1===e.data[0]&&118===e.data[1]&&111===e.data[2]&&114===e.data[3]&&98===e.data[4]&&105===e.data[5]&&115===e.data[6]?await this.readVorbisMetadata(e,t):e.data.byteLength>=8&&79===e.data[0]&&112===e.data[1]&&117===e.data[2]&&115===e.data[3]&&72===e.data[4]&&101===e.data[5]&&97===e.data[6]&&100===e.data[7]&&await this.readOpusMetadata(e,t),null!==t.codecInfo.codec&&this.trackBackings.push(new aa(t,this)))}})())}async readVorbisMetadata(e,t){let i=await this.findNextPacketStart(e);if(!i)return;const r=await this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;if(i=await this.findNextPacketStart(r),!i)return;const a=await this.readPacket(i.startPage,i.startSegmentIndex);if(!a)return;if(3!==r.data[0]||5!==a.data[0])return;const s=[],n=e=>{for(;s.push(Math.min(255,e)),!(e<255);)e-=255};n(e.data.length),n(r.data.length);const o=new Uint8Array(1+s.length+e.data.length+r.data.length+a.data.length);o[0]=2,o.set(s,1),o.set(e.data,1+s.length),o.set(r.data,1+s.length+e.data.length),o.set(a.data,1+s.length+e.data.length+r.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=a;const c=f(e.data);t.numberOfChannels=c.getUint8(11),t.sampleRate=c.getUint32(12,!0);const l=c.getUint8(28);t.codecInfo.vorbisInfo={blocksizes:[1<<(15&l),1<<(l>>4)],modeBlockflags:wt(a.data).modeBlockflags},Pt(r.data.subarray(7),this.metadataTags)}async readOpusMetadata(e,t){const i=await this.findNextPacketStart(e);if(!i)return;const r=await this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=r;const a=(e=>{const t=f(e),i=t.getUint8(9),r=t.getUint16(10,!0),a=t.getUint32(12,!0),s=t.getInt16(16,!0),n=t.getUint8(18);let o=null;return n&&(o=e.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:a,outputGain:s,channelMappingFamily:n,channelMappingTable:o}})(e.data);t.numberOfChannels=a.outputChannelCount,t.sampleRate=ri,t.codecInfo.opusInfo={preSkip:a.preSkip},Pt(r.data.subarray(8),this.metadataTags)}async readPacket(e,t){n(te+t.length,0);if(0===c)return null;const l=new Uint8Array(c);let u=0;for(let n=0;n{let t="audio/ogg";e.codecStrings&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({codecStrings:(await Promise.all(this.trackBackings.map(e=>e.getDecoderConfig().then(e=>e?.codec??null)))).filter(Boolean)})}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}class aa{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new I,this.internalSampleRate="opus"===e.codecInfo.codec?ri:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return n(-1!==e),e+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}async getDecoderConfig(){return n(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:this.bitstream.description??void 0}}getName(){return null}getLanguageCode(){return q}getDisposition(){return{...xe,primary:!1}}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(n(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:a}=Jr(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new bi(i.metadataOnly?yi:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,r/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:r,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:a}),s}async getFirstPacket(e){n(this.bitstream.lastMetadataPacket);const t=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let i=0;"opus"===this.bitstream.codecInfo.codec&&(n(this.bitstream.codecInfo.opusInfo),i-=this.bitstream.codecInfo.opusInfo.preSkip);const r=await this.demuxer.readPacket(t.startPage,t.startSegmentIndex);return this.createEncodedPacketFromOggPacket(r,{timestampInSamples:i,vorbisLastBlocksize:null},e)}async getNextPacket(e,t){const i=this.encodedPacketToMetadata.get(e);if(!i)throw new Error("Packet was not created from this track.");const r=await this.demuxer.findNextPacketStart(i.packet);if(!r)return null;const a=i.timestampInSamples+i.durationInSamples,s=await this.demuxer.readPacket(r.startPage,r.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:a,vorbisLastBlocksize:i.vorbisBlockSize},t)}async getPacket(e,t){if(null===this.demuxer.reader.fileSize)return this.getPacketSequential(e,t);const i=W(e*this.internalSampleRate);if(0===i)return this.getFirstPacket(t);if(i<0)return null;n(this.bitstream.lastMetadataPacket);const r=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!r)return null;let a=r.startPage,s=this.demuxer.reader.fileSize;const o=[a];e:for(;a.headerStartPos+a.totalSizei?s=u.headerStartPos:(a=u,o.push(u));continue e}r=u.headerStartPos+u.totalSize}}let c=r.startPage;for(const n of o){if(n.granulePosition===a.granulePosition)break;(!c||n.headerStartPos>c.headerStartPos)&&(c=n)}let l=c;const u=[l];for(;l.serialNumber!==this.bitstream.serialNumber||l.granulePosition!==a.granulePosition;){const e=l.headerStartPos+l.totalSize;let t=this.demuxer.reader.requestSliceRange(e,Zr,ea);ce(t)&&(t=await t),n(t);const i=ta(t);n(i),l=i,l.serialNumber===this.bitstream.serialNumber&&u.push(l)}n(-1!==l.granulePosition);let d,h,f=null,m=l,p=0;if(l.headerStartPos===r.startPage.headerStartPos)d=this.granulePositionToTimestampInSamples(0),h=!0,f=0;else{d=0,h=!1;for(let t=l.lacingValues.length-1;t>=0;t--){if(l.lacingValues[t]<255){f=t+1;break}}if(null===f)throw new Error("Invalid page with granule position: no packets end on this page.");p=f-1;const e={data:yi,endPage:m,endSegmentIndex:p};if(await this.demuxer.findNextPacketStart(e)){const e=na(u,l,f);n(e);const t=sa(u,e.page,e.segmentIndex);t&&(l=t.page,f=t.segmentIndex)}else for(;;){const e=na(u,l,f);if(!e)break;const t=sa(u,e.page,e.segmentIndex);if(!t)break;if(l=t.page,f=t.segmentIndex,e.page.headerStartPos!==m.headerStartPos){m=e.page,p=e.segmentIndex;break}}}let g=null,k=null;for(;null!==l;){n(null!==f);const e=await this.demuxer.readPacket(l,f);if(!e)break;if(!(l.headerStartPos===r.startPage.headerStartPos&&fi||Math.max(a.timestampInSamples,0)===i))break}const a=await this.demuxer.findNextPacketStart(e);if(!a)break;l=a.startPage,f=a.startSegmentIndex}return g}async getPacketSequential(e,t){const i=await this.sequentialScanMutex.acquire();try{const i=W(e*this.internalSampleRate);e=i/this.internalSampleRate;const r=_(this.sequentialScanCache,i,e=>e.timestampInSamples);let a;if(-1!==r){const e=this.sequentialScanCache[r];a=this.createEncodedPacketFromOggPacket(e.packet,{timestampInSamples:e.timestampInSamples,vorbisLastBlocksize:e.vorbisLastBlockSize},t)}else a=await this.getFirstPacket(t);let s=0;for(;a&&a.timestampe)break;if(a=i,s++,100===s){s=0;const e=this.encodedPacketToMetadata.get(a);n(e),this.sequentialScanCache.length>0&&n(c(this.sequentialScanCache).timestampInSamples<=e.timestampInSamples),this.sequentialScanCache.push(e)}}return a}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const sa=(e,t,i)=>{let r=t,a=i;e:for(;;){for(a--;a>=0;a--){if(r.lacingValues[a]<255){a++;break e}}n(-1===a);if(!(1&r.headerType)){a=0;break}const t=D(e,e=>e.headerStartPos{if(i>0)return{page:t,segmentIndex:i-1};const r=D(e,e=>e.headerStartPos{let e=this.reader.requestSlice(0,12);ce(e)&&(e=await e),n(e);const t=Do(e,4),i="RIFX"!==t,r="RF64"===t,a=Po(e,i);let s=r?this.reader.fileSize:Math.min(a+8,this.reader.fileSize??1/0);if("WAVE"!==Do(e,4))throw new Error("Invalid WAVE file - wrong format");let o=0,c=null,l=e.filePos;for(;null===s||l=18&&357!==a){const e=wo(r,i),s=t-18;if(Math.min(s,e)>=22&&a===oa.EXTENSIBLE){r.skip(6);const e=yo(r,16);a=e[0]|e[1]<<8}}if(a!==oa.MULAW&&a!==oa.ALAW||(c=8),a!==oa.PCM&&a!==oa.IEEE_FLOAT&&a!==oa.ALAW&&a!==oa.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${a}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(a===oa.PCM&&![8,16,24,32].includes(c))throw new Error(`Unsupported WAVE PCM bit depth (${c}). Only 8, 16, 24, and 32 bits are supported.`);if(a===oa.IEEE_FLOAT&&![32,64].includes(c))throw new Error(`Unsupported WAVE float bit depth (${c}). Only 32 and 64 bits are supported.`);this.audioInfo={format:a,numberOfChannels:s,sampleRate:n,sampleSizeInBytes:Math.ceil(c/8),blockSizeInBytes:o}}async parseListChunk(e,t,i){var r,a,s,n,o,c,l,u,d,h,f;let m=this.reader.requestSlice(e,t);if(ce(m)&&(m=await m),!m)return;const p=Do(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=Do(m,4),t=Po(m,i),p=yo(m,t);let k=0;for(let i=0;i0&&((c=this.metadataTags).trackNumber??(c.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&((l=this.metadataTags).tracksTotal??(l.tracksTotal=i))}break;case"ICRD":case"IDIT":{const e=new Date(y);Number.isNaN(e.getTime())||((u=this.metadataTags).date??(u.date=e))}break;case"YEAR":{const e=Number.parseInt(y,10);Number.isInteger(e)&&e>0&&((d=this.metadataTags).date??(d.date=new Date(e,0,1)))}break;case"IGNR":case"GENR":(h=this.metadataTags).genre??(h.genre=y);break;case"ICMT":case"CMNT":case"COMM":(f=this.metadataTags).comment??(f.comment=y)}g+=8+t+(1&t)}}async parseId3Chunk(e,t){let i=this.reader.requestSlice(e,t);if(ce(i)&&(i=await i),!i)return;const r=jo(i);if(r){const a=t-qo;if(r.size=Math.min(r.size,a),r.size>0){const t=i.slice(e+qo,r.size);Ko(t,r,this.metadataTags)}}}getCodec(){if(n(this.audioInfo),this.audioInfo.format===oa.MULAW)return"ulaw";if(this.audioInfo.format===oa.ALAW)return"alaw";if(this.audioInfo.format===oa.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}if(this.audioInfo.format===oa.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}n(!1)}async getMimeType(){return"audio/wav"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}}const ua=2048;class da{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return n(this.demuxer.audioInfo),this.demuxer.audioInfo.format}async getDecoderConfig(){const e=this.demuxer.getCodec();return e?(n(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null}getNumberOfChannels(){return n(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return n(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return n(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return n(-1!==this.demuxer.dataSize),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return q}getDisposition(){return{...xe}}async getPacketAtIndex(e,t){n(e>=0),n(this.demuxer.audioInfo);const i=e*ua*this.demuxer.audioInfo.blockSizeInBytes;if(i>=this.demuxer.dataSize)return null;const r=Math.min(ua*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-i);if(null===this.demuxer.reader.fileSize){let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);if(ce(e)&&(e=await e),!e)return null}let a;if(t.metadataOnly)a=yi;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);ce(e)&&(e=await e),n(e),a=yo(e,r)}const s=e*ua/this.demuxer.audioInfo.sampleRate,o=r/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(e,this.demuxer.lastKnownPacketIndex),new bi(a,"key",s,o,e,r)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getPacket(e,t){n(this.demuxer.audioInfo);const i=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/ua,(this.demuxer.dataSize-1)/(ua*this.demuxer.audioInfo.blockSizeInBytes)));if(i<0)return null;const r=await this.getPacketAtIndex(i,t);if(r)return r;if(0===i)return null;n(null===this.demuxer.reader.fileSize);let a=await this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,t);for(;a;){const e=await this.getNextPacket(a,t);if(!e)break;a=e}return a}getNextPacket(e,t){n(this.demuxer.audioInfo);const i=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/ua);return this.getPacketAtIndex(i+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const ha=e=>{const t=e.filePos,i=yo(e,9),r=new Ce(i);if(4095!==r.readBits(12))return null;r.skipBits(1);if(0!==r.readBits(2))return null;const a=r.readBits(1),s=r.readBits(2)+1,n=r.readBits(4);if(15===n)return null;r.skipBits(1);const o=r.readBits(3);if(0===o)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const c=r.readBits(13);r.skipBits(11);const l=r.readBits(2)+1;if(1!==l)throw new Error("ADTS frames with more than one AAC frame are not supported.");let u=null;return 1===a?e.filePos-=2:u=r.readBits(16),{objectType:s,samplingFrequencyIndex:n,channelConfiguration:o,frameLength:c,numberOfAacFrames:l,crcCheck:u,startPos:t}},fa=1024;class ma extends ki{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new I,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();n(this.firstFrameHeader),this.trackBackings=[new pa(this)]})())}async advanceReader(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,qo);if(ce(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=jo(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(ce(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const t=ha(e);if(!t)return void(this.lastSampleLoaded=!0);if(null!==this.reader.fileSize&&t.startPos+t.frameLength>this.reader.fileSize)return void(this.lastSampleLoaded=!0);this.firstFrameHeader||(this.firstFrameHeader=t);const i=Be[t.samplingFrequencyIndex];n(void 0!==i);const r=fa/i,a={timestamp:this.nextTimestampInSamples/i,duration:r,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(a),this.nextTimestampInSamples+=fa,this.lastLoadedPos=t.startPos+t.frameLength}async getMimeType(){return"audio/aac"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){const e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0;for(;;){let t=this.reader.requestSlice(e,qo);if(ce(t)&&(t=await t),!t)break;const i=jo(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(ce(r)&&(r=await r),!r)break;Ko(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}}}class pa{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/fa}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return q}getCodec(){return"aac"}getInternalCodecId(){return n(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){n(this.demuxer.firstFrameHeader);const e=Ee[this.demuxer.firstFrameHeader.channelConfiguration];return n(void 0!==e),e}getSampleRate(){n(this.demuxer.firstFrameHeader);const e=Be[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return n(void 0!==e),e}getDisposition(){return{...xe}}async getDecoderConfig(){return n(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}}async getPacketAtIndex(e,t){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=yi;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(ce(e)&&(e=await e),!e)return null;r=yo(e,i.dataSize)}return new bi(r,"key",i.timestamp,i.duration,e,i.dataSize)}getFirstPacket(e){return this.getPacketAtIndex(0,e)}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=E(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}}async getPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=_(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1{var e;let t=0;for(;;){let e=this.reader.requestSlice(t,qo);if(ce(e)&&(e=await e),!e)return void(this.lastSampleLoaded=!0);const i=jo(e);if(!i)break;let r=this.reader.requestSlice(e.filePos,i.size);ce(r)&&(r=await r),n(r),Ko(r,i,this.metadataTags),t=e.filePos+i.size}for(t+=4;null===this.reader.fileSize||ts.end-6)return{num:o.num,blockSize:o.blockSize,sampleRate:o.sampleRate,size:s.end-e,isLastFrame:!0};if(255===bo(s)){const t=s.filePos;if(bo(s)!==(1===this.blockingBit?249:248)){s.filePos=t;continue}s.skip(-2);const i=s.filePos-e,r=this.readFlacFrameHeader({slice:s,isFirstPacket:!1});if(!r){s.filePos=t;continue}if(0===this.blockingBit){if(r.num-o.num!==1){s.filePos=t;continue}}else if(r.num-o.num!==o.blockSize){s.filePos=t;continue}return{num:o.num,blockSize:o.blockSize,sampleRate:o.sampleRate,size:i,isLastFrame:!1}}}}readFlacFrameHeader({slice:e,isFirstPacket:t}){const i=e.filePos,r=yo(e,4),a=new Ce(r);if(32764!==a.readBits(15))return null;if(null===this.blockingBit){n(t);const e=a.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){n(!t);if(1!==a.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");n(!t);if(0!==a.readBits(1))return null}const s=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*2**e:6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?2**e:null)(a.readBits(4));if(!s)return null;n(this.audioInfo);const o=((e,t)=>{switch(e){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}})(a.readBits(4),this.audioInfo.sampleRate);if(!o)return null;a.readBits(4),a.readBits(3);if(0!==a.readBits(1))return null;const c=(e=>{let t=0;const i=new Ce(yo(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],a=t-1,s=new Ce(yo(e,a)),n=8-t-1;for(let o=0;oe|t<"uncommon-u16"===t?To(e)+1:"uncommon-u8"===t?bo(e)+1:"number"===typeof t?t:(N(t),void n(!1)))(e,s),u=((e,t)=>"uncommon-u16"===t?To(e):"uncommon-u16-10"===t?10*To(e):"uncommon-u8"===t?bo(e):"number"===typeof t?t:null)(e,o);if(null===u)return null;if(u!==this.audioInfo.sampleRate)return null;const d=e.filePos-i,h=bo(e);e.skip(-d),e.skip(-1);const f=(e=>{let t=0;for(const i of e){t^=i;for(let e=0;e<8;e++)0!==(128&t)?t=t<<1^7:t<<=1,t&=255}return t})(yo(e,d));return h!==f?null:{num:c,blockSize:l,sampleRate:u}}async advanceReader(){await this.readMetadata(),n(null!==this.lastLoadedPos),n(this.audioInfo);const e=this.lastLoadedPos,t=await this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length});if(!t)return void(this.lastSampleLoaded=!0);const i=this.loadedSamples[this.loadedSamples.length-1],r={blockOffset:i?i.blockOffset+i.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size};this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(r),t.isLastFrame&&(this.lastSampleLoaded=!0)}}class ka{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return n(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return n(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return q}getTimeResolution(){return n(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return n(this.demuxer.audioInfo),0===this.demuxer.audioInfo.totalSamples?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getDisposition(){return{...xe}}async getDecoderConfig(){return n(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}}async getPacket(e,t){if(n(this.demuxer.audioInfo),e<0)return null;const i=await this.demuxer.readingMutex.acquire();try{for(;;){const i=_(this.demuxer.loadedSamples,e,e=>e.blockOffset/this.demuxer.audioInfo.sampleRate);if(-1===i){await this.demuxer.advanceReader();continue}const r=this.demuxer.loadedSamples[i],a=r.blockOffset/this.demuxer.audioInfo.sampleRate;if(!(a+r.blockSize/this.demuxer.audioInfo.sampleRate<=e))return this.getPacketAtIndex(i,t);if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t);await this.demuxer.advanceReader()}}finally{i()}}async getNextPacket(e,t){const i=await this.demuxer.readingMutex.acquire();try{const i=e.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&i>=this.demuxer.loadedSamples.length)return null;for(;i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(i,t)}finally{i()}}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}async getPacketAtIndex(e,t){const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=yi;else{let e=this.demuxer.reader.requestSlice(i.byteOffset,i.byteSize);if(ce(e)&&(e=await e),!e)return null;r=yo(e,i.byteSize)}n(this.demuxer.audioInfo);const a=i.blockOffset/this.demuxer.audioInfo.sampleRate,s=i.blockSize/this.demuxer.audioInfo.sampleRate;return new bi(r,"key",a,s,e,i.byteSize)}async getFirstPacket(e){for(;0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(0,e)}}const ya=9e4,ba=2**33,wa=188,Ta="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",Sa=new Set([133,134,162]),va=new Set;class Pa extends ki{constructor(e){super(e),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5242880,this.minReferencePointByteDistance=-1,this.timestampWrapInfo=null,this.reader=e._reader}async readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{let e=this.reader.requestSlice(0,205);ce(e)&&(e=await e),n(e);const t=yo(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=wa;else if(71===t[0]&&71===t[204])this.packetOffset=0,this.packetStride=204;else{if(71!==t[4]||71!==t[196])throw new Error("Unreachable.");this.packetOffset=4,this.packetStride=192}this.minReferencePointByteDistance=256*this.packetStride;let i=this.packetOffset,r=null,a=!1,s=!1;for(;;){const e=await this.readPacketHeader(i);if(!e)break;if(0===e.payloadUnitStartIndicator){i+=this.packetStride;continue}if(s&&!this.elementaryStreams.some(t=>t.pid===e.pid)){i+=this.packetStride;continue}const t=await this.readSection(i,!0,!s);if(!t)break;const o=3,c=32;let l=!1;if(!s&&0!==t.pid){if(!(0===t.payload[0]&&0===t.payload[1]&&1===t.payload[2])){const e=new Ce(t.payload),i=e.readAlignedByte();e.skipBits(8*i);l=2===e.readBits(8)}}if(0!==t.pid||a)if(t.pid!==r&&!l||s){const e=this.elementaryStreams.find(e=>e.pid===t.pid);e:if(e&&!e.initialized){const i=xa(this,t,!0);if(!i)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${e.pid}`);if(e.firstSection=t,e.canBeTrustedWithKeyPackets=1===t.randomAccessIndicator,this.input._initInput){const i=(await this.input._initInput._getDemuxer()).elementaryStreams.find(i=>i.pid===t.pid&&i.info.codec===e.info.codec);if(i){e.info=i.info,e.initialized=!0;break e}}const r=new Ra(e,i);if("video"===e.info.type){for(;;){if(r.suppliedPacket=null,await r.markNextPacket(),"avc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(e.info.avcCodecInfo=Xe(r.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];n(t);const i=Ye(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight;const a=i.pixelAspectRatio.num,s=i.pixelAspectRatio.den;a>0&&s>0&&(a>s?(e.info.squarePixelWidth=Math.round(e.info.width*a/s),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*s/a))),e.info.colorSpace={primaries:k[i.colourPrimaries],transfer:b[i.transferCharacteristics],matrix:T[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}if("hevc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(e.info.hevcCodecInfo=rt(r.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===Oe.SPS_NUT).nalUnits[0];n(t);const i=it(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight,i.pixelAspectRatio.num>i.pixelAspectRatio.den?(e.info.squarePixelWidth=Math.round(e.info.width*i.pixelAspectRatio.num/i.pixelAspectRatio.den),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*i.pixelAspectRatio.den/i.pixelAspectRatio.num)),e.info.colorSpace={primaries:k[i.colourPrimaries],transfer:b[i.transferCharacteristics],matrix:T[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:ei({width:e.info.width,height:e.info.height,codec:e.info.codec,codecDescription:null,colorSpace:e.info.colorSpace,avcType:1,avcCodecInfo:e.info.avcCodecInfo,hevcCodecInfo:e.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:e.info.width,codedHeight:e.info.height,colorSpace:e.info.colorSpace},e.info.width===e.info.squarePixelWidth&&e.info.height===e.info.squarePixelHeight||(e.info.decoderConfig.displayAspectWidth=e.info.squarePixelWidth,e.info.decoderConfig.displayAspectHeight=e.info.squarePixelHeight),e.initialized=!0}else{if(await r.markNextPacket(),!r.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${e.pid}`);if("aac"===e.info.codec){const t=go.tempFromBytes(r.suppliedPacket.data),i=ha(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=Ee[i.channelConfiguration],e.info.sampleRate=Be[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=Io(go.tempFromBytes(r.suppliedPacket.data)),i=hi(t,r.suppliedPacket.data.byteLength);if(!i.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");e.info.numberOfChannels=gi(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=xt(r.suppliedPacket.data);if(!t)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(3===t.fscod)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=It[t.acmod]+t.lfeon,e.info.sampleRate=Ae[t.fscod]}else if("eac3"===e.info.codec){const t=Et(r.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=_t(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Rt(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=Ut(r.suppliedPacket.data);if(!t)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");e.info.numberOfChannels=t.numberOfChannels,e.info.sampleRate=t.sampleRate,t.core&&(e.info.dtsFormat=t.hasExtensions?"dtsh":"dtsc")}}e.info.decoderConfig={codec:ii({codec:e.info.codec,codecDescription:null,aacCodecInfo:e.info.aacCodecInfo,dtsFormat:e.info.dtsFormat}),numberOfChannels:e.info.numberOfChannels,sampleRate:e.info.sampleRate},e.initialized=!0}}}else{const e=new Ce(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(12);const r=e.readBits(12);e.skipBits(43),e.readBits(13),e.skipBits(6);const a=e.readBits(10),n=e.pos+8*a;let l=!1;for(;e.pos=4){const t=e.readBits(32);l||(l=1212435798===t||1212436562===t)}e.pos=r}for(e.pos=n;8*(r+o)-e.pos>c;){const t=e.readBits(8);e.skipBits(3);const i=e.readBits(13);e.skipBits(6);const r=e.readBits(10),a=e.pos+8*r;let s=!1,n=!1,o=!1;for(;e.pos=4){const t=e.readBits(32);o||(o=1146376960===(4294967040&t))}e.pos=r}let c=null;const u=l&&Sa.has(t)?130:t;switch(u){case 27:case 36:c={type:"video",codec:27===t?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let e;e=3===u||4===u?"mp3":15===u?"aac":129===u?"ac3":135===u?"eac3":"dts",c={type:"audio",codec:e,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:n?c={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:s?c={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:o&&(c={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:va.has(t)||(ve._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),va.add(t))}c&&this.elementaryStreams.push({demuxer:this,pid:i,streamType:t,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:c,referencePesPackets:[]})}s=!0}else{const e=new Ce(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(14);const s=e.readBits(10);for(e.skipBits(40);8*(s+o)-e.pos>c;){const t=e.readBits(16);e.skipBits(3);const i=e.readBits(13);if(0!==t){if(null!==r)throw new Error("Only files with a single program are supported.");r=i}}if(null===r)throw new Error("Program Association Table must link to a Program Map Table.");a=!0}if(s&&this.elementaryStreams.every(e=>e.initialized))break;i+=this.packetStride}if(!s){if(!a)throw new Error("No Program Association Table found in the file.");throw new Error("No Program Map Table found in the file.")}for(const n of this.elementaryStreams)n.initialized&&("video"===n.info.type?this.trackBackingEntries.push(new Ba(n)):this.trackBackingEntries.push(new Ea(n)))})())}async getTrackBackings(){return await this.readMetadata(),this.trackBackingEntries}async getMetadataTags(){return{}}async getMimeType(){await this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${i.join(", ")}"`),t})(await Promise.all(this.trackBackingEntries.map(e=>e.getDecoderConfig().then(e=>e?.codec??null))))}async readSection(e,t,i=!1){let r=e,a=e;const s=[];let n,o=0,c=null,l=!0,u=0;for(;;){const e=await this.readPacket(a);if(a+=this.packetStride,!e)break;if(c){if(e.pid!==c.pid){if(i)break;continue}if(1===e.payloadUnitStartIndicator)break}else{if(0===e.payloadUnitStartIndicator)break;c=e}const n=!!(2&e.adaptationFieldControl),d=!!(1&e.adaptationFieldControl);let h=0;if(n&&(h=1+e.body[0],e===c&&h>1&&(u=e.body[1]>>6&1)),d&&(0===h?(s.push(e.body),o+=e.body.byteLength):(s.push(e.body.subarray(h)),o+=e.body.byteLength-h)),r=a,!t&&o>=64){l=!1;break}if(-1!==E(this.sectionEndPositions,r,e=>e)){l=!1;break}}if(l){const e=_(this.sectionEndPositions,r,e=>e);this.sectionEndPositions.splice(e+1,0,r)}if(!c)return null;if(1===s.length)n=s[0];else{const e=s.reduce((e,t)=>e+t.length,0);n=new Uint8Array(e);let t=0;for(const i of s)n.set(i,t),t+=i.length}return{startPos:e,endPos:t?r:null,pid:c.pid,payload:n,randomAccessIndicator:u}}async readPacketHeader(e){let t=this.reader.requestSlice(e,4);if(ce(t)&&(t=await t),!t)return null;if(71!==bo(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=To(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:bo(t)>>4&3}}async readPacket(e){let t=this.reader.requestSlice(e,wa);if(ce(t)&&(t=await t),!t)return null;const i=yo(t,wa);if(71!==i[0])throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const r=(i[1]<<8)+i[2];return{payloadUnitStartIndicator:r>>14&1,pid:8191&r,adaptationFieldControl:i[3]>>4&3,body:i.subarray(4)}}normalizeTimestamp(e){if(!this.timestampWrapInfo){const t=54e5;this.timestampWrapInfo={reference:e-t,offset:e>=ba-t?-8589934592:ba}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e{if(t.payload.byteLength<3)return null;const r=new Ce(t.payload);if(1!==r.readBits(24))return null;const a=r.readBits(8);if(r.skipBits(16),188===a||190===a||191===a||240===a||241===a||255===a||242===a||248===a)return null;r.skipBits(8);const s=r.readBits(2);r.skipBits(14);let n=null;if(2===s||3===s)n=0,r.skipBits(4),n+=r.readBits(3)*(1<<30),r.skipBits(1),n+=32768*r.readBits(15),r.skipBits(1),n+=r.readBits(15),n=e.normalizeTimestamp(n);else if(i)throw new Error(Ta);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:n,randomAccessIndicator:t.randomAccessIndicator}},xa=(e,t,i)=>{n(null!==t.endPos);const r=Ia(e,t,i);if(!r)return null;const a=new Ce(t.payload);a.skipBits(32);const s=a.readBits(16);a.skipBits(16);const o=a.readBits(8),c=a.pos+8*o;a.pos=c;const l=c/8;n(Number.isInteger(l));const u=t.payload.subarray(l,s>0?6+s:t.payload.byteLength);return{...r,data:u}};class Ca{constructor(e){this.elementaryStream=e,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const e=this.elementaryStream.demuxer,t=this.elementaryStream.info.type;let i=0;for(const r of e.trackBackingEntries)if(r.getType()===t&&i++,n(r instanceof Ca),r.elementaryStream===this.elementaryStream)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return q}getDisposition(){return{...xe,primary:!1}}getTimeResolution(){return ya}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}createEncodedPacket(e,t,i){let r;return r=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new bi(i.metadataOnly?yi:e.data,r,e.pts/ya,Math.max(t/ya,0),e.sequenceNumber,e.data.byteLength)}async getFirstPacket(e){const t=this.elementaryStream.firstSection;n(t);const i=xa(this.elementaryStream.demuxer,t,!0);n(i);const r=new Ra(this.elementaryStream,i),a=new Fa(this,r),s=await a.readNext();if(!s)return null;const o=this.createEncodedPacket(s.packet,s.duration,e);return this.packetBuffers.set(o,a),this.packetSectionStarts.set(o,s.packet.sectionStartPos),o}async getNextPacket(e,t){let i=this.packetBuffers.get(e);if(i){const r=await i.readNext();if(!r)return null;this.packetBuffers.delete(e);const a=this.createEncodedPacket(r.packet,r.duration,t);return this.packetBuffers.set(a,i),this.packetSectionStarts.set(a,r.packet.sectionStartPos),a}const r=this.packetSectionStarts.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");const a=this.elementaryStream.demuxer,s=await a.readSection(r,!0);n(s);const o=xa(a,s,!0);n(o);const c=new Ra(this.elementaryStream,o);i=new Fa(this,c);const l=e.sequenceNumber;for(;;){const e=await i.readNext();if(!e)return null;if(e.packet.sequenceNumber>l){const r=this.createEncodedPacket(e.packet,e.duration,t);return this.packetBuffers.set(r,i),this.packetSectionStarts.set(r,e.packet.sectionStartPos),r}}}async getNextKeyPacket(e,t){let i=e;for(;;){if(i=await this.getNextPacket(i,t),!i)return null;if("key"===i.type)return i}}getPacket(e,t){return this.doPacketLookup(e,!1,t)}getKeyPacket(e,t){return this.doPacketLookup(e,!0,t)}async doPacketLookup(e,t,i){const r=W(e*ya),a=this.elementaryStream.demuxer,{reader:s,seekChunkSize:o}=a,l=this.elementaryStream.pid,u=async(e,t,i)=>{let r=e;for(;re.pts),g=-1!==p?m[p]:null;if(g&&r-g.pts<45e3)f=g.sectionStartPos;else{let e=0;if(null!==s.fileSize){const t=Math.ceil(s.fileSize/o);if(t>1){let i=0,s=t-1;for(e=i;i<=s;){const t=Math.floor((i+s)/2),n=j(t*o,a.packetStride)+h.sectionStartPos,c=n+o,l=await u(n,c,!1);l?l.pesPacketHeader.pts<=r?(e=t,i=t+1):s=t-1:s=t-1}}}f=j(e*o,a.packetStride)+h.sectionStartPos}const k=await u(f,s.fileSize??1/0,!1);let y=k?.pesPacketHeader??null;y||(y=h);const b=this.getReorderSize(),w=async(e,t)=>{const s=await a.readSection(e,!0);n(s);const o=xa(a,s,!0);n(o);const l=new Ra(this.elementaryStream,o),u=new Fa(this,l);for(;;){if((c(u.presentationOrderPackets)?.pts??-1/0)>=r)break;if(!(await u.readNextPacket()))break}const d=M(u.presentationOrderPackets,t);if(-1===d)return null;const h=u.presentationOrderPackets[d],f=0===d?0:h.pts-u.presentationOrderPackets[d-1].pts;for(;u.decodeOrderPackets[0]!==h;)u.decodeOrderPackets.shift();u.lastDuration=f;const m=await u.readNext();n(m);const p=this.createEncodedPacket(m.packet,m.duration,i);return this.packetBuffers.set(p,u),this.packetSectionStarts.set(p,m.packet.sectionStartPos),p};if(!t||this.allPacketsAreKeyPackets()){e:for(;;){let e=y.sectionStartPos+a.packetStride;for(;;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===l&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,!1);if(t){const e=Ia(a,t,!1);if(e&&null!==e.pts){if(e.pts>r)break e;y=e,_a(this.elementaryStream,y);break}}}e+=a.packetStride}}e:for(let e=0;e=a.packetOffset;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===l&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,!1);if(t){const e=Ia(a,t,!1);if(e&&null!==e.pts){y=e;break}}}e-=a.packetStride}}return w(y.sectionStartPos,e=>e.pts<=r)}{let e=f,t=null;const i=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let c=null;const f=e<=h.sectionStartPos;let m,p=null;if(f)m=h,p=d;else{const t=await u(e,s.fileSize??1/0,i);m=t?.pesPacketHeader??null,p=t?.section??null}let g=!1,k=0;e:for(;m&&!(null!==t&&m.sectionStartPos>=t);){if(m.pts<=r){let e;if(this.elementaryStream.canBeTrustedWithKeyPackets)e=1===m.randomAccessIndicator;else{n(p);const t=xa(a,p,!0);n(t);const i=new Ra(this.elementaryStream,t);await i.markNextPacket(),e=1===i.suppliedPacket?.randomAccessIndicator}e&&(c=m)}if(m.pts>r&&(g=!0),g&&(k++,k>b))break;let e=m.sectionStartPos+a.packetStride;for(;;){const t=await a.readPacketHeader(e);if(!t)break e;if(t.pid===l&&1===t.payloadUnitStartIndicator){const t=await a.readSection(e,i);if(t){const e=Ia(a,t,!1);if(e&&null!==e.pts){m=e,p=t,_a(this.elementaryStream,m);break}}}e+=a.packetStride}}if(c){let e=c;if(0===k)e:for(let r=0;r=a.packetOffset;){const r=await a.readPacketHeader(t);if(!r)break e;if(r.pid===l&&1===r.payloadUnitStartIndicator){const r=await a.readSection(t,i);if(r){const t=Ia(a,r,!1);if(t&&null!==t.pts){e=t;break}}}t-=a.packetStride}}const t=await w(e.sectionStartPos,e=>e.pts<=r&&1===e.randomAccessIndicator);return n(t),t}if(f)return null;t=e,e=Math.max(j(e-h.sectionStartPos-o,a.packetStride)+h.sectionStartPos,h.sectionStartPos)}}}}class Ba extends Ca{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}async getColorSpace(){return this.elementaryStream.info.colorSpace}async canBeTransparent(){return!1}async getDecoderConfig(){return n(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class Ea extends Ca{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}async getDecoderConfig(){return n(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const _a=(e,t)=>{const i=e.referencePesPackets,r=_(i,t.sectionStartPos,e=>e.sectionStartPos);if(r>=0){const a=i[r];if(t.pts<=a.pts)return!1;const s=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-a.sectionStartPos=e?e:this.bufferData(e-t).then(()=>Math.min(this.endPos-this.currentPos,e))}getCurrentPesPacket(){const e=this.pesPackets[this.currentPesPacketIndex];return n(e),e}async bufferData(e){const t=this.endPos+e;for(;this.endPos=u)break;d=e;const i=o+d;if(d+3>=u){this.seekTo(i);break}const h=c[d+1],f=c[d+2],m=c[d+3];let p=0;if(0===h&&0===f&&1===m?p=4:0===h&&1===f&&(p=3),0===p){d++;continue}const g=i;a??(a=g);const k=d+p,y=k+r,b=6;if(y+("avc"===t?b:1)>u){this.seekTo(i);break}const w=c[k];let T,S,v;if("avc"===t)T=We(w),S=T===Me.NON_IDR_SLICE||T===Me.SLICE_DPA||T===Me.IDR,v=T===Me.SEI||T===Me.SPS||T===Me.PPS||T===Me.AUD;else{T=tt(w);if(((1&w)<<5|c[k+1]>>3)>0){d+=p;continue}S=T<=Oe.RASL_R||T>=Oe.BLA_W_LP&&T<=21,v=T>=Oe.VPS_NUT&&T<=37||T===Oe.PREFIX_SEI_NUT||T>=41&&T<=44||T>=48&&T<=55}let P=!1;if(S){let e;if("avc"===t){const t=c.subarray(y,y+b),i=l(new Ce(t));e=!s||i<=n,n=i}else e=c[y]>>7===1;e&&(s?P=!0:s=!0)}else v&&s&&(P=!0);if(P){const e=g-a;return this.seekTo(a),this.supplyPacket(e,0)}d+=p}if(ea){const e=this.endPos-a;return this.seekTo(a),this.supplyPacket(e,0)}}else{const t=e.info.codec,i=128;for(;;){let r=this.ensureBuffered(i);ce(r)&&(r=await r);const a=this.currentPos;for(;this.currentPos-a>6,o=63&a[4];if(3===s||o>37){this.seekTo(t+1);continue}const c=Ct[3*o+s];n(void 0!==c),this.seekTo(t),r=this.ensureBuffered(c),ce(r)&&(r=await r);const l=Math.round(13824e4/e.info.sampleRate);return this.supplyPacket(r,l)}if("eac3"===t){if(11!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(5);if(ce(r)&&(r=await r),r<5)return;const a=this.readBytes(5);if(11!==a[0]||119!==a[1]){this.seekTo(t+1);continue}const s=2*(((7&a[2])<<8|a[3])+1),n=3===a[4]>>6?3:a[4]>>4&3,o=Bt[n];this.seekTo(t),r=this.ensureBuffered(s),ce(r)&&(r=await r);const c=256*o,l=Math.round(c*ya/e.info.sampleRate);return this.supplyPacket(r,l)}if("dts"===t){if(127!==i&&100!==i)continue;this.skip(-1);const t=this.currentPos;let r=this.ensureBuffered(18);if(ce(r)&&(r=await r),r<18)return;const a=this.readBytes(18),s=Wt(a);let n=s?null:Ht(a);if(!s&&!n){this.seekTo(t+1);continue}if(n&&!n.asset){this.seekTo(t);const e=Math.min(n.frameSize,4096);let i=this.ensureBuffered(e);ce(i)&&(i=await i),n=Ht(this.readBytes(i))??n}let o=s?s.frameSize:n.frameSize;if(s){let e=4*Math.ceil(s.frameSize/4);for(;;){this.seekTo(t);const i=e+10;let r=this.ensureBuffered(i);if(ce(r)&&(r=await r),r=0)}async readNext(){if(0===this.decodeOrderPackets.length){if(!(await this.readNextPacket()))return null}await this.ensureCurrentPacketHasNext();const e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e);let i;if(n(-1!==t),t===this.presentationOrderPackets.length-1)i=this.lastDuration;else{i=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=i}for(this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const e=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(e))break;this.presentationOrderPackets.shift()}return{packet:e,duration:i}}async readNextPacket(){if(this.reachedEnd)return!1;let e;return this.context.suppliedPacket||await this.context.markNextPacket(),e=this.context.suppliedPacket,this.context.suppliedPacket=null,e?(this.decodeOrderPackets.push(e),this.processPacketThroughReorderBuffer(e),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)}async ensureCurrentPacketHasNext(){const e=this.decodeOrderPackets[0];for(n(e);;){const t=this.presentationOrderPackets.indexOf(e);if(-1!==t&&t<=this.presentationOrderPackets.length-2)break;if(!(await this.readNextPacket()))break}}processPacketThroughReorderBuffer(e){if(this.reorderBuffer.push(e),this.reorderBuffer.length>this.reorderSize){let e=0;for(let i=1;ie.pts-t.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const Aa="application/vnd.apple.mpegurl",Da="#EXT-X-STREAM-INF:",Ma="#EXT-X-I-FRAME-STREAM-INF:",Na="#EXT-X-MEDIA:",Oa="#EXTINF:",La="#EXT-X-MAP:",za="#EXT-X-KEY:",Ua="#EXT-X-MEDIA-SEQUENCE:",qa="#EXT-X-BYTERANGE:",Wa="#EXT-X-PROGRAM-DATE-TIME:",Ha="#EXT-X-TARGETDURATION:",Va="#EXT-X-PLAYLIST-TYPE:",ja=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class Ka{constructor(e){this._attributes={};let t="",i="",r=!1,a=!1;for(let s=0;s{const e=[];if(this.trackDeclarations){for(const t of this.trackDeclarations)if("video"===t.type){const i=pe(e,e=>"video"===e.getType())+1;e.push(new Ga(this,t,i))}else if("audio"===t.type){const i=pe(e,e=>"audio"===e.getType())+1;e.push(new Qa(this,t,i))}}else{if(this.firstSegment=await this.getFirstSegment({}),!this.firstSegment)return[];const t=this.getInputForSegment(this.firstSegment),i=await t.getTracks();for(const r of i)if("video"===r.type){const t=pe(e,e=>"video"===e.getType())+1;e.push(new Ga(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=pe(e,e=>"audio"===e.getType())+1;e.push(new Qa(this,{id:e.length+1,type:"audio"},t))}}return e})())}async getFirstTimestampForInput(e){const t=this.firstTimestampCache.get(e);if(void 0!==t)return t;const i=await e.getFirstTimestamp();return this.firstTimestampCache.set(e,i),i}async getMediaOffset(e,t){const i=e.firstSegment??e;let r;if(this.firstSegmentFirstTimestamps.has(i))r=this.firstSegmentFirstTimestamps.get(i);else{const e=this.getInputForSegment(i);r=await this.getFirstTimestampForInput(e),this.firstSegmentFirstTimestamps.set(i,r)}if(i===e)return i.timestamp-r;const a=await this.getFirstTimestampForInput(t),s=e.timestamp-i.timestamp,n=a-r-s;return Math.abs(n)<=Math.min(.25,s)?i.timestamp-r:e.timestamp-a}dispose(){for(const e of this.inputCache)e.input.dispose();this.inputCache.length=0}}class $a{constructor(e,t,i){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.firstSegment=null,this.segmentedInput=e,this.decl=t,this.number=i}hydrate(){return this.hydrationPromise??(this.hydrationPromise=(async()=>{var e;if((e=this.segmentedInput).firstSegment??(e.firstSegment=await this.segmentedInput.getFirstSegment({})),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let t=this.segmentedInput.firstSegment,i=null;for(;t;){const e=this.segmentedInput.getInputForSegment(t);if(i=(await e.getTracks()).find(e=>e.type===this.decl.type&&e.number===this.number)??null,i)break;t=await this.segmentedInput.getNextSegment(t,{})}if(!i)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=i,this.firstSegment=t})())}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(e){return this.firstInputTrack?e():this.hydrate().then(e)}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}getHasOnlyKeyPackets(){return this.delegate(()=>this.firstInputTrack._backing.getHasOnlyKeyPackets?.()??null)}getPairingMask(){return 1n}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}async isRelativeToUnixEpoch(){return await this.hydrate(),n(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp}getUnixTimeForTimestamp(e){return this.segmentedInput.getUnixTimeForTimestamp(e)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(e){return this.segmentedInput.getDurationFromMetadata(e)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}async createAdjustedPacket(e,t,i){n(e.sequenceNumber>=0),n(this.segmentedInput.firstSegment);const r=await this.segmentedInput.getMediaOffset(t,i.input),a=t.timestamp-this.segmentedInput.firstSegment.timestamp,s=e.clone({timestamp:V(e.timestamp+r,await i.getTimeResolution()),sequenceNumber:Math.floor(1e8*a)+e.sequenceNumber});return this.packetInfos.set(s,{segment:t,track:i,sourcePacket:e}),s}async getFirstPacket(e){await this.hydrate(),n(this.firstInputTrack),n(this.firstSegment);let t=this.firstInputTrack,i=this.firstSegment;for(;;){if(t){const r=await t._backing.getFirstPacket(e);if(r)return this.createAdjustedPacket(r,i,t)}if(i=await this.segmentedInput.getNextSegment(i,{skipLiveWait:e.skipLiveWait}),!i)break;const r=this.segmentedInput.getInputForSegment(i);t=(await r.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number)??null}return null}getNextPacket(e,t){return this._getNextInternal(e,t,!1)}getNextKeyPacket(e,t){return this._getNextInternal(e,t,!0)}async _getNextInternal(e,t,i){const r=this.packetInfos.get(e);if(!r)throw new Error("Packet was not created from this track.");const a=i?await r.track._backing.getNextKeyPacket(r.sourcePacket,t):await r.track._backing.getNextPacket(r.sourcePacket,t);if(a)return this.createAdjustedPacket(a,r.segment,r.track);let s=r.segment;for(;;){const e=await this.segmentedInput.getNextSegment(s,{skipLiveWait:t.skipLiveWait});if(!e)return null;const i=this.segmentedInput.getInputForSegment(e),a=(await i.getTracks()).find(e=>e.type===r.track.type&&e.number===r.track.number);if(!a){s=e;continue}const n=await a._backing.getFirstPacket(t);return n?this.createAdjustedPacket(n,e,a):null}}getPacket(e,t){return this._getPacketInternal(e,t,!1)}getKeyPacket(e,t){return this._getPacketInternal(e,t,!0)}async _getPacketInternal(e,t,i){let r=await this.segmentedInput.getSegmentAt(e,{skipLiveWait:t.skipLiveWait});if(!r)return null;for(await this.hydrate();r;){const a=this.segmentedInput.getInputForSegment(r),s=(await a.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number);if(!s){r=await this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait});continue}const n=e-await this.segmentedInput.getMediaOffset(r,a),o=i?await s._backing.getKeyPacket(n,t):await s._backing.getPacket(n,t);if(o)return this.createAdjustedPacket(o,r,s);r=await this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait})}return null}}class Ga extends $a{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}async getColorSpace(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())}async canBeTransparent(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}class Qa extends $a{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}}he();const Ya=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class Ja extends we{constructor(){super(),this._disposed=!1,this._refCount=0,this._usedForHls=!1,this._refFinalizationRegistry=null,this._sizePromise=null,this.onread=null,"undefined"!==typeof FinalizationRegistry&&(this._refFinalizationRegistry=new FinalizationRegistry(e=>{e._decrementRefCount()}))}async getSizeOrNull(){if(this._disposed)throw new mo;return this._sizePromise??(this._sizePromise=(async()=>{let e=this._getFileSize();return void 0!==e||(await this._read(0,1,0,Ya),e=this._getFileSize(),n(void 0!==e)),e})())}async getSize(){if(this._disposed)throw new mo;const e=await this.getSizeOrNull();if(null===e)throw new Error("Cannot determine the size of an unsized source.");return e}slice(e,t){if(!Number.isInteger(e)||e<0)throw new TypeError("offset must be a non-negative integer.");if(void 0!==t&&(!Number.isInteger(t)||t<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new fs(this,e,t)}_dispatchRead(e,t){this.onread?.(e,t),this._emit("read",{start:e,end:t})}ref(){return new Za(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class Za{constructor(e){if(this._freed=!1,e._disposed)throw new Error("Cannot ref a disposed source.");e._incrementRefCount(),e._refFinalizationRegistry?.register(this,e,this),this._source=e}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const e=this.source;n(e._refCount>0),e._decrementRefCount(),e._refFinalizationRegistry?.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class es extends Ja{constructor(e,t){if("string"!==typeof e)throw new TypeError("rootPath must be a string.");if("function"!==typeof t)throw new TypeError("requestHandler must be a function.");super(),this.rootPath=e,this.requestHandler=t}_resolveRequest(e){const t=this.requestHandler(e),i=e=>{var t;if(!(e instanceof Ja||e instanceof Za))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof Ja?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return ce(t)?t.then(i):i(t)}}const ts=(e,t)=>e.path===t.path;class is extends es{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(e,t,i,r){if(!this._root){if(!this._rootRequest){const e=this._resolveRequest({path:this.rootPath,isRoot:!0}),t=e=>{const t=e instanceof Ja?e.ref():e;return this._root=t,this._rootRequest=null,t};ce(e)?this._rootRequest=e.then(t):(t(e),n(this._root))}if(this._rootRequest)return this._rootRequest.then(a=>a.source._read(e,t,i,r))}return this._root.source._read(e,t,i,r)}_getFileSize(){if(this._root)return this._root.source._getFileSize()}_dispose(){this._root?this._root.free():this._rootRequest&&this._rootRequest.then(e=>e.free())}}const rs="undefined"!==typeof FinalizationRegistry?new FinalizationRegistry(e=>{e.cancel().catch(()=>{})}):null;class as extends Ja{constructor(e,t={}){if(!(e instanceof Blob))throw new TypeError("blob must be a Blob.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.maxCacheSize&&(!fe(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.useStreamReader&&"boolean"!==typeof t.useStreamReader)throw new TypeError("options.useStreamReader, when provided, must be a boolean.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(),this._readers=new WeakMap,this._blob=e,this._options=t,this._orchestrator=new hs({maxCacheSize:t.maxCacheSize??8388608,maxWorkerCount:4,runWorker:this._runWorker.bind(this),onIdleWorkerRemoved:e=>{const t=this._readers.get(e);t&&(this._readers.delete(e),rs?.unregister(e),t.cancel().catch(()=>{}))},prefetchProfile:ds.fileSystem,handleUnhandledError:t.handleUnhandledError}),this._orchestrator.fileSize=e.size}_getFileSize(){return this._orchestrator.fileSize}_read(e,t,i,r){return this._orchestrator.read(e,t,i,r)}async _runWorker(e){n(e.strictTarget);let t=this._readers.get(e);if(void 0===t){if("stream"in this._blob&&!te()&&!1!==this._options.useStreamReader){t=this._blob.slice(e.currentPos).stream().getReader(),rs?.register(e,t,e)}else t=null;this._readers.set(e,t)}for(;e.currentPos{if(t instanceof Error&&(t.message.includes("Failed to fetch")||t.message.includes("Load failed")||t.message.includes("NetworkError when attempting to fetch resource"))&&"undefined"!==typeof window){let e=null;try{"undefined"!==typeof window&&"undefined"!==typeof window.location&&(e=new URL(i instanceof Request?i.url:i,window.location.href).origin)}catch{}if(("undefined"===typeof navigator||"boolean"!==typeof navigator.onLine||navigator.onLine)&&null!==e&&e!==window.location.origin)return ve._warn("Request will not be retried because a CORS error was suspected due to different origins. You can modify this behavior by providing your own function for the 'getRetryDelay' option."),null}return Math.min(2**(e-2),16)},ns=new Set;class os extends es{constructor(e,t={}){if("string"!==typeof e&&!(e instanceof URL)&&!("undefined"!==typeof Request&&e instanceof Request))throw new TypeError("url must be a string, URL or Request.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.requestInit&&(!t.requestInit||"object"!==typeof t.requestInit))throw new TypeError("options.requestInit, when provided, must be an object.");if(void 0!==t.getRetryDelay&&"function"!==typeof t.getRetryDelay)throw new TypeError("options.getRetryDelay, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!fe(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.parallelism&&(!Number.isInteger(t.parallelism)||t.parallelism<1))throw new TypeError("options.parallelism, when provided, must be a positive number.");if(void 0!==t.fetchFn&&"function"!==typeof t.fetchFn)throw new TypeError("options.fetchFn, when provided, must be a function.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(e instanceof Request?e.url:e instanceof URL?e.href:e,e=>new os(e.path,this._options)),this._offset=0,this._length=null,this._fileSizeDetermined=!1,this._sequentialBacking=null,this._url=e,this._options=t,this._getRetryDelay=t.getRetryDelay??ss,this._requestInit={...t.requestInit};let i=null;if(t.requestInit?.headers){const e={...Y(t.requestInit.headers)},r=Object.keys(e).find(e=>"range"===e.toLowerCase());void 0!==r&&(i=e[r],delete e[r],this._requestInit.headers=e)}if(e instanceof Request){const t=e.headers.get("Range");if(null!==t){i??(i=t);const r=new Request(e);r.headers.delete("Range"),this._url=r}}if(null!==i){const e=ls(i);e&&(this._offset=e.offset,this._length=e.length)}this._orchestrator=new hs({maxCacheSize:t.maxCacheSize??67108864,maxWorkerCount:t.parallelism??2,runWorker:this._runWorker.bind(this),prefetchProfile:ds.network,handleUnhandledError:t.handleUnhandledError})}_getFileSize(){if(!this._fileSizeDetermined)return null!==this._length?this._length:void 0;const e=this._sequentialBacking?this._sequentialBacking._endIndex:this._orchestrator.fileSize;return null===e?null!==this._length?this._length:null:U(e-this._offset,0,this._length??1/0)}_read(e,t,i,r){if(null!==this._length&&t>this._length)return null;const a=this._offset,s=this._sequentialBacking?this._sequentialBacking._read(a+e,a+t):this._orchestrator.read(a+e,a+t,Math.max(a+i,a),a+Math.min(r,this._length??1/0)),n=e=>e?(e.offset-=this._offset,e):null;return ce(s)?s.then(n):n(s)}async _runWorker(e){for(;;){const i=new AbortController,r=await J(this._options.fetchFn??fetch,this._url,Q(this._requestInit,{headers:{Range:`bytes=${e.currentPos}-`},signal:i.signal}),this._getRetryDelay,()=>this._disposed);if(!r.ok)throw new Error(`Error fetching ${String(this._url)}: ${r.status} ${r.statusText}`);r.redirected&&(this.rootPath=r.url);e:if(null===this._orchestrator.fileSize&&(206===r.status||"basic"===r.type&&!r.headers.has("Content-Encoding"))){const t=r.headers.get("Content-Range");if(t){const e=/\/(\d+)/.exec(t);if(e){this._orchestrator.supplyFileSize(Number(e[1]));break e}}const i=r.headers.get("Content-Length");if(i){const t=206===r.status?e.currentPos:0;this._orchestrator.supplyFileSize(t+Number(i))}}if(this._fileSizeDetermined=!0,!r.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");if(206!==r.status){if(this._sequentialBacking)return void r.body.cancel();if(!this._usedForHls){const e=new URL(this._url instanceof Request?this._url.url:this._url,"undefined"!==typeof window?window.location.href:void 0);"null"===e.origin||e.pathname.endsWith(".m3u8")||e.pathname.endsWith(".m3u")||ns.has(e.origin)||(ve._warn(`HTTP server (origin ${e.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. Alternatively, set maxCacheSize to Infinity in the UrlSource options to keep the entire resource in memory.`),ns.add(e.origin))}return void this._transitionToSequentialMode(r.body)}const a=r.body.getReader();for(;;){if(e.currentPos>=e.targetPos||e.aborted)return i.abort(),void this._orchestrator.signalWorkerStoppedRunning(e);let r;try{r=await a.read()}catch(t){if(this._disposed)throw t;const e=this._getRetryDelay(1,t,this._url);if(null!==e){ve._error("Error while reading response stream. Attempting to resume.",t),await be(1e3*e);break}throw t}if(e.aborted)continue;const{done:s,value:n}=r;if(s){if(e.currentPos>=e.targetPos)return void this._orchestrator.onWorkerFinished(e);if(e.strictTarget)break;return void this._orchestrator.onWorkerFinished(e)}this._dispatchRead(e.currentPos,e.currentPos+n.length),this._orchestrator.supplyWorkerData(e,n)}}}_transitionToSequentialMode(e){let t=e.getReader(),i=0,r=0;const a=new ReadableStream({pull:async e=>{for(;;){let s;try{s=await t.read()}catch(a){if(this._disposed)throw a;const e=this._getRetryDelay(1,a,this._url);if(null===e)throw a;ve._error("Error while reading response stream. Attempting to resume.",a),await be(1e3*e);const s=await J(this._options.fetchFn??fetch,this._url,Q(this._requestInit,{headers:{Range:`bytes=${i}-`}}),this._getRetryDelay,()=>this._disposed);if(!s.ok)throw new Error(`Error fetching ${String(this._url)}: ${s.status} ${s.statusText}`);if(!s.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");t=s.body.getReader(),r=206===s.status?0:i;continue}if(s.done)return void e.close();let n=s.value;if(r>0){const e=Math.min(r,n.length);r-=e,n=n.subarray(e)}if(0!==n.length)return i+=n.length,void e.enqueue(n)}},cancel:()=>t.cancel()}),s=new us(a,{maxCacheSize:this._orchestrator.options.maxCacheSize,handleUnhandledError:this._options.handleUnhandledError});s._endIndex=this._orchestrator.fileSize,s._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. Because the HTTP server did not honor the range request, data can only be read sequentially, with old data being evicted from the cache. To fix this issue, either ensure your server responds to range requests with 206 Partial Content, or set maxCacheSize to Infinity in the UrlSource options. Note that the latter will store the entire file in the cache if needed, no matter how large.",s.on("read",({start:e,end:t})=>this._dispatchRead(e,t)),this._sequentialBacking=s;const o=new Set;for(const n of this._orchestrator.workers){for(const e of n.pendingSlices)o.add(e);n.aborted=!0,n.pendingSlices.length=0}for(const n of this._orchestrator.queuedReads)for(const e of n.pendingSlices)o.add(e);this._orchestrator.workers.length=0,this._orchestrator.queuedReads.length=0;for(const c of o){const e=s._read(c.start,c.start+c.bytes.length);ce(e)?e.then(e=>{e?(n(e.offset===c.start),c.resolve(e.bytes)):c.resolve(null)},e=>c.reject(e)):(n(null===e),c.resolve(null))}}_dispose(){this._orchestrator.dispose(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}}const cs=/^bytes=(\d+)-(\d*)$/,ls=e=>{const t=cs.exec(e.trim());if(!t)return null;const i=Number(t[1]),r=""===t[2]?null:Number(t[2]);return null!==r&&rthis._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);const i=_(this._cache,e,e=>e.start),r=-1!==i?this._cache[i]:null;if(r&&r.start<=e&&t<=r.end)return{bytes:r.bytes,view:r.view,offset:r.start};let a=e;const s=new Uint8Array(t-e);if(-1!==i)for(let l=i;l=t)break;const r=Math.max(e,i.start);r>a&&this._throwDueToCacheMiss();const n=Math.min(t,i.end);ra&&this._throwDueToCacheMiss();const{promise:n,resolve:o,reject:c}=F();return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:o,reject:c}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(e=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(t=>t.reject(e)),this._pendingSlices.length=0;else{if(!this._handleUnhandledError)throw e;this._handleUnhandledError(e)}})),n}_throwDueToCacheMiss(){throw new Error(this._cacheMissErrorMessage)}async _pull(){for(this._reader??(this._reader=this._stream.getReader());this._currentIndex0;){const e=this._cache[0];if(this._maxRequestedIndex-e.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=t.byteLength}this._pulling=!1}_dispose(){for(const e of this._pendingSlices)e.reject(new mo);this._pendingSlices.length=0,this._cache.length=0,this._reader?.cancel()}}const ds={fileSystem:(e,t)=>{const i=65536;return{start:e=Math.floor((e-i)/i)*i,end:t=Math.ceil((t+i)/i)*i}},network:(e,t,i)=>{const r=65536;e=Math.max(0,Math.floor((e-r)/r)*r);for(const a of i){const i=8388608,r=Math.max((a.startPos+a.targetPos)/2,a.targetPos-i);if(ue(e,t,r,a.targetPos)){const e=a.targetPos-a.startPos,r=Math.ceil((e+1)/i)*i,s=2**Math.ceil(Math.log2(e+1)),n=Math.min(s,r);t=Math.max(t,a.startPos+n)}}return{start:e,end:t=Math.max(t,e+524288)}}};class hs{constructor(e){this.options=e,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(e,t,i,r){n(!this.disposed);const a=this.options.prefetchProfile(e,t,this.workers),s=Math.max(a.start,i),o=Math.min(a.end,this.fileSize??1/0,r);n(s<=e&&t<=o);let c=null;const l=_(this.cache,e,e=>e.start),u=-1!==l?this.cache[l]:null;u&&u.start<=e&&t<=u.end&&(u.age=this.nextAge++,c={bytes:u.bytes,view:u.view,offset:u.start});const d=_(this.cache,s,e=>e.start),h=c?null:new Uint8Array(t-e);let m=0,p=s;const g=[];if(-1!==d){for(let i=d;i=o)break;if(r.end<=s)continue;const a=Math.max(s,r.start),c=Math.min(o,r.end);if(n(a<=c),p=h.length&&(c={bytes:h,view:f(h),offset:e}),0===g.length)return n(c),c;const{promise:k,resolve:y,reject:b}=F(),w=[];for(const n of g){const i=Math.max(e,n.start),r=Math.min(t,n.end);i===n.start&&r===n.end?w.push(n):ie.hole.start),i=-1!==t?this.queuedReads[t]:null;for(i&&n.start<=i.hole.end?(i.hole.end=Math.max(i.hole.end,n.end),i.strictTarget&&(i.strictTarget=e),T&&i.pendingSlices.push(T)):(t++,i={hole:{start:n.start,end:n.end},strictTarget:e,pendingSlices:T?[T]:[],age:this.nextAge++},this.queuedReads.splice(t,0,i));t+1i.hole.end)break;i.hole.end=Math.max(i.hole.end,e.hole.end),i.pendingSlices.push(...e.pendingSlices),i.strictTarget&&(i.strictTarget=e.strictTarget),i.age=Math.min(i.age,e.age),this.queuedReads.splice(t+1,1)}}}return c?k.catch(e=>{if(!this.disposed){if(!this.options.handleUnhandledError)throw e;this.options.handleUnhandledError(e)}}):(n(h),c=k.then(t=>t&&{bytes:t,view:f(t),offset:e})),c}checkHoleAgainstWorker(e,t,i){if(ue(t.start-2**17,t.start,e.currentPos,e.targetPos)){e.targetPos=Math.max(e.targetPos,t.end);for(let t=0;t=this.options.maxWorkerCount){let e=null,t=null;for(let i=0;i{if(e.running=!1,e.pendingSlices.length>0)e.pendingSlices.forEach(e=>e.reject(t)),e.pendingSlices.length=0;else if(!e.aborted&&!this.disposed){if(!this.options.handleUnhandledError)throw t;this.options.handleUnhandledError(t)}}).finally(()=>{if(!e.running&&this.queuedReads.length>0){let e=0;for(let r=1;re.targetPos&&(e.targetPos=e.currentPos,this.checkQueuedReadsAgainstWorker(e));for(let a=0;at.start&&(t.start=r),t.end<=t.start&&(s.holes.splice(e,1),e--)}0===s.holes.length&&(s.resolve(s.bytes),e.pendingSlices.splice(a,1),a--)}for(let a=0;ae){r.resolve(null),t.pendingSlices.splice(i,1),i--;break}}}for(let t=0;t=e){for(const e of i.pendingSlices)e.resolve(null);this.queuedReads.splice(t,1),t--}else if(i.hole.end>e){i.hole.end=e,i.strictTarget=!0;for(let t=0;t=e&&(r.resolve(null),i.pendingSlices.splice(t,1),t--)}}}}signalWorkerStoppedRunning(e){e.running=!1,e.aborted||(e.pendingSlices.length=0)}onWorkerFinished(e){const t=this.workers.indexOf(e);n(-1!==t),e.running=!1,this.workers.splice(t,1),this.options.onIdleWorkerRemoved?.(e),null===this.fileSize&&this.supplyFileSize(e.currentPos);for(const i of e.pendingSlices)i.resolve(null)}insertIntoCache(e){if(0===this.options.maxCacheSize)return;let t=_(this.cache,e.start,e=>e.start)+1;if(t>0){const i=this.cache[t-1];if(i.end>=e.end)return;if(i.end>e.start){const r=new Uint8Array(e.end-i.start);r.set(i.bytes,0),r.set(e.bytes,e.start-i.start),this.currentCacheSize+=e.end-i.end,i.bytes=r,i.view=f(r),i.end=e.end,t--,e=i}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length;for(let i=t+1;i=t.end){this.cache.splice(i,1),this.currentCacheSize-=t.bytes.length,i--;continue}const r=new Uint8Array(t.end-e.start);r.set(e.bytes,0),r.set(t.bytes,t.start-e.start),this.currentCacheSize-=e.end-t.start,e.bytes=r,e.view=f(r),e.end=t.end,this.cache.splice(i,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let e=0,t=this.cache[0];for(let i=1;ithis._length)return null;const a=this._baseSource._read(this._offset+e,this._offset+t,this._offset+i,this._offset+r),s=e=>e?(e.offset-=this._offset,e):null;return ce(a)?a.then(s):s(a)}_dispose(){this._ref?.free()}ref(){return this._ref??(this._ref=this._baseSource.ref()),super.ref()}}var ms=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,a;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(a=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");a&&(r=function(){try{a.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t},ps=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,a=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===a)return a=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return a|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else a|=1}catch(n){i(n)}if(1===a)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});const gs=/^0[xX][0-9a-fA-F]+$/,ks=/^data:.*;base64,/i;class ys extends Xa{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){return this.currentUpdateSegmentsPromise??(this.currentUpdateSegmentsPromise=(async()=>{try{const e=this.getRemainingWaitTimeMs();e>0&&await be(e),this.lastSegmentUpdateTime=performance.now(),await this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}})())}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}async updateSegments(){let e=this.nextLines;if(this.nextLines=null,!e){const t={stack:[],error:void 0,hasError:!1};try{const i=ms(t,await this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),r=new po(i.source),a=await r.requestEntireFile();n(a),e=Mo(a,a.length,{ignore:ja}),i.source instanceof es&&(this.rootPath=i.source.rootPath)}catch(T){t.error=T,t.hasError=!0}finally{ps(t)}}const t=!1!==this.input._formatOptions.hls?.offsetTimestampsByDateTime;let i=!1,r=0,a=null,s=null,o=null,l=0,u=null,d=null,h=null,m=null,p=null,g=null,k=!1,y=c(this.segments)??null;const b=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${e}'.`);let r=null;if(-1!==t&&(r=Number(e.slice(t+1)),!Number.isInteger(r)||r<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${e}'.`);return{length:i,offset:r}},w=e=>{l=e,y&&(n(null!==y.sequenceNumber),y.sequenceNumber0&&null!==g&&(r=l*g),k=!0);const e=T.slice(8),t=e.indexOf(","),i=-1===t?e:e.slice(0,t),a=Number(i);if(!Number.isFinite(a)||a<0)throw new Error(`Invalid #EXTINF tag duration '${i}'.`);s=a}else if(T.startsWith(La)){const e=new Ka(T.slice(11)),t=e.get("uri");if(!t)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const i=e.get("byterange");let n=null;if(null!==i&&(n=b(i)),n&&null===n.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!y){const e={path:me(this.rootPath,t),offset:n?.offset??0,length:n?.length??null};if("AES-128"===o?.method&&!o.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");d={timestamp:r,unixEpochTimestamp:a,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:o,initSegment:null,lastProgramDateTimeSeconds:p}}s=null,null===m?h=null:m=null}else if(T.startsWith(za)){const e=new Ka(T.slice(11)),t=e.get("method");if("NONE"===t)o=null;else if("AES-128"===t){const t=e.get("uri");if(!t)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let i=null;const r=e.get("iv");if(r){if(!gs.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(Bi);for(let t=0;t=8&&112===t[4]&&115===t[5]&&115===t[6]&&104===t[7]){const e=f(t).getUint32(0);r=wi(t.subarray(8,Math.min(e,t.length)))}}o={method:t,psshBox:r}}}}else if(T.startsWith(Ua)){const e=T.slice(22),t=Number(e);if(!Number.isInteger(t)||t<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${e}'.`);w(t)}else if(T.startsWith(qa)){const e=b(T.slice(17));if(null===e.offset){if(null===h)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");e.offset=h}m=e,h=e.offset+e.length}else if(T.startsWith(Wa)){if(y)continue;const e=T.slice(25),i=Date.parse(e);if(!Number.isFinite(i))continue;const s=i/1e3;if(p===s)continue;if(null===p&&this.segments.length>0){const e=c(this.segments),i=s-(e.timestamp+e.duration);for(const r of this.segments)r.unixEpochTimestamp=r.timestamp+i,t&&(r.timestamp=r.unixEpochTimestamp)}p=s,a=s,t&&(r=s)}else if("#EXT-X-DISCONTINUITY"===T)u=null;else if(T.startsWith(Ha)){const e=T.slice(22),t=Number(e);if(!Number.isFinite(t)||t<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${e}'.`);this.refreshInterval=t,g=t}else{if("#EXT-X-ENDLIST"===T){this.streamHasEnded=!0;break}if(T.startsWith(Va)){"vod"===T.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==T)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");i=!0}}if(!i)throw new Error("Invalid M3U8 file; no #EXTM3U header.")}async getFirstSegment(){return 0===this.segments.length&&await this.runUpdateSegments(),this.segments[0]??null}async getSegmentAt(e,t){0===this.segments.length&&await this.runUpdateSegments();let i=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const r=_(this.segments,e,e=>e.timestamp);if(-1===r)return null;if(r0;for(;;){if(re.segment===t);if(i)return i.age=this.nextInputCacheAge++,i.input;let r=null;(t.initSegment||t.firstSegment)&&(r=this.getInputForSegment(t.initSegment??t.firstSegment));const a={...this.input._formatOptions,isobmff:{...this.input._formatOptions.isobmff,resolveKeyId:this.input._formatOptions.isobmff?.resolveKeyId&&(e=>{if(!t.encryption||"SAMPLE-AES"!==t.encryption.method&&"SAMPLE-AES-CTR"!==t.encryption.method||!t.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(e);let i=e.psshBoxes;const{psshBox:r}=t.encryption;return null!==r.keyIds&&!r.keyIds.includes(e.keyId)||i.some(e=>Ti(e,r))||(i=[...i,r]),this.input._formatOptions.isobmff.resolveKeyId({...e,psshBoxes:i})})}},s=new ho({source:new is(t.location.path,async e=>{n(e.isRoot);const i={...e,isRoot:!1};let r;const a=t.location.offset>0||null!==t.location.length;if(t.encryption&&"SAMPLE-AES"!==t.encryption.method&&"SAMPLE-AES-CTR"!==t.encryption.method)if("AES-128"===t.encryption.method){const e=t.encryption;n(e.iv);let s=await this.input._getSourceCached(i);if(a){const e=s.source.slice(t.location.offset,t.location.length??void 0).ref();s.free(),s=e}const o=((e,t,i)=>{let r=!1,a=0;const s=new Oi;return new ReadableStream({pull:async n=>{r||(s.init(await t()),r=!0);let o=e.requestSliceRange(a,0,65552);if(ce(o)&&(o=await o),!o||0===o.length)throw new Error("Invalid ciphertext.");const c=o.length;if(c%16!==0)throw new Error("Invalid ciphertext.");const l=65552===c?c-16:c,u=yo(o,l),d=new Uint8Array(l);for(let e=0;e16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const t=d.subarray(0,l-e);n.enqueue(t),n.close(),i()}},cancel:()=>{i()}})})(new po(s.source),async()=>{const t={stack:[],error:void 0,hasError:!1};try{const i=ms(t,await this.input._getSourceCached({path:e.keyUri,isRoot:!1},uo),!1),r=new po(i.source),a=await r.requestSlice(0,Bi);if(!a)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:yo(a,Bi),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{ps(t)}},()=>{s.free()});r=new us(o).ref()}else n(!1);else if(r=await this.input._getSourceCached(i),a){const e=r.source.slice(t.location.offset,t.location.length??void 0).ref();r.free(),r=e}return r}),formats:this.input._formats.filter(e=>!(e instanceof Ls)),initInput:r??void 0,formatOptions:a});s._onFormatDetermined=e=>{if(("SAMPLE-AES"===t.encryption?.method||"SAMPLE-AES-CTR"===t.encryption?.method)&&!e._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:t,input:s,age:this.nextInputCacheAge++});if(this.inputCache.length>4){const e=ge(this.inputCache,e=>e.age);n(-1!==e),this.inputCache.splice(e,1)}return s}async getLiveRefreshInterval(){return 0===this.getRemainingWaitTimeMs()&&await this.runUpdateSegments(),this.streamHasEnded?null:this.refreshInterval}}class bs extends ki{constructor(e){super(e),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){return this.metadataPromise??(this.metadataPromise=(async()=>{n(this.input._rootSource instanceof es);const e=await this.input._reader.requestEntireFile();n(e);const t=Mo(e,e.length,{ignore:ja}),{rootPath:i}=this.input._rootSource,r=[],a=[];for(let n=1;n"video"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],o=[...new Set(a.filter(e=>"audio"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],c=await Promise.all(r.map(async(e,t)=>{const r=[],c=e.attributes.get("codecs");let l;if(c)l=c.split(",").map(e=>e.trim());else{const t=this.getSegmentedInputForPath(e.fullPath),i=await t.getTrackBackings(),r=await Promise.all(i.map(async e=>({track:e,codec:await e.getCodec()})));l=await Promise.all(r.filter(e=>null!==e.codec).map(e=>e.track.getDecoderConfig().then(e=>e.codec)))}const u=e.attributes.get("video"),d=e.attributes.get("audio"),h=l.some(e=>jt.includes(ni(e))),f=l.some(e=>Xt.includes(ni(e)));if(null!==u&&!h){if(!s.includes(u))throw new Error(`Invalid M3U8 file; variant stream references video group "${u}" which is not defined in any #EXT-X-MEDIA tags.`);const e=a.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===u&&"video"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=me(i,t),a=this.getSegmentedInputForPath(r),s=(await a.getTrackBackings()).find(e=>"video"===e.getType());if(!s||null===await s.getCodec())break e;const o=await s.getDecoderConfig().then(e=>e?.codec??null);n(null!==o),l.push(o)}}if(null!==d&&!f){if(!o.includes(d))throw new Error(`Invalid M3U8 file; variant stream references audio group "${d}" which is not defined in any #EXT-X-MEDIA tags.`);const e=a.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===d&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=me(i,t),a=this.getSegmentedInputForPath(r),s=(await a.getTrackBackings()).find(e=>"audio"===e.getType());if(!s||null===await s.getCodec())break e;const o=await s.getDecoderConfig().then(e=>e?.codec??null);n(null!==o),l.push(o)}}l=[...new Set(l)];let m=null,p=null;const g=e.attributes.getAsNumber("bandwidth");n(null!==g);const k=e.attributes.getAsNumber("average-bandwidth"),y=e.attributes.get("name");for(const i of l){const n=ni(i);if(null!==n)if(jt.includes(n)){if(null!==m)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");m=i;const n=e.attributes.get("video");if(null===n){const i=e.attributes.get("resolution");let a=null,s=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(a=Number(e[1]),s=Number(e[2]))}r.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:q,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:m,pairingMask:1n<0?a:null}})}else{if(!o.includes(s))throw new Error(`Invalid M3U8 file; variant stream references audio group "${s}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of a){const a=i.attributes.get("group-id"),n=i.attributes.get("type");if(a!==s||"audio"!==n.toLowerCase())continue;const o=i.attributes.get("channels")??e.attributes.get("channels"),c=null!==o?Number(o.split("/")[0]):null;r.push({id:-1,demuxer:this,backingTrack:null,default:vs(i.attributes),autoselect:vs(i.attributes)||Ps(i.attributes),languageCode:Is(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:i.fullPath??e.fullPath,fullCodecString:p,pairingMask:1n<0?c:null}})}}}}return r})),l=[],u=e=>{const t=l.find(t=>t.fullPath===e.fullPath&&t.info.type===e.info.type);t?(t.pairingMask|=e.pairingMask,t.default||(t.default=e.default),t.autoselect||(t.autoselect=e.autoselect),t.lineNumber=Math.min(t.lineNumber,e.lineNumber),null!==e.peakBitrate&&(t.peakBitrate=Math.max(t.peakBitrate??-1/0,e.peakBitrate)),null!==e.averageBitrate&&(t.averageBitrate=Math.max(t.averageBitrate??-1/0,e.averageBitrate)),t.languageCode===q&&(t.languageCode=e.languageCode)):(e.id=l.length+1,l.push(e))};for(const n of c)for(const e of n)u(e);l.sort((e,t)=>e.lineNumber-t.lineNumber),this.trackBackings=[];for(const n of l)"video"===n.info.type?this.trackBackings.push(new Ts(n)):this.trackBackings.push(new Ss(n));this.internalTracks=l})())}async getTrackBackings(){return await this.readMetadata(),n(this.trackBackings),this.trackBackings}getSegmentedInputForPath(e){let t=this.segmentedInputs.find(t=>t.path===e);if(t)return t;let i=null;if(this.internalTracks){i=this.internalTracks.filter(t=>t.fullPath===e).map(e=>({id:e.id,type:e.info.type}))}return t=new ys(this,e,i,null),this.segmentedInputs.push(t),t}async getMetadataTags(){return{}}async getMimeType(){return Aa}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class ws{constructor(e){this.internalTrack=e,this.hydrationPromise=null}hydrate(){return this.hydrationPromise??(this.hydrationPromise=(async()=>{const e=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let t=null;const i=(await e.getTrackBackings()).filter(e=>e.getType()===this.getType());if(1===i.length)t=i[0];else if(this instanceof Ts){for(const r of i)if(await r.getCodec()===this.getCodec()){t=r;break}}else{n(this instanceof Ss);for(const e of i)if(await e.getCodec()===this.getCodec()){t=e;break}}if(!t)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=t})())}delegate(e){return this.internalTrack.backingTrack?e():this.hydrate().then(e)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return{...xe,default:this.internalTrack.autoselect,primary:this.internalTrack.default}}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){n(this.internalTrack.demuxer.internalTracks);const e=this.internalTrack.info.type;let t=0;for(const i of this.internalTrack.demuxer.internalTracks)if(i.info.type===e&&t++,i===this.internalTrack)break;return t}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(e){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(e))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}async getDurationFromMetadata(e){return await this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(e)}async getLiveRefreshInterval(){return await this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}async getFirstPacket(e){return await this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(e)}async getPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getPacket(e,t)}async getKeyPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(e,t)}async getNextPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getNextPacket(e,t)}async getNextKeyPacket(e,t){return await this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(e,t)}}class Ts extends ws{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return ni(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}async getColorSpace(){return await this.hydrate(),this.backingVideoTrack.getColorSpace()}async canBeTransparent(){return await this.hydrate(),this.backingVideoTrack.canBeTransparent()}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingVideoTrack.getDecoderConfig()}}class Ss extends ws{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return ni(this.internalTrack.fullCodecString)}getNumberOfChannels(){return null!==this.internalTrack.info.numberOfChannels?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingAudioTrack.getDecoderConfig()}}const vs=e=>{const t=e.get("default");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},Ps=e=>{const t=e.get("autoselect");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},Is=e=>{if(null===e)return q;const t=e.split("-")[0];return t||q};class xs{constructor(){this._isIsobmff=!1}}class Cs extends xs{constructor(){super(...arguments),this._isIsobmff=!0}async _getMajorBrand(e){let t=e._reader.requestSlice(0,12);if(ce(t)&&(t=await t),!t)return null;t.skip(4);const i=Do(t,4);return"ftyp"!==i&&"styp"!==i?null:Do(t,4)}_createDemuxer(e){return new Li(e)}}class Bs extends Cs{async _canReadInput(e){const t=await this._getMajorBrand(e);if(null!==t)return"qt "!==t;let i=0;for(let r=0;r<10;r++){let t=e._reader.requestSlice(i,8);if(ce(t)&&(t=await t),!t)return!1;let r=Io(t),a=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(ce(t)&&(t=await t),!t)return!1;r=Eo(t),a=16}if(r8)return!1;if(ur(i,r)!==ir.EBML)return!1;const a=hr(i);if("number"!==typeof a)return!1;let s=e._reader.requestSlice(i.filePos,a);if(ce(s)&&(s=await s),!s)return!1;const n=i.filePos;for(;s.filePos<=n+a-2;){const e=fr(s);if(!e)break;const{id:i,size:r}=e,a=s.filePos;if(void 0===r)return!1;switch(i){case ir.EBMLVersion:if(1!==ur(s,r))return!1;break;case ir.EBMLReadVersion:if(1!==ur(s,r))return!1;break;case ir.DocType:if(mr(s,r)!==t)return!1;break;case ir.DocTypeVersion:if(ur(s,r)>4)return!1}s.filePos=a+r}return!0}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new Wr(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class Rs extends _s{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class Fs extends xs{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,qo);if(ce(i)&&(i=await i),!i)break;const r=jo(i);if(!r)break;t=i.filePos+r.size}const i=await Kr(e._reader,t,t+4096);if(!i)return!1;const r=i.header,a=di(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+a,4);if(ce(s)&&(s=await s),!s)return!1;const n=Io(s);if(n===li||n===ui)return!0;t=i.startPos+i.header.totalSize;const o=await Kr(e._reader,t,t+4);if(!o)return!1;const c=o.header;return r.channel===c.channel&&r.sampleRate===c.sampleRate}_createDemuxer(e){return new Xr(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class As extends xs{async _canReadInput(e){let t=e._reader.requestSlice(0,12);if(ce(t)&&(t=await t),!t)return!1;const i=Do(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===Do(t,4)}_createDemuxer(e){return new la(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class Ds extends xs{async _canReadInput(e){let t=e._reader.requestSlice(0,4);return ce(t)&&(t=await t),!!t&&"OggS"===Do(t,4)}_createDemuxer(e){return new ra(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class Ms extends xs{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,qo);if(ce(i)&&(i=await i),!i)break;const r=jo(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return ce(i)&&(i=await i),!!i&&"fLaC"===Do(i,4)}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new ga(e)}}class Ns extends xs{async _canReadInput(e){let t=0;for(;;){let i=e._reader.requestSlice(t,qo);if(ce(i)&&(i=await i),!i)break;const r=jo(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(ce(i)&&(i=await i),!i)return!1;const r=ha(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),ce(i)&&(i=await i),!i)return!1;const a=ha(i);return!!a&&(r.objectType===a.objectType&&r.samplingFrequencyIndex===a.samplingFrequencyIndex&&r.channelConfiguration===a.channelConfiguration)}_createDemuxer(e){return new ma(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class Os extends xs{async _canReadInput(e){let t=e._reader.requestSlice(0,205);if(ce(t)&&(t=await t),!t)return!1;const i=yo(t,205);return 71===i[0]&&71===i[188]||(71===i[0]&&71===i[204]||71===i[4]&&71===i[196])}_createDemuxer(e){return new Pa(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class Ls extends xs{async _canReadInput(e){let t=e._reader.requestSlice(0,7);if(ce(t)&&(t=await t),!t)return!1;if(!("#EXTM3U"===Do(t,7)))return!1;if(!(e._rootSource instanceof es))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return e._rootSource._usedForHls=!0,!0}_createDemuxer(e){return new bs(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return Aa}}const zs=new Bs,Us=new Es,qs=new _s,Ws=new Rs,Hs=new Fs,Vs=new As,js=new Ds,Ks=new Ns,Xs=new Ms,$s=new Os,Gs=new Ls,Qs=[Gs,zs,Us,qs,Ws,Vs,js,Xs,Hs,Ks,$s],Ys=[Gs,zs,Us,Hs,Ks,$s];var Js=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,a=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===a)return a=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return a|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else a|=1}catch(n){i(n)}if(1===a)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});he();let Zs=-1/0,en=-1/0,tn=null;"undefined"!==typeof FinalizationRegistry&&(tn=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-Zs>=1e3&&(ve._error("A VideoSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your VideoSamples as soon as you're done using them."),Zs=t),"undefined"!==typeof VideoFrame&&e.data instanceof VideoFrame&&e.data.close()):(t-en>=1e3&&(ve._error("An AudioSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your AudioSamples as soon as you're done using them."),en=t),"undefined"!==typeof AudioData&&e.data instanceof AudioData&&e.data.close())}));class rn{constructor(){this._referenceCount=0,this._lastAllocationBuffer=null}}const an=["I420","I420P10","I420P12","I420A","I420AP10","I420AP12","I422","I422P10","I422P12","I422A","I422AP10","I422AP12","I444","I444P10","I444P12","I444A","I444AP10","I444AP12","NV12","RGBA","RGBX","BGRA","BGRX"],sn=new Set(an);class nn{get codedWidth(){return this.visibleRect.width}get codedHeight(){return this.visibleRect.height}get displayWidth(){return this.rotation%180===0?this.squarePixelWidth:this.squarePixelHeight}get displayHeight(){return this.rotation%180===0?this.squarePixelHeight:this.squarePixelWidth}get microsecondTimestamp(){return Math.trunc(G*this.timestamp)}get microsecondDuration(){return Math.trunc(G*this.duration)}get hasAlpha(){return this.format&&this.format.includes("A")}constructor(e,t){if(this._closed=!1,e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e)){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0===t.format||!sn.has(t.format))throw new TypeError("init.format must be one of: "+an.join(", "));if(!Number.isInteger(t.codedWidth)||t.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(t.codedHeight)||t.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.layout){if(!Array.isArray(t.layout))throw new TypeError("init.layout, when provided, must be an array.");for(const e of t.layout){if(!e||"object"!==typeof e||Array.isArray(e))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(e.offset)||e.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(e.stride)||e.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==t.visibleRect&&ye(t.visibleRect,"init.visibleRect"),void 0!==t.displayWidth&&(!Number.isInteger(t.displayWidth)||t.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(void 0!==t.displayHeight&&(!Number.isInteger(t.displayHeight)||t.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(void 0!==t.displayWidth!==(void 0!==t.displayHeight))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=t.format,this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0;const i=t.layout??gn(t.format,t.codedWidth,t.codedHeight);let r=t.colorSpace??null;null===r&&(r="RGBA"===this.format||"RGBX"===this.format||"BGRA"===this.format||"BGRX"===this.format?{primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:{primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:t.visibleRect?.left??0,top:t.visibleRect?.top??0,width:t.visibleRect?.width??t.codedWidth,height:t.visibleRect?.height??t.codedHeight},void 0!==t.displayWidth?(this.squarePixelWidth=this.rotation%180===0?t.displayWidth:t.displayHeight,this.squarePixelHeight=this.rotation%180===0?t.displayHeight:t.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=t._doNotCopy?h(e):h(e).slice(),this._layout=i,this.colorSpace=new dn(r)}else if("undefined"!==typeof VideoFrame&&e instanceof VideoFrame){if(void 0!==t?.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(void 0!==t?.timestamp&&!Number.isFinite(t?.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(void 0!==t?.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");void 0!==t?.visibleRect&&ye(t.visibleRect,"init.visibleRect"),this._data=e,this._layout=null,this.format=e.format,this.visibleRect={left:e.visibleRect?.x??0,top:e.visibleRect?.y??0,width:e.visibleRect?.width??e.codedWidth,height:e.visibleRect?.height??e.codedHeight},this.rotation=t?.rotation??0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=t?.timestamp??e.timestamp/1e6,this.duration=t?.duration??(e.duration??0)/1e6,this.colorSpace=new dn(e.colorSpace)}else if("undefined"!==typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!==typeof SVGImageElement&&e instanceof SVGImageElement||"undefined"!==typeof ImageBitmap&&e instanceof ImageBitmap||"undefined"!==typeof HTMLVideoElement&&e instanceof HTMLVideoElement||"undefined"!==typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!==typeof OffscreenCanvas&&e instanceof OffscreenCanvas){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.visibleRect&&ye(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new nn(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*G),duration:Math.trunc((t.duration??0)*G)||void 0,visibleRect:t.visibleRect&&{x:t.visibleRect.left,y:t.visibleRect.top,width:t.visibleRect.width,height:t.visibleRect.height}}),t);let i=0,r=0;if("naturalWidth"in e?(i=e.naturalWidth,r=e.naturalHeight):"videoWidth"in e?(i=e.videoWidth,r=e.videoHeight):"width"in e&&(i=Number(e.width),r=Number(e.height)),!i||!r)throw new TypeError("Could not determine dimensions.");const a=t.visibleRect??{left:0,top:0,width:i,height:r},s=new OffscreenCanvas(a.width,a.height),n=s.getContext("2d",{alpha:re(),willReadFrequently:!0});if(!n)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");n.drawImage(e,-a.left,-a.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:a.width,height:a.height},this.squarePixelWidth=a.width,this.squarePixelHeight=a.height,this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0,this.colorSpace=new dn({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof rn))throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=e,e._referenceCount++,this.format=e.getFormat(),null!==this.format&&!an.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:e.getCodedWidth(),height:e.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=e.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=e.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=t.rotation??0,this.timestamp=t.timestamp,this.duration=t.duration??0,this.colorSpace=e.getColorSpace()}this.encodeOptions=t?.encodeOptions??{},this.pixelAspectRatio=ke({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),tn?.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return n(null!==this._data),this._data instanceof rn?new nn(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):hn(this._data)?new nn(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(n(this._layout),new nn(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new nn(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(tn?.unregister(this),this._data instanceof rn?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):hn(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){if(pn(e),this._closed)throw new Error("VideoSample is closed.");if(null==(e.format??this.format))throw new Error("Cannot get allocation size when format is null.");if(hn(this._data))return this._data.allocationSize(e);return yn(this,e).allocationSize}async copyTo(e,t={}){if(!P(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(pn(t),this._closed)throw new Error("VideoSample is closed.");if(null==(t.format??this.format))throw new Error("Cannot copy video sample data when format is null.");if(n(null!==this._data),hn(this._data))return this._data.copyTo(e,t);if(t.format&&!["RGBA","RGBX","BGRA","BGRX"].includes(this.format)&&["RGBA","RGBX","BGRA","BGRX"].includes(t.format)){if(!(this._data instanceof rn)){if("undefined"===typeof VideoFrame)throw new Error("For this sample, converting from a non-RGB to an RGB format requires VideoFrame to be defined.");const i=this.toVideoFrame(),r=await i.copyTo(e,t);return i.close(),r}{const i={stack:[],error:void 0,hasError:!1};try{const r=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,a;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(a=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");a&&(r=function(){try{a.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t}(i,await this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation},t.colorSpace??"srgb"),!1);if(!(r instanceof nn))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(r.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${r.format}' instead.`);return await r.copyTo(e,t)}catch(l){i.error=l,i.hasError=!0}finally{Js(i)}}}const i=yn(this,t);n(this.format);const r=h(e);if(r.byteLength!(e.data instanceof Uint8Array)||!Number.isInteger(e.stride)||e.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');s=e}else if(this._data instanceof Uint8Array)n(this._layout),n(this._layout.length===a.length),s=this._layout.map((e,t)=>{const i=Math.ceil(this.codedHeight/a[t].heightDivisor);return{data:this._data.subarray(e.offset,e.offset+e.stride*i),stride:e.stride}});else{const e=this._data.getContext("2d");n(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);s=[{data:h(t.data),stride:4*this.codedWidth}]}const o=[],c=a.length;for(let n=0;na.byteLength)throw new Error("Source buffer OOB read.");if(l+u>r.byteLength)throw new Error("Destination buffer OOB write.");const i=a.subarray(c,c+u);r.set(i,l),c+=t,l+=e.destinationStride}o.push(d)}if(void 0!==t.format){const e=this.format.startsWith("RGB")!==t.format.startsWith("RGB"),a=this.format.includes("X")&&t.format.includes("A");if(e||a)for(let t=0;te+t.data.byteLength,0),i=new Uint8Array(t);let r=0;const a=[];for(const s of e)i.set(s.data,r),a.push(r),r+=s.data.byteLength;return new VideoFrame(i,{format:this.format,layout:e.map((e,t)=>({offset:a[t],stride:e.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}return hn(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(n(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(e,t,i,r,a,s,n,o,c){let l=0,u=0,d=this.displayWidth,h=this.displayHeight,f=0,m=0,p=this.displayWidth,g=this.displayHeight;if(void 0!==s?(l=t,u=i,d=r,h=a,f=s,m=n,void 0!==o?(p=o,g=c):(p=d,g=h)):(f=t,m=i,void 0!==r&&(p=r,g=a)),!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(l))throw new TypeError("sx must be a number.");if(!Number.isFinite(u))throw new TypeError("sy must be a number.");if(!Number.isFinite(d)||d<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(h)||h<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(f))throw new TypeError("dx must be a number.");if(!Number.isFinite(m))throw new TypeError("dy must be a number.");if(!Number.isFinite(p)||p<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(g)||g<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:l,sy:u,sWidth:d,sHeight:h}=this._rotateSourceRegion(l,u,d,h,this.rotation));const k=this.toCanvasImageSource();e.save();const y=f+p/2,b=m+g/2;e.translate(y,b),e.rotate(this.rotation*Math.PI/180);const w=this.rotation%180===0?1:p/g;e.scale(1/w,w),e.drawImage(k,l,u,d,h,-p/2,-g/2,p,g),e.restore()}drawWithFit(e,t){if(!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&mn(t.crop,"options.");const i=e.canvas.width,r=e.canvas.height,a=t.rotation??this.rotation,[s,n]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let o,c,l,u,d=t.crop;d&&(d=fn(d,s,n));const{sx:h,sy:f,sWidth:m,sHeight:p}=this._rotateSourceRegion(t.crop?.left??0,t.crop?.top??0,t.crop?.width??s,t.crop?.height??n,a);if("fill"===t.fit)o=0,c=0,l=i,u=r;else{const[e,a]=t.crop?[t.crop.width,t.crop.height]:[s,n],d="contain"===t.fit?Math.min(i/e,r/a):Math.max(i/e,r/a);l=e*d,u=a*d,o=(i-l)/2,c=(r-u)/2}e.save();const g=a%180===0?1:l/u;e.translate(i/2,r/2),e.rotate(a*Math.PI/180),e.scale(1/g,g),e.translate(-i/2,-r/2),e.drawImage(this.toCanvasImageSource(),h,f,m,p,o,c,l,u),e.restore()}_rotateSourceRegion(e,t,i,r,a){return 90===a?[e,t,i,r]=[t,this.squarePixelHeight-e-i,r,i]:180===a?[e,t]=[this.squarePixelWidth-e-i,this.squarePixelHeight-t-r]:270===a&&([e,t,i,r]=[this.squarePixelWidth-t-r,e,r,i]),{sx:e,sy:t,sWidth:i,sHeight:r}}_drawWithFitAndMipmapping(e,t,i){const r=e.width,a=e.height,[s,n]=i.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],o=i.crop?i.crop.width:s,c=i.crop?i.crop.height:n;let l=0;2*r0?un(u,d):{canvas:e,context:t,isNew:i.targetIsFresh};f.imageSmoothingQuality="high",i.fillBlack?(f.fillStyle="black",f.fillRect(0,0,u,d)):m||f.clearRect(0,0,u,d),this.drawWithFit(f,{fit:i.fit,rotation:i.rotation,crop:i.crop}),f.globalCompositeOperation="copy";for(let p=l;p>1;p--){const e=r*2**p,t=a*2**p;f.drawImage(h,0,0,e,t,0,0,e/2,t/2)}f.globalCompositeOperation="source-over",l>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(h,0,0,2*r,2*a,0,0,r,a),t.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(n(null!==this._data),this._data instanceof rn||this._data instanceof Uint8Array){const e=this.toVideoFrame();return queueMicrotask(()=>e.close()),e}return this._data}async transform(e){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.width&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(void 0!==e.height&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(void 0!==e.roundDimensionsTo&&(!Number.isInteger(e.roundDimensionsTo)||e.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(void 0!==e.fit&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==e.width&&void 0!==e.height&&void 0===e.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==e.rotate&&![0,90,180,270].includes(e.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(void 0!==e.crop&&mn(e.crop,"options."),void 0!==e.alpha&&!["keep","discard"].includes(e.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");const t=o(this.rotation+(e.rotate??0)),[i,r]=t%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let a=e.crop;a&&(a=fn(a,i,r));const s=a?a.width:i,n=a?a.height:r,c=s/n;let l,u;void 0!==e.width&&void 0===e.height?(l=e.width,u=l/c):void 0===e.width&&void 0!==e.height?(u=e.height,l=u*c):void 0!==e.width&&void 0!==e.height?(l=e.width,u=e.height):(l=s,u=n),l=H(l,e.roundDimensionsTo??1),u=H(u,e.roundDimensionsTo??1);const d={width:l,height:u,fit:e.fit??"fill",rotation:t,crop:a??{left:0,top:0,width:i,height:r},alpha:e.alpha??"keep"};for(const o of on){let e=o(this,d);if(ce(e)&&(e=await e),null!==e)return e}const{canvas:h,context:f,isNew:m}=un(d.width,d.height);return this._drawWithFitAndMipmapping(h,f,{fit:d.fit,rotation:d.rotation,crop:d.crop,targetIsFresh:m,fillBlack:"discard"===d.alpha}),new nn(h,{timestamp:this.timestamp,duration:this.duration,rotation:0})}setRotation(e){if(![0,90,180,270].includes(e))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}setDuration(e){if(!Number.isFinite(e)||e<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=e}setEncodeOptions(e){if(!e||"object"!==typeof e)throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=e}[Symbol.dispose](){this.close()}}const on=[],cn=[];let ln=0;const un=(e,t)=>{for(const a of cn)if(a.canvas.width===e&&a.canvas.height===t)return a.age=ln++,{canvas:a.canvas,context:a.context,isNew:!1};let i;if("undefined"!==typeof OffscreenCanvas)i=new OffscreenCanvas(e,t);else{if("undefined"===typeof window||"undefined"===typeof document)throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");i=document.createElement("canvas"),i.width=e,i.height=t}const r=i.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return cn.length>=3&&cn.splice(ge(cn,e=>e.age),1),cn.push({canvas:i,context:r,age:ln++}),{canvas:i,context:r,isNew:!0}};class dn{constructor(e){if(void 0!==e){if(!e||"object"!==typeof e)throw new TypeError("init.colorSpace, when provided, must be an object.");const t=Object.keys(g);if(null!=e.primaries&&!t.includes(e.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${t.join(", ")}.`);const i=Object.keys(y);if(null!=e.transfer&&!i.includes(e.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${i.join(", ")}.`);const r=Object.keys(w);if(null!=e.matrix&&!r.includes(e.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${r.join(", ")}.`);if(null!=e.fullRange&&"boolean"!==typeof e.fullRange)throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=e?.primaries??null,this.transfer=e?.transfer??null,this.matrix=e?.matrix??null,this.fullRange=e?.fullRange??null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}const hn=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,fn=(e,t,i)=>{const r=Math.min(e.left,t),a=Math.min(e.top,i),s=Math.min(e.width,t-r),o=Math.min(e.height,i-a);return n(s>=0),n(o>=0),{left:r,top:a,width:s,height:o}},mn=(e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},pn=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!==typeof e.format)throw new TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw new TypeError("options.layout, when provided, must be an array.");for(const t of e.layout){if(!t||"object"!==typeof t)throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==e.rect){if(!e.rect||"object"!==typeof e.rect)throw new TypeError("options.rect, when provided, must be an object.");if(void 0!==e.rect.x&&(!Number.isInteger(e.rect.x)||e.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(void 0!==e.rect.y&&(!Number.isInteger(e.rect.y)||e.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(void 0!==e.rect.width&&(!Number.isInteger(e.rect.width)||e.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(void 0!==e.rect.height&&(!Number.isInteger(e.rect.height)||e.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},gn=(e,t,i)=>{const r=kn(e),a=[];let s=0;for(const n of r){const e=Math.ceil(t/n.widthDivisor),r=Math.ceil(i/n.heightDivisor),o=e*n.sampleBytes,c=o*r;a.push({offset:s,stride:o}),s+=c}return a},kn=e=>{const t=(e,t,i,r,a)=>{const s=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:i,heightDivisor:r},{sampleBytes:t,widthDivisor:i,heightDivisor:r}];return a&&s.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),s};switch(e){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:N(e),n(!1)}},yn=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,a=bn(i,r,e.codedWidth,e.codedHeight,e.format),s=t.layout;let n;if(t.format&&t.format!==e.format){if(!["RGBA","RGBX","BGRA","BGRX"].includes(t.format))throw new Error("NotSupportedError: Invalid destination format.");n=t.format}else n=e.format;return Tn(a,n,s)},bn=(e,t,i,r,a)=>{const s={...e};if(void 0!==t){if(0===t.width||0===t.height)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>i)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");s.x=t.x||0,s.y=t.y||0,s.width=t.width||0,s.height=t.height||0}if(!wn(a,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},wn=(e,t)=>{if(null===e)return!0;const i=kn(e);for(let r=0;r{const r=kn(t),a=r.length;if(void 0!==i&&i.length!==a)throw new TypeError(`Layout must have ${a} planes.`);let s=0;const n=[],o=[];for(let c=0;c4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(h),s=Math.max(s,h);for(let e=0;e 0.");if(!Number.isInteger(e.numberOfChannels)||0===e.numberOfChannels)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(e?.timestamp))throw new TypeError("init.timestamp must be a number.");const t=e.data.byteLength/(In(e.format)*e.numberOfChannels);if(!Number.isInteger(t))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");let i;if(this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=t,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp,this.duration=t/e.sampleRate,e.data instanceof ArrayBuffer)i=new Uint8Array(e.data);else{if(!ArrayBuffer.isView(e.data))throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");i=new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}const r=this.numberOfFrames*this.numberOfChannels*In(this.format);if(i.byteLength=this.numberOfFrames)throw new RangeError("frameOffset out of range");const r=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-i;if(r>this.numberOfFrames-i)throw new RangeError("frameCount out of range");const a=In(t),s=xn(t);if(s&&e.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!s&&0!==e.planeIndex)throw new RangeError("planeIndex out of range");return(s?r:r*this.numberOfChannels)*a}copyTo(e,t){if(!P(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!Sn.has(t.format))throw new TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:i,frameCount:r,frameOffset:a}=t;let{planeIndex:s}=t,o=this.format;const c=i??this.format;if(!c)throw new Error("Destination format not determined");const l=this.numberOfFrames,u=this.numberOfChannels,d=a??0;if(d>=l)throw new RangeError("frameOffset out of range");const h=void 0!==r?r:l-d;if(h>l-d)throw new RangeError("frameCount out of range");const m=In(c),p=xn(c);if(p&&s>=u)throw new RangeError("planeIndex out of range");if(!p&&0!==s)throw new RangeError("planeIndex out of range");const g=(p?h:h*u)*m;if(e.byteLength2&&c!==o)return void _n(this._data,k,o,c,u,s,d,h);try{return void this._data.copyTo(e,{planeIndex:s,frameOffset:d,frameCount:h,format:c})}catch(I){if("f32-planar"===c)throw I;o="f32-planar"}}const b=Cn(o),w=In(o),T=xn(o);let S;if(this._data instanceof vn){const e=e=>{const t=this._data.getDataPlane(e);if(!(t instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const i=l*w*(T?1:u);if(t.byteLength!==i)throw new TypeError(`Data plane ${e} has invalid size. Expected exactly ${i} bytes, got ${t.byteLength} bytes.`);return t};if(T)if(p)S=e(s),s=0;else{S=new Uint8Array(l*w*u);for(let t=0;tthis.numberOfFrames)throw new RangeError("startFrame out of range.");if(t>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(t0)for(let r=0;r0&&this.copyTo(a,{planeIndex:0,format:this.format,frameOffset:e,frameCount:i});return new Pn({data:a,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(tn?.unregister(this),this._data instanceof vn?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):En(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof vn?this._createAudioDataFromData():En(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(xn(this.format)){const e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels);for(let i=0;i0;){const a=Math.min(s,o),c=new Float32Array(i*a);for(let t=0;t0;){const a=Math.min(s,o),l=new Float32Array(i*a);for(let t=0;t{switch(e){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},xn=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},Cn=e=>{switch(e){case"u8":case"u8-planar":return(e,t)=>(e.getUint8(t)-128)/128;case"s16":case"s16-planar":return(e,t)=>e.getInt16(t,!0)/32768;case"s32":case"s32-planar":return(e,t)=>e.getInt32(t,!0)/2147483648;case"f32":case"f32-planar":return(e,t)=>e.getFloat32(t,!0)}},Bn=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,U(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,U(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,U(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},En=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,_n=(e,t,i,r,a,s,n,o)=>{const c=Cn(i),l=Bn(r),u=In(i),d=In(r),h=xn(i);if(xn(r))if(h){const r=new ArrayBuffer(o*u),a=f(r);e.copyTo(r,{planeIndex:s,frameOffset:n,frameCount:o,format:i});for(let e=0;e{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!==typeof e.metadataOnly)throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!==typeof e.verifyKeyPackets)throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(void 0!==e.skipLiveWait&&"boolean"!==typeof e.skipLiveWait)throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},Dn=e=>{if(!fe(e))throw new TypeError("timestamp must be a number.")},Mn=(e,t,i)=>i.verifyKeyPackets?t.then(async t=>{if(!t||"delta"===t.type)return t;const i=await e.determinePacketType(t);return i&&(t.type=i),t}):t;class Nn{constructor(e){if(!(e instanceof Yn))throw new TypeError("track must be an InputTrack.");this._track=e}async getFirstPacket(e={}){if(An(e),this._track.input._disposed)throw new mo;return Mn(this._track,this._track._backing.getFirstPacket(e),e)}async getFirstKeyPacket(e={}){An(e);const t=await this.getFirstPacket(e);return t?"key"===t.type?t:this.getNextKeyPacket(t,e):null}async getPacket(e,t={}){if(Dn(e),An(t),this._track.input._disposed)throw new mo;return Mn(this._track,this._track._backing.getPacket(e,t),t)}async getNextPacket(e,t={}){if(!(e instanceof bi))throw new TypeError("packet must be an EncodedPacket.");if(An(t),this._track.input._disposed)throw new mo;return Mn(this._track,this._track._backing.getNextPacket(e,t),t)}async getKeyPacket(e,t={}){if(Dn(e),An(t),this._track.input._disposed)throw new mo;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const i=await this._track._backing.getKeyPacket(e,t);if(!i)return i;n("key"===i.type);return"delta"===await this._track.determinePacketType(i)?this.getKeyPacket(i.timestamp-1/await this._track.getTimeResolution(),t):i}async getNextKeyPacket(e,t={}){if(!(e instanceof bi))throw new TypeError("packet must be an EncodedPacket.");if(An(t),this._track.input._disposed)throw new mo;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const i=await this._track._backing.getNextKeyPacket(e,t);if(!i)return i;n("key"===i.type);return"delta"===await this._track.determinePacketType(i)?this.getNextKeyPacket(i,t):i}packets(e,t,i={}){if(void 0!==e&&!(e instanceof bi))throw new TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!i?.metadataOnly)throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof bi))throw new TypeError("endPacket must be an EncodedPacket.");if(An(i),this._track.input._disposed)throw new mo;const r=[];let{promise:a,resolve:s}=F(),{promise:n,resolve:o}=F(),c=!1,l=!1,u=null,d=!1;const h=[],f=()=>Math.max(2,h.length);(async()=>{let u=e??await this.getFirstPacket(i);for(;u&&!l&&!this._track.input._disposed&&!(t&&u.sequenceNumber>=t?.sequenceNumber);)r.length>f()?(({promise:n,resolve:o}=F()),await n):(r.push(u),s(),({promise:a,resolve:s}=F()),u=await this.getNextPacket(u,i));c=!0,s()})().catch(e=>{d||(u=e,d=!0,s())});const m=this._track;return{async next(){for(;;){if(m.input._disposed)throw new mo;if(l)return{value:void 0,done:!0};if(d)throw u;if(r.length>0){const e=r.shift(),t=performance.now();for(h.push(t);h.length>0&&t-h[0]>=1e3;)h.shift();return o(),{value:e,done:!1}}if(c)return{value:void 0,done:!0};await a}},return:async()=>(l=!0,o(),s(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}}class On{constructor(e,t){this.onSample=e,this.onError=t}}class Ln{mediaSamplesInRange(e=-1/0,t=1/0,i){Dn(e),Dn(t);const r=[];let a=!1,s=null,{promise:n,resolve:o}=F(),{promise:c,resolve:l}=F(),u=!1,d=!1,h=!1,f=null,m=null,p=!1;const g={...i,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{f=await this._createDecoder(i=>{l(),i.timestamp>=t&&(d=!0),d?i.close():(s&&(i.timestamp>e?(r.push(s),a=!0):s.close()),i.timestamp>=e&&(r.push(i),a=!0),s=a?null:i,r.length>0&&(o(),({promise:n,resolve:o}=F())))},e=>{p||(m=e,p=!0,o())});const i=this._createPacketSink(),k=await i.getKeyPacket(e,g)??await i.getFirstKeyPacket(g);let y=k;const b=i.packets(k??void 0,void 0,g);for(await b.next();y&&!d&&!this._track.input._disposed;){const e=zn(r.length);if(r.length+f.getDecodeQueueSize()>e){({promise:c,resolve:l}=F()),await c;continue}f.decode(y);const t=await b.next();if(t.done)break;y=t.value}await b.return(),h||this._track.input._disposed||await f.flush(),!a&&s&&r.push(s),u=!0,o()})().catch(e=>{p||(m=e,p=!0,o())}).finally(()=>{f?.close()});const k=this._track,y=()=>{s?.close();for(const e of r)e.close()};return{async next(){for(;;){if(k.input._disposed)throw h=!0,d=!0,y(),new mo;if(h)return{value:void 0,done:!0};if(p)throw h=!0,d=!0,y(),m;if(r.length>0){const e=r.shift();return l(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};await n}},return:async()=>(h=!0,d=!0,l(),o(),y(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(e,t){(e=>{if(!(Symbol.iterator in e)&&!(Symbol.asyncIterator in e))throw new TypeError("Argument must be an iterable or async iterable.")})(e);const i=async function*(e){Symbol.iterator in e?yield*e[Symbol.iterator]():yield*e[Symbol.asyncIterator]()}(e),r=[],a=[];let{promise:s,resolve:o}=F(),{promise:c,resolve:l}=F(),u=!1,d=!1,h=null,f=null,m=!1;const p=e=>{a.push(e),o(),({promise:s,resolve:o}=F())},g={...t,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{h=await this._createDecoder(e=>{if(l(),d)return void e.close();let t=0;for(;r.length>0&&e.timestamp-r[0]>-1e-10;)t++,r.shift();if(t>0)for(let i=0;i{m||(f=e,m=!0,o())});const e=this._createPacketSink();let t=null,s=null,k=-1;const y=async()=>{n(s),n(h);let t=s;for(h.decode(t);t.sequenceNumberi&&!d;)({promise:c,resolve:l}=F()),await c;if(d)break;const r=await e.getNextPacket(t,g);n(r),h.decode(r),t=r}k=-1},b=async()=>{n(h),await h.flush();for(let e=0;e{m||(f=e,m=!0,o())}).finally(()=>{h?.close()});const k=this._track,y=()=>{for(const e of a)e?.close()};return{async next(){for(;;){if(k.input._disposed)throw d=!0,y(),new mo;if(d)return{value:void 0,done:!0};if(m)throw d=!0,y(),f;if(a.length>0){const e=a.shift();return n(void 0!==e),l(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};await s}},return:async()=>(d=!0,l(),o(),y(),{value:void 0,done:!0}),async throw(e){throw e},[Symbol.asyncIterator](){return this}}}}const zn=e=>0===e?40:8;class Un extends On{constructor(e,t,i,r,a,s){super(e,t),this.codec=i,this.decoderConfig=r,this.rotation=a,this.timeResolution=s,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new Z,this.customDecoderQueueSize=0,this.inputTimestamps=[],this.sampleQueue=[],this.currentPacketIndex=0,this.raslSkipped=!1,this.alphaDecoder=null,this.alphaHadKeyframe=!1,this.colorQueue=[],this.alphaQueue=[],this.merger=null,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue=[],this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,this.finalSamples=[],this.mergeAlphaPromises=[];const o=Rn.find(e=>e.supports(i,r));if(o)this.customDecoder=new o,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof nn))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=e=>{if(this.alphaQueue.length>0){const t=this.alphaQueue.shift();n(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(se()){if("avc"===i&&this.decoderConfig.description){const e=Ge(h(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=Ye(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig={...this.decoderConfig,hardwareAcceleration:"prefer-software"}),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=Ze(t),this.decoderConfig={...this.decoderConfig,description:$e(e)}))}}S(this.decoderConfig.colorSpace)||(this.decoderConfig={...this.decoderConfig,colorSpace:{primaries:this.decoderConfig.colorSpace?.primaries??"bt709",matrix:this.decoderConfig.colorSpace?.matrix??"bt709",transfer:this.decoderConfig.colorSpace?.transfer??"bt709",fullRange:this.decoderConfig.colorSpace?.fullRange??!1}})}const t=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(n(this.decoder),Math.max(this.decoder.decodeQueueSize,this.alphaDecoder?.decodeQueueSize??0))}decode(e){if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--);else{if(n(this.decoder),te()||R(this.inputTimestamps,e.timestamp,e=>e),se()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const a of qe(e.data,this.decoderConfig)){const r=We(e.data[a.offset]);if(i||(i=r>=1&&r<=5),r===Me.AUD){if(i)break;t.length=0}r>=20&&r<=31||t.push(e.data.subarray(a.offset,a.offset+a.length))}if(!this.decoderConfig.description)for(let e=0;e{if(t.description){const i=3&h(t.description)[4];return Ke(e,i+1)}return je(e)})(t,this.decoderConfig);e=new bi(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=ft(e.data,this.decoderConfig);t&&(e=new bi(t,e.type,e.timestamp,e.duration))}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}decodeAlphaData(e){if(!e.sideData.alpha)return void this.pushNullAlphaFrame();if(this.merger||(this.merger=new Wn),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();n(void 0!==t),this.mergeAlpha(t,e)}else this.alphaQueue.push(e);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){const e=this.colorQueue.shift();n(void 0!==e),this.mergeAlpha(e,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},t=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}const t=Tt(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===t),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(t??e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(const t of et(e,this.decoderConfig)){const i=tt(e[t.offset]);if(i===Oe.RASL_N||i===Oe.RASL_R)return!0}return!1}sampleHandler(e){if(te()){if(this.sampleQueue.length>0&&e.timestamp>=c(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}R(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();n(void 0!==t),e.setTimestamp(t),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}async mergeAlpha(e,t){const i=F();this.mergeAlphaPromises.push(i.promise);const r={sample:null};this.finalSamples.push(r);try{if(t){n(this.merger);const i=await this.merger.merge(e,t);r.sample=new nn(i)}else r.sample=new nn(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(a){A(this.finalSamples,r),this.onError(a)}finally{A(this.mergeAlphaPromises,i.promise),i.resolve()}}async flush(){if(this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(n(this.decoder),await Promise.all([this.decoder.flush(),this.alphaDecoder?.flush()]),await Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>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),te()){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(n(this.decoder),"closed"!==this.decoder.state&&this.decoder.close(),this.alphaDecoder&&"closed"!==this.alphaDecoder.state&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>e?.close()),this.alphaQueue.length=0,this.merger?.close());for(const e of this.sampleQueue)e.close();this.sampleQueue.length=0}}let qn=null;class Wn{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!qn){const e=new Blob([`(${Hn.toString()})()`],{type:"application/javascript"});qn=URL.createObjectURL(e)}const e=U(navigator.hardwareConcurrency,1,4);for(let t=0;t{const t=e.data,i=this.pendingRequests.get(t.id);i&&(this.pendingRequests.delete(t.id),"error"in t?i.reject(new Error(t.error)):i.resolve(t.frame))}),e.addEventListener("error",e=>{const t=new Error(e.message||"Color/alpha merge worker error.");for(const i of this.pendingRequests.values())i.reject(t);this.pendingRequests.clear()}),this.workers.push(e)}}const i=this.nextRequestId++,r=F();this.pendingRequests.set(i,r);const a=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,a.postMessage({id:i,color:e,alpha:t},{transfer:[e,t]}),r.promise}close(){for(const t of this.workers)t.terminate();this.workers.length=0;const e=new Error("Color/alpha merger closed.");for(const t of this.pendingRequests.values())t.reject(e);this.pendingRequests.clear()}}const Hn=()=>{let e=null,t=null,i=Promise.resolve();self.addEventListener("message",e=>{const{id:t,color:a,alpha:s}=e.data;i=i.then(async()=>{try{const e=await r(a,s);self.postMessage({id:t,frame:e},{transfer:[e]})}catch(e){self.postMessage({id:t,error:e.message})}finally{a.close(),s.close()}})});const r=async(e,t)=>{const i=e.format,r=t.format;if(!i||!r)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");const o=i.includes("P10"),c=i.includes("P12"),l=r.includes("P10"),u=r.includes("P12");if(l!==o||u!==c)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${i}', alpha: '${r}').`);if("RGBX"===i||"RGBA"===i||"BGRX"===i||"BGRA"===i)return await a(e,t,i);if("I420"===i||"I420P10"===i||"I420P12"===i||"I422"===i||"I422P10"===i||"I422P12"===i||"I444"===i||"I444P10"===i||"I444P12"===i)return await s(e,t,i);if("NV12"===i)return await n(e,t);throw new Error(`CPU color/alpha merging does not support format '${i}'.`)},a=async(e,t,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=r*a,n=new Uint8Array(4*s);await e.copyTo(n);const c=await o(t,r,a,1);for(let o=0,u=3;o{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=i.includes("P10"),n=i.includes("P12"),c=s||n?2:1;let l,u;i.startsWith("I420")?(l=Math.ceil(r/2),u=Math.ceil(a/2)):i.startsWith("I422")?(l=Math.ceil(r/2),u=a):(l=r,u=a);const d=r*a,h=d*c,f=l*u*c,m=new Uint8Array(h+2*f+d*c);await e.copyTo(m);const p=await o(t,r,a,c),g=h+2*f;m.set(p,g);const k={format:i.slice(0,4)+"A"+i.slice(4),codedWidth:r,codedHeight:a,timestamp:e.timestamp,duration:e.duration??void 0,transfer:[m.buffer]};return new VideoFrame(m,k)},n=async(e,i)=>{const r=e.visibleRect?.width??e.codedWidth,a=e.visibleRect?.height??e.codedHeight,s=r*a,n=Math.ceil(r/2)*Math.ceil(a/2),c=e.allocationSize();t&&t.byteLength===c||(t=new Uint8Array(c)),await e.copyTo(t);const l=new Uint8Array(s+2*n+s);l.set(t.subarray(0,s),0);const u=s,d=s+n,h=s;for(let o=0;o{const s=t.allocationSize();e&&e.byteLength===s||(e=new Uint8Array(s)),await t.copyTo(e);const n=t.format;if("RGBA"===n||"BGRA"===n||"RGBX"===n||"BGRX"===n){const t="RGBA"===n||"RGBX"===n?0:2,a=i*r;for(let i=0;i{if(!e||"object"!==typeof e)throw new TypeError("decoderOptions must be an object.");if(void 0!==e.hardwareAcceleration&&!["no-preference","prefer-hardware","prefer-software"].includes(e.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(void 0!==e.optimizeForLatency&&"boolean"!==typeof e.optimizeForLatency)throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")};class jn extends Ln{constructor(e,t={}){if(!(e instanceof eo))throw new TypeError("videoTrack must be an InputVideoTrack.");Vn(t),super(),this._track=e,this._decoderOptions=t}async _createDecoder(e,t){if(!(await this._track.canDecode())){if("undefined"===typeof VideoDecoder)throw new Error(ne("VideoDecoder"));throw new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=await this._track.getCodec(),r=await this._track.getRotation();let a=await this._track.getDecoderConfig();const s=await this._track.getTimeResolution();return n(i&&a),a={...a,hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency},new Un(e,t,i,a,r,s)}_createPacketSink(){return new Nn(this._track)}async getSample(e,t={}){Dn(e);for await(const i of this.mediaSamplesAtTimestamps([e],t))return i;throw new Error("Internal error: Iterator returned nothing.")}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Kn{constructor(e,t={}){if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof eo))throw new TypeError("videoTrack must be an InputVideoTrack.");if(t&&"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.alpha&&"boolean"!==typeof t.alpha)throw new TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==t.width&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(void 0!==t.height&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(void 0!==t.fit&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==t.width&&void 0!==t.height&&void 0===t.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==t.crop&&mn(t.crop,"options."),void 0!==t.poolSize&&("number"!==typeof t.poolSize||!Number.isInteger(t.poolSize)||t.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");void 0!==t.decoderOptions&&Vn(t.decoderOptions),this._videoTrack=e,this._alpha=t.alpha??!1,this._options=t,this._fit=t.fit??"fill",this._videoSampleSink=new jn(e,t.decoderOptions),this._canvasPool=Array.from({length:t.poolSize??0},()=>null)}_ensureInit(){return this._initPromise??(this._initPromise=(async()=>{const e=this._options,t=this._videoTrack,i=e.rotation??await t.getRotation(),r=await t.getSquarePixelWidth(),a=await t.getSquarePixelHeight(),[s,n]=i%180===0?[r,a]:[a,r];let o=e.crop;o&&(o=fn(o,s,n));let[c,l]=o?[o.width,o.height]:[s,n];const u=c/l;void 0!==e.width&&void 0===e.height?(c=e.width,l=Math.round(c/u)):void 0===e.width&&void 0!==e.height?(l=e.height,c=Math.round(l*u)):void 0!==e.width&&void 0!==e.height&&(c=e.width,l=e.height),this._width=c,this._height=l,this._rotation=i,this._crop=o})())}_videoSampleToWrappedCanvas(e){const t=this._width,i=this._height;let r=this._canvasPool[this._nextCanvasIndex],a=!1;r||("undefined"!==typeof document?(r=document.createElement("canvas"),r.width=t,r.height=i):r=new OffscreenCanvas(t,i),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=r),a=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);const s=r.getContext("2d",{alpha:this._alpha||re()});n(s),e._drawWithFitAndMipmapping(r,s,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:a,fillBlack:!this._alpha&&re()});const o={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),o}async getCanvas(e,t){Dn(e),await this._ensureInit();const i=await this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)}async*canvases(e,t,i){await this._ensureInit(),yield*z(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e))}async*canvasesAtTimestamps(e,t){await this._ensureInit(),yield*z(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e))}}class Xn extends On{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new Z,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const a=t=>{let i=t.timestamp;null!==this.expectedFirstTimestamp&&null===this.currentTimestamp&&(this.timestampOffset=this.expectedFirstTimestamp-i),i+=this.timestampOffset,(null===this.currentTimestamp||Math.abs(i-this.currentTimestamp)>=t.duration)&&(this.currentTimestamp=i);const a=this.currentTimestamp;if(this.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();const s=r.sampleRate;t.setTimestamp(Math.round(a*s)/s),e(t)},s=Fn.find(e=>e.supports(i,r));if(s)this.customDecoder=new s,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof Pn))throw new TypeError("The argument passed to onSample must be an AudioSample.");a(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:e=>{try{a(new Pn(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(n(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--)):(n(this.decoder),this.expectedFirstTimestamp??(this.expectedFirstTimestamp=e.timestamp),this.decoder.decode(e.toEncodedAudioChunk()))}async flush(){this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(n(this.decoder),await this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(n(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class $n extends On{constructor(e,t,i){super(e,t),this.decoderConfig=i,this.currentTimestamp=null,n(Kt.includes(i.codec)),this.codec=i.codec;const{dataType:r,sampleSize:a,littleEndian:s}=si(this.codec);switch(this.inputSampleSize=a,a){case 1:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint8(t)-128:"signed"===r?this.readInputValue=(e,t)=>e.getInt8(t):"ulaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=~e;128&r&&(r&=-129,t=-1),i=5+((240&r)>>4);const a=(1<(e=>{let t=0,i=0,r=85^e;128&r&&(r&=-129,t=-1),i=4+((240&r)>>4);let a=0;return a=4!==i?1<e.getUint16(t,s)-32768:"signed"===r?this.readInputValue=(e,t)=>e.getInt16(t,s):n(!1);break;case 3:"unsigned"===r?this.readInputValue=(e,t)=>O(e,t,s)-2**23:"signed"===r?this.readInputValue=(e,t)=>((e,t,i)=>O(e,t,i)<<8>>8)(e,t,s):n(!1);break;case 4:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint32(t,s)-2**31:"signed"===r?this.readInputValue=(e,t)=>e.getInt32(t,s):"float"===r?this.readInputValue=(e,t)=>e.getFloat32(t,s):n(!1);break;case 8:"float"===r?this.readInputValue=(e,t)=>e.getFloat64(t,s):n(!1);break;default:N(a),n(!1)}switch(a){case 1:"ulaw"===r||"alaw"===r?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(e,t,i)=>e.setUint8(t,i+128));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i<<8,!0);break;case 4:this.outputSampleSize=4,"float"===r?(this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0)):(this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0);break;default:N(a),n(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=f(e.data),i=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,r=i*this.decoderConfig.numberOfChannels*this.outputSampleSize,a=new ArrayBuffer(r),s=new DataView(a);for(let l=0;l=n)&&(this.currentTimestamp=e.timestamp);const o=this.currentTimestamp;this.currentTimestamp+=n;const c=new Pn({format:this.outputFormat,data:a,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:i,timestamp:o});this.onSample(c)}async flush(){}close(){}}class Gn extends Ln{constructor(e){if(!(e instanceof to))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=e}async _createDecoder(e,t){if(!(await this._track.canDecode())){if("undefined"===typeof AudioDecoder)throw new Error(ne("AudioDecoder"));throw new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=await this._track.getCodec(),r=await this._track.getDecoderConfig();return n(i&&r),Kt.includes(r.codec)?new $n(e,t,r):new Xn(e,t,i,r)}_createPacketSink(){return new Nn(this._track)}async getSample(e,t={}){Dn(e);for await(const i of this.mediaSamplesAtTimestamps([e],t))return i;throw new Error("Internal error: Iterator returned nothing.")}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class Qn{constructor(e){if(!(e instanceof to))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new Gn(e)}_audioSampleToWrappedArrayBuffer(e){const t={buffer:e.toAudioBuffer(),timestamp:e.timestamp,duration:e.duration};return e.close(),t}async getBuffer(e,t){Dn(e);const i=await this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)}buffers(e,t,i){return z(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return z(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class Yn{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof eo}isAudioTrack(){return this instanceof to}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}async getInternalCodecId(){return this._backing.getInternalCodecId()}get internalCodecId(){return Jn(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}async getLanguageCode(){return this._backing.getLanguageCode()}get languageCode(){return Jn(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}async getName(){return this._backing.getName()}get name(){return Jn(this._backing.getName(),"name","getName")}async getTimeResolution(){return this._backing.getTimeResolution()}get timeResolution(){return Jn(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}async isRelativeToUnixEpoch(){return this._backing.isRelativeToUnixEpoch()}async getUnixTimeForTimestamp(e){return this._backing.getUnixTimeForTimestamp(e)}async hasUnixTimeMapping(){return null!==await this._backing.getUnixTimeForTimestamp(await this.getFirstTimestamp())}async getDisposition(){return this._backing.getDisposition()}get disposition(){return Jn(this._backing.getDisposition(),"disposition","getDisposition")}async getBitrate(){return this._backing.getBitrate()}async getAverageBitrate(){return this._backing.getAverageBitrate()}async getFirstTimestamp(){const e=await this._backing.getFirstPacket({metadataOnly:!0});return e?.timestamp??0}async computeDuration(e){const t=await this._backing.getPacket(1/0,{metadataOnly:!0,...e});return V((t?.timestamp??0)+(t?.duration??0),await this.getTimeResolution())}async getDurationFromMetadata(e={}){return this._backing.getDurationFromMetadata(e)}async computePacketStats(e=1/0,t){const i=new Nn(this);let r=1/0,a=-1/0,s=0,n=0;for await(const o of i.packets(void 0,void 0,{metadataOnly:!0,...t})){if(s>=e&&o.timestamp>=a)break;r=Math.min(r,o.timestamp),a=Math.max(a,o.timestamp+o.duration),s++,n+=o.byteLength}return{packetCount:s,averagePacketRate:s?Number((s/(a-r)).toPrecision(16)):0,averageBitrate:s?Number((8*n/(a-r)).toPrecision(16)):0}}async isLive(){return null!==await this._backing.getLiveRefreshInterval()}async getLiveRefreshInterval(){return this._backing.getLiveRefreshInterval()}canBePairedWith(e){if(!(e instanceof Yn))throw new TypeError("other must be an InputTrack.");return this.input===e.input&&this!==e&&0n!==(this._backing.getPairingMask()&e._backing.getPairingMask())}async getPairableTracks(e){return this.input.getTracks(so({filter:e=>e.canBePairedWith(this)},e))}async getPairableVideoTracks(e){return this.input.getVideoTracks(so({filter:e=>e.canBePairedWith(this)},e))}async getPairableAudioTracks(e){return this.input.getAudioTracks(so({filter:e=>e.canBePairedWith(this)},e))}async getPrimaryPairableVideoTrack(e){return this.input.getPrimaryVideoTrack(so({filter:e=>e.canBePairedWith(this)},e))}async getPrimaryPairableAudioTrack(e){return this.input.getPrimaryAudioTrack(so({filter:e=>e.canBePairedWith(this)},e))}async hasPairableTrack(e){e&&(e=Zn(e));const t=await this.input.getTracks();for(const i of t)if(this.canBePairedWith(i)&&(!e||await e(i)))return!0;return!1}hasPairableVideoTrack(e){return e&&(e=Zn(e)),this.hasPairableTrack(async t=>t.isVideoTrack()&&(!e||await e(t)))}hasPairableAudioTrack(e){return e&&(e=Zn(e)),this.hasPairableTrack(async t=>t.isAudioTrack()&&(!e||await e(t)))}}const Jn=(e,t,i)=>{if(ce(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},Zn=e=>{if(void 0!==e&&"function"!==typeof e)throw new TypeError("predicate, when provided, must be a function.");return e?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("predicate must return or resolve to a boolean value.");return e},r=e(t);return ce(r)?r.then(i):i(r)}:void 0};class eo extends Yn{constructor(e,t){super(e,t),this._pixelAspectRatioCache=null,this._backing=t}get type(){return"video"}async getCodec(){return this._backing.getCodec()}get codec(){return Jn(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await(this._backing.getHasOnlyKeyPackets?.())??"prores"===await this._backing.getCodec()}async getCodedWidth(){return this._backing.getCodedWidth()}get codedWidth(){return Jn(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}async getCodedHeight(){return this._backing.getCodedHeight()}get codedHeight(){return Jn(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}async getRotation(){return this._backing.getRotation()}get rotation(){return Jn(this._backing.getRotation(),"rotation","getRotation")}async getSquarePixelWidth(){return this._backing.getSquarePixelWidth()}get squarePixelWidth(){return Jn(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}async getSquarePixelHeight(){return this._backing.getSquarePixelHeight()}get squarePixelHeight(){return Jn(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}async getPixelAspectRatio(){return this._pixelAspectRatioCache??(this._pixelAspectRatioCache=ke({num:await this.getSquarePixelWidth()*await this.getCodedHeight(),den:await this.getSquarePixelHeight()*await this.getCodedWidth()}))}get pixelAspectRatio(){return this._pixelAspectRatioCache??(this._pixelAspectRatioCache=ke({num:Jn(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*Jn(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:Jn(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*Jn(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")}))}async getDisplayWidth(){const e=await(this._backing.getMetadataDisplayWidth?.());if(null!=e)return e;return await this.getRotation()%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight()}get displayWidth(){const e=this._backing.getMetadataDisplayWidth?.();if(void 0!==e){const t=Jn(e,"displayWidth","getDisplayWidth");if(null!==t)return t}const t=Jn(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return Jn(t,"displayWidth","getDisplayWidth")}async getDisplayHeight(){const e=await(this._backing.getMetadataDisplayHeight?.());if(null!=e)return e;return await this.getRotation()%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth()}get displayHeight(){const e=this._backing.getMetadataDisplayHeight?.();if(void 0!==e){const t=Jn(e,"displayHeight","getDisplayHeight");if(null!==t)return t}const t=Jn(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return Jn(t,"displayHeight","getDisplayHeight")}async getColorSpace(){return this._backing.getColorSpace()}async hasHighDynamicRange(){const e=await this._backing.getColorSpace();return"bt2020"===e.primaries||"smpte432"===e.primaries||"pq"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix}async canBeTransparent(){return this._backing.canBeTransparent()}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const e=await(this._backing.getMetadataCodecParameterString?.());if(null!=e)return e;const t=await this._backing.getDecoderConfig();return t?.codec??null}async canDecode(){try{const e=await this._backing.getDecoderConfig();if(!e)return!1;const t=await this._backing.getCodec();if(n(null!==t),Rn.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(await VideoDecoder.isConfigSupported(e)).supported}catch(e){return ve._error("Error during decodability check:",e),!1}}async determinePacketType(e){if(!(e instanceof bi))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const t=await this.getCodec();if(null===t)return null;const i=await this.getDecoderConfig();return n(i),Tt(t,i,e.data)}async computeFrameRateMetrics(e={}){if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.targetPacketCount&&(!fe(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");const t=await this.getTimeResolution(),i=e.targetPacketCount??256,r=new Nn(this),a=[];let s=-1/0,n=0;for await(const I of r.packets(void 0,void 0,{metadataOnly:!0})){if(a.length>=i&&I.timestamp>=s)break;a.push(I.timestamp),s=Math.max(s,I.timestamp),n++}const o=new Float64Array(a.length);for(let I=0;Ie-t),b=k-1>>1,w=k>>1;let T=0,S=0,v=0;for(const I of y)if(v+=f.get(I),0===T&&v>b&&(T=I),v>w){S=I;break}const P=(d/T+d/S)/2;return{underlyingFrameRate:u,bestGuessFrameRate:null!==u?u:lo(P),minFrameRate:d/p,maxFrameRate:d/m,averageFrameRate:d*k/g,medianFrameRate:P,frameRateIsConstant:null!==u&&1===m&&1===p,probedPacketCount:n}}}class to extends Yn{constructor(e,t){super(e,t),this._backing=t}get type(){return"audio"}async getCodec(){return this._backing.getCodec()}get codec(){return Jn(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await(this._backing.getHasOnlyKeyPackets?.())??!0}async getNumberOfChannels(){return this._backing.getNumberOfChannels()}get numberOfChannels(){return Jn(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}async getSampleRate(){return this._backing.getSampleRate()}get sampleRate(){return Jn(this._backing.getSampleRate(),"sampleRate","getSampleRate")}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){const e=await(this._backing.getMetadataCodecParameterString?.());if(null!=e)return e;const t=await this._backing.getDecoderConfig();return t?.codec??null}async canDecode(){try{const e=await this._backing.getDecoderConfig();if(!e)return!1;const t=await this._backing.getCodec();if(n(null!==t),Fn.some(i=>i.supports(t,e)))return!0;if(e.codec.startsWith("pcm-"))return!0;if("undefined"===typeof AudioDecoder)return!1;return!0===(await AudioDecoder.isConfigSupported(e)).supported}catch(e){return ve._error("Error during decodability check:",e),!1}}async determinePacketType(e){if(!(e instanceof bi))throw new TypeError("packet must be an EncodedPacket.");return null===await this.getCodec()?null:"key"}}const io=e=>-(e??-1/0),ro=e=>-e,ao=e=>{if("object"!==typeof e||!e)throw new TypeError("query must be an object.");if(void 0!==e.filter&&"function"!==typeof e.filter)throw new TypeError("query.filter, when provided, must be a function.");if(void 0!==e.sortBy&&"function"!==typeof e.sortBy)throw new TypeError("query.sortBy, when provided, must be a function.");return{filter:e.filter?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("query.filter must return or resolve to a boolean.");return e},r=e.filter(t);return ce(r)?r.then(i):i(r)}:void 0,sortBy:e.sortBy?t=>{const i=e=>{if("number"!==typeof e&&(!Array.isArray(e)||!e.every(e=>"number"===typeof e)))throw new TypeError("query.sortBy must return or resolve to a number or an array of numbers.");return e},r=e.sortBy(t);return ce(r)?r.then(i):i(r)}:void 0}},so=(e,t)=>({filter:e?.filter||t?.filter?i=>{const r=e?.filter?.(i)??!0,a=e=>!1!==e&&(t?.filter?.(i)??!0);return ce(r)?r.then(a):a(r)}:void 0,sortBy:e?.sortBy||t?.sortBy?i=>{const r=e?.sortBy?.(i)??[],a=t?.sortBy?.(i)??[],s=(e,t)=>[...Array.isArray(e)?e:[e],...Array.isArray(t)?t:[t]];return ce(r)||ce(a)?Promise.all([r,a]).then(([e,t])=>s(e,t)):s(r,a)}:void 0}),no=async(e,t)=>{let i=e;if(t?.filter){const r=e.map(e=>t.filter(e));if(r.some(e=>ce(e))){const t=await Promise.all(r);i=e.filter((e,i)=>t[i])}else i=e.filter((e,t)=>r[t])}if(!t?.sortBy)return i;const r=i.map(e=>t.sortBy(e)),a=r.some(e=>ce(e))?await Promise.all(r):r;return i.map((e,t)=>({track:e,sortValue:a[t]})).sort((e,t)=>{const i=Array.isArray(e.sortValue)?e.sortValue:[e.sortValue],r=Array.isArray(t.sortValue)?t.sortValue:[t.sortValue],a=Math.max(i.length,r.length);for(let s=0;se.track)},oo=(e,t)=>{const i=1e6,r=1+1e-9,a=[12,15,20,24e3/1001,24,25,3e4/1001,30,48,50,6e4/1001,60,100,12e4/1001,120,144,240];if(e.length<2)return null;const s=new Float64Array(e.length-1);for(let T=1;T0))return null;s[T-1]=t}const n=s.slice();n.sort();let o=n[Math.floor(.05*n.length)];for(let T=0;T<6;T++){let e=0,t=0;for(const a of s){const i=Math.max(1,Math.round(a/o));Math.abs(a-i*o)>=r||(e+=a,t+=i)}if(0===t)return null;const i=e/t;if(Math.abs(i-o)<=1e-12*Math.max(1,o)){o=i;break}o=i}let c=0,l=0,u=0;for(const T of s){const e=Math.max(1,Math.round(T/o));Math.abs(T-e*o)>=r||(c++,l+=T,u+=e)}if(c/s.length<.98)return null;o=l/u;const d=1/Math.min(u,1e3),h=Math.max(Number.EPSILON,o-d),f=o+d,m=t/f,p=t/h,g=t/o;let k=null,y=1/0;for(const T of a){if(Tp)continue;const e=Math.abs(T/g-1);e{for(let r=1;r<=i;r++){const i=Math.floor(e*r)+1;if(i/r{const t=[24/1.001,30/1.001,60/1.001,120/1.001],i=[12,15,20,24,25,30,48,50,60,100,120,144,240];for(const s of t)if(Math.abs(s/e-1)<=5e-4)return s;let r=e,a=1/0;for(const s of i){const t=Math.abs(s/e-1);t<=.025&&t!(e instanceof xs)))throw new TypeError("options.formats must be an array of InputFormat.");if(!(e.source instanceof Ja||e.source instanceof Za))throw new TypeError("options.source must be a Source or SourceRef.");if(e.source instanceof Ja&&e.source._disposed)throw new TypeError("options.source must not be a disposed Source.");if(void 0!==e.initInput&&!(e.initInput instanceof ho))throw new TypeError("options.initInput, when provided, must be an Input.");void 0!==e.formatOptions&&((e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(`${t}, when provided, must be an object.`);if(void 0!==e.isobmff){if(!e.isobmff||"object"!==typeof e.isobmff)throw new TypeError(`${t}.isobmff, when provided, must be an object.`);if(void 0!==e.isobmff.resolveKeyId&&"function"!==typeof e.isobmff.resolveKeyId)throw new TypeError(`${t}.isobmff.resolveKeyId, when provided, must be a function.`)}if(void 0!==e.hls){if(!e.hls||"object"!==typeof e.hls)throw new TypeError(`${t}.hls, when provided, must be an object.`);if(void 0!==e.hls.offsetTimestampsByDateTime&&"boolean"!==typeof e.hls.offsetTimestampsByDateTime)throw new TypeError(`${t}.hls.offsetTimestampsByDateTime, when provided, must be a boolean.`)}})(e.formatOptions,"formatOptions"),this._formats=e.formats,this._initInput=e.initInput??null,this._formatOptions=e.formatOptions??{},e.source instanceof Ja?this._rootRef=e.source.ref():this._rootRef=e.source,this._sourceRefs.push(this._rootRef)}get _rootSource(){return this._rootRef.source}async _getSourceUncached(e){n(this._rootSource instanceof es);const t=await this._rootSource._resolveRequest(e);return this._emit("source",{source:t.source,request:e,isRoot:e.isRoot}),t}_getSourceCached(e,t=1){const i=this._sourceCache.find(i=>i.cacheGroup===t&&ts(i.request,e));if(i)return i.age++,Promise.resolve(i.sourceRef.source.ref());const r=this._sourceCachePromises.find(i=>i.cacheGroup===t&&ts(i.request,e));if(r)return r.promise.then(e=>e.sourceRef.source.ref());const a=(async()=>{const i=await this._getSourceUncached(e);if(pe(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount)>=4){const e=ge(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount?e.age:1/0);n(-1!==e);const i=this._sourceCache[e];this._sourceCache.splice(e,1),i.sourceRef.free(),A(this._sourceRefs,i.sourceRef)}this._sourceRefs.push(i);const r=this._sourceCachePromises.findIndex(t=>t.request===e);n(-1!==r),this._sourceCachePromises.splice(r,1);return{request:e,sourceRef:i,age:this._nextSourceCacheAge++,cacheGroup:t}})();return this._sourceCachePromises.push({request:e,cacheGroup:t,promise:a}),a.then(e=>{const t=e.sourceRef.source.ref();return this._sourceCache.push(e),t})}_getDemuxer(){return this._demuxerPromise??(this._demuxerPromise=(async()=>{this._reader=new po(this._rootSource),this._emit("source",{source:this._rootSource,request:null,isRoot:!0});for(const e of this._formats){if(await e._canReadInput(this))return this._format=e,this._onFormatDetermined?.(e),e._createDemuxer(this)}throw new fo})())}get source(){return this._rootSource}async getFormat(){return await this._getDemuxer(),n(this._format),this._format}async canRead(){try{return await this._getDemuxer(),!0}catch(e){if(e instanceof fo)return!1;throw e}}async getFirstTimestamp(e){e??(e=await this.getTracks());const t=e.filter(e=>null!==e);if(0===t.length)return 0;const i=await Promise.all(t.map(e=>e._backing.getFirstPacket({metadataOnly:!0}))),r=Math.min(...i.map(e=>e?.timestamp??1/0));return r===1/0?0:r}async computeDuration(e,t){e??(e=await this.getTracks());const i=e.filter(e=>null!==e);if(0===i.length)return 0;const r=await Promise.all(i.map(e=>e.computeDuration(t)));return Math.max(...r)}async getDurationFromMetadata(e,t){e??(e=await this.getTracks());const i=e.filter(e=>null!==e),r=(await Promise.all(i.map(e=>e.getDurationFromMetadata(t)))).filter(e=>null!==e);return 0===r.length?null:Math.max(...r)}async getTracks(e){e&&(e=ao(e));const t=(await this._getTrackBackings()).map(e=>this._wrapBackingAsTrack(e));return no(t,e)}async getVideoTracks(e){e&&(e=ao(e));const t=(await this.getTracks()).filter(e=>e.isVideoTrack());return no(t,e)}async getAudioTracks(e){e&&(e=ao(e));const t=(await this.getTracks()).filter(e=>e.isAudioTrack());return no(t,e)}async getPrimaryVideoTrack(e){e&&(e=ao(e));const t=so(e,{sortBy:async e=>[ro((await e.getDisposition()).default),ro(await e.hasPairableAudioTrack()),ro(!(await e.hasOnlyKeyPackets())),io(await e.getBitrate())]});return(await this.getVideoTracks(t))[0]??null}async getPrimaryAudioTrack(e){e&&(e=ao(e));const t=await this.getPrimaryVideoTrack(),i=so(e,{sortBy:async e=>[ro(!t||e.canBePairedWith(t)),ro((await e.getDisposition()).default),io(await e.getBitrate())]});return(await this.getAudioTracks(i))[0]??null}async _getTrackBackings(){const e=await this._getDemuxer();return this._trackBackingsCache??(this._trackBackingsCache=await e.getTrackBackings())}_wrapBackingAsTrack(e){const t=this._backingToTrack.get(e);if(t)return t;const i="video"===e.getType()?new eo(this,e):new to(this,e);return this._backingToTrack.set(e,i),i}async getMimeType(){return(await this._getDemuxer()).getMimeType()}async getMetadataTags(){return(await this._getDemuxer()).getMetadataTags()}dispose(){if(!this._disposed){this._disposed=!0;for(const e of this._sourceRefs)e.free();this._sourceRefs.length=0,this._demuxerPromise&&this._demuxerPromise.then(e=>e.dispose()).catch(()=>{})}}[Symbol.dispose](){this.dispose()}}class fo extends Error{constructor(e="Input has an unsupported or unrecognizable format."){super(e),this.name="UnsupportedInputFormatError"}}class mo extends Error{constructor(e="Input has been disposed."){super(e),this.name="InputDisposedError"}}class po{constructor(e){this.source=e}get fileSize(){const e=this.source._getFileSize();if(void 0===e)throw new Error("Reading file size too early; read required first.");return e}get fileSizeNonStrict(){return this.source._getFileSize()??null}requestSlice(e,t){if(this.source._disposed)throw new mo;if(e<0)return null;if(null!==this.fileSizeNonStrict&&e+t>this.fileSizeNonStrict)return null;if(0===t){const t=new Uint8Array(0);return new go(t,f(t),0,e,e)}const i=e+t,r=this.source._read(e,i,0,Ya);return ce(r)?r.then(t=>t?new go(t.bytes,t.view,t.offset,e,i):null):r?new go(r.bytes,r.view,r.offset,e,i):null}requestSliceRange(e,t,i){if(this.source._disposed)throw new mo;if(e<0)return null;if(null!==this.fileSizeNonStrict)return this.requestSlice(e,U(this.fileSizeNonStrict-e,t,i));{const r=this.requestSlice(e,i),a=r=>r||(n(null!==this.fileSizeNonStrict),this.requestSlice(e,U(this.fileSizeNonStrict-e,t,i)));return ce(r)?r.then(a):a(r)}}requestEntireFile(){if(null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);return(async()=>{const e=[];let t=0;for(;;){if(1===e.length&&null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);let i=this.requestSliceRange(t,0,1024);if(ce(i)&&(i=await i),!i||0===i.length)break;const r=yo(i,i.length);e.push(r),t+=i.length}const i=new Uint8Array(t);let r=0;for(const a of e)i.set(a,r),r+=a.length;return new go(i,f(i),0,0,t)})()}}class go{constructor(e,t,i,r,a){this.bytes=e,this.view=t,this.offset=i,this.start=r,this.end=a,this.bufferPos=r-i}static tempFromBytes(e){return new go(e,f(e),0,0,e.length)}get length(){return this.end-this.start}get filePos(){return this.offset+this.bufferPos}set filePos(e){this.bufferPos=e-this.offset}get remainingLength(){return Math.max(this.end-this.filePos,0)}skip(e){this.bufferPos+=e}slice(e,t=this.end-e){if(ethis.end)throw new RangeError("Slicing outside of original slice.");return new go(this.bytes,this.view,this.offset,e,e+t)}}const ko=(e,t)=>{if(e.filePose.end)throw new RangeError(`Tried reading [${e.filePos}, ${e.filePos+t}), but slice is [${e.start}, ${e.end}). This is likely an internal error, please report it alongside the file that caused it.`)},yo=(e,t)=>{ko(e,t);const i=e.bytes.subarray(e.bufferPos,e.bufferPos+t);return e.bufferPos+=t,i},bo=e=>(ko(e,1),e.view.getUint8(e.bufferPos++)),wo=(e,t)=>{ko(e,2);const i=e.view.getUint16(e.bufferPos,t);return e.bufferPos+=2,i},To=e=>{ko(e,2);const t=e.view.getUint16(e.bufferPos,!1);return e.bufferPos+=2,t},So=e=>{ko(e,3);const t=O(e.view,e.bufferPos,!1);return e.bufferPos+=3,t},vo=e=>{ko(e,2);const t=e.view.getInt16(e.bufferPos,!1);return e.bufferPos+=2,t},Po=(e,t)=>{ko(e,4);const i=e.view.getUint32(e.bufferPos,t);return e.bufferPos+=4,i},Io=e=>{ko(e,4);const t=e.view.getUint32(e.bufferPos,!1);return e.bufferPos+=4,t},xo=e=>{ko(e,4);const t=e.view.getUint32(e.bufferPos,!0);return e.bufferPos+=4,t},Co=e=>{ko(e,4);const t=e.view.getInt32(e.bufferPos,!1);return e.bufferPos+=4,t},Bo=(e,t)=>{let i,r;return t?(i=Po(e,!0),r=Po(e,!0)):(r=Po(e,!1),i=Po(e,!1)),4294967296*r+i},Eo=e=>4294967296*Io(e)+Io(e),_o=e=>4294967296*Co(e)+Io(e),Ro=e=>{const t=xo(e),i=(e=>{ko(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},Fo=e=>{ko(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},Ao=e=>{ko(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},Do=(e,t)=>{ko(e,t);let i="";for(let r=0;rm.decode(yo(e,t)).split("\n").map(e=>e.trim()).filter(e=>e.length>0&&!i?.ignore?.(e));var No,Oo,Lo,zo;(Oo=No||(No={}))[Oo.Unsynchronisation=128]="Unsynchronisation",Oo[Oo.ExtendedHeader=64]="ExtendedHeader",Oo[Oo.ExperimentalIndicator=32]="ExperimentalIndicator",Oo[Oo.Footer=16]="Footer",(zo=Lo||(Lo={}))[zo.ISO_8859_1=0]="ISO_8859_1",zo[zo.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",zo[zo.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",zo[zo.UTF_8=3]="UTF_8";const Uo=128,qo=10,Wo=["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"],Ho=(e,t)=>{var i;const r=e.filePos;t.raw??(t.raw={}),(i=t.raw).TAG??(i.TAG=yo(e,Uo-3)),e.filePos=r;const a=Vo(e,30);a&&(t.title??(t.title=a));const s=Vo(e,30);s&&(t.artist??(t.artist=s));const n=Vo(e,30);n&&(t.album??(t.album=n));const o=Vo(e,4),c=Number.parseInt(o,10);Number.isInteger(c)&&c>0&&(t.date??(t.date=new Date(String(c))));const l=yo(e,30);let u;if(0===l[28]&&0!==l[29]){const i=l[29];i>0&&(t.trackNumber??(t.trackNumber=i)),e.skip(-30),u=Vo(e,28),e.skip(2)}else e.skip(-30),u=Vo(e,30);u&&(t.comment??(t.comment=u));const d=bo(e);d{const i=yo(e,t),r=le(i.indexOf(0),i.length),a=i.subarray(0,r);let s="";for(let n=0;n{const t=e.filePos,i=Do(e,3),r=bo(e),a=bo(e),s=bo(e),n=Io(e);if("ID3"!==i||255===r||255===a||0!==(2155905152&n))return e.filePos=t,null;let o=fi(n);return s&No.Footer&&(o+=qo),{majorVersion:r,revision:a,flags:s,size:o}},Ko=(e,t,i)=>{var r,a,s,n,o;if(![2,3,4].includes(t.majorVersion))return void ve._warn(`Unsupported ID3v2 major version: ${t.majorVersion}`);const c=t.flags&No.Footer?t.size-qo:t.size,l=yo(e,c),u=new Xo(t,l);if(t.flags&No.Unsynchronisation&&3===t.majorVersion&&u.ununsynchronizeAll(),t.flags&No.ExtendedHeader){const e=u.readU32();3===t.majorVersion?u.pos+=e:u.pos+=e-4}for(;u.pos<=u.bytes.length-u.frameHeaderSize();){const e=u.readId3V2Frame();if(!e)break;const c=u.pos,l=u.pos+e.size;let d=!1,h=!1,f=!1;if(3===t.majorVersion?(d=!!(64&e.flags),h=!!(128&e.flags)):4===t.majorVersion&&(d=!!(4&e.flags),h=!!(8&e.flags),f=!!(2&e.flags)||!!(t.flags&No.Unsynchronisation)),d)ve._warn(`Skipping encrypted ID3v2 frame ${e.id}`),u.pos=l;else if(h)ve._warn(`Skipping compressed ID3v2 frame ${e.id}`),u.pos=l;else{if(f&&u.ununsynchronizeRegion(u.pos,l),i.raw??(i.raw={}),"TXXX"===e.id){const e=(r=i.raw).TXXX??(r.TXXX={}),t=u.readId3V2TextEncoding(),a=u.readId3V2Text(t,l),s=u.readId3V2Text(t,l);e[a]??(e[a]=s)}else"T"===e.id[0]?(a=i.raw)[s=e.id]??(a[s]=u.readId3V2EncodingAndText(l)):(n=i.raw)[o=e.id]??(n[o]=u.readBytes(e.size));switch(u.pos=c,e.id){case"TIT2":case"TT2":i.title??(i.title=u.readId3V2EncodingAndText(l));break;case"TIT3":case"TT3":i.description??(i.description=u.readId3V2EncodingAndText(l));break;case"TPE1":case"TP1":i.artist??(i.artist=u.readId3V2EncodingAndText(l));break;case"TALB":case"TAL":i.album??(i.album=u.readId3V2EncodingAndText(l));break;case"TPE2":case"TP2":i.albumArtist??(i.albumArtist=u.readId3V2EncodingAndText(l));break;case"TRCK":case"TRK":{const e=u.readId3V2EncodingAndText(l).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(i.trackNumber??(i.trackNumber=t)),r&&Number.isInteger(r)&&r>0&&(i.tracksTotal??(i.tracksTotal=r))}break;case"TPOS":case"TPA":{const e=u.readId3V2EncodingAndText(l).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(i.discNumber??(i.discNumber=t)),r&&Number.isInteger(r)&&r>0&&(i.discsTotal??(i.discsTotal=r))}break;case"TCON":case"TCO":{const e=u.readId3V2EncodingAndText(l);let t=/^\((\d+)\)/.exec(e);if(t){const e=Number.parseInt(t[1]);if(void 0!==Wo[e]){i.genre??(i.genre=Wo[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==Wo[e]){i.genre??(i.genre=Wo[e]);break}}i.genre??(i.genre=e)}break;case"TDRC":case"TDAT":{const e=u.readId3V2EncodingAndText(l),t=new Date(e);Number.isNaN(t.getTime())||(i.date??(i.date=t))}break;case"TYER":case"TYE":{const e=u.readId3V2EncodingAndText(l),t=Number.parseInt(e,10);Number.isInteger(t)&&(i.date??(i.date=new Date(String(t))))}break;case"USLT":case"ULT":{const e=u.readU8();u.pos+=3,u.readId3V2Text(e,l),i.lyrics??(i.lyrics=u.readId3V2Text(e,l))}break;case"COMM":case"COM":{const e=u.readU8();u.pos+=3,u.readId3V2Text(e,l),i.comment??(i.comment=u.readId3V2Text(e,l))}break;case"APIC":case"PIC":{const e=u.readId3V2TextEncoding();let r;if(2===t.majorVersion){const e=u.readAscii(3);r="PNG"===e?"image/png":"JPG"===e?"image/jpeg":"image/*"}else r=u.readId3V2Text(e,l);const a=u.readU8(),s=u.readId3V2Text(e,l).trimEnd(),n=l-u.pos;if(n>=0){const e=u.readBytes(n);i.images||(i.images=[]),i.images.push({data:e,mimeType:r,kind:3===a?"coverFront":4===a?"coverBack":"unknown",description:s})}}break;default:u.pos+=e.size}u.pos=l}}};class Xo{constructor(e,t){this.header=e,this.bytes=t,this.pos=0,this.view=new DataView(t.buffer,t.byteOffset,t.byteLength)}frameHeaderSize(){return 2===this.header.majorVersion?6:10}ununsynchronizeAll(){const e=[];for(let t=0;t{const t=this.pos+e;if(t>this.bytes.length)return!1;if(t<=this.bytes.length-this.frameHeaderSize()){this.pos+=e;const t=this.readAscii(4);if("\0\0\0\0"!==t&&!/[0-9A-Z]{4}/.test(t))return!1}return!0};if(!s(i)){const e=4===this.header.majorVersion?t:fi(t);s(e)&&(i=e)}return this.pos=a,{id:e,size:i,flags:r}}}readId3V2TextEncoding(){const e=this.readU8();if(e>3)throw new Error(`Unsupported text encoding: ${e}`);return e}readId3V2Text(e,t){const i=this.pos,r=this.readBytes(t-this.pos);switch(e){case Lo.ISO_8859_1:{let e="";for(let t=0;t0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}if(254===r[0]&&255===r[1]){const e=new TextDecoder("utf-16be"),t=le(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}{const e=le(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),m.decode(r.subarray(0,e))}case Lo.UTF_16_BE_NO_BOM:{const e=new TextDecoder("utf-16be"),t=le(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(0,t))}case Lo.UTF_8:{const e=le(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),m.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class $o{constructor(e){this.events=e,this.input=null,this.audioSink=null,this.audioIterator=null,this.audioContext=null,this.gainNode=null,this.audioContextStartTime=0,this.playbackTimeAtStart=0,this.latestScheduledEndTime=0,this.duration=Number.NaN,this.paused=!0,this.volume=.7,this.muted=!1,this.playbackRate=1,this.asyncId=0,this.queuedNodes=new Set}get currentTime(){return this.paused?this.playbackTimeAtStart:(this.audioContext.currentTime-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart}ensureAudioContext(e){if(this.audioContext)return;const t=window.AudioContext||window.webkitAudioContext;try{this.audioContext=new t({sampleRate:e})}catch{this.audioContext=new t}this.gainNode=this.audioContext.createGain(),this.gainNode.connect(this.audioContext.destination),this.updateGain()}updateGain(){if(!this.gainNode)return;const e=this.muted?0:this.volume;this.gainNode.gain.value=e*e}stopQueuedNodes(){this.queuedNodes.forEach(e=>e.stop()),this.queuedNodes.clear()}async stopIterator(){await(this.audioIterator?.return()),this.audioIterator=null}handleNoAudioTrack(){this.audioSink=null,this.ensureAudioContext()}async load(e,t){++this.asyncId,await this.stopIterator(),this.stopQueuedNodes(),this.paused=!0,this.playbackTimeAtStart=0,this.audioContextStartTime=0;const{input:i,audioTrack:r,duration:a}=e;return this.input=i,this.duration=a,r?null!==r.codec&&await r.canDecode()?(this.ensureAudioContext(r.sampleRate),this.audioSink=new Qn(r),void t?.()):(this.audioSink=null,this.ensureAudioContext(),void t?.()):(this.handleNoAudioTrack(),void t?.())}async runIterator(e){if(!this.audioSink)return;await this.stopIterator(),this.audioIterator=this.audioSink.buffers(this.currentTime);for(;;){if(e!==this.asyncId||this.paused)return;const i=[];let r=!1;try{for(let e=0;e<16;e++){const e=await this.audioIterator.next();if(e.done){r=!0;break}i.push(e.value)}}catch(t){console.error("Audio iterator error:",t),r=!0}if(e!==this.asyncId||this.paused)return;i.length>0&&"suspended"===this.audioContext.state&&(await this.audioContext.resume(),this.events.emit("canplay"),this.events.emit("playing"));for(const{buffer:e,timestamp:t}of i){const i=this.audioContext.createBufferSource();i.buffer=e,i.connect(this.gainNode),i.playbackRate.value=this.playbackRate;const r=this.audioContextStartTime+(t-this.playbackTimeAtStart)/this.playbackRate,a=(r+e.duration/this.playbackRate-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart;a>this.latestScheduledEndTime&&(this.latestScheduledEndTime=a),r>=this.audioContext.currentTime?i.start(r):i.start(this.audioContext.currentTime,(this.audioContext.currentTime-r)*this.playbackRate),this.queuedNodes.add(i),i.onended=()=>this.queuedNodes.delete(i)}if(r)break;await new Promise(e=>setTimeout(e,0));const a=1;for(;this.latestScheduledEndTime-this.currentTime>a;){if(e!==this.asyncId||this.paused)return;await new Promise(e=>setTimeout(e,50))}}}async play(){if(!this.paused)return;this.audioContext||this.ensureAudioContext(),"suspended"===this.audioContext.state&&await this.audioContext.resume(),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart,this.paused=!1;const e=++this.asyncId;this.runIterator(e)}pause(){this.paused||(this.playbackTimeAtStart=this.currentTime,this.paused=!0,this.stopIterator(),this.stopQueuedNodes())}async seek(e){this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart;const t=++this.asyncId;this.paused||this.runIterator(t)}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){if(e!==this.playbackRate&&(this.paused||(this.playbackTimeAtStart=this.currentTime,this.audioContextStartTime=this.audioContext.currentTime),this.playbackRate=e,!this.paused)){const e=++this.asyncId;this.runIterator(e)}}destroy(){this.asyncId++,this.pause(),this.audioContext?.close(),this.audioContext=null,this.input=null,this.audioSink=null}}async function Go(e){return await e.getAverageBitrate()??await e.getBitrate()??0}const Qo=/\.m3u8(?:$|[?#])/i;function Yo(e){return"string"===typeof e&&Qo.test(e)}function Jo(e){const t=function(e){return"string"===typeof e?new os(e):e instanceof Blob?new as(e):"undefined"!==typeof ReadableStream&&e instanceof ReadableStream?new us(e):e??null}(e);return t?new ho({source:t,formats:Yo(e)?Ys:Qs}):null}class Zo{constructor(){this.active=!0,this.input=null,this.timers=new Set,this.controller="undefined"===typeof AbortController?void 0:new AbortController,this.cancellation=new Promise(e=>{this.resolveCancellation=e})}get signal(){return this.controller?.signal}own(e){this.active?this.input=e:e.dispose()}defer(e){if(!this.active)return;const t=setTimeout(()=>{this.timers.delete(t),this.active&&e()},0);this.timers.add(t)}async wait(e,t){try{await Promise.race([e,this.cancellation,t>0?this.timeout(t):new Promise(()=>{})])}finally{void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0)}}timeout(e){return new Promise((t,i)=>{this.deadline=setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){const e=this.input;this.input=null,e?.dispose()}cancel(){if(this.active){this.active=!1;for(const e of this.timers)clearTimeout(e);this.timers.clear(),void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0),this.resolveCancellation(),this.controller?.abort(),this.disposeInput()}}}async function ec({input:e,videoTrack:t,audioTrack:i}){const r=[t,i].filter(e=>null!==e),a=t||i,s=Boolean(a&&await a.isLive());let n=Number.NaN;return r.length>0&&(n=await e.getDurationFromMetadata(r,{skipLiveWait:!0}),null!==n||s||(n=await e.computeDuration(r,{skipLiveWait:!0}))),s?Number.POSITIVE_INFINITY:n??Number.NaN}class tc{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:a=.12,dropLateFrames:s=!1,poster:n="",preflightRange:o=!1}){this.canvas=e,this.ctx=t,this.events=i,this.timeupdateInterval=r,this.avSyncTolerance=a,this.dropLateFrames=s,this.poster=n,this.preflightRange=o,this.input=null,this.videoSink=null,this.videoIterator=null,this.nextFrame=null,this.rafId=0,this.asyncId=0,this.width=0,this.height=0,this.duration=Number.NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1}async preflight(e,t,i){return async function(e,t,i,r,a=()=>!0){if(r?.aborted||!a())return!1;if(!t||"string"!==typeof e||Yo(e))return!0;try{const t=await fetch(e,r?{method:"HEAD",signal:r}:{method:"HEAD"});if(r?.aborted||!a())return!1;const s=t.headers.get("accept-ranges");return!(!s||"none"===s)||(i.emit("error",new Event("RangeNotSupported")),!1)}catch(s){return!(r?.aborted||!a())&&(console.warn("Preflight check failed:",s),!0)}}(e,this.preflightRange,this.events,t,i)}drawPoster(){if(!this.poster||this.posterDrawn)return;const e=new Image;e.onload=()=>{this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,this.ctx.drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e.src=this.poster}async stopIterator(){await(this.videoIterator?.return()),this.videoIterator=null}clear(){this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height)}async load(e,t){++this.asyncId,await this.stopIterator(),this.clear(),this.posterDrawn=!1;const{input:i,videoTrack:r,duration:a}=e;if(this.input=i,this.duration=a,!r)return this.handleNoVideoTrack(),void t?.();if(null===r.codec||!(await r.canDecode()))return this.handleNoVideoTrack(),void t?.();const s=await r.canBeTransparent();this.videoSink=new Kn(r,{poolSize:2,fit:"contain",alpha:s}),this.width=r.displayWidth,this.height=r.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,t?.(),await this.resetIterator(0)}handleNoVideoTrack(){this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster()}async resetIterator(e){if(await this.stopIterator(),!this.videoSink)return;this.videoIterator=this.videoSink.canvases(e);const t=(await this.videoIterator.next()).value??null,i=(await this.videoIterator.next()).value??null;this.nextFrame=i,t?this.ctx.drawImage(t.canvas,0,0):this.drawPoster()}async updateNextFrame(e){if(this.videoIterator&&!this.isFetching){this.isFetching=!0;try{for(;;){const t=(await this.videoIterator.next()).value??null;if(!t||e!==this.asyncId)return;const i=this.audioClock.currentTime,r=this.dropLateFrames?Math.max(.06,this.avSyncTolerance/Math.max(1,this.playbackRate)):0;if(!(this.dropLateFrames&&t.timestampi)return void(this.nextFrame=null)}}}finally{this.isFetching=!1}}}render(){if(!this.audioClock)return;const e=this.audioClock.currentTime,t=Date.now();if(t-this.lastTimeUpdate>=this.timeupdateInterval&&(this.events.emit("timeupdate"),this.lastTimeUpdate=t),Number.isFinite(this.duration)&&e>=this.duration)return this.stop(),this.stalled=!1,this.events.emit("ended"),this.events.emit("pause"),void this.events.emit("canplay");this.nextFrame&&this.nextFrame.timestamp<=e?(this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.ctx.drawImage(this.nextFrame.canvas,0,0),this.nextFrame=null,this.updateNextFrame(this.asyncId),this.stalled&&(this.events.emit("canplay"),this.events.emit("playing"),this.stalled=!1)):this.nextFrame||(this.updateNextFrame(this.asyncId),!this.nextFrame&&Number.isFinite(this.duration)&&ethis.render())}start(e){this.audioClock=e,this.asyncId++,this.stalled=!1,this.updateNextFrame(this.asyncId),this.rafId=requestAnimationFrame(()=>this.render())}stop(){cancelAnimationFrame(this.rafId)}async seek(e){this.asyncId++,await this.resetIterator(e)}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){this.asyncId++,this.stop(),this.stopIterator(),this.posterDrawn=!1,this.videoSink=null,this.input=null}}class ic{constructor({canvas:e,ctx:t,events:i,option:r={}}){this.events=i,this.option=r,this.audio=new $o(i),this.video=new tc({canvas:e,ctx:t,events:i,timeupdateInterval:r.timeupdateInterval??250,avSyncTolerance:r.avSyncTolerance??.12,dropLateFrames:r.dropLateFrames??!1,poster:r.poster??"",preflightRange:r.preflightRange??!1}),this.paused=!0,this.ended=!1,this.readyState=0,this.networkState=0,this.error=null,this.seeking=!1,this.loadSeq=0,this.input=null,this.media=null,this.loadSession=null,this.destroyed=!1,i.addEventListener?.("ended",()=>{this.ended=!0,this.paused=!0})}async load(e){if(this.destroyed)return;const t=++this.loadSeq;if(this.loadSession?.cancel(),t!==this.loadSeq||this.destroyed)return;if(this.pause(),t!==this.loadSeq||this.destroyed)return;this.disposeInput();const i=new Zo;this.loadSession=i,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,i.defer(()=>this.events.emit("waiting")),i.defer(()=>this.events.emit("loadstart"));const r=Number.isFinite(this.option.loadTimeout)?this.option.loadTimeout:0;try{await i.wait(this.performLoad(e,t,i),r)}catch(a){if(t!==this.loadSeq)return;const e=++this.loadSeq;if(i.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.error={code:4,message:a.message},this.networkState=3,this.events.emit("error")}}async performLoad(e,t,i=this.loadSession){if(!(await this.video.preflight(e,i?.signal,()=>t===this.loadSeq))||t!==this.loadSeq)return;const r=Jo(e);if(!r)return this.video.handleNoVideoTrack(),void this.audio.handleNoAudioTrack();i.own(r);const a=await async function(e,t){const i=await e.getPrimaryVideoTrack(),r=i?await i.getPrimaryPairableAudioTrack():await e.getPrimaryAudioTrack(),a=await ec({input:e,videoTrack:i,audioTrack:r}),s=i||r,n=Yo(t);return{input:e,videoTrack:i,audioTrack:r,duration:a,isLive:!Number.isFinite(a)&&Boolean(s&&await s.isLive()),isHls:n,videoMode:n?"auto":"manual",audioMode:n?"auto":"manual"}}(r,e);if(t!==this.loadSeq)return;this.input=r,this.media=a;let s=!a.videoTrack,n=!a.audioTrack;const o=()=>{s&&n&&(this.readyState=1,this.events.emit("loadedmetadata"),this.events.emit("durationchange"),this.events.emit("progress"))};try{if(await Promise.all([this.video.load(a,()=>{t===this.loadSeq&&(s=!0,o())}),this.audio.load(a,()=>{t===this.loadSeq&&(n=!0,o())})]),t!==this.loadSeq)return;this.readyState=4,this.networkState=1,this.events.emit("loadeddata"),this.events.emit("canplay"),this.events.emit("canplaythrough"),this.events.emit("progress")}catch(c){if(t!==this.loadSeq)return;throw console.error("MediaBunny load error:",c),c}}createTimeout(e){return new Promise((t,i)=>{setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){this.loadSession?.disposeInput(),this.input=null,this.media=null}async replaceTracks({videoTrack:e,audioTrack:t,videoMode:i,audioMode:r}){if(!this.media)return;const a={...this.media,videoTrack:e,audioTrack:t,videoMode:i,audioMode:r},s=!this.paused,n=this.currentTime;this.pause(),this.ended=!1,this.seeking=!0,this.events.emit("seeking"),this.events.emit("waiting"),a.duration=await ec(a),this.media=a,await Promise.all([this.video.load(a),this.audio.load(a)]),await Promise.all([this.video.seek(n),this.audio.seek(n)]),this.readyState=4,this.networkState=1,this.seeking=!1,this.events.emit("loadedmetadata"),this.events.emit("durationchange"),this.events.emit("progress"),this.events.emit("loadeddata"),this.events.emit("canplay"),this.events.emit("canplaythrough"),this.events.emit("seeked"),s&&await this.play()}async selectHlsQuality(e){if(!this.media?.isHls||!this.input)return;const t=await this.input.getVideoTracks(),i="auto"===e?await this.input.getPrimaryVideoTrack():t.find(t=>t.id===e)??this.media.videoTrack;if(!i)return;let r=this.media.audioTrack,a=this.media.audioMode;r&&i.canBePairedWith(r)||(r=await i.getPrimaryPairableAudioTrack(),a="auto"),await this.replaceTracks({videoTrack:i,audioTrack:r,videoMode:"auto"===e?"auto":"manual",audioMode:a})}async selectHlsAudio(e){if(!this.media?.isHls||!this.input)return;const t=await this.input.getAudioTracks(),i="auto"===e?this.media.videoTrack?await this.media.videoTrack.getPrimaryPairableAudioTrack():await this.input.getPrimaryAudioTrack():t.find(t=>t.id===e)??this.media.audioTrack;if(!i)return;let r=this.media.videoTrack,a=this.media.videoMode;r&&i.canBePairedWith(r)||(r=await i.getPrimaryPairableVideoTrack(),a="auto"),await this.replaceTracks({videoTrack:r,audioTrack:i,videoMode:a,audioMode:"auto"===e?"auto":"manual"})}getHlsState(){return async function(e){if(!e?.isHls||!e.input)return null;const[t,i]=await Promise.all([e.input.getVideoTracks(),e.videoTrack?e.videoTrack.getPairableAudioTracks():[]]),[r,a]=await Promise.all([Promise.all(t.map(async(e,t)=>({id:e.id,track:e,index:t,name:await e.getName(),height:await e.getDisplayHeight(),bitrate:await Go(e)}))),Promise.all(i.map(async(e,t)=>{const i=await e.getName(),r=await e.getLanguageCode();return{id:e.id,track:e,index:t,name:i,lang:r,language:r,bitrate:await Go(e)}}))]);return{levels:r,audios:a,currentLevel:e.videoTrack?r.find(t=>t.id===e.videoTrack?.id)??null:null,currentAudio:e.audioTrack?a.find(t=>t.id===e.audioTrack?.id)??null:null,videoMode:e.videoMode??"auto",audioMode:e.audioMode??"auto"}}(this.media)}async play(){this.paused&&(this.ended&&(this.ended=!1,await this.seek(0)),this.paused=!1,await this.audio.play(),this.video.start(this.audio),this.events.emit("play"),this.events.emit("playing"))}pause(){this.paused||(this.paused=!0,this.audio.pause(),this.video.stop(),this.events.emit("pause"))}async seek(e){const t=!this.paused;this.ended=!1,this.seeking=!0,this.events.emit("seeking"),this.events.emit("waiting"),this.pause(),await Promise.all([this.audio.seek(e),this.video.seek(e)]),this.seeking=!1,this.events.emit("seeked"),t&&!this.ended&&await this.play()}setVolume(e,t){this.audio.setVolume(e,t)}setPlaybackRate(e){this.audio.setPlaybackRate(e),this.video.setPlaybackRate(e)}destroy(){this.destroyed||(this.destroyed=!0,this.loadSeq++,this.loadSession?.cancel(),this.pause(),this.disposeInput(),this.audio.destroy(),this.video.destroy())}get currentTime(){return this.audio.currentTime}get duration(){return this.media?.duration??this.audio.duration??this.video.duration}get videoWidth(){return this.video.width}get videoHeight(){return this.video.height}}const rc=new WeakMap;function ac(e){let t=rc.get(e);return t||(t={closed:!1,frames:new Set},rc.set(e,t)),t}class sc{constructor({art:e,canvas:t,ctx:i,option:r}){this.art=e,this.canvas=t,this.option=r,this.events=new s,this.engine=new ic({canvas:t,ctx:i,events:this.events,option:r}),this._src=null,this._volume=r.volume??.7,this._muted=!!r.muted,this._playbackRate=1,this.engine.setVolume(this._volume,this._muted),this.setupEventForwarding(),r.source?this.src=r.source:e.option?.url&&(this.src=e.option.url)}setupEventForwarding(){const{events:e}=this.art.constructor.config;e.forEach(e=>{this.events.addEventListener(e,e=>{this.art.emit(`video:${e.type}`,e)})})}addEventListener(e,t){this.events.addEventListener(e,t)}removeEventListener(e,t){this.events.removeEventListener(e,t)}get src(){return this._src}set src(e){this._src=e,e&&this.engine.load(e)}get currentSrc(){return this._src}get currentTime(){return this.engine.currentTime}set currentTime(e){this.engine.seek(Number(e)||0)}get duration(){return this.engine.duration}get buffered(){return this.createTimeRanges(0,this.engine.duration)}get played(){return this.createTimeRanges(0,this.engine.currentTime)}get seekable(){return this.createTimeRanges(0,this.engine.duration)}createTimeRanges(e,t){return function(e,t,i){return!e||Number.isNaN(e)||i<=0?{length:0,start:()=>0,end:()=>0}:{length:1,start:()=>t,end:()=>i}}(this.engine.duration,e,t)}get paused(){return this.engine.paused}get playing(){return!this.engine.paused&&!this.engine.ended}get ended(){return this.engine.ended}get seeking(){return this.engine.seeking}get readyState(){return this.engine.readyState}get networkState(){return this.engine.networkState}get error(){return this.engine.error}get playbackRate(){return this._playbackRate}set playbackRate(e){const t=Number(e);Number.isNaN(t)||t<=0||(this._playbackRate=t,this.engine.setPlaybackRate(t),this.events.emit("ratechange"))}get volume(){return this._volume}set volume(e){var t;this._volume=(t=e,Math.max(0,Math.min(1,Number(t)||0))),this._muted=!1,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}get muted(){return this._muted}set muted(e){this._muted=!!e,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}play(){return this.engine.play()}pause(){this.engine.pause()}load(){this._src&&this.engine.load(this._src)}getM3u8State(){return this.engine.getHlsState()}switchM3u8Quality(e){return this.engine.selectHlsQuality(e)}switchM3u8Audio(e){return this.engine.selectHlsAudio(e)}get videoWidth(){return this.engine.videoWidth}get videoHeight(){return this.engine.videoHeight}get poster(){return this.option.poster||""}set poster(e){this.option.poster=e}get autoplay(){return this.option.autoplay||!1}set autoplay(e){}get loop(){return this.option.loop||!1}set loop(e){}get controls(){return!1}set controls(e){}get playsInline(){return!0}set playsInline(e){}get crossOrigin(){return this.option.crossOrigin||""}set crossOrigin(e){}get preload(){return"auto"}set preload(e){}get defaultMuted(){return!1}set defaultMuted(e){}get defaultPlaybackRate(){return 1}set defaultPlaybackRate(e){}canPlayType(e){return"maybe"}getBoundingClientRect(){return this.canvas.getBoundingClientRect()}requestVideoFrameCallback(e){return function(e,t){const i=ac(e);if(i.closed)return 0;const r=requestAnimationFrame(a=>{i.frames.delete(r),i.closed||t(a,{presentationTime:e.engine.currentTime,expectedDisplayTime:a+16.6,width:e.engine.videoWidth,height:e.engine.videoHeight,mediaTime:e.engine.currentTime,presentedFrames:0,processingDuration:0,captureTime:a,receiveTime:a,rtpTimestamp:0})});return i.frames.add(r),r}(this,e)}cancelVideoFrameCallback(e){!function(e,t){ac(e).frames.delete(t),cancelAnimationFrame(t)}(this,e)}setAttribute(e,t){"src"===e?this.src=t:"autoplay"===e?this.autoplay=t:"loop"===e?this.loop=t:"muted"===e?this.muted=!0:Reflect.apply(this.canvas.setAttribute,this.canvas,[e,t])}destroy(){if(function(e){const t=ac(e);if(t.closed)return!1;t.closed=!0;for(const i of t.frames)cancelAnimationFrame(i);return t.frames.clear(),!0}(this))try{this.engine.destroy()}finally{this.events.destroy()}}}return function(e={}){return t=>{const{constructor:i}=t,{createElement:r}=i.utils,s=r("canvas"),n=s.getContext("2d"),o=new sc({art:t,canvas:s,ctx:n,option:e});t.mediabunny=o;const c={};for(const e in s)"function"===typeof s[e]&&(c[e]=s[e].bind(s));const l=new Set([...Object.getOwnPropertyNames(o),...Object.getOwnPropertyNames(Object.getPrototypeOf(o))]);for(const e of l)"constructor"!==e&&(e in s||Object.defineProperty(s,e,{get(){const t=o[e];return"function"===typeof t?t.bind(o):t},set(t){o[e]=t},configurable:!0,enumerable:!0}));for(const e in c)s[e]=(...t)=>c[e](...t);function u(){const e=t.template?.$player;e&&!t.option.autoSize&&Object.assign(s.style,{width:"100%",height:"100%",objectFit:"contain"})}return t.on("resize",u),t.on("video:loadedmetadata",u),function({art:e,shim:t,option:i}){if(i.m3u8)return e.on("video:loadedmetadata",d),e.on("restart",d),{update:d};function r(t){e.controls.cache.has(t)&&e.controls.remove(t)}function s(t){e.setting.find(t)&&e.setting.remove(t)}function n(){r("mediabunny-quality"),s("mediabunny-quality")}function o(){r("mediabunny-audio"),s("mediabunny-audio")}function c(e={}){return e.control||e.setting}async function l(r){const s=i.m3u8?.quality||{};if(!c(s)||!r?.levels.length)return void n();const o=s.auto||"Auto",l=s.title||"Quality",u=s.getName||(e=>e.name||`${e.height}P`),h=r.currentLevel?u(r.currentLevel):o,f=a(r.levels.map(e=>({html:u(e),value:e.id,default:r.currentLevel?.id===e.id})),"html").sort((e,t)=>{const i=r.levels.find(t=>t.id===e.value),a=r.levels.find(e=>e.id===t.value);return(a?.height||0)-(i?.height||0)});f.push({html:o,value:"auto",default:!r.currentLevel});const m=async i=>(await t.switchM3u8Quality(i.value),e.notice.show=`${l}: ${i.html}`,await d(),i.html);s.control&&e.controls.update({name:"mediabunny-quality",position:"right",html:h,style:{padding:"0 10px"},selector:f,onSelect:m}),s.setting&&e.setting.update({name:"mediabunny-quality",tooltip:h,html:l,icon:'',width:200,selector:f,onSelect:m})}async function u(r){const s=i.m3u8?.audio||{};if(!c(s)||!r?.audios.length||r.audios.length<2)return void o();const n=s.auto||"Auto",l=s.title||"Audio",u=s.getName||(e=>e.name||e.lang||e.language),h=r.currentAudio?u(r.currentAudio):n,f=a(r.audios.map(e=>({html:u(e),value:e.id,default:r.currentAudio?.id===e.id})),"html");f.push({html:n,value:"auto",default:!r.currentAudio});const m=async i=>(await t.switchM3u8Audio(i.value),e.notice.show=`${l}: ${i.html}`,await d(),i.html);s.control&&e.controls.update({name:"mediabunny-audio",position:"right",html:h,style:{padding:"0 10px"},selector:f,onSelect:m}),s.setting&&e.setting.update({name:"mediabunny-audio",tooltip:h,html:l,icon:'',width:200,selector:f,onSelect:m})}async function d(){const e=await t.getM3u8State();if(!e)return n(),void o();await Promise.all([l(e),u(e)])}}({art:t,shim:o,option:e}),t.on("destroy",()=>{delete t.mediabunny,o.destroy()}),s}}}); diff --git a/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.legacy.js b/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.legacy.js index e376a5616..4553fb5d8 100644 --- a/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.legacy.js +++ b/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.legacy.js @@ -4,4 +4,4 @@ * (c) 2017-2026 Harvey Zhao * Released under the MIT License. */ -!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerProxyMediabunny=t(),define(function(){return e.artplayerProxyMediabunny})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerProxyMediabunny=t()}(this,function(){"use strict";var e=Object.defineProperty,t=Object.defineProperties,i=Object.getOwnPropertyDescriptors,r=Object.getOwnPropertySymbols,n=Object.prototype.hasOwnProperty,s=Object.prototype.propertyIsEnumerable,a=(e,t)=>(t=Symbol[e])?t:Symbol.for("Symbol."+e),o=Math.pow,l=(t,i,r)=>i in t?e(t,i,{enumerable:!0,configurable:!0,writable:!0,value:r}):t[i]=r,c=(e,t)=>{for(var i in t||(t={}))n.call(t,i)&&l(e,i,t[i]);if(r)for(var i of r(t))s.call(t,i)&&l(e,i,t[i]);return e},u=(e,r)=>t(e,i(r)),d=(e,t,i)=>new Promise((r,n)=>{var s=e=>{try{o(i.next(e))}catch(t){n(t)}},a=e=>{try{o(i.throw(e))}catch(t){n(t)}},o=e=>e.done?r(e.value):Promise.resolve(e.value).then(s,a);o((i=i.apply(e,t)).next())}),h=function(e,t){this[0]=e,this[1]=t},f=(e,t,i)=>{var r,n=(e,t,r,s)=>{try{var a=i[e](t),o=(t=a.value)instanceof h,l=a.done;Promise.resolve(o?t[0]:t).then(i=>o?n("return"===e?e:"next",t[1]?{done:i.done,value:i.value}:i,r,s):r({value:i,done:l})).catch(e=>n("throw",e,r,s))}catch(c){s(c)}},s=(e,t,i,s)=>o[e]=a=>(t=new Promise((t,i,s)=>(s=()=>n(e,a,t,i),r?r.then(s):s())),s=()=>r===i&&(r=0),r=i=t.then(s,s),t),o={};return i=i.apply(e,t),o[a("asyncIterator")]=()=>o,s("next"),s("throw"),s("return"),o},m=e=>{var t,i=e[a("asyncIterator")],r=!1,n={};return null==i?(i=e[a("iterator")](),t=e=>n[e]=t=>i[e](t)):(i=i.call(e),t=e=>n[e]=t=>{if(r){if(r=!1,"throw"===e)throw t;return t}return r=!0,{done:!1,value:new h(new Promise(r=>{var n=i[e](t);n instanceof Object||(e=>{throw TypeError(e)})("Object expected"),r(n)}),1)}}),n[a("iterator")]=()=>n,t("next"),"throw"in i?t("throw"):n.throw=e=>{throw e},"return"in i&&t("return"),n},p=(e,t,i)=>(t=e[a("asyncIterator")])?t.call(e):(e=e[a("iterator")](),t={},(i=(i,r)=>(r=e[i])&&(t[i]=t=>new Promise((i,n,s)=>(t=r.call(e,t),s=t.done,Promise.resolve(t.value).then(e=>i({value:e,done:s}),n)))))("next"),i("return"),t);function g(e,t){const i=new Map;return e.filter(e=>{const r=e[t];return void 0===r||!i.has(r)&&i.set(r,1)})}class k{constructor(){this.listeners=new Map}addEventListener(e,t){this.listeners.has(e)||this.listeners.set(e,[]),this.listeners.get(e).push(t)}removeEventListener(e,t){const i=this.listeners.get(e);if(!i)return;const r=i.indexOf(t);r>=0&&i.splice(r,1)}emit(e,t){const i=new Event(e);i.detail=t;const r=this.listeners.get(e);r&&r.forEach(e=>e(i))}}function y(e){if(!e)throw new Error("Assertion failed.")}const b=e=>{const t=(e%360+360)%360;if(0===t||90===t||180===t||270===t)return t;throw new Error(`Invalid rotation ${e}.`)},T=e=>e&&e[e.length-1],v=e=>{let t=0;for(;0===e.readBits(1)&&t<32;)t++;if(t>=32)throw new Error("Invalid exponential-Golomb code.");return(1<{const i=t+1,r=Math.floor(Math.log2(i));e.writeBits(r,0),e.writeBits(1,1),e.writeBits(r,i-o(2,r))},w=e=>{const t=v(e);return 0===(1&t)?-(t>>1):t+1>>1},P=e=>e.constructor===Uint8Array?e:ArrayBuffer.isView(e)?new Uint8Array(e.buffer,e.byteOffset,e.byteLength):new Uint8Array(e),I=e=>e.constructor===DataView?e:ArrayBuffer.isView(e)?new DataView(e.buffer,e.byteOffset,e.byteLength):new DataView(e),x=new TextDecoder,C=e=>Object.fromEntries(Object.entries(e).map(([e,t])=>[t,e])),B={bt709:1,bt470bg:5,smpte170m:6,bt2020:9,smpte432:12},E=C(B),_={bt709:1,smpte170m:6,linear:8,"iec61966-2-1":13,pq:16,hlg:18},R=C(_),F={rgb:0,bt709:1,bt470bg:5,smpte170m:6,"bt2020-ncl":9},A=C(F),D=e=>!!e&&!!e.primaries&&!!e.transfer&&!!e.matrix&&void 0!==e.fullRange,M={primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0},N=e=>e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e);class O{constructor(){this.currentPromise=Promise.resolve(),this.pending=0}acquire(){return d(this,null,function*(){let e;const t=new Promise(t=>{let i=!1;e=()=>{i||(t(),this.pending--,i=!0)}}),i=this.currentPromise;return this.currentPromise=t,this.pending++,yield i,e})}}const L=/^[0-9a-fA-F]+$/,z=e=>[...e].map(e=>e.toString(16).padStart(2,"0")).join(""),U=e=>(e=(e=(e=(e=(e=e>>1&1431655765|(1431655765&e)<<1)>>2&858993459|(858993459&e)<<2)>>4&252645135|(252645135&e)<<4)>>8&16711935|(16711935&e)<<8)>>16&65535|(65535&e)<<16)>>>0,q=(e,t,i)=>{let r=0,n=e.length-1,s=-1;for(;r<=n;){const a=r+n>>1,o=i(e[a]);o===t?(s=a,n=a-1):o{let r=0,n=e.length-1,s=-1;for(;r<=n;){const a=r+(n-r+1)/2|0;i(e[a])<=t?(s=a,r=a+1):n=a-1}return s},H=(e,t,i)=>{const r=W(e,i(t),i);e.splice(r+1,0,t)},V=()=>{let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}},j=(e,t)=>{const i=e.indexOf(t);-1!==i&&e.splice(i,1)},K=(e,t)=>{for(let i=e.length-1;i>=0;i--)if(t(e[i]))return e[i]},X=(e,t)=>{for(let i=e.length-1;i>=0;i--)if(t(e[i]))return i;return-1},$=e=>{throw new Error(`Unexpected value: ${e}`)},G=(e,t,i)=>{const r=e.getUint8(t),n=e.getUint8(t+1),s=e.getUint8(t+2);return i?r|n<<8|s<<16:r<<16|n<<8|s},Q=(e,t,i,r)=>{i>>>=0,i&=16777215,e.setUint8(t,i>>>16&255),e.setUint8(t+1,i>>>8&255),e.setUint8(t+2,255&i)},Y=(e,t)=>({next(){return d(this,null,function*(){const i=yield e.next();return i.done?{value:void 0,done:!0}:{value:t(i.value),done:!1}})},return:()=>e.return(),throw:t=>e.throw(t),[Symbol.asyncIterator](){return this}}),J=(e,t,i)=>Math.max(t,Math.min(i,e)),Z="und",ee=e=>{const t=Math.round(e);return Math.abs(e/t-1)<10*Number.EPSILON?t:e},te=(e,t)=>Math.round(e/t)*t,ie=(e,t)=>Math.round(e*t)/t,re=(e,t)=>Math.floor(e/t)*t,ne=e=>{let t=0;for(;0!==e;)e&=e-1,t++;return t},se=/^[a-z]{3}$/,ae=e=>se.test(e),oe=1e6*(1+Number.EPSILON),le=(e,t)=>{const i=c(c({},e),t);if(e.headers||t.headers){const r=e.headers?ce(e.headers):{},n=t.headers?ce(t.headers):{},s=c({},r);Object.entries(n).forEach(([e,t])=>{const i=Object.keys(s).find(t=>t.toLowerCase()===e.toLowerCase());i&&delete s[i],s[e]=t}),i.headers=s}return i},ce=e=>{if(e instanceof Headers){const t={};return e.forEach((e,i)=>{t[i]=e}),t}if(Array.isArray(e)){const t={};return e.forEach(([e,i])=>{t[e]=i}),t}return e},ue=(e,t,i,r,n)=>d(null,null,function*(){let s=0;for(;;)try{return yield e(t,i)}catch(a){if(n())throw a;s++;const e=r(s,a,t);if(null===e)throw a;if(Me._error("Retrying failed fetch. Error:",a),!Number.isFinite(e)||e<0)throw new TypeError("Retry delay must be a non-negative finite number.");if(e>0&&(yield Re(1e3*e)),n())throw a}});class de{constructor(){this.currentPromise=Promise.resolve()}call(e){return this.currentPromise=this.currentPromise.then(e)}}let he=null;const fe=()=>{var e;return null!==he?he:he=!("undefined"===typeof navigator||!((null==(e=navigator.vendor)?void 0:e.match(/apple/i))||/AppleWebKit/.test(navigator.userAgent)&&!/Chrome/.test(navigator.userAgent)||/\b(iPad|iPhone|iPod)\b/.test(navigator.userAgent)))};let me=null;const pe=()=>{var e;return null!==me?me:me="undefined"!==typeof navigator&&(null==(e=navigator.userAgent)?void 0:e.includes("Firefox"))};let ge=null;const ke=()=>{var e;return null!==ge?ge:ge=!("undefined"===typeof navigator||!(null==(e=navigator.vendor)?void 0:e.includes("Google Inc"))&&!/Chrome/.test(navigator.userAgent))},ye=e=>"undefined"===typeof globalThis.isSecureContext||globalThis.isSecureContext?`${e} is not available in this environment.`:`${e} is not available in this environment; this may be because this page is running in an insecure context. Try serving your page over HTTPS or use localhost.`,be=d(null,null,function*(){}).constructor,Te=e=>e instanceof be||e instanceof Promise||"function"===typeof(null==e?void 0:e.then),ve=(e,t)=>-1!==e?e:t,Se=(e,t,i,r)=>e<=r&&i<=t,we=e=>{const t=atob(e),i=new Uint8Array(t.length);for(let r=0;r{null!=Symbol.dispose||(Symbol.dispose=Symbol("Symbol.dispose"))},Ie=e=>"number"===typeof e&&!Number.isNaN(e),xe=(e,t)=>{if(t.includes("://"))return t;if(e.includes("://")){const t=e.indexOf("?");-1!==t&&(e=e.slice(0,t))}let i;if(t.startsWith("/")){const r=e.indexOf("://");if(-1===r)i=t;else{const n=e.indexOf("/",r+3);i=-1===n?e+t:e.slice(0,n)+t}}else{const r=e.lastIndexOf("/");i=-1===r?t:e.slice(0,r+1)+t}let r="";const n=i.indexOf("://");if(-1!==n){const e=i.indexOf("/",n+3);-1!==e&&(r=i.slice(0,e),i=i.slice(e))}const s=i.split("/"),a=[];for(const o of s)".."===o?a.pop():"."!==o&&a.push(o);return r+a.join("/")},Ce=(e,t)=>{let i=0;for(let r=0;r{let i=-1,r=1/0;for(let n=0;n{y(Number.isInteger(e.num)),y(Number.isInteger(e.den)),y(0!==e.den);let t=Math.abs(e.num),i=Math.abs(e.den);for(;0!==i;){const e=t%i;t=i,i=e}const r=t||1;return{num:e.num/r,den:e.den/r}},_e=(e,t)=>{if("object"!==typeof e||!e)throw new TypeError(`${t} must be an object.`);if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(`${t}.left must be a non-negative integer.`);if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(`${t}.top must be a non-negative integer.`);if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(`${t}.width must be a non-negative integer.`);if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(`${t}.height must be a non-negative integer.`)},Re=e=>new Promise(t=>setTimeout(t,e));class Fe{constructor(){this._listeners=new Map}on(e,t,i){var r;this._listeners.has(e)||this._listeners.set(e,new Set);const n={fn:t,once:null!=(r=null==i?void 0:i.once)&&r};return this._listeners.get(e).add(n),()=>{var t;null==(t=this._listeners.get(e))||t.delete(n)}}_emit(...e){const[t,i]=e,r=this._listeners.get(t);if(r)for(const s of r){try{s.fn(i)}catch(n){console.error(n)}s.once&&r.delete(s)}}}var Ae,De;(De=Ae||(Ae={}))[De.Silent=0]="Silent",De[De.Errors=1]="Errors",De[De.Warnings=2]="Warnings",De[De.Info=3]="Info";class Me{constructor(){}static get level(){return Me._level}static set level(e){if(e!==Ae.Silent&&e!==Ae.Errors&&e!==Ae.Warnings&&e!==Ae.Info)throw new TypeError("Invalid log level. Use one of the values of the LogLevel enum.");Me._level=e}static get _emitter(){var e;return null!=(e=Me._emitterInstance)?e:Me._emitterInstance=new Fe}static on(e,t,i){return Me._emitter.on(e,t,i)}static _error(...e){Me._emitter._emit("error",e),Me._level>=Ae.Errors&&console.error(...e)}static _warn(...e){Me._emitter._emit("warn",e),Me._level>=Ae.Warnings&&console.warn(...e)}static _info(...e){Me._emitter._emit("info",e),Me._level>=Ae.Info&&console.info(...e)}}Me._level=Ae.Info,Me._emitterInstance=null;class Ne{constructor(e,t){if(this.data=e,this.mimeType=t,!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("string"!==typeof t)throw new TypeError("mimeType must be a string.")}}class Oe{constructor(e,t,i,r){if(this.data=e,this.mimeType=t,this.name=i,this.description=r,!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if(void 0!==t&&"string"!==typeof t)throw new TypeError("mimeType, when provided, must be a string.");if(void 0!==i&&"string"!==typeof i)throw new TypeError("name, when provided, must be a string.");if(void 0!==r&&"string"!==typeof r)throw new TypeError("description, when provided, must be a string.")}}const Le={default:!0,primary:!0,forced:!1,original:!1,commentary:!1,hearingImpaired:!1,visuallyImpaired:!1};class ze{constructor(e){this.bytes=e,this.pos=0}seekToByte(e){this.pos=8*e}readBit(){var e;const t=Math.floor(this.pos/8),i=null!=(e=this.bytes[t])?e:0,r=7-(7&this.pos),n=(i&1<>r;return this.pos++,n}readBits(e){if(1===e)return this.readBit();let t=0;for(let i=0;i>i-r-1<0&&this.writeBits(r,t.readBits(r))}readAlignedByte(){var e;if(this.pos%8!==0)throw new Error("Bitstream is not byte-aligned.");const t=this.pos/8,i=null!=(e=this.bytes[t])?e:0;return this.pos+=8,i}skipBits(e){this.pos+=e}getBitsLeft(){return 8*this.bytes.length-this.pos}clone(){const e=new ze(this.bytes);return e.pos=this.pos,e}}const Ue=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350],qe=[-1,1,2,3,4,5,6,8],We=e=>{if(!e||e.byteLength<2)throw new TypeError("AAC description must be at least 2 bytes long.");const t=new ze(e),i=He(t),{frequencyIndex:r,sampleRate:n}=Ve(t),s=t.readBits(4);let a=null;s>=1&&s<=7&&(a=qe[s]);let o=i,l=!1,c=n;if(5===i||29===i)l=29===i,c=Ve(t).sampleRate,o=He(t),22===o&&t.skipBits(4);else for(;t.getBitsLeft()>15;){const e=t.pos;if(695===t.readBits(11)){5===He(t)&&t.readBits(1)&&(c=Ve(t).sampleRate,t.getBitsLeft()>11&&1352===t.readBits(11)&&(l=!!t.readBits(1)));break}t.pos=e+1}return null!==a&&a>1&&(l=!1),{objectType:i,coreObjectType:o,frequencyIndex:r,channelConfiguration:s,outputSampleRate:c,outputNumberOfChannels:l&&1===a?2:a}},He=e=>{const t=e.readBits(5);return 31===t?32+e.readBits(6):t},Ve=e=>{const t=e.readBits(4);return 15===t?{frequencyIndex:t,sampleRate:e.readBits(24)}:{frequencyIndex:t,sampleRate:t=e.length-2)break;t=r;let n=0;t+3i&&(yield{offset:i,length:t-i}),i=t+n,t=i):t++}-1!==i&&i{if(t.description){const i=3&P(t.description)[4];return Je(e,i+1)}return Ye(e)},et=e=>31&e,tt=e=>{const t=[],i=e.length;for(let r=0;r{const t=e.reduce((e,t)=>e+it.byteLength+t.byteLength,0),i=new Uint8Array(t);let r=0;for(const n of e)i.set(it,r),r+=it.byteLength,i.set(n,r),r+=n.byteLength;return i},nt=(e,t)=>{const i=e.reduce((e,i)=>e+t+i.byteLength,0),r=new Uint8Array(i);let n=0;for(const s of e){const e=new DataView(r.buffer,r.byteOffset,r.byteLength);switch(t){case 1:e.setUint8(n,s.byteLength);break;case 2:e.setUint16(n,s.byteLength,!1);break;case 3:Q(e,n,s.byteLength);break;case 4:e.setUint32(n,s.byteLength,!1)}n+=t,r.set(s,n),n+=s.byteLength}return r},st=e=>{try{const t=[],i=[],r=[];for(const o of Ye(e)){const n=e.subarray(o.offset,o.offset+o.length),s=et(n[0]);s===Xe.SPS?t.push(n):s===Xe.PPS?i.push(n):s===Xe.SPS_EXT&&r.push(n)}if(0===t.length)return null;if(0===i.length)return null;const n=t[0],s=ct(n);y(null!==s);const a=100===s.profileIdc||110===s.profileIdc||122===s.profileIdc||144===s.profileIdc;return{configurationVersion:1,avcProfileIndication:s.profileIdc,profileCompatibility:s.constraintFlags,avcLevelIndication:s.levelIdc,lengthSizeMinusOne:3,sequenceParameterSets:t,pictureParameterSets:i,chromaFormat:a?s.chromaFormatIdc:null,bitDepthLumaMinus8:a?s.bitDepthLumaMinus8:null,bitDepthChromaMinus8:a?s.bitDepthChromaMinus8:null,sequenceParameterSetExt:a?r:null}}catch(t){return Me._error("Error building AVC Decoder Configuration Record:",t),null}},at=e=>{const t=[];t.push(e.configurationVersion),t.push(e.avcProfileIndication),t.push(e.profileCompatibility),t.push(e.avcLevelIndication),t.push(252|3&e.lengthSizeMinusOne),t.push(224|31&e.sequenceParameterSets.length);for(const i of e.sequenceParameterSets){const e=i.byteLength;t.push(e>>8),t.push(255&e);for(let r=0;r>8),t.push(255&e);for(let r=0;r>8),t.push(255&e);for(let r=0;r{try{const t=I(e);let i=0;const r=t.getUint8(i++),n=t.getUint8(i++),s=t.getUint8(i++),a=t.getUint8(i++),o=3&t.getUint8(i++),l=31&t.getUint8(i++),c=[];for(let f=0;f{var t;try{const i=tt(e),r=new ze(i);r.skipBits(1),r.skipBits(2);if(7!==r.readBits(5))return null;const n=r.readAlignedByte(),s=r.readAlignedByte(),a=r.readAlignedByte();v(r);let o=1,l=0,c=0,u=0;if(100===n||110===n||122===n||244===n||44===n||83===n||86===n||118===n||128===n){o=v(r),3===o&&(u=r.readBits(1)),l=v(r),c=v(r),r.skipBits(1);if(r.readBits(1))for(let e=0;e<(3!==o?8:12);e++){if(r.readBits(1)){const t=e<6?16:64;let i=8,n=8;for(let e=0;ee.level>=a))?t:T(ai),n=Math.min(Math.floor(r.maxDpbMbs/(e*i)),16);B=n,E=n}else B=0,E=0}return y(null!==E),{emulationUnpreventedBytes:i,profileIdc:n,constraintFlags:s,levelIdc:a,frameMbsOnlyFlag:b,chromaFormatIdc:o,bitDepthLumaMinus8:l,bitDepthChromaMinus8:c,codedWidth:m,codedHeight:p,displayWidth:g,displayHeight:k,pixelAspectRatio:C,colourPrimaries:S,matrixCoefficients:I,transferCharacteristics:P,fullRangeFlag:x,numReorderFrames:B,maxDecFrameBuffering:E,vuiParametersFlagBitOffset:F,bitstreamRestrictionFlagBitOffset:_,bitstreamRestrictionFlag:R}}catch(i){return Me._error("Error parsing AVC SPS:",i),null}},ut=e=>{const t=v(e);e.skipBits(4),e.skipBits(4);for(let i=0;i<=t;i++)v(e),v(e),e.skipBits(1);e.skipBits(5),e.skipBits(5),e.skipBits(5),e.skipBits(5)},dt=e=>{y(1!==e.bitstreamRestrictionFlag);const t=new Uint8Array(e.emulationUnpreventedBytes.byteLength+64),i=new ze(e.emulationUnpreventedBytes),r=new ze(t);null===e.bitstreamRestrictionFlag?(r.copyBits(e.vuiParametersFlagBitOffset,i),r.writeBits(1,1),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0)):(y(null!==e.bitstreamRestrictionFlagBitOffset),r.copyBits(e.bitstreamRestrictionFlagBitOffset,i)),r.writeBits(1,1),r.writeBits(1,1),S(r,2),S(r,1),S(r,16),S(r,16),S(r,e.numReorderFrames),S(r,e.maxDecFrameBuffering),r.writeBits(1,1),r.writeBits((8-r.pos%8)%8,0);const n=r.pos/8;return y(Number.isInteger(n)),(e=>{const t=[];let i=0;for(const r of e)2===i&&r<=3&&(t.push(3),i=0),t.push(r),i=0===r?i+1:0;return new Uint8Array(t)})(t.subarray(0,n))},ht=(e,t)=>{if(t.description){const i=3&P(t.description)[21];return Je(e,i+1)}return Ye(e)},ft=e=>e>>1&63,mt=e=>{try{const t=new ze(tt(e));t.skipBits(16),t.readBits(4);const i=t.readBits(3),r=t.readBits(1),{general_profile_space:n,general_tier_flag:s,general_profile_idc:a,general_profile_compatibility_flags:o,general_constraint_indicator_flags:l,general_level_idc:c}=gt(t,i);v(t);const u=v(t);let d=0;3===u&&(d=t.readBits(1));const h=v(t),f=v(t);let m=h,p=f;if(t.readBits(1)){const e=v(t),i=v(t),r=v(t),n=v(t);let s=1,a=1;const o=0===d?u:0;1===o?(s=2,a=2):2===o&&(s=2,a=1),m-=(e+i)*s,p-=(r+n)*a}const g=v(t),k=v(t);v(t);const y=t.readBits(1);let b=0;for(let e=y?0:i;e<=i;e++)v(t),b=v(t),v(t);v(t),v(t),v(t),v(t),v(t),v(t),t.readBits(1)&&t.readBits(1)&&kt(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),v(t),v(t),t.skipBits(1));const T=v(t);if(yt(t,T),t.readBits(1)){const e=v(t);for(let i=0;i{try{const t=[],i=[],r=[],n=[];for(const l of Ye(e)){const s=e.subarray(l.offset,l.offset+l.length),a=ft(s[0]);a===Ge.VPS_NUT?t.push(s):a===Ge.SPS_NUT?i.push(s):a===Ge.PPS_NUT?r.push(s):a!==Ge.PREFIX_SEI_NUT&&a!==Ge.SUFFIX_SEI_NUT||n.push(s)}if(0===i.length||0===r.length)return null;const s=mt(i[0]);if(!s)return null;let a=0;if(r.length>0){const e=r[0],t=new ze(tt(e));t.skipBits(16),v(t),v(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),v(t),v(t),w(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&v(t),w(t),w(t),t.skipBits(1),t.skipBits(1),t.skipBits(1),t.skipBits(1);const i=t.readBits(1),n=t.readBits(1);a=i||n?i&&!n?2:!i&&n?3:0:0}const o=[...t.length?[{arrayCompleteness:1,nalUnitType:Ge.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:Ge.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:Ge.PPS_NUT,nalUnits:r}]:[],...n.length?[{arrayCompleteness:1,nalUnitType:ft(n[0][0]),nalUnits:n}]:[]];return{configurationVersion:1,generalProfileSpace:s.generalProfileSpace,generalTierFlag:s.generalTierFlag,generalProfileIdc:s.generalProfileIdc,generalProfileCompatibilityFlags:s.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:s.generalConstraintIndicatorFlags,generalLevelIdc:s.generalLevelIdc,minSpatialSegmentationIdc:s.minSpatialSegmentationIdc,parallelismType:a,chromaFormatIdc:s.chromaFormatIdc,bitDepthLumaMinus8:s.bitDepthLumaMinus8,bitDepthChromaMinus8:s.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:s.spsMaxSubLayersMinus1+1,temporalIdNested:s.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:o}}catch(t){return Me._error("Error building HEVC Decoder Configuration Record:",t),null}},gt=(e,t)=>{const i=e.readBits(2),r=e.readBits(1),n=e.readBits(5);let s=0;for(let u=0;u<32;u++)s=s<<1|e.readBits(1);const a=new Uint8Array(6);for(let u=0;u<6;u++)a[u]=e.readBits(8);const o=e.readBits(8),l=[],c=[];for(let u=0;u0)for(let u=t;u<8;u++)e.skipBits(2);for(let u=0;u{for(let t=0;t<4;t++)for(let i=0;i<(3===t?2:6);i++){if(e.readBits(1)){const i=Math.min(64,1<<4+(t<<1));t>1&&w(e);for(let t=0;t{const i=[];for(let r=0;r{var n;let s=0,a=0,o=0;if(0!==t&&(a=e.readBits(1)),a){if(t===i){o=t-(v(e)+1)}else o=t-1;e.readBits(1),v(e);const a=null!=(n=r[o])?n:0;for(let t=0;t<=a;t++){e.readBits(1)||e.readBits(1)}s=r[o]}else{const t=v(e),i=v(e);for(let r=0;r{let i=2,r=2,n=2,s=0,a=0,o={num:1,den:1};if(e.readBits(1)){const t=e.readBits(8);if(255===t)o={num:e.readBits(16),den:e.readBits(16)};else{const e=lt[t];e&&(o=e)}}return e.readBits(1)&&e.readBits(1),e.readBits(1)&&(e.readBits(3),s=e.readBits(1),e.readBits(1)&&(i=e.readBits(8),r=e.readBits(8),n=e.readBits(8))),e.readBits(1)&&(v(e),v(e)),e.readBits(1),e.readBits(1),e.readBits(1),e.readBits(1)&&(v(e),v(e),v(e),v(e)),e.readBits(1)&&(e.readBits(32),e.readBits(32),e.readBits(1)&&v(e),e.readBits(1)&&vt(e,!0,t)),e.readBits(1)&&(e.readBits(1),e.readBits(1),e.readBits(1),a=v(e),v(e),v(e),v(e),v(e)),{pixelAspectRatio:o,colourPrimaries:i,transferCharacteristics:r,matrixCoefficients:n,fullRangeFlag:s,minSpatialSegmentationIdc:a}},vt=(e,t,i)=>{let r=!1,n=!1,s=!1;r=1===e.readBits(1),n=1===e.readBits(1),(r||n)&&(s=1===e.readBits(1),s&&(e.readBits(8),e.readBits(5),e.readBits(1),e.readBits(5)),e.readBits(4),e.readBits(4),s&&e.readBits(4),e.readBits(5),e.readBits(5),e.readBits(5));for(let a=0;a<=i;a++){let t=!0;1===e.readBits(1)||(t=1===e.readBits(1));let i=!1;t?v(e):i=1===e.readBits(1);let a=1;if(!i){a=v(e)+1}r&&St(e,a,s),n&&St(e,a,s)}},St=(e,t,i)=>{for(let r=0;r{const i=new Set;let r=wt.audAllowed;for(const s of ht(e,t)){if(r===wt.noMoreDataAllowed){i.add(s.offset);continue}const t=ft(e[s.offset]);if(r===wt.eoBitstreamAllowed&&37!==t){i.add(s.offset);continue}let n=!1;35===t?r>wt.audAllowed?n=!0:r=wt.beforeFirstVcl:t<=31?r>wt.afterFirstVcl?n=!0:r=wt.afterFirstVcl:36===t?r!==wt.afterFirstVcl?n=!0:r=wt.eoBitstreamAllowed:37===t?r=41&&t<=44||t>=48&&t<=55?r>wt.beforeFirstVcl?n=!0:r=wt.beforeFirstVcl:(38===t||40===t||t>=45&&t<=47||t>=56&&t<=63)&&r{if(t.description){const i=3&P(t.description)[21];return nt(e,i+1)}return rt(e)})(n,t)},xt={1:{colourPrimaries:5,transferCharacteristics:6,matrixCoefficients:5},2:{colourPrimaries:1,transferCharacteristics:1,matrixCoefficients:1},3:{colourPrimaries:6,transferCharacteristics:6,matrixCoefficients:6},4:{colourPrimaries:7,transferCharacteristics:7,matrixCoefficients:7},5:{colourPrimaries:9,transferCharacteristics:14,matrixCoefficients:9},7:{colourPrimaries:1,transferCharacteristics:13,matrixCoefficients:0}},Ct=e=>{var t,i,r;const n=new ze(e);if(2!==n.readBits(2))return null;const s=n.readBits(1),a=(n.readBits(1)<<1)+s;3===a&&n.skipBits(1);if(1===n.readBits(1))return null;if(0!==n.readBits(1))return null;n.skipBits(2);if(4817730!==n.readBits(24))return null;let o=8;if(a>=2){o=n.readBits(1)?12:10}const l=n.readBits(3);let c=0,u=0;if(7!==l){if(u=n.readBits(1),1===a||3===a){const e=n.readBits(1),t=n.readBits(1);c=e||t?e&&!t?2:1:3,n.skipBits(1)}else c=1}else c=3,u=1;const d=(n.readBits(16)+1)*(n.readBits(16)+1);let h=T(oi).level;for(const m of oi)if(d<=m.maxPictureSize){h=m.level;break}const f=xt[l];return{profile:a,level:h,bitDepth:o,chromaSubsampling:c,videoFullRangeFlag:u,colourPrimaries:null!=(t=null==f?void 0:f.colourPrimaries)?t:2,transferCharacteristics:null!=(i=null==f?void 0:f.transferCharacteristics)?i:2,matrixCoefficients:null!=(r=null==f?void 0:f.matrixCoefficients)?r:2}},Bt=function*(e){const t=new ze(e),i=()=>{let e=0;for(let i=0;i<8;i++){const r=t.readAlignedByte();if(e+=(127&r)*o(2,7*i),!(128&r))break;if(7===i&&128&r)return null}return e>o(2,32)-1?null:e};for(;t.getBitsLeft()>=8;){t.skipBits(1);const r=t.readBits(4),n=t.readBits(1),s=t.readBits(1);let a;if(t.skipBits(1),n&&t.skipBits(8),s){const e=i();if(null===e)return;a=e}else a=Math.floor(t.getBitsLeft()/8);y(t.pos%8===0),yield{type:r,data:e.subarray(t.pos/8,t.pos/8+a)},t.skipBits(8*a)}},Et=e=>{for(const{type:t,data:i}of Bt(e)){if(1!==t)continue;const e=new ze(i),r=e.readBits(3);e.readBits(1);const n=e.readBits(1);let s=0,a=0,o=0;if(n)s=e.readBits(5);else{let t=0;if(e.readBits(1)){e.skipBits(32),e.skipBits(32);if(e.readBits(1)){let t=0;for(;t<32&&!e.readBits(1);)t++;t<32&&e.skipBits(t)}t=e.readBits(1),t&&(o=e.readBits(5),e.skipBits(32),e.skipBits(5),e.skipBits(5))}const i=e.readBits(1),r=e.readBits(5);for(let n=0;n<=r;n++){e.skipBits(12);const r=e.readBits(5);if(0===n&&(s=r),r>7){const t=e.readBits(1);0===n&&(a=t)}if(t){if(e.readBits(1)){const t=o+1;e.skipBits(t),e.skipBits(t),e.skipBits(1)}}if(i){e.readBits(1)&&e.skipBits(4)}}}const l=e.readBits(4),c=e.readBits(4),u=l+1;e.skipBits(u);const d=c+1;e.skipBits(d);let h=0;if(h=n?0:e.readBits(1),h&&(e.skipBits(4),e.skipBits(3)),e.skipBits(1),e.skipBits(1),e.skipBits(1),!n){e.skipBits(1),e.skipBits(1),e.skipBits(1),e.skipBits(1);const t=e.readBits(1);t&&(e.skipBits(1),e.skipBits(1));let i=0;if(i=e.readBits(1)?2:e.readBits(1),i>0){e.readBits(1)||e.skipBits(1)}t&&e.skipBits(3)}e.skipBits(1),e.skipBits(1),e.skipBits(1);const f=e.readBits(1);let m=8;if(2===r&&f){m=e.readBits(1)?12:10}else r<=2&&(m=f?10:8);let p=0;1!==r&&(p=e.readBits(1));let g=2,k=2,y=2;e.readBits(1)&&(g=e.readBits(8),k=e.readBits(8),y=e.readBits(8));let b=0,T=1,v=1,S=0;return p?b=e.readBits(1):1===g&&13===k&&0===y?(b=1,T=0,v=0):(b=e.readBits(1),0===r?(T=1,v=1):1===r?(T=0,v=0):12===m?(T=e.readBits(1),v=T?e.readBits(1):0):(T=1,v=0),T&&v&&(S=e.readBits(2))),{profile:r,level:s,tier:a,bitDepth:m,monochrome:p,chromaSubsamplingX:T,chromaSubsamplingY:v,chromaSamplePosition:S,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},_t=e=>{if(e.length<36)return null;const t=I(e);if(1768124518!==t.getUint32(4))return null;return t.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:t.getUint8(22),transferCharacteristics:t.getUint8(23),matrixCoefficients:t.getUint8(24)}},Rt=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],Ft=e=>{if(e.length<7)throw new Error("Setup header is too short.");if(5!==e[0])throw new Error("Wrong packet type in Setup header.");if("vorbis"!==String.fromCharCode(...e.slice(1,7)))throw new Error("Invalid packet signature in Setup header.");const t=e.length,i=new Uint8Array(t);for(let u=0;u97;)if(1===r.readBits(1)){n=r.pos;break}if(0===n)throw new Error("Invalid Setup header: framing bit not found.");let s=0,a=!1,o=0;for(;r.getBitsLeft()>=97;){const e=r.pos,t=r.readBits(8),i=r.readBits(16),n=r.readBits(16);if(t>63||0!==i||0!==n){r.pos=e;break}if(r.skipBits(1),s++,s>64)break;r.clone().readBits(6)+1===s&&(a=!0,o=s)}if(!a)throw new Error("Invalid Setup header: mode header not found.");if(o>63)throw new Error(`Unsupported mode count: ${o}.`);const l=o;r.pos=0,r.skipBits(n);const c=Array(l).fill(0);for(let u=l-1;u>=0;u--)r.skipBits(40),c[u]=r.readBits(1);return{modeBlockflags:c}},At=(e,t,i)=>{switch(e){case"avc":for(const e of Ze(i,t)){const t=i[e.offset],r=et(t);if(r>=Xe.NON_IDR_SLICE&&r<=Xe.SLICE_DPC)return"delta";if(r===Xe.IDR)return"key";if(r===Xe.SEI&&!ke()){const t=i.subarray(e.offset,e.offset+e.length),r=tt(t);let n=1;do{let e=0;for(;;){const t=r[n++];if(void 0===t)break;if(e+=t,t<255)break}let t=0;for(;;){const e=r[n++];if(void 0===e)break;if(t+=e,e<255)break}if(e===6){const e=new ze(r);e.pos=8*n;const t=v(e),i=e.readBits(1);if(0===t&&1===i)return"key"}n+=t}while(n{var i,r;const n=I(e);let s=0;const a=n.getUint32(s,!0);s+=4;const o=x.decode(e.subarray(s,s+a));s+=a,a>0&&(null!=t.raw||(t.raw={}),null!=(i=t.raw).vendor||(i.vendor=o));const l=n.getUint32(s,!0);s+=4;for(let c=0;c0&&(null!=t.trackNumber||(t.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=t.tracksTotal||(t.tracksTotal=r))}break;case"TRACKTOTAL":{const e=Number.parseInt(c,10);Number.isInteger(e)&&e>0&&(null!=t.tracksTotal||(t.tracksTotal=e))}break;case"DISCNUMBER":{const e=c.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=t.discNumber||(t.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=t.discsTotal||(t.discsTotal=r))}break;case"DISCTOTAL":{const e=Number.parseInt(c,10);Number.isInteger(e)&&e>0&&(null!=t.discsTotal||(t.discsTotal=e))}break;case"DATE":{const e=new Date(c);Number.isNaN(e.getTime())||null!=t.date||(t.date=e)}break;case"GENRE":null!=t.genre||(t.genre=c);break;case"METADATA_BLOCK_PICTURE":{const e=we(c),i=I(e),r=i.getUint32(0,!1),n=i.getUint32(4,!1),s=String.fromCharCode(...e.subarray(8,8+n)),a=i.getUint32(8+n,!1),o=x.decode(e.subarray(12+n,12+n+a)),l=i.getUint32(n+a+28),u=e.subarray(n+a+32,n+a+32+l);null!=t.images||(t.images=[]),t.images.push({data:u,mimeType:s,kind:3===r?"coverFront":4===r?"coverBack":"unknown",name:void 0,description:o||void 0})}}}},Ot=[2,1,2,3,3,4,4,5],Lt=e=>{if(e.length<7)return null;if(11!==e[0]||119!==e[1])return null;const t=new ze(e);t.skipBits(16),t.skipBits(16);const i=t.readBits(2);if(3===i)return null;const r=t.readBits(6),n=t.readBits(5);if(n>8)return null;const s=t.readBits(3),a=t.readBits(3);0!==(1&a)&&1!==a&&t.skipBits(2),0!==(4&a)&&t.skipBits(2),2===a&&t.skipBits(2);return{fscod:i,bsid:n,bsmod:s,acmod:a,lfeon:t.readBits(1),bitRateCode:Math.floor(r/2)}},zt=[128,138,192,128,140,192,160,174,240,160,176,240,192,208,288,192,210,288,224,242,336,224,244,336,256,278,384,256,280,384,320,348,480,320,350,480,384,416,576,384,418,576,448,486,672,448,488,672,512,556,768,512,558,768,640,696,960,640,698,960,768,834,1152,768,836,1152,896,974,1344,896,976,1344,1024,1114,1536,1024,1116,1536,1280,1392,1920,1280,1394,1920,1536,1670,2304,1536,1672,2304,1792,1950,2688,1792,1952,2688,2048,2228,3072,2048,2230,3072,2304,2506,3456,2304,2508,3456,2560,2786,3840,2560,2788,3840],Ut=[1,2,3,6],qt=e=>{if(e.length<6)return null;if(11!==e[0]||119!==e[1])return null;const t=new ze(e);t.skipBits(16);const i=t.readBits(2);if(t.skipBits(3),0!==i&&2!==i)return null;const r=t.readBits(11),n=t.readBits(2);let s,a=0;3===n?(a=t.readBits(2),s=3):s=t.readBits(2);const o=t.readBits(3),l=t.readBits(1),c=t.readBits(5);if(c<11||c>16)return null;const u=Ut[s];let d;d=n<3?je[n]/1e3:Ke[a]/1e3;return{dataRate:Math.round((r+1)*d/(16*u)),substreams:[{fscod:n,fscod2:a,bsid:c,bsmod:0,acmod:o,lfeon:l,numDepSub:0,chanLoc:0}]}},Wt=e=>{const t=e.substreams[0];return y(t),t.fscod<3?je[t.fscod]:null!==t.fscod2&&t.fscod2<3?Ke[t.fscod2]:null},Ht=e=>{const t=e.substreams[0];y(t);let i=Ot[t.acmod]+t.lfeon;if(t.numDepSub>0){const e=[2,2,1,1,2,2,2,1,1];for(let r=0;r<9;r++)t.chanLoc&1<<8-r&&(i+=e[r])}return i},Vt=[0,8e3,16e3,32e3,0,0,11025,22050,44100,0,0,12e3,24e3,48e3,96e3,192e3],jt=[32e3,56e3,64e3,96e3,112e3,128e3,192e3,224e3,256e3,32e4,384e3,448e3,512e3,576e3,64e4,768e3,96e4,1024e3,1152e3,128e4,1344e3,1408e3,1411200,1472e3,1536e3,192e4,2048e3,3072e3,384e4,0,0,0],Kt=[16,16,20,20,0,24,24,0],Xt=[1,2,2,2,2,3,3,4,4,5,6,6,6,7,8,8],$t=[1,2,2,2,2,3,18,19,6,7,518,323,83,519,582,535],Gt=[32e3,44100,48e3,0],Qt=[8e3,16e3,32e3,64e3,128e3,22050,44100,88200,176400,352800,12e3,24e3,48e3,96e3,192e3,384e3],Yt=[512,1024,2048,4096],Jt=e=>{const t=ei(e),i=I(e);let r=t?4*Math.ceil(t.frameSize/4):0,n=null;for(;r+4<=e.length&&1683496997===i.getUint32(r);){const t=ti(e.subarray(r));if(!t)break;null!=n||(n=t),r+=t.frameSize}if(t)return{frameSize:n?r:t.frameSize,sampleRate:t.sampleRate,numberOfChannels:t.numberOfChannels,sampleCount:t.sampleCount,channelLayout:t.channelLayout,pcmResolution:t.pcmResolution,bitRate:t.bitRate,core:t,hasExtensions:null!==n};if(!(null==n?void 0:n.asset))return null;const{asset:s}=n;return{frameSize:r,sampleRate:s.sampleRate,numberOfChannels:s.numberOfChannels,sampleCount:s.sampleCount,channelLayout:s.channelLayout,pcmResolution:s.pcmResolution,bitRate:0,core:null,hasExtensions:!0}},Zt=e=>{const t=Jt(e);return(null==t?void 0:t.core)?t.hasExtensions?"dtsh":"dtsc":null},ei=e=>{if(e.length<18)return null;if(127!==e[0]||254!==e[1]||128!==e[2]||1!==e[3])return null;const t=new ze(e);if(t.skipBits(32),t.skipBits(1),31!==t.readBits(5))return null;const i=t.readBits(1),r=t.readBits(7)+1;if(r%8!==0)return null;const n=t.readBits(14)+1;if(n<96)return null;const s=t.readBits(6);if(s>=Xt.length)return null;const a=Vt[t.readBits(4)];if(0===a)return null;const o=jt[t.readBits(5)];if(0!==t.readBits(1))return null;t.skipBits(4),t.skipBits(5);const l=t.readBits(2);if(3===l)return null;t.skipBits(1),i&&t.skipBits(16),t.skipBits(7);const c=Kt[t.readBits(3)];if(0===c)return null;const u=0!==l;return{frameSize:n,sampleRate:a,numberOfChannels:Xt[s]+(u?1:0),sampleCount:32*r,channelLayout:$t[s]|(u?8:0),amode:s,lfePresent:u,bitRate:o,pcmResolution:c}},ti=e=>{if(e.length<10)return null;if(100!==e[0]||88!==e[1]||32!==e[2]||37!==e[3])return null;const t=new ze(e);t.skipBits(32),t.skipBits(8);const i=t.readBits(2),r=t.readBits(1),n=8+4*r,s=16+4*r;t.skipBits(n);const a=t.readBits(s)+1,o={frameSize:a,asset:null};if(!t.readBits(1))return o;const l=Gt[t.readBits(2)],c=512*(t.readBits(3)+1);t.readBits(1)&&t.skipBits(36);const u=t.readBits(3)+1,d=t.readBits(3)+1,h=[];for(let k=0;k2&&t.skipBits(1),p>6&&t.skipBits(1),t.readBits(1))){const e=t.readBits(2)+1<<2;g=t.readBits(e)}return 0===l||t.getBitsLeft()<0?o:{frameSize:a,asset:{sampleRate:m,numberOfChannels:p,sampleCount:Math.round(c*m/l),channelLayout:g,pcmResolution:f}}},ii=e=>ne(e)+ne(44646&e),ri=["avc","hevc","vp9","av1","vp8","prores"],ni=["pcm-s16","pcm-s16be","pcm-s24","pcm-s24be","pcm-s32","pcm-s32be","pcm-f32","pcm-f32be","pcm-f64","pcm-f64be","pcm-u8","pcm-s8","ulaw","alaw"],si=["aac","opus","mp3","vorbis","flac","ac3","eac3","dts",...ni],ai=[{maxMacroblocks:99,maxBitrate:64e3,maxDpbMbs:396,level:10},{maxMacroblocks:396,maxBitrate:192e3,maxDpbMbs:900,level:11},{maxMacroblocks:396,maxBitrate:384e3,maxDpbMbs:2376,level:12},{maxMacroblocks:396,maxBitrate:768e3,maxDpbMbs:2376,level:13},{maxMacroblocks:396,maxBitrate:2e6,maxDpbMbs:2376,level:20},{maxMacroblocks:792,maxBitrate:4e6,maxDpbMbs:4752,level:21},{maxMacroblocks:1620,maxBitrate:4e6,maxDpbMbs:8100,level:22},{maxMacroblocks:1620,maxBitrate:1e7,maxDpbMbs:8100,level:30},{maxMacroblocks:3600,maxBitrate:14e6,maxDpbMbs:18e3,level:31},{maxMacroblocks:5120,maxBitrate:2e7,maxDpbMbs:20480,level:32},{maxMacroblocks:8192,maxBitrate:2e7,maxDpbMbs:32768,level:40},{maxMacroblocks:8192,maxBitrate:5e7,maxDpbMbs:32768,level:41},{maxMacroblocks:8704,maxBitrate:5e7,maxDpbMbs:34816,level:42},{maxMacroblocks:22080,maxBitrate:135e6,maxDpbMbs:110400,level:50},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:51},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:52},{maxMacroblocks:139264,maxBitrate:24e7,maxDpbMbs:696320,level:60},{maxMacroblocks:139264,maxBitrate:48e7,maxDpbMbs:696320,level:61},{maxMacroblocks:139264,maxBitrate:8e8,maxDpbMbs:696320,level:62}],oi=[{maxPictureSize:36864,maxBitrate:2e5,level:10},{maxPictureSize:73728,maxBitrate:8e5,level:11},{maxPictureSize:122880,maxBitrate:18e5,level:20},{maxPictureSize:245760,maxBitrate:36e5,level:21},{maxPictureSize:552960,maxBitrate:72e5,level:30},{maxPictureSize:983040,maxBitrate:12e6,level:31},{maxPictureSize:2228224,maxBitrate:18e6,level:40},{maxPictureSize:2228224,maxBitrate:3e7,level:41},{maxPictureSize:8912896,maxBitrate:6e7,level:50},{maxPictureSize:8912896,maxBitrate:12e7,level:51},{maxPictureSize:8912896,maxBitrate:18e7,level:52},{maxPictureSize:35651584,maxBitrate:18e7,level:60},{maxPictureSize:35651584,maxBitrate:24e7,level:61},{maxPictureSize:35651584,maxBitrate:48e7,level:62}],li=".01.01.01.01.00",ci=".0.110.01.01.01.0",ui=["ap4x","ap4h","apch","apcn","apcs","apco"],di=["dtsc","dtsh","dtsl","dtse"],hi=e=>{const{codec:t,codecDescription:i,colorSpace:r,avcCodecInfo:n,hevcCodecInfo:s,vp9CodecInfo:a,av1CodecInfo:o,proresFormat:l}=e;if("avc"===t){if(y(null!==e.avcType),n){const t=new Uint8Array([n.avcProfileIndication,n.profileCompatibility,n.avcLevelIndication]);return`avc${e.avcType}.${z(t)}`}if(!i||i.byteLength<4)throw new TypeError("AVC decoder description is not provided or is not at least 4 bytes long.");return`avc${e.avcType}.${z(i.subarray(1,4))}`}if("hevc"===t){let e,t,r,n,a,o;if(s)e=s.generalProfileSpace,t=s.generalProfileIdc,r=U(s.generalProfileCompatibilityFlags),n=s.generalTierFlag,a=s.generalLevelIdc,o=[...s.generalConstraintIndicatorFlags];else{if(!i||i.byteLength<23)throw new TypeError("HEVC decoder description is not provided or is not at least 23 bytes long.");const s=I(i),l=s.getUint8(1);e=l>>6&3,t=31&l,r=U(s.getUint32(2)),n=l>>5&1,a=s.getUint8(12),o=[];for(let e=0;e<6;e++)o.push(s.getUint8(6+e))}let l="hev1.";for(l+=["","A","B","C"][e]+t,l+=".",l+=r.toString(16).toUpperCase(),l+=".",l+=0===n?"L":"H",l+=a;o.length>0&&0===o[o.length-1];)o.pop();return o.length>0&&(l+=".",l+=o.map(e=>e.toString(16).toUpperCase()).join(".")),l}if("vp8"===t)return"vp8";if("vp9"===t){if(!a){const t=e.width*e.height;let i=T(oi).level;for(const e of oi)if(t<=e.maxPictureSize){i=e.level;break}return`vp09.00.${i.toString().padStart(2,"0")}.08`}let t=`vp09.${a.profile.toString().padStart(2,"0")}.${a.level.toString().padStart(2,"0")}.${a.bitDepth.toString().padStart(2,"0")}.${a.chromaSubsampling.toString().padStart(2,"0")}`;return t+=`.${a.colourPrimaries.toString().padStart(2,"0")}.${a.transferCharacteristics.toString().padStart(2,"0")}.${a.matrixCoefficients.toString().padStart(2,"0")}.${a.videoFullRangeFlag.toString().padStart(2,"0")}`,t.endsWith(li)&&(t=t.slice(0,-15)),t}if("av1"===t){if(!o){const t=e.width*e.height;let i=T(oi).level;for(const e of oi)if(t<=e.maxPictureSize){i=e.level;break}return`av01.0.${i.toString().padStart(2,"0")}M.08`}const t=o.profile,i=o.level.toString().padStart(2,"0"),n=o.tier?"H":"M",s=o.bitDepth.toString().padStart(2,"0"),a=o.monochrome?"1":"0",l=100*o.chromaSubsamplingX+10*o.chromaSubsamplingY+1*(o.chromaSubsamplingX&&o.chromaSubsamplingY?o.chromaSamplePosition:0),c=(null==r?void 0:r.primaries)?B[r.primaries]:1,u=(null==r?void 0:r.transfer)?_[r.transfer]:1,d=(null==r?void 0:r.matrix)?F[r.matrix]:1,h=(null==r?void 0:r.fullRange)?1:0;let f=`av01.${t}.${i}${n}.${s}`;return f+=`.${a}.${l.toString().padStart(3,"0")}`,f+=`.${c.toString().padStart(2,"0")}`,f+=`.${u.toString().padStart(2,"0")}`,f+=`.${d.toString().padStart(2,"0")}`,f+=`.${h}`,f.endsWith(ci)&&(f=f.slice(0,-17)),f}if("prores"===t)return null!=l?l:"apch";throw null!==t&&$(t),new TypeError(`Unhandled codec '${t}'.`)},fi=e=>{var t,i,r,n,s,a;switch(e.codec){case"avc":{let r=null==(t=e.avcCodecInfo)?void 0:t.sequenceParameterSets[0];if(!r&&e.codecDescription&&(r=null==(i=ot(e.codecDescription))?void 0:i.sequenceParameterSets[0]),r){const e=ct(r);if(e)return{primaries:E[e.colourPrimaries],transfer:R[e.transferCharacteristics],matrix:A[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"hevc":{let t=null==(n=null==(r=e.hevcCodecInfo)?void 0:r.arrays.find(e=>e.nalUnitType===Ge.SPS_NUT))?void 0:n.nalUnits[0];if(!t&&e.codecDescription&&(t=null==(a=null==(s=(e=>{try{const t=I(e);let i=0;const r=t.getUint8(i++),n=t.getUint8(i++),s=n>>6&3,a=n>>5&1,o=31&n,l=t.getUint32(i,!1);i+=4;const c=e.subarray(i,i+6);i+=6;const u=t.getUint8(i++),d=(15&t.getUint8(i++))<<8|t.getUint8(i++),h=3&t.getUint8(i++),f=3&t.getUint8(i++),m=7&t.getUint8(i++),p=7&t.getUint8(i++),g=t.getUint16(i,!1);i+=2;const k=t.getUint8(i++),y=k>>6&3,b=k>>3&7,T=k>>2&1,v=3&k,S=t.getUint8(i++),w=[];for(let P=0;P>7&1,s=63&r,a=t.getUint16(i,!1);i+=2;const o=[];for(let l=0;le.nalUnitType===Ge.SPS_NUT))?void 0:a.nalUnits[0]),t){const e=mt(t);if(e)return{primaries:E[e.colourPrimaries],transfer:R[e.transferCharacteristics],matrix:A[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"vp8":break;case"vp9":if(e.vp9CodecInfo)return{primaries:E[e.vp9CodecInfo.colourPrimaries],transfer:R[e.vp9CodecInfo.transferCharacteristics],matrix:A[e.vp9CodecInfo.matrixCoefficients],fullRange:!!e.vp9CodecInfo.videoFullRangeFlag};break;case"av1":if(e.av1CodecInfo)return{primaries:E[e.av1CodecInfo.colourPrimaries],transfer:R[e.av1CodecInfo.transferCharacteristics],matrix:A[e.av1CodecInfo.matrixCoefficients],fullRange:!!e.av1CodecInfo.videoFullRangeFlag};break;case"prores":if(e.proresCodecInfo)return{primaries:E[e.proresCodecInfo.colourPrimaries],transfer:R[e.proresCodecInfo.transferCharacteristics],matrix:A[e.proresCodecInfo.matrixCoefficients],fullRange:e.proresCodecInfo.fullRange}}return{primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0}},mi=e=>{const{codec:t,codecDescription:i,aacCodecInfo:r,dtsFormat:n}=e;if("aac"===t){if(!r)throw new TypeError("AAC codec info must be provided.");if(r.isMpeg2)return"mp4a.67";{let e;if(null!==r.objectType)e=r.objectType;else{e=We(i).objectType}return`mp4a.40.${e}`}}if("mp3"===t)return"mp3";if("opus"===t)return"opus";if("vorbis"===t)return"vorbis";if("flac"===t)return"flac";if("ac3"===t)return"ac-3";if("eac3"===t)return"ec-3";if("dts"===t)return null!=n?n:"dtsc";if(t&&ni.includes(t))return t;throw new TypeError(`Unhandled codec '${t}'.`)},pi=48e3,gi=/^pcm-([usf])(\d+)(be)?$/,ki=e=>{if(y(ni.includes(e)),"ulaw"===e)return{dataType:"ulaw",sampleSize:1,littleEndian:!0,silentValue:255};if("alaw"===e)return{dataType:"alaw",sampleSize:1,littleEndian:!0,silentValue:213};const t=gi.exec(e);let i;y(t),i="u"===t[1]?"unsigned":"s"===t[1]?"signed":"float";return{dataType:i,sampleSize:Number(t[2])/8,littleEndian:"be"!==t[3],silentValue:"pcm-u8"===e?o(2,7):0}},yi=e=>e.startsWith("avc1")||e.startsWith("avc3")?"avc":e.startsWith("hev1")||e.startsWith("hvc1")?"hevc":"vp8"===e?"vp8":e.startsWith("vp09")?"vp9":e.startsWith("av01")?"av1":ui.includes(e)?"prores":"mp3"===e||"mp4a.69"===e||"mp4a.6B"===e||"mp4a.6b"===e||"mp4a.40.34"===e?"mp3":e.startsWith("mp4a.40.")||"mp4a.67"===e?"aac":"opus"===e?"opus":"vorbis"===e?"vorbis":"flac"===e?"flac":"ac-3"===e||"ac3"===e?"ac3":"ec-3"===e||"eac3"===e?"eac3":di.includes(e)?"dts":"ulaw"===e?"ulaw":"alaw"===e?"alaw":gi.test(e)?e:"webvtt"===e?"webvtt":null,bi=[44100,48e3,32e3],Ti=[-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],vi=1483304551,Si=1231971951,wi=(e,t)=>3===e?3===t?21:36:3===t?13:21,Pi=(e,t)=>{const i=e>>>24,r=e>>>16&255,n=e>>>8&255,s=255&e;if(255!==i&&255!==r&&255!==n&&255!==s)return{header:null,bytesAdvanced:4};if(255!==i)return{header:null,bytesAdvanced:1};if(224!==(224&r))return{header:null,bytesAdvanced:1};let a=0,o=0;16&r?a=8&r?0:1:(a=1,o=1);const l=r>>3&3,c=r>>1&3,u=(n>>2&3)%3,d=s>>6&3,h=s>>4&3,f=s>>3&1,m=s>>2&1,p=3&s,g=Ti[16*a*4+16*c+(n>>4&15)];if(-1===g)return{header:null,bytesAdvanced:1};const k=1e3*g,y=bi[u]>>a+o,b=((e,t,i,r,n)=>0===t?0:1===t?Math.floor(144*i/(r<>1&1);if(null!==t&&t{let t=2130706432,i=0;for(;0!==t;)i>>=1,i|=e&t,t>>=8;return i};var xi,Ci;(Ci=xi||(xi={}))[Ci.FrameCount=1]="FrameCount",Ci[Ci.FileSize=2]="FileSize",Ci[Ci.Toc=4]="Toc";const Bi=e=>3===e?1:2;class Ei{constructor(e){this.input=e}dispose(){}}const _i=new Uint8Array(0);class Ri{constructor(e,t,i,r,n=-1,s,a){if(this.data=e,this.type=t,this.timestamp=i,this.duration=r,this.sequenceNumber=n,e===_i&&void 0===s)throw new Error("Internal error: byteLength must be explicitly provided when constructing metadata-only packets.");if(void 0===s&&(s=e.byteLength),!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("key"!==t&&"delta"!==t)throw new TypeError('type must be either "key" or "delta".');if(!Number.isFinite(i))throw new TypeError("timestamp must be a number.");if(!Number.isFinite(r)||r<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(n))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(s)||s<0)throw new TypeError("byteLength must be a non-negative integer.");if(void 0!==a&&("object"!==typeof a||!a))throw new TypeError("sideData, when provided, must be an object.");if(void 0!==(null==a?void 0:a.alpha)&&!(a.alpha instanceof Uint8Array))throw new TypeError("sideData.alpha, when provided, must be a Uint8Array.");if(void 0!==(null==a?void 0:a.alphaByteLength)&&(!Number.isInteger(a.alphaByteLength)||a.alphaByteLength<0))throw new TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=s,this.sideData=null!=a?a:{},this.sideData.alpha&&void 0===this.sideData.alphaByteLength&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}get isMetadataOnly(){return this.data===_i}get microsecondTimestamp(){return Math.trunc(oe*this.timestamp)}get microsecondDuration(){return Math.trunc(oe*this.duration)}toEncodedVideoChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}alphaToEncodedVideoChunk(e=this.type){if(!this.sideData.alpha)throw new TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.sideData.alpha,type:e,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}toEncodedAudioChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to an audio chunk.");if("undefined"===typeof EncodedAudioChunk)throw new Error("EncodedAudioChunk is not available in this environment.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}static fromEncodedChunk(e,t){var i;if(!(e instanceof EncodedVideoChunk||e instanceof EncodedAudioChunk))throw new TypeError("chunk must be an EncodedVideoChunk or EncodedAudioChunk.");const r=new Uint8Array(e.byteLength);return e.copyTo(r),new Ri(r,e.type,e.timestamp/1e6,(null!=(i=e.duration)?i:0)/1e6,void 0,void 0,t)}clone(e){var t,i,r,n,s,a;if(void 0!==e&&("object"!==typeof e||null===e))throw new TypeError("options, when provided, must be an object.");if(void 0!==(null==e?void 0:e.data)&&!(e.data instanceof Uint8Array))throw new TypeError("options.data, when provided, must be a Uint8Array.");if(void 0!==(null==e?void 0:e.type)&&"key"!==e.type&&"delta"!==e.type)throw new TypeError('options.type, when provided, must be either "key" or "delta".');if(void 0!==(null==e?void 0:e.timestamp)&&!Number.isFinite(e.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(void 0!==(null==e?void 0:e.duration)&&!Number.isFinite(e.duration))throw new TypeError("options.duration, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sequenceNumber)&&!Number.isFinite(e.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sideData)&&("object"!==typeof e.sideData||null===e.sideData))throw new TypeError("options.sideData, when provided, must be an object.");return new Ri(null!=(t=null==e?void 0:e.data)?t:this.data,null!=(i=null==e?void 0:e.type)?i:this.type,null!=(r=null==e?void 0:e.timestamp)?r:this.timestamp,null!=(n=null==e?void 0:e.duration)?n:this.duration,null!=(s=null==e?void 0:e.sequenceNumber)?s:this.sequenceNumber,this.byteLength,null!=(a=null==e?void 0:e.sideData)?a:this.sideData)}}const Fi=e=>{const t=I(e);let i=0;const r=t.getUint8(i);i+=1,i+=3;const n=z(e.subarray(i,i+16));i+=16;let s=null;if(r>0){const r=t.getUint32(i);if(i+=4,r>0){s=[];for(let t=0;te.systemId===t.systemId&&((e,t)=>{if(e.length!==t.length)return!1;for(let i=0;i{let t=Lo(e);const i=Xo(e,4);let r=8;1===t&&(t=Wo(e),r=16);const n=t-r;return n<0?null:{name:i,totalSize:t,headerSize:r,contentSize:n}},Mi=e=>Uo(e)/65536,Ni=e=>Uo(e)/1073741824,Oi=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=Fo(e);if(t|=127&i,0===(128&i))break}return t},Li=e=>{let t=Do(e);return e.skip(2),t=Math.min(t,e.remainingLength),x.decode(Ro(e,t))},zi=e=>{const t=Di(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=Lo(e);e.skip(4);const r=Ro(e,t.contentSize-8);switch(i){case 1:return x.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new Ne(r,"image/jpeg");case 14:return new Ne(r,"image/png");case 27:return new Ne(r,"image/bmp");default:return r}},Ui=16,qi=new Uint32Array(256),Wi=new Uint32Array(256),Hi=new Uint32Array(256),Vi=new Uint32Array(256),ji=new Uint32Array(256),Ki=new Uint32Array(256),Xi=new Uint32Array(10);let $i=!1;class Gi{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(Ui/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(Ui),this.out=new Uint8Array(Ui),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){y(16===e.byteLength),y(16===t.byteLength),$i||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,a=1;s<256;s++)i[s]=a,t[a]=s,a=a^a<<1^(128&a?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let n=r^r<<1^r<<2^r<<3^r<<4;n=n>>>8^255&n^99,e[s]=n}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);qi[s]=t<<24|t<<16|t<<8|t,Ki[s]=i<<24|i<<16|i<<8|i;const n=r(i,14)<<24|r(i,9)<<16|r(i,13)<<8|r(i,11);Wi[s]=n,Hi[s]=n>>>8|n<<24,Vi[s]=n>>>16|n<<16,ji[s]=n>>>24|n<<8}let n=1;for(let s=0;s<10;s++)Xi[s]=n<<24,n=n<<1^(128&n?283:0);$i=!0})();const i=new DataView(e.buffer,e.byteOffset,e.byteLength),r=new DataView(t.buffer,t.byteOffset,t.byteLength);this.roundkey[0]=i.getUint32(0,!1),this.roundkey[1]=i.getUint32(4,!1),this.roundkey[2]=i.getUint32(8,!1),this.roundkey[3]=i.getUint32(12,!1),this.iv[0]=r.getUint32(0,!1),this.iv[1]=r.getUint32(4,!1),this.iv[2]=r.getUint32(8,!1),this.iv[3]=r.getUint32(12,!1);for(let n=4;n<44;n+=4){const e=this.roundkey[n-1];this.roundkey[n]=this.roundkey[n-4]^4278190080&qi[e>>>16&255]^16711680&qi[e>>>8&255]^65280&qi[e>>>0&255]^255&qi[e>>>24&255]^Xi[n/4-1],this.roundkey[n+1]=this.roundkey[n-3]^this.roundkey[n],this.roundkey[n+2]=this.roundkey[n-2]^this.roundkey[n+1],this.roundkey[n+3]=this.roundkey[n-1]^this.roundkey[n+2]}for(let n=0,s=40;n>>24&255]]^Hi[255&qi[t>>>16&255]]^Vi[255&qi[t>>>8&255]]^ji[255&qi[t>>>0&255]]}}decrypt(){let e=this.inView.getUint32(0,!1)^this.roundkey[0],t=this.inView.getUint32(4,!1)^this.roundkey[1],i=this.inView.getUint32(8,!1)^this.roundkey[2],r=this.inView.getUint32(12,!1)^this.roundkey[3];const n=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),a=this.inView.getUint32(8,!1),o=this.inView.getUint32(12,!1);let l,c,u,d;for(let g=1;g<10;g++){const n=4*g;l=Wi[e>>>24]^Hi[r>>>16&255]^Vi[i>>>8&255]^ji[255&t]^this.roundkey[n],c=Wi[t>>>24]^Hi[e>>>16&255]^Vi[r>>>8&255]^ji[255&i]^this.roundkey[n+1],u=Wi[i>>>24]^Hi[t>>>16&255]^Vi[e>>>8&255]^ji[255&r]^this.roundkey[n+2],d=Wi[r>>>24]^Hi[i>>>16&255]^Vi[t>>>8&255]^ji[255&e]^this.roundkey[n+3],e=l,t=c,i=u,r=d}const h=4278190080&Ki[e>>>24&255]^16711680&Ki[r>>>16&255]^65280&Ki[i>>>8&255]^255&Ki[t>>>0&255]^this.roundkey[40],f=4278190080&Ki[t>>>24&255]^16711680&Ki[e>>>16&255]^65280&Ki[r>>>8&255]^255&Ki[i>>>0&255]^this.roundkey[41],m=4278190080&Ki[i>>>24&255]^16711680&Ki[t>>>16&255]^65280&Ki[e>>>8&255]^255&Ki[r>>>0&255]^this.roundkey[42],p=4278190080&Ki[r>>>24&255]^16711680&Ki[i>>>16&255]^65280&Ki[t>>>8&255]^255&Ki[e>>>0&255]^this.roundkey[43];this.outView.setUint32(0,h^this.iv[0],!1),this.outView.setUint32(4,f^this.iv[1],!1),this.outView.setUint32(8,m^this.iv[2],!1),this.outView.setUint32(12,p^this.iv[3],!1),this.iv[0]=n,this.iv[1]=s,this.iv[2]=a,this.iv[3]=o}}class Qi extends Ei{constructor(e){super(e),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=e._reader}getTrackBackings(){return d(this,null,function*(){return yield this.readMetadata(),this.tracks.map(e=>e.trackBacking)})}getMimeType(){return d(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isQuickTime?"quicktime":"mp4");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)}),hasAudio:this.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)}),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return d(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>d(this,null,function*(){let e=0,t=!1,i=!1;for(;;){let r=this.reader.requestSliceRange(e,8,16);if(Te(r)&&(r=yield r),!r)break;const n=e,s=Di(r);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=Xo(r,4);this.isQuickTime="qt "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(r.filePos,s.contentSize);if(Te(e)&&(e=yield e),!e)break;this.moovSlice=e,this.readContiguousBoxes(this.moovSlice);for(const t of this.tracks){const e=t.editListPreviousSegmentDurations/this.movieTimescale;t.editListOffset-=Math.round(e*t.timescale)}t=this.isFragmented&&null!==this.reader.fileSize&&this.reader.fileSize>n+s.totalSize,i=!0;break}if("moof"===s.name){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');yield this.copyMetadataFromInitInput(this.input._initInput),t=!1,i=!0;break}}e=n+s.totalSize}if(!i&&this.input._initInput&&(yield this.copyMetadataFromInitInput(this.input._initInput)),t){y(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);Te(e)&&(e=yield e),y(e);const t=Lo(e),i=this.reader.fileSize-t;if(i>=0&&i<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(i,8,16);if(Te(e)&&(e=yield e),e){const t=Di(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);Te(i)&&(i=yield i),i&&this.readContiguousBoxes(i)}}}}}))()}copyMetadataFromInitInput(e){return d(this,null,function*(){const t=yield e._getDemuxer();if(t.constructor!==Qi)throw new Error("Init input must match the input's format.");yield t.readMetadata(),this.movieTimescale=t.movieTimescale,this.movieDurationInTimescale=t.movieDurationInTimescale,this.metadataTags=t.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=t.fragmentTrackDefaults,this.psshBoxes=t.psshBoxes;for(const e of t.tracks){const t={id:e.id,demuxer:this,trackBacking:null,disposition:e.disposition,timescale:e.timescale,durationInMediaTimescale:e.durationInMediaTimescale,durationInMovieTimescale:e.durationInMovieTimescale,rotation:e.rotation,internalCodecId:e.internalCodecId,name:e.name,languageCode:e.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:e.editListPreviousSegmentDurations,editListOffset:e.editListOffset,encryptionInfo:e.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:e.info};if(e.trackBacking)if(y(t.info),"video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new Ji(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new Zi(e),this.tracks.push(t)}}})}getSampleTableForTrack(e){var t,i;if(e.sampleTable)return e.sampleTable;const r={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=r,null===e.sampleTableByteOffset)return r;y(this.moovSlice);const n=this.moovSlice.slice(e.sampleTableByteOffset);this.currentTrack=e,this.traverseBox(n),this.currentTrack=null;if("audio"===(null==(t=e.info)?void 0:t.type)&&e.info.codec&&ni.includes(e.info.codec)&&0===r.sampleCompositionTimeOffsets.length){y("audio"===(null==(i=e.info)?void 0:i.type));const t=ki(e.info.codec),n=[],s=[];for(let i=0;ie.startIndex),u=r.sampleTimingEntries[c],d=W(r.sampleTimingEntries,l,e=>e.startIndex),h=r.sampleTimingEntries[d],f=u.startDecodeTimestamp+(o-u.startIndex)*u.delta,m=h.startDecodeTimestamp+(l-h.startIndex)*h.delta-f,p=T(n);p&&p.delta===m?p.count++:n.push({startIndex:a.startChunkIndex+i,startDecodeTimestamp:f,count:1,delta:m});const g=a.samplesPerChunk*t.sampleSize*e.info.numberOfChannels;s.push(g)}a.startSampleIndex=a.startChunkIndex,a.samplesPerChunk=1}r.sampleTimingEntries=n,r.sampleSizes=s}if(r.sampleCompositionTimeOffsets.length>0){r.presentationTimestamps=[];for(const e of r.sampleTimingEntries)for(let t=0;te.presentationTimestamp-t.presentationTimestamp),r.presentationTimestampIndexMap=Array(r.presentationTimestamps.length).fill(-1);for(let e=0;ee.moofOffset===s.moofOffset);if(r)nr(e,r.timestamp);else{const t=W(i,s.moofOffset-1,e=>e.moofOffset);if(-1!==t){const r=i[t];nr(e,r.endTimestamp)}}e.startTimestampIsFinal=!0}const r=W(i,e.startTimestamp,e=>e.startTimestamp);if(-1!==r&&i[r].moofOffset===s.moofOffset||i.splice(r+1,0,{moofOffset:s.moofOffset,startTimestamp:e.startTimestamp,endTimestamp:e.endTimestamp}),e.encryptionAuxInfo&&t.encryptionInfo){const i=yield lr(this.reader,t.encryptionInfo,e.encryptionAuxInfo);for(let t=0;t0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;ae(t.languageCode)||(t.languageCode=Z)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=Xo(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:c({},M),avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:"soun"===i&&(t.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const t=this.currentTrack;if(!t)break;t.sampleTableByteOffset=ge,this.readContiguousBoxes(e.slice(ye,ke.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=Fo(e);e.skip(3);const r=Lo(e);for(let n=0;n0&&(1===a?(e.skip(4),l=8*Lo(e),e.skip(8)):2===a&&(e.skip(4),c=Ko(e),o=Lo(e),e.skip(4),l=Lo(e),u=Lo(e),e.skip(8))),t.info.numberOfChannels=o,t.info.sampleRate=c,t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+n.totalSize-e.filePos));const d="enca"===s?t.frmaCodecString:s;if(t.frmaCodecString=null,"mp4a"===d);else if("opus"===d)t.info.codec="opus",t.info.sampleRate=pi;else if("flac"===d)t.info.codec="flac";else if("ulaw"===d)t.info.codec="ulaw";else if("alaw"===d)t.info.codec="alaw";else if("ac-3"===d)t.info.codec="ac3";else if("ec-3"===d)t.info.codec="eac3";else if(di.includes(d))t.info.codec="dts",t.info.dtsFormat=d;else if("twos"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec=t.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(Me._warn(`Unsupported sample size ${l} for codec 'twos'.`),t.info.codec=null);else if("sowt"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec="pcm-s16":(Me._warn(`Unsupported sample size ${l} for codec 'sowt'.`),t.info.codec=null);else if("raw "===d)t.info.codec="pcm-u8";else if("in24"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if("in32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if("fl32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if("fl64"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if("ipcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?16===e?t.info.codec="pcm-s16":24===e?t.info.codec="pcm-s24":32===e?t.info.codec="pcm-s32":(Me._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null):16===e?t.info.codec="pcm-s16be":24===e?t.info.codec="pcm-s24be":32===e?t.info.codec="pcm-s32be":(Me._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null)}else if("fpcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?32===e?t.info.codec="pcm-f32":64===e?t.info.codec="pcm-f64":(Me._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(Me._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===d&&null!==u){const e=l+7>>3,i=Boolean(1&u),r=Boolean(2&u),n=4&u?-1:0;l>0&&l<=64&&(i?32===l&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):n&1<0?(t.encryptionInfo.defaultCryptByteBlock=r>>4,t.encryptionInfo.defaultSkipByteBlock=15&r):(t.encryptionInfo.defaultCryptByteBlock=0,t.encryptionInfo.defaultSkipByteBlock=0),t.encryptionInfo.defaultIsProtected=0!==Fo(e),t.encryptionInfo.defaultPerSampleIvSize=Fo(e),t.encryptionInfo.defaultKid=z(Ro(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=Fo(e),r=new Uint8Array(16);r.set(Ro(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(y(t.info),0===ke.contentSize)break;t.info.codecDescription=Ro(e,ke.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(y(t.info),0===ke.contentSize)break;t.info.codecDescription=Ro(e,ke.contentSize)}break;case"vpcC":{const i=this.currentTrack;if(!i)break;y("video"===(null==(t=i.info)?void 0:t.type)),e.skip(4);const r=Fo(e),n=Fo(e),s=Fo(e),a=s>>4,o=s>>1&7,l=1&s,c=Fo(e),u=Fo(e),d=Fo(e);i.info.vp9CodecInfo={profile:r,level:n,bitDepth:a,chromaSubsampling:o,videoFullRangeFlag:l,colourPrimaries:c,transferCharacteristics:u,matrixCoefficients:d}}break;case"av1C":{const t=this.currentTrack;if(!t)break;y("video"===(null==(i=t.info)?void 0:i.type)),e.skip(1);const o=Fo(e),l=o>>5,c=31&o,u=Fo(e),d=u>>7,h=u>>6&1,f=u>>4&1,m=u>>3&1,p=u>>2&1,g=3&u,k=2===l&&h?u>>5&1?12:10:h?10:8;e.skip(1);const b=Ro(e,ke.contentSize-4),T=Et(b);t.info.av1CodecInfo={profile:l,level:c,tier:d,bitDepth:k,monochrome:f,chromaSubsamplingX:m,chromaSubsamplingY:p,chromaSamplePosition:g,videoFullRangeFlag:null!=(r=null==T?void 0:T.videoFullRangeFlag)?r:0,colourPrimaries:null!=(n=null==T?void 0:T.colourPrimaries)?n:2,transferCharacteristics:null!=(s=null==T?void 0:T.transferCharacteristics)?s:2,matrixCoefficients:null!=(a=null==T?void 0:T.matrixCoefficients)?a:2}}break;case"colr":{const t=this.currentTrack;if(!t)break;y("video"===(null==(o=t.info)?void 0:o.type));const i=Xo(e,4);if("nclx"!==i&&"nclc"!==i)break;const r=Do(e),n=Do(e),s=Do(e);let a;"nclx"===i&&(a=Boolean(128&Fo(e))),t.info.colorSpace={primaries:E[r],transfer:R[n],matrix:A[s],fullRange:a}}break;case"pasp":{const t=this.currentTrack;if(!t)break;y("video"===(null==(l=t.info)?void 0:l.type));const i=Lo(e),r=Lo(e);i>0&&r>0&&(i>r?t.info.squarePixelWidth=Math.round(t.info.width*i/r):t.info.squarePixelHeight=Math.round(t.info.height*r/i))}break;case"esds":{const t=this.currentTrack;if(!t||"audio"!==(null==(d=t.info)?void 0:d.type))break;e.skip(4);y(3===Fo(e)),Oi(e),e.skip(2);const i=Fo(e),r=0!==(64&i),n=0!==(32&i);if(0!==(128&i)&&e.skip(2),r){const t=Fo(e);e.skip(t)}n&&e.skip(2);y(4===Fo(e));const s=Oi(e),a=e.filePos,o=Fo(e);if(64===o||103===o?(t.info.codec="aac",t.info.aacCodecInfo={isMpeg2:103===o,objectType:null}):105===o||107===o?t.info.codec="mp3":221===o?t.info.codec="vorbis":169===o?t.info.codec="dts":Me._warn(`Unsupported audio codec (objectTypeIndication ${o}) - discarding track.`),e.skip(12),s>e.filePos-a){y(5===Fo(e));const i=Oi(e);if(t.info.codecDescription=Ro(e,i),"aac"===t.info.codec){const e=We(t.info.codecDescription);null!==e.outputNumberOfChannels&&(t.info.numberOfChannels=e.outputNumberOfChannels),null!==e.outputSampleRate&&(t.info.sampleRate=e.outputSampleRate)}}}break;case"enda":{const t=this.currentTrack;if(!t)break;y("audio"===(null==(h=t.info)?void 0:h.type)),t.info.pcmLittleEndian=!!(255&Do(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;y("audio"===(null==(f=t.info)?void 0:f.type)),e.skip(4);const i=Fo(e);t.info.pcmLittleEndian=Boolean(1&i),t.info.pcmSampleSize=Fo(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;y("audio"===(null==(m=t.info)?void 0:m.type)),e.skip(1);const i=Fo(e),r=Do(e),n=Lo(e),s=No(e),a=Fo(e);let o;o=0!==a?Ro(e,2+i):new Uint8Array(0);const l=new Uint8Array(19+o.byteLength),c=new DataView(l.buffer);c.setUint32(0,1332770163,!1),c.setUint32(4,1214603620,!1),c.setUint8(8,1),c.setUint8(9,i),c.setUint16(10,r,!0),c.setUint32(12,n,!0),c.setInt16(16,s,!0),c.setUint8(18,a),l.set(o,19),t.info.codecDescription=l,t.info.numberOfChannels=i}break;case"dfLa":{const t=this.currentTrack;if(!t)break;y("audio"===(null==(p=t.info)?void 0:p.type)),e.skip(4);const i=127,r=128,n=e.filePos;for(;e.filePos>>12,n=1+(i>>9&7);t.info.sampleRate=r,t.info.numberOfChannels=n,e.skip(20)}else e.skip(s);if(n&r)break}const s=e.filePos;e.filePos=n;const a=Ro(e,s-n),o=new Uint8Array(4+a.byteLength);new DataView(o.buffer).setUint32(0,1716281667,!1),o.set(a,4),t.info.codecDescription=o}break;case"dac3":{const t=this.currentTrack;if(!t)break;y("audio"===(null==(g=t.info)?void 0:g.type));const i=Ro(e,3),r=new ze(i),n=r.readBits(2);r.skipBits(8);const s=r.readBits(3),a=r.readBits(1);n<3&&(t.info.sampleRate=je[n]),t.info.numberOfChannels=Ot[s]+a}break;case"dec3":{const t=this.currentTrack;if(!t)break;y("audio"===(null==(k=t.info)?void 0:k.type));const i=(e=>{if(e.length<2)return null;const t=new ze(e),i=t.readBits(13),r=t.readBits(3),n=[];for(let s=0;s<=r&&!(Math.ceil(t.pos/8)+3>e.length);s++){const e=t.readBits(2),i=t.readBits(5);t.skipBits(1),t.skipBits(1);const r=t.readBits(3),s=t.readBits(3),a=t.readBits(1);t.skipBits(3);const o=t.readBits(4);let l=0;o>0?l=t.readBits(9):t.skipBits(1),n.push({fscod:e,fscod2:null,bsid:i,bsmod:r,acmod:s,lfeon:a,numDepSub:o,chanLoc:l})}return 0===n.length?null:{dataRate:i,substreams:n}})(Ro(e,ke.contentSize));if(!i){Me._warn("Invalid dec3 box contents, ignoring.");break}const r=Wt(i);null!==r&&(t.info.sampleRate=r),t.info.numberOfChannels=Ht(i)}break;case"ddts":{const t=this.currentTrack;if(!t)break;y("audio"===(null==(v=t.info)?void 0:v.type));const i=(e=>{if(e.length<20)return null;const t=I(e),i=t.getUint32(0);if(0===i)return null;const r=new ze(e);r.seekToByte(13);const n=r.readBits(2);r.skipBits(5);const s=r.readBits(1),a=r.readBits(6);r.skipBits(14),r.skipBits(1),r.skipBits(3);const o=r.readBits(16);let l=null;return 0!==o?l=ii(o):ae.id===i);if(!r)break;const n=Lo(e),s=(12&n)>>2,a=3&n,o=[Fo,Do,Mo,Lo],l=o[(48&n)>>4],c=o[s],u=o[a],d=Lo(e);for(let h=0;he.timestamp-t.timestamp);for(let e=0;e({presentationTimestamp:e.presentationTimestamp,sampleIndex:t})).sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp);for(let n=0;ne.id===c);if(!u)break;const d=this.fragmentTrackDefaults.find(e=>e.trackId===c);this.currentTrack=u,u.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:null!=(w=null==d?void 0:d.defaultSampleDescriptionIndex)?w:null,defaultSampleDuration:null!=(P=null==d?void 0:d.defaultSampleDuration)?P:null,defaultSampleSize:null!=(C=null==d?void 0:d.defaultSampleSize)?C:null,defaultSampleFlags:null!=(B=null==d?void 0:d.defaultSampleFlags)?B:null,startTimestamp:null,encryptionAuxInfo:null},i?u.currentFragmentState.baseDataOffset=Wo(e):l&&(u.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),r&&(u.currentFragmentState.sampleDescriptionIndex=Lo(e)),n&&(u.currentFragmentState.defaultSampleDuration=Lo(e)),s&&(u.currentFragmentState.defaultSampleSize=Lo(e)),a&&(u.currentFragmentState.defaultSampleFlags=Lo(e)),o&&(u.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;y(t.currentFragmentState);const i=Fo(e);e.skip(3);const r=0===i?Lo(e):Wo(e);t.currentFragmentState.startTimestamp=r}break;case"trun":{const t=this.currentTrack;if(!t)break;y(this.currentFragment),y(t.currentFragmentState);const i=Fo(e),r=Mo(e),n=Boolean(1&r),s=Boolean(4&r),a=Boolean(256&r),o=Boolean(512&r),l=Boolean(1024&r),c=Boolean(2048&r),u=Lo(e);let d=null;n&&(d=Uo(e));let h,f=null;s&&(f=Lo(e)),this.currentFragment.trackData.has(t.id)?(h=this.currentFragment.trackData.get(t.id),null!==d&&(h.currentOffset=t.currentFragmentState.baseDataOffset+d)):(h={track:t,currentTimestamp:0,currentOffset:t.currentFragmentState.baseDataOffset+(null!=d?d:0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(t.id,h));for(let m=0;m0&&(n=Ro(e,r));const s=or(t);s.defaultSampleInfoSize=i,s.sampleSizes=n,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=Fo(e);if(1&Mo(e)){const i=Xo(e,4),r=Lo(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=Lo(e);if(0===r)break;r>1&&Me._warn("Multiple saio entries are not supported; using the first offset only.");let n=0===i?Lo(e):Number(Wo(e));this.currentFragment&&(n+=this.currentFragment.moofOffset);or(t).offset=n}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;y(this.currentFragment);const i=this.currentFragment.trackData.get(t.id);if(!i)break;e.skip(1);const r=Mo(e),n=Boolean(2&r),s=Lo(e),a=t.encryptionInfo.defaultPerSampleIvSize;y(null!==a);for(let o=0;o0?r.set(Ro(e,a),0):r.set(t.encryptionInfo.defaultConstantIv,0);let s=null;if(n){const t=Do(e);s=[];for(let i=0;i0&&(null!=(ue=this.metadataTags).trackNumber||(ue.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(de=this.metadataTags).tracksTotal||(de.tracksTotal=i))}break;case"trkn":if(n instanceof Uint8Array&&n.length>=6){const e=I(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(he=this.metadataTags).trackNumber||(he.trackNumber=t)),i>0&&(null!=(fe=this.metadataTags).tracksTotal||(fe.tracksTotal=i))}break;case"disc":case"disk":if(n instanceof Uint8Array&&n.length>=6){const e=I(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(me=this.metadataTags).discNumber||(me.discNumber=t)),i>0&&(null!=(pe=this.metadataTags).discsTotal||(pe.discsTotal=i))}}}}}return e.filePos=be,!0}}class Yi{constructor(e){this.internalTrack=e,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.tracks)if(r.trackBacking.getType()===t&&i++,r===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return d(this,null,function*(){var e;const t=this.internalTrack;if(t.durationInMediaTimescale<=0)return null;y(t.trackBacking);const i=yield t.trackBacking.getFirstPacket({metadataOnly:!0});return(null!=(e=null==i?void 0:i.timestamp)?e:0)+t.durationInMediaTimescale/t.timescale})}getLiveRefreshInterval(){return d(this,null,function*(){return null})}getFirstPacket(e){return d(this,null,function*(){const t=yield this.fetchPacketForSampleIndex(0,e);return t||!this.internalTrack.demuxer.isFragmented?t:this.performFragmentedLookup(null,e=>e.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,e)})}mapTimestampIntoTimescale(e){return ee(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}getPacket(e,t){return d(this,null,function*(){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),n=er(r,i),s=yield this.fetchPacketForSampleIndex(n,t);return ar(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=W(t.presentationTimestamps,i,e=>e.presentationTimestamp);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id);if(r.sampleIndex+1{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=X(t.presentationTimestamps,e=>t.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=i);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id).samples.findIndex((e,t)=>e.isKeyFrame&&t>r.sampleIndex);if(-1!==t)return{sampleIndex:t,correctSampleFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.samples.findIndex(e=>e.isKeyFrame);return y(-1!==e),{sampleIndex:e,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)})}fetchPacketForSampleIndex(e,t){return d(this,null,function*(){if(-1===e)return null;const i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=ir(i,e);if(!r)return null;let n;if(t.metadataOnly)n=_i;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(Te(t)&&(t=yield t),!t)return null;if(n=Ro(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=yield lr(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);ee.timestamp),f=-1!==h?this.internalTrack.fragmentLookupTable[h]:null,m=W(this.internalTrack.fragmentPositionCache,i,e=>e.startTimestamp),p=-1!==m?this.internalTrack.fragmentPositionCache[m]:null,g=Math.max(null!=(s=null==f?void 0:f.moofOffset)?s:0,null!=(a=null==p?void 0:p.moofOffset)?a:0)||null;let k;for(e?null===g||e.moofOffset>=g?(k=e.moofOffset+e.moofSize,c=e):k=g:k=null!=g?g:0;;){if(c){const e=c.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=l.reader.requestSliceRange(k,8,16);if(Te(e)&&(e=yield e),!e)break;const i=k,s=Di(e);if(!s)break;if("moof"===s.name){c=yield l.readFragment(i);const{sampleIndex:e,correctSampleFound:r}=t(c);if(r)return this.fetchPacketInFragment(c,e,n);-1!==e&&(u=c,d=e)}k=i+s.totalSize}if(f&&(!u||u.moofOffsetd(this,null,function*(){var e,t,i,r,n,s,a;if("avc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("hevc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("vp9"!==this.internalTrack.info.codec||this.internalTrack.info.vp9CodecInfo&&(2!==(a=this.internalTrack.info.vp9CodecInfo).colourPrimaries||2!==a.transferCharacteristics||2!==a.matrixCoefficients))if("av1"!==this.internalTrack.info.codec||this.internalTrack.info.av1CodecInfo&&(e=>2!==e.colourPrimaries||2!==e.transferCharacteristics||2!==e.matrixCoefficients)(this.internalTrack.info.av1CodecInfo)){if("prores"===this.internalTrack.info.codec&&!this.internalTrack.info.proresCodecInfo){const e=yield this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=e&&_t(e.data)}}else{const e=yield this.getFirstPacket({}),t=e&&Et(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const t=yield this.getFirstPacket({}),i=t&&Ct(t.data);i&&(this.internalTrack.info.vp9CodecInfo=u(c({},null!=(e=this.internalTrack.info.vp9CodecInfo)?e:i),{videoFullRangeFlag:i.videoFullRangeFlag,colourPrimaries:i.colourPrimaries,transferCharacteristics:i.transferCharacteristics,matrixCoefficients:i.matrixCoefficients}))}else{const e=yield this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=e&&pt(e.data)}else{const e=yield this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&st(e.data)}if(!D(this.internalTrack.info.colorSpace)){const e=fi(this.internalTrack.info);null!=(t=this.internalTrack.info.colorSpace).primaries||(t.primaries=e.primaries),null!=(i=this.internalTrack.info.colorSpace).transfer||(i.transfer=e.transfer),null!=(r=this.internalTrack.info.colorSpace).matrix||(r.matrix=e.matrix),null!=(n=this.internalTrack.info.colorSpace).fullRange||(n.fullRange=e.fullRange)}const o={codec:hi(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(s=this.internalTrack.info.codecDescription)?s:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class Zi extends Yi{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return d(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>d(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Zt(e.data)}return{codec:mi(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const er=(e,t)=>{if(e.presentationTimestamps){const i=W(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=W(e.sampleTimingEntries,t,e=>e.startDecodeTimestamp);if(-1===i)return-1;const r=e.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},tr=(e,t)=>{var i;if(!e.keySampleIndices)return er(e,t);if(e.presentationTimestamps){const i=W(e.presentationTimestamps,t,e=>e.presentationTimestamp);if(-1===i)return-1;for(let t=i;t>=0;t--){const i=e.presentationTimestamps[t].sampleIndex;if(-1!==q(e.keySampleIndices,i,e=>e))return i}return-1}{const r=er(e,t),n=W(e.keySampleIndices,r,e=>e);return null!=(i=e.keySampleIndices[n])?i:-1}},ir=(e,t)=>{const i=W(e.sampleTimingEntries,t,e=>e.startIndex),r=e.sampleTimingEntries[i];if(!r||r.startIndex+r.count<=t)return null;let n=r.startDecodeTimestamp+(t-r.startIndex)*r.delta;const s=W(e.sampleCompositionTimeOffsets,t,e=>e.startIndex),a=e.sampleCompositionTimeOffsets[s];a&&t-a.startIndexe.startSampleIndex),c=e.sampleToChunk[l];y(c);const u=c.startChunkIndex+Math.floor((t-c.startSampleIndex)/c.samplesPerChunk),d=e.chunkOffsets[u],h=c.startSampleIndex+(u-c.startChunkIndex)*c.samplesPerChunk;let f=0,m=d;if(1===e.sampleSizes.length)m+=o*(t-h),f+=o*c.samplesPerChunk;else for(let g=h;ge)}},rr=(e,t)=>{var i;if(!e.keySampleIndices)return t+1;const r=W(e.keySampleIndices,t,e=>e);return null!=(i=e.keySampleIndices[r+1])?i:-1},nr=(e,t)=>{e.startTimestamp+=t,e.endTimestamp+=t;for(const i of e.samples)i.presentationTimestamp+=t;for(const i of e.presentationTimestamps)i.presentationTimestamp+=t},sr=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},ar=e=>0===e.sampleSizes.length,or=e=>{var t,i,r;return e.currentFragmentState?null!=(i=(t=e.currentFragmentState).encryptionAuxInfo)?i:t.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}:null!=(r=e.encryptionAuxInfo)?r:e.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}},lr=(e,t,i)=>d(null,null,function*(){if(i.resolved)return i.resolved;if(null===i.offset||0===i.sampleCount)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let r=0;if(i.defaultSampleInfoSize>0)r=i.defaultSampleInfoSize*i.sampleCount;else{y(i.sampleSizes);for(let e=0;e0?i.defaultSampleInfoSize:i.sampleSizes[e],o=new Uint8Array(16);s>0?o.set(Ro(n,s),0):o.set(t.defaultConstantIv,0);let l=null;if(r>s){const e=Do(n);l=[];for(let t=0;te.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,ur=(e,t,i,r)=>d(null,null,function*(){var n;y(e.encryptionInfo);const s=e.encryptionInfo;y(null!==s.defaultKid);const a=s.defaultKid;let o;const l=e.demuxer.decryptionKeyCache.get(a);if(l)o=yield l;else{if(!(null==(n=e.demuxer.input._formatOptions.isobmff)?void 0:n.resolveKeyId))throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const t=d(null,null,function*(){let t=e.demuxer.psshBoxes;if(r){t=[...t,...r.psshBoxes].filter(e=>null===e.keyIds||e.keyIds.includes(a));for(let e=0;e{y(e.length%2===0);const t=new Uint8Array(e.length/2);for(let i=0;id(null,null,function*(){const n=new Uint8Array(16);n.set(i.iv,0);const s=yield crypto.subtle.importKey("raw",e,{name:"AES-CTR"},!1,["decrypt"]),a=e=>d(null,null,function*(){const t=yield crypto.subtle.decrypt({name:"AES-CTR",counter:n,length:64},s,e);return new Uint8Array(t)});if(!i.subsamples)return a(r);y(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const o=fr(i.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock);let l=0;for(const e of o)for(const t of e.perSubsample)l+=t.length;const c=new Uint8Array(l);let u=0;for(const e of o)for(const t of e.perSubsample)c.set(r.subarray(t.offset,t.offset+t.length),u),u+=t.length;const h=yield a(c),f=new Uint8Array(r);let m=0;for(const e of o)for(const t of e.perSubsample)f.set(h.subarray(m,m+t.length),t.offset),m+=t.length;return f}),hr=(e,t,i,r)=>{const n=new Gi;n.init({key:e,iv:i.iv});const s=t.defaultCryptByteBlock,a=t.defaultSkipByteBlock;if(y(null!==s&&null!==a),!i.subsamples){const e=new Uint8Array(r),t=Math.floor(r.length/16);for(let i=0;i{const r=[],n=0!==t||0!==i;let s=0;for(const a of e){s+=a.clearLen;const e=[];if(n){let r=a.protectedLen,n=s;for(;r>0&&!(r<16*t);){const s=16*t;e.push({offset:n,length:s}),n+=s,r-=s;const a=Math.min(16*i,r);n+=a,r-=a}s+=a.protectedLen}else a.protectedLen>0&&e.push({offset:s,length:a.protectedLen}),s+=a.protectedLen;r.push({perSubsample:e})}return r};var mr,pr;(pr=mr||(mr={}))[pr.EBML=440786851]="EBML",pr[pr.EBMLVersion=17030]="EBMLVersion",pr[pr.EBMLReadVersion=17143]="EBMLReadVersion",pr[pr.EBMLMaxIDLength=17138]="EBMLMaxIDLength",pr[pr.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",pr[pr.DocType=17026]="DocType",pr[pr.DocTypeVersion=17031]="DocTypeVersion",pr[pr.DocTypeReadVersion=17029]="DocTypeReadVersion",pr[pr.Void=236]="Void",pr[pr.Segment=408125543]="Segment",pr[pr.SeekHead=290298740]="SeekHead",pr[pr.Seek=19899]="Seek",pr[pr.SeekID=21419]="SeekID",pr[pr.SeekPosition=21420]="SeekPosition",pr[pr.Duration=17545]="Duration",pr[pr.Info=357149030]="Info",pr[pr.TimestampScale=2807729]="TimestampScale",pr[pr.MuxingApp=19840]="MuxingApp",pr[pr.WritingApp=22337]="WritingApp",pr[pr.Tracks=374648427]="Tracks",pr[pr.TrackEntry=174]="TrackEntry",pr[pr.TrackNumber=215]="TrackNumber",pr[pr.TrackUID=29637]="TrackUID",pr[pr.TrackType=131]="TrackType",pr[pr.FlagEnabled=185]="FlagEnabled",pr[pr.FlagDefault=136]="FlagDefault",pr[pr.FlagForced=21930]="FlagForced",pr[pr.FlagOriginal=21934]="FlagOriginal",pr[pr.FlagHearingImpaired=21931]="FlagHearingImpaired",pr[pr.FlagVisualImpaired=21932]="FlagVisualImpaired",pr[pr.FlagCommentary=21935]="FlagCommentary",pr[pr.FlagLacing=156]="FlagLacing",pr[pr.Name=21358]="Name",pr[pr.Language=2274716]="Language",pr[pr.LanguageBCP47=2274717]="LanguageBCP47",pr[pr.CodecID=134]="CodecID",pr[pr.CodecPrivate=25506]="CodecPrivate",pr[pr.CodecDelay=22186]="CodecDelay",pr[pr.SeekPreRoll=22203]="SeekPreRoll",pr[pr.DefaultDuration=2352003]="DefaultDuration",pr[pr.Video=224]="Video",pr[pr.PixelWidth=176]="PixelWidth",pr[pr.PixelHeight=186]="PixelHeight",pr[pr.DisplayWidth=21680]="DisplayWidth",pr[pr.DisplayHeight=21690]="DisplayHeight",pr[pr.DisplayUnit=21682]="DisplayUnit",pr[pr.AlphaMode=21440]="AlphaMode",pr[pr.Audio=225]="Audio",pr[pr.SamplingFrequency=181]="SamplingFrequency",pr[pr.Channels=159]="Channels",pr[pr.BitDepth=25188]="BitDepth",pr[pr.SimpleBlock=163]="SimpleBlock",pr[pr.BlockGroup=160]="BlockGroup",pr[pr.Block=161]="Block",pr[pr.BlockAdditions=30113]="BlockAdditions",pr[pr.BlockMore=166]="BlockMore",pr[pr.BlockAdditional=165]="BlockAdditional",pr[pr.BlockAddID=238]="BlockAddID",pr[pr.BlockDuration=155]="BlockDuration",pr[pr.ReferenceBlock=251]="ReferenceBlock",pr[pr.Cluster=524531317]="Cluster",pr[pr.Timestamp=231]="Timestamp",pr[pr.Cues=475249515]="Cues",pr[pr.CuePoint=187]="CuePoint",pr[pr.CueTime=179]="CueTime",pr[pr.CueTrackPositions=183]="CueTrackPositions",pr[pr.CueTrack=247]="CueTrack",pr[pr.CueClusterPosition=241]="CueClusterPosition",pr[pr.Colour=21936]="Colour",pr[pr.MatrixCoefficients=21937]="MatrixCoefficients",pr[pr.TransferCharacteristics=21946]="TransferCharacteristics",pr[pr.Primaries=21947]="Primaries",pr[pr.Range=21945]="Range",pr[pr.Projection=30320]="Projection",pr[pr.ProjectionType=30321]="ProjectionType",pr[pr.ProjectionPoseRoll=30325]="ProjectionPoseRoll",pr[pr.Attachments=423732329]="Attachments",pr[pr.AttachedFile=24999]="AttachedFile",pr[pr.FileDescription=18046]="FileDescription",pr[pr.FileName=18030]="FileName",pr[pr.FileMediaType=18016]="FileMediaType",pr[pr.FileData=18012]="FileData",pr[pr.FileUID=18094]="FileUID",pr[pr.Chapters=272869232]="Chapters",pr[pr.Tags=307544935]="Tags",pr[pr.Tag=29555]="Tag",pr[pr.Targets=25536]="Targets",pr[pr.TargetTypeValue=26826]="TargetTypeValue",pr[pr.TargetType=25546]="TargetType",pr[pr.TagTrackUID=25541]="TagTrackUID",pr[pr.TagEditionUID=25545]="TagEditionUID",pr[pr.TagChapterUID=25540]="TagChapterUID",pr[pr.TagAttachmentUID=25542]="TagAttachmentUID",pr[pr.SimpleTag=26568]="SimpleTag",pr[pr.TagName=17827]="TagName",pr[pr.TagLanguage=17530]="TagLanguage",pr[pr.TagString=17543]="TagString",pr[pr.TagBinary=17541]="TagBinary",pr[pr.ContentEncodings=28032]="ContentEncodings",pr[pr.ContentEncoding=25152]="ContentEncoding",pr[pr.ContentEncodingOrder=20529]="ContentEncodingOrder",pr[pr.ContentEncodingScope=20530]="ContentEncodingScope",pr[pr.ContentCompression=20532]="ContentCompression",pr[pr.ContentCompAlgo=16980]="ContentCompAlgo",pr[pr.ContentCompSettings=16981]="ContentCompSettings",pr[pr.ContentEncryption=20533]="ContentEncryption";const gr=[mr.EBML,mr.Segment],kr=[mr.SeekHead,mr.Info,mr.Cluster,mr.Tracks,mr.Cues,mr.Attachments,mr.Chapters,mr.Tags],yr=[...gr,...kr],br=16,Tr=e=>{if(e.remainingLength<1)return null;const t=Fo(e);if(e.skip(-1),0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;return e.remainingLength{if(e.remainingLength<1)return null;const t=Fo(e);if(0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;if(e.remainingLength{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let i=0;for(let r=0;r{const t=Tr(e);if(null===t)return null;if(e.remainingLength{if(e.remainingLength<1)return null;if(255===Fo(e))return;e.skip(-1);const t=vr(e);return null===t?null:72057594037927940!==t?t:void 0},Ir=e=>{y(e.remainingLength>=2);const t=wr(e);if(null===t)return null;const i=Pr(e);return null===i?null:{id:t,size:i}},xr=(e,t)=>{const i=Ro(e,t);let r=0;for(;r{const i=Ro(e,t);let r=0;for(;r{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?jo(e):Ko(e)},Er=(e,t,i,r)=>d(null,null,function*(){const n=new Set(i);let s=t;for(;null===r||ss?r:s,found:!1}}),_r=(e,t,i,r)=>d(null,null,function*(){const n=o(2,16),s=new Set(i);let a=t;for(;ae.tracks.map(e=>e.trackBacking))})}getMimeType(){return d(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings.filter(Boolean))].join(", ")}"`);return t})({isWebM:this.isWebM,hasVideo:this.segments.some(e=>e.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)})),hasAudio:this.segments.some(e=>e.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)})),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return d(this,null,function*(){yield this.readMetadata();for(const t of this.segments)t.metadataTagsCollected||(null!==this.reader.fileSize&&(yield this.loadSegmentMetadata(t)),t.metadataTagsCollected=!0);let e={};for(const t of this.segments)e=c(c({},e),t.metadataTags);return e})}readMetadata(){var e;return null!=(e=this.readMetadataPromise)?e:this.readMetadataPromise=(()=>d(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,2,br);if(Te(t)&&(t=yield t),!t)break;const i=Ir(t);if(!i)break;const r=i.id;let n=i.size;const s=t.filePos;if(r===mr.EBML){jr(n);let e=this.reader.requestSlice(s,n);if(Te(e)&&(e=yield e),!e)break;this.readContiguousElements(e)}else if(r===mr.Segment){if(yield this.readSegment(s,n),void 0===n)break;if(null===this.reader.fileSize)break}else if(r===mr.Cluster){if(null===this.reader.fileSize)break;if(void 0===n){n=(yield Er(this.reader,s,yr,this.reader.fileSize)).pos-s}const e=T(this.segments);e&&(e.elementEndPos=s+n)}jr(n),e=s+n}}))()}readSegment(e,t){return d(this,null,function*(){var i;this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:void 0===t?null:e+t,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let r=e;for(;null===this.currentSegment.elementEndPos||re.id===s);if(-1!==l){const e=Jr[l].flag;this.currentSegment[e]=!0,jr(a);let t=this.reader.requestSlice(o,a);Te(t)&&(t=yield t),t&&this.readContiguousElements(t)}else if(s===mr.Tags||s===mr.Attachments){s===mr.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,jr(a);let e=this.reader.requestSlice(o,a);Te(e)&&(e=yield e),e&&this.readContiguousElements(e)}else if(s===mr.Cluster){this.currentSegment.clusterSeekStartPos=t;break}if(void 0===a)break;r=o+a}if(this.currentSegment.seekEntries.sort((e,t)=>e.segmentPosition-t.segmentPosition),null!==this.reader.fileSize)for(const t of this.currentSegment.seekEntries){const i=Jr.find(e=>e.id===t.id);if(!i)continue;if(this.currentSegment[i.flag])continue;let r=this.reader.requestSliceRange(e+t.segmentPosition,2,br);if(Te(r)&&(r=yield r),!r)continue;const n=Ir(r);if(!n)continue;const{id:s,size:a}=n;if(s!==i.id)continue;jr(a),this.currentSegment[i.flag]=!0;let o=this.reader.requestSlice(r.filePos,a);Te(o)&&(o=yield o),o&&this.readContiguousElements(o)}-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3);for(const e of this.currentSegment.tracks)null!==e.defaultDurationNs&&(e.defaultDuration=this.currentSegment.timestampFactor*e.defaultDurationNs/1e9);const n=new Map(this.currentSegment.tracks.map(e=>[e.id,e]));for(const e of this.currentSegment.cuePoints){const t=n.get(e.trackId);t&&t.cuePoints.push(e)}for(const e of this.currentSegment.tracks){e.cuePoints.sort((e,t)=>e.time-t.time);for(let t=0;ta&&(a=e.cuePoints.length,s=e);for(const e of this.currentSegment.tracks)0===e.cuePoints.length&&(e.cuePoints=s.cuePoints);this.currentSegment=null})}readCluster(e,t){return d(this,null,function*(){var i;if((null==(i=t.lastReadCluster)?void 0:i.elementStartPos)===e)return t.lastReadCluster;let r=this.reader.requestSliceRange(e,2,br);Te(r)&&(r=yield r),y(r);const n=e,s=Ir(r);y(s);y(s.id===mr.Cluster);let a=s.size;const o=r.filePos;if(void 0===a){a=(yield Er(this.reader,o,yr,t.elementEndPos)).pos-o}let l=this.reader.requestSlice(o,a);Te(l)&&(l=yield l);const c={segment:t,elementStartPos:n,elementEndPos:o+a,dataStartPos:o,timestamp:-1,trackData:new Map};if(this.currentCluster=c,l){const e=this.readContiguousElements(l,yr);c.elementEndPos=e}for(const[,e]of c.trackData){const t=e.track;y(e.blocks.length>0);let i=!1;for(let n=0;n({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp);for(let n=0;n({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp));const r=e.blocks[e.presentationTimestamps[0].blockIndex],s=e.blocks[T(e.presentationTimestamps).blockIndex];e.startTimestamp=r.timestamp,e.endTimestamp=s.timestamp+s.duration;const a=W(t.clusterPositionCache,e.startTimestamp,e=>e.startTimestamp);-1!==a&&t.clusterPositionCache[a].elementStartPos===n||t.clusterPositionCache.splice(a+1,0,{elementStartPos:c.elementStartPos,startTimestamp:e.startTimestamp})}return t.lastReadCluster=c,c})}getTrackDataInCluster(e,t){let i=e.trackData.get(t);if(!i){const r=e.segment.tracks.find(e=>e.id===t);if(!r)return null;i={track:r,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,i)}return i}expandLacedBlocks(e,t){var i;for(let r=0;r=2;){const i=e.filePos;if(!this.traverseElement(e,t))return i}return e.filePos}traverseElement(e,t){var i,r,n,s,a,o,l,d,h,f,m,p,g,k,T,v,S,w,P,I,C,B,_,F,D,N,O,L,z,U,q,W,H,V,j,K,X,$,G,Q,Y,J,ee,te,ie,re,ne,se,oe,le,ce;const ue=Ir(e);if(!ue)return!1;if(t&&t.includes(ue.id))return!1;const{id:de,size:he}=ue,fe=e.filePos;switch(jr(he),de){case mr.DocType:this.isWebM="webm"===xr(e,he);break;case mr.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(fe,he)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case mr.SeekID:{const t=null==(i=this.currentSegment)?void 0:i.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=Sr(e,he)}break;case mr.SeekPosition:{const t=null==(r=this.currentSegment)?void 0:r.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=Sr(e,he)}break;case mr.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=Sr(e,he),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case mr.Duration:if(!this.currentSegment)break;this.currentSegment.duration=Br(e,he);break;case mr.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:u(c({},Le),{primary:!1}),trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(fe,he)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>{var t;return"decompress"!==(null==(t=e.data)?void 0:t.type)||e.scope!==$r.Block||e.data.algorithm!==Qr.HeaderStripping})&&(Me._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){const e=this.currentTrack.codecId.indexOf("/"),t=-1===e?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,e);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,null!==this.currentTrack.info.displayWidth&&null!==this.currentTrack.info.displayHeight){const e=this.currentTrack.info.displayWidth*this.currentTrack.info.height,t=this.currentTrack.info.displayHeight*this.currentTrack.info.width;e>0&&t>0&&(e>t?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*e/t):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*t/e))}if(this.currentTrack.codecId===Rr)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===Fr)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===Ar)this.currentTrack.info.codec="vp8";else if(t===Dr)this.currentTrack.info.codec="vp9";else if(t===Mr)this.currentTrack.info.codec="av1";else if(t===Nr){const e=this.currentTrack.codecPrivate?x.decode(this.currentTrack.codecPrivate):"";ui.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new rn(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===Or?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===Lr?this.currentTrack.info.codec="mp3":t===zr?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=pi):t===Ur?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===qr?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Wr?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Hr?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Vr?(this.currentTrack.info.codec="dts","A_DTS/EXPRESS"===this.currentTrack.codecId?this.currentTrack.info.dtsFormat="dtse":"A_DTS/LOSSLESS"===this.currentTrack.codecId&&(this.currentTrack.info.dtsFormat="dtsl")):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));const e=this.currentTrack;this.currentTrack.trackBacking=new nn(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case mr.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=Sr(e,he);break;case mr.TrackType:{if(!this.currentTrack)break;const t=Sr(e,he);1===t?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:c({},M),alphaMode:!1,proresFormat:null}:2===t&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case mr.FlagEnabled:if(!this.currentTrack)break;Sr(e,he)||(this.currentTrack=null);break;case mr.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!Sr(e,he);break;case mr.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!Sr(e,he);break;case mr.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!Sr(e,he);break;case mr.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!Sr(e,he);break;case mr.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!Sr(e,he);break;case mr.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!Sr(e,he);break;case mr.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=xr(e,he);break;case mr.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=Ro(e,he);break;case mr.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=Sr(e,he);break;case mr.Name:if(!this.currentTrack)break;this.currentTrack.name=Cr(e,he);break;case mr.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=xr(e,he),ae(this.currentTrack.languageCode)||(this.currentTrack.languageCode=Z);break;case mr.LanguageBCP47:{if(!this.currentTrack)break;const t=xr(e,he).split("-")[0];this.currentTrack.languageCode=t||Z,this.currentTrack.hasLanguageBcp47=!0}break;case mr.Video:if("video"!==(null==(s=null==(n=this.currentTrack)?void 0:n.info)?void 0:s.type))break;this.readContiguousElements(e.slice(fe,he));break;case mr.PixelWidth:if("video"!==(null==(o=null==(a=this.currentTrack)?void 0:a.info)?void 0:o.type))break;this.currentTrack.info.width=Sr(e,he);break;case mr.PixelHeight:if("video"!==(null==(d=null==(l=this.currentTrack)?void 0:l.info)?void 0:d.type))break;this.currentTrack.info.height=Sr(e,he);break;case mr.DisplayWidth:if("video"!==(null==(f=null==(h=this.currentTrack)?void 0:h.info)?void 0:f.type))break;this.currentTrack.info.displayWidth=Sr(e,he);break;case mr.DisplayHeight:if("video"!==(null==(p=null==(m=this.currentTrack)?void 0:m.info)?void 0:p.type))break;this.currentTrack.info.displayHeight=Sr(e,he);break;case mr.DisplayUnit:if("video"!==(null==(k=null==(g=this.currentTrack)?void 0:g.info)?void 0:k.type))break;this.currentTrack.info.displayUnit=Sr(e,he);break;case mr.AlphaMode:if("video"!==(null==(v=null==(T=this.currentTrack)?void 0:T.info)?void 0:v.type))break;this.currentTrack.info.alphaMode=1===Sr(e,he);break;case mr.Colour:if("video"!==(null==(w=null==(S=this.currentTrack)?void 0:S.info)?void 0:w.type))break;this.readContiguousElements(e.slice(fe,he));break;case mr.MatrixCoefficients:{if("video"!==(null==(I=null==(P=this.currentTrack)?void 0:P.info)?void 0:I.type))break;const t=Sr(e,he),i=A[t];this.currentTrack.info.colorSpace.matrix=i}break;case mr.Range:{if("video"!==(null==(B=null==(C=this.currentTrack)?void 0:C.info)?void 0:B.type))break;const t=Sr(e,he);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case mr.TransferCharacteristics:{if("video"!==(null==(F=null==(_=this.currentTrack)?void 0:_.info)?void 0:F.type))break;const t=Sr(e,he),i=R[t];this.currentTrack.info.colorSpace.transfer=i}break;case mr.Primaries:{if("video"!==(null==(N=null==(D=this.currentTrack)?void 0:D.info)?void 0:N.type))break;const t=Sr(e,he),i=E[t];this.currentTrack.info.colorSpace.primaries=i}break;case mr.Projection:if("video"!==(null==(L=null==(O=this.currentTrack)?void 0:O.info)?void 0:L.type))break;this.readContiguousElements(e.slice(fe,he));break;case mr.ProjectionPoseRoll:{if("video"!==(null==(U=null==(z=this.currentTrack)?void 0:z.info)?void 0:U.type))break;const t=-Br(e,he);try{this.currentTrack.info.rotation=b(t)}catch(me){}}break;case mr.Audio:if("audio"!==(null==(W=null==(q=this.currentTrack)?void 0:q.info)?void 0:W.type))break;this.readContiguousElements(e.slice(fe,he));break;case mr.SamplingFrequency:if("audio"!==(null==(V=null==(H=this.currentTrack)?void 0:H.info)?void 0:V.type))break;this.currentTrack.info.sampleRate=Br(e,he);break;case mr.Channels:if("audio"!==(null==(K=null==(j=this.currentTrack)?void 0:j.info)?void 0:K.type))break;this.currentTrack.info.numberOfChannels=Sr(e,he);break;case mr.BitDepth:if("audio"!==(null==($=null==(X=this.currentTrack)?void 0:X.info)?void 0:$.type))break;this.currentTrack.info.bitDepth=Sr(e,he);break;case mr.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(fe,he)),this.currentCueTime=null;break;case mr.CueTime:this.currentCueTime=Sr(e,he);break;case mr.CueTrackPositions:{if(null===this.currentCueTime)break;y(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(fe,he)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case mr.CueTrack:{const t=null==(G=this.currentSegment)?void 0:G.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=Sr(e,he)}break;case mr.CueClusterPosition:{const t=null==(Q=this.currentSegment)?void 0:Q.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;y(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+Sr(e,he)}break;case mr.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=Sr(e,he);break;case mr.SimpleBlock:{if(!this.currentCluster)break;const t=vr(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=No(e),n=Fo(e),s=n>>1&3;let a=!!(128&n);"audio"===(null==(Y=i.track.info)?void 0:Y.type)&&i.track.info.codec&&(a=!0);const o=Ro(e,he-(e.filePos-fe)),l=i.track.decodingInstructions.length>0;i.blocks.push({timestamp:r,duration:0,isKeyFrame:a,data:o,lacing:s,decoded:!l,postProcessed:!1,mainAdditional:null})}break;case mr.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(fe,he)),this.currentBlock=null;break;case mr.Block:{if(!this.currentCluster)break;const t=vr(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=No(e),n=Fo(e)>>1&3,s=Ro(e,he-(e.filePos-fe)),a=i.track.decodingInstructions.length>0;this.currentBlock={timestamp:r,duration:0,isKeyFrame:!0,data:s,lacing:n,decoded:!a,postProcessed:!1,mainAdditional:null},i.blocks.push(this.currentBlock)}break;case mr.BlockAdditions:this.readContiguousElements(e.slice(fe,he));break;case mr.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(fe,he)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case mr.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=Ro(e,he);break;case mr.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=Sr(e,he);break;case mr.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=Sr(e,he);break;case mr.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case mr.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(fe,he));break;case mr.Targets:this.readContiguousElements(e.slice(fe,he));break;case mr.TargetTypeValue:50!==Sr(e,he)&&(this.currentTagTargetIsMovie=!1);break;case mr.TagTrackUID:case mr.TagEditionUID:case mr.TagChapterUID:case mr.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case mr.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(fe,he));break;case mr.TagName:this.currentSimpleTagName=Cr(e,he);break;case mr.TagString:{if(!this.currentSimpleTagName)break;const t=Cr(e,he);this.processTagValue(this.currentSimpleTagName,t)}break;case mr.TagBinary:{if(!this.currentSimpleTagName)break;const t=Ro(e,he);this.processTagValue(this.currentSimpleTagName,t)}break;case mr.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(fe,he));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(null!=t.raw||(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new Oe(this.currentAttachedFile.fileData,null!=(J=this.currentAttachedFile.fileMediaType)?J:void 0,null!=(ee=this.currentAttachedFile.fileName)?ee:void 0,null!=(te=this.currentAttachedFile.fileDescription)?te:void 0)),(null==(ie=this.currentAttachedFile.fileMediaType)?void 0:ie.startsWith("image/"))&&this.currentAttachedFile.fileData){const e=this.currentAttachedFile.fileName;let i="unknown";if(e){const t=e.toLowerCase();t.startsWith("cover.")?i="coverFront":t.startsWith("back.")&&(i="coverBack")}null!=t.images||(t.images=[]),t.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:i,name:null!=(re=this.currentAttachedFile.fileName)?re:void 0,description:null!=(ne=this.currentAttachedFile.fileDescription)?ne:void 0})}this.currentAttachedFile=null}break;case mr.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=((e,t)=>{if(t<1)throw new Error("Bad unsigned int size "+t);let i=BigInt("0");for(let r=0;rt.order-e.order);break;case mr.ContentEncoding:this.currentDecodingInstruction={order:0,scope:$r.Block,data:null},this.readContiguousElements(e.slice(fe,he)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case mr.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=Sr(e,he);break;case mr.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=Sr(e,he);break;case mr.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:Qr.Zlib,settings:null},this.readContiguousElements(e.slice(fe,he));break;case mr.ContentCompAlgo:if("decompress"!==(null==(oe=null==(se=this.currentDecodingInstruction)?void 0:se.data)?void 0:oe.type))break;this.currentDecodingInstruction.data.algorithm=Sr(e,he);break;case mr.ContentCompSettings:if("decompress"!==(null==(ce=null==(le=this.currentDecodingInstruction)?void 0:le.data)?void 0:ce.type))break;this.currentDecodingInstruction.data.settings=Ro(e,he);break;case mr.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=fe+he,!0}decodeBlockData(e,t){y(e.decodingInstructions.length>0);let i=t;for(const r of e.decodingInstructions)if(y(r.data),"decompress"===r.data.type)if(r.data.algorithm===Qr.HeaderStripping)if(r.data.settings&&r.data.settings.length>0){const e=r.data.settings,t=new Uint8Array(e.length+i.length);t.set(e,0),t.set(i,e.length),i=t}return i}processTagValue(e,t){var i,r;if(!(null==(i=this.currentSegment)?void 0:i.metadataTags))return;const n=this.currentSegment.metadataTags;if(null!=n.raw||(n.raw={}),null!=(r=n.raw)[e]||(r[e]=t),"string"===typeof t)switch(e.toLowerCase()){case"title":null!=n.title||(n.title=t);break;case"description":null!=n.description||(n.description=t);break;case"artist":null!=n.artist||(n.artist=t);break;case"album":null!=n.album||(n.album=t);break;case"album_artist":null!=n.albumArtist||(n.albumArtist=t);break;case"genre":null!=n.genre||(n.genre=t);break;case"comment":null!=n.comment||(n.comment=t);break;case"lyrics":null!=n.lyrics||(n.lyrics=t);break;case"date":{const e=new Date(t);Number.isNaN(e.getTime())||null!=n.date||(n.date=e)}break;case"track_number":case"part_number":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.trackNumber||(n.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.tracksTotal||(n.tracksTotal=r))}break;case"disc_number":case"disc":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.discNumber||(n.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.discsTotal||(n.discsTotal=r))}}}getDurationFromMetadata(e){return d(this,null,function*(){if(e.duration<=0)return null;let t=null;for(const r of e.tracks){y(r.trackBacking);const e=yield r.trackBacking.getFirstPacket({metadataOnly:!0});e&&(t=Math.min(null!=t?t:1/0,e.timestamp))}let i=e.duration/e.timestampFactor;return i+=null!=t?t:0,i})}}class tn{constructor(e){this.internalTrack=e,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.segments)for(const e of r.tracks)if(e.trackBacking.getType()===t&&i++,e===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return d(this,null,function*(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)})}getLiveRefreshInterval(){return d(this,null,function*(){return null})}getFirstPacket(e){return d(this,null,function*(){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,e)})}intoTimescale(e){return ee(e*this.internalTrack.segment.timestampFactor)}getPacket(e,t){return d(this,null,function*(){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=W(t.presentationTimestamps,i,e=>e.timestamp);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id);if(i.blockIndex+1{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=X(t.presentationTimestamps,e=>t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=i);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id).blocks.findIndex((e,t)=>e.isKeyFrame&&t>i.blockIndex);if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.blocks.findIndex(e=>e.isKeyFrame);return y(-1!==e),{blockIndex:e,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)})}fetchPacketInCluster(e,t,i){return d(this,null,function*(){var r,n;if(-1===t)return null;const s=e.trackData.get(this.internalTrack.id).blocks[t];if(y(s),s.decoded||(s.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,s.data),s.decoded=!0),!s.postProcessed){if("prores"===(null==(r=this.internalTrack.info)?void 0:r.codec)){if(!(s.data.length>=8&&105===s.data[4]&&99===s.data[5]&&112===s.data[6]&&102===s.data[7])){const e=new Uint8Array(s.data.length+8);I(e).setUint32(0,e.length,!1),e[4]=105,e[5]=99,e[6]=112,e[7]=102,e.set(s.data,8),s.data=e}}s.postProcessed=!0}const a=i.metadataOnly?_i:s.data,o=s.timestamp/this.internalTrack.segment.timestampFactor,l=s.duration/this.internalTrack.segment.timestampFactor,c={};s.mainAdditional&&"video"===(null==(n=this.internalTrack.info)?void 0:n.type)&&this.internalTrack.info.alphaMode&&(c.alpha=i.metadataOnly?_i:s.mainAdditional,c.alphaByteLength=s.mainAdditional.byteLength);const u=new Ri(a,s.isKeyFrame?"key":"delta",o,l,e.dataStartPos+t,s.data.byteLength,c);return this.packetToClusterLocation.set(u,{cluster:e,blockIndex:t}),u})}performClusterLookup(e,t,i,r,n){return d(this,null,function*(){var s,a,o,l;const{demuxer:c,segment:u}=this.internalTrack;let d=null,h=null,f=-1;if(e){const{blockIndex:i,correctBlockFound:r}=t(e);if(r)return this.fetchPacketInCluster(e,i,n);-1!==i&&(h=e,f=i)}const m=W(this.internalTrack.cuePoints,i,e=>e.time),p=-1!==m?this.internalTrack.cuePoints[m]:null,g=W(this.internalTrack.clusterPositionCache,i,e=>e.startTimestamp),k=-1!==g?this.internalTrack.clusterPositionCache[g]:null,b=Math.max(null!=(s=null==p?void 0:p.clusterPosition)?s:0,null!=(a=null==k?void 0:k.elementStartPos)?a:0)||null;let T;for(e?null===b||e.elementStartPos>=b?(T=e.elementEndPos,d=e):T=b:T=null!=b?b:u.clusterSeekStartPos;null===u.elementEndPos||T<=u.elementEndPos-2;){if(d){const e=d.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=c.reader.requestSliceRange(T,2,br);if(Te(e)&&(e=yield e),!e)break;const i=T,s=Ir(e);if(!s||!kr.includes(s.id)&&s.id!==mr.Void){const e=yield _r(c.reader,i,kr,Math.min(null!=(o=u.elementEndPos)?o:1/0,i+Zr));if(e){T=e;continue}break}const a=s.id;let l=s.size;const m=e.filePos;if(a===mr.Cluster){d=yield c.readCluster(i,u),l=d.elementEndPos-m;const{blockIndex:e,correctBlockFound:r}=t(d);if(r)return this.fetchPacketInCluster(d,e,n);-1!==e&&(h=d,f=e)}if(void 0===l){y(a!==mr.Cluster);l=(yield Er(c.reader,m,yr,u.elementEndPos)).pos-m}const p=m+l;if(null===u.elementEndPos){let e=c.reader.requestSliceRange(p,2,br);if(Te(e)&&(e=yield e),!e)break;if(wr(e)===mr.Segment){u.elementEndPos=p;break}}T=p}if(p&&(!h||h.elementStartPosd(this,null,function*(){var e,t,i,r,n;let s=null;("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"prores"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription)&&(s=yield this.getFirstPacket({}));const a={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:"avc"===this.internalTrack.info.codec&&s?st(s.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&s?pt(s.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&s?Ct(s.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&s?Et(s.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&s?_t(s.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!D(this.internalTrack.info.colorSpace)){const n=fi(a);null!=(e=this.internalTrack.info.colorSpace).primaries||(e.primaries=n.primaries),null!=(t=this.internalTrack.info.colorSpace).transfer||(t.transfer=n.transfer),null!=(i=this.internalTrack.info.colorSpace).matrix||(i.matrix=n.matrix),null!=(r=this.internalTrack.info.colorSpace).fullRange||(r.fullRange=n.fullRange)}const o={codec:hi(a),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(n=this.internalTrack.info.codecDescription)?n:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class nn extends tn{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return d(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>d(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&Zt(e.data)}return{codec:mi({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const sn=(e,t,i,r=null)=>d(null,null,function*(){const n=o(2,16);let s=t;for(;null===i||s=4;){const t=a.filePos,i=Lo(a),n=null!==e.fileSize?e.fileSize-s:null,o=Pi(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&Bi(o.header.channel)===Bi(r.channel)))return{header:o.header,startPos:s};a.filePos=t+o.bytesAdvanced,s=a.filePos}}return null});class an extends Ei{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.xingFrameHeader=null,this.xingFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new O,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return d(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>d(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new on(this)]}))()})}advanceReader(){return d(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,el);if(Te(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=nl(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=yield sn(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e)return void(this.lastSampleLoaded=!0);const t=e.header;this.lastLoadedPos=e.startPos+t.totalSize-1;const i=wi(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(Te(r)&&(r=yield r),r){const n=Lo(r);if(n===vi||n===Si){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(Te(t)&&(t=yield t),t){const e=Ro(t,12),i=I(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&xi.FrameCount?i.getUint32(4,!1):null,fileSize:r&xi.FileSize?i.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=t,this.firstFrameHeaderPos=e.startPos);const n=t.audioSamplesInFrame/this.firstFrameHeader.sampleRate,s={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:n,dataStart:e.startPos,dataSize:t.totalSize};this.loadedSamples.push(s),this.nextTimestampInSamples+=t.audioSamplesInFrame})}getMimeType(){return d(this,null,function*(){return"audio/mpeg"})}getTrackBackings(){return d(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return d(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0,t=!1;for(;;){let i=this.reader.requestSlice(e,el);if(Te(i)&&(i=yield i),!i)break;const r=nl(i);if(!r)break;t=!0;let n=this.reader.requestSlice(i.filePos,r.size);if(Te(n)&&(n=yield n),!n)break;sl(n,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=Zo){let e=this.reader.requestSlice(this.reader.fileSize-Zo,Zo);Te(e)&&(e=yield e),y(e);"TAG"===Xo(e,3)&&il(e,this.metadataTags)}return this.metadataTags}finally{e()}})}}class on{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return y(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return d(this,null,function*(){const e=this.demuxer;if(y(null!==e.firstFrameHeader),y(null!==e.firstFrameHeaderPos),e.xingData){if(null!==e.xingData.frameCount)return e.xingData.frameCount*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}else if(null!==e.reader.fileSize){const s=(t=e.firstFrameHeader.lowSamplingFrequency,i=e.firstFrameHeader.layer,r=e.firstFrameHeader.bitrate,n=e.firstFrameHeader.sampleRate,0===i?0:1===i?144*r/(n<e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return d(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=W(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1>>0&4294967295}const un=e=>{const t=I(e),i=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let n=0;n>>24^t])>>>0}return t.setUint32(22,i,!0),r},dn=(e,t,i)=>{let r=0,n=null;if(e.length>0)if("vorbis"===t.codec){y(t.vorbisInfo);const s=(1<<(e=>{let t=0;for(;e;)t++,e>>=1;return t})(t.vorbisInfo.modeBlockflags.length-1))-1<<1,a=(e[0]&s)>>1;if(a>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let o=i;const l=t.vorbisInfo.modeBlockflags[a];if(n=t.vorbisInfo.blocksizes[l],1===l){const i=1+(1|s),r=e[0]&i?1:0;o=t.vorbisInfo.blocksizes[r]}r=null!==o?o+n>>2:0}else if("opus"===t.codec){r=(e=>{const t=e[0]>>3,i=3&e[0];let r;return r=0===i?1:1===i||2===i?2:63&e[1],{durationInSamples:Rt[t]*r}})(e).durationInSamples}return{durationInSamples:r,vorbisBlockSize:n}},hn=27,fn=282,mn=e=>{const t=e.filePos;if(zo(e)!==ln)return null;e.skip(1);const i=Fo(e),r=Vo(e),n=zo(e),s=zo(e),a=zo(e),o=Fo(e),l=new Uint8Array(o);for(let d=0;de+t,0);return{headerStartPos:t,totalSize:c+u,dataStartPos:t+c,dataSize:u,headerType:i,granulePosition:r,serialNumber:n,sequenceNumber:s,checksum:a,lacingValues:l}},pn=(e,t)=>{for(;e.filePos>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===ln)return!0;e.skip(1)}}return!1};class gn extends Ei{constructor(e){super(e),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=e._reader}readMetadata(){return d(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>d(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,hn,fn);if(Te(t)&&(t=yield t),!t)break;const i=mn(t);if(!i)break;if(!!!(2&i.headerType))break;this.bitstreams.push({serialNumber:i.serialNumber,bosPage:i,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=i.headerStartPos+i.totalSize}for(const t of this.bitstreams){const e=yield this.readPacket(t.bosPage,0);e&&(e.data.byteLength>=7&&1===e.data[0]&&118===e.data[1]&&111===e.data[2]&&114===e.data[3]&&98===e.data[4]&&105===e.data[5]&&115===e.data[6]?yield this.readVorbisMetadata(e,t):e.data.byteLength>=8&&79===e.data[0]&&112===e.data[1]&&117===e.data[2]&&115===e.data[3]&&72===e.data[4]&&101===e.data[5]&&97===e.data[6]&&100===e.data[7]&&(yield this.readOpusMetadata(e,t)),null!==t.codecInfo.codec&&this.trackBackings.push(new kn(t,this)))}}))()})}readVorbisMetadata(e,t){return d(this,null,function*(){let i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;if(i=yield this.findNextPacketStart(r),!i)return;const n=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!n)return;if(3!==r.data[0]||5!==n.data[0])return;const s=[],a=e=>{for(;s.push(Math.min(255,e)),!(e<255);)e-=255};a(e.data.length),a(r.data.length);const o=new Uint8Array(1+s.length+e.data.length+r.data.length+n.data.length);o[0]=2,o.set(s,1),o.set(e.data,1+s.length),o.set(r.data,1+s.length+e.data.length),o.set(n.data,1+s.length+e.data.length+r.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=n;const l=I(e.data);t.numberOfChannels=l.getUint8(11),t.sampleRate=l.getUint32(12,!0);const c=l.getUint8(28);t.codecInfo.vorbisInfo={blocksizes:[1<<(15&c),1<<(c>>4)],modeBlockflags:Ft(n.data).modeBlockflags},Nt(r.data.subarray(7),this.metadataTags)})}readOpusMetadata(e,t){return d(this,null,function*(){const i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=r;const n=(e=>{const t=I(e),i=t.getUint8(9),r=t.getUint16(10,!0),n=t.getUint32(12,!0),s=t.getInt16(16,!0),a=t.getUint8(18);let o=null;return a&&(o=e.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:n,outputGain:s,channelMappingFamily:a,channelMappingTable:o}})(e.data);t.numberOfChannels=n.outputChannelCount,t.sampleRate=pi,t.codecInfo.opusInfo={preSkip:n.preSkip},Nt(r.data.subarray(8),this.metadataTags)})}readPacket(e,t){return d(this,null,function*(){y(te+t.length,0);if(0===o)return null;const l=new Uint8Array(o);let c=0;for(let e=0;e{let t="audio/ogg";e.codecStrings&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({codecStrings:(yield Promise.all(this.trackBackings.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})))).filter(Boolean)})})}getTrackBackings(){return d(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return d(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}class kn{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new O,this.internalSampleRate="opus"===e.codecInfo.codec?pi:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return y(-1!==e),e+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return d(this,null,function*(){return null})}getLiveRefreshInterval(){return d(this,null,function*(){return null})}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}getDecoderConfig(){return d(this,null,function*(){var e;return y(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:null!=(e=this.bitstream.description)?e:void 0}})}getName(){return null}getLanguageCode(){return Z}getDisposition(){return u(c({},Le),{primary:!1})}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(y(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:n}=dn(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new Ri(i.metadataOnly?_i:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,r/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:r,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:n}),s}getFirstPacket(e){return d(this,null,function*(){y(this.bitstream.lastMetadataPacket);const t=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let i=0;"opus"===this.bitstream.codecInfo.codec&&(y(this.bitstream.codecInfo.opusInfo),i-=this.bitstream.codecInfo.opusInfo.preSkip);const r=yield this.demuxer.readPacket(t.startPage,t.startSegmentIndex);return this.createEncodedPacketFromOggPacket(r,{timestampInSamples:i,vorbisLastBlocksize:null},e)})}getNextPacket(e,t){return d(this,null,function*(){const i=this.encodedPacketToMetadata.get(e);if(!i)throw new Error("Packet was not created from this track.");const r=yield this.demuxer.findNextPacketStart(i.packet);if(!r)return null;const n=i.timestampInSamples+i.durationInSamples,s=yield this.demuxer.readPacket(r.startPage,r.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:n,vorbisLastBlocksize:i.vorbisBlockSize},t)})}getPacket(e,t){return d(this,null,function*(){var i,r;if(null===this.demuxer.reader.fileSize)return this.getPacketSequential(e,t);const n=ee(e*this.internalSampleRate);if(0===n)return this.getFirstPacket(t);if(n<0)return null;y(this.bitstream.lastMetadataPacket);const s=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!s)return null;let a=s.startPage,o=this.demuxer.reader.fileSize;const l=[a];e:for(;a.headerStartPos+a.totalSizen?o=c.headerStartPos:(a=c,l.push(c));continue e}i=c.headerStartPos+c.totalSize}}let c=s.startPage;for(const e of l){if(e.granulePosition===a.granulePosition)break;(!c||e.headerStartPos>c.headerStartPos)&&(c=e)}let u=c;const d=[u];for(;u.serialNumber!==this.bitstream.serialNumber||u.granulePosition!==a.granulePosition;){const e=u.headerStartPos+u.totalSize;let t=this.demuxer.reader.requestSliceRange(e,hn,fn);Te(t)&&(t=yield t),y(t);const i=mn(t);y(i),u=i,u.serialNumber===this.bitstream.serialNumber&&d.push(u)}y(-1!==u.granulePosition);let h,f,m=null,p=u,g=0;if(u.headerStartPos===s.startPage.headerStartPos)h=this.granulePositionToTimestampInSamples(0),f=!0,m=0;else{h=0,f=!1;for(let t=u.lacingValues.length-1;t>=0;t--){if(u.lacingValues[t]<255){m=t+1;break}}if(null===m)throw new Error("Invalid page with granule position: no packets end on this page.");g=m-1;const e={data:_i,endPage:p,endSegmentIndex:g};if(yield this.demuxer.findNextPacketStart(e)){const e=bn(d,u,m);y(e);const t=yn(d,e.page,e.segmentIndex);t&&(u=t.page,m=t.segmentIndex)}else for(;;){const e=bn(d,u,m);if(!e)break;const t=yn(d,e.page,e.segmentIndex);if(!t)break;if(u=t.page,m=t.segmentIndex,e.page.headerStartPos!==p.headerStartPos){p=e.page,g=e.segmentIndex;break}}}let k=null,b=null;for(;null!==u;){y(null!==m);const e=yield this.demuxer.readPacket(u,m);if(!e)break;if(!(u.headerStartPos===s.startPage.headerStartPos&&mn||Math.max(a.timestampInSamples,0)===n))break}const a=yield this.demuxer.findNextPacketStart(e);if(!a)break;u=a.startPage,m=a.startSegmentIndex}return k})}getPacketSequential(e,t){return d(this,null,function*(){const i=yield this.sequentialScanMutex.acquire();try{const i=ee(e*this.internalSampleRate);e=i/this.internalSampleRate;const r=W(this.sequentialScanCache,i,e=>e.timestampInSamples);let n;if(-1!==r){const e=this.sequentialScanCache[r];n=this.createEncodedPacketFromOggPacket(e.packet,{timestampInSamples:e.timestampInSamples,vorbisLastBlocksize:e.vorbisLastBlockSize},t)}else n=yield this.getFirstPacket(t);let s=0;for(;n&&n.timestampe)break;if(n=i,s++,100===s){s=0;const e=this.encodedPacketToMetadata.get(n);y(e),this.sequentialScanCache.length>0&&y(T(this.sequentialScanCache).timestampInSamples<=e.timestampInSamples),this.sequentialScanCache.push(e)}}return n}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const yn=(e,t,i)=>{let r=t,n=i;e:for(;;){for(n--;n>=0;n--){if(r.lacingValues[n]<255){n++;break e}}y(-1===n);if(!(1&r.headerType)){n=0;break}const t=K(e,e=>e.headerStartPos{if(i>0)return{page:t,segmentIndex:i-1};const r=K(e,e=>e.headerStartPosd(this,null,function*(){var e,t;let i=this.reader.requestSlice(0,12);Te(i)&&(i=yield i),y(i);const r=Xo(i,4),n="RIFX"!==r,s="RF64"===r,a=Oo(i,n);let o=s?this.reader.fileSize:Math.min(a+8,null!=(e=this.reader.fileSize)?e:1/0);if("WAVE"!==Xo(i,4))throw new Error("Invalid WAVE file - wrong format");let l=0,c=null,u=i.filePos;for(;null===o||u=18&&357!==n){const e=Ao(r,i),s=t-18;if(Math.min(s,e)>=22&&n===Tn.EXTENSIBLE){r.skip(6);const e=Ro(r,16);n=e[0]|e[1]<<8}}if(n!==Tn.MULAW&&n!==Tn.ALAW||(l=8),n!==Tn.PCM&&n!==Tn.IEEE_FLOAT&&n!==Tn.ALAW&&n!==Tn.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${n}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(n===Tn.PCM&&![8,16,24,32].includes(l))throw new Error(`Unsupported WAVE PCM bit depth (${l}). Only 8, 16, 24, and 32 bits are supported.`);if(n===Tn.IEEE_FLOAT&&![32,64].includes(l))throw new Error(`Unsupported WAVE float bit depth (${l}). Only 32 and 64 bits are supported.`);this.audioInfo={format:n,numberOfChannels:s,sampleRate:a,sampleSizeInBytes:Math.ceil(l/8),blockSizeInBytes:o}})}parseListChunk(e,t,i){return d(this,null,function*(){var r,n,s,a,o,l,c,u,d,h,f;let m=this.reader.requestSlice(e,t);if(Te(m)&&(m=yield m),!m)return;const p=Xo(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=Xo(m,4),t=Oo(m,i),p=Ro(m,t);let k=0;for(let i=0;i0&&(null!=(l=this.metadataTags).trackNumber||(l.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(c=this.metadataTags).tracksTotal||(c.tracksTotal=i))}break;case"ICRD":case"IDIT":{const e=new Date(y);Number.isNaN(e.getTime())||null!=(u=this.metadataTags).date||(u.date=e)}break;case"YEAR":{const e=Number.parseInt(y,10);Number.isInteger(e)&&e>0&&(null!=(d=this.metadataTags).date||(d.date=new Date(e,0,1)))}break;case"IGNR":case"GENR":null!=(h=this.metadataTags).genre||(h.genre=y);break;case"ICMT":case"CMNT":case"COMM":null!=(f=this.metadataTags).comment||(f.comment=y)}g+=8+t+(1&t)}})}parseId3Chunk(e,t){return d(this,null,function*(){let i=this.reader.requestSlice(e,t);if(Te(i)&&(i=yield i),!i)return;const r=nl(i);if(r){const n=t-el;if(r.size=Math.min(r.size,n),r.size>0){const t=i.slice(e+el,r.size);sl(t,r,this.metadataTags)}}})}getCodec(){if(y(this.audioInfo),this.audioInfo.format===Tn.MULAW)return"ulaw";if(this.audioInfo.format===Tn.ALAW)return"alaw";if(this.audioInfo.format===Tn.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}if(this.audioInfo.format===Tn.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}y(!1)}getMimeType(){return d(this,null,function*(){return"audio/wav"})}getTrackBackings(){return d(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return d(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}const wn=2048;class Pn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return y(this.demuxer.audioInfo),this.demuxer.audioInfo.format}getDecoderConfig(){return d(this,null,function*(){const e=this.demuxer.getCodec();return e?(y(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null})}getNumberOfChannels(){return y(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return y(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return y(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return d(this,null,function*(){return y(-1!==this.demuxer.dataSize),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return d(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return Z}getDisposition(){return c({},Le)}getPacketAtIndex(e,t){return d(this,null,function*(){y(e>=0),y(this.demuxer.audioInfo);const i=e*wn*this.demuxer.audioInfo.blockSizeInBytes;if(i>=this.demuxer.dataSize)return null;const r=Math.min(wn*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-i);if(null===this.demuxer.reader.fileSize){let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);if(Te(e)&&(e=yield e),!e)return null}let n;if(t.metadataOnly)n=_i;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);Te(e)&&(e=yield e),y(e),n=Ro(e,r)}const s=e*wn/this.demuxer.audioInfo.sampleRate,a=r/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(e,this.demuxer.lastKnownPacketIndex),new Ri(n,"key",s,a,e,r)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getPacket(e,t){return d(this,null,function*(){y(this.demuxer.audioInfo);const i=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/wn,(this.demuxer.dataSize-1)/(wn*this.demuxer.audioInfo.blockSizeInBytes)));if(i<0)return null;const r=yield this.getPacketAtIndex(i,t);if(r)return r;if(0===i)return null;y(null===this.demuxer.reader.fileSize);let n=yield this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,t);for(;n;){const e=yield this.getNextPacket(n,t);if(!e)break;n=e}return n})}getNextPacket(e,t){y(this.demuxer.audioInfo);const i=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/wn);return this.getPacketAtIndex(i+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const In=e=>{const t=e.filePos,i=Ro(e,9),r=new ze(i);if(4095!==r.readBits(12))return null;r.skipBits(1);if(0!==r.readBits(2))return null;const n=r.readBits(1),s=r.readBits(2)+1,a=r.readBits(4);if(15===a)return null;r.skipBits(1);const o=r.readBits(3);if(0===o)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const l=r.readBits(13);r.skipBits(11);const c=r.readBits(2)+1;if(1!==c)throw new Error("ADTS frames with more than one AAC frame are not supported.");let u=null;return 1===n?e.filePos-=2:u=r.readBits(16),{objectType:s,samplingFrequencyIndex:a,channelConfiguration:o,frameLength:l,numberOfAacFrames:c,crcCheck:u,startPos:t}},xn=1024;class Cn extends Ei{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new O,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return d(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>d(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();y(this.firstFrameHeader),this.trackBackings=[new Bn(this)]}))()})}advanceReader(){return d(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,el);if(Te(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=nl(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(Te(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=In(e);if(!t)return void(this.lastSampleLoaded=!0);if(null!==this.reader.fileSize&&t.startPos+t.frameLength>this.reader.fileSize)return void(this.lastSampleLoaded=!0);this.firstFrameHeader||(this.firstFrameHeader=t);const i=Ue[t.samplingFrequencyIndex];y(void 0!==i);const r=xn/i,n={timestamp:this.nextTimestampInSamples/i,duration:r,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(n),this.nextTimestampInSamples+=xn,this.lastLoadedPos=t.startPos+t.frameLength})}getMimeType(){return d(this,null,function*(){return"audio/aac"})}getTrackBackings(){return d(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return d(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0;for(;;){let t=this.reader.requestSlice(e,el);if(Te(t)&&(t=yield t),!t)break;const i=nl(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(Te(r)&&(r=yield r),!r)break;sl(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}})}}class Bn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/xn}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return d(this,null,function*(){return null})}getLiveRefreshInterval(){return d(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return Z}getCodec(){return"aac"}getInternalCodecId(){return y(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){y(this.demuxer.firstFrameHeader);const e=qe[this.demuxer.firstFrameHeader.channelConfiguration];return y(void 0!==e),e}getSampleRate(){y(this.demuxer.firstFrameHeader);const e=Ue[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return y(void 0!==e),e}getDisposition(){return c({},Le)}getDecoderConfig(){return d(this,null,function*(){return y(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}})}getPacketAtIndex(e,t){return d(this,null,function*(){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=_i;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(Te(e)&&(e=yield e),!e)return null;r=Ro(e,i.dataSize)}return new Ri(r,"key",i.timestamp,i.duration,e,i.dataSize)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getNextPacket(e,t){return d(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=q(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return d(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=W(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1d(this,null,function*(){var e;let t=0;for(;;){let e=this.reader.requestSlice(t,el);if(Te(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const i=nl(e);if(!i)break;let r=this.reader.requestSlice(e.filePos,i.size);Te(r)&&(r=yield r),y(r),sl(r,i,this.metadataTags),t=e.filePos+i.size}for(t+=4;null===this.reader.fileSize||ts.end-6)return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:s.end-e,isLastFrame:!0};if(255===Fo(s)){const t=s.filePos;if(Fo(s)!==(1===this.blockingBit?249:248)){s.filePos=t;continue}s.skip(-2);const i=s.filePos-e,r=this.readFlacFrameHeader({slice:s,isFirstPacket:!1});if(!r){s.filePos=t;continue}if(0===this.blockingBit){if(r.num-a.num!==1){s.filePos=t;continue}}else if(r.num-a.num!==a.blockSize){s.filePos=t;continue}return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:i,isLastFrame:!1}}}})}readFlacFrameHeader({slice:e,isFirstPacket:t}){const i=e.filePos,r=Ro(e,4),n=new ze(r);if(32764!==n.readBits(15))return null;if(null===this.blockingBit){y(t);const e=n.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){y(!t);if(1!==n.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");y(!t);if(0!==n.readBits(1))return null}const s=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*o(2,e):6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?o(2,e):null)(n.readBits(4));if(!s)return null;y(this.audioInfo);const a=((e,t)=>{switch(e){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}})(n.readBits(4),this.audioInfo.sampleRate);if(!a)return null;n.readBits(4),n.readBits(3);if(0!==n.readBits(1))return null;const l=(e=>{let t=0;const i=new ze(Ro(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],n=t-1,s=new ze(Ro(e,n)),a=8-t-1;for(let o=0;oe|t<"uncommon-u16"===t?Do(e)+1:"uncommon-u8"===t?Fo(e)+1:"number"===typeof t?t:($(t),void y(!1)))(e,s),u=((e,t)=>"uncommon-u16"===t?Do(e):"uncommon-u16-10"===t?10*Do(e):"uncommon-u8"===t?Fo(e):"number"===typeof t?t:null)(e,a);if(null===u)return null;if(u!==this.audioInfo.sampleRate)return null;const d=e.filePos-i,h=Fo(e);e.skip(-d),e.skip(-1);const f=(e=>{let t=0;for(const i of e){t^=i;for(let e=0;e<8;e++)0!==(128&t)?t=t<<1^7:t<<=1,t&=255}return t})(Ro(e,d));return h!==f?null:{num:l,blockSize:c,sampleRate:u}}advanceReader(){return d(this,null,function*(){yield this.readMetadata(),y(null!==this.lastLoadedPos),y(this.audioInfo);const e=this.lastLoadedPos,t=yield this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length});if(!t)return void(this.lastSampleLoaded=!0);const i=this.loadedSamples[this.loadedSamples.length-1],r={blockOffset:i?i.blockOffset+i.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size};this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(r),t.isLastFrame&&(this.lastSampleLoaded=!0)})}}class _n{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return y(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return y(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return Z}getTimeResolution(){return y(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return d(this,null,function*(){return y(this.demuxer.audioInfo),0===this.demuxer.audioInfo.totalSamples?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return d(this,null,function*(){return null})}getDisposition(){return c({},Le)}getDecoderConfig(){return d(this,null,function*(){return y(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}})}getPacket(e,t){return d(this,null,function*(){if(y(this.demuxer.audioInfo),e<0)return null;const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=W(this.demuxer.loadedSamples,e,e=>e.blockOffset/this.demuxer.audioInfo.sampleRate);if(-1===i){yield this.demuxer.advanceReader();continue}const r=this.demuxer.loadedSamples[i],n=r.blockOffset/this.demuxer.audioInfo.sampleRate;if(!(n+r.blockSize/this.demuxer.audioInfo.sampleRate<=e))return this.getPacketAtIndex(i,t);if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t);yield this.demuxer.advanceReader()}}finally{i()}})}getNextPacket(e,t){return d(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=e.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&i>=this.demuxer.loadedSamples.length)return null;for(;i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(i,t)}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}getPacketAtIndex(e,t){return d(this,null,function*(){const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=_i;else{let e=this.demuxer.reader.requestSlice(i.byteOffset,i.byteSize);if(Te(e)&&(e=yield e),!e)return null;r=Ro(e,i.byteSize)}y(this.demuxer.audioInfo);const n=i.blockOffset/this.demuxer.audioInfo.sampleRate,s=i.blockSize/this.demuxer.audioInfo.sampleRate;return new Ri(r,"key",n,s,e,i.byteSize)})}getFirstPacket(e){return d(this,null,function*(){for(;0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(0,e)})}}const Rn=9e4,Fn=o(2,33),An=188,Dn="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",Mn=new Set([133,134,162]),Nn=new Set;class On extends Ei{constructor(e){super(e),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5242880,this.minReferencePointByteDistance=-1,this.timestampWrapInfo=null,this.reader=e._reader}readMetadata(){return d(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>d(this,null,function*(){let e=this.reader.requestSlice(0,205);Te(e)&&(e=yield e),y(e);const t=Ro(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=An;else if(71===t[0]&&71===t[204])this.packetOffset=0,this.packetStride=204;else{if(71!==t[4]||71!==t[196])throw new Error("Unreachable.");this.packetOffset=4,this.packetStride=192}this.minReferencePointByteDistance=256*this.packetStride;let i=this.packetOffset,r=null,n=!1,s=!1;for(;;){const e=yield this.readPacketHeader(i);if(!e)break;if(0===e.payloadUnitStartIndicator){i+=this.packetStride;continue}if(s&&!this.elementaryStreams.some(t=>t.pid===e.pid)){i+=this.packetStride;continue}const t=yield this.readSection(i,!0,!s);if(!t)break;const a=3,o=32;let l=!1;if(!s&&0!==t.pid){if(!(0===t.payload[0]&&0===t.payload[1]&&1===t.payload[2])){const e=new ze(t.payload),i=e.readAlignedByte();e.skipBits(8*i);l=2===e.readBits(8)}}if(0!==t.pid||n)if(t.pid!==r&&!l||s){const e=this.elementaryStreams.find(e=>e.pid===t.pid);e:if(e&&!e.initialized){const i=zn(this,t,!0);if(!i)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${e.pid}`);if(e.firstSection=t,e.canBeTrustedWithKeyPackets=1===t.randomAccessIndicator,this.input._initInput){const i=(yield this.input._initInput._getDemuxer()).elementaryStreams.find(i=>i.pid===t.pid&&i.info.codec===e.info.codec);if(i){e.info=i.info,e.initialized=!0;break e}}const r=new Vn(e,i);if("video"===e.info.type){for(;;){if(r.suppliedPacket=null,yield r.markNextPacket(),"avc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(e.info.avcCodecInfo=st(r.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];y(t);const i=ct(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight;const n=i.pixelAspectRatio.num,s=i.pixelAspectRatio.den;n>0&&s>0&&(n>s?(e.info.squarePixelWidth=Math.round(e.info.width*n/s),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*s/n))),e.info.colorSpace={primaries:E[i.colourPrimaries],transfer:R[i.transferCharacteristics],matrix:A[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}if("hevc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(e.info.hevcCodecInfo=pt(r.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===Ge.SPS_NUT).nalUnits[0];y(t);const i=mt(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight,i.pixelAspectRatio.num>i.pixelAspectRatio.den?(e.info.squarePixelWidth=Math.round(e.info.width*i.pixelAspectRatio.num/i.pixelAspectRatio.den),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*i.pixelAspectRatio.den/i.pixelAspectRatio.num)),e.info.colorSpace={primaries:E[i.colourPrimaries],transfer:R[i.transferCharacteristics],matrix:A[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:hi({width:e.info.width,height:e.info.height,codec:e.info.codec,codecDescription:null,colorSpace:e.info.colorSpace,avcType:1,avcCodecInfo:e.info.avcCodecInfo,hevcCodecInfo:e.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:e.info.width,codedHeight:e.info.height,colorSpace:e.info.colorSpace},e.info.width===e.info.squarePixelWidth&&e.info.height===e.info.squarePixelHeight||(e.info.decoderConfig.displayAspectWidth=e.info.squarePixelWidth,e.info.decoderConfig.displayAspectHeight=e.info.squarePixelHeight),e.initialized=!0}else{if(yield r.markNextPacket(),!r.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${e.pid}`);if("aac"===e.info.codec){const t=Eo.tempFromBytes(r.suppliedPacket.data),i=In(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=qe[i.channelConfiguration],e.info.sampleRate=Ue[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=Lo(Eo.tempFromBytes(r.suppliedPacket.data)),i=Pi(t,r.suppliedPacket.data.byteLength);if(!i.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");e.info.numberOfChannels=Bi(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=Lt(r.suppliedPacket.data);if(!t)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(3===t.fscod)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Ot[t.acmod]+t.lfeon,e.info.sampleRate=je[t.fscod]}else if("eac3"===e.info.codec){const t=qt(r.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=Wt(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Ht(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=Jt(r.suppliedPacket.data);if(!t)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");e.info.numberOfChannels=t.numberOfChannels,e.info.sampleRate=t.sampleRate,t.core&&(e.info.dtsFormat=t.hasExtensions?"dtsh":"dtsc")}}e.info.decoderConfig={codec:mi({codec:e.info.codec,codecDescription:null,aacCodecInfo:e.info.aacCodecInfo,dtsFormat:e.info.dtsFormat}),numberOfChannels:e.info.numberOfChannels,sampleRate:e.info.sampleRate},e.initialized=!0}}}else{const e=new ze(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(12);const r=e.readBits(12);e.skipBits(43),e.readBits(13),e.skipBits(6);const n=e.readBits(10),l=e.pos+8*n;let c=!1;for(;e.pos=4){const t=e.readBits(32);c||(c=1212435798===t||1212436562===t)}e.pos=r}for(e.pos=l;8*(r+a)-e.pos>o;){const t=e.readBits(8);e.skipBits(3);const i=e.readBits(13);e.skipBits(6);const r=e.readBits(10),n=e.pos+8*r;let s=!1,a=!1,o=!1;for(;e.pos=4){const t=e.readBits(32);o||(o=1146376960===(4294967040&t))}e.pos=r}let l=null;const u=c&&Mn.has(t)?130:t;switch(u){case 27:case 36:l={type:"video",codec:27===t?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let e;e=3===u||4===u?"mp3":15===u?"aac":129===u?"ac3":135===u?"eac3":"dts",l={type:"audio",codec:e,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:a?l={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:s?l={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:o&&(l={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:Nn.has(t)||(Me._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),Nn.add(t))}l&&this.elementaryStreams.push({demuxer:this,pid:i,streamType:t,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:l,referencePesPackets:[]})}s=!0}else{const e=new ze(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(14);const s=e.readBits(10);for(e.skipBits(40);8*(s+a)-e.pos>o;){const t=e.readBits(16);e.skipBits(3);const i=e.readBits(13);if(0!==t){if(null!==r)throw new Error("Only files with a single program are supported.");r=i}}if(null===r)throw new Error("Program Association Table must link to a Program Map Table.");n=!0}if(s&&this.elementaryStreams.every(e=>e.initialized))break;i+=this.packetStride}if(!s){if(!n)throw new Error("No Program Association Table found in the file.");throw new Error("No Program Map Table found in the file.")}for(const a of this.elementaryStreams)a.initialized&&("video"===a.info.type?this.trackBackingEntries.push(new qn(a)):this.trackBackingEntries.push(new Wn(a)))}))()})}getTrackBackings(){return d(this,null,function*(){return yield this.readMetadata(),this.trackBackingEntries})}getMetadataTags(){return d(this,null,function*(){return{}})}getMimeType(){return d(this,null,function*(){yield this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${i.join(", ")}"`),t})(yield Promise.all(this.trackBackingEntries.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null}))))})}readSection(e,t,i=!1){return d(this,null,function*(){let r=e,n=e;const s=[];let a,o=0,l=null,c=!0,u=0;for(;;){const e=yield this.readPacket(n);if(n+=this.packetStride,!e)break;if(l){if(e.pid!==l.pid){if(i)break;continue}if(1===e.payloadUnitStartIndicator)break}else{if(0===e.payloadUnitStartIndicator)break;l=e}const a=!!(2&e.adaptationFieldControl),d=!!(1&e.adaptationFieldControl);let h=0;if(a&&(h=1+e.body[0],e===l&&h>1&&(u=e.body[1]>>6&1)),d&&(0===h?(s.push(e.body),o+=e.body.byteLength):(s.push(e.body.subarray(h)),o+=e.body.byteLength-h)),r=n,!t&&o>=64){c=!1;break}if(-1!==q(this.sectionEndPositions,r,e=>e)){c=!1;break}}if(c){const e=W(this.sectionEndPositions,r,e=>e);this.sectionEndPositions.splice(e+1,0,r)}if(!l)return null;if(1===s.length)a=s[0];else{const e=s.reduce((e,t)=>e+t.length,0);a=new Uint8Array(e);let t=0;for(const i of s)a.set(i,t),t+=i.length}return{startPos:e,endPos:t?r:null,pid:l.pid,payload:a,randomAccessIndicator:u}})}readPacketHeader(e){return d(this,null,function*(){let t=this.reader.requestSlice(e,4);if(Te(t)&&(t=yield t),!t)return null;if(71!==Fo(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=Do(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:Fo(t)>>4&3}})}readPacket(e){return d(this,null,function*(){let t=this.reader.requestSlice(e,An);if(Te(t)&&(t=yield t),!t)return null;const i=Ro(t,An);if(71!==i[0])throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const r=(i[1]<<8)+i[2];return{payloadUnitStartIndicator:r>>14&1,pid:8191&r,adaptationFieldControl:i[3]>>4&3,body:i.subarray(4)}})}normalizeTimestamp(e){if(!this.timestampWrapInfo){const t=54e5;this.timestampWrapInfo={reference:e-t,offset:e>=Fn-t?-Fn:Fn}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e{if(t.payload.byteLength<3)return null;const r=new ze(t.payload);if(1!==r.readBits(24))return null;const n=r.readBits(8);if(r.skipBits(16),188===n||190===n||191===n||240===n||241===n||255===n||242===n||248===n)return null;r.skipBits(8);const s=r.readBits(2);r.skipBits(14);let a=null;if(2===s||3===s)a=0,r.skipBits(4),a+=r.readBits(3)*(1<<30),r.skipBits(1),a+=32768*r.readBits(15),r.skipBits(1),a+=r.readBits(15),a=e.normalizeTimestamp(a);else if(i)throw new Error(Dn);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:a,randomAccessIndicator:t.randomAccessIndicator}},zn=(e,t,i)=>{y(null!==t.endPos);const r=Ln(e,t,i);if(!r)return null;const n=new ze(t.payload);n.skipBits(32);const s=n.readBits(16);n.skipBits(16);const a=n.readBits(8),o=n.pos+8*a;n.pos=o;const l=o/8;y(Number.isInteger(l));const d=t.payload.subarray(l,s>0?6+s:t.payload.byteLength);return u(c({},r),{data:d})};class Un{constructor(e){this.elementaryStream=e,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const e=this.elementaryStream.demuxer,t=this.elementaryStream.info.type;let i=0;for(const r of e.trackBackingEntries)if(r.getType()===t&&i++,y(r instanceof Un),r.elementaryStream===this.elementaryStream)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return Z}getDisposition(){return u(c({},Le),{primary:!1})}getTimeResolution(){return Rn}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return d(this,null,function*(){return null})}getLiveRefreshInterval(){return d(this,null,function*(){return null})}createEncodedPacket(e,t,i){let r;return r=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new Ri(i.metadataOnly?_i:e.data,r,e.pts/Rn,Math.max(t/Rn,0),e.sequenceNumber,e.data.byteLength)}getFirstPacket(e){return d(this,null,function*(){const t=this.elementaryStream.firstSection;y(t);const i=zn(this.elementaryStream.demuxer,t,!0);y(i);const r=new Vn(this.elementaryStream,i),n=new jn(this,r),s=yield n.readNext();if(!s)return null;const a=this.createEncodedPacket(s.packet,s.duration,e);return this.packetBuffers.set(a,n),this.packetSectionStarts.set(a,s.packet.sectionStartPos),a})}getNextPacket(e,t){return d(this,null,function*(){let i=this.packetBuffers.get(e);if(i){const r=yield i.readNext();if(!r)return null;this.packetBuffers.delete(e);const n=this.createEncodedPacket(r.packet,r.duration,t);return this.packetBuffers.set(n,i),this.packetSectionStarts.set(n,r.packet.sectionStartPos),n}const r=this.packetSectionStarts.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");const n=this.elementaryStream.demuxer,s=yield n.readSection(r,!0);y(s);const a=zn(n,s,!0);y(a);const o=new Vn(this.elementaryStream,a);i=new jn(this,o);const l=e.sequenceNumber;for(;;){const e=yield i.readNext();if(!e)return null;if(e.packet.sequenceNumber>l){const r=this.createEncodedPacket(e.packet,e.duration,t);return this.packetBuffers.set(r,i),this.packetSectionStarts.set(r,e.packet.sectionStartPos),r}}})}getNextKeyPacket(e,t){return d(this,null,function*(){let i=e;for(;;){if(i=yield this.getNextPacket(i,t),!i)return null;if("key"===i.type)return i}})}getPacket(e,t){return this.doPacketLookup(e,!1,t)}getKeyPacket(e,t){return this.doPacketLookup(e,!0,t)}doPacketLookup(e,t,i){return d(this,null,function*(){var r,n,s,a,o,l;const c=ee(e*Rn),u=this.elementaryStream.demuxer,{reader:h,seekChunkSize:f}=u,m=this.elementaryStream.pid,p=(e,t,i)=>d(this,null,function*(){let r=e;for(;re.pts),w=-1!==S?v[S]:null;if(w&&c-w.pts<45e3)b=w.sectionStartPos;else{let e=0;if(null!==h.fileSize){const t=Math.ceil(h.fileSize/f);if(t>1){let i=0,r=t-1;for(e=i;i<=r;){const t=Math.floor((i+r)/2),n=re(t*f,u.packetStride)+k.sectionStartPos,s=n+f,a=yield p(n,s,!1);a?a.pesPacketHeader.pts<=c?(e=t,i=t+1):r=t-1:r=t-1}}}b=re(e*f,u.packetStride)+k.sectionStartPos}const P=yield p(b,null!=(r=h.fileSize)?r:1/0,!1);let I=null!=(n=null==P?void 0:P.pesPacketHeader)?n:null;I||(I=k);const x=this.getReorderSize(),C=(e,t)=>d(this,null,function*(){var r,n;const s=yield u.readSection(e,!0);y(s);const a=zn(u,s,!0);y(a);const o=new Vn(this.elementaryStream,a),l=new jn(this,o);for(;;){if((null!=(n=null==(r=T(l.presentationOrderPackets))?void 0:r.pts)?n:-1/0)>=c)break;if(!(yield l.readNextPacket()))break}const d=X(l.presentationOrderPackets,t);if(-1===d)return null;const h=l.presentationOrderPackets[d],f=0===d?0:h.pts-l.presentationOrderPackets[d-1].pts;for(;l.decodeOrderPackets[0]!==h;)l.decodeOrderPackets.shift();l.lastDuration=f;const m=yield l.readNext();y(m);const p=this.createEncodedPacket(m.packet,m.duration,i);return this.packetBuffers.set(p,l),this.packetSectionStarts.set(p,m.packet.sectionStartPos),p});if(!t||this.allPacketsAreKeyPackets()){e:for(;;){let e=I.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===m&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Ln(u,t,!1);if(e&&null!==e.pts){if(e.pts>c)break e;I=e,Hn(this.elementaryStream,I);break}}}e+=u.packetStride}}e:for(let e=0;e=u.packetOffset;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===m&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Ln(u,t,!1);if(e&&null!==e.pts){I=e;break}}}e-=u.packetStride}}return C(I.sectionStartPos,e=>e.pts<=c)}{let e=b,t=null;const i=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let r=null;const n=e<=k.sectionStartPos;let d,b=null;if(n)d=k,b=g;else{const t=yield p(e,null!=(s=h.fileSize)?s:1/0,i);d=null!=(a=null==t?void 0:t.pesPacketHeader)?a:null,b=null!=(o=null==t?void 0:t.section)?o:null}let T=!1,v=0;e:for(;d&&!(null!==t&&d.sectionStartPos>=t);){if(d.pts<=c){let e;if(this.elementaryStream.canBeTrustedWithKeyPackets)e=1===d.randomAccessIndicator;else{y(b);const t=zn(u,b,!0);y(t);const i=new Vn(this.elementaryStream,t);yield i.markNextPacket(),e=1===(null==(l=i.suppliedPacket)?void 0:l.randomAccessIndicator)}e&&(r=d)}if(d.pts>c&&(T=!0),T&&(v++,v>x))break;let e=d.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===m&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,i);if(t){const e=Ln(u,t,!1);if(e&&null!==e.pts){d=e,b=t,Hn(this.elementaryStream,d);break}}}e+=u.packetStride}}if(r){let e=r;if(0===v)e:for(let r=0;r=u.packetOffset;){const r=yield u.readPacketHeader(t);if(!r)break e;if(r.pid===m&&1===r.payloadUnitStartIndicator){const r=yield u.readSection(t,i);if(r){const t=Ln(u,r,!1);if(t&&null!==t.pts){e=t;break}}}t-=u.packetStride}}const t=yield C(e.sectionStartPos,e=>e.pts<=c&&1===e.randomAccessIndicator);return y(t),t}if(n)return null;t=e,e=Math.max(re(e-k.sectionStartPos-f,u.packetStride)+k.sectionStartPos,k.sectionStartPos)}}})}}class qn extends Un{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}getColorSpace(){return d(this,null,function*(){return this.elementaryStream.info.colorSpace})}canBeTransparent(){return d(this,null,function*(){return!1})}getDecoderConfig(){return d(this,null,function*(){return y(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class Wn extends Un{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}getDecoderConfig(){return d(this,null,function*(){return y(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const Hn=(e,t)=>{const i=e.referencePesPackets,r=W(i,t.sectionStartPos,e=>e.sectionStartPos);if(r>=0){const n=i[r];if(t.pts<=n.pts)return!1;const s=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-n.sectionStartPos=e?e:this.bufferData(e-t).then(()=>Math.min(this.endPos-this.currentPos,e))}getCurrentPesPacket(){const e=this.pesPackets[this.currentPesPacketIndex];return y(e),e}bufferData(e){return d(this,null,function*(){const t=this.endPos+e;for(;this.endPos=c)break;u=t;const r=o+u;if(u+3>=c){this.seekTo(r);break}const d=l[u+1],h=l[u+2],f=l[u+3];let m=0;if(0===d&&0===h&&1===f?m=4:0===d&&1===h&&(m=3),0===m){u++;continue}const p=r;null!=n||(n=p);const g=u+m,k=g+i,y=6;if(k+("avc"===e?y:1)>c){this.seekTo(r);break}const b=l[g];let T,S,w;if("avc"===e)T=et(b),S=T===Xe.NON_IDR_SLICE||T===Xe.SLICE_DPA||T===Xe.IDR,w=T===Xe.SEI||T===Xe.SPS||T===Xe.PPS||T===Xe.AUD;else{T=ft(b);if(((1&b)<<5|l[g+1]>>3)>0){u+=m;continue}S=T<=Ge.RASL_R||T>=Ge.BLA_W_LP&&T<=21,w=T>=Ge.VPS_NUT&&T<=37||T===Ge.PREFIX_SEI_NUT||T>=41&&T<=44||T>=48&&T<=55}let P=!1;if(S){let t;if("avc"===e){const e=l.subarray(k,k+y),i=v(new ze(e));t=!s||i<=a,a=i}else t=l[k]>>7===1;t&&(s?P=!0:s=!0)}else w&&s&&(P=!0);if(P){const e=p-n;return this.seekTo(n),this.supplyPacket(e,0)}u+=m}if(rn){const e=this.endPos-n;return this.seekTo(n),this.supplyPacket(e,0)}}else{const n=r.info.codec,s=128;for(;;){let a=this.ensureBuffered(s);Te(a)&&(a=yield a);const o=this.currentPos;for(;this.currentPos-o>6,a=63&i[4];if(3===n||a>37){this.seekTo(e+1);continue}const o=zt[3*a+n];y(void 0!==o),this.seekTo(e),t=this.ensureBuffered(o),Te(t)&&(t=yield t);const l=Math.round(13824e4/r.info.sampleRate);return this.supplyPacket(t,l)}if("eac3"===n){if(11!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(5);if(Te(t)&&(t=yield t),t<5)return;const i=this.readBytes(5);if(11!==i[0]||119!==i[1]){this.seekTo(e+1);continue}const n=2*(((7&i[2])<<8|i[3])+1),a=3===i[4]>>6?3:i[4]>>4&3,o=Ut[a];this.seekTo(e),t=this.ensureBuffered(n),Te(t)&&(t=yield t);const l=256*o,c=Math.round(l*Rn/r.info.sampleRate);return this.supplyPacket(t,c)}if("dts"===n){if(127!==s&&100!==s)continue;this.skip(-1);const n=this.currentPos;let a=this.ensureBuffered(18);if(Te(a)&&(a=yield a),a<18)return;const o=this.readBytes(18),l=ei(o);let c=l?null:ti(o);if(!l&&!c){this.seekTo(n+1);continue}if(c&&!c.asset){this.seekTo(n);const t=Math.min(c.frameSize,4096);let i=this.ensureBuffered(t);Te(i)&&(i=yield i),c=null!=(e=ti(this.readBytes(i)))?e:c}let u=l?l.frameSize:c.frameSize;if(l){let e=4*Math.ceil(l.frameSize/4);for(;;){this.seekTo(n);const t=e+10;let i=this.ensureBuffered(t);if(Te(i)&&(i=yield i),i=0)}readNext(){return d(this,null,function*(){if(0===this.decodeOrderPackets.length){if(!(yield this.readNextPacket()))return null}yield this.ensureCurrentPacketHasNext();const e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e);let i;if(y(-1!==t),t===this.presentationOrderPackets.length-1)i=this.lastDuration;else{i=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=i}for(this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const e=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(e))break;this.presentationOrderPackets.shift()}return{packet:e,duration:i}})}readNextPacket(){return d(this,null,function*(){if(this.reachedEnd)return!1;let e;return this.context.suppliedPacket||(yield this.context.markNextPacket()),e=this.context.suppliedPacket,this.context.suppliedPacket=null,e?(this.decodeOrderPackets.push(e),this.processPacketThroughReorderBuffer(e),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)})}ensureCurrentPacketHasNext(){return d(this,null,function*(){const e=this.decodeOrderPackets[0];for(y(e);;){const t=this.presentationOrderPackets.indexOf(e);if(-1!==t&&t<=this.presentationOrderPackets.length-2)break;if(!(yield this.readNextPacket()))break}})}processPacketThroughReorderBuffer(e){if(this.reorderBuffer.push(e),this.reorderBuffer.length>this.reorderSize){let e=0;for(let i=1;ie.pts-t.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const Kn="application/vnd.apple.mpegurl",Xn="#EXT-X-STREAM-INF:",$n="#EXT-X-I-FRAME-STREAM-INF:",Gn="#EXT-X-MEDIA:",Qn="#EXTINF:",Yn="#EXT-X-MAP:",Jn="#EXT-X-KEY:",Zn="#EXT-X-MEDIA-SEQUENCE:",es="#EXT-X-BYTERANGE:",ts="#EXT-X-PROGRAM-DATE-TIME:",is="#EXT-X-TARGETDURATION:",rs="#EXT-X-PLAYLIST-TYPE:",ns=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class ss{constructor(e){this._attributes={};let t="",i="",r=!1,n=!1;for(let s=0;sd(this,null,function*(){const e=[];if(this.trackDeclarations){for(const t of this.trackDeclarations)if("video"===t.type){const i=Ce(e,e=>"video"===e.getType())+1;e.push(new ls(this,t,i))}else if("audio"===t.type){const i=Ce(e,e=>"audio"===e.getType())+1;e.push(new cs(this,t,i))}}else{if(this.firstSegment=yield this.getFirstSegment({}),!this.firstSegment)return[];const t=this.getInputForSegment(this.firstSegment),i=yield t.getTracks();for(const r of i)if("video"===r.type){const t=Ce(e,e=>"video"===e.getType())+1;e.push(new ls(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=Ce(e,e=>"audio"===e.getType())+1;e.push(new cs(this,{id:e.length+1,type:"audio"},t))}}return e}))()})}getFirstTimestampForInput(e){return d(this,null,function*(){const t=this.firstTimestampCache.get(e);if(void 0!==t)return t;const i=yield e.getFirstTimestamp();return this.firstTimestampCache.set(e,i),i})}getMediaOffset(e,t){return d(this,null,function*(){var i;const r=null!=(i=e.firstSegment)?i:e;let n;if(this.firstSegmentFirstTimestamps.has(r))n=this.firstSegmentFirstTimestamps.get(r);else{const e=this.getInputForSegment(r);n=yield this.getFirstTimestampForInput(e),this.firstSegmentFirstTimestamps.set(r,n)}if(r===e)return r.timestamp-n;const s=yield this.getFirstTimestampForInput(t),a=e.timestamp-r.timestamp,o=s-n-a;return Math.abs(o)<=Math.min(.25,a)?r.timestamp-n:e.timestamp-s})}dispose(){for(const e of this.inputCache)e.input.dispose();this.inputCache.length=0}}class os{constructor(e,t,i){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.firstSegment=null,this.segmentedInput=e,this.decl=t,this.number=i}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>d(this,null,function*(){var e,t;if(null!=(e=this.segmentedInput).firstSegment||(e.firstSegment=yield this.segmentedInput.getFirstSegment({})),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let i=this.segmentedInput.firstSegment,r=null;for(;i;){const e=this.segmentedInput.getInputForSegment(i);if(r=null!=(t=(yield e.getTracks()).find(e=>e.type===this.decl.type&&e.number===this.number))?t:null,r)break;i=yield this.segmentedInput.getNextSegment(i,{})}if(!r)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=r,this.firstSegment=i}))()}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(e){return this.firstInputTrack?e():this.hydrate().then(e)}getDecoderConfig(){return d(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}getHasOnlyKeyPackets(){return this.delegate(()=>{var e,t,i;return null!=(i=null==(t=(e=this.firstInputTrack._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:null})}getPairingMask(){return BigInt("1")}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}isRelativeToUnixEpoch(){return d(this,null,function*(){return yield this.hydrate(),y(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp})}getUnixTimeForTimestamp(e){return this.segmentedInput.getUnixTimeForTimestamp(e)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(e){return this.segmentedInput.getDurationFromMetadata(e)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}createAdjustedPacket(e,t,i){return d(this,null,function*(){y(e.sequenceNumber>=0),y(this.segmentedInput.firstSegment);const r=yield this.segmentedInput.getMediaOffset(t,i.input),n=t.timestamp-this.segmentedInput.firstSegment.timestamp,s=e.clone({timestamp:ie(e.timestamp+r,yield i.getTimeResolution()),sequenceNumber:Math.floor(1e8*n)+e.sequenceNumber});return this.packetInfos.set(s,{segment:t,track:i,sourcePacket:e}),s})}getFirstPacket(e){return d(this,null,function*(){var t;yield this.hydrate(),y(this.firstInputTrack),y(this.firstSegment);let i=this.firstInputTrack,r=this.firstSegment;for(;;){if(i){const t=yield i._backing.getFirstPacket(e);if(t)return this.createAdjustedPacket(t,r,i)}if(r=yield this.segmentedInput.getNextSegment(r,{skipLiveWait:e.skipLiveWait}),!r)break;const n=this.segmentedInput.getInputForSegment(r);i=null!=(t=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number))?t:null}return null})}getNextPacket(e,t){return this._getNextInternal(e,t,!1)}getNextKeyPacket(e,t){return this._getNextInternal(e,t,!0)}_getNextInternal(e,t,i){return d(this,null,function*(){const r=this.packetInfos.get(e);if(!r)throw new Error("Packet was not created from this track.");const n=i?yield r.track._backing.getNextKeyPacket(r.sourcePacket,t):yield r.track._backing.getNextPacket(r.sourcePacket,t);if(n)return this.createAdjustedPacket(n,r.segment,r.track);let s=r.segment;for(;;){const e=yield this.segmentedInput.getNextSegment(s,{skipLiveWait:t.skipLiveWait});if(!e)return null;const i=this.segmentedInput.getInputForSegment(e),n=(yield i.getTracks()).find(e=>e.type===r.track.type&&e.number===r.track.number);if(!n){s=e;continue}const a=yield n._backing.getFirstPacket(t);return a?this.createAdjustedPacket(a,e,n):null}})}getPacket(e,t){return this._getPacketInternal(e,t,!1)}getKeyPacket(e,t){return this._getPacketInternal(e,t,!0)}_getPacketInternal(e,t,i){return d(this,null,function*(){let r=yield this.segmentedInput.getSegmentAt(e,{skipLiveWait:t.skipLiveWait});if(!r)return null;for(yield this.hydrate();r;){const n=this.segmentedInput.getInputForSegment(r),s=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number);if(!s){r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait});continue}const a=yield this.segmentedInput.getMediaOffset(r,n),o=e-a,l=i?yield s._backing.getKeyPacket(o,t):yield s._backing.getPacket(o,t);if(l)return this.createAdjustedPacket(l,r,s);r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait})}return null})}}class ls extends os{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}getColorSpace(){return d(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())})}canBeTransparent(){return d(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())})}getDecoderConfig(){return d(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}class cs extends os{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}getDecoderConfig(){return d(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}Pe();const us=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class ds extends Fe{constructor(){super(),this._disposed=!1,this._refCount=0,this._usedForHls=!1,this._refFinalizationRegistry=null,this._sizePromise=null,this.onread=null,"undefined"!==typeof FinalizationRegistry&&(this._refFinalizationRegistry=new FinalizationRegistry(e=>{e._decrementRefCount()}))}getSizeOrNull(){return d(this,null,function*(){var e;if(this._disposed)throw new Co;return null!=(e=this._sizePromise)?e:this._sizePromise=(()=>d(this,null,function*(){let e=this._getFileSize();return void 0!==e||(yield this._read(0,1,0,us),e=this._getFileSize(),y(void 0!==e)),e}))()})}getSize(){return d(this,null,function*(){if(this._disposed)throw new Co;const e=yield this.getSizeOrNull();if(null===e)throw new Error("Cannot determine the size of an unsized source.");return e})}slice(e,t){if(!Number.isInteger(e)||e<0)throw new TypeError("offset must be a non-negative integer.");if(void 0!==t&&(!Number.isInteger(t)||t<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new Cs(this,e,t)}_dispatchRead(e,t){var i;null==(i=this.onread)||i.call(this,e,t),this._emit("read",{start:e,end:t})}ref(){return new hs(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class hs{constructor(e){var t;if(this._freed=!1,e._disposed)throw new Error("Cannot ref a disposed source.");e._incrementRefCount(),null==(t=e._refFinalizationRegistry)||t.register(this,e,this),this._source=e}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){var e;if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const t=this.source;y(t._refCount>0),t._decrementRefCount(),null==(e=t._refFinalizationRegistry)||e.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class fs extends ds{constructor(e,t){if("string"!==typeof e)throw new TypeError("rootPath must be a string.");if("function"!==typeof t)throw new TypeError("requestHandler must be a function.");super(),this.rootPath=e,this.requestHandler=t}_resolveRequest(e){const t=this.requestHandler(e),i=e=>{var t;if(!(e instanceof ds||e instanceof hs))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof ds?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return Te(t)?t.then(i):i(t)}}const ms=(e,t)=>e.path===t.path;class ps extends fs{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(e,t,i,r){if(!this._root){if(!this._rootRequest){const e=this._resolveRequest({path:this.rootPath,isRoot:!0}),t=e=>{const t=e instanceof ds?e.ref():e;return this._root=t,this._rootRequest=null,t};Te(e)?this._rootRequest=e.then(t):(t(e),y(this._root))}if(this._rootRequest)return this._rootRequest.then(n=>n.source._read(e,t,i,r))}return this._root.source._read(e,t,i,r)}_getFileSize(){if(this._root)return this._root.source._getFileSize()}_dispose(){this._root?this._root.free():this._rootRequest&&this._rootRequest.then(e=>e.free())}}const gs="undefined"!==typeof FinalizationRegistry?new FinalizationRegistry(e=>{e.cancel().catch(()=>{})}):null;class ks extends ds{constructor(e,t={}){var i;if(!(e instanceof Blob))throw new TypeError("blob must be a Blob.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.maxCacheSize&&(!Ie(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.useStreamReader&&"boolean"!==typeof t.useStreamReader)throw new TypeError("options.useStreamReader, when provided, must be a boolean.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(),this._readers=new WeakMap,this._blob=e,this._options=t,this._orchestrator=new xs({maxCacheSize:null!=(i=t.maxCacheSize)?i:8*o(2,20),maxWorkerCount:4,runWorker:this._runWorker.bind(this),onIdleWorkerRemoved:e=>{const t=this._readers.get(e);t&&(this._readers.delete(e),null==gs||gs.unregister(e),t.cancel().catch(()=>{}))},prefetchProfile:Is.fileSystem,handleUnhandledError:t.handleUnhandledError}),this._orchestrator.fileSize=e.size}_getFileSize(){return this._orchestrator.fileSize}_read(e,t,i,r){return this._orchestrator.read(e,t,i,r)}_runWorker(e){return d(this,null,function*(){y(e.strictTarget);let t=this._readers.get(e);if(void 0===t){if("stream"in this._blob&&!fe()&&!1!==this._options.useStreamReader){t=this._blob.slice(e.currentPos).stream().getReader(),null==gs||gs.register(e,t,e)}else t=null;this._readers.set(e,t)}for(;e.currentPos{if(t instanceof Error&&(t.message.includes("Failed to fetch")||t.message.includes("Load failed")||t.message.includes("NetworkError when attempting to fetch resource"))&&"undefined"!==typeof window){let e=null;try{"undefined"!==typeof window&&"undefined"!==typeof window.location&&(e=new URL(i instanceof Request?i.url:i,window.location.href).origin)}catch(r){}if(("undefined"===typeof navigator||"boolean"!==typeof navigator.onLine||navigator.onLine)&&null!==e&&e!==window.location.origin)return Me._warn("Request will not be retried because a CORS error was suspected due to different origins. You can modify this behavior by providing your own function for the 'getRetryDelay' option."),null}return Math.min(o(2,e-2),16)},Ts=new Set;class vs extends fs{constructor(e,t={}){var i,r,n,s;if("string"!==typeof e&&!(e instanceof URL)&&!("undefined"!==typeof Request&&e instanceof Request))throw new TypeError("url must be a string, URL or Request.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.requestInit&&(!t.requestInit||"object"!==typeof t.requestInit))throw new TypeError("options.requestInit, when provided, must be an object.");if(void 0!==t.getRetryDelay&&"function"!==typeof t.getRetryDelay)throw new TypeError("options.getRetryDelay, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!Ie(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.parallelism&&(!Number.isInteger(t.parallelism)||t.parallelism<1))throw new TypeError("options.parallelism, when provided, must be a positive number.");if(void 0!==t.fetchFn&&"function"!==typeof t.fetchFn)throw new TypeError("options.fetchFn, when provided, must be a function.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(e instanceof Request?e.url:e instanceof URL?e.href:e,e=>new vs(e.path,this._options)),this._offset=0,this._length=null,this._fileSizeDetermined=!1,this._sequentialBacking=null,this._url=e,this._options=t,this._getRetryDelay=null!=(i=t.getRetryDelay)?i:bs,this._requestInit=c({},t.requestInit);let a=null;if(null==(r=t.requestInit)?void 0:r.headers){const e=c({},ce(t.requestInit.headers)),i=Object.keys(e).find(e=>"range"===e.toLowerCase());void 0!==i&&(a=e[i],delete e[i],this._requestInit.headers=e)}if(e instanceof Request){const t=e.headers.get("Range");if(null!==t){null!=a||(a=t);const i=new Request(e);i.headers.delete("Range"),this._url=i}}if(null!==a){const e=ws(a);e&&(this._offset=e.offset,this._length=e.length)}this._orchestrator=new xs({maxCacheSize:null!=(n=t.maxCacheSize)?n:64*o(2,20),maxWorkerCount:null!=(s=t.parallelism)?s:2,runWorker:this._runWorker.bind(this),prefetchProfile:Is.network,handleUnhandledError:t.handleUnhandledError})}_getFileSize(){var e;if(!this._fileSizeDetermined)return null!==this._length?this._length:void 0;const t=this._sequentialBacking?this._sequentialBacking._endIndex:this._orchestrator.fileSize;return null===t?null!==this._length?this._length:null:J(t-this._offset,0,null!=(e=this._length)?e:1/0)}_read(e,t,i,r){var n;if(null!==this._length&&t>this._length)return null;const s=this._offset,a=this._sequentialBacking?this._sequentialBacking._read(s+e,s+t):this._orchestrator.read(s+e,s+t,Math.max(s+i,s),s+Math.min(r,null!=(n=this._length)?n:1/0)),o=e=>e?(e.offset-=this._offset,e):null;return Te(a)?a.then(o):o(a)}_runWorker(e){return d(this,null,function*(){for(var t;;){const r=new AbortController,n=yield ue(null!=(t=this._options.fetchFn)?t:fetch,this._url,le(this._requestInit,{headers:{Range:`bytes=${e.currentPos}-`},signal:r.signal}),this._getRetryDelay,()=>this._disposed);if(!n.ok)throw new Error(`Error fetching ${String(this._url)}: ${n.status} ${n.statusText}`);n.redirected&&(this.rootPath=n.url);e:if(null===this._orchestrator.fileSize&&(206===n.status||"basic"===n.type&&!n.headers.has("Content-Encoding"))){const t=n.headers.get("Content-Range");if(t){const e=/\/(\d+)/.exec(t);if(e){this._orchestrator.supplyFileSize(Number(e[1]));break e}}const i=n.headers.get("Content-Length");if(i){const t=206===n.status?e.currentPos:0;this._orchestrator.supplyFileSize(t+Number(i))}}if(this._fileSizeDetermined=!0,!n.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");if(206!==n.status){if(this._sequentialBacking)return void n.body.cancel();if(!this._usedForHls){const e=new URL(this._url instanceof Request?this._url.url:this._url,"undefined"!==typeof window?window.location.href:void 0);"null"===e.origin||e.pathname.endsWith(".m3u8")||e.pathname.endsWith(".m3u")||Ts.has(e.origin)||(Me._warn(`HTTP server (origin ${e.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. Alternatively, set maxCacheSize to Infinity in the UrlSource options to keep the entire resource in memory.`),Ts.add(e.origin))}return void this._transitionToSequentialMode(n.body)}const s=n.body.getReader();for(;;){if(e.currentPos>=e.targetPos||e.aborted)return r.abort(),void this._orchestrator.signalWorkerStoppedRunning(e);let t;try{t=yield s.read()}catch(i){if(this._disposed)throw i;const e=this._getRetryDelay(1,i,this._url);if(null!==e){Me._error("Error while reading response stream. Attempting to resume.",i),yield Re(1e3*e);break}throw i}if(e.aborted)continue;const{done:n,value:a}=t;if(n){if(e.currentPos>=e.targetPos)return void this._orchestrator.onWorkerFinished(e);if(e.strictTarget)break;return void this._orchestrator.onWorkerFinished(e)}this._dispatchRead(e.currentPos,e.currentPos+a.length),this._orchestrator.supplyWorkerData(e,a)}}})}_transitionToSequentialMode(e){let t=e.getReader(),i=0,r=0;const n=new ReadableStream({pull:e=>d(this,null,function*(){for(var n;;){let a;try{a=yield t.read()}catch(s){if(this._disposed)throw s;const e=this._getRetryDelay(1,s,this._url);if(null===e)throw s;Me._error("Error while reading response stream. Attempting to resume.",s),yield Re(1e3*e);const a=yield ue(null!=(n=this._options.fetchFn)?n:fetch,this._url,le(this._requestInit,{headers:{Range:`bytes=${i}-`}}),this._getRetryDelay,()=>this._disposed);if(!a.ok)throw new Error(`Error fetching ${String(this._url)}: ${a.status} ${a.statusText}`);if(!a.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");t=a.body.getReader(),r=206===a.status?0:i;continue}if(a.done)return void e.close();let o=a.value;if(r>0){const e=Math.min(r,o.length);r-=e,o=o.subarray(e)}if(0!==o.length)return i+=o.length,void e.enqueue(o)}}),cancel:()=>t.cancel()}),s=new Ps(n,{maxCacheSize:this._orchestrator.options.maxCacheSize,handleUnhandledError:this._options.handleUnhandledError});s._endIndex=this._orchestrator.fileSize,s._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. Because the HTTP server did not honor the range request, data can only be read sequentially, with old data being evicted from the cache. To fix this issue, either ensure your server responds to range requests with 206 Partial Content, or set maxCacheSize to Infinity in the UrlSource options. Note that the latter will store the entire file in the cache if needed, no matter how large.",s.on("read",({start:e,end:t})=>this._dispatchRead(e,t)),this._sequentialBacking=s;const a=new Set;for(const o of this._orchestrator.workers){for(const e of o.pendingSlices)a.add(e);o.aborted=!0,o.pendingSlices.length=0}for(const o of this._orchestrator.queuedReads)for(const e of o.pendingSlices)a.add(e);this._orchestrator.workers.length=0,this._orchestrator.queuedReads.length=0;for(const o of a){const e=s._read(o.start,o.start+o.bytes.length);Te(e)?e.then(e=>{e?(y(e.offset===o.start),o.resolve(e.bytes)):o.resolve(null)},e=>o.reject(e)):(y(null===e),o.resolve(null))}}_dispose(){this._orchestrator.dispose(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}}const Ss=/^bytes=(\d+)-(\d*)$/,ws=e=>{const t=Ss.exec(e.trim());if(!t)return null;const i=Number(t[1]),r=""===t[2]?null:Number(t[2]);return null!==r&&rthis._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);const i=W(this._cache,e,e=>e.start),r=-1!==i?this._cache[i]:null;if(r&&r.start<=e&&t<=r.end)return{bytes:r.bytes,view:r.view,offset:r.start};let n=e;const s=new Uint8Array(t-e);if(-1!==i)for(let c=i;c=t)break;const r=Math.max(e,i.start);r>n&&this._throwDueToCacheMiss();const a=Math.min(t,i.end);rn&&this._throwDueToCacheMiss();const{promise:a,resolve:o,reject:l}=V();return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:o,reject:l}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(e=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(t=>t.reject(e)),this._pendingSlices.length=0;else{if(!this._handleUnhandledError)throw e;this._handleUnhandledError(e)}})),a}_throwDueToCacheMiss(){throw new Error(this._cacheMissErrorMessage)}_pull(){return d(this,null,function*(){for(null!=this._reader||(this._reader=this._stream.getReader());this._currentIndex0;){const e=this._cache[0];if(this._maxRequestedIndex-e.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=t.byteLength}this._pulling=!1})}_dispose(){var e;for(const t of this._pendingSlices)t.reject(new Co);this._pendingSlices.length=0,this._cache.length=0,null==(e=this._reader)||e.cancel()}}const Is={fileSystem:(e,t)=>{const i=o(2,16);return{start:e=Math.floor((e-i)/i)*i,end:t=Math.ceil((t+i)/i)*i}},network:(e,t,i)=>{const r=o(2,16);e=Math.max(0,Math.floor((e-r)/r)*r);for(const n of i){const i=8*o(2,20),r=Math.max((n.startPos+n.targetPos)/2,n.targetPos-i);if(Se(e,t,r,n.targetPos)){const e=n.targetPos-n.startPos,r=Math.ceil((e+1)/i)*i,s=o(2,Math.ceil(Math.log2(e+1))),a=Math.min(s,r);t=Math.max(t,n.startPos+a)}}return{start:e,end:t=Math.max(t,e+ys)}}};class xs{constructor(e){this.options=e,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(e,t,i,r){var n;y(!this.disposed);const s=this.options.prefetchProfile(e,t,this.workers),a=Math.max(s.start,i),o=Math.min(s.end,null!=(n=this.fileSize)?n:1/0,r);y(a<=e&&t<=o);let l=null;const c=W(this.cache,e,e=>e.start),u=-1!==c?this.cache[c]:null;u&&u.start<=e&&t<=u.end&&(u.age=this.nextAge++,l={bytes:u.bytes,view:u.view,offset:u.start});const d=W(this.cache,a,e=>e.start),h=l?null:new Uint8Array(t-e);let f=0,m=a;const p=[];if(-1!==d){for(let i=d;i=o)break;if(r.end<=a)continue;const n=Math.max(a,r.start),s=Math.min(o,r.end);if(y(n<=s),m=h.length&&(l={bytes:h,view:I(h),offset:e}),0===p.length)return y(l),l;const{promise:g,resolve:k,reject:b}=V(),T=[];for(const y of p){const i=Math.max(e,y.start),r=Math.min(t,y.end);i===y.start&&r===y.end?T.push(y):ie.hole.start),i=-1!==t?this.queuedReads[t]:null;for(i&&y.start<=i.hole.end?(i.hole.end=Math.max(i.hole.end,y.end),i.strictTarget&&(i.strictTarget=e),v&&i.pendingSlices.push(v)):(t++,i={hole:{start:y.start,end:y.end},strictTarget:e,pendingSlices:v?[v]:[],age:this.nextAge++},this.queuedReads.splice(t,0,i));t+1i.hole.end)break;i.hole.end=Math.max(i.hole.end,e.hole.end),i.pendingSlices.push(...e.pendingSlices),i.strictTarget&&(i.strictTarget=e.strictTarget),i.age=Math.min(i.age,e.age),this.queuedReads.splice(t+1,1)}}}return l?g.catch(e=>{if(!this.disposed){if(!this.options.handleUnhandledError)throw e;this.options.handleUnhandledError(e)}}):(y(h),l=g.then(t=>t&&{bytes:t,view:I(t),offset:e})),l}checkHoleAgainstWorker(e,t,i){const r=o(2,17);if(Se(t.start-r,t.start,e.currentPos,e.targetPos)){e.targetPos=Math.max(e.targetPos,t.end);for(let t=0;t=this.options.maxWorkerCount){let e=null,t=null;for(let i=0;i{if(e.running=!1,e.pendingSlices.length>0)e.pendingSlices.forEach(e=>e.reject(t)),e.pendingSlices.length=0;else if(!e.aborted&&!this.disposed){if(!this.options.handleUnhandledError)throw t;this.options.handleUnhandledError(t)}}).finally(()=>{if(!e.running&&this.queuedReads.length>0){let e=0;for(let r=1;re.targetPos&&(e.targetPos=e.currentPos,this.checkQueuedReadsAgainstWorker(e));for(let a=0;at.start&&(t.start=s),t.end<=t.start&&(i.holes.splice(e,1),e--)}0===i.holes.length&&(i.resolve(i.bytes),e.pendingSlices.splice(a,1),a--)}for(let a=0;ae){r.resolve(null),t.pendingSlices.splice(i,1),i--;break}}}for(let t=0;t=e){for(const e of i.pendingSlices)e.resolve(null);this.queuedReads.splice(t,1),t--}else if(i.hole.end>e){i.hole.end=e,i.strictTarget=!0;for(let t=0;t=e&&(r.resolve(null),i.pendingSlices.splice(t,1),t--)}}}}signalWorkerStoppedRunning(e){e.running=!1,e.aborted||(e.pendingSlices.length=0)}onWorkerFinished(e){var t,i;const r=this.workers.indexOf(e);y(-1!==r),e.running=!1,this.workers.splice(r,1),null==(i=(t=this.options).onIdleWorkerRemoved)||i.call(t,e),null===this.fileSize&&this.supplyFileSize(e.currentPos);for(const n of e.pendingSlices)n.resolve(null)}insertIntoCache(e){if(0===this.options.maxCacheSize)return;let t=W(this.cache,e.start,e=>e.start)+1;if(t>0){const i=this.cache[t-1];if(i.end>=e.end)return;if(i.end>e.start){const r=new Uint8Array(e.end-i.start);r.set(i.bytes,0),r.set(e.bytes,e.start-i.start),this.currentCacheSize+=e.end-i.end,i.bytes=r,i.view=I(r),i.end=e.end,t--,e=i}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length;for(let i=t+1;i=t.end){this.cache.splice(i,1),this.currentCacheSize-=t.bytes.length,i--;continue}const r=new Uint8Array(t.end-e.start);r.set(e.bytes,0),r.set(t.bytes,t.start-e.start),this.currentCacheSize-=e.end-t.start,e.bytes=r,e.view=I(r),e.end=t.end,this.cache.splice(i,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let e=0,t=this.cache[0];for(let i=1;ithis._length)return null;const n=this._baseSource._read(this._offset+e,this._offset+t,this._offset+i,this._offset+r),s=e=>e?(e.offset-=this._offset,e):null;return Te(n)?n.then(s):s(n)}_dispose(){var e;null==(e=this._ref)||e.free()}ref(){return null!=this._ref||(this._ref=this._baseSource.ref()),super.ref()}}var Bs=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,n;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(n=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");n&&(r=function(){try{n.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t},Es=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});const _s=/^0[xX][0-9a-fA-F]+$/,Rs=/^data:.*;base64,/i;class Fs extends as{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){var e;return null!=(e=this.currentUpdateSegmentsPromise)?e:this.currentUpdateSegmentsPromise=(()=>d(this,null,function*(){try{const e=this.getRemainingWaitTimeMs();e>0&&(yield Re(e)),this.lastSegmentUpdateTime=performance.now(),yield this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}}))()}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}updateSegments(){return d(this,null,function*(){var e,t,i,r,n,s,a,l;let d=this.nextLines;if(this.nextLines=null,!d){const e={stack:[],error:void 0,hasError:!1};try{const t=Bs(e,yield this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),i=new Bo(t.source),r=yield i.requestEntireFile();y(r),d=$o(r,r.length,{ignore:ns}),t.source instanceof fs&&(this.rootPath=t.source.rootPath)}catch(F){e.error=F,e.hasError=!0}finally{Es(e)}}const h=!1!==(null==(e=this.input._formatOptions.hls)?void 0:e.offsetTimestampsByDateTime);let f=!1,m=0,p=null,g=null,k=null,b=0,v=null,S=null,w=null,P=null,x=null,C=null,B=!1,E=null!=(t=T(this.segments))?t:null;const _=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${e}'.`);let r=null;if(-1!==t&&(r=Number(e.slice(t+1)),!Number.isInteger(r)||r<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${e}'.`);return{length:i,offset:r}},R=e=>{b=e,E&&(y(null!==E.sequenceNumber),E.sequenceNumber0&&null!==C&&(m=b*C),B=!0);const t=e.slice(8),i=t.indexOf(","),r=-1===i?t:t.slice(0,i),n=Number(r);if(!Number.isFinite(n)||n<0)throw new Error(`Invalid #EXTINF tag duration '${r}'.`);g=n}else if(e.startsWith(Yn)){const t=new ss(e.slice(11)),i=t.get("uri");if(!i)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const r=t.get("byterange");let a=null;if(null!==r&&(a=_(r)),a&&null===a.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!E){const e={path:xe(this.rootPath,i),offset:null!=(n=null==a?void 0:a.offset)?n:0,length:null!=(s=null==a?void 0:a.length)?s:null};if("AES-128"===(null==k?void 0:k.method)&&!k.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");S={timestamp:m,unixEpochTimestamp:p,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:k,initSegment:null,lastProgramDateTimeSeconds:x}}g=null,null===P?w=null:P=null}else if(e.startsWith(Jn)){const t=new ss(e.slice(11)),i=t.get("method");if("NONE"===i)k=null;else if("AES-128"===i){const e=t.get("uri");if(!e)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let i=null;const r=t.get("iv");if(r){if(!_s.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(Ui);for(let t=0;t=8&&112===i[4]&&115===i[5]&&115===i[6]&&104===i[7]){const e=I(i).getUint32(0);r=Fi(i.subarray(8,Math.min(e,i.length)))}}k={method:i,psshBox:r}}}}else if(e.startsWith(Zn)){const t=e.slice(22),i=Number(t);if(!Number.isInteger(i)||i<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${t}'.`);R(i)}else if(e.startsWith(es)){const t=_(e.slice(17));if(null===t.offset){if(null===w)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");t.offset=w}P=t,w=t.offset+t.length}else if(e.startsWith(ts)){if(E)continue;const t=e.slice(25),i=Date.parse(t);if(!Number.isFinite(i))continue;const r=i/1e3;if(x===r)continue;if(null===x&&this.segments.length>0){const e=T(this.segments),t=r-(e.timestamp+e.duration);for(const i of this.segments)i.unixEpochTimestamp=i.timestamp+t,h&&(i.timestamp=i.unixEpochTimestamp)}x=r,p=r,h&&(m=r)}else if("#EXT-X-DISCONTINUITY"===e)v=null;else if(e.startsWith(is)){const t=e.slice(22),i=Number(t);if(!Number.isFinite(i)||i<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${t}'.`);this.refreshInterval=i,C=i}else{if("#EXT-X-ENDLIST"===e){this.streamHasEnded=!0;break}if(e.startsWith(rs)){"vod"===e.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==e)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");f=!0}}if(!f)throw new Error("Invalid M3U8 file; no #EXTM3U header.")})}getFirstSegment(){return d(this,null,function*(){var e;return 0===this.segments.length&&(yield this.runUpdateSegments()),null!=(e=this.segments[0])?e:null})}getSegmentAt(e,t){return d(this,null,function*(){0===this.segments.length&&(yield this.runUpdateSegments());let i=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const r=W(this.segments,e,e=>e.timestamp);if(-1===r)return null;if(r0;for(;;){if(re.segment===r);if(n)return n.age=this.nextInputCacheAge++,n.input;let s=null;(r.initSegment||r.firstSegment)&&(s=this.getInputForSegment(null!=(t=r.initSegment)?t:r.firstSegment));const a=u(c({},this.input._formatOptions),{isobmff:u(c({},this.input._formatOptions.isobmff),{resolveKeyId:(null==(i=this.input._formatOptions.isobmff)?void 0:i.resolveKeyId)&&(e=>{if(!r.encryption||"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method||!r.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(e);let t=e.psshBoxes;const{psshBox:i}=r.encryption;return null!==i.keyIds&&!i.keyIds.includes(e.keyId)||t.some(e=>Ai(e,i))||(t=[...t,i]),this.input._formatOptions.isobmff.resolveKeyId(u(c({},e),{psshBoxes:t}))})})}),l=new Io({source:new ps(r.location.path,e=>d(this,null,function*(){var t,i;y(e.isRoot);const n=u(c({},e),{isRoot:!1});let s;const a=r.location.offset>0||null!==r.location.length;if(r.encryption&&"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method)if("AES-128"===r.encryption.method){const e=r.encryption;y(e.iv);let t=yield this.input._getSourceCached(n);if(a){const e=t.source.slice(r.location.offset,null!=(i=r.location.length)?i:void 0).ref();t.free(),t=e}const l=((e,t,i)=>{let r=!1,n=0;const s=o(2,16),a=new Gi;return new ReadableStream({pull:o=>d(null,null,function*(){r||(a.init(yield t()),r=!0);const l=s+16;let c=e.requestSliceRange(n,0,l);if(Te(c)&&(c=yield c),!c||0===c.length)throw new Error("Invalid ciphertext.");const u=c.length;if(u%16!==0)throw new Error("Invalid ciphertext.");const d=u===l?u-16:u,h=Ro(c,d),f=new Uint8Array(d);for(let e=0;e16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const t=f.subarray(0,d-e);o.enqueue(t),o.close(),i()}}),cancel:()=>{i()}})})(new Bo(t.source),()=>d(this,null,function*(){const t={stack:[],error:void 0,hasError:!1};try{const i=Bs(t,yield this.input._getSourceCached({path:e.keyUri,isRoot:!1},Po),!1),r=new Bo(i.source),n=yield r.requestSlice(0,Ui);if(!n)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:Ro(n,Ui),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{Es(t)}}),()=>{t.free()});s=new Ps(l).ref()}else y(!1);else if(s=yield this.input._getSourceCached(n),a){const e=s.source.slice(r.location.offset,null!=(t=r.location.length)?t:void 0).ref();s.free(),s=e}return s})),formats:this.input._formats.filter(e=>!(e instanceof Js)),initInput:null!=s?s:void 0,formatOptions:a});l._onFormatDetermined=e=>{var t,i;if(("SAMPLE-AES"===(null==(t=r.encryption)?void 0:t.method)||"SAMPLE-AES-CTR"===(null==(i=r.encryption)?void 0:i.method))&&!e._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:r,input:l,age:this.nextInputCacheAge++});if(this.inputCache.length>4){const e=Be(this.inputCache,e=>e.age);y(-1!==e),this.inputCache.splice(e,1)}return l}getLiveRefreshInterval(){return d(this,null,function*(){return 0===this.getRemainingWaitTimeMs()&&(yield this.runUpdateSegments()),this.streamHasEnded?null:this.refreshInterval})}}class As extends Ei{constructor(e){super(e),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>d(this,null,function*(){y(this.input._rootSource instanceof fs);const e=yield this.input._reader.requestEntireFile();y(e);const t=$o(e,e.length,{ignore:ns}),{rootPath:i}=this.input._rootSource,r=[],n=[];for(let u=1;u"video"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],a=[...new Set(n.filter(e=>"audio"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],o=yield Promise.all(r.map((e,t)=>d(this,null,function*(){var r,o,l,c;const u=[],h=e.attributes.get("codecs");let f;if(h)f=h.split(",").map(e=>e.trim());else{const t=this.getSegmentedInputForPath(e.fullPath),i=yield t.getTrackBackings(),r=yield Promise.all(i.map(e=>d(this,null,function*(){return{track:e,codec:yield e.getCodec()}})));f=yield Promise.all(r.filter(e=>null!==e.codec).map(e=>e.track.getDecoderConfig().then(e=>e.codec)))}const m=e.attributes.get("video"),p=e.attributes.get("audio"),g=f.some(e=>ri.includes(yi(e))),k=f.some(e=>si.includes(yi(e)));if(null!==m&&!g){if(!s.includes(m))throw new Error(`Invalid M3U8 file; variant stream references video group "${m}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===m&&"video"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=xe(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"video"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});y(null!==a),f.push(a)}}if(null!==p&&!k){if(!a.includes(p))throw new Error(`Invalid M3U8 file; variant stream references audio group "${p}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===p&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=xe(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"audio"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});y(null!==a),f.push(a)}}f=[...new Set(f)];let b=null,T=null;const v=e.attributes.getAsNumber("bandwidth");y(null!==v);const S=e.attributes.getAsNumber("average-bandwidth"),w=e.attributes.get("name");for(const i of f){const d=yi(i);if(null!==d)if(ri.includes(d)){if(null!==b)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");b=i;const a=e.attributes.get("video");if(null===a){const i=e.attributes.get("resolution");let r=null,n=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(r=Number(e[1]),n=Number(e[2]))}u.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:Z,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:b,pairingMask:BigInt("1")<0?r:null}})}else{if(!a.includes(r))throw new Error(`Invalid M3U8 file; variant stream references audio group "${r}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of n){const n=i.attributes.get("group-id"),s=i.attributes.get("type");if(n!==r||"audio"!==s.toLowerCase())continue;const a=null!=(l=i.attributes.get("channels"))?l:e.attributes.get("channels"),o=null!==a?Number(a.split("/")[0]):null;u.push({id:-1,demuxer:this,backingTrack:null,default:Os(i.attributes),autoselect:Os(i.attributes)||Ls(i.attributes),languageCode:zs(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:null!=(c=i.fullPath)?c:e.fullPath,fullCodecString:T,pairingMask:BigInt("1")<0?o:null}})}}}}return u}))),l=[],c=e=>{var t,i;const r=l.find(t=>t.fullPath===e.fullPath&&t.info.type===e.info.type);r?(r.pairingMask|=e.pairingMask,r.default||(r.default=e.default),r.autoselect||(r.autoselect=e.autoselect),r.lineNumber=Math.min(r.lineNumber,e.lineNumber),null!==e.peakBitrate&&(r.peakBitrate=Math.max(null!=(t=r.peakBitrate)?t:-1/0,e.peakBitrate)),null!==e.averageBitrate&&(r.averageBitrate=Math.max(null!=(i=r.averageBitrate)?i:-1/0,e.averageBitrate)),r.languageCode===Z&&(r.languageCode=e.languageCode)):(e.id=l.length+1,l.push(e))};for(const u of o)for(const e of u)c(e);l.sort((e,t)=>e.lineNumber-t.lineNumber),this.trackBackings=[];for(const u of l)"video"===u.info.type?this.trackBackings.push(new Ms(u)):this.trackBackings.push(new Ns(u));this.internalTracks=l}))()}getTrackBackings(){return d(this,null,function*(){return yield this.readMetadata(),y(this.trackBackings),this.trackBackings})}getSegmentedInputForPath(e){let t=this.segmentedInputs.find(t=>t.path===e);if(t)return t;let i=null;if(this.internalTracks){i=this.internalTracks.filter(t=>t.fullPath===e).map(e=>({id:e.id,type:e.info.type}))}return t=new Fs(this,e,i,null),this.segmentedInputs.push(t),t}getMetadataTags(){return d(this,null,function*(){return{}})}getMimeType(){return d(this,null,function*(){return Kn})}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class Ds{constructor(e){this.internalTrack=e,this.hydrationPromise=null}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>d(this,null,function*(){const e=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let t=null;const i=(yield e.getTrackBackings()).filter(e=>e.getType()===this.getType());if(1===i.length)t=i[0];else if(this instanceof Ms){for(const r of i)if((yield r.getCodec())===this.getCodec()){t=r;break}}else{y(this instanceof Ns);for(const e of i)if((yield e.getCodec())===this.getCodec()){t=e;break}}if(!t)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=t}))()}delegate(e){return this.internalTrack.backingTrack?e():this.hydrate().then(e)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return u(c({},Le),{default:this.internalTrack.autoselect,primary:this.internalTrack.default})}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){y(this.internalTrack.demuxer.internalTracks);const e=this.internalTrack.info.type;let t=0;for(const i of this.internalTrack.demuxer.internalTracks)if(i.info.type===e&&t++,i===this.internalTrack)break;return t}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(e){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(e))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}getDurationFromMetadata(e){return d(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(e)})}getLiveRefreshInterval(){return d(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()})}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}getFirstPacket(e){return d(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(e)})}getPacket(e,t){return d(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getPacket(e,t)})}getKeyPacket(e,t){return d(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(e,t)})}getNextPacket(e,t){return d(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextPacket(e,t)})}getNextKeyPacket(e,t){return d(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(e,t)})}}class Ms extends Ds{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return yi(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}getColorSpace(){return d(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getColorSpace()})}canBeTransparent(){return d(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.canBeTransparent()})}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return d(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getDecoderConfig()})}}class Ns extends Ds{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return yi(this.internalTrack.fullCodecString)}getNumberOfChannels(){return null!==this.internalTrack.info.numberOfChannels?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return d(this,null,function*(){return yield this.hydrate(),this.backingAudioTrack.getDecoderConfig()})}}const Os=e=>{const t=e.get("default");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},Ls=e=>{const t=e.get("autoselect");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},zs=e=>{if(null===e)return Z;const t=e.split("-")[0];return t||Z};class Us{constructor(){this._isIsobmff=!1}}class qs extends Us{constructor(){super(...arguments),this._isIsobmff=!0}_getMajorBrand(e){return d(this,null,function*(){let t=e._reader.requestSlice(0,12);if(Te(t)&&(t=yield t),!t)return null;t.skip(4);const i=Xo(t,4);return"ftyp"!==i&&"styp"!==i?null:Xo(t,4)})}_createDemuxer(e){return new Qi(e)}}class Ws extends qs{_canReadInput(e){return d(this,null,function*(){const t=yield this._getMajorBrand(e);if(null!==t)return"qt "!==t;let i=0;for(let r=0;r<10;r++){let t=e._reader.requestSlice(i,8);if(Te(t)&&(t=yield t),!t)return!1;let r=Lo(t),n=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(Te(t)&&(t=yield t),!t)return!1;r=Wo(t),n=16}if(r8)return!1;if(Sr(i,r)!==mr.EBML)return!1;const n=Pr(i);if("number"!==typeof n)return!1;let s=e._reader.requestSlice(i.filePos,n);if(Te(s)&&(s=yield s),!s)return!1;const a=i.filePos;for(;s.filePos<=a+n-2;){const e=Ir(s);if(!e)break;const{id:i,size:r}=e,n=s.filePos;if(void 0===r)return!1;switch(i){case mr.EBMLVersion:if(1!==Sr(s,r))return!1;break;case mr.EBMLReadVersion:if(1!==Sr(s,r))return!1;break;case mr.DocType:if(xr(s,r)!==t)return!1;break;case mr.DocTypeVersion:if(Sr(s,r)>4)return!1}s.filePos=n+r}return!0})}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new en(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class js extends Vs{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class Ks extends Us{_canReadInput(e){return d(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,el);if(Te(i)&&(i=yield i),!i)break;const r=nl(i);if(!r)break;t=i.filePos+r.size}const i=yield sn(e._reader,t,t+4096);if(!i)return!1;const r=i.header,n=wi(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+n,4);if(Te(s)&&(s=yield s),!s)return!1;const a=Lo(s);if(a===vi||a===Si)return!0;t=i.startPos+i.header.totalSize;const o=yield sn(e._reader,t,t+4);if(!o)return!1;const l=o.header;return r.channel===l.channel&&r.sampleRate===l.sampleRate})}_createDemuxer(e){return new an(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class Xs extends Us{_canReadInput(e){return d(this,null,function*(){let t=e._reader.requestSlice(0,12);if(Te(t)&&(t=yield t),!t)return!1;const i=Xo(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===Xo(t,4)})}_createDemuxer(e){return new Sn(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class $s extends Us{_canReadInput(e){return d(this,null,function*(){let t=e._reader.requestSlice(0,4);return Te(t)&&(t=yield t),!!t&&"OggS"===Xo(t,4)})}_createDemuxer(e){return new gn(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class Gs extends Us{_canReadInput(e){return d(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,el);if(Te(i)&&(i=yield i),!i)break;const r=nl(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return Te(i)&&(i=yield i),!!i&&"fLaC"===Xo(i,4)})}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new En(e)}}class Qs extends Us{_canReadInput(e){return d(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,el);if(Te(i)&&(i=yield i),!i)break;const r=nl(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(Te(i)&&(i=yield i),!i)return!1;const r=In(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),Te(i)&&(i=yield i),!i)return!1;const n=In(i);return!!n&&(r.objectType===n.objectType&&r.samplingFrequencyIndex===n.samplingFrequencyIndex&&r.channelConfiguration===n.channelConfiguration)})}_createDemuxer(e){return new Cn(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class Ys extends Us{_canReadInput(e){return d(this,null,function*(){let t=e._reader.requestSlice(0,205);if(Te(t)&&(t=yield t),!t)return!1;const i=Ro(t,205);return 71===i[0]&&71===i[188]||(71===i[0]&&71===i[204]||71===i[4]&&71===i[196])})}_createDemuxer(e){return new On(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class Js extends Us{_canReadInput(e){return d(this,null,function*(){let t=e._reader.requestSlice(0,7);if(Te(t)&&(t=yield t),!t)return!1;if(!("#EXTM3U"===Xo(t,7)))return!1;if(!(e._rootSource instanceof fs))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return e._rootSource._usedForHls=!0,!0})}_createDemuxer(e){return new As(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return Kn}}const Zs=new Ws,ea=new Hs,ta=new Vs,ia=new js,ra=new Ks,na=new Xs,sa=new $s,aa=new Qs,oa=new Gs,la=new Ys,ca=new Js,ua=[ca,Zs,ea,ta,ia,na,sa,oa,ra,aa,la],da=[ca,Zs,ea,ra,aa,la];var ha=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});Pe();let fa=-1/0,ma=-1/0,pa=null;"undefined"!==typeof FinalizationRegistry&&(pa=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-fa>=1e3&&(Me._error("A VideoSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your VideoSamples as soon as you're done using them."),fa=t),"undefined"!==typeof VideoFrame&&e.data instanceof VideoFrame&&e.data.close()):(t-ma>=1e3&&(Me._error("An AudioSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your AudioSamples as soon as you're done using them."),ma=t),"undefined"!==typeof AudioData&&e.data instanceof AudioData&&e.data.close())}));class ga{constructor(){this._referenceCount=0,this._lastAllocationBuffer=null}}const ka=["I420","I420P10","I420P12","I420A","I420AP10","I420AP12","I422","I422P10","I422P12","I422A","I422AP10","I422AP12","I444","I444P10","I444P12","I444A","I444AP10","I444AP12","NV12","RGBA","RGBX","BGRA","BGRX"],ya=new Set(ka);class ba{get codedWidth(){return this.visibleRect.width}get codedHeight(){return this.visibleRect.height}get displayWidth(){return this.rotation%180===0?this.squarePixelWidth:this.squarePixelHeight}get displayHeight(){return this.rotation%180===0?this.squarePixelHeight:this.squarePixelWidth}get microsecondTimestamp(){return Math.trunc(oe*this.timestamp)}get microsecondDuration(){return Math.trunc(oe*this.duration)}get hasAlpha(){return this.format&&this.format.includes("A")}constructor(e,t){var i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,S,w,I,x,C,B,E,_,R,F,A;if(this._closed=!1,e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e)){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0===t.format||!ya.has(t.format))throw new TypeError("init.format must be one of: "+ka.join(", "));if(!Number.isInteger(t.codedWidth)||t.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(t.codedHeight)||t.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.layout){if(!Array.isArray(t.layout))throw new TypeError("init.layout, when provided, must be an array.");for(const e of t.layout){if(!e||"object"!==typeof e||Array.isArray(e))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(e.offset)||e.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(e.stride)||e.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==t.visibleRect&&_e(t.visibleRect,"init.visibleRect"),void 0!==t.displayWidth&&(!Number.isInteger(t.displayWidth)||t.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(void 0!==t.displayHeight&&(!Number.isInteger(t.displayHeight)||t.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(void 0!==t.displayWidth!==(void 0!==t.displayHeight))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=t.format,this.rotation=null!=(i=t.rotation)?i:0,this.timestamp=t.timestamp,this.duration=null!=(r=t.duration)?r:0;const m=null!=(n=t.layout)?n:Ea(t.format,t.codedWidth,t.codedHeight);let p=null!=(s=t.colorSpace)?s:null;null===p&&(p="RGBA"===this.format||"RGBX"===this.format||"BGRA"===this.format||"BGRX"===this.format?{primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:{primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:null!=(o=null==(a=t.visibleRect)?void 0:a.left)?o:0,top:null!=(c=null==(l=t.visibleRect)?void 0:l.top)?c:0,width:null!=(d=null==(u=t.visibleRect)?void 0:u.width)?d:t.codedWidth,height:null!=(f=null==(h=t.visibleRect)?void 0:h.height)?f:t.codedHeight},void 0!==t.displayWidth?(this.squarePixelWidth=this.rotation%180===0?t.displayWidth:t.displayHeight,this.squarePixelHeight=this.rotation%180===0?t.displayHeight:t.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=t._doNotCopy?P(e):P(e).slice(),this._layout=m,this.colorSpace=new Pa(p)}else if("undefined"!==typeof VideoFrame&&e instanceof VideoFrame){if(void 0!==(null==t?void 0:t.rotation)&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(void 0!==(null==t?void 0:t.timestamp)&&!Number.isFinite(null==t?void 0:t.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(void 0!==(null==t?void 0:t.duration)&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");void 0!==(null==t?void 0:t.visibleRect)&&_e(t.visibleRect,"init.visibleRect"),this._data=e,this._layout=null,this.format=e.format,this.visibleRect={left:null!=(p=null==(m=e.visibleRect)?void 0:m.x)?p:0,top:null!=(k=null==(g=e.visibleRect)?void 0:g.y)?k:0,width:null!=(b=null==(y=e.visibleRect)?void 0:y.width)?b:e.codedWidth,height:null!=(v=null==(T=e.visibleRect)?void 0:T.height)?v:e.codedHeight},this.rotation=null!=(S=null==t?void 0:t.rotation)?S:0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=null!=(w=null==t?void 0:t.timestamp)?w:e.timestamp/1e6,this.duration=null!=(x=null==t?void 0:t.duration)?x:(null!=(I=e.duration)?I:0)/1e6,this.colorSpace=new Pa(e.colorSpace)}else if("undefined"!==typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!==typeof SVGImageElement&&e instanceof SVGImageElement||"undefined"!==typeof ImageBitmap&&e instanceof ImageBitmap||"undefined"!==typeof HTMLVideoElement&&e instanceof HTMLVideoElement||"undefined"!==typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!==typeof OffscreenCanvas&&e instanceof OffscreenCanvas){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.visibleRect&&_e(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new ba(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*oe),duration:Math.trunc((null!=(C=t.duration)?C:0)*oe)||void 0,visibleRect:t.visibleRect&&{x:t.visibleRect.left,y:t.visibleRect.top,width:t.visibleRect.width,height:t.visibleRect.height}}),t);let i=0,r=0;if("naturalWidth"in e?(i=e.naturalWidth,r=e.naturalHeight):"videoWidth"in e?(i=e.videoWidth,r=e.videoHeight):"width"in e&&(i=Number(e.width),r=Number(e.height)),!i||!r)throw new TypeError("Could not determine dimensions.");const n=null!=(B=t.visibleRect)?B:{left:0,top:0,width:i,height:r},s=new OffscreenCanvas(n.width,n.height),a=s.getContext("2d",{alpha:pe(),willReadFrequently:!0});if(!a)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");a.drawImage(e,-n.left,-n.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:n.width,height:n.height},this.squarePixelWidth=n.width,this.squarePixelHeight=n.height,this.rotation=null!=(E=t.rotation)?E:0,this.timestamp=t.timestamp,this.duration=null!=(_=t.duration)?_:0,this.colorSpace=new Pa({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof ga))throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=e,e._referenceCount++,this.format=e.getFormat(),null!==this.format&&!ka.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:e.getCodedWidth(),height:e.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=e.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=e.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=null!=(R=t.rotation)?R:0,this.timestamp=t.timestamp,this.duration=null!=(F=t.duration)?F:0,this.colorSpace=e.getColorSpace()}this.encodeOptions=null!=(A=null==t?void 0:t.encodeOptions)?A:{},this.pixelAspectRatio=Ee({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),null==pa||pa.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return y(null!==this._data),this._data instanceof ga?new ba(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):Ia(this._data)?new ba(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(y(this._layout),new ba(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new ba(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(null==pa||pa.unregister(this),this._data instanceof ga?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Ia(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){var t;if(Ba(e),this._closed)throw new Error("VideoSample is closed.");if(null==(null!=(t=e.format)?t:this.format))throw new Error("Cannot get allocation size when format is null.");if(Ia(this._data))return this._data.allocationSize(e);return Ra(this,e).allocationSize}copyTo(e){return d(this,arguments,function*(e,t={}){var i,r;if(!N(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(Ba(t),this._closed)throw new Error("VideoSample is closed.");if(null==(null!=(i=t.format)?i:this.format))throw new Error("Cannot copy video sample data when format is null.");if(y(null!==this._data),Ia(this._data))return this._data.copyTo(e,t);if(t.format&&!["RGBA","RGBX","BGRA","BGRX"].includes(this.format)&&["RGBA","RGBX","BGRA","BGRX"].includes(t.format)){if(!(this._data instanceof ga)){if("undefined"===typeof VideoFrame)throw new Error("For this sample, converting from a non-RGB to an RGB format requires VideoFrame to be defined.");const i=this.toVideoFrame(),r=yield i.copyTo(e,t);return i.close(),r}{const i={stack:[],error:void 0,hasError:!1};try{const n=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,n;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(n=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");n&&(r=function(){try{n.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t}(i,yield this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation},null!=(r=t.colorSpace)?r:"srgb"),!1);if(!(n instanceof ba))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(n.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${n.format}' instead.`);return yield n.copyTo(e,t)}catch(u){i.error=u,i.hasError=!0}finally{ha(i)}}}const n=Ra(this,t);y(this.format);const s=P(e);if(s.byteLength!(e.data instanceof Uint8Array)||!Number.isInteger(e.stride)||e.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');o=e}else if(this._data instanceof Uint8Array)y(this._layout),y(this._layout.length===a.length),o=this._layout.map((e,t)=>{const i=Math.ceil(this.codedHeight/a[t].heightDivisor);return{data:this._data.subarray(e.offset,e.offset+e.stride*i),stride:e.stride}});else{const e=this._data.getContext("2d");y(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);o=[{data:P(t.data),stride:4*this.codedWidth}]}const l=[],c=a.length;for(let d=0;di.byteLength)throw new Error("Source buffer OOB read.");if(a+c>s.byteLength)throw new Error("Destination buffer OOB write.");const n=i.subarray(r,r+c);s.set(n,a),r+=t,a+=e.destinationStride}l.push(u)}if(void 0!==t.format){const e=this.format.startsWith("RGB")!==t.format.startsWith("RGB"),i=this.format.includes("X")&&t.format.includes("A");if(e||i)for(let t=0;te+t.data.byteLength,0),i=new Uint8Array(t);let r=0;const n=[];for(const s of e)i.set(s.data,r),n.push(r),r+=s.data.byteLength;return new VideoFrame(i,{format:this.format,layout:e.map((e,t)=>({offset:n[t],stride:e.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}return Ia(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(y(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(e,t,i,r,n,s,a,o,l){let c=0,u=0,d=this.displayWidth,h=this.displayHeight,f=0,m=0,p=this.displayWidth,g=this.displayHeight;if(void 0!==s?(c=t,u=i,d=r,h=n,f=s,m=a,void 0!==o?(p=o,g=l):(p=d,g=h)):(f=t,m=i,void 0!==r&&(p=r,g=n)),!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(c))throw new TypeError("sx must be a number.");if(!Number.isFinite(u))throw new TypeError("sy must be a number.");if(!Number.isFinite(d)||d<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(h)||h<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(f))throw new TypeError("dx must be a number.");if(!Number.isFinite(m))throw new TypeError("dy must be a number.");if(!Number.isFinite(p)||p<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(g)||g<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:c,sy:u,sWidth:d,sHeight:h}=this._rotateSourceRegion(c,u,d,h,this.rotation));const k=this.toCanvasImageSource();e.save();const y=f+p/2,b=m+g/2;e.translate(y,b),e.rotate(this.rotation*Math.PI/180);const T=this.rotation%180===0?1:p/g;e.scale(1/T,T),e.drawImage(k,c,u,d,h,-p/2,-g/2,p,g),e.restore()}drawWithFit(e,t){var i,r,n,s,a,o,l,c,u;if(!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&Ca(t.crop,"options.");const d=e.canvas.width,h=e.canvas.height,f=null!=(i=t.rotation)?i:this.rotation,[m,p]=f%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let g,k,y,b,T=t.crop;T&&(T=xa(T,m,p));const{sx:v,sy:S,sWidth:w,sHeight:P}=this._rotateSourceRegion(null!=(n=null==(r=t.crop)?void 0:r.left)?n:0,null!=(a=null==(s=t.crop)?void 0:s.top)?a:0,null!=(l=null==(o=t.crop)?void 0:o.width)?l:m,null!=(u=null==(c=t.crop)?void 0:c.height)?u:p,f);if("fill"===t.fit)g=0,k=0,y=d,b=h;else{const[e,i]=t.crop?[t.crop.width,t.crop.height]:[m,p],r="contain"===t.fit?Math.min(d/e,h/i):Math.max(d/e,h/i);y=e*r,b=i*r,g=(d-y)/2,k=(h-b)/2}e.save();const I=f%180===0?1:y/b;e.translate(d/2,h/2),e.rotate(f*Math.PI/180),e.scale(1/I,I),e.translate(-d/2,-h/2),e.drawImage(this.toCanvasImageSource(),v,S,w,P,g,k,y,b),e.restore()}_rotateSourceRegion(e,t,i,r,n){return 90===n?[e,t,i,r]=[t,this.squarePixelHeight-e-i,r,i]:180===n?[e,t]=[this.squarePixelWidth-e-i,this.squarePixelHeight-t-r]:270===n&&([e,t,i,r]=[this.squarePixelWidth-t-r,e,r,i]),{sx:e,sy:t,sWidth:i,sHeight:r}}_drawWithFitAndMipmapping(e,t,i){const r=e.width,n=e.height,[s,a]=i.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],l=i.crop?i.crop.width:s,c=i.crop?i.crop.height:a;let u=0;2*r0?wa(d,h):{canvas:e,context:t,isNew:i.targetIsFresh};m.imageSmoothingQuality="high",i.fillBlack?(m.fillStyle="black",m.fillRect(0,0,d,h)):p||m.clearRect(0,0,d,h),this.drawWithFit(m,{fit:i.fit,rotation:i.rotation,crop:i.crop}),m.globalCompositeOperation="copy";for(let g=u;g>1;g--){const e=r*o(2,g),t=n*o(2,g);m.drawImage(f,0,0,e,t,0,0,e/2,t/2)}m.globalCompositeOperation="source-over",u>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(f,0,0,2*r,2*n,0,0,r,n),t.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(y(null!==this._data),this._data instanceof ga||this._data instanceof Uint8Array){const e=this.toVideoFrame();return queueMicrotask(()=>e.close()),e}return this._data}transform(e){return d(this,null,function*(){var t,i,r,n,s;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.width&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(void 0!==e.height&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(void 0!==e.roundDimensionsTo&&(!Number.isInteger(e.roundDimensionsTo)||e.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(void 0!==e.fit&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==e.width&&void 0!==e.height&&void 0===e.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==e.rotate&&![0,90,180,270].includes(e.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(void 0!==e.crop&&Ca(e.crop,"options."),void 0!==e.alpha&&!["keep","discard"].includes(e.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");const a=b(this.rotation+(null!=(t=e.rotate)?t:0)),[o,l]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let c=e.crop;c&&(c=xa(c,o,l));const u=c?c.width:o,d=c?c.height:l,h=u/d;let f,m;void 0!==e.width&&void 0===e.height?(f=e.width,m=f/h):void 0===e.width&&void 0!==e.height?(m=e.height,f=m*h):void 0!==e.width&&void 0!==e.height?(f=e.width,m=e.height):(f=u,m=d),f=te(f,null!=(i=e.roundDimensionsTo)?i:1),m=te(m,null!=(r=e.roundDimensionsTo)?r:1);const p={width:f,height:m,fit:null!=(n=e.fit)?n:"fill",rotation:a,crop:null!=c?c:{left:0,top:0,width:o,height:l},alpha:null!=(s=e.alpha)?s:"keep"};for(const e of Ta){let t=e(this,p);if(Te(t)&&(t=yield t),null!==t)return t}const{canvas:g,context:k,isNew:y}=wa(p.width,p.height);return this._drawWithFitAndMipmapping(g,k,{fit:p.fit,rotation:p.rotation,crop:p.crop,targetIsFresh:y,fillBlack:"discard"===p.alpha}),new ba(g,{timestamp:this.timestamp,duration:this.duration,rotation:0})})}setRotation(e){if(![0,90,180,270].includes(e))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}setDuration(e){if(!Number.isFinite(e)||e<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=e}setEncodeOptions(e){if(!e||"object"!==typeof e)throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=e}[Symbol.dispose](){this.close()}}const Ta=[],va=[];let Sa=0;const wa=(e,t)=>{for(const n of va)if(n.canvas.width===e&&n.canvas.height===t)return n.age=Sa++,{canvas:n.canvas,context:n.context,isNew:!1};let i;if("undefined"!==typeof OffscreenCanvas)i=new OffscreenCanvas(e,t);else{if("undefined"===typeof window||"undefined"===typeof document)throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");i=document.createElement("canvas"),i.width=e,i.height=t}const r=i.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return va.length>=3&&va.splice(Be(va,e=>e.age),1),va.push({canvas:i,context:r,age:Sa++}),{canvas:i,context:r,isNew:!0}};class Pa{constructor(e){var t,i,r,n;if(void 0!==e){if(!e||"object"!==typeof e)throw new TypeError("init.colorSpace, when provided, must be an object.");const t=Object.keys(B);if(null!=e.primaries&&!t.includes(e.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${t.join(", ")}.`);const i=Object.keys(_);if(null!=e.transfer&&!i.includes(e.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${i.join(", ")}.`);const r=Object.keys(F);if(null!=e.matrix&&!r.includes(e.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${r.join(", ")}.`);if(null!=e.fullRange&&"boolean"!==typeof e.fullRange)throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=null!=(t=null==e?void 0:e.primaries)?t:null,this.transfer=null!=(i=null==e?void 0:e.transfer)?i:null,this.matrix=null!=(r=null==e?void 0:e.matrix)?r:null,this.fullRange=null!=(n=null==e?void 0:e.fullRange)?n:null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}const Ia=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,xa=(e,t,i)=>{const r=Math.min(e.left,t),n=Math.min(e.top,i),s=Math.min(e.width,t-r),a=Math.min(e.height,i-n);return y(s>=0),y(a>=0),{left:r,top:n,width:s,height:a}},Ca=(e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},Ba=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!==typeof e.format)throw new TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw new TypeError("options.layout, when provided, must be an array.");for(const t of e.layout){if(!t||"object"!==typeof t)throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==e.rect){if(!e.rect||"object"!==typeof e.rect)throw new TypeError("options.rect, when provided, must be an object.");if(void 0!==e.rect.x&&(!Number.isInteger(e.rect.x)||e.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(void 0!==e.rect.y&&(!Number.isInteger(e.rect.y)||e.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(void 0!==e.rect.width&&(!Number.isInteger(e.rect.width)||e.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(void 0!==e.rect.height&&(!Number.isInteger(e.rect.height)||e.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},Ea=(e,t,i)=>{const r=_a(e),n=[];let s=0;for(const a of r){const e=Math.ceil(t/a.widthDivisor),r=Math.ceil(i/a.heightDivisor),o=e*a.sampleBytes,l=o*r;n.push({offset:s,stride:o}),s+=l}return n},_a=e=>{const t=(e,t,i,r,n)=>{const s=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:i,heightDivisor:r},{sampleBytes:t,widthDivisor:i,heightDivisor:r}];return n&&s.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),s};switch(e){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:$(e),y(!1)}},Ra=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,n=Fa(i,r,e.codedWidth,e.codedHeight,e.format),s=t.layout;let a;if(t.format&&t.format!==e.format){if(!["RGBA","RGBX","BGRA","BGRX"].includes(t.format))throw new Error("NotSupportedError: Invalid destination format.");a=t.format}else a=e.format;return Da(n,a,s)},Fa=(e,t,i,r,n)=>{const s=c({},e);if(void 0!==t){if(0===t.width||0===t.height)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>i)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");s.x=t.x||0,s.y=t.y||0,s.width=t.width||0,s.height=t.height||0}if(!Aa(n,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},Aa=(e,t)=>{if(null===e)return!0;const i=_a(e);for(let r=0;r{const r=_a(t),n=r.length;if(void 0!==i&&i.length!==n)throw new TypeError(`Layout must have ${n} planes.`);let s=0;const a=[],o=[];for(let l=0;l4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(h),s=Math.max(s,h);for(let e=0;e 0.");if(!Number.isInteger(e.numberOfChannels)||0===e.numberOfChannels)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(null==e?void 0:e.timestamp))throw new TypeError("init.timestamp must be a number.");const t=e.data.byteLength/(La(e.format)*e.numberOfChannels);if(!Number.isInteger(t))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");let i;if(this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=t,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp,this.duration=t/e.sampleRate,e.data instanceof ArrayBuffer)i=new Uint8Array(e.data);else{if(!ArrayBuffer.isView(e.data))throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");i=new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}const r=this.numberOfFrames*this.numberOfChannels*La(this.format);if(i.byteLength=this.numberOfFrames)throw new RangeError("frameOffset out of range");const s=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-n;if(s>this.numberOfFrames-n)throw new RangeError("frameCount out of range");const a=La(r),o=za(r);if(o&&e.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!o&&0!==e.planeIndex)throw new RangeError("planeIndex out of range");return(o?s:s*this.numberOfChannels)*a}copyTo(e,t){if(!N(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!Ma.has(t.format))throw new TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:i,frameCount:r,frameOffset:n}=t;let{planeIndex:s}=t,a=this.format;const o=null!=i?i:this.format;if(!o)throw new Error("Destination format not determined");const l=this.numberOfFrames,c=this.numberOfChannels,u=null!=n?n:0;if(u>=l)throw new RangeError("frameOffset out of range");const d=void 0!==r?r:l-u;if(d>l-u)throw new RangeError("frameCount out of range");const h=La(o),f=za(o);if(f&&s>=c)throw new RangeError("planeIndex out of range");if(!f&&0!==s)throw new RangeError("planeIndex out of range");const m=(f?d:d*c)*h;if(e.byteLength2&&o!==a)return void Ha(this._data,p,a,o,c,s,u,d);try{return void this._data.copyTo(e,{planeIndex:s,frameOffset:u,frameCount:d,format:o})}catch(w){if("f32-planar"===o)throw w;a="f32-planar"}}const k=Ua(a),b=La(a),T=za(a);let v;if(this._data instanceof Na){const e=e=>{const t=this._data.getDataPlane(e);if(!(t instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const i=l*b*(T?1:c);if(t.byteLength!==i)throw new TypeError(`Data plane ${e} has invalid size. Expected exactly ${i} bytes, got ${t.byteLength} bytes.`);return t};if(T)if(f)v=e(s),s=0;else{v=new Uint8Array(l*b*c);for(let t=0;tthis.numberOfFrames)throw new RangeError("startFrame out of range.");if(t>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(t0)for(let r=0;r0&&this.copyTo(n,{planeIndex:0,format:this.format,frameOffset:e,frameCount:i});return new Oa({data:n,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(null==pa||pa.unregister(this),this._data instanceof Na?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Wa(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof Na?this._createAudioDataFromData():Wa(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(za(this.format)){const e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels);for(let i=0;i0;){const n=Math.min(s,o),l=new Float32Array(i*n);for(let t=0;t0;){const n=Math.min(s,o),c=new Float32Array(i*n);for(let t=0;t{switch(e){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},za=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},Ua=e=>{switch(e){case"u8":case"u8-planar":return(e,t)=>(e.getUint8(t)-128)/128;case"s16":case"s16-planar":return(e,t)=>e.getInt16(t,!0)/32768;case"s32":case"s32-planar":return(e,t)=>e.getInt32(t,!0)/2147483648;case"f32":case"f32-planar":return(e,t)=>e.getFloat32(t,!0)}},qa=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,J(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,J(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,J(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},Wa=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,Ha=(e,t,i,r,n,s,a,o)=>{const l=Ua(i),c=qa(r),u=La(i),d=La(r),h=za(i);if(za(r))if(h){const r=new ArrayBuffer(o*u),n=I(r);e.copyTo(r,{planeIndex:s,frameOffset:a,frameCount:o,format:i});for(let e=0;e{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!==typeof e.metadataOnly)throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!==typeof e.verifyKeyPackets)throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(void 0!==e.skipLiveWait&&"boolean"!==typeof e.skipLiveWait)throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},Xa=e=>{if(!Ie(e))throw new TypeError("timestamp must be a number.")},$a=(e,t,i)=>i.verifyKeyPackets?t.then(t=>d(null,null,function*(){if(!t||"delta"===t.type)return t;const i=yield e.determinePacketType(t);return i&&(t.type=i),t})):t;class Ga{constructor(e){if(!(e instanceof uo))throw new TypeError("track must be an InputTrack.");this._track=e}getFirstPacket(){return d(this,arguments,function*(e={}){if(Ka(e),this._track.input._disposed)throw new Co;return $a(this._track,this._track._backing.getFirstPacket(e),e)})}getFirstKeyPacket(){return d(this,arguments,function*(e={}){Ka(e);const t=yield this.getFirstPacket(e);return t?"key"===t.type?t:this.getNextKeyPacket(t,e):null})}getPacket(e){return d(this,arguments,function*(e,t={}){if(Xa(e),Ka(t),this._track.input._disposed)throw new Co;return $a(this._track,this._track._backing.getPacket(e,t),t)})}getNextPacket(e){return d(this,arguments,function*(e,t={}){if(!(e instanceof Ri))throw new TypeError("packet must be an EncodedPacket.");if(Ka(t),this._track.input._disposed)throw new Co;return $a(this._track,this._track._backing.getNextPacket(e,t),t)})}getKeyPacket(e){return d(this,arguments,function*(e,t={}){if(Xa(e),Ka(t),this._track.input._disposed)throw new Co;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const i=yield this._track._backing.getKeyPacket(e,t);if(!i)return i;y("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getKeyPacket(i.timestamp-1/(yield this._track.getTimeResolution()),t):i})}getNextKeyPacket(e){return d(this,arguments,function*(e,t={}){if(!(e instanceof Ri))throw new TypeError("packet must be an EncodedPacket.");if(Ka(t),this._track.input._disposed)throw new Co;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const i=yield this._track._backing.getNextKeyPacket(e,t);if(!i)return i;y("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getNextKeyPacket(i,t):i})}packets(e,t,i={}){if(void 0!==e&&!(e instanceof Ri))throw new TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!(null==i?void 0:i.metadataOnly))throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof Ri))throw new TypeError("endPacket must be an EncodedPacket.");if(Ka(i),this._track.input._disposed)throw new Co;const r=[];let{promise:n,resolve:s}=V(),{promise:a,resolve:o}=V(),l=!1,c=!1,u=null,h=!1;const f=[],m=()=>Math.max(2,f.length);(()=>d(this,null,function*(){let u=null!=e?e:yield this.getFirstPacket(i);for(;u&&!c&&!this._track.input._disposed&&!(t&&u.sequenceNumber>=(null==t?void 0:t.sequenceNumber));)r.length>m()?(({promise:a,resolve:o}=V()),yield a):(r.push(u),s(),({promise:n,resolve:s}=V()),u=yield this.getNextPacket(u,i));l=!0,s()}))().catch(e=>{h||(u=e,h=!0,s())});const p=this._track;return{next(){return d(this,null,function*(){for(;;){if(p.input._disposed)throw new Co;if(c)return{value:void 0,done:!0};if(h)throw u;if(r.length>0){const e=r.shift(),t=performance.now();for(f.push(t);f.length>0&&t-f[0]>=1e3;)f.shift();return o(),{value:e,done:!1}}if(l)return{value:void 0,done:!0};yield n}})},return(){return d(this,null,function*(){return c=!0,o(),s(),{value:void 0,done:!0}})},throw(e){return d(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}class Qa{constructor(e,t){this.onSample=e,this.onError=t}}class Ya{mediaSamplesInRange(e=-1/0,t=1/0,i){Xa(e),Xa(t);const r=[];let n=!1,s=null,{promise:a,resolve:o}=V(),{promise:l,resolve:h}=V(),f=!1,m=!1,p=!1,g=null,k=null,y=!1;const b=u(c({},i),{verifyKeyPackets:!0,metadataOnly:!1});(()=>d(this,null,function*(){var i;g=yield this._createDecoder(i=>{h(),i.timestamp>=t&&(m=!0),m?i.close():(s&&(i.timestamp>e?(r.push(s),n=!0):s.close()),i.timestamp>=e&&(r.push(i),n=!0),s=n?null:i,r.length>0&&(o(),({promise:a,resolve:o}=V())))},e=>{y||(k=e,y=!0,o())});const c=this._createPacketSink(),u=null!=(i=yield c.getKeyPacket(e,b))?i:yield c.getFirstKeyPacket(b);let d=u;const T=c.packets(null!=u?u:void 0,void 0,b);for(yield T.next();d&&!m&&!this._track.input._disposed;){const e=Ja(r.length);if(r.length+g.getDecodeQueueSize()>e){({promise:l,resolve:h}=V()),yield l;continue}g.decode(d);const t=yield T.next();if(t.done)break;d=t.value}yield T.return(),p||this._track.input._disposed||(yield g.flush()),!n&&s&&r.push(s),f=!0,o()}))().catch(e=>{y||(k=e,y=!0,o())}).finally(()=>{null==g||g.close()});const T=this._track,v=()=>{null==s||s.close();for(const e of r)e.close()};return{next(){return d(this,null,function*(){for(;;){if(T.input._disposed)throw p=!0,m=!0,v(),new Co;if(p)return{value:void 0,done:!0};if(y)throw p=!0,m=!0,v(),k;if(r.length>0){const e=r.shift();return h(),{value:e,done:!1}}if(f)return{value:void 0,done:!0};yield a}})},return(){return d(this,null,function*(){return p=!0,m=!0,h(),o(),v(),{value:void 0,done:!0}})},throw(e){return d(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(e,t){(e=>{if(!(Symbol.iterator in e)&&!(Symbol.asyncIterator in e))throw new TypeError("Argument must be an iterable or async iterable.")})(e);const i=function(e){return f(this,null,function*(){Symbol.iterator in e?yield*m(e[Symbol.iterator]()):yield*m(e[Symbol.asyncIterator]())})}(e),r=[],n=[];let{promise:s,resolve:a}=V(),{promise:o,resolve:l}=V(),h=!1,g=!1,k=null,b=null,T=!1;const v=e=>{n.push(e),a(),({promise:s,resolve:a}=V())},S=u(c({},t),{verifyKeyPackets:!0,metadataOnly:!1});(()=>d(this,null,function*(){k=yield this._createDecoder(e=>{if(l(),g)return void e.close();let t=0;for(;r.length>0&&e.timestamp-r[0]>-1e-10;)t++,r.shift();if(t>0)for(let i=0;i{T||(b=e,T=!0,a())});const e=this._createPacketSink();let t=null,s=null,c=-1;const u=()=>d(this,null,function*(){y(s),y(k);let t=s;for(k.decode(t);t.sequenceNumberi&&!g;)({promise:o,resolve:l}=V()),yield o;if(g)break;const r=yield e.getNextPacket(t,S);y(r),k.decode(r),t=r}c=-1}),f=()=>d(this,null,function*(){y(k),yield k.flush();for(let e=0;e{T||(b=e,T=!0,a())}).finally(()=>{null==k||k.close()});const w=this._track,P=()=>{for(const e of n)null==e||e.close()};return{next(){return d(this,null,function*(){for(;;){if(w.input._disposed)throw g=!0,P(),new Co;if(g)return{value:void 0,done:!0};if(T)throw g=!0,P(),b;if(n.length>0){const e=n.shift();return y(void 0!==e),l(),{value:e,done:!1}}if(h)return{value:void 0,done:!0};yield s}})},return(){return d(this,null,function*(){return g=!0,l(),a(),P(),{value:void 0,done:!0}})},throw(e){return d(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}const Ja=e=>0===e?40:8;class Za extends Qa{constructor(e,t,i,r,n,s){var a,o,l,d,h,f,m,p;super(e,t),this.codec=i,this.decoderConfig=r,this.rotation=n,this.timeResolution=s,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new de,this.customDecoderQueueSize=0,this.inputTimestamps=[],this.sampleQueue=[],this.currentPacketIndex=0,this.raslSkipped=!1,this.alphaDecoder=null,this.alphaHadKeyframe=!1,this.colorQueue=[],this.alphaQueue=[],this.merger=null,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue=[],this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,this.finalSamples=[],this.mergeAlphaPromises=[];const g=Va.find(e=>e.supports(i,r));if(g)this.customDecoder=new g,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof ba))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=e=>{if(this.alphaQueue.length>0){const t=this.alphaQueue.shift();y(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(ke()){if("avc"===i&&this.decoderConfig.description){const e=ot(P(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=ct(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig=u(c({},this.decoderConfig),{hardwareAcceleration:"prefer-software"})),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=dt(t),this.decoderConfig=u(c({},this.decoderConfig),{description:at(e)})))}}D(this.decoderConfig.colorSpace)||(this.decoderConfig=u(c({},this.decoderConfig),{colorSpace:{primaries:null!=(o=null==(a=this.decoderConfig.colorSpace)?void 0:a.primaries)?o:"bt709",matrix:null!=(d=null==(l=this.decoderConfig.colorSpace)?void 0:l.matrix)?d:"bt709",transfer:null!=(f=null==(h=this.decoderConfig.colorSpace)?void 0:h.transfer)?f:"bt709",fullRange:null!=(p=null==(m=this.decoderConfig.colorSpace)?void 0:m.fullRange)&&p}}))}const t=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){var e,t;return this.customDecoder?this.customDecoderQueueSize:(y(this.decoder),Math.max(this.decoder.decodeQueueSize,null!=(t=null==(e=this.alphaDecoder)?void 0:e.decodeQueueSize)?t:0))}decode(e){if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--);else{if(y(this.decoder),fe()||H(this.inputTimestamps,e.timestamp,e=>e),ke()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const n of Ze(e.data,this.decoderConfig)){const r=et(e.data[n.offset]);if(i||(i=r>=1&&r<=5),r===Xe.AUD){if(i)break;t.length=0}r>=20&&r<=31||t.push(e.data.subarray(n.offset,n.offset+n.length))}if(!this.decoderConfig.description)for(let e=0;e{if(t.description){const i=3&P(t.description)[4];return nt(e,i+1)}return rt(e)})(t,this.decoderConfig);e=new Ri(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=It(e.data,this.decoderConfig);t&&(e=new Ri(t,e.type,e.timestamp,e.duration))}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}decodeAlphaData(e){if(!e.sideData.alpha)return void this.pushNullAlphaFrame();if(this.merger||(this.merger=new to),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();y(void 0!==t),this.mergeAlpha(t,e)}else this.alphaQueue.push(e);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){const e=this.colorQueue.shift();y(void 0!==e),this.mergeAlpha(e,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},t=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}const t=At(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===t),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(null!=t?t:e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(const t of ht(e,this.decoderConfig)){const i=ft(e[t.offset]);if(i===Ge.RASL_N||i===Ge.RASL_R)return!0}return!1}sampleHandler(e){if(fe()){if(this.sampleQueue.length>0&&e.timestamp>=T(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}H(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();y(void 0!==t),e.setTimestamp(t),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}mergeAlpha(e,t){return d(this,null,function*(){const i=V();this.mergeAlphaPromises.push(i.promise);const r={sample:null};this.finalSamples.push(r);try{if(t){y(this.merger);const i=yield this.merger.merge(e,t);r.sample=new ba(i)}else r.sample=new ba(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(n){j(this.finalSamples,r),this.onError(n)}finally{j(this.mergeAlphaPromises,i.promise),i.resolve()}})}flush(){return d(this,null,function*(){var e;if(this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(y(this.decoder),yield Promise.all([this.decoder.flush(),null==(e=this.alphaDecoder)?void 0:e.flush()]),yield Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,this.alphaHadKeyframe=!1,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue.length=0,this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1),fe()){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1})}close(){var e;this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(y(this.decoder),"closed"!==this.decoder.state&&this.decoder.close(),this.alphaDecoder&&"closed"!==this.alphaDecoder.state&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,null==(e=this.merger)||e.close());for(const t of this.sampleQueue)t.close();this.sampleQueue.length=0}}let eo=null;class to{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!eo){const e=new Blob([`(${io.toString()})()`],{type:"application/javascript"});eo=URL.createObjectURL(e)}const e=J(navigator.hardwareConcurrency,1,4);for(let t=0;t{const t=e.data,i=this.pendingRequests.get(t.id);i&&(this.pendingRequests.delete(t.id),"error"in t?i.reject(new Error(t.error)):i.resolve(t.frame))}),e.addEventListener("error",e=>{const t=new Error(e.message||"Color/alpha merge worker error.");for(const i of this.pendingRequests.values())i.reject(t);this.pendingRequests.clear()}),this.workers.push(e)}}const i=this.nextRequestId++,r=V();this.pendingRequests.set(i,r);const n=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,n.postMessage({id:i,color:e,alpha:t},{transfer:[e,t]}),r.promise}close(){for(const t of this.workers)t.terminate();this.workers.length=0;const e=new Error("Color/alpha merger closed.");for(const t of this.pendingRequests.values())t.reject(e);this.pendingRequests.clear()}}const io=()=>{let e=null,t=null,i=Promise.resolve();self.addEventListener("message",e=>{const{id:t,color:n,alpha:s}=e.data;i=i.then(()=>d(null,null,function*(){try{const e=yield r(n,s);self.postMessage({id:t,frame:e},{transfer:[e]})}catch(e){self.postMessage({id:t,error:e.message})}finally{n.close(),s.close()}}))});const r=(e,t)=>d(null,null,function*(){const i=e.format,r=t.format;if(!i||!r)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");const o=i.includes("P10"),l=i.includes("P12"),c=r.includes("P10"),u=r.includes("P12");if(c!==o||u!==l)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${i}', alpha: '${r}').`);if("RGBX"===i||"RGBA"===i||"BGRX"===i||"BGRA"===i)return yield n(e,t,i);if("I420"===i||"I420P10"===i||"I420P12"===i||"I422"===i||"I422P10"===i||"I422P12"===i||"I444"===i||"I444P10"===i||"I444P12"===i)return yield s(e,t,i);if("NV12"===i)return yield a(e,t);throw new Error(`CPU color/alpha merging does not support format '${i}'.`)}),n=(e,t,i)=>d(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=new Uint8Array(4*d);yield e.copyTo(h);const f=yield o(t,c,u,1);for(let e=0,t=3;ed(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=i.includes("P10"),h=i.includes("P12"),f=d||h?2:1;let m,p;i.startsWith("I420")?(m=Math.ceil(c/2),p=Math.ceil(u/2)):i.startsWith("I422")?(m=Math.ceil(c/2),p=u):(m=c,p=u);const g=c*u,k=g*f,y=m*p*f,b=new Uint8Array(k+2*y+g*f);yield e.copyTo(b);const T=yield o(t,c,u,f),v=k+2*y;b.set(T,v);const S={format:i.slice(0,4)+"A"+i.slice(4),codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[b.buffer]};return new VideoFrame(b,S)}),a=(e,i)=>d(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=Math.ceil(c/2)*Math.ceil(u/2),f=e.allocationSize();t&&t.byteLength===f||(t=new Uint8Array(f)),yield e.copyTo(t);const m=new Uint8Array(d+2*h+d);m.set(t.subarray(0,d),0);const p=d,g=d+h,k=d;for(let e=0;ed(null,null,function*(){const s=t.allocationSize();e&&e.byteLength===s||(e=new Uint8Array(s)),yield t.copyTo(e);const a=t.format;if("RGBA"===a||"BGRA"===a||"RGBX"===a||"BGRX"===a){const t="RGBA"===a||"RGBX"===a?0:2,n=i*r;for(let i=0;i{if(!e||"object"!==typeof e)throw new TypeError("decoderOptions must be an object.");if(void 0!==e.hardwareAcceleration&&!["no-preference","prefer-hardware","prefer-software"].includes(e.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(void 0!==e.optimizeForLatency&&"boolean"!==typeof e.optimizeForLatency)throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")};class no extends Ya{constructor(e,t={}){if(!(e instanceof mo))throw new TypeError("videoTrack must be an InputVideoTrack.");ro(t),super(),this._track=e,this._decoderOptions=t}_createDecoder(e,t){return d(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof VideoDecoder)throw new Error(ye("VideoDecoder"));throw new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getRotation();let n=yield this._track.getDecoderConfig();const s=yield this._track.getTimeResolution();return y(i&&n),n=u(c({},n),{hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency}),new Za(e,t,i,n,r,s)})}_createPacketSink(){return new Ga(this._track)}getSample(e){return d(this,arguments,function*(e,t={}){Xa(e);try{for(var i,r,n,s=p(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class so{constructor(e,t={}){var i,r,n;if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof mo))throw new TypeError("videoTrack must be an InputVideoTrack.");if(t&&"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.alpha&&"boolean"!==typeof t.alpha)throw new TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==t.width&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(void 0!==t.height&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(void 0!==t.fit&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==t.width&&void 0!==t.height&&void 0===t.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==t.crop&&Ca(t.crop,"options."),void 0!==t.poolSize&&("number"!==typeof t.poolSize||!Number.isInteger(t.poolSize)||t.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");void 0!==t.decoderOptions&&ro(t.decoderOptions),this._videoTrack=e,this._alpha=null!=(i=t.alpha)&&i,this._options=t,this._fit=null!=(r=t.fit)?r:"fill",this._videoSampleSink=new no(e,t.decoderOptions),this._canvasPool=Array.from({length:null!=(n=t.poolSize)?n:0},()=>null)}_ensureInit(){var e;return null!=(e=this._initPromise)?e:this._initPromise=(()=>d(this,null,function*(){var e;const t=this._options,i=this._videoTrack,r=null!=(e=t.rotation)?e:yield i.getRotation(),n=yield i.getSquarePixelWidth(),s=yield i.getSquarePixelHeight(),[a,o]=r%180===0?[n,s]:[s,n];let l=t.crop;l&&(l=xa(l,a,o));let[c,u]=l?[l.width,l.height]:[a,o];const d=c/u;void 0!==t.width&&void 0===t.height?(c=t.width,u=Math.round(c/d)):void 0===t.width&&void 0!==t.height?(u=t.height,c=Math.round(u*d)):void 0!==t.width&&void 0!==t.height&&(c=t.width,u=t.height),this._width=c,this._height=u,this._rotation=r,this._crop=l}))()}_videoSampleToWrappedCanvas(e){const t=this._width,i=this._height;let r=this._canvasPool[this._nextCanvasIndex],n=!1;r||("undefined"!==typeof document?(r=document.createElement("canvas"),r.width=t,r.height=i):r=new OffscreenCanvas(t,i),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=r),n=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);const s=r.getContext("2d",{alpha:this._alpha||pe()});y(s),e._drawWithFitAndMipmapping(r,s,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:n,fillBlack:!this._alpha&&pe()});const a={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),a}getCanvas(e,t){return d(this,null,function*(){Xa(e),yield this._ensureInit();const i=yield this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)})}canvases(e,t,i){return f(this,null,function*(){yield new h(this._ensureInit()),yield*m(Y(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e)))})}canvasesAtTimestamps(e,t){return f(this,null,function*(){yield new h(this._ensureInit()),yield*m(Y(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e)))})}}class ao extends Qa{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new de,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const n=t=>{let i=t.timestamp;null!==this.expectedFirstTimestamp&&null===this.currentTimestamp&&(this.timestampOffset=this.expectedFirstTimestamp-i),i+=this.timestampOffset,(null===this.currentTimestamp||Math.abs(i-this.currentTimestamp)>=t.duration)&&(this.currentTimestamp=i);const n=this.currentTimestamp;if(this.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();const s=r.sampleRate;t.setTimestamp(Math.round(n*s)/s),e(t)},s=ja.find(e=>e.supports(i,r));if(s)this.customDecoder=new s,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof Oa))throw new TypeError("The argument passed to onSample must be an AudioSample.");n(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:e=>{try{n(new Oa(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(y(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--)):(y(this.decoder),null!=this.expectedFirstTimestamp||(this.expectedFirstTimestamp=e.timestamp),this.decoder.decode(e.toEncodedAudioChunk()))}flush(){return d(this,null,function*(){this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(y(this.decoder),yield this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0})}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(y(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class oo extends Qa{constructor(e,t,i){super(e,t),this.decoderConfig=i,this.currentTimestamp=null,y(ni.includes(i.codec)),this.codec=i.codec;const{dataType:r,sampleSize:n,littleEndian:s}=ki(this.codec);switch(this.inputSampleSize=n,n){case 1:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint8(t)-o(2,7):"signed"===r?this.readInputValue=(e,t)=>e.getInt8(t):"ulaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=~e;128&r&&(r&=-129,t=-1),i=5+((240&r)>>4);const n=(1<(e=>{let t=0,i=0,r=85^e;128&r&&(r&=-129,t=-1),i=4+((240&r)>>4);let n=0;return n=4!==i?1<e.getUint16(t,s)-o(2,15):"signed"===r?this.readInputValue=(e,t)=>e.getInt16(t,s):y(!1);break;case 3:"unsigned"===r?this.readInputValue=(e,t)=>G(e,t,s)-o(2,23):"signed"===r?this.readInputValue=(e,t)=>((e,t,i)=>G(e,t,i)<<8>>8)(e,t,s):y(!1);break;case 4:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint32(t,s)-o(2,31):"signed"===r?this.readInputValue=(e,t)=>e.getInt32(t,s):"float"===r?this.readInputValue=(e,t)=>e.getFloat32(t,s):y(!1);break;case 8:"float"===r?this.readInputValue=(e,t)=>e.getFloat64(t,s):y(!1);break;default:$(n),y(!1)}switch(n){case 1:"ulaw"===r||"alaw"===r?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(e,t,i)=>e.setUint8(t,i+o(2,7)));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i<<8,!0);break;case 4:this.outputSampleSize=4,"float"===r?(this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0)):(this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0);break;default:$(n),y(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=I(e.data),i=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,r=i*this.decoderConfig.numberOfChannels*this.outputSampleSize,n=new ArrayBuffer(r),s=new DataView(n);for(let c=0;c=a)&&(this.currentTimestamp=e.timestamp);const o=this.currentTimestamp;this.currentTimestamp+=a;const l=new Oa({format:this.outputFormat,data:n,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:i,timestamp:o});this.onSample(l)}flush(){return d(this,null,function*(){})}close(){}}class lo extends Ya{constructor(e){if(!(e instanceof po))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=e}_createDecoder(e,t){return d(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof AudioDecoder)throw new Error(ye("AudioDecoder"));throw new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getDecoderConfig();return y(i&&r),ni.includes(r.codec)?new oo(e,t,r):new ao(e,t,i,r)})}_createPacketSink(){return new Ga(this._track)}getSample(e){return d(this,arguments,function*(e,t={}){Xa(e);try{for(var i,r,n,s=p(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class co{constructor(e){if(!(e instanceof po))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new lo(e)}_audioSampleToWrappedArrayBuffer(e){const t={buffer:e.toAudioBuffer(),timestamp:e.timestamp,duration:e.duration};return e.close(),t}getBuffer(e,t){return d(this,null,function*(){Xa(e);const i=yield this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)})}buffers(e,t,i){return Y(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return Y(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class uo{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof mo}isAudioTrack(){return this instanceof po}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}getInternalCodecId(){return d(this,null,function*(){return this._backing.getInternalCodecId()})}get internalCodecId(){return ho(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}getLanguageCode(){return d(this,null,function*(){return this._backing.getLanguageCode()})}get languageCode(){return ho(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}getName(){return d(this,null,function*(){return this._backing.getName()})}get name(){return ho(this._backing.getName(),"name","getName")}getTimeResolution(){return d(this,null,function*(){return this._backing.getTimeResolution()})}get timeResolution(){return ho(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}isRelativeToUnixEpoch(){return d(this,null,function*(){return this._backing.isRelativeToUnixEpoch()})}getUnixTimeForTimestamp(e){return d(this,null,function*(){return this._backing.getUnixTimeForTimestamp(e)})}hasUnixTimeMapping(){return d(this,null,function*(){return null!==(yield this._backing.getUnixTimeForTimestamp(yield this.getFirstTimestamp()))})}getDisposition(){return d(this,null,function*(){return this._backing.getDisposition()})}get disposition(){return ho(this._backing.getDisposition(),"disposition","getDisposition")}getBitrate(){return d(this,null,function*(){return this._backing.getBitrate()})}getAverageBitrate(){return d(this,null,function*(){return this._backing.getAverageBitrate()})}getFirstTimestamp(){return d(this,null,function*(){var e;const t=yield this._backing.getFirstPacket({metadataOnly:!0});return null!=(e=null==t?void 0:t.timestamp)?e:0})}computeDuration(e){return d(this,null,function*(){var t,i;const r=yield this._backing.getPacket(1/0,c({metadataOnly:!0},e)),n=(null!=(t=null==r?void 0:r.timestamp)?t:0)+(null!=(i=null==r?void 0:r.duration)?i:0);return ie(n,yield this.getTimeResolution())})}getDurationFromMetadata(){return d(this,arguments,function*(e={}){return this._backing.getDurationFromMetadata(e)})}computePacketStats(e=1/0,t){return d(this,null,function*(){const i=new Ga(this);let r=1/0,n=-1/0,s=0,a=0;try{for(var o,l,u,d=p(i.packets(void 0,void 0,c({metadataOnly:!0},t)));o=!(l=yield d.next()).done;o=!1){const t=l.value;if(s>=e&&t.timestamp>=n)break;r=Math.min(r,t.timestamp),n=Math.max(n,t.timestamp+t.duration),s++,a+=t.byteLength}}catch(l){u=[l]}finally{try{o&&(l=d.return)&&(yield l.call(d))}finally{if(u)throw u[0]}}return{packetCount:s,averagePacketRate:s?Number((s/(n-r)).toPrecision(16)):0,averageBitrate:s?Number((8*a/(n-r)).toPrecision(16)):0}})}isLive(){return d(this,null,function*(){return null!==(yield this._backing.getLiveRefreshInterval())})}getLiveRefreshInterval(){return d(this,null,function*(){return this._backing.getLiveRefreshInterval()})}canBePairedWith(e){if(!(e instanceof uo))throw new TypeError("other must be an InputTrack.");return this.input===e.input&&this!==e&&(this._backing.getPairingMask()&e._backing.getPairingMask())!==BigInt("0")}getPairableTracks(e){return d(this,null,function*(){return this.input.getTracks(bo({filter:e=>e.canBePairedWith(this)},e))})}getPairableVideoTracks(e){return d(this,null,function*(){return this.input.getVideoTracks(bo({filter:e=>e.canBePairedWith(this)},e))})}getPairableAudioTracks(e){return d(this,null,function*(){return this.input.getAudioTracks(bo({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableVideoTrack(e){return d(this,null,function*(){return this.input.getPrimaryVideoTrack(bo({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableAudioTrack(e){return d(this,null,function*(){return this.input.getPrimaryAudioTrack(bo({filter:e=>e.canBePairedWith(this)},e))})}hasPairableTrack(e){return d(this,null,function*(){e&&(e=fo(e));const t=yield this.input.getTracks();for(const i of t)if(this.canBePairedWith(i)&&(!e||(yield e(i))))return!0;return!1})}hasPairableVideoTrack(e){return e&&(e=fo(e)),this.hasPairableTrack(t=>d(this,null,function*(){return t.isVideoTrack()&&(!e||(yield e(t)))}))}hasPairableAudioTrack(e){return e&&(e=fo(e)),this.hasPairableTrack(t=>d(this,null,function*(){return t.isAudioTrack()&&(!e||(yield e(t)))}))}}const ho=(e,t,i)=>{if(Te(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},fo=e=>{if(void 0!==e&&"function"!==typeof e)throw new TypeError("predicate, when provided, must be a function.");return e?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("predicate must return or resolve to a boolean value.");return e},r=e(t);return Te(r)?r.then(i):i(r)}:void 0};class mo extends uo{constructor(e,t){super(e,t),this._pixelAspectRatioCache=null,this._backing=t}get type(){return"video"}getCodec(){return d(this,null,function*(){return this._backing.getCodec()})}get codec(){return ho(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return d(this,null,function*(){var e,t,i;return null!=(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:"prores"===(yield this._backing.getCodec())})}getCodedWidth(){return d(this,null,function*(){return this._backing.getCodedWidth()})}get codedWidth(){return ho(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}getCodedHeight(){return d(this,null,function*(){return this._backing.getCodedHeight()})}get codedHeight(){return ho(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}getRotation(){return d(this,null,function*(){return this._backing.getRotation()})}get rotation(){return ho(this._backing.getRotation(),"rotation","getRotation")}getSquarePixelWidth(){return d(this,null,function*(){return this._backing.getSquarePixelWidth()})}get squarePixelWidth(){return ho(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}getSquarePixelHeight(){return d(this,null,function*(){return this._backing.getSquarePixelHeight()})}get squarePixelHeight(){return ho(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}getPixelAspectRatio(){return d(this,null,function*(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=Ee({num:(yield this.getSquarePixelWidth())*(yield this.getCodedHeight()),den:(yield this.getSquarePixelHeight())*(yield this.getCodedWidth())})})}get pixelAspectRatio(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=Ee({num:ho(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*ho(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:ho(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*ho(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")})}getDisplayWidth(){return d(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight()})}get displayWidth(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(void 0!==i){const e=ho(i,"displayWidth","getDisplayWidth");if(null!==e)return e}const r=ho(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return ho(r,"displayWidth","getDisplayWidth")}getDisplayHeight(){return d(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth()})}get displayHeight(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(void 0!==i){const e=ho(i,"displayHeight","getDisplayHeight");if(null!==e)return e}const r=ho(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return ho(r,"displayHeight","getDisplayHeight")}getColorSpace(){return d(this,null,function*(){return this._backing.getColorSpace()})}hasHighDynamicRange(){return d(this,null,function*(){const e=yield this._backing.getColorSpace();return"bt2020"===e.primaries||"smpte432"===e.primaries||"pq"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix})}canBeTransparent(){return d(this,null,function*(){return this._backing.canBeTransparent()})}getDecoderConfig(){return d(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return d(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return d(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(y(null!==t),Va.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(yield VideoDecoder.isConfigSupported(e)).supported}catch(e){return Me._error("Error during decodability check:",e),!1}})}determinePacketType(e){return d(this,null,function*(){if(!(e instanceof Ri))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const t=yield this.getCodec();if(null===t)return null;const i=yield this.getDecoderConfig();return y(i),At(t,i,e.data)})}computeFrameRateMetrics(){return d(this,arguments,function*(e={}){var t,i;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.targetPacketCount&&(!Ie(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");const r=yield this.getTimeResolution(),n=null!=(t=e.targetPacketCount)?t:256,s=new Ga(this),a=[];let o=-1/0,l=0;try{for(var c,u,d,h=p(s.packets(void 0,void 0,{metadataOnly:!0}));c=!(u=yield h.next()).done;c=!1){const e=u.value;if(a.length>=n&&e.timestamp>=o)break;a.push(e.timestamp),o=Math.max(o,e.timestamp),l++}}catch(u){d=[u]}finally{try{c&&(u=h.return)&&(yield u.call(h))}finally{if(d)throw d[0]}}const f=new Float64Array(a.length);for(let p=0;pe-t),x=P-1>>1,C=P>>1;let B=0,E=0,_=0;for(const p of I)if(_+=T.get(p),0===B&&_>x&&(B=p),_>C){E=p;break}const R=(y/B+y/E)/2;return{underlyingFrameRate:k,bestGuessFrameRate:null!==k?k:wo(R),minFrameRate:y/S,maxFrameRate:y/v,averageFrameRate:y*P/w,medianFrameRate:R,frameRateIsConstant:null!==k&&1===v&&1===S,probedPacketCount:l}})}}class po extends uo{constructor(e,t){super(e,t),this._backing=t}get type(){return"audio"}getCodec(){return d(this,null,function*(){return this._backing.getCodec()})}get codec(){return ho(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return d(this,null,function*(){var e,t,i;return null==(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))||i})}getNumberOfChannels(){return d(this,null,function*(){return this._backing.getNumberOfChannels()})}get numberOfChannels(){return ho(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}getSampleRate(){return d(this,null,function*(){return this._backing.getSampleRate()})}get sampleRate(){return ho(this._backing.getSampleRate(),"sampleRate","getSampleRate")}getDecoderConfig(){return d(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return d(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return d(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(y(null!==t),ja.some(i=>i.supports(t,e)))return!0;if(e.codec.startsWith("pcm-"))return!0;if("undefined"===typeof AudioDecoder)return!1;return!0===(yield AudioDecoder.isConfigSupported(e)).supported}catch(e){return Me._error("Error during decodability check:",e),!1}})}determinePacketType(e){return d(this,null,function*(){if(!(e instanceof Ri))throw new TypeError("packet must be an EncodedPacket.");return null===(yield this.getCodec())?null:"key"})}}const go=e=>-(null!=e?e:-1/0),ko=e=>-e,yo=e=>{if("object"!==typeof e||!e)throw new TypeError("query must be an object.");if(void 0!==e.filter&&"function"!==typeof e.filter)throw new TypeError("query.filter, when provided, must be a function.");if(void 0!==e.sortBy&&"function"!==typeof e.sortBy)throw new TypeError("query.sortBy, when provided, must be a function.");return{filter:e.filter?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("query.filter must return or resolve to a boolean.");return e},r=e.filter(t);return Te(r)?r.then(i):i(r)}:void 0,sortBy:e.sortBy?t=>{const i=e=>{if("number"!==typeof e&&(!Array.isArray(e)||!e.every(e=>"number"===typeof e)))throw new TypeError("query.sortBy must return or resolve to a number or an array of numbers.");return e},r=e.sortBy(t);return Te(r)?r.then(i):i(r)}:void 0}},bo=(e,t)=>({filter:(null==e?void 0:e.filter)||(null==t?void 0:t.filter)?i=>{var r,n;const s=null==(n=null==(r=null==e?void 0:e.filter)?void 0:r.call(e,i))||n,a=e=>{var r,n;return!1!==e&&(null==(n=null==(r=null==t?void 0:t.filter)?void 0:r.call(t,i))||n)};return Te(s)?s.then(a):a(s)}:void 0,sortBy:(null==e?void 0:e.sortBy)||(null==t?void 0:t.sortBy)?i=>{var r,n,s,a;const o=null!=(n=null==(r=null==e?void 0:e.sortBy)?void 0:r.call(e,i))?n:[],l=null!=(a=null==(s=null==t?void 0:t.sortBy)?void 0:s.call(t,i))?a:[],c=(e,t)=>[...Array.isArray(e)?e:[e],...Array.isArray(t)?t:[t]];return Te(o)||Te(l)?Promise.all([o,l]).then(([e,t])=>c(e,t)):c(o,l)}:void 0}),To=(e,t)=>d(null,null,function*(){let i=e;if(null==t?void 0:t.filter){const r=e.map(e=>t.filter(e));if(r.some(e=>Te(e))){const t=yield Promise.all(r);i=e.filter((e,i)=>t[i])}else i=e.filter((e,t)=>r[t])}if(!(null==t?void 0:t.sortBy))return i;const r=i.map(e=>t.sortBy(e)),n=r.some(e=>Te(e))?yield Promise.all(r):r;return i.map((e,t)=>({track:e,sortValue:n[t]})).sort((e,t)=>{var i,r;const n=Array.isArray(e.sortValue)?e.sortValue:[e.sortValue],s=Array.isArray(t.sortValue)?t.sortValue:[t.sortValue],a=Math.max(n.length,s.length);for(let o=0;oe.track)}),vo=(e,t)=>{const i=1e6,r=1+1e-9,n=[12,15,20,24e3/1001,24,25,3e4/1001,30,48,50,6e4/1001,60,100,12e4/1001,120,144,240];if(e.length<2)return null;const s=new Float64Array(e.length-1);for(let v=1;v0))return null;s[v-1]=t}const a=s.slice();a.sort();let o=a[Math.floor(.05*a.length)];for(let v=0;v<6;v++){let e=0,t=0;for(const n of s){const i=Math.max(1,Math.round(n/o));Math.abs(n-i*o)>=r||(e+=n,t+=i)}if(0===t)return null;const i=e/t;if(Math.abs(i-o)<=1e-12*Math.max(1,o)){o=i;break}o=i}let l=0,c=0,u=0;for(const v of s){const e=Math.max(1,Math.round(v/o));Math.abs(v-e*o)>=r||(l++,c+=v,u+=e)}if(l/s.length<.98)return null;o=c/u;const d=1/Math.min(u,1e3),h=Math.max(Number.EPSILON,o-d),f=o+d,m=t/f,p=t/h,g=t/o;let k=null,y=1/0;for(const v of n){if(vp)continue;const e=Math.abs(v/g-1);e{for(let r=1;r<=i;r++){const i=Math.floor(e*r)+1;if(i/r{const t=[24/1.001,30/1.001,60/1.001,120/1.001],i=[12,15,20,24,25,30,48,50,60,100,120,144,240];for(const s of t)if(Math.abs(s/e-1)<=5e-4)return s;let r=e,n=1/0;for(const s of i){const t=Math.abs(s/e-1);t<=.025&&t!(e instanceof Us)))throw new TypeError("options.formats must be an array of InputFormat.");if(!(e.source instanceof ds||e.source instanceof hs))throw new TypeError("options.source must be a Source or SourceRef.");if(e.source instanceof ds&&e.source._disposed)throw new TypeError("options.source must not be a disposed Source.");if(void 0!==e.initInput&&!(e.initInput instanceof Io))throw new TypeError("options.initInput, when provided, must be an Input.");void 0!==e.formatOptions&&((e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(`${t}, when provided, must be an object.`);if(void 0!==e.isobmff){if(!e.isobmff||"object"!==typeof e.isobmff)throw new TypeError(`${t}.isobmff, when provided, must be an object.`);if(void 0!==e.isobmff.resolveKeyId&&"function"!==typeof e.isobmff.resolveKeyId)throw new TypeError(`${t}.isobmff.resolveKeyId, when provided, must be a function.`)}if(void 0!==e.hls){if(!e.hls||"object"!==typeof e.hls)throw new TypeError(`${t}.hls, when provided, must be an object.`);if(void 0!==e.hls.offsetTimestampsByDateTime&&"boolean"!==typeof e.hls.offsetTimestampsByDateTime)throw new TypeError(`${t}.hls.offsetTimestampsByDateTime, when provided, must be a boolean.`)}})(e.formatOptions,"formatOptions"),this._formats=e.formats,this._initInput=null!=(t=e.initInput)?t:null,this._formatOptions=null!=(i=e.formatOptions)?i:{},e.source instanceof ds?this._rootRef=e.source.ref():this._rootRef=e.source,this._sourceRefs.push(this._rootRef)}get _rootSource(){return this._rootRef.source}_getSourceUncached(e){return d(this,null,function*(){y(this._rootSource instanceof fs);const t=yield this._rootSource._resolveRequest(e);return this._emit("source",{source:t.source,request:e,isRoot:e.isRoot}),t})}_getSourceCached(e,t=1){const i=this._sourceCache.find(i=>i.cacheGroup===t&&ms(i.request,e));if(i)return i.age++,Promise.resolve(i.sourceRef.source.ref());const r=this._sourceCachePromises.find(i=>i.cacheGroup===t&&ms(i.request,e));if(r)return r.promise.then(e=>e.sourceRef.source.ref());const n=(()=>d(this,null,function*(){const i=yield this._getSourceUncached(e);if(Ce(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount)>=4){const e=Be(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount?e.age:1/0);y(-1!==e);const i=this._sourceCache[e];this._sourceCache.splice(e,1),i.sourceRef.free(),j(this._sourceRefs,i.sourceRef)}this._sourceRefs.push(i);const r=this._sourceCachePromises.findIndex(t=>t.request===e);y(-1!==r),this._sourceCachePromises.splice(r,1);return{request:e,sourceRef:i,age:this._nextSourceCacheAge++,cacheGroup:t}}))();return this._sourceCachePromises.push({request:e,cacheGroup:t,promise:n}),n.then(e=>{const t=e.sourceRef.source.ref();return this._sourceCache.push(e),t})}_getDemuxer(){var e;return null!=(e=this._demuxerPromise)?e:this._demuxerPromise=(()=>d(this,null,function*(){var e;this._reader=new Bo(this._rootSource),this._emit("source",{source:this._rootSource,request:null,isRoot:!0});for(const t of this._formats){if(yield t._canReadInput(this))return this._format=t,null==(e=this._onFormatDetermined)||e.call(this,t),t._createDemuxer(this)}throw new xo}))()}get source(){return this._rootSource}getFormat(){return d(this,null,function*(){return yield this._getDemuxer(),y(this._format),this._format})}canRead(){return d(this,null,function*(){try{return yield this._getDemuxer(),!0}catch(e){if(e instanceof xo)return!1;throw e}})}getFirstTimestamp(e){return d(this,null,function*(){null!=e||(e=yield this.getTracks());const t=e.filter(e=>null!==e);if(0===t.length)return 0;const i=yield Promise.all(t.map(e=>e._backing.getFirstPacket({metadataOnly:!0}))),r=Math.min(...i.map(e=>{var t;return null!=(t=null==e?void 0:e.timestamp)?t:1/0}));return r===1/0?0:r})}computeDuration(e,t){return d(this,null,function*(){null!=e||(e=yield this.getTracks());const i=e.filter(e=>null!==e);if(0===i.length)return 0;const r=yield Promise.all(i.map(e=>e.computeDuration(t)));return Math.max(...r)})}getDurationFromMetadata(e,t){return d(this,null,function*(){null!=e||(e=yield this.getTracks());const i=e.filter(e=>null!==e),r=(yield Promise.all(i.map(e=>e.getDurationFromMetadata(t)))).filter(e=>null!==e);return 0===r.length?null:Math.max(...r)})}getTracks(e){return d(this,null,function*(){e&&(e=yo(e));const t=(yield this._getTrackBackings()).map(e=>this._wrapBackingAsTrack(e));return To(t,e)})}getVideoTracks(e){return d(this,null,function*(){e&&(e=yo(e));const t=(yield this.getTracks()).filter(e=>e.isVideoTrack());return To(t,e)})}getAudioTracks(e){return d(this,null,function*(){e&&(e=yo(e));const t=(yield this.getTracks()).filter(e=>e.isAudioTrack());return To(t,e)})}getPrimaryVideoTrack(e){return d(this,null,function*(){var t;e&&(e=yo(e));const i=bo(e,{sortBy:e=>d(null,null,function*(){return[ko((yield e.getDisposition()).default),ko(yield e.hasPairableAudioTrack()),ko(!(yield e.hasOnlyKeyPackets())),go(yield e.getBitrate())]})});return null!=(t=(yield this.getVideoTracks(i))[0])?t:null})}getPrimaryAudioTrack(e){return d(this,null,function*(){var t;e&&(e=yo(e));const i=yield this.getPrimaryVideoTrack(),r=bo(e,{sortBy:e=>d(this,null,function*(){return[ko(!i||e.canBePairedWith(i)),ko((yield e.getDisposition()).default),go(yield e.getBitrate())]})});return null!=(t=(yield this.getAudioTracks(r))[0])?t:null})}_getTrackBackings(){return d(this,null,function*(){var e;const t=yield this._getDemuxer();return null!=(e=this._trackBackingsCache)?e:this._trackBackingsCache=yield t.getTrackBackings()})}_wrapBackingAsTrack(e){const t=this._backingToTrack.get(e);if(t)return t;const i="video"===e.getType()?new mo(this,e):new po(this,e);return this._backingToTrack.set(e,i),i}getMimeType(){return d(this,null,function*(){return(yield this._getDemuxer()).getMimeType()})}getMetadataTags(){return d(this,null,function*(){return(yield this._getDemuxer()).getMetadataTags()})}dispose(){if(!this._disposed){this._disposed=!0;for(const e of this._sourceRefs)e.free();this._sourceRefs.length=0,this._demuxerPromise&&this._demuxerPromise.then(e=>e.dispose()).catch(()=>{})}}[Symbol.dispose](){this.dispose()}}class xo extends Error{constructor(e="Input has an unsupported or unrecognizable format."){super(e),this.name="UnsupportedInputFormatError"}}class Co extends Error{constructor(e="Input has been disposed."){super(e),this.name="InputDisposedError"}}class Bo{constructor(e){this.source=e}get fileSize(){const e=this.source._getFileSize();if(void 0===e)throw new Error("Reading file size too early; read required first.");return e}get fileSizeNonStrict(){var e;return null!=(e=this.source._getFileSize())?e:null}requestSlice(e,t){if(this.source._disposed)throw new Co;if(e<0)return null;if(null!==this.fileSizeNonStrict&&e+t>this.fileSizeNonStrict)return null;if(0===t){const t=new Uint8Array(0);return new Eo(t,I(t),0,e,e)}const i=e+t,r=this.source._read(e,i,0,us);return Te(r)?r.then(t=>t?new Eo(t.bytes,t.view,t.offset,e,i):null):r?new Eo(r.bytes,r.view,r.offset,e,i):null}requestSliceRange(e,t,i){if(this.source._disposed)throw new Co;if(e<0)return null;if(null!==this.fileSizeNonStrict)return this.requestSlice(e,J(this.fileSizeNonStrict-e,t,i));{const r=this.requestSlice(e,i),n=r=>r||(y(null!==this.fileSizeNonStrict),this.requestSlice(e,J(this.fileSizeNonStrict-e,t,i)));return Te(r)?r.then(n):n(r)}}requestEntireFile(){if(null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);return(()=>d(this,null,function*(){const e=[];let t=0;for(;;){if(1===e.length&&null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);let i=this.requestSliceRange(t,0,1024);if(Te(i)&&(i=yield i),!i||0===i.length)break;const r=Ro(i,i.length);e.push(r),t+=i.length}const i=new Uint8Array(t);let r=0;for(const n of e)i.set(n,r),r+=n.length;return new Eo(i,I(i),0,0,t)}))()}}class Eo{constructor(e,t,i,r,n){this.bytes=e,this.view=t,this.offset=i,this.start=r,this.end=n,this.bufferPos=r-i}static tempFromBytes(e){return new Eo(e,I(e),0,0,e.length)}get length(){return this.end-this.start}get filePos(){return this.offset+this.bufferPos}set filePos(e){this.bufferPos=e-this.offset}get remainingLength(){return Math.max(this.end-this.filePos,0)}skip(e){this.bufferPos+=e}slice(e,t=this.end-e){if(ethis.end)throw new RangeError("Slicing outside of original slice.");return new Eo(this.bytes,this.view,this.offset,e,e+t)}}const _o=(e,t)=>{if(e.filePose.end)throw new RangeError(`Tried reading [${e.filePos}, ${e.filePos+t}), but slice is [${e.start}, ${e.end}). This is likely an internal error, please report it alongside the file that caused it.`)},Ro=(e,t)=>{_o(e,t);const i=e.bytes.subarray(e.bufferPos,e.bufferPos+t);return e.bufferPos+=t,i},Fo=e=>(_o(e,1),e.view.getUint8(e.bufferPos++)),Ao=(e,t)=>{_o(e,2);const i=e.view.getUint16(e.bufferPos,t);return e.bufferPos+=2,i},Do=e=>{_o(e,2);const t=e.view.getUint16(e.bufferPos,!1);return e.bufferPos+=2,t},Mo=e=>{_o(e,3);const t=G(e.view,e.bufferPos,!1);return e.bufferPos+=3,t},No=e=>{_o(e,2);const t=e.view.getInt16(e.bufferPos,!1);return e.bufferPos+=2,t},Oo=(e,t)=>{_o(e,4);const i=e.view.getUint32(e.bufferPos,t);return e.bufferPos+=4,i},Lo=e=>{_o(e,4);const t=e.view.getUint32(e.bufferPos,!1);return e.bufferPos+=4,t},zo=e=>{_o(e,4);const t=e.view.getUint32(e.bufferPos,!0);return e.bufferPos+=4,t},Uo=e=>{_o(e,4);const t=e.view.getInt32(e.bufferPos,!1);return e.bufferPos+=4,t},qo=(e,t)=>{let i,r;return t?(i=Oo(e,!0),r=Oo(e,!0)):(r=Oo(e,!1),i=Oo(e,!1)),4294967296*r+i},Wo=e=>4294967296*Lo(e)+Lo(e),Ho=e=>4294967296*Uo(e)+Lo(e),Vo=e=>{const t=zo(e),i=(e=>{_o(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},jo=e=>{_o(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},Ko=e=>{_o(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},Xo=(e,t)=>{_o(e,t);let i="";for(let r=0;rx.decode(Ro(e,t)).split("\n").map(e=>e.trim()).filter(e=>{var t;return e.length>0&&!(null==(t=null==i?void 0:i.ignore)?void 0:t.call(i,e))});var Go,Qo,Yo,Jo;(Qo=Go||(Go={}))[Qo.Unsynchronisation=128]="Unsynchronisation",Qo[Qo.ExtendedHeader=64]="ExtendedHeader",Qo[Qo.ExperimentalIndicator=32]="ExperimentalIndicator",Qo[Qo.Footer=16]="Footer",(Jo=Yo||(Yo={}))[Jo.ISO_8859_1=0]="ISO_8859_1",Jo[Jo.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",Jo[Jo.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",Jo[Jo.UTF_8=3]="UTF_8";const Zo=128,el=10,tl=["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"],il=(e,t)=>{var i;const r=e.filePos;null!=t.raw||(t.raw={}),null!=(i=t.raw).TAG||(i.TAG=Ro(e,Zo-3)),e.filePos=r;const n=rl(e,30);n&&(null!=t.title||(t.title=n));const s=rl(e,30);s&&(null!=t.artist||(t.artist=s));const a=rl(e,30);a&&(null!=t.album||(t.album=a));const o=rl(e,4),l=Number.parseInt(o,10);Number.isInteger(l)&&l>0&&(null!=t.date||(t.date=new Date(String(l))));const c=Ro(e,30);let u;if(0===c[28]&&0!==c[29]){const i=c[29];i>0&&(null!=t.trackNumber||(t.trackNumber=i)),e.skip(-30),u=rl(e,28),e.skip(2)}else e.skip(-30),u=rl(e,30);u&&(null!=t.comment||(t.comment=u));const d=Fo(e);d{const i=Ro(e,t),r=ve(i.indexOf(0),i.length),n=i.subarray(0,r);let s="";for(let a=0;a{const t=e.filePos,i=Xo(e,3),r=Fo(e),n=Fo(e),s=Fo(e),a=Lo(e);if("ID3"!==i||255===r||255===n||0!==(2155905152&a))return e.filePos=t,null;let o=Ii(a);return s&Go.Footer&&(o+=el),{majorVersion:r,revision:n,flags:s,size:o}},sl=(e,t,i)=>{var r,n,s,a,o,l;if(![2,3,4].includes(t.majorVersion))return void Me._warn(`Unsupported ID3v2 major version: ${t.majorVersion}`);const c=t.flags&Go.Footer?t.size-el:t.size,u=Ro(e,c),d=new al(t,u);if(t.flags&Go.Unsynchronisation&&3===t.majorVersion&&d.ununsynchronizeAll(),t.flags&Go.ExtendedHeader){const e=d.readU32();3===t.majorVersion?d.pos+=e:d.pos+=e-4}for(;d.pos<=d.bytes.length-d.frameHeaderSize();){const e=d.readId3V2Frame();if(!e)break;const c=d.pos,u=d.pos+e.size;let h=!1,f=!1,m=!1;if(3===t.majorVersion?(h=!!(64&e.flags),f=!!(128&e.flags)):4===t.majorVersion&&(h=!!(4&e.flags),f=!!(8&e.flags),m=!!(2&e.flags)||!!(t.flags&Go.Unsynchronisation)),h)Me._warn(`Skipping encrypted ID3v2 frame ${e.id}`),d.pos=u;else if(f)Me._warn(`Skipping compressed ID3v2 frame ${e.id}`),d.pos=u;else{if(m&&d.ununsynchronizeRegion(d.pos,u),null!=i.raw||(i.raw={}),"TXXX"===e.id){const e=null!=(n=(r=i.raw).TXXX)?n:r.TXXX={},t=d.readId3V2TextEncoding(),s=d.readId3V2Text(t,u),a=d.readId3V2Text(t,u);null!=e[s]||(e[s]=a)}else"T"===e.id[0]?null!=(s=i.raw)[a=e.id]||(s[a]=d.readId3V2EncodingAndText(u)):null!=(o=i.raw)[l=e.id]||(o[l]=d.readBytes(e.size));switch(d.pos=c,e.id){case"TIT2":case"TT2":null!=i.title||(i.title=d.readId3V2EncodingAndText(u));break;case"TIT3":case"TT3":null!=i.description||(i.description=d.readId3V2EncodingAndText(u));break;case"TPE1":case"TP1":null!=i.artist||(i.artist=d.readId3V2EncodingAndText(u));break;case"TALB":case"TAL":null!=i.album||(i.album=d.readId3V2EncodingAndText(u));break;case"TPE2":case"TP2":null!=i.albumArtist||(i.albumArtist=d.readId3V2EncodingAndText(u));break;case"TRCK":case"TRK":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.trackNumber||(i.trackNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.tracksTotal||(i.tracksTotal=r))}break;case"TPOS":case"TPA":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.discNumber||(i.discNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.discsTotal||(i.discsTotal=r))}break;case"TCON":case"TCO":{const e=d.readId3V2EncodingAndText(u);let t=/^\((\d+)\)/.exec(e);if(t){const e=Number.parseInt(t[1]);if(void 0!==tl[e]){null!=i.genre||(i.genre=tl[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==tl[e]){null!=i.genre||(i.genre=tl[e]);break}}null!=i.genre||(i.genre=e)}break;case"TDRC":case"TDAT":{const e=d.readId3V2EncodingAndText(u),t=new Date(e);Number.isNaN(t.getTime())||null!=i.date||(i.date=t)}break;case"TYER":case"TYE":{const e=d.readId3V2EncodingAndText(u),t=Number.parseInt(e,10);Number.isInteger(t)&&(null!=i.date||(i.date=new Date(String(t))))}break;case"USLT":case"ULT":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.lyrics||(i.lyrics=d.readId3V2Text(e,u))}break;case"COMM":case"COM":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.comment||(i.comment=d.readId3V2Text(e,u))}break;case"APIC":case"PIC":{const e=d.readId3V2TextEncoding();let r;if(2===t.majorVersion){const e=d.readAscii(3);r="PNG"===e?"image/png":"JPG"===e?"image/jpeg":"image/*"}else r=d.readId3V2Text(e,u);const n=d.readU8(),s=d.readId3V2Text(e,u).trimEnd(),a=u-d.pos;if(a>=0){const e=d.readBytes(a);i.images||(i.images=[]),i.images.push({data:e,mimeType:r,kind:3===n?"coverFront":4===n?"coverBack":"unknown",description:s})}}break;default:d.pos+=e.size}d.pos=u}}};class al{constructor(e,t){this.header=e,this.bytes=t,this.pos=0,this.view=new DataView(t.buffer,t.byteOffset,t.byteLength)}frameHeaderSize(){return 2===this.header.majorVersion?6:10}ununsynchronizeAll(){const e=[];for(let t=0;t{const t=this.pos+e;if(t>this.bytes.length)return!1;if(t<=this.bytes.length-this.frameHeaderSize()){this.pos+=e;const t=this.readAscii(4);if("\0\0\0\0"!==t&&!/[0-9A-Z]{4}/.test(t))return!1}return!0};if(!s(i)){const e=4===this.header.majorVersion?t:Ii(t);s(e)&&(i=e)}return this.pos=n,{id:e,size:i,flags:r}}}readId3V2TextEncoding(){const e=this.readU8();if(e>3)throw new Error(`Unsupported text encoding: ${e}`);return e}readId3V2Text(e,t){const i=this.pos,r=this.readBytes(t-this.pos);switch(e){case Yo.ISO_8859_1:{let e="";for(let t=0;t0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}if(254===r[0]&&255===r[1]){const e=new TextDecoder("utf-16be"),t=ve(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}{const e=ve(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),x.decode(r.subarray(0,e))}case Yo.UTF_16_BE_NO_BOM:{const e=new TextDecoder("utf-16be"),t=ve(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(0,t))}case Yo.UTF_8:{const e=ve(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),x.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class ol{constructor(e){this.events=e,this.input=null,this.audioSink=null,this.audioIterator=null,this.audioContext=null,this.gainNode=null,this.audioContextStartTime=0,this.playbackTimeAtStart=0,this.latestScheduledEndTime=0,this.duration=Number.NaN,this.paused=!0,this.volume=.7,this.muted=!1,this.playbackRate=1,this.asyncId=0,this.queuedNodes=new Set}get currentTime(){return this.paused?this.playbackTimeAtStart:(this.audioContext.currentTime-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart}ensureAudioContext(e){if(this.audioContext)return;const t=window.AudioContext||window.webkitAudioContext;try{this.audioContext=new t({sampleRate:e})}catch(i){this.audioContext=new t}this.gainNode=this.audioContext.createGain(),this.gainNode.connect(this.audioContext.destination),this.updateGain()}updateGain(){if(!this.gainNode)return;const e=this.muted?0:this.volume;this.gainNode.gain.value=e*e}stopQueuedNodes(){this.queuedNodes.forEach(e=>e.stop()),this.queuedNodes.clear()}stopIterator(){return d(this,null,function*(){var e;yield null==(e=this.audioIterator)?void 0:e.return(),this.audioIterator=null})}handleNoAudioTrack(){this.audioSink=null,this.ensureAudioContext()}load(e,t){return d(this,null,function*(){++this.asyncId,yield this.stopIterator(),this.stopQueuedNodes(),this.paused=!0,this.playbackTimeAtStart=0,this.audioContextStartTime=0;const{input:i,audioTrack:r,duration:n}=e;return this.input=i,this.duration=n,r?null!==r.codec&&(yield r.canDecode())?(this.ensureAudioContext(r.sampleRate),this.audioSink=new co(r),void(null==t||t())):(this.audioSink=null,this.ensureAudioContext(),void(null==t||t())):(this.handleNoAudioTrack(),void(null==t||t()))})}runIterator(e){return d(this,null,function*(){if(!this.audioSink)return;yield this.stopIterator(),this.audioIterator=this.audioSink.buffers(this.currentTime);for(;;){if(e!==this.asyncId||this.paused)return;const i=[];let r=!1;try{for(let e=0;e<16;e++){const e=yield this.audioIterator.next();if(e.done){r=!0;break}i.push(e.value)}}catch(t){console.error("Audio iterator error:",t),r=!0}if(e!==this.asyncId||this.paused)return;i.length>0&&"suspended"===this.audioContext.state&&(yield this.audioContext.resume(),this.events.emit("canplay"),this.events.emit("playing"));for(const{buffer:e,timestamp:t}of i){const i=this.audioContext.createBufferSource();i.buffer=e,i.connect(this.gainNode),i.playbackRate.value=this.playbackRate;const r=this.audioContextStartTime+(t-this.playbackTimeAtStart)/this.playbackRate,n=(r+e.duration/this.playbackRate-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart;n>this.latestScheduledEndTime&&(this.latestScheduledEndTime=n),r>=this.audioContext.currentTime?i.start(r):i.start(this.audioContext.currentTime,(this.audioContext.currentTime-r)*this.playbackRate),this.queuedNodes.add(i),i.onended=()=>this.queuedNodes.delete(i)}if(r)break;yield new Promise(e=>setTimeout(e,0));const n=1;for(;this.latestScheduledEndTime-this.currentTime>n;){if(e!==this.asyncId||this.paused)return;yield new Promise(e=>setTimeout(e,50))}}})}play(){return d(this,null,function*(){if(!this.paused)return;this.audioContext||this.ensureAudioContext(),"suspended"===this.audioContext.state&&(yield this.audioContext.resume()),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart,this.paused=!1;const e=++this.asyncId;this.runIterator(e)})}pause(){this.paused||(this.playbackTimeAtStart=this.currentTime,this.paused=!0,this.stopIterator(),this.stopQueuedNodes())}seek(e){return d(this,null,function*(){this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart;const t=++this.asyncId;this.paused||this.runIterator(t)})}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){if(e!==this.playbackRate&&(this.paused||(this.playbackTimeAtStart=this.currentTime,this.audioContextStartTime=this.audioContext.currentTime),this.playbackRate=e,!this.paused)){const e=++this.asyncId;this.runIterator(e)}}destroy(){var e;this.asyncId++,this.pause(),null==(e=this.audioContext)||e.close(),this.audioContext=null,this.input=null,this.audioSink=null}}function ll(e){return d(this,null,function*(){var t,i;return null!=(i=null!=(t=yield e.getAverageBitrate())?t:yield e.getBitrate())?i:0})}const cl=/\.m3u8(?:$|[?#])/i;function ul(e){return"string"===typeof e&&cl.test(e)}function dl(e){const t=function(e){return"string"===typeof e?new vs(e):e instanceof Blob?new ks(e):"undefined"!==typeof ReadableStream&&e instanceof ReadableStream?new Ps(e):null!=e?e:null}(e);return t?new Io({source:t,formats:ul(e)?da:ua}):null}class hl{constructor(){this.active=!0,this.input=null,this.timers=new Set,this.controller="undefined"===typeof AbortController?void 0:new AbortController,this.cancellation=new Promise(e=>{this.resolveCancellation=e})}get signal(){var e;return null==(e=this.controller)?void 0:e.signal}own(e){this.active?this.input=e:e.dispose()}defer(e){if(!this.active)return;const t=setTimeout(()=>{this.timers.delete(t),this.active&&e()},0);this.timers.add(t)}wait(e,t){return d(this,null,function*(){try{yield Promise.race([e,this.cancellation,t>0?this.timeout(t):new Promise(()=>{})])}finally{void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0)}})}timeout(e){return new Promise((t,i)=>{this.deadline=setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){const e=this.input;this.input=null,null==e||e.dispose()}cancel(){var e;if(this.active){this.active=!1;for(const e of this.timers)clearTimeout(e);this.timers.clear(),void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0),this.resolveCancellation(),null==(e=this.controller)||e.abort(),this.disposeInput()}}}function fl(e){return d(this,arguments,function*({input:e,videoTrack:t,audioTrack:i}){const r=[t,i].filter(e=>null!==e),n=t||i,s=Boolean(n&&(yield n.isLive()));let a=Number.NaN;return r.length>0&&(a=yield e.getDurationFromMetadata(r,{skipLiveWait:!0}),null!==a||s||(a=yield e.computeDuration(r,{skipLiveWait:!0}))),s?Number.POSITIVE_INFINITY:null!=a?a:Number.NaN})}class ml{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:n=.12,dropLateFrames:s=!1,poster:a="",preflightRange:o=!1}){this.canvas=e,this.ctx=t,this.events=i,this.timeupdateInterval=r,this.avSyncTolerance=n,this.dropLateFrames=s,this.poster=a,this.preflightRange=o,this.input=null,this.videoSink=null,this.videoIterator=null,this.nextFrame=null,this.rafId=0,this.asyncId=0,this.width=0,this.height=0,this.duration=Number.NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1}preflight(e,t,i){return d(this,null,function*(){return function(e,t,i,r,n=()=>!0){return d(this,null,function*(){if((null==r?void 0:r.aborted)||!n())return!1;if(!t||"string"!==typeof e||ul(e))return!0;try{const t=yield fetch(e,r?{method:"HEAD",signal:r}:{method:"HEAD"});if((null==r?void 0:r.aborted)||!n())return!1;const s=t.headers.get("accept-ranges");return!(!s||"none"===s)||(i.emit("error",new Event("RangeNotSupported")),!1)}catch(s){return!((null==r?void 0:r.aborted)||!n())&&(console.warn("Preflight check failed:",s),!0)}})}(e,this.preflightRange,this.events,t,i)})}drawPoster(){if(!this.poster||this.posterDrawn)return;const e=new Image;e.onload=()=>{this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,this.ctx.drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e.src=this.poster}stopIterator(){return d(this,null,function*(){var e;yield null==(e=this.videoIterator)?void 0:e.return(),this.videoIterator=null})}clear(){this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height)}load(e,t){return d(this,null,function*(){++this.asyncId,yield this.stopIterator(),this.clear(),this.posterDrawn=!1;const{input:i,videoTrack:r,duration:n}=e;if(this.input=i,this.duration=n,!r)return this.handleNoVideoTrack(),void(null==t||t());if(null===r.codec||!(yield r.canDecode()))return this.handleNoVideoTrack(),void(null==t||t());const s=yield r.canBeTransparent();this.videoSink=new so(r,{poolSize:2,fit:"contain",alpha:s}),this.width=r.displayWidth,this.height=r.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,null==t||t(),yield this.resetIterator(0)})}handleNoVideoTrack(){this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster()}resetIterator(e){return d(this,null,function*(){var t,i;if(yield this.stopIterator(),!this.videoSink)return;this.videoIterator=this.videoSink.canvases(e);const r=null!=(t=(yield this.videoIterator.next()).value)?t:null,n=null!=(i=(yield this.videoIterator.next()).value)?i:null;this.nextFrame=n,r?this.ctx.drawImage(r.canvas,0,0):this.drawPoster()})}updateNextFrame(e){return d(this,null,function*(){var t;if(this.videoIterator&&!this.isFetching){this.isFetching=!0;try{for(;;){const i=null!=(t=(yield this.videoIterator.next()).value)?t:null;if(!i||e!==this.asyncId)return;const r=this.audioClock.currentTime,n=this.dropLateFrames?Math.max(.06,this.avSyncTolerance/Math.max(1,this.playbackRate)):0;if(!(this.dropLateFrames&&i.timestampr)return void(this.nextFrame=null)}}}finally{this.isFetching=!1}}})}render(){if(!this.audioClock)return;const e=this.audioClock.currentTime,t=Date.now();if(t-this.lastTimeUpdate>=this.timeupdateInterval&&(this.events.emit("timeupdate"),this.lastTimeUpdate=t),Number.isFinite(this.duration)&&e>=this.duration)return this.stop(),this.stalled=!1,this.events.emit("ended"),this.events.emit("pause"),void this.events.emit("canplay");this.nextFrame&&this.nextFrame.timestamp<=e?(this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.ctx.drawImage(this.nextFrame.canvas,0,0),this.nextFrame=null,this.updateNextFrame(this.asyncId),this.stalled&&(this.events.emit("canplay"),this.events.emit("playing"),this.stalled=!1)):this.nextFrame||(this.updateNextFrame(this.asyncId),!this.nextFrame&&Number.isFinite(this.duration)&&ethis.render())}start(e){this.audioClock=e,this.asyncId++,this.stalled=!1,this.updateNextFrame(this.asyncId),this.rafId=requestAnimationFrame(()=>this.render())}stop(){cancelAnimationFrame(this.rafId)}seek(e){return d(this,null,function*(){this.asyncId++,yield this.resetIterator(e)})}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){this.asyncId++,this.stop(),this.stopIterator(),this.posterDrawn=!1,this.videoSink=null,this.input=null}}class pl{constructor({canvas:e,ctx:t,events:i,option:r={}}){var n,s,a,o,l,c;this.events=i,this.option=r,this.audio=new ol(i),this.video=new ml({canvas:e,ctx:t,events:i,timeupdateInterval:null!=(n=r.timeupdateInterval)?n:250,avSyncTolerance:null!=(s=r.avSyncTolerance)?s:.12,dropLateFrames:null!=(a=r.dropLateFrames)&&a,poster:null!=(o=r.poster)?o:"",preflightRange:null!=(l=r.preflightRange)&&l}),this.paused=!0,this.ended=!1,this.readyState=0,this.networkState=0,this.error=null,this.seeking=!1,this.loadSeq=0,this.input=null,this.media=null,this.loadSession=null,this.destroyed=!1,null==(c=i.addEventListener)||c.call(i,"ended",()=>{this.ended=!0,this.paused=!0})}load(e){return d(this,null,function*(){var t;if(this.destroyed)return;const i=++this.loadSeq;if(null==(t=this.loadSession)||t.cancel(),i!==this.loadSeq||this.destroyed)return;if(this.pause(),i!==this.loadSeq||this.destroyed)return;this.disposeInput();const r=new hl;this.loadSession=r,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,r.defer(()=>this.events.emit("waiting")),r.defer(()=>this.events.emit("loadstart"));const n=Number.isFinite(this.option.loadTimeout)?this.option.loadTimeout:0;try{yield r.wait(this.performLoad(e,i,r),n)}catch(s){if(i!==this.loadSeq)return;const e=++this.loadSeq;if(r.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.error={code:4,message:s.message},this.networkState=3,this.events.emit("error")}})}performLoad(e,t){return d(this,arguments,function*(e,t,i=this.loadSession){if(!(yield this.video.preflight(e,null==i?void 0:i.signal,()=>t===this.loadSeq))||t!==this.loadSeq)return;const r=dl(e);if(!r)return this.video.handleNoVideoTrack(),void this.audio.handleNoAudioTrack();i.own(r);const n=yield function(e,t){return d(this,null,function*(){const i=yield e.getPrimaryVideoTrack(),r=i?yield i.getPrimaryPairableAudioTrack():yield e.getPrimaryAudioTrack(),n=yield fl({input:e,videoTrack:i,audioTrack:r}),s=i||r,a=ul(t);return{input:e,videoTrack:i,audioTrack:r,duration:n,isLive:!Number.isFinite(n)&&Boolean(s&&(yield s.isLive())),isHls:a,videoMode:a?"auto":"manual",audioMode:a?"auto":"manual"}})}(r,e);if(t!==this.loadSeq)return;this.input=r,this.media=n;let s=!n.videoTrack,a=!n.audioTrack;const o=()=>{s&&a&&(this.readyState=1,this.events.emit("loadedmetadata"),this.events.emit("durationchange"),this.events.emit("progress"))};try{if(yield Promise.all([this.video.load(n,()=>{t===this.loadSeq&&(s=!0,o())}),this.audio.load(n,()=>{t===this.loadSeq&&(a=!0,o())})]),t!==this.loadSeq)return;this.readyState=4,this.networkState=1,this.events.emit("loadeddata"),this.events.emit("canplay"),this.events.emit("canplaythrough"),this.events.emit("progress")}catch(l){if(t!==this.loadSeq)return;throw console.error("MediaBunny load error:",l),l}})}createTimeout(e){return new Promise((t,i)=>{setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){var e;null==(e=this.loadSession)||e.disposeInput(),this.input=null,this.media=null}replaceTracks(e){return d(this,arguments,function*({videoTrack:e,audioTrack:t,videoMode:i,audioMode:r}){if(!this.media)return;const n=u(c({},this.media),{videoTrack:e,audioTrack:t,videoMode:i,audioMode:r}),s=!this.paused,a=this.currentTime;this.pause(),this.ended=!1,this.seeking=!0,this.events.emit("seeking"),this.events.emit("waiting"),n.duration=yield fl(n),this.media=n,yield Promise.all([this.video.load(n),this.audio.load(n)]),yield Promise.all([this.video.seek(a),this.audio.seek(a)]),this.readyState=4,this.networkState=1,this.seeking=!1,this.events.emit("loadedmetadata"),this.events.emit("durationchange"),this.events.emit("progress"),this.events.emit("loadeddata"),this.events.emit("canplay"),this.events.emit("canplaythrough"),this.events.emit("seeked"),s&&(yield this.play())})}selectHlsQuality(e){return d(this,null,function*(){var t,i;if(!(null==(t=this.media)?void 0:t.isHls)||!this.input)return;const r=yield this.input.getVideoTracks(),n="auto"===e?yield this.input.getPrimaryVideoTrack():null!=(i=r.find(t=>t.id===e))?i:this.media.videoTrack;if(!n)return;let s=this.media.audioTrack,a=this.media.audioMode;s&&n.canBePairedWith(s)||(s=yield n.getPrimaryPairableAudioTrack(),a="auto"),yield this.replaceTracks({videoTrack:n,audioTrack:s,videoMode:"auto"===e?"auto":"manual",audioMode:a})})}selectHlsAudio(e){return d(this,null,function*(){var t,i;if(!(null==(t=this.media)?void 0:t.isHls)||!this.input)return;const r=yield this.input.getAudioTracks(),n="auto"===e?this.media.videoTrack?yield this.media.videoTrack.getPrimaryPairableAudioTrack():yield this.input.getPrimaryAudioTrack():null!=(i=r.find(t=>t.id===e))?i:this.media.audioTrack;if(!n)return;let s=this.media.videoTrack,a=this.media.videoMode;s&&n.canBePairedWith(s)||(s=yield n.getPrimaryPairableVideoTrack(),a="auto"),yield this.replaceTracks({videoTrack:s,audioTrack:n,videoMode:a,audioMode:"auto"===e?"auto":"manual"})})}getHlsState(){return function(e){return d(this,null,function*(){var t,i,r,n;if(!(null==e?void 0:e.isHls)||!e.input)return null;const[s,a]=yield Promise.all([e.input.getVideoTracks(),e.videoTrack?e.videoTrack.getPairableAudioTracks():[]]),[o,l]=yield Promise.all([Promise.all(s.map((e,t)=>d(null,null,function*(){return{id:e.id,track:e,index:t,name:yield e.getName(),height:yield e.getDisplayHeight(),bitrate:yield ll(e)}}))),Promise.all(a.map((e,t)=>d(null,null,function*(){const i=yield e.getName(),r=yield e.getLanguageCode();return{id:e.id,track:e,index:t,name:i,lang:r,language:r,bitrate:yield ll(e)}})))]);return{levels:o,audios:l,currentLevel:e.videoTrack&&null!=(t=o.find(t=>{var i;return t.id===(null==(i=e.videoTrack)?void 0:i.id)}))?t:null,currentAudio:e.audioTrack&&null!=(i=l.find(t=>{var i;return t.id===(null==(i=e.audioTrack)?void 0:i.id)}))?i:null,videoMode:null!=(r=e.videoMode)?r:"auto",audioMode:null!=(n=e.audioMode)?n:"auto"}})}(this.media)}play(){return d(this,null,function*(){this.paused&&(this.ended&&(this.ended=!1,yield this.seek(0)),this.paused=!1,yield this.audio.play(),this.video.start(this.audio),this.events.emit("play"),this.events.emit("playing"))})}pause(){this.paused||(this.paused=!0,this.audio.pause(),this.video.stop(),this.events.emit("pause"))}seek(e){return d(this,null,function*(){const t=!this.paused;this.ended=!1,this.seeking=!0,this.events.emit("seeking"),this.events.emit("waiting"),this.pause(),yield Promise.all([this.audio.seek(e),this.video.seek(e)]),this.seeking=!1,this.events.emit("seeked"),t&&!this.ended&&(yield this.play())})}setVolume(e,t){this.audio.setVolume(e,t)}setPlaybackRate(e){this.audio.setPlaybackRate(e),this.video.setPlaybackRate(e)}destroy(){var e;this.destroyed||(this.destroyed=!0,this.loadSeq++,null==(e=this.loadSession)||e.cancel(),this.pause(),this.disposeInput(),this.audio.destroy(),this.video.destroy())}get currentTime(){return this.audio.currentTime}get duration(){var e,t,i;return null!=(i=null!=(t=null==(e=this.media)?void 0:e.duration)?t:this.audio.duration)?i:this.video.duration}get videoWidth(){return this.video.width}get videoHeight(){return this.video.height}}class gl{constructor({art:e,canvas:t,ctx:i,option:r}){var n,s;this.art=e,this.canvas=t,this.option=r,this.events=new k,this.engine=new pl({canvas:t,ctx:i,events:this.events,option:r}),this._src=null,this._volume=null!=(n=r.volume)?n:.7,this._muted=!!r.muted,this._playbackRate=1,this.engine.setVolume(this._volume,this._muted),this.setupEventForwarding(),r.source?this.src=r.source:(null==(s=e.option)?void 0:s.url)&&(this.src=e.option.url)}setupEventForwarding(){const{events:e}=this.art.constructor.config;e.forEach(e=>{this.events.addEventListener(e,e=>{this.art.emit(`video:${e.type}`,e)})})}addEventListener(e,t){this.events.addEventListener(e,t)}removeEventListener(e,t){this.events.removeEventListener(e,t)}get src(){return this._src}set src(e){this._src=e,e&&this.engine.load(e)}get currentSrc(){return this._src}get currentTime(){return this.engine.currentTime}set currentTime(e){this.engine.seek(Number(e)||0)}get duration(){return this.engine.duration}get buffered(){return this.createTimeRanges(0,this.engine.duration)}get played(){return this.createTimeRanges(0,this.engine.currentTime)}get seekable(){return this.createTimeRanges(0,this.engine.duration)}createTimeRanges(e,t){const i=this.engine.duration;return!i||Number.isNaN(i)||t<=0?{length:0,start:()=>0,end:()=>0}:{length:1,start:()=>e,end:()=>t}}get paused(){return this.engine.paused}get playing(){return!this.engine.paused&&!this.engine.ended}get ended(){return this.engine.ended}get seeking(){return this.engine.seeking}get readyState(){return this.engine.readyState}get networkState(){return this.engine.networkState}get error(){return this.engine.error}get playbackRate(){return this._playbackRate}set playbackRate(e){const t=Number(e);Number.isNaN(t)||t<=0||(this._playbackRate=t,this.engine.setPlaybackRate(t),this.events.emit("ratechange"))}get volume(){return this._volume}set volume(e){this._volume=function(e,t,i){return Math.max(t,Math.min(i,Number(e)||0))}(e,0,1),this._muted=!1,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}get muted(){return this._muted}set muted(e){this._muted=!!e,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}play(){return this.engine.play()}pause(){this.engine.pause()}load(){this._src&&this.engine.load(this._src)}getM3u8State(){return this.engine.getHlsState()}switchM3u8Quality(e){return this.engine.selectHlsQuality(e)}switchM3u8Audio(e){return this.engine.selectHlsAudio(e)}get videoWidth(){return this.engine.videoWidth}get videoHeight(){return this.engine.videoHeight}get poster(){return this.option.poster||""}set poster(e){this.option.poster=e}get autoplay(){return this.option.autoplay||!1}set autoplay(e){}get loop(){return this.option.loop||!1}set loop(e){}get controls(){return!1}set controls(e){}get playsInline(){return!0}set playsInline(e){}get crossOrigin(){return this.option.crossOrigin||""}set crossOrigin(e){}get preload(){return"auto"}set preload(e){}get defaultMuted(){return!1}set defaultMuted(e){}get defaultPlaybackRate(){return 1}set defaultPlaybackRate(e){}canPlayType(e){return"maybe"}getBoundingClientRect(){return this.canvas.getBoundingClientRect()}requestVideoFrameCallback(e){return requestAnimationFrame(t=>{e(t,{presentationTime:this.engine.currentTime,expectedDisplayTime:t+16.6,width:this.engine.videoWidth,height:this.engine.videoHeight,mediaTime:this.engine.currentTime,presentedFrames:0,processingDuration:0,captureTime:t,receiveTime:t,rtpTimestamp:0})})}cancelVideoFrameCallback(e){cancelAnimationFrame(e)}setAttribute(e,t){"src"===e?this.src=t:"autoplay"===e?this.autoplay=t:"loop"===e?this.loop=t:"muted"===e?this.muted=!0:this.canvas.setAttribute(e,t)}destroy(){this.engine.destroy()}}return function(e={}){return t=>{const{constructor:i}=t,{createElement:r}=i.utils,n=r("canvas"),s=n.getContext("2d"),a=new gl({art:t,canvas:n,ctx:s,option:e});t.mediabunny=a;const o={};for(const e in n)"function"===typeof n[e]&&(o[e]=n[e].bind(n));const l=new Set([...Object.getOwnPropertyNames(a),...Object.getOwnPropertyNames(Object.getPrototypeOf(a))]);for(const e of l)"constructor"!==e&&(e in n||Object.defineProperty(n,e,{get(){const t=a[e];return"function"===typeof t?t.bind(a):t},set(t){a[e]=t},configurable:!0,enumerable:!0}));for(const e in o)n[e]=(...t)=>o[e](...t);function c(){var e;(null==(e=t.template)?void 0:e.$player)&&!t.option.autoSize&&Object.assign(n.style,{width:"100%",height:"100%",objectFit:"contain"})}return t.on("resize",c),t.on("video:loadedmetadata",c),function({art:e,shim:t,option:i}){if(i.m3u8)return e.on("video:loadedmetadata",u),e.on("restart",u),{update:u};function r(t){e.controls.cache.has(t)&&e.controls.remove(t)}function n(t){e.setting.find(t)&&e.setting.remove(t)}function s(){r("mediabunny-quality"),n("mediabunny-quality")}function a(){r("mediabunny-audio"),n("mediabunny-audio")}function o(e={}){return e.control||e.setting}function l(r){return d(this,null,function*(){var n;const a=(null==(n=i.m3u8)?void 0:n.quality)||{};if(!o(a)||!(null==r?void 0:r.levels.length))return void s();const l=a.auto||"Auto",c=a.title||"Quality",h=a.getName||(e=>e.name||`${e.height}P`),f=r.currentLevel?h(r.currentLevel):l,m=g(r.levels.map(e=>{var t;return{html:h(e),value:e.id,default:(null==(t=r.currentLevel)?void 0:t.id)===e.id}}),"html").sort((e,t)=>{const i=r.levels.find(t=>t.id===e.value),n=r.levels.find(e=>e.id===t.value);return((null==n?void 0:n.height)||0)-((null==i?void 0:i.height)||0)});m.push({html:l,value:"auto",default:!r.currentLevel});const p=i=>d(null,null,function*(){return yield t.switchM3u8Quality(i.value),e.notice.show=`${c}: ${i.html}`,yield u(),i.html});a.control&&e.controls.update({name:"mediabunny-quality",position:"right",html:f,style:{padding:"0 10px"},selector:m,onSelect:p}),a.setting&&e.setting.update({name:"mediabunny-quality",tooltip:f,html:c,icon:'',width:200,selector:m,onSelect:p})})}function c(r){return d(this,null,function*(){var n;const s=(null==(n=i.m3u8)?void 0:n.audio)||{};if(!o(s)||!(null==r?void 0:r.audios.length)||r.audios.length<2)return void a();const l=s.auto||"Auto",c=s.title||"Audio",h=s.getName||(e=>e.name||e.lang||e.language),f=r.currentAudio?h(r.currentAudio):l,m=g(r.audios.map(e=>{var t;return{html:h(e),value:e.id,default:(null==(t=r.currentAudio)?void 0:t.id)===e.id}}),"html");m.push({html:l,value:"auto",default:!r.currentAudio});const p=i=>d(null,null,function*(){return yield t.switchM3u8Audio(i.value),e.notice.show=`${c}: ${i.html}`,yield u(),i.html});s.control&&e.controls.update({name:"mediabunny-audio",position:"right",html:f,style:{padding:"0 10px"},selector:m,onSelect:p}),s.setting&&e.setting.update({name:"mediabunny-audio",tooltip:f,html:c,icon:'',width:200,selector:m,onSelect:p})})}function u(){return d(this,null,function*(){const e=yield t.getM3u8State();if(!e)return s(),void a();yield Promise.all([l(e),c(e)])})}}({art:t,shim:a,option:e}),t.on("destroy",()=>{delete t.mediabunny,a.destroy()}),n}}}); +!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.artplayerProxyMediabunny=t(),define(function(){return e.artplayerProxyMediabunny})):(e="undefined"!==typeof globalThis?globalThis:e||self).artplayerProxyMediabunny=t()}(this,function(){"use strict";var e,t=Object.defineProperty,i=Object.defineProperties,r=Object.getOwnPropertyDescriptors,n=Object.getOwnPropertySymbols,s=Object.prototype.hasOwnProperty,a=Object.prototype.propertyIsEnumerable,o=(e,t)=>(t=Symbol[e])?t:Symbol.for("Symbol."+e),l=e=>{throw TypeError(e)},c=Math.pow,u=(e,i,r)=>i in e?t(e,i,{enumerable:!0,configurable:!0,writable:!0,value:r}):e[i]=r,d=(e,t)=>{for(var i in t||(t={}))s.call(t,i)&&u(e,i,t[i]);if(n)for(var i of n(t))a.call(t,i)&&u(e,i,t[i]);return e},h=(e,t)=>i(e,r(t)),f=(e,t,i)=>t.has(e)||l("Cannot "+i),m=(e,t,i)=>(f(e,t,"read from private field"),i?i.call(e):t.get(e)),p=(e,t,i)=>new Promise((r,n)=>{var s=e=>{try{o(i.next(e))}catch(t){n(t)}},a=e=>{try{o(i.throw(e))}catch(t){n(t)}},o=e=>e.done?r(e.value):Promise.resolve(e.value).then(s,a);o((i=i.apply(e,t)).next())}),g=function(e,t){this[0]=e,this[1]=t},k=(e,t,i)=>{var r,n=(e,t,r,s)=>{try{var a=i[e](t),o=(t=a.value)instanceof g,l=a.done;Promise.resolve(o?t[0]:t).then(i=>o?n("return"===e?e:"next",t[1]?{done:i.done,value:i.value}:i,r,s):r({value:i,done:l})).catch(e=>n("throw",e,r,s))}catch(c){s(c)}},s=(e,t,i,s)=>a[e]=a=>(t=new Promise((t,i,s)=>(s=()=>n(e,a,t,i),r?r.then(s):s())),s=()=>r===i&&(r=0),r=i=t.then(s,s),t),a={};return i=i.apply(e,t),a[o("asyncIterator")]=()=>a,s("next"),s("throw"),s("return"),a},y=e=>{var t,i=e[o("asyncIterator")],r=!1,n={};return null==i?(i=e[o("iterator")](),t=e=>n[e]=t=>i[e](t)):(i=i.call(e),t=e=>n[e]=t=>{if(r){if(r=!1,"throw"===e)throw t;return t}return r=!0,{done:!1,value:new g(new Promise(r=>{var n=i[e](t);n instanceof Object||l("Object expected"),r(n)}),1)}}),n[o("iterator")]=()=>n,t("next"),"throw"in i?t("throw"):n.throw=e=>{throw e},"return"in i&&t("return"),n},b=(e,t,i)=>(t=e[o("asyncIterator")])?t.call(e):(e=e[o("iterator")](),t={},(i=(i,r)=>(r=e[i])&&(t[i]=t=>new Promise((i,n,s)=>(t=r.call(e,t),s=t.done,Promise.resolve(t.value).then(e=>i({value:e,done:s}),n)))))("next"),i("return"),t);function T(e,t){const i=new Map;return e.filter(e=>{const r=e[t];return void 0===r||!i.has(r)&&i.set(r,1)})}class v{constructor(){var t,i,r;t=this,r=!1,(i=e).has(t)?l("Cannot add the same private member more than once"):i instanceof WeakSet?i.add(t):i.set(t,r),this.listeners=new Map}addEventListener(t,i){var r;m(this,e)||(this.listeners.has(t)||this.listeners.set(t,[]),null==(r=this.listeners.get(t))||r.push(i))}removeEventListener(e,t){const i=this.listeners.get(e);if(!i)return;const r=i.indexOf(t);r>=0&&i.splice(r,1)}emit(t,i){var r;if(m(this,e))return;const n=Object.assign(new Event(t),{detail:i});null==(r=this.listeners.get(t))||r.forEach(t=>{m(this,e)||t(n)})}destroy(){var t,i,r,n;r=!0,f(t=this,i=e,"write to private field"),n?n.call(t,r):i.set(t,r),this.listeners.clear()}}function S(e){if(!e)throw new Error("Assertion failed.")}e=new WeakMap;const w=e=>{const t=(e%360+360)%360;if(0===t||90===t||180===t||270===t)return t;throw new Error(`Invalid rotation ${e}.`)},P=e=>e&&e[e.length-1],I=e=>{let t=0;for(;0===e.readBits(1)&&t<32;)t++;if(t>=32)throw new Error("Invalid exponential-Golomb code.");return(1<{const i=t+1,r=Math.floor(Math.log2(i));e.writeBits(r,0),e.writeBits(1,1),e.writeBits(r,i-c(2,r))},C=e=>{const t=I(e);return 0===(1&t)?-(t>>1):t+1>>1},B=e=>e.constructor===Uint8Array?e:ArrayBuffer.isView(e)?new Uint8Array(e.buffer,e.byteOffset,e.byteLength):new Uint8Array(e),E=e=>e.constructor===DataView?e:ArrayBuffer.isView(e)?new DataView(e.buffer,e.byteOffset,e.byteLength):new DataView(e),_=new TextDecoder,R=e=>Object.fromEntries(Object.entries(e).map(([e,t])=>[t,e])),F={bt709:1,bt470bg:5,smpte170m:6,bt2020:9,smpte432:12},A=R(F),D={bt709:1,smpte170m:6,linear:8,"iec61966-2-1":13,pq:16,hlg:18},M=R(D),N={rgb:0,bt709:1,bt470bg:5,smpte170m:6,"bt2020-ncl":9},O=R(N),L=e=>!!e&&!!e.primaries&&!!e.transfer&&!!e.matrix&&void 0!==e.fullRange,z={primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0},U=e=>e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e);class q{constructor(){this.currentPromise=Promise.resolve(),this.pending=0}acquire(){return p(this,null,function*(){let e;const t=new Promise(t=>{let i=!1;e=()=>{i||(t(),this.pending--,i=!0)}}),i=this.currentPromise;return this.currentPromise=t,this.pending++,yield i,e})}}const W=/^[0-9a-fA-F]+$/,H=e=>[...e].map(e=>e.toString(16).padStart(2,"0")).join(""),V=e=>(e=(e=(e=(e=(e=e>>1&1431655765|(1431655765&e)<<1)>>2&858993459|(858993459&e)<<2)>>4&252645135|(252645135&e)<<4)>>8&16711935|(16711935&e)<<8)>>16&65535|(65535&e)<<16)>>>0,j=(e,t,i)=>{let r=0,n=e.length-1,s=-1;for(;r<=n;){const a=r+n>>1,o=i(e[a]);o===t?(s=a,n=a-1):o{let r=0,n=e.length-1,s=-1;for(;r<=n;){const a=r+(n-r+1)/2|0;i(e[a])<=t?(s=a,r=a+1):n=a-1}return s},X=(e,t,i)=>{const r=K(e,i(t),i);e.splice(r+1,0,t)},$=()=>{let e,t;return{promise:new Promise((i,r)=>{e=i,t=r}),resolve:e,reject:t}},G=(e,t)=>{const i=e.indexOf(t);-1!==i&&e.splice(i,1)},Q=(e,t)=>{for(let i=e.length-1;i>=0;i--)if(t(e[i]))return e[i]},Y=(e,t)=>{for(let i=e.length-1;i>=0;i--)if(t(e[i]))return i;return-1},J=e=>{throw new Error(`Unexpected value: ${e}`)},Z=(e,t,i)=>{const r=e.getUint8(t),n=e.getUint8(t+1),s=e.getUint8(t+2);return i?r|n<<8|s<<16:r<<16|n<<8|s},ee=(e,t,i,r)=>{i>>>=0,i&=16777215,e.setUint8(t,i>>>16&255),e.setUint8(t+1,i>>>8&255),e.setUint8(t+2,255&i)},te=(e,t)=>({next(){return p(this,null,function*(){const i=yield e.next();return i.done?{value:void 0,done:!0}:{value:t(i.value),done:!1}})},return:()=>e.return(),throw:t=>e.throw(t),[Symbol.asyncIterator](){return this}}),ie=(e,t,i)=>Math.max(t,Math.min(i,e)),re="und",ne=e=>{const t=Math.round(e);return Math.abs(e/t-1)<10*Number.EPSILON?t:e},se=(e,t)=>Math.round(e/t)*t,ae=(e,t)=>Math.round(e*t)/t,oe=(e,t)=>Math.floor(e/t)*t,le=e=>{let t=0;for(;0!==e;)e&=e-1,t++;return t},ce=/^[a-z]{3}$/,ue=e=>ce.test(e),de=1e6*(1+Number.EPSILON),he=(e,t)=>{const i=d(d({},e),t);if(e.headers||t.headers){const r=e.headers?fe(e.headers):{},n=t.headers?fe(t.headers):{},s=d({},r);Object.entries(n).forEach(([e,t])=>{const i=Object.keys(s).find(t=>t.toLowerCase()===e.toLowerCase());i&&delete s[i],s[e]=t}),i.headers=s}return i},fe=e=>{if(e instanceof Headers){const t={};return e.forEach((e,i)=>{t[i]=e}),t}if(Array.isArray(e)){const t={};return e.forEach(([e,i])=>{t[e]=i}),t}return e},me=(e,t,i,r,n)=>p(null,null,function*(){let s=0;for(;;)try{return yield e(t,i)}catch(a){if(n())throw a;s++;const e=r(s,a,t);if(null===e)throw a;if(ze._error("Retrying failed fetch. Error:",a),!Number.isFinite(e)||e<0)throw new TypeError("Retry delay must be a non-negative finite number.");if(e>0&&(yield Me(1e3*e)),n())throw a}});class pe{constructor(){this.currentPromise=Promise.resolve()}call(e){return this.currentPromise=this.currentPromise.then(e)}}let ge=null;const ke=()=>{var e;return null!==ge?ge:ge=!("undefined"===typeof navigator||!((null==(e=navigator.vendor)?void 0:e.match(/apple/i))||/AppleWebKit/.test(navigator.userAgent)&&!/Chrome/.test(navigator.userAgent)||/\b(iPad|iPhone|iPod)\b/.test(navigator.userAgent)))};let ye=null;const be=()=>{var e;return null!==ye?ye:ye="undefined"!==typeof navigator&&(null==(e=navigator.userAgent)?void 0:e.includes("Firefox"))};let Te=null;const ve=()=>{var e;return null!==Te?Te:Te=!("undefined"===typeof navigator||!(null==(e=navigator.vendor)?void 0:e.includes("Google Inc"))&&!/Chrome/.test(navigator.userAgent))},Se=e=>"undefined"===typeof globalThis.isSecureContext||globalThis.isSecureContext?`${e} is not available in this environment.`:`${e} is not available in this environment; this may be because this page is running in an insecure context. Try serving your page over HTTPS or use localhost.`,we=p(null,null,function*(){}).constructor,Pe=e=>e instanceof we||e instanceof Promise||"function"===typeof(null==e?void 0:e.then),Ie=(e,t)=>-1!==e?e:t,xe=(e,t,i,r)=>e<=r&&i<=t,Ce=e=>{const t=atob(e),i=new Uint8Array(t.length);for(let r=0;r{null!=Symbol.dispose||(Symbol.dispose=Symbol("Symbol.dispose"))},Ee=e=>"number"===typeof e&&!Number.isNaN(e),_e=(e,t)=>{if(t.includes("://"))return t;if(e.includes("://")){const t=e.indexOf("?");-1!==t&&(e=e.slice(0,t))}let i;if(t.startsWith("/")){const r=e.indexOf("://");if(-1===r)i=t;else{const n=e.indexOf("/",r+3);i=-1===n?e+t:e.slice(0,n)+t}}else{const r=e.lastIndexOf("/");i=-1===r?t:e.slice(0,r+1)+t}let r="";const n=i.indexOf("://");if(-1!==n){const e=i.indexOf("/",n+3);-1!==e&&(r=i.slice(0,e),i=i.slice(e))}const s=i.split("/"),a=[];for(const o of s)".."===o?a.pop():"."!==o&&a.push(o);return r+a.join("/")},Re=(e,t)=>{let i=0;for(let r=0;r{let i=-1,r=1/0;for(let n=0;n{S(Number.isInteger(e.num)),S(Number.isInteger(e.den)),S(0!==e.den);let t=Math.abs(e.num),i=Math.abs(e.den);for(;0!==i;){const e=t%i;t=i,i=e}const r=t||1;return{num:e.num/r,den:e.den/r}},De=(e,t)=>{if("object"!==typeof e||!e)throw new TypeError(`${t} must be an object.`);if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(`${t}.left must be a non-negative integer.`);if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(`${t}.top must be a non-negative integer.`);if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(`${t}.width must be a non-negative integer.`);if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(`${t}.height must be a non-negative integer.`)},Me=e=>new Promise(t=>setTimeout(t,e));class Ne{constructor(){this._listeners=new Map}on(e,t,i){var r;this._listeners.has(e)||this._listeners.set(e,new Set);const n={fn:t,once:null!=(r=null==i?void 0:i.once)&&r};return this._listeners.get(e).add(n),()=>{var t;null==(t=this._listeners.get(e))||t.delete(n)}}_emit(...e){const[t,i]=e,r=this._listeners.get(t);if(r)for(const s of r){try{s.fn(i)}catch(n){console.error(n)}s.once&&r.delete(s)}}}var Oe,Le;(Le=Oe||(Oe={}))[Le.Silent=0]="Silent",Le[Le.Errors=1]="Errors",Le[Le.Warnings=2]="Warnings",Le[Le.Info=3]="Info";class ze{constructor(){}static get level(){return ze._level}static set level(e){if(e!==Oe.Silent&&e!==Oe.Errors&&e!==Oe.Warnings&&e!==Oe.Info)throw new TypeError("Invalid log level. Use one of the values of the LogLevel enum.");ze._level=e}static get _emitter(){var e;return null!=(e=ze._emitterInstance)?e:ze._emitterInstance=new Ne}static on(e,t,i){return ze._emitter.on(e,t,i)}static _error(...e){ze._emitter._emit("error",e),ze._level>=Oe.Errors&&console.error(...e)}static _warn(...e){ze._emitter._emit("warn",e),ze._level>=Oe.Warnings&&console.warn(...e)}static _info(...e){ze._emitter._emit("info",e),ze._level>=Oe.Info&&console.info(...e)}}ze._level=Oe.Info,ze._emitterInstance=null;class Ue{constructor(e,t){if(this.data=e,this.mimeType=t,!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("string"!==typeof t)throw new TypeError("mimeType must be a string.")}}class qe{constructor(e,t,i,r){if(this.data=e,this.mimeType=t,this.name=i,this.description=r,!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if(void 0!==t&&"string"!==typeof t)throw new TypeError("mimeType, when provided, must be a string.");if(void 0!==i&&"string"!==typeof i)throw new TypeError("name, when provided, must be a string.");if(void 0!==r&&"string"!==typeof r)throw new TypeError("description, when provided, must be a string.")}}const We={default:!0,primary:!0,forced:!1,original:!1,commentary:!1,hearingImpaired:!1,visuallyImpaired:!1};class He{constructor(e){this.bytes=e,this.pos=0}seekToByte(e){this.pos=8*e}readBit(){var e;const t=Math.floor(this.pos/8),i=null!=(e=this.bytes[t])?e:0,r=7-(7&this.pos),n=(i&1<>r;return this.pos++,n}readBits(e){if(1===e)return this.readBit();let t=0;for(let i=0;i>i-r-1<0&&this.writeBits(r,t.readBits(r))}readAlignedByte(){var e;if(this.pos%8!==0)throw new Error("Bitstream is not byte-aligned.");const t=this.pos/8,i=null!=(e=this.bytes[t])?e:0;return this.pos+=8,i}skipBits(e){this.pos+=e}getBitsLeft(){return 8*this.bytes.length-this.pos}clone(){const e=new He(this.bytes);return e.pos=this.pos,e}}const Ve=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350],je=[-1,1,2,3,4,5,6,8],Ke=e=>{if(!e||e.byteLength<2)throw new TypeError("AAC description must be at least 2 bytes long.");const t=new He(e),i=Xe(t),{frequencyIndex:r,sampleRate:n}=$e(t),s=t.readBits(4);let a=null;s>=1&&s<=7&&(a=je[s]);let o=i,l=!1,c=n;if(5===i||29===i)l=29===i,c=$e(t).sampleRate,o=Xe(t),22===o&&t.skipBits(4);else for(;t.getBitsLeft()>15;){const e=t.pos;if(695===t.readBits(11)){5===Xe(t)&&t.readBits(1)&&(c=$e(t).sampleRate,t.getBitsLeft()>11&&1352===t.readBits(11)&&(l=!!t.readBits(1)));break}t.pos=e+1}return null!==a&&a>1&&(l=!1),{objectType:i,coreObjectType:o,frequencyIndex:r,channelConfiguration:s,outputSampleRate:c,outputNumberOfChannels:l&&1===a?2:a}},Xe=e=>{const t=e.readBits(5);return 31===t?32+e.readBits(6):t},$e=e=>{const t=e.readBits(4);return 15===t?{frequencyIndex:t,sampleRate:e.readBits(24)}:{frequencyIndex:t,sampleRate:t=e.length-2)break;t=r;let n=0;t+3i&&(yield{offset:i,length:t-i}),i=t+n,t=i):t++}-1!==i&&i{if(t.description){const i=3&B(t.description)[4];return it(e,i+1)}return tt(e)},nt=e=>31&e,st=e=>{const t=[],i=e.length;for(let r=0;r{const t=e.reduce((e,t)=>e+at.byteLength+t.byteLength,0),i=new Uint8Array(t);let r=0;for(const n of e)i.set(at,r),r+=at.byteLength,i.set(n,r),r+=n.byteLength;return i},lt=(e,t)=>{const i=e.reduce((e,i)=>e+t+i.byteLength,0),r=new Uint8Array(i);let n=0;for(const s of e){const e=new DataView(r.buffer,r.byteOffset,r.byteLength);switch(t){case 1:e.setUint8(n,s.byteLength);break;case 2:e.setUint16(n,s.byteLength,!1);break;case 3:ee(e,n,s.byteLength);break;case 4:e.setUint32(n,s.byteLength,!1)}n+=t,r.set(s,n),n+=s.byteLength}return r},ct=e=>{try{const t=[],i=[],r=[];for(const o of tt(e)){const n=e.subarray(o.offset,o.offset+o.length),s=nt(n[0]);s===Ye.SPS?t.push(n):s===Ye.PPS?i.push(n):s===Ye.SPS_EXT&&r.push(n)}if(0===t.length)return null;if(0===i.length)return null;const n=t[0],s=ft(n);S(null!==s);const a=100===s.profileIdc||110===s.profileIdc||122===s.profileIdc||144===s.profileIdc;return{configurationVersion:1,avcProfileIndication:s.profileIdc,profileCompatibility:s.constraintFlags,avcLevelIndication:s.levelIdc,lengthSizeMinusOne:3,sequenceParameterSets:t,pictureParameterSets:i,chromaFormat:a?s.chromaFormatIdc:null,bitDepthLumaMinus8:a?s.bitDepthLumaMinus8:null,bitDepthChromaMinus8:a?s.bitDepthChromaMinus8:null,sequenceParameterSetExt:a?r:null}}catch(t){return ze._error("Error building AVC Decoder Configuration Record:",t),null}},ut=e=>{const t=[];t.push(e.configurationVersion),t.push(e.avcProfileIndication),t.push(e.profileCompatibility),t.push(e.avcLevelIndication),t.push(252|3&e.lengthSizeMinusOne),t.push(224|31&e.sequenceParameterSets.length);for(const i of e.sequenceParameterSets){const e=i.byteLength;t.push(e>>8),t.push(255&e);for(let r=0;r>8),t.push(255&e);for(let r=0;r>8),t.push(255&e);for(let r=0;r{try{const t=E(e);let i=0;const r=t.getUint8(i++),n=t.getUint8(i++),s=t.getUint8(i++),a=t.getUint8(i++),o=3&t.getUint8(i++),l=31&t.getUint8(i++),c=[];for(let f=0;f{var t;try{const i=st(e),r=new He(i);r.skipBits(1),r.skipBits(2);if(7!==r.readBits(5))return null;const n=r.readAlignedByte(),s=r.readAlignedByte(),a=r.readAlignedByte();I(r);let o=1,l=0,c=0,u=0;if(100===n||110===n||122===n||244===n||44===n||83===n||86===n||118===n||128===n){o=I(r),3===o&&(u=r.readBits(1)),l=I(r),c=I(r),r.skipBits(1);if(r.readBits(1))for(let e=0;e<(3!==o?8:12);e++){if(r.readBits(1)){const t=e<6?16:64;let i=8,n=8;for(let e=0;ee.level>=a))?t:P(ui),n=Math.min(Math.floor(r.maxDpbMbs/(e*i)),16);B=n,E=n}else B=0,E=0}return S(null!==E),{emulationUnpreventedBytes:i,profileIdc:n,constraintFlags:s,levelIdc:a,frameMbsOnlyFlag:y,chromaFormatIdc:o,bitDepthLumaMinus8:l,bitDepthChromaMinus8:c,codedWidth:m,codedHeight:p,displayWidth:g,displayHeight:k,pixelAspectRatio:x,colourPrimaries:b,matrixCoefficients:v,transferCharacteristics:T,fullRangeFlag:w,numReorderFrames:B,maxDecFrameBuffering:E,vuiParametersFlagBitOffset:F,bitstreamRestrictionFlagBitOffset:_,bitstreamRestrictionFlag:R}}catch(i){return ze._error("Error parsing AVC SPS:",i),null}},mt=e=>{const t=I(e);e.skipBits(4),e.skipBits(4);for(let i=0;i<=t;i++)I(e),I(e),e.skipBits(1);e.skipBits(5),e.skipBits(5),e.skipBits(5),e.skipBits(5)},pt=e=>{S(1!==e.bitstreamRestrictionFlag);const t=new Uint8Array(e.emulationUnpreventedBytes.byteLength+64),i=new He(e.emulationUnpreventedBytes),r=new He(t);null===e.bitstreamRestrictionFlag?(r.copyBits(e.vuiParametersFlagBitOffset,i),r.writeBits(1,1),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0)):(S(null!==e.bitstreamRestrictionFlagBitOffset),r.copyBits(e.bitstreamRestrictionFlagBitOffset,i)),r.writeBits(1,1),r.writeBits(1,1),x(r,2),x(r,1),x(r,16),x(r,16),x(r,e.numReorderFrames),x(r,e.maxDecFrameBuffering),r.writeBits(1,1),r.writeBits((8-r.pos%8)%8,0);const n=r.pos/8;return S(Number.isInteger(n)),(e=>{const t=[];let i=0;for(const r of e)2===i&&r<=3&&(t.push(3),i=0),t.push(r),i=0===r?i+1:0;return new Uint8Array(t)})(t.subarray(0,n))},gt=(e,t)=>{if(t.description){const i=3&B(t.description)[21];return it(e,i+1)}return tt(e)},kt=e=>e>>1&63,yt=e=>{try{const t=new He(st(e));t.skipBits(16),t.readBits(4);const i=t.readBits(3),r=t.readBits(1),{general_profile_space:n,general_tier_flag:s,general_profile_idc:a,general_profile_compatibility_flags:o,general_constraint_indicator_flags:l,general_level_idc:c}=Tt(t,i);I(t);const u=I(t);let d=0;3===u&&(d=t.readBits(1));const h=I(t),f=I(t);let m=h,p=f;if(t.readBits(1)){const e=I(t),i=I(t),r=I(t),n=I(t);let s=1,a=1;const o=0===d?u:0;1===o?(s=2,a=2):2===o&&(s=2,a=1),m-=(e+i)*s,p-=(r+n)*a}const g=I(t),k=I(t);I(t);const y=t.readBits(1);let b=0;for(let e=y?0:i;e<=i;e++)I(t),b=I(t),I(t);I(t),I(t),I(t),I(t),I(t),I(t),t.readBits(1)&&t.readBits(1)&&vt(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),I(t),I(t),t.skipBits(1));const T=I(t);if(St(t,T),t.readBits(1)){const e=I(t);for(let i=0;i{try{const t=[],i=[],r=[],n=[];for(const l of tt(e)){const s=e.subarray(l.offset,l.offset+l.length),a=kt(s[0]);a===Ze.VPS_NUT?t.push(s):a===Ze.SPS_NUT?i.push(s):a===Ze.PPS_NUT?r.push(s):a!==Ze.PREFIX_SEI_NUT&&a!==Ze.SUFFIX_SEI_NUT||n.push(s)}if(0===i.length||0===r.length)return null;const s=yt(i[0]);if(!s)return null;let a=0;if(r.length>0){const e=r[0],t=new He(st(e));t.skipBits(16),I(t),I(t),t.skipBits(1),t.skipBits(1),t.skipBits(3),t.skipBits(1),t.skipBits(1),I(t),I(t),C(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&I(t),C(t),C(t),t.skipBits(1),t.skipBits(1),t.skipBits(1),t.skipBits(1);const i=t.readBits(1),n=t.readBits(1);a=i||n?i&&!n?2:!i&&n?3:0:0}const o=[...t.length?[{arrayCompleteness:1,nalUnitType:Ze.VPS_NUT,nalUnits:t}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:Ze.SPS_NUT,nalUnits:i}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:Ze.PPS_NUT,nalUnits:r}]:[],...n.length?[{arrayCompleteness:1,nalUnitType:kt(n[0][0]),nalUnits:n}]:[]];return{configurationVersion:1,generalProfileSpace:s.generalProfileSpace,generalTierFlag:s.generalTierFlag,generalProfileIdc:s.generalProfileIdc,generalProfileCompatibilityFlags:s.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:s.generalConstraintIndicatorFlags,generalLevelIdc:s.generalLevelIdc,minSpatialSegmentationIdc:s.minSpatialSegmentationIdc,parallelismType:a,chromaFormatIdc:s.chromaFormatIdc,bitDepthLumaMinus8:s.bitDepthLumaMinus8,bitDepthChromaMinus8:s.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:s.spsMaxSubLayersMinus1+1,temporalIdNested:s.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:o}}catch(t){return ze._error("Error building HEVC Decoder Configuration Record:",t),null}},Tt=(e,t)=>{const i=e.readBits(2),r=e.readBits(1),n=e.readBits(5);let s=0;for(let u=0;u<32;u++)s=s<<1|e.readBits(1);const a=new Uint8Array(6);for(let u=0;u<6;u++)a[u]=e.readBits(8);const o=e.readBits(8),l=[],c=[];for(let u=0;u0)for(let u=t;u<8;u++)e.skipBits(2);for(let u=0;u{for(let t=0;t<4;t++)for(let i=0;i<(3===t?2:6);i++){if(e.readBits(1)){const i=Math.min(64,1<<4+(t<<1));t>1&&C(e);for(let t=0;t{const i=[];for(let r=0;r{var n;let s=0,a=0,o=0;if(0!==t&&(a=e.readBits(1)),a){if(t===i){o=t-(I(e)+1)}else o=t-1;e.readBits(1),I(e);const a=null!=(n=r[o])?n:0;for(let t=0;t<=a;t++){e.readBits(1)||e.readBits(1)}s=r[o]}else{const t=I(e),i=I(e);for(let r=0;r{let i=2,r=2,n=2,s=0,a=0,o={num:1,den:1};if(e.readBits(1)){const t=e.readBits(8);if(255===t)o={num:e.readBits(16),den:e.readBits(16)};else{const e=ht[t];e&&(o=e)}}return e.readBits(1)&&e.readBits(1),e.readBits(1)&&(e.readBits(3),s=e.readBits(1),e.readBits(1)&&(i=e.readBits(8),r=e.readBits(8),n=e.readBits(8))),e.readBits(1)&&(I(e),I(e)),e.readBits(1),e.readBits(1),e.readBits(1),e.readBits(1)&&(I(e),I(e),I(e),I(e)),e.readBits(1)&&(e.readBits(32),e.readBits(32),e.readBits(1)&&I(e),e.readBits(1)&&It(e,!0,t)),e.readBits(1)&&(e.readBits(1),e.readBits(1),e.readBits(1),a=I(e),I(e),I(e),I(e),I(e)),{pixelAspectRatio:o,colourPrimaries:i,transferCharacteristics:r,matrixCoefficients:n,fullRangeFlag:s,minSpatialSegmentationIdc:a}},It=(e,t,i)=>{let r=!1,n=!1,s=!1;r=1===e.readBits(1),n=1===e.readBits(1),(r||n)&&(s=1===e.readBits(1),s&&(e.readBits(8),e.readBits(5),e.readBits(1),e.readBits(5)),e.readBits(4),e.readBits(4),s&&e.readBits(4),e.readBits(5),e.readBits(5),e.readBits(5));for(let a=0;a<=i;a++){let t=!0;1===e.readBits(1)||(t=1===e.readBits(1));let i=!1;t?I(e):i=1===e.readBits(1);let a=1;if(!i){a=I(e)+1}r&&xt(e,a,s),n&&xt(e,a,s)}},xt=(e,t,i)=>{for(let r=0;r{const i=new Set;let r=Ct.audAllowed;for(const s of gt(e,t)){if(r===Ct.noMoreDataAllowed){i.add(s.offset);continue}const t=kt(e[s.offset]);if(r===Ct.eoBitstreamAllowed&&37!==t){i.add(s.offset);continue}let n=!1;35===t?r>Ct.audAllowed?n=!0:r=Ct.beforeFirstVcl:t<=31?r>Ct.afterFirstVcl?n=!0:r=Ct.afterFirstVcl:36===t?r!==Ct.afterFirstVcl?n=!0:r=Ct.eoBitstreamAllowed:37===t?r=41&&t<=44||t>=48&&t<=55?r>Ct.beforeFirstVcl?n=!0:r=Ct.beforeFirstVcl:(38===t||40===t||t>=45&&t<=47||t>=56&&t<=63)&&r{if(t.description){const i=3&B(t.description)[21];return lt(e,i+1)}return ot(e)})(n,t)},_t={1:{colourPrimaries:5,transferCharacteristics:6,matrixCoefficients:5},2:{colourPrimaries:1,transferCharacteristics:1,matrixCoefficients:1},3:{colourPrimaries:6,transferCharacteristics:6,matrixCoefficients:6},4:{colourPrimaries:7,transferCharacteristics:7,matrixCoefficients:7},5:{colourPrimaries:9,transferCharacteristics:14,matrixCoefficients:9},7:{colourPrimaries:1,transferCharacteristics:13,matrixCoefficients:0}},Rt=e=>{var t,i,r;const n=new He(e);if(2!==n.readBits(2))return null;const s=n.readBits(1),a=(n.readBits(1)<<1)+s;3===a&&n.skipBits(1);if(1===n.readBits(1))return null;if(0!==n.readBits(1))return null;n.skipBits(2);if(4817730!==n.readBits(24))return null;let o=8;if(a>=2){o=n.readBits(1)?12:10}const l=n.readBits(3);let c=0,u=0;if(7!==l){if(u=n.readBits(1),1===a||3===a){const e=n.readBits(1),t=n.readBits(1);c=e||t?e&&!t?2:1:3,n.skipBits(1)}else c=1}else c=3,u=1;const d=(n.readBits(16)+1)*(n.readBits(16)+1);let h=P(di).level;for(const m of di)if(d<=m.maxPictureSize){h=m.level;break}const f=_t[l];return{profile:a,level:h,bitDepth:o,chromaSubsampling:c,videoFullRangeFlag:u,colourPrimaries:null!=(t=null==f?void 0:f.colourPrimaries)?t:2,transferCharacteristics:null!=(i=null==f?void 0:f.transferCharacteristics)?i:2,matrixCoefficients:null!=(r=null==f?void 0:f.matrixCoefficients)?r:2}},Ft=function*(e){const t=new He(e),i=()=>{let e=0;for(let i=0;i<8;i++){const r=t.readAlignedByte();if(e+=(127&r)*c(2,7*i),!(128&r))break;if(7===i&&128&r)return null}return e>c(2,32)-1?null:e};for(;t.getBitsLeft()>=8;){t.skipBits(1);const r=t.readBits(4),n=t.readBits(1),s=t.readBits(1);let a;if(t.skipBits(1),n&&t.skipBits(8),s){const e=i();if(null===e)return;a=e}else a=Math.floor(t.getBitsLeft()/8);S(t.pos%8===0),yield{type:r,data:e.subarray(t.pos/8,t.pos/8+a)},t.skipBits(8*a)}},At=e=>{for(const{type:t,data:i}of Ft(e)){if(1!==t)continue;const e=new He(i),r=e.readBits(3);e.readBits(1);const n=e.readBits(1);let s=0,a=0,o=0;if(n)s=e.readBits(5);else{let t=0;if(e.readBits(1)){e.skipBits(32),e.skipBits(32);if(e.readBits(1)){let t=0;for(;t<32&&!e.readBits(1);)t++;t<32&&e.skipBits(t)}t=e.readBits(1),t&&(o=e.readBits(5),e.skipBits(32),e.skipBits(5),e.skipBits(5))}const i=e.readBits(1),r=e.readBits(5);for(let n=0;n<=r;n++){e.skipBits(12);const r=e.readBits(5);if(0===n&&(s=r),r>7){const t=e.readBits(1);0===n&&(a=t)}if(t){if(e.readBits(1)){const t=o+1;e.skipBits(t),e.skipBits(t),e.skipBits(1)}}if(i){e.readBits(1)&&e.skipBits(4)}}}const l=e.readBits(4),c=e.readBits(4),u=l+1;e.skipBits(u);const d=c+1;e.skipBits(d);let h=0;if(h=n?0:e.readBits(1),h&&(e.skipBits(4),e.skipBits(3)),e.skipBits(1),e.skipBits(1),e.skipBits(1),!n){e.skipBits(1),e.skipBits(1),e.skipBits(1),e.skipBits(1);const t=e.readBits(1);t&&(e.skipBits(1),e.skipBits(1));let i=0;if(i=e.readBits(1)?2:e.readBits(1),i>0){e.readBits(1)||e.skipBits(1)}t&&e.skipBits(3)}e.skipBits(1),e.skipBits(1),e.skipBits(1);const f=e.readBits(1);let m=8;if(2===r&&f){m=e.readBits(1)?12:10}else r<=2&&(m=f?10:8);let p=0;1!==r&&(p=e.readBits(1));let g=2,k=2,y=2;e.readBits(1)&&(g=e.readBits(8),k=e.readBits(8),y=e.readBits(8));let b=0,T=1,v=1,S=0;return p?b=e.readBits(1):1===g&&13===k&&0===y?(b=1,T=0,v=0):(b=e.readBits(1),0===r?(T=1,v=1):1===r?(T=0,v=0):12===m?(T=e.readBits(1),v=T?e.readBits(1):0):(T=1,v=0),T&&v&&(S=e.readBits(2))),{profile:r,level:s,tier:a,bitDepth:m,monochrome:p,chromaSubsamplingX:T,chromaSubsamplingY:v,chromaSamplePosition:S,videoFullRangeFlag:b,colourPrimaries:g,transferCharacteristics:k,matrixCoefficients:y}}return null},Dt=e=>{if(e.length<36)return null;const t=E(e);if(1768124518!==t.getUint32(4))return null;return t.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:t.getUint8(22),transferCharacteristics:t.getUint8(23),matrixCoefficients:t.getUint8(24)}},Mt=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],Nt=e=>{if(e.length<7)throw new Error("Setup header is too short.");if(5!==e[0])throw new Error("Wrong packet type in Setup header.");if("vorbis"!==String.fromCharCode(...e.slice(1,7)))throw new Error("Invalid packet signature in Setup header.");const t=e.length,i=new Uint8Array(t);for(let u=0;u97;)if(1===r.readBits(1)){n=r.pos;break}if(0===n)throw new Error("Invalid Setup header: framing bit not found.");let s=0,a=!1,o=0;for(;r.getBitsLeft()>=97;){const e=r.pos,t=r.readBits(8),i=r.readBits(16),n=r.readBits(16);if(t>63||0!==i||0!==n){r.pos=e;break}if(r.skipBits(1),s++,s>64)break;r.clone().readBits(6)+1===s&&(a=!0,o=s)}if(!a)throw new Error("Invalid Setup header: mode header not found.");if(o>63)throw new Error(`Unsupported mode count: ${o}.`);const l=o;r.pos=0,r.skipBits(n);const c=Array(l).fill(0);for(let u=l-1;u>=0;u--)r.skipBits(40),c[u]=r.readBits(1);return{modeBlockflags:c}},Ot=(e,t,i)=>{switch(e){case"avc":for(const e of rt(i,t)){const t=i[e.offset],r=nt(t);if(r>=Ye.NON_IDR_SLICE&&r<=Ye.SLICE_DPC)return"delta";if(r===Ye.IDR)return"key";if(r===Ye.SEI&&!ve()){const t=i.subarray(e.offset,e.offset+e.length),r=st(t);let n=1;do{let e=0;for(;;){const t=r[n++];if(void 0===t)break;if(e+=t,t<255)break}let t=0;for(;;){const e=r[n++];if(void 0===e)break;if(t+=e,e<255)break}if(e===6){const e=new He(r);e.pos=8*n;const t=I(e),i=e.readBits(1);if(0===t&&1===i)return"key"}n+=t}while(n{var i,r;const n=E(e);let s=0;const a=n.getUint32(s,!0);s+=4;const o=_.decode(e.subarray(s,s+a));s+=a,a>0&&(null!=t.raw||(t.raw={}),null!=(i=t.raw).vendor||(i.vendor=o));const l=n.getUint32(s,!0);s+=4;for(let c=0;c0&&(null!=t.trackNumber||(t.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=t.tracksTotal||(t.tracksTotal=r))}break;case"TRACKTOTAL":{const e=Number.parseInt(c,10);Number.isInteger(e)&&e>0&&(null!=t.tracksTotal||(t.tracksTotal=e))}break;case"DISCNUMBER":{const e=c.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=t.discNumber||(t.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=t.discsTotal||(t.discsTotal=r))}break;case"DISCTOTAL":{const e=Number.parseInt(c,10);Number.isInteger(e)&&e>0&&(null!=t.discsTotal||(t.discsTotal=e))}break;case"DATE":{const e=new Date(c);Number.isNaN(e.getTime())||null!=t.date||(t.date=e)}break;case"GENRE":null!=t.genre||(t.genre=c);break;case"METADATA_BLOCK_PICTURE":{const e=Ce(c),i=E(e),r=i.getUint32(0,!1),n=i.getUint32(4,!1),s=String.fromCharCode(...e.subarray(8,8+n)),a=i.getUint32(8+n,!1),o=_.decode(e.subarray(12+n,12+n+a)),l=i.getUint32(n+a+28),u=e.subarray(n+a+32,n+a+32+l);null!=t.images||(t.images=[]),t.images.push({data:u,mimeType:s,kind:3===r?"coverFront":4===r?"coverBack":"unknown",name:void 0,description:o||void 0})}}}},qt=[2,1,2,3,3,4,4,5],Wt=e=>{if(e.length<7)return null;if(11!==e[0]||119!==e[1])return null;const t=new He(e);t.skipBits(16),t.skipBits(16);const i=t.readBits(2);if(3===i)return null;const r=t.readBits(6),n=t.readBits(5);if(n>8)return null;const s=t.readBits(3),a=t.readBits(3);0!==(1&a)&&1!==a&&t.skipBits(2),0!==(4&a)&&t.skipBits(2),2===a&&t.skipBits(2);return{fscod:i,bsid:n,bsmod:s,acmod:a,lfeon:t.readBits(1),bitRateCode:Math.floor(r/2)}},Ht=[128,138,192,128,140,192,160,174,240,160,176,240,192,208,288,192,210,288,224,242,336,224,244,336,256,278,384,256,280,384,320,348,480,320,350,480,384,416,576,384,418,576,448,486,672,448,488,672,512,556,768,512,558,768,640,696,960,640,698,960,768,834,1152,768,836,1152,896,974,1344,896,976,1344,1024,1114,1536,1024,1116,1536,1280,1392,1920,1280,1394,1920,1536,1670,2304,1536,1672,2304,1792,1950,2688,1792,1952,2688,2048,2228,3072,2048,2230,3072,2304,2506,3456,2304,2508,3456,2560,2786,3840,2560,2788,3840],Vt=[1,2,3,6],jt=e=>{if(e.length<6)return null;if(11!==e[0]||119!==e[1])return null;const t=new He(e);t.skipBits(16);const i=t.readBits(2);if(t.skipBits(3),0!==i&&2!==i)return null;const r=t.readBits(11),n=t.readBits(2);let s,a=0;3===n?(a=t.readBits(2),s=3):s=t.readBits(2);const o=t.readBits(3),l=t.readBits(1),c=t.readBits(5);if(c<11||c>16)return null;const u=Vt[s];let d;d=n<3?Ge[n]/1e3:Qe[a]/1e3;return{dataRate:Math.round((r+1)*d/(16*u)),substreams:[{fscod:n,fscod2:a,bsid:c,bsmod:0,acmod:o,lfeon:l,numDepSub:0,chanLoc:0}]}},Kt=e=>{const t=e.substreams[0];return S(t),t.fscod<3?Ge[t.fscod]:null!==t.fscod2&&t.fscod2<3?Qe[t.fscod2]:null},Xt=e=>{const t=e.substreams[0];S(t);let i=qt[t.acmod]+t.lfeon;if(t.numDepSub>0){const e=[2,2,1,1,2,2,2,1,1];for(let r=0;r<9;r++)t.chanLoc&1<<8-r&&(i+=e[r])}return i},$t=[0,8e3,16e3,32e3,0,0,11025,22050,44100,0,0,12e3,24e3,48e3,96e3,192e3],Gt=[32e3,56e3,64e3,96e3,112e3,128e3,192e3,224e3,256e3,32e4,384e3,448e3,512e3,576e3,64e4,768e3,96e4,1024e3,1152e3,128e4,1344e3,1408e3,1411200,1472e3,1536e3,192e4,2048e3,3072e3,384e4,0,0,0],Qt=[16,16,20,20,0,24,24,0],Yt=[1,2,2,2,2,3,3,4,4,5,6,6,6,7,8,8],Jt=[1,2,2,2,2,3,18,19,6,7,518,323,83,519,582,535],Zt=[32e3,44100,48e3,0],ei=[8e3,16e3,32e3,64e3,128e3,22050,44100,88200,176400,352800,12e3,24e3,48e3,96e3,192e3,384e3],ti=[512,1024,2048,4096],ii=e=>{const t=ni(e),i=E(e);let r=t?4*Math.ceil(t.frameSize/4):0,n=null;for(;r+4<=e.length&&1683496997===i.getUint32(r);){const t=si(e.subarray(r));if(!t)break;null!=n||(n=t),r+=t.frameSize}if(t)return{frameSize:n?r:t.frameSize,sampleRate:t.sampleRate,numberOfChannels:t.numberOfChannels,sampleCount:t.sampleCount,channelLayout:t.channelLayout,pcmResolution:t.pcmResolution,bitRate:t.bitRate,core:t,hasExtensions:null!==n};if(!(null==n?void 0:n.asset))return null;const{asset:s}=n;return{frameSize:r,sampleRate:s.sampleRate,numberOfChannels:s.numberOfChannels,sampleCount:s.sampleCount,channelLayout:s.channelLayout,pcmResolution:s.pcmResolution,bitRate:0,core:null,hasExtensions:!0}},ri=e=>{const t=ii(e);return(null==t?void 0:t.core)?t.hasExtensions?"dtsh":"dtsc":null},ni=e=>{if(e.length<18)return null;if(127!==e[0]||254!==e[1]||128!==e[2]||1!==e[3])return null;const t=new He(e);if(t.skipBits(32),t.skipBits(1),31!==t.readBits(5))return null;const i=t.readBits(1),r=t.readBits(7)+1;if(r%8!==0)return null;const n=t.readBits(14)+1;if(n<96)return null;const s=t.readBits(6);if(s>=Yt.length)return null;const a=$t[t.readBits(4)];if(0===a)return null;const o=Gt[t.readBits(5)];if(0!==t.readBits(1))return null;t.skipBits(4),t.skipBits(5);const l=t.readBits(2);if(3===l)return null;t.skipBits(1),i&&t.skipBits(16),t.skipBits(7);const c=Qt[t.readBits(3)];if(0===c)return null;const u=0!==l;return{frameSize:n,sampleRate:a,numberOfChannels:Yt[s]+(u?1:0),sampleCount:32*r,channelLayout:Jt[s]|(u?8:0),amode:s,lfePresent:u,bitRate:o,pcmResolution:c}},si=e=>{if(e.length<10)return null;if(100!==e[0]||88!==e[1]||32!==e[2]||37!==e[3])return null;const t=new He(e);t.skipBits(32),t.skipBits(8);const i=t.readBits(2),r=t.readBits(1),n=8+4*r,s=16+4*r;t.skipBits(n);const a=t.readBits(s)+1,o={frameSize:a,asset:null};if(!t.readBits(1))return o;const l=Zt[t.readBits(2)],c=512*(t.readBits(3)+1);t.readBits(1)&&t.skipBits(36);const u=t.readBits(3)+1,d=t.readBits(3)+1,h=[];for(let k=0;k2&&t.skipBits(1),p>6&&t.skipBits(1),t.readBits(1))){const e=t.readBits(2)+1<<2;g=t.readBits(e)}return 0===l||t.getBitsLeft()<0?o:{frameSize:a,asset:{sampleRate:m,numberOfChannels:p,sampleCount:Math.round(c*m/l),channelLayout:g,pcmResolution:f}}},ai=e=>le(e)+le(44646&e),oi=["avc","hevc","vp9","av1","vp8","prores"],li=["pcm-s16","pcm-s16be","pcm-s24","pcm-s24be","pcm-s32","pcm-s32be","pcm-f32","pcm-f32be","pcm-f64","pcm-f64be","pcm-u8","pcm-s8","ulaw","alaw"],ci=["aac","opus","mp3","vorbis","flac","ac3","eac3","dts",...li],ui=[{maxMacroblocks:99,maxBitrate:64e3,maxDpbMbs:396,level:10},{maxMacroblocks:396,maxBitrate:192e3,maxDpbMbs:900,level:11},{maxMacroblocks:396,maxBitrate:384e3,maxDpbMbs:2376,level:12},{maxMacroblocks:396,maxBitrate:768e3,maxDpbMbs:2376,level:13},{maxMacroblocks:396,maxBitrate:2e6,maxDpbMbs:2376,level:20},{maxMacroblocks:792,maxBitrate:4e6,maxDpbMbs:4752,level:21},{maxMacroblocks:1620,maxBitrate:4e6,maxDpbMbs:8100,level:22},{maxMacroblocks:1620,maxBitrate:1e7,maxDpbMbs:8100,level:30},{maxMacroblocks:3600,maxBitrate:14e6,maxDpbMbs:18e3,level:31},{maxMacroblocks:5120,maxBitrate:2e7,maxDpbMbs:20480,level:32},{maxMacroblocks:8192,maxBitrate:2e7,maxDpbMbs:32768,level:40},{maxMacroblocks:8192,maxBitrate:5e7,maxDpbMbs:32768,level:41},{maxMacroblocks:8704,maxBitrate:5e7,maxDpbMbs:34816,level:42},{maxMacroblocks:22080,maxBitrate:135e6,maxDpbMbs:110400,level:50},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:51},{maxMacroblocks:36864,maxBitrate:24e7,maxDpbMbs:184320,level:52},{maxMacroblocks:139264,maxBitrate:24e7,maxDpbMbs:696320,level:60},{maxMacroblocks:139264,maxBitrate:48e7,maxDpbMbs:696320,level:61},{maxMacroblocks:139264,maxBitrate:8e8,maxDpbMbs:696320,level:62}],di=[{maxPictureSize:36864,maxBitrate:2e5,level:10},{maxPictureSize:73728,maxBitrate:8e5,level:11},{maxPictureSize:122880,maxBitrate:18e5,level:20},{maxPictureSize:245760,maxBitrate:36e5,level:21},{maxPictureSize:552960,maxBitrate:72e5,level:30},{maxPictureSize:983040,maxBitrate:12e6,level:31},{maxPictureSize:2228224,maxBitrate:18e6,level:40},{maxPictureSize:2228224,maxBitrate:3e7,level:41},{maxPictureSize:8912896,maxBitrate:6e7,level:50},{maxPictureSize:8912896,maxBitrate:12e7,level:51},{maxPictureSize:8912896,maxBitrate:18e7,level:52},{maxPictureSize:35651584,maxBitrate:18e7,level:60},{maxPictureSize:35651584,maxBitrate:24e7,level:61},{maxPictureSize:35651584,maxBitrate:48e7,level:62}],hi=".01.01.01.01.00",fi=".0.110.01.01.01.0",mi=["ap4x","ap4h","apch","apcn","apcs","apco"],pi=["dtsc","dtsh","dtsl","dtse"],gi=e=>{const{codec:t,codecDescription:i,colorSpace:r,avcCodecInfo:n,hevcCodecInfo:s,vp9CodecInfo:a,av1CodecInfo:o,proresFormat:l}=e;if("avc"===t){if(S(null!==e.avcType),n){const t=new Uint8Array([n.avcProfileIndication,n.profileCompatibility,n.avcLevelIndication]);return`avc${e.avcType}.${H(t)}`}if(!i||i.byteLength<4)throw new TypeError("AVC decoder description is not provided or is not at least 4 bytes long.");return`avc${e.avcType}.${H(i.subarray(1,4))}`}if("hevc"===t){let e,t,r,n,a,o;if(s)e=s.generalProfileSpace,t=s.generalProfileIdc,r=V(s.generalProfileCompatibilityFlags),n=s.generalTierFlag,a=s.generalLevelIdc,o=[...s.generalConstraintIndicatorFlags];else{if(!i||i.byteLength<23)throw new TypeError("HEVC decoder description is not provided or is not at least 23 bytes long.");const s=E(i),l=s.getUint8(1);e=l>>6&3,t=31&l,r=V(s.getUint32(2)),n=l>>5&1,a=s.getUint8(12),o=[];for(let e=0;e<6;e++)o.push(s.getUint8(6+e))}let l="hev1.";for(l+=["","A","B","C"][e]+t,l+=".",l+=r.toString(16).toUpperCase(),l+=".",l+=0===n?"L":"H",l+=a;o.length>0&&0===o[o.length-1];)o.pop();return o.length>0&&(l+=".",l+=o.map(e=>e.toString(16).toUpperCase()).join(".")),l}if("vp8"===t)return"vp8";if("vp9"===t){if(!a){const t=e.width*e.height;let i=P(di).level;for(const e of di)if(t<=e.maxPictureSize){i=e.level;break}return`vp09.00.${i.toString().padStart(2,"0")}.08`}let t=`vp09.${a.profile.toString().padStart(2,"0")}.${a.level.toString().padStart(2,"0")}.${a.bitDepth.toString().padStart(2,"0")}.${a.chromaSubsampling.toString().padStart(2,"0")}`;return t+=`.${a.colourPrimaries.toString().padStart(2,"0")}.${a.transferCharacteristics.toString().padStart(2,"0")}.${a.matrixCoefficients.toString().padStart(2,"0")}.${a.videoFullRangeFlag.toString().padStart(2,"0")}`,t.endsWith(hi)&&(t=t.slice(0,-15)),t}if("av1"===t){if(!o){const t=e.width*e.height;let i=P(di).level;for(const e of di)if(t<=e.maxPictureSize){i=e.level;break}return`av01.0.${i.toString().padStart(2,"0")}M.08`}const t=o.profile,i=o.level.toString().padStart(2,"0"),n=o.tier?"H":"M",s=o.bitDepth.toString().padStart(2,"0"),a=o.monochrome?"1":"0",l=100*o.chromaSubsamplingX+10*o.chromaSubsamplingY+1*(o.chromaSubsamplingX&&o.chromaSubsamplingY?o.chromaSamplePosition:0),c=(null==r?void 0:r.primaries)?F[r.primaries]:1,u=(null==r?void 0:r.transfer)?D[r.transfer]:1,d=(null==r?void 0:r.matrix)?N[r.matrix]:1,h=(null==r?void 0:r.fullRange)?1:0;let f=`av01.${t}.${i}${n}.${s}`;return f+=`.${a}.${l.toString().padStart(3,"0")}`,f+=`.${c.toString().padStart(2,"0")}`,f+=`.${u.toString().padStart(2,"0")}`,f+=`.${d.toString().padStart(2,"0")}`,f+=`.${h}`,f.endsWith(fi)&&(f=f.slice(0,-17)),f}if("prores"===t)return null!=l?l:"apch";throw null!==t&&J(t),new TypeError(`Unhandled codec '${t}'.`)},ki=e=>{var t,i,r,n,s,a;switch(e.codec){case"avc":{let r=null==(t=e.avcCodecInfo)?void 0:t.sequenceParameterSets[0];if(!r&&e.codecDescription&&(r=null==(i=dt(e.codecDescription))?void 0:i.sequenceParameterSets[0]),r){const e=ft(r);if(e)return{primaries:A[e.colourPrimaries],transfer:M[e.transferCharacteristics],matrix:O[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"hevc":{let t=null==(n=null==(r=e.hevcCodecInfo)?void 0:r.arrays.find(e=>e.nalUnitType===Ze.SPS_NUT))?void 0:n.nalUnits[0];if(!t&&e.codecDescription&&(t=null==(a=null==(s=(e=>{try{const t=E(e);let i=0;const r=t.getUint8(i++),n=t.getUint8(i++),s=n>>6&3,a=n>>5&1,o=31&n,l=t.getUint32(i,!1);i+=4;const c=e.subarray(i,i+6);i+=6;const u=t.getUint8(i++),d=(15&t.getUint8(i++))<<8|t.getUint8(i++),h=3&t.getUint8(i++),f=3&t.getUint8(i++),m=7&t.getUint8(i++),p=7&t.getUint8(i++),g=t.getUint16(i,!1);i+=2;const k=t.getUint8(i++),y=k>>6&3,b=k>>3&7,T=k>>2&1,v=3&k,S=t.getUint8(i++),w=[];for(let P=0;P>7&1,s=63&r,a=t.getUint16(i,!1);i+=2;const o=[];for(let l=0;le.nalUnitType===Ze.SPS_NUT))?void 0:a.nalUnits[0]),t){const e=yt(t);if(e)return{primaries:A[e.colourPrimaries],transfer:M[e.transferCharacteristics],matrix:O[e.matrixCoefficients],fullRange:!!e.fullRangeFlag}}}break;case"vp8":break;case"vp9":if(e.vp9CodecInfo)return{primaries:A[e.vp9CodecInfo.colourPrimaries],transfer:M[e.vp9CodecInfo.transferCharacteristics],matrix:O[e.vp9CodecInfo.matrixCoefficients],fullRange:!!e.vp9CodecInfo.videoFullRangeFlag};break;case"av1":if(e.av1CodecInfo)return{primaries:A[e.av1CodecInfo.colourPrimaries],transfer:M[e.av1CodecInfo.transferCharacteristics],matrix:O[e.av1CodecInfo.matrixCoefficients],fullRange:!!e.av1CodecInfo.videoFullRangeFlag};break;case"prores":if(e.proresCodecInfo)return{primaries:A[e.proresCodecInfo.colourPrimaries],transfer:M[e.proresCodecInfo.transferCharacteristics],matrix:O[e.proresCodecInfo.matrixCoefficients],fullRange:e.proresCodecInfo.fullRange}}return{primaries:void 0,transfer:void 0,matrix:void 0,fullRange:void 0}},yi=e=>{const{codec:t,codecDescription:i,aacCodecInfo:r,dtsFormat:n}=e;if("aac"===t){if(!r)throw new TypeError("AAC codec info must be provided.");if(r.isMpeg2)return"mp4a.67";{let e;if(null!==r.objectType)e=r.objectType;else{e=Ke(i).objectType}return`mp4a.40.${e}`}}if("mp3"===t)return"mp3";if("opus"===t)return"opus";if("vorbis"===t)return"vorbis";if("flac"===t)return"flac";if("ac3"===t)return"ac-3";if("eac3"===t)return"ec-3";if("dts"===t)return null!=n?n:"dtsc";if(t&&li.includes(t))return t;throw new TypeError(`Unhandled codec '${t}'.`)},bi=48e3,Ti=/^pcm-([usf])(\d+)(be)?$/,vi=e=>{if(S(li.includes(e)),"ulaw"===e)return{dataType:"ulaw",sampleSize:1,littleEndian:!0,silentValue:255};if("alaw"===e)return{dataType:"alaw",sampleSize:1,littleEndian:!0,silentValue:213};const t=Ti.exec(e);let i;S(t),i="u"===t[1]?"unsigned":"s"===t[1]?"signed":"float";return{dataType:i,sampleSize:Number(t[2])/8,littleEndian:"be"!==t[3],silentValue:"pcm-u8"===e?c(2,7):0}},Si=e=>e.startsWith("avc1")||e.startsWith("avc3")?"avc":e.startsWith("hev1")||e.startsWith("hvc1")?"hevc":"vp8"===e?"vp8":e.startsWith("vp09")?"vp9":e.startsWith("av01")?"av1":mi.includes(e)?"prores":"mp3"===e||"mp4a.69"===e||"mp4a.6B"===e||"mp4a.6b"===e||"mp4a.40.34"===e?"mp3":e.startsWith("mp4a.40.")||"mp4a.67"===e?"aac":"opus"===e?"opus":"vorbis"===e?"vorbis":"flac"===e?"flac":"ac-3"===e||"ac3"===e?"ac3":"ec-3"===e||"eac3"===e?"eac3":pi.includes(e)?"dts":"ulaw"===e?"ulaw":"alaw"===e?"alaw":Ti.test(e)?e:"webvtt"===e?"webvtt":null,wi=[44100,48e3,32e3],Pi=[-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],Ii=1483304551,xi=1231971951,Ci=(e,t)=>3===e?3===t?21:36:3===t?13:21,Bi=(e,t)=>{const i=e>>>24,r=e>>>16&255,n=e>>>8&255,s=255&e;if(255!==i&&255!==r&&255!==n&&255!==s)return{header:null,bytesAdvanced:4};if(255!==i)return{header:null,bytesAdvanced:1};if(224!==(224&r))return{header:null,bytesAdvanced:1};let a=0,o=0;16&r?a=8&r?0:1:(a=1,o=1);const l=r>>3&3,c=r>>1&3,u=(n>>2&3)%3,d=s>>6&3,h=s>>4&3,f=s>>3&1,m=s>>2&1,p=3&s,g=Pi[16*a*4+16*c+(n>>4&15)];if(-1===g)return{header:null,bytesAdvanced:1};const k=1e3*g,y=wi[u]>>a+o,b=((e,t,i,r,n)=>0===t?0:1===t?Math.floor(144*i/(r<>1&1);if(null!==t&&t{let t=2130706432,i=0;for(;0!==t;)i>>=1,i|=e&t,t>>=8;return i};var _i,Ri;(Ri=_i||(_i={}))[Ri.FrameCount=1]="FrameCount",Ri[Ri.FileSize=2]="FileSize",Ri[Ri.Toc=4]="Toc";const Fi=e=>3===e?1:2;class Ai{constructor(e){this.input=e}dispose(){}}const Di=new Uint8Array(0);class Mi{constructor(e,t,i,r,n=-1,s,a){if(this.data=e,this.type=t,this.timestamp=i,this.duration=r,this.sequenceNumber=n,e===Di&&void 0===s)throw new Error("Internal error: byteLength must be explicitly provided when constructing metadata-only packets.");if(void 0===s&&(s=e.byteLength),!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if("key"!==t&&"delta"!==t)throw new TypeError('type must be either "key" or "delta".');if(!Number.isFinite(i))throw new TypeError("timestamp must be a number.");if(!Number.isFinite(r)||r<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(n))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(s)||s<0)throw new TypeError("byteLength must be a non-negative integer.");if(void 0!==a&&("object"!==typeof a||!a))throw new TypeError("sideData, when provided, must be an object.");if(void 0!==(null==a?void 0:a.alpha)&&!(a.alpha instanceof Uint8Array))throw new TypeError("sideData.alpha, when provided, must be a Uint8Array.");if(void 0!==(null==a?void 0:a.alphaByteLength)&&(!Number.isInteger(a.alphaByteLength)||a.alphaByteLength<0))throw new TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=s,this.sideData=null!=a?a:{},this.sideData.alpha&&void 0===this.sideData.alphaByteLength&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}get isMetadataOnly(){return this.data===Di}get microsecondTimestamp(){return Math.trunc(de*this.timestamp)}get microsecondDuration(){return Math.trunc(de*this.duration)}toEncodedVideoChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}alphaToEncodedVideoChunk(e=this.type){if(!this.sideData.alpha)throw new TypeError("This packet does not contain alpha side data.");if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to a video chunk.");if("undefined"===typeof EncodedVideoChunk)throw new Error("EncodedVideoChunk is not available in this environment.");return new EncodedVideoChunk({data:this.sideData.alpha,type:e,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}toEncodedAudioChunk(){if(this.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be converted to an audio chunk.");if("undefined"===typeof EncodedAudioChunk)throw new Error("EncodedAudioChunk is not available in this environment.");return new EncodedAudioChunk({data:this.data,type:this.type,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration})}static fromEncodedChunk(e,t){var i;if(!(e instanceof EncodedVideoChunk||e instanceof EncodedAudioChunk))throw new TypeError("chunk must be an EncodedVideoChunk or EncodedAudioChunk.");const r=new Uint8Array(e.byteLength);return e.copyTo(r),new Mi(r,e.type,e.timestamp/1e6,(null!=(i=e.duration)?i:0)/1e6,void 0,void 0,t)}clone(e){var t,i,r,n,s,a;if(void 0!==e&&("object"!==typeof e||null===e))throw new TypeError("options, when provided, must be an object.");if(void 0!==(null==e?void 0:e.data)&&!(e.data instanceof Uint8Array))throw new TypeError("options.data, when provided, must be a Uint8Array.");if(void 0!==(null==e?void 0:e.type)&&"key"!==e.type&&"delta"!==e.type)throw new TypeError('options.type, when provided, must be either "key" or "delta".');if(void 0!==(null==e?void 0:e.timestamp)&&!Number.isFinite(e.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(void 0!==(null==e?void 0:e.duration)&&!Number.isFinite(e.duration))throw new TypeError("options.duration, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sequenceNumber)&&!Number.isFinite(e.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(void 0!==(null==e?void 0:e.sideData)&&("object"!==typeof e.sideData||null===e.sideData))throw new TypeError("options.sideData, when provided, must be an object.");return new Mi(null!=(t=null==e?void 0:e.data)?t:this.data,null!=(i=null==e?void 0:e.type)?i:this.type,null!=(r=null==e?void 0:e.timestamp)?r:this.timestamp,null!=(n=null==e?void 0:e.duration)?n:this.duration,null!=(s=null==e?void 0:e.sequenceNumber)?s:this.sequenceNumber,this.byteLength,null!=(a=null==e?void 0:e.sideData)?a:this.sideData)}}const Ni=e=>{const t=E(e);let i=0;const r=t.getUint8(i);i+=1,i+=3;const n=H(e.subarray(i,i+16));i+=16;let s=null;if(r>0){const r=t.getUint32(i);if(i+=4,r>0){s=[];for(let t=0;te.systemId===t.systemId&&((e,t)=>{if(e.length!==t.length)return!1;for(let i=0;i{let t=Wo(e);const i=Yo(e,4);let r=8;1===t&&(t=Ko(e),r=16);const n=t-r;return n<0?null:{name:i,totalSize:t,headerSize:r,contentSize:n}},zi=e=>Vo(e)/65536,Ui=e=>Vo(e)/1073741824,qi=e=>{let t=0;for(let i=0;i<4;i++){t<<=7;const i=No(e);if(t|=127&i,0===(128&i))break}return t},Wi=e=>{let t=Lo(e);return e.skip(2),t=Math.min(t,e.remainingLength),_.decode(Mo(e,t))},Hi=e=>{const t=Li(e);if(!t||"data"!==t.name)return null;if(e.remainingLength<8)return null;const i=Wo(e);e.skip(4);const r=Mo(e,t.contentSize-8);switch(i){case 1:return _.decode(r);case 2:return new TextDecoder("utf-16be").decode(r);case 13:return new Ue(r,"image/jpeg");case 14:return new Ue(r,"image/png");case 27:return new Ue(r,"image/bmp");default:return r}},Vi=16,ji=new Uint32Array(256),Ki=new Uint32Array(256),Xi=new Uint32Array(256),$i=new Uint32Array(256),Gi=new Uint32Array(256),Qi=new Uint32Array(256),Yi=new Uint32Array(10);let Ji=!1;class Zi{constructor(){this.roundkey=new Uint32Array(44),this.iv=new Uint32Array(Vi/Uint32Array.BYTES_PER_ELEMENT),this.in=new Uint8Array(Vi),this.out=new Uint8Array(Vi),this.inView=new DataView(this.in.buffer),this.outView=new DataView(this.out.buffer)}init({key:e,iv:t}){S(16===e.byteLength),S(16===t.byteLength),Ji||(()=>{const e=new Uint8Array(256),t=new Uint8Array(256),i=new Uint8Array(256);for(let s=0,a=1;s<256;s++)i[s]=a,t[a]=s,a=a^a<<1^(128&a?283:0);const r=(e,r)=>e&&r?i[(t[e]+t[r])%255]:0;e[0]=99;for(let s=1;s<256;s++){const r=i[255-t[s]];let n=r^r<<1^r<<2^r<<3^r<<4;n=n>>>8^255&n^99,e[s]=n}for(let s=0;s<256;s++){const t=e[s],i=e.indexOf(s);ji[s]=t<<24|t<<16|t<<8|t,Qi[s]=i<<24|i<<16|i<<8|i;const n=r(i,14)<<24|r(i,9)<<16|r(i,13)<<8|r(i,11);Ki[s]=n,Xi[s]=n>>>8|n<<24,$i[s]=n>>>16|n<<16,Gi[s]=n>>>24|n<<8}let n=1;for(let s=0;s<10;s++)Yi[s]=n<<24,n=n<<1^(128&n?283:0);Ji=!0})();const i=new DataView(e.buffer,e.byteOffset,e.byteLength),r=new DataView(t.buffer,t.byteOffset,t.byteLength);this.roundkey[0]=i.getUint32(0,!1),this.roundkey[1]=i.getUint32(4,!1),this.roundkey[2]=i.getUint32(8,!1),this.roundkey[3]=i.getUint32(12,!1),this.iv[0]=r.getUint32(0,!1),this.iv[1]=r.getUint32(4,!1),this.iv[2]=r.getUint32(8,!1),this.iv[3]=r.getUint32(12,!1);for(let n=4;n<44;n+=4){const e=this.roundkey[n-1];this.roundkey[n]=this.roundkey[n-4]^4278190080&ji[e>>>16&255]^16711680&ji[e>>>8&255]^65280&ji[e>>>0&255]^255&ji[e>>>24&255]^Yi[n/4-1],this.roundkey[n+1]=this.roundkey[n-3]^this.roundkey[n],this.roundkey[n+2]=this.roundkey[n-2]^this.roundkey[n+1],this.roundkey[n+3]=this.roundkey[n-1]^this.roundkey[n+2]}for(let n=0,s=40;n>>24&255]]^Xi[255&ji[t>>>16&255]]^$i[255&ji[t>>>8&255]]^Gi[255&ji[t>>>0&255]]}}decrypt(){let e=this.inView.getUint32(0,!1)^this.roundkey[0],t=this.inView.getUint32(4,!1)^this.roundkey[1],i=this.inView.getUint32(8,!1)^this.roundkey[2],r=this.inView.getUint32(12,!1)^this.roundkey[3];const n=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),a=this.inView.getUint32(8,!1),o=this.inView.getUint32(12,!1);let l,c,u,d;for(let g=1;g<10;g++){const n=4*g;l=Ki[e>>>24]^Xi[r>>>16&255]^$i[i>>>8&255]^Gi[255&t]^this.roundkey[n],c=Ki[t>>>24]^Xi[e>>>16&255]^$i[r>>>8&255]^Gi[255&i]^this.roundkey[n+1],u=Ki[i>>>24]^Xi[t>>>16&255]^$i[e>>>8&255]^Gi[255&r]^this.roundkey[n+2],d=Ki[r>>>24]^Xi[i>>>16&255]^$i[t>>>8&255]^Gi[255&e]^this.roundkey[n+3],e=l,t=c,i=u,r=d}const h=4278190080&Qi[e>>>24&255]^16711680&Qi[r>>>16&255]^65280&Qi[i>>>8&255]^255&Qi[t>>>0&255]^this.roundkey[40],f=4278190080&Qi[t>>>24&255]^16711680&Qi[e>>>16&255]^65280&Qi[r>>>8&255]^255&Qi[i>>>0&255]^this.roundkey[41],m=4278190080&Qi[i>>>24&255]^16711680&Qi[t>>>16&255]^65280&Qi[e>>>8&255]^255&Qi[r>>>0&255]^this.roundkey[42],p=4278190080&Qi[r>>>24&255]^16711680&Qi[i>>>16&255]^65280&Qi[t>>>8&255]^255&Qi[e>>>0&255]^this.roundkey[43];this.outView.setUint32(0,h^this.iv[0],!1),this.outView.setUint32(4,f^this.iv[1],!1),this.outView.setUint32(8,m^this.iv[2],!1),this.outView.setUint32(12,p^this.iv[3],!1),this.iv[0]=n,this.iv[1]=s,this.iv[2]=a,this.iv[3]=o}}class er extends Ai{constructor(e){super(e),this.moovSlice=null,this.currentTrack=null,this.tracks=[],this.metadataPromise=null,this.movieTimescale=-1,this.movieDurationInTimescale=-1,this.isQuickTime=!1,this.metadataTags={},this.currentMetadataKeys=null,this.isFragmented=!1,this.fragmentTrackDefaults=[],this.psshBoxes=[],this.currentFragment=null,this.lastReadFragment=null,this.decryptionKeyCache=new Map,this.reader=e._reader}getTrackBackings(){return p(this,null,function*(){return yield this.readMetadata(),this.tracks.map(e=>e.trackBacking)})}getMimeType(){return p(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isQuickTime?"quicktime":"mp4");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)}),hasAudio:this.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)}),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return p(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>p(this,null,function*(){let e=0,t=!1,i=!1;for(;;){let r=this.reader.requestSliceRange(e,8,16);if(Pe(r)&&(r=yield r),!r)break;const n=e,s=Li(r);if(!s)break;if("ftyp"===s.name||"styp"===s.name){const e=Yo(r,4);this.isQuickTime="qt "===e}else{if("moov"===s.name){let e=this.reader.requestSlice(r.filePos,s.contentSize);if(Pe(e)&&(e=yield e),!e)break;this.moovSlice=e,this.readContiguousBoxes(this.moovSlice);for(const t of this.tracks){const e=t.editListPreviousSegmentDurations/this.movieTimescale;t.editListOffset-=Math.round(e*t.timescale)}t=this.isFragmented&&null!==this.reader.fileSize&&this.reader.fileSize>n+s.totalSize,i=!0;break}if("moof"===s.name){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');yield this.copyMetadataFromInitInput(this.input._initInput),t=!1,i=!0;break}}e=n+s.totalSize}if(!i&&this.input._initInput&&(yield this.copyMetadataFromInitInput(this.input._initInput)),t){S(null!==this.reader.fileSize);let e=this.reader.requestSlice(this.reader.fileSize-4,4);Pe(e)&&(e=yield e),S(e);const t=Wo(e),i=this.reader.fileSize-t;if(i>=0&&i<=this.reader.fileSize-16){let e=this.reader.requestSliceRange(i,8,16);if(Pe(e)&&(e=yield e),e){const t=Li(e);if(t&&"mfra"===t.name){let i=this.reader.requestSlice(e.filePos,t.contentSize);Pe(i)&&(i=yield i),i&&this.readContiguousBoxes(i)}}}}}))()}copyMetadataFromInitInput(e){return p(this,null,function*(){const t=yield e._getDemuxer();if(t.constructor!==er)throw new Error("Init input must match the input's format.");yield t.readMetadata(),this.movieTimescale=t.movieTimescale,this.movieDurationInTimescale=t.movieDurationInTimescale,this.metadataTags=t.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=t.fragmentTrackDefaults,this.psshBoxes=t.psshBoxes;for(const e of t.tracks){const t={id:e.id,demuxer:this,trackBacking:null,disposition:e.disposition,timescale:e.timescale,durationInMediaTimescale:e.durationInMediaTimescale,durationInMovieTimescale:e.durationInMovieTimescale,rotation:e.rotation,internalCodecId:e.internalCodecId,name:e.name,languageCode:e.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:e.editListPreviousSegmentDurations,editListOffset:e.editListOffset,encryptionInfo:e.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,info:e.info};if(e.trackBacking)if(S(t.info),"video"===t.info.type&&-1!==t.info.width){const e=t;t.trackBacking=new ir(e),this.tracks.push(t)}else if("audio"===t.info.type&&-1!==t.info.numberOfChannels){const e=t;t.trackBacking=new rr(e),this.tracks.push(t)}}})}getSampleTableForTrack(e){var t,i;if(e.sampleTable)return e.sampleTable;const r={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=r,null===e.sampleTableByteOffset)return r;S(this.moovSlice);const n=this.moovSlice.slice(e.sampleTableByteOffset);this.currentTrack=e,this.traverseBox(n),this.currentTrack=null;if("audio"===(null==(t=e.info)?void 0:t.type)&&e.info.codec&&li.includes(e.info.codec)&&0===r.sampleCompositionTimeOffsets.length){S("audio"===(null==(i=e.info)?void 0:i.type));const t=vi(e.info.codec),n=[],s=[];for(let i=0;ie.startIndex),u=r.sampleTimingEntries[c],d=K(r.sampleTimingEntries,l,e=>e.startIndex),h=r.sampleTimingEntries[d],f=u.startDecodeTimestamp+(o-u.startIndex)*u.delta,m=h.startDecodeTimestamp+(l-h.startIndex)*h.delta-f,p=P(n);p&&p.delta===m?p.count++:n.push({startIndex:a.startChunkIndex+i,startDecodeTimestamp:f,count:1,delta:m});const g=a.samplesPerChunk*t.sampleSize*e.info.numberOfChannels;s.push(g)}a.startSampleIndex=a.startChunkIndex,a.samplesPerChunk=1}r.sampleTimingEntries=n,r.sampleSizes=s}if(r.sampleCompositionTimeOffsets.length>0){r.presentationTimestamps=[];for(const e of r.sampleTimingEntries)for(let t=0;te.presentationTimestamp-t.presentationTimestamp),r.presentationTimestampIndexMap=Array(r.presentationTimestamps.length).fill(-1);for(let e=0;ee.moofOffset===s.moofOffset);if(r)lr(e,r.timestamp);else{const t=K(i,s.moofOffset-1,e=>e.moofOffset);if(-1!==t){const r=i[t];lr(e,r.endTimestamp)}}e.startTimestampIsFinal=!0}const r=K(i,e.startTimestamp,e=>e.startTimestamp);if(-1!==r&&i[r].moofOffset===s.moofOffset||i.splice(r+1,0,{moofOffset:s.moofOffset,startTimestamp:e.startTimestamp,endTimestamp:e.endTimestamp}),e.encryptionAuxInfo&&t.encryptionInfo){const i=yield hr(this.reader,t.encryptionInfo,e.encryptionAuxInfo);for(let t=0;t0){t.languageCode="";for(let e=0;e<3;e++)t.languageCode=String.fromCharCode(96+(31&r))+t.languageCode,r>>=5;ue(t.languageCode)||(t.languageCode=re)}}break;case"hdlr":{const t=this.currentTrack;if(!t)break;e.skip(8);const i=Yo(e,4);"vide"===i?t.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:d({},z),avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:"soun"===i&&(t.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{const t=this.currentTrack;if(!t)break;t.sampleTableByteOffset=ge,this.readContiguousBoxes(e.slice(ye,ke.contentSize))}break;case"stsd":{const t=this.currentTrack;if(!t)break;if(null===t.info||t.sampleTable)break;const i=No(e);e.skip(3);const r=Wo(e);for(let n=0;n0&&(1===a?(e.skip(4),l=8*Wo(e),e.skip(8)):2===a&&(e.skip(4),c=Qo(e),o=Wo(e),e.skip(4),l=Wo(e),u=Wo(e),e.skip(8))),t.info.numberOfChannels=o,t.info.sampleRate=c,t.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,r+n.totalSize-e.filePos));const d="enca"===s?t.frmaCodecString:s;if(t.frmaCodecString=null,"mp4a"===d);else if("opus"===d)t.info.codec="opus",t.info.sampleRate=bi;else if("flac"===d)t.info.codec="flac";else if("ulaw"===d)t.info.codec="ulaw";else if("alaw"===d)t.info.codec="alaw";else if("ac-3"===d)t.info.codec="ac3";else if("ec-3"===d)t.info.codec="eac3";else if(pi.includes(d))t.info.codec="dts",t.info.dtsFormat=d;else if("twos"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec=t.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(ze._warn(`Unsupported sample size ${l} for codec 'twos'.`),t.info.codec=null);else if("sowt"===d)8===l?t.info.codec="pcm-s8":16===l?t.info.codec="pcm-s16":(ze._warn(`Unsupported sample size ${l} for codec 'sowt'.`),t.info.codec=null);else if("raw "===d)t.info.codec="pcm-u8";else if("in24"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if("in32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if("fl32"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if("fl64"===d)t.info.codec=t.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if("ipcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?16===e?t.info.codec="pcm-s16":24===e?t.info.codec="pcm-s24":32===e?t.info.codec="pcm-s32":(ze._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null):16===e?t.info.codec="pcm-s16be":24===e?t.info.codec="pcm-s24be":32===e?t.info.codec="pcm-s32be":(ze._warn(`Invalid ipcm sample size ${e}.`),t.info.codec=null)}else if("fpcm"===d){const e=t.info.pcmSampleSize;t.info.pcmLittleEndian?32===e?t.info.codec="pcm-f32":64===e?t.info.codec="pcm-f64":(ze._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null):32===e?t.info.codec="pcm-f32be":64===e?t.info.codec="pcm-f64be":(ze._warn(`Invalid fpcm sample size ${e}.`),t.info.codec=null)}else if("lpcm"===d&&null!==u){const e=l+7>>3,i=Boolean(1&u),r=Boolean(2&u),n=4&u?-1:0;l>0&&l<=64&&(i?32===l&&(t.info.codec=r?"pcm-f32be":"pcm-f32"):n&1<0?(t.encryptionInfo.defaultCryptByteBlock=r>>4,t.encryptionInfo.defaultSkipByteBlock=15&r):(t.encryptionInfo.defaultCryptByteBlock=0,t.encryptionInfo.defaultSkipByteBlock=0),t.encryptionInfo.defaultIsProtected=0!==No(e),t.encryptionInfo.defaultPerSampleIvSize=No(e),t.encryptionInfo.defaultKid=H(Mo(e,16)),t.encryptionInfo.defaultIsProtected&&0===t.encryptionInfo.defaultPerSampleIvSize){const i=No(e),r=new Uint8Array(16);r.set(Mo(e,i),0),t.encryptionInfo.defaultConstantIv=r}}break;case"avcC":{const t=this.currentTrack;if(!t)break;if(S(t.info),0===ke.contentSize)break;t.info.codecDescription=Mo(e,ke.contentSize)}break;case"hvcC":{const t=this.currentTrack;if(!t)break;if(S(t.info),0===ke.contentSize)break;t.info.codecDescription=Mo(e,ke.contentSize)}break;case"vpcC":{const i=this.currentTrack;if(!i)break;S("video"===(null==(t=i.info)?void 0:t.type)),e.skip(4);const r=No(e),n=No(e),s=No(e),a=s>>4,o=s>>1&7,l=1&s,c=No(e),u=No(e),d=No(e);i.info.vp9CodecInfo={profile:r,level:n,bitDepth:a,chromaSubsampling:o,videoFullRangeFlag:l,colourPrimaries:c,transferCharacteristics:u,matrixCoefficients:d}}break;case"av1C":{const t=this.currentTrack;if(!t)break;S("video"===(null==(i=t.info)?void 0:i.type)),e.skip(1);const o=No(e),l=o>>5,c=31&o,u=No(e),d=u>>7,h=u>>6&1,f=u>>4&1,m=u>>3&1,p=u>>2&1,g=3&u,k=2===l&&h?u>>5&1?12:10:h?10:8;e.skip(1);const y=Mo(e,ke.contentSize-4),b=At(y);t.info.av1CodecInfo={profile:l,level:c,tier:d,bitDepth:k,monochrome:f,chromaSubsamplingX:m,chromaSubsamplingY:p,chromaSamplePosition:g,videoFullRangeFlag:null!=(r=null==b?void 0:b.videoFullRangeFlag)?r:0,colourPrimaries:null!=(n=null==b?void 0:b.colourPrimaries)?n:2,transferCharacteristics:null!=(s=null==b?void 0:b.transferCharacteristics)?s:2,matrixCoefficients:null!=(a=null==b?void 0:b.matrixCoefficients)?a:2}}break;case"colr":{const t=this.currentTrack;if(!t)break;S("video"===(null==(o=t.info)?void 0:o.type));const i=Yo(e,4);if("nclx"!==i&&"nclc"!==i)break;const r=Lo(e),n=Lo(e),s=Lo(e);let a;"nclx"===i&&(a=Boolean(128&No(e))),t.info.colorSpace={primaries:A[r],transfer:M[n],matrix:O[s],fullRange:a}}break;case"pasp":{const t=this.currentTrack;if(!t)break;S("video"===(null==(l=t.info)?void 0:l.type));const i=Wo(e),r=Wo(e);i>0&&r>0&&(i>r?t.info.squarePixelWidth=Math.round(t.info.width*i/r):t.info.squarePixelHeight=Math.round(t.info.height*r/i))}break;case"esds":{const t=this.currentTrack;if(!t||"audio"!==(null==(c=t.info)?void 0:c.type))break;e.skip(4);S(3===No(e)),qi(e),e.skip(2);const i=No(e),r=0!==(64&i),n=0!==(32&i);if(0!==(128&i)&&e.skip(2),r){const t=No(e);e.skip(t)}n&&e.skip(2);S(4===No(e));const s=qi(e),a=e.filePos,o=No(e);if(64===o||103===o?(t.info.codec="aac",t.info.aacCodecInfo={isMpeg2:103===o,objectType:null}):105===o||107===o?t.info.codec="mp3":221===o?t.info.codec="vorbis":169===o?t.info.codec="dts":ze._warn(`Unsupported audio codec (objectTypeIndication ${o}) - discarding track.`),e.skip(12),s>e.filePos-a){S(5===No(e));const i=qi(e);if(t.info.codecDescription=Mo(e,i),"aac"===t.info.codec){const e=Ke(t.info.codecDescription);null!==e.outputNumberOfChannels&&(t.info.numberOfChannels=e.outputNumberOfChannels),null!==e.outputSampleRate&&(t.info.sampleRate=e.outputSampleRate)}}}break;case"enda":{const t=this.currentTrack;if(!t)break;S("audio"===(null==(u=t.info)?void 0:u.type)),t.info.pcmLittleEndian=!!(255&Lo(e))}break;case"pcmC":{const t=this.currentTrack;if(!t)break;S("audio"===(null==(f=t.info)?void 0:f.type)),e.skip(4);const i=No(e);t.info.pcmLittleEndian=Boolean(1&i),t.info.pcmSampleSize=No(e)}break;case"dOps":{const t=this.currentTrack;if(!t)break;S("audio"===(null==(m=t.info)?void 0:m.type)),e.skip(1);const i=No(e),r=Lo(e),n=Wo(e),s=Uo(e),a=No(e);let o;o=0!==a?Mo(e,2+i):new Uint8Array(0);const l=new Uint8Array(19+o.byteLength),c=new DataView(l.buffer);c.setUint32(0,1332770163,!1),c.setUint32(4,1214603620,!1),c.setUint8(8,1),c.setUint8(9,i),c.setUint16(10,r,!0),c.setUint32(12,n,!0),c.setInt16(16,s,!0),c.setUint8(18,a),l.set(o,19),t.info.codecDescription=l,t.info.numberOfChannels=i}break;case"dfLa":{const t=this.currentTrack;if(!t)break;S("audio"===(null==(p=t.info)?void 0:p.type)),e.skip(4);const i=127,r=128,n=e.filePos;for(;e.filePos>>12,n=1+(i>>9&7);t.info.sampleRate=r,t.info.numberOfChannels=n,e.skip(20)}else e.skip(s);if(n&r)break}const s=e.filePos;e.filePos=n;const a=Mo(e,s-n),o=new Uint8Array(4+a.byteLength);new DataView(o.buffer).setUint32(0,1716281667,!1),o.set(a,4),t.info.codecDescription=o}break;case"dac3":{const t=this.currentTrack;if(!t)break;S("audio"===(null==(g=t.info)?void 0:g.type));const i=Mo(e,3),r=new He(i),n=r.readBits(2);r.skipBits(8);const s=r.readBits(3),a=r.readBits(1);n<3&&(t.info.sampleRate=Ge[n]),t.info.numberOfChannels=qt[s]+a}break;case"dec3":{const t=this.currentTrack;if(!t)break;S("audio"===(null==(k=t.info)?void 0:k.type));const i=(e=>{if(e.length<2)return null;const t=new He(e),i=t.readBits(13),r=t.readBits(3),n=[];for(let s=0;s<=r&&!(Math.ceil(t.pos/8)+3>e.length);s++){const e=t.readBits(2),i=t.readBits(5);t.skipBits(1),t.skipBits(1);const r=t.readBits(3),s=t.readBits(3),a=t.readBits(1);t.skipBits(3);const o=t.readBits(4);let l=0;o>0?l=t.readBits(9):t.skipBits(1),n.push({fscod:e,fscod2:null,bsid:i,bsmod:r,acmod:s,lfeon:a,numDepSub:o,chanLoc:l})}return 0===n.length?null:{dataRate:i,substreams:n}})(Mo(e,ke.contentSize));if(!i){ze._warn("Invalid dec3 box contents, ignoring.");break}const r=Kt(i);null!==r&&(t.info.sampleRate=r),t.info.numberOfChannels=Xt(i)}break;case"ddts":{const t=this.currentTrack;if(!t)break;S("audio"===(null==(y=t.info)?void 0:y.type));const i=(e=>{if(e.length<20)return null;const t=E(e),i=t.getUint32(0);if(0===i)return null;const r=new He(e);r.seekToByte(13);const n=r.readBits(2);r.skipBits(5);const s=r.readBits(1),a=r.readBits(6);r.skipBits(14),r.skipBits(1),r.skipBits(3);const o=r.readBits(16);let l=null;return 0!==o?l=ai(o):ae.id===i);if(!r)break;const n=Wo(e),s=(12&n)>>2,a=3&n,o=[No,Lo,zo,Wo],l=o[(48&n)>>4],c=o[s],u=o[a],d=Wo(e);for(let h=0;he.timestamp-t.timestamp);for(let e=0;e({presentationTimestamp:e.presentationTimestamp,sampleIndex:t})).sort((e,t)=>e.presentationTimestamp-t.presentationTimestamp);for(let n=0;ne.id===c);if(!u)break;const d=this.fragmentTrackDefaults.find(e=>e.trackId===c);this.currentTrack=u,u.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:null!=(T=null==d?void 0:d.defaultSampleDescriptionIndex)?T:null,defaultSampleDuration:null!=(v=null==d?void 0:d.defaultSampleDuration)?v:null,defaultSampleSize:null!=(I=null==d?void 0:d.defaultSampleSize)?I:null,defaultSampleFlags:null!=(x=null==d?void 0:d.defaultSampleFlags)?x:null,startTimestamp:null,encryptionAuxInfo:null},i?u.currentFragmentState.baseDataOffset=Ko(e):l&&(u.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),r&&(u.currentFragmentState.sampleDescriptionIndex=Wo(e)),n&&(u.currentFragmentState.defaultSampleDuration=Wo(e)),s&&(u.currentFragmentState.defaultSampleSize=Wo(e)),a&&(u.currentFragmentState.defaultSampleFlags=Wo(e)),o&&(u.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{const t=this.currentTrack;if(!t)break;S(t.currentFragmentState);const i=No(e);e.skip(3);const r=0===i?Wo(e):Ko(e);t.currentFragmentState.startTimestamp=r}break;case"trun":{const t=this.currentTrack;if(!t)break;S(this.currentFragment),S(t.currentFragmentState);const i=No(e),r=zo(e),n=Boolean(1&r),s=Boolean(4&r),a=Boolean(256&r),o=Boolean(512&r),l=Boolean(1024&r),c=Boolean(2048&r),u=Wo(e);let d=null;n&&(d=Vo(e));let h,f=null;s&&(f=Wo(e)),this.currentFragment.trackData.has(t.id)?(h=this.currentFragment.trackData.get(t.id),null!==d&&(h.currentOffset=t.currentFragmentState.baseDataOffset+d)):(h={track:t,currentTimestamp:0,currentOffset:t.currentFragmentState.baseDataOffset+(null!=d?d:0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(t.id,h));for(let m=0;m0&&(n=Mo(e,r));const s=dr(t);s.defaultSampleInfoSize=i,s.sampleSizes=n,s.sampleCount=r}break;case"saio":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;const i=No(e);if(1&zo(e)){const i=Yo(e,4),r=Wo(e);if(i!==t.encryptionInfo.scheme||0!==r)break}const r=Wo(e);if(0===r)break;r>1&&ze._warn("Multiple saio entries are not supported; using the first offset only.");let n=0===i?Wo(e):Number(Ko(e));this.currentFragment&&(n+=this.currentFragment.moofOffset);dr(t).offset=n}break;case"senc":{const t=this.currentTrack;if(!t||!t.encryptionInfo)break;S(this.currentFragment);const i=this.currentFragment.trackData.get(t.id);if(!i)break;e.skip(1);const r=zo(e),n=Boolean(2&r),s=Wo(e),a=t.encryptionInfo.defaultPerSampleIvSize;S(null!==a);for(let o=0;o0?r.set(Mo(e,a),0):r.set(t.encryptionInfo.defaultConstantIv,0);let s=null;if(n){const t=Lo(e);s=[];for(let i=0;i0&&(null!=(ce=this.metadataTags).trackNumber||(ce.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(de=this.metadataTags).tracksTotal||(de.tracksTotal=i))}break;case"trkn":if(n instanceof Uint8Array&&n.length>=6){const e=E(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(he=this.metadataTags).trackNumber||(he.trackNumber=t)),i>0&&(null!=(fe=this.metadataTags).tracksTotal||(fe.tracksTotal=i))}break;case"disc":case"disk":if(n instanceof Uint8Array&&n.length>=6){const e=E(n),t=e.getUint16(2,!1),i=e.getUint16(4,!1);t>0&&(null!=(me=this.metadataTags).discNumber||(me.discNumber=t)),i>0&&(null!=(pe=this.metadataTags).discsTotal||(pe.discsTotal=i))}}}}}return e.filePos=be,!0}}class tr{constructor(e){this.internalTrack=e,this.packetToSampleIndex=new WeakMap,this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.tracks)if(r.trackBacking.getType()===t&&i++,r===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return p(this,null,function*(){var e;const t=this.internalTrack;if(t.durationInMediaTimescale<=0)return null;S(t.trackBacking);const i=yield t.trackBacking.getFirstPacket({metadataOnly:!0});return(null!=(e=null==i?void 0:i.timestamp)?e:0)+t.durationInMediaTimescale/t.timescale})}getLiveRefreshInterval(){return p(this,null,function*(){return null})}getFirstPacket(e){return p(this,null,function*(){const t=yield this.fetchPacketForSampleIndex(0,e);return t||!this.internalTrack.demuxer.isFragmented?t:this.performFragmentedLookup(null,e=>e.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,e)})}mapTimestampIntoTimescale(e){return ne(e*this.internalTrack.timescale)+this.internalTrack.editListOffset}getPacket(e,t){return p(this,null,function*(){const i=this.mapTimestampIntoTimescale(e),r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),n=nr(r,i),s=yield this.fetchPacketForSampleIndex(n,t);return ur(r)&&this.internalTrack.demuxer.isFragmented?this.performFragmentedLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=K(t.presentationTimestamps,i,e=>e.presentationTimestamp);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id);if(r.sampleIndex+1{const t=e.trackData.get(this.internalTrack.id);if(!t)return{sampleIndex:-1,correctSampleFound:!1};const r=Y(t.presentationTimestamps,e=>t.samples[e.sampleIndex].isKeyFrame&&e.presentationTimestamp<=i);return{sampleIndex:-1!==r?t.presentationTimestamps[r].sampleIndex:-1,correctSampleFound:-1!==r&&i{if(e===r.fragment){const t=e.trackData.get(this.internalTrack.id).samples.findIndex((e,t)=>e.isKeyFrame&&t>r.sampleIndex);if(-1!==t)return{sampleIndex:t,correctSampleFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.samples.findIndex(e=>e.isKeyFrame);return S(-1!==e),{sampleIndex:e,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,t)})}fetchPacketForSampleIndex(e,t){return p(this,null,function*(){if(-1===e)return null;const i=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),r=ar(i,e);if(!r)return null;let n;if(t.metadataOnly)n=Di;else{let t=this.internalTrack.demuxer.reader.requestSlice(r.sampleOffset,r.sampleSize);if(Pe(t)&&(t=yield t),!t)return null;if(n=Mo(t,r.sampleSize),this.internalTrack.encryptionInfo){let t=null;if(this.internalTrack.encryptionAuxInfo){const i=yield hr(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);ee.timestamp),f=-1!==h?this.internalTrack.fragmentLookupTable[h]:null,m=K(this.internalTrack.fragmentPositionCache,i,e=>e.startTimestamp),p=-1!==m?this.internalTrack.fragmentPositionCache[m]:null,g=Math.max(null!=(s=null==f?void 0:f.moofOffset)?s:0,null!=(a=null==p?void 0:p.moofOffset)?a:0)||null;let k;for(e?null===g||e.moofOffset>=g?(k=e.moofOffset+e.moofSize,c=e):k=g:k=null!=g?g:0;;){if(c){const e=c.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=l.reader.requestSliceRange(k,8,16);if(Pe(e)&&(e=yield e),!e)break;const i=k,s=Li(e);if(!s)break;if("moof"===s.name){c=yield l.readFragment(i);const{sampleIndex:e,correctSampleFound:r}=t(c);if(r)return this.fetchPacketInFragment(c,e,n);-1!==e&&(u=c,d=e)}k=i+s.totalSize}if(f&&(!u||u.moofOffsetp(this,null,function*(){var e,t,i,r,n,s,a;if("avc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("hevc"!==this.internalTrack.info.codec||this.internalTrack.info.codecDescription)if("vp9"!==this.internalTrack.info.codec||this.internalTrack.info.vp9CodecInfo&&(2!==(a=this.internalTrack.info.vp9CodecInfo).colourPrimaries||2!==a.transferCharacteristics||2!==a.matrixCoefficients))if("av1"!==this.internalTrack.info.codec||this.internalTrack.info.av1CodecInfo&&(e=>2!==e.colourPrimaries||2!==e.transferCharacteristics||2!==e.matrixCoefficients)(this.internalTrack.info.av1CodecInfo)){if("prores"===this.internalTrack.info.codec&&!this.internalTrack.info.proresCodecInfo){const e=yield this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=e&&Dt(e.data)}}else{const e=yield this.getFirstPacket({}),t=e&&At(e.data);t&&(this.internalTrack.info.av1CodecInfo=t)}else{const t=yield this.getFirstPacket({}),i=t&&Rt(t.data);i&&(this.internalTrack.info.vp9CodecInfo=h(d({},null!=(e=this.internalTrack.info.vp9CodecInfo)?e:i),{videoFullRangeFlag:i.videoFullRangeFlag,colourPrimaries:i.colourPrimaries,transferCharacteristics:i.transferCharacteristics,matrixCoefficients:i.matrixCoefficients}))}else{const e=yield this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=e&&bt(e.data)}else{const e=yield this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=e&&ct(e.data)}if(!L(this.internalTrack.info.colorSpace)){const e=ki(this.internalTrack.info);null!=(t=this.internalTrack.info.colorSpace).primaries||(t.primaries=e.primaries),null!=(i=this.internalTrack.info.colorSpace).transfer||(i.transfer=e.transfer),null!=(r=this.internalTrack.info.colorSpace).matrix||(r.matrix=e.matrix),null!=(n=this.internalTrack.info.colorSpace).fullRange||(n.fullRange=e.fullRange)}const o={codec:gi(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(s=this.internalTrack.info.codecDescription)?s:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class rr extends tr{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return p(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>p(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&ri(e.data)}return{codec:yi(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const nr=(e,t)=>{if(e.presentationTimestamps){const i=K(e.presentationTimestamps,t,e=>e.presentationTimestamp);return-1===i?-1:e.presentationTimestamps[i].sampleIndex}{const i=K(e.sampleTimingEntries,t,e=>e.startDecodeTimestamp);if(-1===i)return-1;const r=e.sampleTimingEntries[i];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},sr=(e,t)=>{var i;if(!e.keySampleIndices)return nr(e,t);if(e.presentationTimestamps){const i=K(e.presentationTimestamps,t,e=>e.presentationTimestamp);if(-1===i)return-1;for(let t=i;t>=0;t--){const i=e.presentationTimestamps[t].sampleIndex;if(-1!==j(e.keySampleIndices,i,e=>e))return i}return-1}{const r=nr(e,t),n=K(e.keySampleIndices,r,e=>e);return null!=(i=e.keySampleIndices[n])?i:-1}},ar=(e,t)=>{const i=K(e.sampleTimingEntries,t,e=>e.startIndex),r=e.sampleTimingEntries[i];if(!r||r.startIndex+r.count<=t)return null;let n=r.startDecodeTimestamp+(t-r.startIndex)*r.delta;const s=K(e.sampleCompositionTimeOffsets,t,e=>e.startIndex),a=e.sampleCompositionTimeOffsets[s];a&&t-a.startIndexe.startSampleIndex),c=e.sampleToChunk[l];S(c);const u=c.startChunkIndex+Math.floor((t-c.startSampleIndex)/c.samplesPerChunk),d=e.chunkOffsets[u],h=c.startSampleIndex+(u-c.startChunkIndex)*c.samplesPerChunk;let f=0,m=d;if(1===e.sampleSizes.length)m+=o*(t-h),f+=o*c.samplesPerChunk;else for(let g=h;ge)}},or=(e,t)=>{var i;if(!e.keySampleIndices)return t+1;const r=K(e.keySampleIndices,t,e=>e);return null!=(i=e.keySampleIndices[r+1])?i:-1},lr=(e,t)=>{e.startTimestamp+=t,e.endTimestamp+=t;for(const i of e.samples)i.presentationTimestamp+=t;for(const i of e.presentationTimestamps)i.presentationTimestamp+=t},cr=e=>{const[t,i]=e,r=Math.atan2(i,t);return Number.isFinite(r)?r*(180/Math.PI):0},ur=e=>0===e.sampleSizes.length,dr=e=>{var t,i,r;return e.currentFragmentState?null!=(i=(t=e.currentFragmentState).encryptionAuxInfo)?i:t.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}:null!=(r=e.encryptionAuxInfo)?r:e.encryptionAuxInfo={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}},hr=(e,t,i)=>p(null,null,function*(){if(i.resolved)return i.resolved;if(null===i.offset||0===i.sampleCount)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let r=0;if(i.defaultSampleInfoSize>0)r=i.defaultSampleInfoSize*i.sampleCount;else{S(i.sampleSizes);for(let e=0;e0?i.defaultSampleInfoSize:i.sampleSizes[e],o=new Uint8Array(16);s>0?o.set(Mo(n,s),0):o.set(t.defaultConstantIv,0);let l=null;if(r>s){const e=Lo(n);l=[];for(let t=0;te.defaultConstantIv?{iv:e.defaultConstantIv,subsamples:null}:null,mr=(e,t,i,r)=>p(null,null,function*(){var n;S(e.encryptionInfo);const s=e.encryptionInfo;S(null!==s.defaultKid);const a=s.defaultKid;let o;const l=e.demuxer.decryptionKeyCache.get(a);if(l)o=yield l;else{if(!(null==(n=e.demuxer.input._formatOptions.isobmff)?void 0:n.resolveKeyId))throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");const t=p(null,null,function*(){let t=e.demuxer.psshBoxes;if(r){t=[...t,...r.psshBoxes].filter(e=>null===e.keyIds||e.keyIds.includes(a));for(let e=0;e{S(e.length%2===0);const t=new Uint8Array(e.length/2);for(let i=0;ip(null,null,function*(){const n=new Uint8Array(16);n.set(i.iv,0);const s=yield crypto.subtle.importKey("raw",e,{name:"AES-CTR"},!1,["decrypt"]),a=e=>p(null,null,function*(){const t=yield crypto.subtle.decrypt({name:"AES-CTR",counter:n,length:64},s,e);return new Uint8Array(t)});if(!i.subsamples)return a(r);S(null!==t.defaultCryptByteBlock&&null!==t.defaultSkipByteBlock);const o=kr(i.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock);let l=0;for(const e of o)for(const t of e.perSubsample)l+=t.length;const c=new Uint8Array(l);let u=0;for(const e of o)for(const t of e.perSubsample)c.set(r.subarray(t.offset,t.offset+t.length),u),u+=t.length;const d=yield a(c),h=new Uint8Array(r);let f=0;for(const e of o)for(const t of e.perSubsample)h.set(d.subarray(f,f+t.length),t.offset),f+=t.length;return h}),gr=(e,t,i,r)=>{const n=new Zi;n.init({key:e,iv:i.iv});const s=t.defaultCryptByteBlock,a=t.defaultSkipByteBlock;if(S(null!==s&&null!==a),!i.subsamples){const e=new Uint8Array(r),t=Math.floor(r.length/16);for(let i=0;i{const r=[],n=0!==t||0!==i;let s=0;for(const a of e){s+=a.clearLen;const e=[];if(n){let r=a.protectedLen,n=s;for(;r>0&&!(r<16*t);){const s=16*t;e.push({offset:n,length:s}),n+=s,r-=s;const a=Math.min(16*i,r);n+=a,r-=a}s+=a.protectedLen}else a.protectedLen>0&&e.push({offset:s,length:a.protectedLen}),s+=a.protectedLen;r.push({perSubsample:e})}return r};var yr,br;(br=yr||(yr={}))[br.EBML=440786851]="EBML",br[br.EBMLVersion=17030]="EBMLVersion",br[br.EBMLReadVersion=17143]="EBMLReadVersion",br[br.EBMLMaxIDLength=17138]="EBMLMaxIDLength",br[br.EBMLMaxSizeLength=17139]="EBMLMaxSizeLength",br[br.DocType=17026]="DocType",br[br.DocTypeVersion=17031]="DocTypeVersion",br[br.DocTypeReadVersion=17029]="DocTypeReadVersion",br[br.Void=236]="Void",br[br.Segment=408125543]="Segment",br[br.SeekHead=290298740]="SeekHead",br[br.Seek=19899]="Seek",br[br.SeekID=21419]="SeekID",br[br.SeekPosition=21420]="SeekPosition",br[br.Duration=17545]="Duration",br[br.Info=357149030]="Info",br[br.TimestampScale=2807729]="TimestampScale",br[br.MuxingApp=19840]="MuxingApp",br[br.WritingApp=22337]="WritingApp",br[br.Tracks=374648427]="Tracks",br[br.TrackEntry=174]="TrackEntry",br[br.TrackNumber=215]="TrackNumber",br[br.TrackUID=29637]="TrackUID",br[br.TrackType=131]="TrackType",br[br.FlagEnabled=185]="FlagEnabled",br[br.FlagDefault=136]="FlagDefault",br[br.FlagForced=21930]="FlagForced",br[br.FlagOriginal=21934]="FlagOriginal",br[br.FlagHearingImpaired=21931]="FlagHearingImpaired",br[br.FlagVisualImpaired=21932]="FlagVisualImpaired",br[br.FlagCommentary=21935]="FlagCommentary",br[br.FlagLacing=156]="FlagLacing",br[br.Name=21358]="Name",br[br.Language=2274716]="Language",br[br.LanguageBCP47=2274717]="LanguageBCP47",br[br.CodecID=134]="CodecID",br[br.CodecPrivate=25506]="CodecPrivate",br[br.CodecDelay=22186]="CodecDelay",br[br.SeekPreRoll=22203]="SeekPreRoll",br[br.DefaultDuration=2352003]="DefaultDuration",br[br.Video=224]="Video",br[br.PixelWidth=176]="PixelWidth",br[br.PixelHeight=186]="PixelHeight",br[br.DisplayWidth=21680]="DisplayWidth",br[br.DisplayHeight=21690]="DisplayHeight",br[br.DisplayUnit=21682]="DisplayUnit",br[br.AlphaMode=21440]="AlphaMode",br[br.Audio=225]="Audio",br[br.SamplingFrequency=181]="SamplingFrequency",br[br.Channels=159]="Channels",br[br.BitDepth=25188]="BitDepth",br[br.SimpleBlock=163]="SimpleBlock",br[br.BlockGroup=160]="BlockGroup",br[br.Block=161]="Block",br[br.BlockAdditions=30113]="BlockAdditions",br[br.BlockMore=166]="BlockMore",br[br.BlockAdditional=165]="BlockAdditional",br[br.BlockAddID=238]="BlockAddID",br[br.BlockDuration=155]="BlockDuration",br[br.ReferenceBlock=251]="ReferenceBlock",br[br.Cluster=524531317]="Cluster",br[br.Timestamp=231]="Timestamp",br[br.Cues=475249515]="Cues",br[br.CuePoint=187]="CuePoint",br[br.CueTime=179]="CueTime",br[br.CueTrackPositions=183]="CueTrackPositions",br[br.CueTrack=247]="CueTrack",br[br.CueClusterPosition=241]="CueClusterPosition",br[br.Colour=21936]="Colour",br[br.MatrixCoefficients=21937]="MatrixCoefficients",br[br.TransferCharacteristics=21946]="TransferCharacteristics",br[br.Primaries=21947]="Primaries",br[br.Range=21945]="Range",br[br.Projection=30320]="Projection",br[br.ProjectionType=30321]="ProjectionType",br[br.ProjectionPoseRoll=30325]="ProjectionPoseRoll",br[br.Attachments=423732329]="Attachments",br[br.AttachedFile=24999]="AttachedFile",br[br.FileDescription=18046]="FileDescription",br[br.FileName=18030]="FileName",br[br.FileMediaType=18016]="FileMediaType",br[br.FileData=18012]="FileData",br[br.FileUID=18094]="FileUID",br[br.Chapters=272869232]="Chapters",br[br.Tags=307544935]="Tags",br[br.Tag=29555]="Tag",br[br.Targets=25536]="Targets",br[br.TargetTypeValue=26826]="TargetTypeValue",br[br.TargetType=25546]="TargetType",br[br.TagTrackUID=25541]="TagTrackUID",br[br.TagEditionUID=25545]="TagEditionUID",br[br.TagChapterUID=25540]="TagChapterUID",br[br.TagAttachmentUID=25542]="TagAttachmentUID",br[br.SimpleTag=26568]="SimpleTag",br[br.TagName=17827]="TagName",br[br.TagLanguage=17530]="TagLanguage",br[br.TagString=17543]="TagString",br[br.TagBinary=17541]="TagBinary",br[br.ContentEncodings=28032]="ContentEncodings",br[br.ContentEncoding=25152]="ContentEncoding",br[br.ContentEncodingOrder=20529]="ContentEncodingOrder",br[br.ContentEncodingScope=20530]="ContentEncodingScope",br[br.ContentCompression=20532]="ContentCompression",br[br.ContentCompAlgo=16980]="ContentCompAlgo",br[br.ContentCompSettings=16981]="ContentCompSettings",br[br.ContentEncryption=20533]="ContentEncryption";const Tr=[yr.EBML,yr.Segment],vr=[yr.SeekHead,yr.Info,yr.Cluster,yr.Tracks,yr.Cues,yr.Attachments,yr.Chapters,yr.Tags],Sr=[...Tr,...vr],wr=16,Pr=e=>{if(e.remainingLength<1)return null;const t=No(e);if(e.skip(-1),0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;return e.remainingLength{if(e.remainingLength<1)return null;const t=No(e);if(0===t)return null;let i=1,r=128;for(;0===(t&r);)i++,r>>=1;if(e.remainingLength{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let i=0;for(let r=0;r{const t=Pr(e);if(null===t)return null;if(e.remainingLength{if(e.remainingLength<1)return null;if(255===No(e))return;e.skip(-1);const t=Ir(e);return null===t?null:72057594037927940!==t?t:void 0},Er=e=>{S(e.remainingLength>=2);const t=Cr(e);if(null===t)return null;const i=Br(e);return null===i?null:{id:t,size:i}},_r=(e,t)=>{const i=Mo(e,t);let r=0;for(;r{const i=Mo(e,t);let r=0;for(;r{if(0===t)return 0;if(4!==t&&8!==t)throw new Error("Bad float size "+t);return 4===t?Go(e):Qo(e)},Ar=(e,t,i,r)=>p(null,null,function*(){const n=new Set(i);let s=t;for(;null===r||ss?r:s,found:!1}}),Dr=(e,t,i,r)=>p(null,null,function*(){const n=c(2,16),s=new Set(i);let a=t;for(;ae.tracks.map(e=>e.trackBacking))})}getMimeType(){return p(this,null,function*(){yield this.readMetadata();const e=yield this.getTrackBackings(),t=yield Promise.all(e.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})));return(e=>{let t=(e.hasVideo?"video/":e.hasAudio?"audio/":"application/")+(e.isWebM?"webm":"x-matroska");e.codecStrings.length>0&&(t+=`; codecs="${[...new Set(e.codecStrings.filter(Boolean))].join(", ")}"`);return t})({isWebM:this.isWebM,hasVideo:this.segments.some(e=>e.tracks.some(e=>{var t;return"video"===(null==(t=e.info)?void 0:t.type)})),hasAudio:this.segments.some(e=>e.tracks.some(e=>{var t;return"audio"===(null==(t=e.info)?void 0:t.type)})),codecStrings:t.filter(Boolean)})})}getMetadataTags(){return p(this,null,function*(){yield this.readMetadata();for(const t of this.segments)t.metadataTagsCollected||(null!==this.reader.fileSize&&(yield this.loadSegmentMetadata(t)),t.metadataTagsCollected=!0);let e={};for(const t of this.segments)e=d(d({},e),t.metadataTags);return e})}readMetadata(){var e;return null!=(e=this.readMetadataPromise)?e:this.readMetadataPromise=(()=>p(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,2,wr);if(Pe(t)&&(t=yield t),!t)break;const i=Er(t);if(!i)break;const r=i.id;let n=i.size;const s=t.filePos;if(r===yr.EBML){Gr(n);let e=this.reader.requestSlice(s,n);if(Pe(e)&&(e=yield e),!e)break;this.readContiguousElements(e)}else if(r===yr.Segment){if(yield this.readSegment(s,n),void 0===n)break;if(null===this.reader.fileSize)break}else if(r===yr.Cluster){if(null===this.reader.fileSize)break;if(void 0===n){n=(yield Ar(this.reader,s,Sr,this.reader.fileSize)).pos-s}const e=P(this.segments);e&&(e.elementEndPos=s+n)}Gr(n),e=s+n}}))()}readSegment(e,t){return p(this,null,function*(){var i;this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:void 0===t?null:e+t,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let r=e;for(;null===this.currentSegment.elementEndPos||re.id===s);if(-1!==l){const e=rn[l].flag;this.currentSegment[e]=!0,Gr(a);let t=this.reader.requestSlice(o,a);Pe(t)&&(t=yield t),t&&this.readContiguousElements(t)}else if(s===yr.Tags||s===yr.Attachments){s===yr.Tags?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,Gr(a);let e=this.reader.requestSlice(o,a);Pe(e)&&(e=yield e),e&&this.readContiguousElements(e)}else if(s===yr.Cluster){this.currentSegment.clusterSeekStartPos=t;break}if(void 0===a)break;r=o+a}if(this.currentSegment.seekEntries.sort((e,t)=>e.segmentPosition-t.segmentPosition),null!==this.reader.fileSize)for(const t of this.currentSegment.seekEntries){const i=rn.find(e=>e.id===t.id);if(!i)continue;if(this.currentSegment[i.flag])continue;let r=this.reader.requestSliceRange(e+t.segmentPosition,2,wr);if(Pe(r)&&(r=yield r),!r)continue;const n=Er(r);if(!n)continue;const{id:s,size:a}=n;if(s!==i.id)continue;Gr(a),this.currentSegment[i.flag]=!0;let o=this.reader.requestSlice(r.filePos,a);Pe(o)&&(o=yield o),o&&this.readContiguousElements(o)}-1===this.currentSegment.timestampScale&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e3);for(const e of this.currentSegment.tracks)null!==e.defaultDurationNs&&(e.defaultDuration=this.currentSegment.timestampFactor*e.defaultDurationNs/1e9);const n=new Map(this.currentSegment.tracks.map(e=>[e.id,e]));for(const e of this.currentSegment.cuePoints){const t=n.get(e.trackId);t&&t.cuePoints.push(e)}for(const e of this.currentSegment.tracks){e.cuePoints.sort((e,t)=>e.time-t.time);for(let t=0;ta&&(a=e.cuePoints.length,s=e);for(const e of this.currentSegment.tracks)0===e.cuePoints.length&&(e.cuePoints=s.cuePoints);this.currentSegment=null})}readCluster(e,t){return p(this,null,function*(){var i;if((null==(i=t.lastReadCluster)?void 0:i.elementStartPos)===e)return t.lastReadCluster;let r=this.reader.requestSliceRange(e,2,wr);Pe(r)&&(r=yield r),S(r);const n=e,s=Er(r);S(s);S(s.id===yr.Cluster);let a=s.size;const o=r.filePos;if(void 0===a){a=(yield Ar(this.reader,o,Sr,t.elementEndPos)).pos-o}let l=this.reader.requestSlice(o,a);Pe(l)&&(l=yield l);const c={segment:t,elementStartPos:n,elementEndPos:o+a,dataStartPos:o,timestamp:-1,trackData:new Map};if(this.currentCluster=c,l){const e=this.readContiguousElements(l,Sr);c.elementEndPos=e}for(const[,e]of c.trackData){const t=e.track;S(e.blocks.length>0);let i=!1;for(let n=0;n({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp);for(let n=0;n({timestamp:e.timestamp,blockIndex:t})).sort((e,t)=>e.timestamp-t.timestamp));const r=e.blocks[e.presentationTimestamps[0].blockIndex],s=e.blocks[P(e.presentationTimestamps).blockIndex];e.startTimestamp=r.timestamp,e.endTimestamp=s.timestamp+s.duration;const a=K(t.clusterPositionCache,e.startTimestamp,e=>e.startTimestamp);-1!==a&&t.clusterPositionCache[a].elementStartPos===n||t.clusterPositionCache.splice(a+1,0,{elementStartPos:c.elementStartPos,startTimestamp:e.startTimestamp})}return t.lastReadCluster=c,c})}getTrackDataInCluster(e,t){let i=e.trackData.get(t);if(!i){const r=e.segment.tracks.find(e=>e.id===t);if(!r)return null;i={track:r,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(t,i)}return i}expandLacedBlocks(e,t){var i;for(let r=0;r=2;){const i=e.filePos;if(!this.traverseElement(e,t))return i}return e.filePos}traverseElement(e,t){var i,r,n,s,a,o,l,c,u,f,m,p,g,k,y,b,T,v,P,I,x,C,B,E,R,F,D,N,L,U,q,W,H,V,j,K,X,$,G,Q,Y,J,Z,ee,te,ie,ne,se,ae,oe,le;const ce=Er(e);if(!ce)return!1;if(t&&t.includes(ce.id))return!1;const{id:de,size:he}=ce,fe=e.filePos;switch(Gr(he),de){case yr.DocType:this.isWebM="webm"===_r(e,he);break;case yr.Seek:{if(!this.currentSegment)break;const t={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(t),this.readContiguousElements(e.slice(fe,he)),-1!==t.id&&-1!==t.segmentPosition||this.currentSegment.seekEntries.pop()}break;case yr.SeekID:{const t=null==(i=this.currentSegment)?void 0:i.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.id=xr(e,he)}break;case yr.SeekPosition:{const t=null==(r=this.currentSegment)?void 0:r.seekEntries[this.currentSegment.seekEntries.length-1];if(!t)break;t.segmentPosition=xr(e,he)}break;case yr.TimestampScale:if(!this.currentSegment)break;this.currentSegment.timestampScale=xr(e,he),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale;break;case yr.Duration:if(!this.currentSegment)break;this.currentSegment.duration=Fr(e,he);break;case yr.TrackEntry:if(!this.currentSegment)break;if(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:h(d({},We),{primary:!1}),trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(fe,he)),!this.currentTrack)break;if(this.currentTrack.decodingInstructions.some(e=>{var t;return"decompress"!==(null==(t=e.data)?void 0:t.type)||e.scope!==Jr.Block||e.data.algorithm!==en.HeaderStripping})&&(ze._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&-1!==this.currentTrack.id&&this.currentTrack.codecId&&this.currentTrack.info){const e=this.currentTrack.codecId.indexOf("/"),t=-1===e?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,e);if("video"===this.currentTrack.info.type&&-1!==this.currentTrack.info.width&&-1!==this.currentTrack.info.height){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,null!==this.currentTrack.info.displayWidth&&null!==this.currentTrack.info.displayHeight){const e=this.currentTrack.info.displayWidth*this.currentTrack.info.height,t=this.currentTrack.info.displayHeight*this.currentTrack.info.width;e>0&&t>0&&(e>t?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*e/t):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*t/e))}if(this.currentTrack.codecId===Mr)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===Nr)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(t===Or)this.currentTrack.info.codec="vp8";else if(t===Lr)this.currentTrack.info.codec="vp9";else if(t===zr)this.currentTrack.info.codec="av1";else if(t===Ur){const e=this.currentTrack.codecPrivate?_.decode(this.currentTrack.codecPrivate):"";mi.includes(e)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=e)}const e=this.currentTrack;this.currentTrack.trackBacking=new on(e),this.currentSegment.tracks.push(this.currentTrack)}else if("audio"===this.currentTrack.info.type){t===qr?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===Wr?this.currentTrack.info.codec="mp3":t===Hr?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=bi):t===Vr?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===jr?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Kr?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===Xr?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):t===$r?(this.currentTrack.info.codec="dts","A_DTS/EXPRESS"===this.currentTrack.codecId?this.currentTrack.info.dtsFormat="dtse":"A_DTS/LOSSLESS"===this.currentTrack.codecId&&(this.currentTrack.info.dtsFormat="dtsl")):"A_PCM/INT/LIT"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32"):"A_PCM/INT/BIG"===this.currentTrack.codecId?8===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-u8":16===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s16be":24===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-s24be":32===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-s32be"):"A_PCM/FLOAT/IEEE"===this.currentTrack.codecId&&(32===this.currentTrack.info.bitDepth?this.currentTrack.info.codec="pcm-f32":64===this.currentTrack.info.bitDepth&&(this.currentTrack.info.codec="pcm-f64"));const e=this.currentTrack;this.currentTrack.trackBacking=new ln(e),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null;break;case yr.TrackNumber:if(!this.currentTrack)break;this.currentTrack.id=xr(e,he);break;case yr.TrackType:{if(!this.currentTrack)break;const t=xr(e,he);1===t?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,rotation:0,codec:null,codecDescription:null,colorSpace:d({},z),alphaMode:!1,proresFormat:null}:2===t&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case yr.FlagEnabled:if(!this.currentTrack)break;xr(e,he)||(this.currentTrack=null);break;case yr.FlagDefault:if(!this.currentTrack)break;this.currentTrack.disposition.default=!!xr(e,he);break;case yr.FlagForced:if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!xr(e,he);break;case yr.FlagOriginal:if(!this.currentTrack)break;this.currentTrack.disposition.original=!!xr(e,he);break;case yr.FlagHearingImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!xr(e,he);break;case yr.FlagVisualImpaired:if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!xr(e,he);break;case yr.FlagCommentary:if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!xr(e,he);break;case yr.CodecID:if(!this.currentTrack)break;this.currentTrack.codecId=_r(e,he);break;case yr.CodecPrivate:if(!this.currentTrack)break;this.currentTrack.codecPrivate=Mo(e,he);break;case yr.DefaultDuration:if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=xr(e,he);break;case yr.Name:if(!this.currentTrack)break;this.currentTrack.name=Rr(e,he);break;case yr.Language:if(!this.currentTrack)break;if(this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=_r(e,he),ue(this.currentTrack.languageCode)||(this.currentTrack.languageCode=re);break;case yr.LanguageBCP47:{if(!this.currentTrack)break;const t=_r(e,he).split("-")[0];this.currentTrack.languageCode=t||re,this.currentTrack.hasLanguageBcp47=!0}break;case yr.Video:if("video"!==(null==(s=null==(n=this.currentTrack)?void 0:n.info)?void 0:s.type))break;this.readContiguousElements(e.slice(fe,he));break;case yr.PixelWidth:if("video"!==(null==(o=null==(a=this.currentTrack)?void 0:a.info)?void 0:o.type))break;this.currentTrack.info.width=xr(e,he);break;case yr.PixelHeight:if("video"!==(null==(c=null==(l=this.currentTrack)?void 0:l.info)?void 0:c.type))break;this.currentTrack.info.height=xr(e,he);break;case yr.DisplayWidth:if("video"!==(null==(f=null==(u=this.currentTrack)?void 0:u.info)?void 0:f.type))break;this.currentTrack.info.displayWidth=xr(e,he);break;case yr.DisplayHeight:if("video"!==(null==(p=null==(m=this.currentTrack)?void 0:m.info)?void 0:p.type))break;this.currentTrack.info.displayHeight=xr(e,he);break;case yr.DisplayUnit:if("video"!==(null==(k=null==(g=this.currentTrack)?void 0:g.info)?void 0:k.type))break;this.currentTrack.info.displayUnit=xr(e,he);break;case yr.AlphaMode:if("video"!==(null==(b=null==(y=this.currentTrack)?void 0:y.info)?void 0:b.type))break;this.currentTrack.info.alphaMode=1===xr(e,he);break;case yr.Colour:if("video"!==(null==(v=null==(T=this.currentTrack)?void 0:T.info)?void 0:v.type))break;this.readContiguousElements(e.slice(fe,he));break;case yr.MatrixCoefficients:{if("video"!==(null==(I=null==(P=this.currentTrack)?void 0:P.info)?void 0:I.type))break;const t=xr(e,he),i=O[t];this.currentTrack.info.colorSpace.matrix=i}break;case yr.Range:{if("video"!==(null==(C=null==(x=this.currentTrack)?void 0:x.info)?void 0:C.type))break;const t=xr(e,he);this.currentTrack.info.colorSpace.fullRange=1===t||2===t?2===t:void 0}break;case yr.TransferCharacteristics:{if("video"!==(null==(E=null==(B=this.currentTrack)?void 0:B.info)?void 0:E.type))break;const t=xr(e,he),i=M[t];this.currentTrack.info.colorSpace.transfer=i}break;case yr.Primaries:{if("video"!==(null==(F=null==(R=this.currentTrack)?void 0:R.info)?void 0:F.type))break;const t=xr(e,he),i=A[t];this.currentTrack.info.colorSpace.primaries=i}break;case yr.Projection:if("video"!==(null==(N=null==(D=this.currentTrack)?void 0:D.info)?void 0:N.type))break;this.readContiguousElements(e.slice(fe,he));break;case yr.ProjectionPoseRoll:{if("video"!==(null==(U=null==(L=this.currentTrack)?void 0:L.info)?void 0:U.type))break;const t=-Fr(e,he);try{this.currentTrack.info.rotation=w(t)}catch(me){}}break;case yr.Audio:if("audio"!==(null==(W=null==(q=this.currentTrack)?void 0:q.info)?void 0:W.type))break;this.readContiguousElements(e.slice(fe,he));break;case yr.SamplingFrequency:if("audio"!==(null==(V=null==(H=this.currentTrack)?void 0:H.info)?void 0:V.type))break;this.currentTrack.info.sampleRate=Fr(e,he);break;case yr.Channels:if("audio"!==(null==(K=null==(j=this.currentTrack)?void 0:j.info)?void 0:K.type))break;this.currentTrack.info.numberOfChannels=xr(e,he);break;case yr.BitDepth:if("audio"!==(null==($=null==(X=this.currentTrack)?void 0:X.info)?void 0:$.type))break;this.currentTrack.info.bitDepth=xr(e,he);break;case yr.CuePoint:if(!this.currentSegment)break;this.readContiguousElements(e.slice(fe,he)),this.currentCueTime=null;break;case yr.CueTime:this.currentCueTime=xr(e,he);break;case yr.CueTrackPositions:{if(null===this.currentCueTime)break;S(this.currentSegment);const t={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(t),this.readContiguousElements(e.slice(fe,he)),-1!==t.trackId&&-1!==t.clusterPosition||this.currentSegment.cuePoints.pop()}break;case yr.CueTrack:{const t=null==(G=this.currentSegment)?void 0:G.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;t.trackId=xr(e,he)}break;case yr.CueClusterPosition:{const t=null==(Q=this.currentSegment)?void 0:Q.cuePoints[this.currentSegment.cuePoints.length-1];if(!t)break;S(this.currentSegment),t.clusterPosition=this.currentSegment.dataStartPos+xr(e,he)}break;case yr.Timestamp:if(!this.currentCluster)break;this.currentCluster.timestamp=xr(e,he);break;case yr.SimpleBlock:{if(!this.currentCluster)break;const t=Ir(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=Uo(e),n=No(e),s=n>>1&3;let a=!!(128&n);"audio"===(null==(Y=i.track.info)?void 0:Y.type)&&i.track.info.codec&&(a=!0);const o=Mo(e,he-(e.filePos-fe)),l=i.track.decodingInstructions.length>0;i.blocks.push({timestamp:r,duration:0,isKeyFrame:a,data:o,lacing:s,decoded:!l,postProcessed:!1,mainAdditional:null})}break;case yr.BlockGroup:if(!this.currentCluster)break;this.readContiguousElements(e.slice(fe,he)),this.currentBlock=null;break;case yr.Block:{if(!this.currentCluster)break;const t=Ir(e);if(null===t)break;const i=this.getTrackDataInCluster(this.currentCluster,t);if(!i)break;const r=Uo(e),n=No(e)>>1&3,s=Mo(e,he-(e.filePos-fe)),a=i.track.decodingInstructions.length>0;this.currentBlock={timestamp:r,duration:0,isKeyFrame:!0,data:s,lacing:n,decoded:!a,postProcessed:!1,mainAdditional:null},i.blocks.push(this.currentBlock)}break;case yr.BlockAdditions:this.readContiguousElements(e.slice(fe,he));break;case yr.BlockMore:if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(fe,he)),this.currentBlockAdditional.data&&1===this.currentBlockAdditional.addId&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null;break;case yr.BlockAdditional:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=Mo(e,he);break;case yr.BlockAddID:if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=xr(e,he);break;case yr.BlockDuration:if(!this.currentBlock)break;this.currentBlock.duration=xr(e,he);break;case yr.ReferenceBlock:if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1;break;case yr.Tag:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(fe,he));break;case yr.Targets:this.readContiguousElements(e.slice(fe,he));break;case yr.TargetTypeValue:50!==xr(e,he)&&(this.currentTagTargetIsMovie=!1);break;case yr.TagTrackUID:case yr.TagEditionUID:case yr.TagChapterUID:case yr.TagAttachmentUID:this.currentTagTargetIsMovie=!1;break;case yr.SimpleTag:if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(fe,he));break;case yr.TagName:this.currentSimpleTagName=Rr(e,he);break;case yr.TagString:{if(!this.currentSimpleTagName)break;const t=Rr(e,he);this.processTagValue(this.currentSimpleTagName,t)}break;case yr.TagBinary:{if(!this.currentSimpleTagName)break;const t=Mo(e,he);this.processTagValue(this.currentSimpleTagName,t)}break;case yr.AttachedFile:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(fe,he));const t=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(null!=t.raw||(t.raw={}),t.raw[this.currentAttachedFile.fileUid.toString()]=new qe(this.currentAttachedFile.fileData,null!=(J=this.currentAttachedFile.fileMediaType)?J:void 0,null!=(Z=this.currentAttachedFile.fileName)?Z:void 0,null!=(ee=this.currentAttachedFile.fileDescription)?ee:void 0)),(null==(te=this.currentAttachedFile.fileMediaType)?void 0:te.startsWith("image/"))&&this.currentAttachedFile.fileData){const e=this.currentAttachedFile.fileName;let i="unknown";if(e){const t=e.toLowerCase();t.startsWith("cover.")?i="coverFront":t.startsWith("back.")&&(i="coverBack")}null!=t.images||(t.images=[]),t.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:i,name:null!=(ie=this.currentAttachedFile.fileName)?ie:void 0,description:null!=(ne=this.currentAttachedFile.fileDescription)?ne:void 0})}this.currentAttachedFile=null}break;case yr.FileUID:if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=((e,t)=>{if(t<1)throw new Error("Bad unsigned int size "+t);let i=BigInt("0");for(let r=0;rt.order-e.order);break;case yr.ContentEncoding:this.currentDecodingInstruction={order:0,scope:Jr.Block,data:null},this.readContiguousElements(e.slice(fe,he)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case yr.ContentEncodingOrder:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=xr(e,he);break;case yr.ContentEncodingScope:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=xr(e,he);break;case yr.ContentCompression:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:en.Zlib,settings:null},this.readContiguousElements(e.slice(fe,he));break;case yr.ContentCompAlgo:if("decompress"!==(null==(ae=null==(se=this.currentDecodingInstruction)?void 0:se.data)?void 0:ae.type))break;this.currentDecodingInstruction.data.algorithm=xr(e,he);break;case yr.ContentCompSettings:if("decompress"!==(null==(le=null==(oe=this.currentDecodingInstruction)?void 0:oe.data)?void 0:le.type))break;this.currentDecodingInstruction.data.settings=Mo(e,he);break;case yr.ContentEncryption:if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}return e.filePos=fe+he,!0}decodeBlockData(e,t){S(e.decodingInstructions.length>0);let i=t;for(const r of e.decodingInstructions)if(S(r.data),"decompress"===r.data.type)if(r.data.algorithm===en.HeaderStripping)if(r.data.settings&&r.data.settings.length>0){const e=r.data.settings,t=new Uint8Array(e.length+i.length);t.set(e,0),t.set(i,e.length),i=t}return i}processTagValue(e,t){var i,r;if(!(null==(i=this.currentSegment)?void 0:i.metadataTags))return;const n=this.currentSegment.metadataTags;if(null!=n.raw||(n.raw={}),null!=(r=n.raw)[e]||(r[e]=t),"string"===typeof t)switch(e.toLowerCase()){case"title":null!=n.title||(n.title=t);break;case"description":null!=n.description||(n.description=t);break;case"artist":null!=n.artist||(n.artist=t);break;case"album":null!=n.album||(n.album=t);break;case"album_artist":null!=n.albumArtist||(n.albumArtist=t);break;case"genre":null!=n.genre||(n.genre=t);break;case"comment":null!=n.comment||(n.comment=t);break;case"lyrics":null!=n.lyrics||(n.lyrics=t);break;case"date":{const e=new Date(t);Number.isNaN(e.getTime())||null!=n.date||(n.date=e)}break;case"track_number":case"part_number":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.trackNumber||(n.trackNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.tracksTotal||(n.tracksTotal=r))}break;case"disc_number":case"disc":{const e=t.split("/"),i=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(i)&&i>0&&(null!=n.discNumber||(n.discNumber=i)),r&&Number.isInteger(r)&&r>0&&(null!=n.discsTotal||(n.discsTotal=r))}}}getDurationFromMetadata(e){return p(this,null,function*(){if(e.duration<=0)return null;let t=null;for(const r of e.tracks){S(r.trackBacking);const e=yield r.trackBacking.getFirstPacket({metadataOnly:!0});e&&(t=Math.min(null!=t?t:1/0,e.timestamp))}let i=e.duration/e.timestampFactor;return i+=null!=t?t:0,i})}}class an{constructor(e){this.internalTrack=e,this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){const e=this.internalTrack.demuxer,t=this.internalTrack.trackBacking.getType();let i=0;for(const r of e.segments)for(const e of r.tracks)if(e.trackBacking.getType()===t&&i++,e===this.internalTrack)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return p(this,null,function*(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)})}getLiveRefreshInterval(){return p(this,null,function*(){return null})}getFirstPacket(e){return p(this,null,function*(){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,e)})}intoTimescale(e){return ne(e*this.internalTrack.segment.timestampFactor)}getPacket(e,t){return p(this,null,function*(){const i=this.intoTimescale(e);return this.performClusterLookup(null,e=>{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=K(t.presentationTimestamps,i,e=>e.timestamp);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id);if(i.blockIndex+1{const t=e.trackData.get(this.internalTrack.id);if(!t)return{blockIndex:-1,correctBlockFound:!1};const r=Y(t.presentationTimestamps,e=>t.blocks[e.blockIndex].isKeyFrame&&e.timestamp<=i);return{blockIndex:-1!==r?t.presentationTimestamps[r].blockIndex:-1,correctBlockFound:-1!==r&&i{if(e===i.cluster){const t=e.trackData.get(this.internalTrack.id).blocks.findIndex((e,t)=>e.isKeyFrame&&t>i.blockIndex);if(-1!==t)return{blockIndex:t,correctBlockFound:!0}}else{const t=e.trackData.get(this.internalTrack.id);if(t&&null!==t.firstKeyFrameTimestamp){const e=t.blocks.findIndex(e=>e.isKeyFrame);return S(-1!==e),{blockIndex:e,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,t)})}fetchPacketInCluster(e,t,i){return p(this,null,function*(){var r,n;if(-1===t)return null;const s=e.trackData.get(this.internalTrack.id).blocks[t];if(S(s),s.decoded||(s.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,s.data),s.decoded=!0),!s.postProcessed){if("prores"===(null==(r=this.internalTrack.info)?void 0:r.codec)){if(!(s.data.length>=8&&105===s.data[4]&&99===s.data[5]&&112===s.data[6]&&102===s.data[7])){const e=new Uint8Array(s.data.length+8);E(e).setUint32(0,e.length,!1),e[4]=105,e[5]=99,e[6]=112,e[7]=102,e.set(s.data,8),s.data=e}}s.postProcessed=!0}const a=i.metadataOnly?Di:s.data,o=s.timestamp/this.internalTrack.segment.timestampFactor,l=s.duration/this.internalTrack.segment.timestampFactor,c={};s.mainAdditional&&"video"===(null==(n=this.internalTrack.info)?void 0:n.type)&&this.internalTrack.info.alphaMode&&(c.alpha=i.metadataOnly?Di:s.mainAdditional,c.alphaByteLength=s.mainAdditional.byteLength);const u=new Mi(a,s.isKeyFrame?"key":"delta",o,l,e.dataStartPos+t,s.data.byteLength,c);return this.packetToClusterLocation.set(u,{cluster:e,blockIndex:t}),u})}performClusterLookup(e,t,i,r,n){return p(this,null,function*(){var s,a,o,l;const{demuxer:c,segment:u}=this.internalTrack;let d=null,h=null,f=-1;if(e){const{blockIndex:i,correctBlockFound:r}=t(e);if(r)return this.fetchPacketInCluster(e,i,n);-1!==i&&(h=e,f=i)}const m=K(this.internalTrack.cuePoints,i,e=>e.time),p=-1!==m?this.internalTrack.cuePoints[m]:null,g=K(this.internalTrack.clusterPositionCache,i,e=>e.startTimestamp),k=-1!==g?this.internalTrack.clusterPositionCache[g]:null,y=Math.max(null!=(s=null==p?void 0:p.clusterPosition)?s:0,null!=(a=null==k?void 0:k.elementStartPos)?a:0)||null;let b;for(e?null===y||e.elementStartPos>=y?(b=e.elementEndPos,d=e):b=y:b=null!=y?y:u.clusterSeekStartPos;null===u.elementEndPos||b<=u.elementEndPos-2;){if(d){const e=d.trackData.get(this.internalTrack.id);if(e&&e.startTimestamp>r)break}let e=c.reader.requestSliceRange(b,2,wr);if(Pe(e)&&(e=yield e),!e)break;const i=b,s=Er(e);if(!s||!vr.includes(s.id)&&s.id!==yr.Void){const e=yield Dr(c.reader,i,vr,Math.min(null!=(o=u.elementEndPos)?o:1/0,i+nn));if(e){b=e;continue}break}const a=s.id;let l=s.size;const m=e.filePos;if(a===yr.Cluster){d=yield c.readCluster(i,u),l=d.elementEndPos-m;const{blockIndex:e,correctBlockFound:r}=t(d);if(r)return this.fetchPacketInCluster(d,e,n);-1!==e&&(h=d,f=e)}if(void 0===l){S(a!==yr.Cluster);l=(yield Ar(c.reader,m,Sr,u.elementEndPos)).pos-m}const p=m+l;if(null===u.elementEndPos){let e=c.reader.requestSliceRange(p,2,wr);if(Pe(e)&&(e=yield e),!e)break;if(Cr(e)===yr.Segment){u.elementEndPos=p;break}}b=p}if(p&&(!h||h.elementStartPosp(this,null,function*(){var e,t,i,r,n;let s=null;("vp9"===this.internalTrack.info.codec||"av1"===this.internalTrack.info.codec||"prores"===this.internalTrack.info.codec||"avc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription||"hevc"===this.internalTrack.info.codec&&!this.internalTrack.info.codecDescription)&&(s=yield this.getFirstPacket({}));const a={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:"avc"===this.internalTrack.info.codec&&s?ct(s.data):null,hevcCodecInfo:"hevc"===this.internalTrack.info.codec&&s?bt(s.data):null,vp9CodecInfo:"vp9"===this.internalTrack.info.codec&&s?Rt(s.data):null,av1CodecInfo:"av1"===this.internalTrack.info.codec&&s?At(s.data):null,proresCodecInfo:"prores"===this.internalTrack.info.codec&&s?Dt(s.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!L(this.internalTrack.info.colorSpace)){const n=ki(a);null!=(e=this.internalTrack.info.colorSpace).primaries||(e.primaries=n.primaries),null!=(t=this.internalTrack.info.colorSpace).transfer||(t.transfer=n.transfer),null!=(i=this.internalTrack.info.colorSpace).matrix||(i.matrix=n.matrix),null!=(r=this.internalTrack.info.colorSpace).fullRange||(r.fullRange=n.fullRange)}const o={codec:gi(a),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:null!=(n=this.internalTrack.info.codecDescription)?n:void 0,colorSpace:this.internalTrack.info.colorSpace};return this.internalTrack.info.width===this.internalTrack.info.squarePixelWidth&&this.internalTrack.info.height===this.internalTrack.info.squarePixelHeight||(o.displayAspectWidth=this.internalTrack.info.squarePixelWidth,o.displayAspectHeight=this.internalTrack.info.squarePixelHeight),o}))():null})}}class ln extends an{constructor(e){super(e),this.decoderConfigPromise=null,this.internalTrack=e}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}getDecoderConfig(){return p(this,null,function*(){var e;return this.internalTrack.info.codec?null!=(e=this.decoderConfigPromise)?e:this.decoderConfigPromise=(()=>p(this,null,function*(){var e;if("dts"===this.internalTrack.info.codec&&!this.internalTrack.info.dtsFormat){const e=yield this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&ri(e.data)}return{codec:yi({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:null!=(e=this.internalTrack.info.codecDescription)?e:void 0}}))():null})}}const cn=(e,t,i,r=null)=>p(null,null,function*(){const n=c(2,16);let s=t;for(;null===i||s=4;){const t=a.filePos,i=Wo(a),n=null!==e.fileSize?e.fileSize-s:null,o=Bi(i,n);if(o.header&&(!r||o.header.sampleRate===r.sampleRate&&o.header.mpegVersionId===r.mpegVersionId&&o.header.layer===r.layer&&Fi(o.header.channel)===Fi(r.channel)))return{header:o.header,startPos:s};a.filePos=t+o.bytesAdvanced,s=a.filePos}}return null});class un extends Ai{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.firstFrameHeaderPos=null,this.xingFrameHeader=null,this.xingFrameHeaderPos=null,this.loadedSamples=[],this.metadataTags=null,this.xingData=null,this.trackBackings=[],this.readingMutex=new q,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return p(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>p(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new dn(this)]}))()})}advanceReader(){return p(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,nl);if(Pe(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=ll(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}const e=yield cn(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e)return void(this.lastSampleLoaded=!0);const t=e.header;this.lastLoadedPos=e.startPos+t.totalSize-1;const i=Ci(t.mpegVersionId,t.channel);let r=this.reader.requestSlice(e.startPos+i,4);if(Pe(r)&&(r=yield r),r){const n=Wo(r);if(n===Ii||n===xi){if(this.xingFrameHeader||(this.xingFrameHeader=t,this.xingFrameHeaderPos=e.startPos),!this.xingData){let t=this.reader.requestSlice(e.startPos+i+4,12);if(Pe(t)&&(t=yield t),t){const e=Mo(t,12),i=E(e),r=i.getUint32(0,!1);this.xingData={frameCount:r&_i.FrameCount?i.getUint32(4,!1):null,fileSize:r&_i.FileSize?i.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=t,this.firstFrameHeaderPos=e.startPos);const n=t.audioSamplesInFrame/this.firstFrameHeader.sampleRate,s={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:n,dataStart:e.startPos,dataSize:t.totalSize};this.loadedSamples.push(s),this.nextTimestampInSamples+=t.audioSamplesInFrame})}getMimeType(){return p(this,null,function*(){return"audio/mpeg"})}getTrackBackings(){return p(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return p(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0,t=!1;for(;;){let i=this.reader.requestSlice(e,nl);if(Pe(i)&&(i=yield i),!i)break;const r=ll(i);if(!r)break;t=!0;let n=this.reader.requestSlice(i.filePos,r.size);if(Pe(n)&&(n=yield n),!n)break;cl(n,r,this.metadataTags),e=i.filePos+r.size}if(!t&&null!==this.reader.fileSize&&this.reader.fileSize>=rl){let e=this.reader.requestSlice(this.reader.fileSize-rl,rl);Pe(e)&&(e=yield e),S(e);"TAG"===Yo(e,3)&&al(e,this.metadataTags)}return this.metadataTags}finally{e()}})}}class dn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return S(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return p(this,null,function*(){const e=this.demuxer;if(S(null!==e.firstFrameHeader),S(null!==e.firstFrameHeaderPos),e.xingData){if(null!==e.xingData.frameCount)return e.xingData.frameCount*e.firstFrameHeader.audioSamplesInFrame/e.firstFrameHeader.sampleRate}else if(null!==e.reader.fileSize){const s=(t=e.firstFrameHeader.lowSamplingFrequency,i=e.firstFrameHeader.layer,r=e.firstFrameHeader.bitrate,n=e.firstFrameHeader.sampleRate,0===i?0:1===i?144*r/(n<e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return p(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=K(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1>>0&4294967295}const mn=e=>{const t=E(e),i=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let n=0;n>>24^t])>>>0}return t.setUint32(22,i,!0),r},pn=(e,t,i)=>{let r=0,n=null;if(e.length>0)if("vorbis"===t.codec){S(t.vorbisInfo);const s=(1<<(e=>{let t=0;for(;e;)t++,e>>=1;return t})(t.vorbisInfo.modeBlockflags.length-1))-1<<1,a=(e[0]&s)>>1;if(a>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let o=i;const l=t.vorbisInfo.modeBlockflags[a];if(n=t.vorbisInfo.blocksizes[l],1===l){const i=1+(1|s),r=e[0]&i?1:0;o=t.vorbisInfo.blocksizes[r]}r=null!==o?o+n>>2:0}else if("opus"===t.codec){r=(e=>{const t=e[0]>>3,i=3&e[0];let r;return r=0===i?1:1===i||2===i?2:63&e[1],{durationInSamples:Mt[t]*r}})(e).durationInSamples}return{durationInSamples:r,vorbisBlockSize:n}},gn=27,kn=282,yn=e=>{const t=e.filePos;if(Ho(e)!==hn)return null;e.skip(1);const i=No(e),r=$o(e),n=Ho(e),s=Ho(e),a=Ho(e),o=No(e),l=new Uint8Array(o);for(let d=0;de+t,0);return{headerStartPos:t,totalSize:c+u,dataStartPos:t+c,dataSize:u,headerType:i,granulePosition:r,serialNumber:n,sequenceNumber:s,checksum:a,lacingValues:l}},bn=(e,t)=>{for(;e.filePos>>8&255)===i||(t>>>16&255)===i||(t>>>24&255)===i){if(e.skip(-4),t===hn)return!0;e.skip(1)}}return!1};class Tn extends Ai{constructor(e){super(e),this.metadataPromise=null,this.bitstreams=[],this.trackBackings=[],this.metadataTags={},this.reader=e._reader}readMetadata(){return p(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>p(this,null,function*(){let e=0;for(;;){let t=this.reader.requestSliceRange(e,gn,kn);if(Pe(t)&&(t=yield t),!t)break;const i=yn(t);if(!i)break;if(!!!(2&i.headerType))break;this.bitstreams.push({serialNumber:i.serialNumber,bosPage:i,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=i.headerStartPos+i.totalSize}for(const t of this.bitstreams){const e=yield this.readPacket(t.bosPage,0);e&&(e.data.byteLength>=7&&1===e.data[0]&&118===e.data[1]&&111===e.data[2]&&114===e.data[3]&&98===e.data[4]&&105===e.data[5]&&115===e.data[6]?yield this.readVorbisMetadata(e,t):e.data.byteLength>=8&&79===e.data[0]&&112===e.data[1]&&117===e.data[2]&&115===e.data[3]&&72===e.data[4]&&101===e.data[5]&&97===e.data[6]&&100===e.data[7]&&(yield this.readOpusMetadata(e,t)),null!==t.codecInfo.codec&&this.trackBackings.push(new vn(t,this)))}}))()})}readVorbisMetadata(e,t){return p(this,null,function*(){let i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;if(i=yield this.findNextPacketStart(r),!i)return;const n=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!n)return;if(3!==r.data[0]||5!==n.data[0])return;const s=[],a=e=>{for(;s.push(Math.min(255,e)),!(e<255);)e-=255};a(e.data.length),a(r.data.length);const o=new Uint8Array(1+s.length+e.data.length+r.data.length+n.data.length);o[0]=2,o.set(s,1),o.set(e.data,1+s.length),o.set(r.data,1+s.length+e.data.length),o.set(n.data,1+s.length+e.data.length+r.data.length),t.codecInfo.codec="vorbis",t.description=o,t.lastMetadataPacket=n;const l=E(e.data);t.numberOfChannels=l.getUint8(11),t.sampleRate=l.getUint32(12,!0);const c=l.getUint8(28);t.codecInfo.vorbisInfo={blocksizes:[1<<(15&c),1<<(c>>4)],modeBlockflags:Nt(n.data).modeBlockflags},Ut(r.data.subarray(7),this.metadataTags)})}readOpusMetadata(e,t){return p(this,null,function*(){const i=yield this.findNextPacketStart(e);if(!i)return;const r=yield this.readPacket(i.startPage,i.startSegmentIndex);if(!r)return;t.codecInfo.codec="opus",t.description=e.data,t.lastMetadataPacket=r;const n=(e=>{const t=E(e),i=t.getUint8(9),r=t.getUint16(10,!0),n=t.getUint32(12,!0),s=t.getInt16(16,!0),a=t.getUint8(18);let o=null;return a&&(o=e.subarray(19,21+i)),{outputChannelCount:i,preSkip:r,inputSampleRate:n,outputGain:s,channelMappingFamily:a,channelMappingTable:o}})(e.data);t.numberOfChannels=n.outputChannelCount,t.sampleRate=bi,t.codecInfo.opusInfo={preSkip:n.preSkip},Ut(r.data.subarray(8),this.metadataTags)})}readPacket(e,t){return p(this,null,function*(){S(te+t.length,0);if(0===o)return null;const l=new Uint8Array(o);let c=0;for(let e=0;e{let t="audio/ogg";e.codecStrings&&(t+=`; codecs="${[...new Set(e.codecStrings)].join(", ")}"`);return t})({codecStrings:(yield Promise.all(this.trackBackings.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null})))).filter(Boolean)})})}getTrackBackings(){return p(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return p(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}class vn{constructor(e,t){this.bitstream=e,this.demuxer=t,this.encodedPacketToMetadata=new WeakMap,this.sequentialScanCache=[],this.sequentialScanMutex=new q,this.internalSampleRate="opus"===e.codecInfo.codec?bi:e.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){const e=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return S(-1!==e),e+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return p(this,null,function*(){return null})}getLiveRefreshInterval(){return p(this,null,function*(){return null})}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}getDecoderConfig(){return p(this,null,function*(){var e;return S(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:null!=(e=this.bitstream.description)?e:void 0}})}getName(){return null}getLanguageCode(){return re}getDisposition(){return h(d({},We),{primary:!1})}granulePositionToTimestampInSamples(e){return"opus"===this.bitstream.codecInfo.codec?(S(this.bitstream.codecInfo.opusInfo),e-this.bitstream.codecInfo.opusInfo.preSkip):e}createEncodedPacketFromOggPacket(e,t,i){if(!e)return null;const{durationInSamples:r,vorbisBlockSize:n}=pn(e.data,this.bitstream.codecInfo,t.vorbisLastBlocksize),s=new Mi(i.metadataOnly?Di:e.data,"key",Math.max(0,t.timestampInSamples)/this.internalSampleRate,r/this.internalSampleRate,e.endPage.headerStartPos+e.endSegmentIndex,e.data.byteLength);return this.encodedPacketToMetadata.set(s,{packet:e,timestampInSamples:t.timestampInSamples,durationInSamples:r,vorbisLastBlockSize:t.vorbisLastBlocksize,vorbisBlockSize:n}),s}getFirstPacket(e){return p(this,null,function*(){S(this.bitstream.lastMetadataPacket);const t=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!t)return null;let i=0;"opus"===this.bitstream.codecInfo.codec&&(S(this.bitstream.codecInfo.opusInfo),i-=this.bitstream.codecInfo.opusInfo.preSkip);const r=yield this.demuxer.readPacket(t.startPage,t.startSegmentIndex);return this.createEncodedPacketFromOggPacket(r,{timestampInSamples:i,vorbisLastBlocksize:null},e)})}getNextPacket(e,t){return p(this,null,function*(){const i=this.encodedPacketToMetadata.get(e);if(!i)throw new Error("Packet was not created from this track.");const r=yield this.demuxer.findNextPacketStart(i.packet);if(!r)return null;const n=i.timestampInSamples+i.durationInSamples,s=yield this.demuxer.readPacket(r.startPage,r.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:n,vorbisLastBlocksize:i.vorbisBlockSize},t)})}getPacket(e,t){return p(this,null,function*(){var i,r;if(null===this.demuxer.reader.fileSize)return this.getPacketSequential(e,t);const n=ne(e*this.internalSampleRate);if(0===n)return this.getFirstPacket(t);if(n<0)return null;S(this.bitstream.lastMetadataPacket);const s=yield this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!s)return null;let a=s.startPage,o=this.demuxer.reader.fileSize;const l=[a];e:for(;a.headerStartPos+a.totalSizen?o=c.headerStartPos:(a=c,l.push(c));continue e}i=c.headerStartPos+c.totalSize}}let c=s.startPage;for(const e of l){if(e.granulePosition===a.granulePosition)break;(!c||e.headerStartPos>c.headerStartPos)&&(c=e)}let u=c;const d=[u];for(;u.serialNumber!==this.bitstream.serialNumber||u.granulePosition!==a.granulePosition;){const e=u.headerStartPos+u.totalSize;let t=this.demuxer.reader.requestSliceRange(e,gn,kn);Pe(t)&&(t=yield t),S(t);const i=yn(t);S(i),u=i,u.serialNumber===this.bitstream.serialNumber&&d.push(u)}S(-1!==u.granulePosition);let h,f,m=null,p=u,g=0;if(u.headerStartPos===s.startPage.headerStartPos)h=this.granulePositionToTimestampInSamples(0),f=!0,m=0;else{h=0,f=!1;for(let t=u.lacingValues.length-1;t>=0;t--){if(u.lacingValues[t]<255){m=t+1;break}}if(null===m)throw new Error("Invalid page with granule position: no packets end on this page.");g=m-1;const e={data:Di,endPage:p,endSegmentIndex:g};if(yield this.demuxer.findNextPacketStart(e)){const e=wn(d,u,m);S(e);const t=Sn(d,e.page,e.segmentIndex);t&&(u=t.page,m=t.segmentIndex)}else for(;;){const e=wn(d,u,m);if(!e)break;const t=Sn(d,e.page,e.segmentIndex);if(!t)break;if(u=t.page,m=t.segmentIndex,e.page.headerStartPos!==p.headerStartPos){p=e.page,g=e.segmentIndex;break}}}let k=null,y=null;for(;null!==u;){S(null!==m);const e=yield this.demuxer.readPacket(u,m);if(!e)break;if(!(u.headerStartPos===s.startPage.headerStartPos&&mn||Math.max(a.timestampInSamples,0)===n))break}const a=yield this.demuxer.findNextPacketStart(e);if(!a)break;u=a.startPage,m=a.startSegmentIndex}return k})}getPacketSequential(e,t){return p(this,null,function*(){const i=yield this.sequentialScanMutex.acquire();try{const i=ne(e*this.internalSampleRate);e=i/this.internalSampleRate;const r=K(this.sequentialScanCache,i,e=>e.timestampInSamples);let n;if(-1!==r){const e=this.sequentialScanCache[r];n=this.createEncodedPacketFromOggPacket(e.packet,{timestampInSamples:e.timestampInSamples,vorbisLastBlocksize:e.vorbisLastBlockSize},t)}else n=yield this.getFirstPacket(t);let s=0;for(;n&&n.timestampe)break;if(n=i,s++,100===s){s=0;const e=this.encodedPacketToMetadata.get(n);S(e),this.sequentialScanCache.length>0&&S(P(this.sequentialScanCache).timestampInSamples<=e.timestampInSamples),this.sequentialScanCache.push(e)}}return n}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const Sn=(e,t,i)=>{let r=t,n=i;e:for(;;){for(n--;n>=0;n--){if(r.lacingValues[n]<255){n++;break e}}S(-1===n);if(!(1&r.headerType)){n=0;break}const t=Q(e,e=>e.headerStartPos{if(i>0)return{page:t,segmentIndex:i-1};const r=Q(e,e=>e.headerStartPosp(this,null,function*(){var e,t;let i=this.reader.requestSlice(0,12);Pe(i)&&(i=yield i),S(i);const r=Yo(i,4),n="RIFX"!==r,s="RF64"===r,a=qo(i,n);let o=s?this.reader.fileSize:Math.min(a+8,null!=(e=this.reader.fileSize)?e:1/0);if("WAVE"!==Yo(i,4))throw new Error("Invalid WAVE file - wrong format");let l=0,c=null,u=i.filePos;for(;null===o||u=18&&357!==n){const e=Oo(r,i),s=t-18;if(Math.min(s,e)>=22&&n===Pn.EXTENSIBLE){r.skip(6);const e=Mo(r,16);n=e[0]|e[1]<<8}}if(n!==Pn.MULAW&&n!==Pn.ALAW||(l=8),n!==Pn.PCM&&n!==Pn.IEEE_FLOAT&&n!==Pn.ALAW&&n!==Pn.MULAW)throw new Error(`Unsupported WAVE codec (format tag ${n}). Only integer/float PCM, A-law, and \u03bc-law are supported.`);if(n===Pn.PCM&&![8,16,24,32].includes(l))throw new Error(`Unsupported WAVE PCM bit depth (${l}). Only 8, 16, 24, and 32 bits are supported.`);if(n===Pn.IEEE_FLOAT&&![32,64].includes(l))throw new Error(`Unsupported WAVE float bit depth (${l}). Only 32 and 64 bits are supported.`);this.audioInfo={format:n,numberOfChannels:s,sampleRate:a,sampleSizeInBytes:Math.ceil(l/8),blockSizeInBytes:o}})}parseListChunk(e,t,i){return p(this,null,function*(){var r,n,s,a,o,l,c,u,d,h,f;let m=this.reader.requestSlice(e,t);if(Pe(m)&&(m=yield m),!m)return;const p=Yo(m,4);if("INFO"!==p&&"INF0"!==p)return;let g=m.filePos;for(;g<=e+t-8;){m.filePos=g;const e=Yo(m,4),t=qo(m,i),p=Mo(m,t);let k=0;for(let i=0;i0&&(null!=(l=this.metadataTags).trackNumber||(l.trackNumber=t)),i&&Number.isInteger(i)&&i>0&&(null!=(c=this.metadataTags).tracksTotal||(c.tracksTotal=i))}break;case"ICRD":case"IDIT":{const e=new Date(y);Number.isNaN(e.getTime())||null!=(u=this.metadataTags).date||(u.date=e)}break;case"YEAR":{const e=Number.parseInt(y,10);Number.isInteger(e)&&e>0&&(null!=(d=this.metadataTags).date||(d.date=new Date(e,0,1)))}break;case"IGNR":case"GENR":null!=(h=this.metadataTags).genre||(h.genre=y);break;case"ICMT":case"CMNT":case"COMM":null!=(f=this.metadataTags).comment||(f.comment=y)}g+=8+t+(1&t)}})}parseId3Chunk(e,t){return p(this,null,function*(){let i=this.reader.requestSlice(e,t);if(Pe(i)&&(i=yield i),!i)return;const r=ll(i);if(r){const n=t-nl;if(r.size=Math.min(r.size,n),r.size>0){const t=i.slice(e+nl,r.size);cl(t,r,this.metadataTags)}}})}getCodec(){if(S(this.audioInfo),this.audioInfo.format===Pn.MULAW)return"ulaw";if(this.audioInfo.format===Pn.ALAW)return"alaw";if(this.audioInfo.format===Pn.PCM){if(1===this.audioInfo.sampleSizeInBytes)return"pcm-u8";if(2===this.audioInfo.sampleSizeInBytes)return"pcm-s16";if(3===this.audioInfo.sampleSizeInBytes)return"pcm-s24";if(4===this.audioInfo.sampleSizeInBytes)return"pcm-s32"}if(this.audioInfo.format===Pn.IEEE_FLOAT){if(4===this.audioInfo.sampleSizeInBytes)return"pcm-f32";if(8===this.audioInfo.sampleSizeInBytes)return"pcm-f64"}S(!1)}getMimeType(){return p(this,null,function*(){return"audio/wav"})}getTrackBackings(){return p(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return p(this,null,function*(){return yield this.readMetadata(),this.metadataTags})}}const Cn=2048;class Bn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return S(this.demuxer.audioInfo),this.demuxer.audioInfo.format}getDecoderConfig(){return p(this,null,function*(){const e=this.demuxer.getCodec();return e?(S(this.demuxer.audioInfo),{codec:e,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null})}getNumberOfChannels(){return S(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return S(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return S(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return p(this,null,function*(){return S(-1!==this.demuxer.dataSize),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return p(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return re}getDisposition(){return d({},We)}getPacketAtIndex(e,t){return p(this,null,function*(){S(e>=0),S(this.demuxer.audioInfo);const i=e*Cn*this.demuxer.audioInfo.blockSizeInBytes;if(i>=this.demuxer.dataSize)return null;const r=Math.min(Cn*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-i);if(null===this.demuxer.reader.fileSize){let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);if(Pe(e)&&(e=yield e),!e)return null}let n;if(t.metadataOnly)n=Di;else{let e=this.demuxer.reader.requestSlice(this.demuxer.dataStart+i,r);Pe(e)&&(e=yield e),S(e),n=Mo(e,r)}const s=e*Cn/this.demuxer.audioInfo.sampleRate,a=r/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(e,this.demuxer.lastKnownPacketIndex),new Mi(n,"key",s,a,e,r)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getPacket(e,t){return p(this,null,function*(){S(this.demuxer.audioInfo);const i=Math.floor(Math.min(e*this.demuxer.audioInfo.sampleRate/Cn,(this.demuxer.dataSize-1)/(Cn*this.demuxer.audioInfo.blockSizeInBytes)));if(i<0)return null;const r=yield this.getPacketAtIndex(i,t);if(r)return r;if(0===i)return null;S(null===this.demuxer.reader.fileSize);let n=yield this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,t);for(;n;){const e=yield this.getNextPacket(n,t);if(!e)break;n=e}return n})}getNextPacket(e,t){S(this.demuxer.audioInfo);const i=Math.round(e.timestamp*this.demuxer.audioInfo.sampleRate/Cn);return this.getPacketAtIndex(i+1,t)}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}}const En=e=>{const t=e.filePos,i=Mo(e,9),r=new He(i);if(4095!==r.readBits(12))return null;r.skipBits(1);if(0!==r.readBits(2))return null;const n=r.readBits(1),s=r.readBits(2)+1,a=r.readBits(4);if(15===a)return null;r.skipBits(1);const o=r.readBits(3);if(0===o)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);const l=r.readBits(13);r.skipBits(11);const c=r.readBits(2)+1;if(1!==c)throw new Error("ADTS frames with more than one AAC frame are not supported.");let u=null;return 1===n?e.filePos-=2:u=r.readBits(16),{objectType:s,samplingFrequencyIndex:a,channelConfiguration:o,frameLength:l,numberOfAacFrames:c,crcCheck:u,startPos:t}},_n=1024;class Rn extends Ai{constructor(e){super(e),this.metadataPromise=null,this.firstFrameHeader=null,this.loadedSamples=[],this.metadataTags=null,this.trackBackings=[],this.readingMutex=new q,this.lastSampleLoaded=!1,this.lastLoadedPos=0,this.nextTimestampInSamples=0,this.reader=e._reader}readMetadata(){return p(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>p(this,null,function*(){for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)yield this.advanceReader();S(this.firstFrameHeader),this.trackBackings=[new Fn(this)]}))()})}advanceReader(){return p(this,null,function*(){if(0===this.lastLoadedPos)for(;;){let e=this.reader.requestSlice(this.lastLoadedPos,nl);if(Pe(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=ll(e);if(!t)break;this.lastLoadedPos=e.filePos+t.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,7,9);if(Pe(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const t=En(e);if(!t)return void(this.lastSampleLoaded=!0);if(null!==this.reader.fileSize&&t.startPos+t.frameLength>this.reader.fileSize)return void(this.lastSampleLoaded=!0);this.firstFrameHeader||(this.firstFrameHeader=t);const i=Ve[t.samplingFrequencyIndex];S(void 0!==i);const r=_n/i,n={timestamp:this.nextTimestampInSamples/i,duration:r,dataStart:t.startPos,dataSize:t.frameLength};this.loadedSamples.push(n),this.nextTimestampInSamples+=_n,this.lastLoadedPos=t.startPos+t.frameLength})}getMimeType(){return p(this,null,function*(){return"audio/aac"})}getTrackBackings(){return p(this,null,function*(){return yield this.readMetadata(),this.trackBackings})}getMetadataTags(){return p(this,null,function*(){const e=yield this.readingMutex.acquire();try{if(yield this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let e=0;for(;;){let t=this.reader.requestSlice(e,nl);if(Pe(t)&&(t=yield t),!t)break;const i=ll(t);if(!i)break;let r=this.reader.requestSlice(t.filePos,i.size);if(Pe(r)&&(r=yield r),!r)break;cl(r,i,this.metadataTags),e=t.filePos+i.size}return this.metadataTags}finally{e()}})}}class Fn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/_n}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return p(this,null,function*(){return null})}getLiveRefreshInterval(){return p(this,null,function*(){return null})}getName(){return null}getLanguageCode(){return re}getCodec(){return"aac"}getInternalCodecId(){return S(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){S(this.demuxer.firstFrameHeader);const e=je[this.demuxer.firstFrameHeader.channelConfiguration];return S(void 0!==e),e}getSampleRate(){S(this.demuxer.firstFrameHeader);const e=Ve[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return S(void 0!==e),e}getDisposition(){return d({},We)}getDecoderConfig(){return p(this,null,function*(){return S(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}})}getPacketAtIndex(e,t){return p(this,null,function*(){if(-1===e)return null;const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=Di;else{let e=this.demuxer.reader.requestSlice(i.dataStart,i.dataSize);if(Pe(e)&&(e=yield e),!e)return null;r=Mo(e,i.dataSize)}return new Mi(r,"key",i.timestamp,i.duration,e,i.dataSize)})}getFirstPacket(e){return this.getPacketAtIndex(0,e)}getNextPacket(e,t){return p(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=j(this.demuxer.loadedSamples,e.timestamp,e=>e.timestamp);if(-1===i)throw new Error("Packet was not created from this track.");const r=i+1;for(;r>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(r,t)}finally{i()}})}getPacket(e,t){return p(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=K(this.demuxer.loadedSamples,e,e=>e.timestamp);if(-1===i&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(i,t);if(i>=0&&i+1p(this,null,function*(){var e;let t=0;for(;;){let e=this.reader.requestSlice(t,nl);if(Pe(e)&&(e=yield e),!e)return void(this.lastSampleLoaded=!0);const i=ll(e);if(!i)break;let r=this.reader.requestSlice(e.filePos,i.size);Pe(r)&&(r=yield r),S(r),cl(r,i,this.metadataTags),t=e.filePos+i.size}for(t+=4;null===this.reader.fileSize||ts.end-6)return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:s.end-e,isLastFrame:!0};if(255===No(s)){const t=s.filePos;if(No(s)!==(1===this.blockingBit?249:248)){s.filePos=t;continue}s.skip(-2);const i=s.filePos-e,r=this.readFlacFrameHeader({slice:s,isFirstPacket:!1});if(!r){s.filePos=t;continue}if(0===this.blockingBit){if(r.num-a.num!==1){s.filePos=t;continue}}else if(r.num-a.num!==a.blockSize){s.filePos=t;continue}return{num:a.num,blockSize:a.blockSize,sampleRate:a.sampleRate,size:i,isLastFrame:!1}}}})}readFlacFrameHeader({slice:e,isFirstPacket:t}){const i=e.filePos,r=Mo(e,4),n=new He(r);if(32764!==n.readBits(15))return null;if(null===this.blockingBit){S(t);const e=n.readBits(1);this.blockingBit=e}else if(1===this.blockingBit){S(!t);if(1!==n.readBits(1))return null}else{if(0!==this.blockingBit)throw new Error("Invalid blocking bit");S(!t);if(0!==n.readBits(1))return null}const s=(e=>0===e?null:1===e?192:e>=2&&e<=5?144*c(2,e):6===e?"uncommon-u8":7===e?"uncommon-u16":e>=8&&e<=15?c(2,e):null)(n.readBits(4));if(!s)return null;S(this.audioInfo);const a=((e,t)=>{switch(e){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}})(n.readBits(4),this.audioInfo.sampleRate);if(!a)return null;n.readBits(4),n.readBits(3);if(0!==n.readBits(1))return null;const o=(e=>{let t=0;const i=new He(Mo(e,1));for(;1===i.readBits(1);)t++;if(0===t)return i.readBits(7);const r=[],n=t-1,s=new He(Mo(e,n)),a=8-t-1;for(let o=0;oe|t<"uncommon-u16"===t?Lo(e)+1:"uncommon-u8"===t?No(e)+1:"number"===typeof t?t:(J(t),void S(!1)))(e,s),u=((e,t)=>"uncommon-u16"===t?Lo(e):"uncommon-u16-10"===t?10*Lo(e):"uncommon-u8"===t?No(e):"number"===typeof t?t:null)(e,a);if(null===u)return null;if(u!==this.audioInfo.sampleRate)return null;const d=e.filePos-i,h=No(e);e.skip(-d),e.skip(-1);const f=(e=>{let t=0;for(const i of e){t^=i;for(let e=0;e<8;e++)0!==(128&t)?t=t<<1^7:t<<=1,t&=255}return t})(Mo(e,d));return h!==f?null:{num:o,blockSize:l,sampleRate:u}}advanceReader(){return p(this,null,function*(){yield this.readMetadata(),S(null!==this.lastLoadedPos),S(this.audioInfo);const e=this.lastLoadedPos,t=yield this.readNextFlacFrame({startPos:e,isFirstPacket:0===this.loadedSamples.length});if(!t)return void(this.lastSampleLoaded=!0);const i=this.loadedSamples[this.loadedSamples.length-1],r={blockOffset:i?i.blockOffset+i.blockSize:0,blockSize:t.blockSize,byteOffset:e,byteSize:t.size};this.lastLoadedPos=this.lastLoadedPos+t.size,this.loadedSamples.push(r),t.isLastFrame&&(this.lastSampleLoaded=!0)})}}class Dn{constructor(e){this.demuxer=e}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return S(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return S(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return re}getTimeResolution(){return S(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return p(this,null,function*(){return S(this.demuxer.audioInfo),0===this.demuxer.audioInfo.totalSamples?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate})}getLiveRefreshInterval(){return p(this,null,function*(){return null})}getDisposition(){return d({},We)}getDecoderConfig(){return p(this,null,function*(){return S(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}})}getPacket(e,t){return p(this,null,function*(){if(S(this.demuxer.audioInfo),e<0)return null;const i=yield this.demuxer.readingMutex.acquire();try{for(;;){const i=K(this.demuxer.loadedSamples,e,e=>e.blockOffset/this.demuxer.audioInfo.sampleRate);if(-1===i){yield this.demuxer.advanceReader();continue}const r=this.demuxer.loadedSamples[i],n=r.blockOffset/this.demuxer.audioInfo.sampleRate;if(!(n+r.blockSize/this.demuxer.audioInfo.sampleRate<=e))return this.getPacketAtIndex(i,t);if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,t);yield this.demuxer.advanceReader()}}finally{i()}})}getNextPacket(e,t){return p(this,null,function*(){const i=yield this.demuxer.readingMutex.acquire();try{const i=e.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&i>=this.demuxer.loadedSamples.length)return null;for(;i>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(i,t)}finally{i()}})}getKeyPacket(e,t){return this.getPacket(e,t)}getNextKeyPacket(e,t){return this.getNextPacket(e,t)}getPacketAtIndex(e,t){return p(this,null,function*(){const i=this.demuxer.loadedSamples[e];if(!i)return null;let r;if(t.metadataOnly)r=Di;else{let e=this.demuxer.reader.requestSlice(i.byteOffset,i.byteSize);if(Pe(e)&&(e=yield e),!e)return null;r=Mo(e,i.byteSize)}S(this.demuxer.audioInfo);const n=i.blockOffset/this.demuxer.audioInfo.sampleRate,s=i.blockSize/this.demuxer.audioInfo.sampleRate;return new Mi(r,"key",n,s,e,i.byteSize)})}getFirstPacket(e){return p(this,null,function*(){for(;0===this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)yield this.demuxer.advanceReader();return this.getPacketAtIndex(0,e)})}}const Mn=9e4,Nn=c(2,33),On=188,Ln="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",zn=new Set([133,134,162]),Un=new Set;class qn extends Ai{constructor(e){super(e),this.metadataPromise=null,this.elementaryStreams=[],this.trackBackingEntries=[],this.packetOffset=0,this.packetStride=-1,this.sectionEndPositions=[],this.seekChunkSize=5242880,this.minReferencePointByteDistance=-1,this.timestampWrapInfo=null,this.reader=e._reader}readMetadata(){return p(this,null,function*(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>p(this,null,function*(){let e=this.reader.requestSlice(0,205);Pe(e)&&(e=yield e),S(e);const t=Mo(e,205);if(71===t[0]&&71===t[188])this.packetOffset=0,this.packetStride=On;else if(71===t[0]&&71===t[204])this.packetOffset=0,this.packetStride=204;else{if(71!==t[4]||71!==t[196])throw new Error("Unreachable.");this.packetOffset=4,this.packetStride=192}this.minReferencePointByteDistance=256*this.packetStride;let i=this.packetOffset,r=null,n=!1,s=!1;for(;;){const e=yield this.readPacketHeader(i);if(!e)break;if(0===e.payloadUnitStartIndicator){i+=this.packetStride;continue}if(s&&!this.elementaryStreams.some(t=>t.pid===e.pid)){i+=this.packetStride;continue}const t=yield this.readSection(i,!0,!s);if(!t)break;const a=3,o=32;let l=!1;if(!s&&0!==t.pid){if(!(0===t.payload[0]&&0===t.payload[1]&&1===t.payload[2])){const e=new He(t.payload),i=e.readAlignedByte();e.skipBits(8*i);l=2===e.readBits(8)}}if(0!==t.pid||n)if(t.pid!==r&&!l||s){const e=this.elementaryStreams.find(e=>e.pid===t.pid);e:if(e&&!e.initialized){const i=Hn(this,t,!0);if(!i)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${e.pid}`);if(e.firstSection=t,e.canBeTrustedWithKeyPackets=1===t.randomAccessIndicator,this.input._initInput){const i=(yield this.input._initInput._getDemuxer()).elementaryStreams.find(i=>i.pid===t.pid&&i.info.codec===e.info.codec);if(i){e.info=i.info,e.initialized=!0;break e}}const r=new $n(e,i);if("video"===e.info.type){for(;;){if(r.suppliedPacket=null,yield r.markNextPacket(),"avc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(e.info.avcCodecInfo=ct(r.suppliedPacket.data),!e.info.avcCodecInfo)continue;const t=e.info.avcCodecInfo.sequenceParameterSets[0];S(t);const i=ft(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight;const n=i.pixelAspectRatio.num,s=i.pixelAspectRatio.den;n>0&&s>0&&(n>s?(e.info.squarePixelWidth=Math.round(e.info.width*n/s),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*s/n))),e.info.colorSpace={primaries:A[i.colourPrimaries],transfer:M[i.transferCharacteristics],matrix:O[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}if("hevc"===e.info.codec){if(!r.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(e.info.hevcCodecInfo=bt(r.suppliedPacket.data),!e.info.hevcCodecInfo)continue;const t=e.info.hevcCodecInfo.arrays.find(e=>e.nalUnitType===Ze.SPS_NUT).nalUnits[0];S(t);const i=yt(t);e.info.width=i.displayWidth,e.info.height=i.displayHeight,i.pixelAspectRatio.num>i.pixelAspectRatio.den?(e.info.squarePixelWidth=Math.round(e.info.width*i.pixelAspectRatio.num/i.pixelAspectRatio.den),e.info.squarePixelHeight=e.info.height):(e.info.squarePixelWidth=e.info.width,e.info.squarePixelHeight=Math.round(e.info.height*i.pixelAspectRatio.den/i.pixelAspectRatio.num)),e.info.colorSpace={primaries:A[i.colourPrimaries],transfer:M[i.transferCharacteristics],matrix:O[i.matrixCoefficients],fullRange:!!i.fullRangeFlag},e.info.reorderSize=i.maxDecFrameBuffering;break}throw new Error("Unhandled.")}e.info.decoderConfig={codec:gi({width:e.info.width,height:e.info.height,codec:e.info.codec,codecDescription:null,colorSpace:e.info.colorSpace,avcType:1,avcCodecInfo:e.info.avcCodecInfo,hevcCodecInfo:e.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:e.info.width,codedHeight:e.info.height,colorSpace:e.info.colorSpace},e.info.width===e.info.squarePixelWidth&&e.info.height===e.info.squarePixelHeight||(e.info.decoderConfig.displayAspectWidth=e.info.squarePixelWidth,e.info.decoderConfig.displayAspectHeight=e.info.squarePixelHeight),e.initialized=!0}else{if(yield r.markNextPacket(),!r.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${e.pid}`);if("aac"===e.info.codec){const t=Ao.tempFromBytes(r.suppliedPacket.data),i=En(t);if(!i)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");e.info.aacCodecInfo={isMpeg2:!1,objectType:i.objectType},e.info.numberOfChannels=je[i.channelConfiguration],e.info.sampleRate=Ve[i.samplingFrequencyIndex]}else if("mp3"===e.info.codec){const t=Wo(Ao.tempFromBytes(r.suppliedPacket.data)),i=Bi(t,r.suppliedPacket.data.byteLength);if(!i.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");e.info.numberOfChannels=Fi(i.header.channel),e.info.sampleRate=i.header.sampleRate}else if("ac3"===e.info.codec){const t=Wt(r.suppliedPacket.data);if(!t)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(3===t.fscod)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=qt[t.acmod]+t.lfeon,e.info.sampleRate=Ge[t.fscod]}else if("eac3"===e.info.codec){const t=jt(r.suppliedPacket.data);if(!t)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");const i=Kt(t);if(null===i)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");e.info.numberOfChannels=Xt(t),e.info.sampleRate=i}else{if("dts"!==e.info.codec)throw new Error("Unhandled.");{const t=ii(r.suppliedPacket.data);if(!t)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");e.info.numberOfChannels=t.numberOfChannels,e.info.sampleRate=t.sampleRate,t.core&&(e.info.dtsFormat=t.hasExtensions?"dtsh":"dtsc")}}e.info.decoderConfig={codec:yi({codec:e.info.codec,codecDescription:null,aacCodecInfo:e.info.aacCodecInfo,dtsFormat:e.info.dtsFormat}),numberOfChannels:e.info.numberOfChannels,sampleRate:e.info.sampleRate},e.initialized=!0}}}else{const e=new He(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(12);const r=e.readBits(12);e.skipBits(43),e.readBits(13),e.skipBits(6);const n=e.readBits(10),l=e.pos+8*n;let c=!1;for(;e.pos=4){const t=e.readBits(32);c||(c=1212435798===t||1212436562===t)}e.pos=r}for(e.pos=l;8*(r+a)-e.pos>o;){const t=e.readBits(8);e.skipBits(3);const i=e.readBits(13);e.skipBits(6);const r=e.readBits(10),n=e.pos+8*r;let s=!1,a=!1,o=!1;for(;e.pos=4){const t=e.readBits(32);o||(o=1146376960===(4294967040&t))}e.pos=r}let l=null;const u=c&&zn.has(t)?130:t;switch(u){case 27:case 36:l={type:"video",codec:27===t?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let e;e=3===u||4===u?"mp3":15===u?"aac":129===u?"ac3":135===u?"eac3":"dts",l={type:"audio",codec:e,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:a?l={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:s?l={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:o&&(l={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:Un.has(t)||(ze._warn(`Note: MPEG-TS streams with stream_type 0x${t.toString(16)} are not currently supported.`),Un.add(t))}l&&this.elementaryStreams.push({demuxer:this,pid:i,streamType:t,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:l,referencePesPackets:[]})}s=!0}else{const e=new He(t.payload),i=e.readAlignedByte();e.skipBits(8*i),e.skipBits(14);const s=e.readBits(10);for(e.skipBits(40);8*(s+a)-e.pos>o;){const t=e.readBits(16);e.skipBits(3);const i=e.readBits(13);if(0!==t){if(null!==r)throw new Error("Only files with a single program are supported.");r=i}}if(null===r)throw new Error("Program Association Table must link to a Program Map Table.");n=!0}if(s&&this.elementaryStreams.every(e=>e.initialized))break;i+=this.packetStride}if(!s){if(!n)throw new Error("No Program Association Table found in the file.");throw new Error("No Program Map Table found in the file.")}for(const a of this.elementaryStreams)a.initialized&&("video"===a.info.type?this.trackBackingEntries.push(new jn(a)):this.trackBackingEntries.push(new Kn(a)))}))()})}getTrackBackings(){return p(this,null,function*(){return yield this.readMetadata(),this.trackBackingEntries})}getMetadataTags(){return p(this,null,function*(){return{}})}getMimeType(){return p(this,null,function*(){yield this.readMetadata();return(e=>{let t="video/MP2T";const i=[...new Set(e.filter(Boolean))];return i.length>0&&(t+=`; codecs="${i.join(", ")}"`),t})(yield Promise.all(this.trackBackingEntries.map(e=>e.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null}))))})}readSection(e,t,i=!1){return p(this,null,function*(){let r=e,n=e;const s=[];let a,o=0,l=null,c=!0,u=0;for(;;){const e=yield this.readPacket(n);if(n+=this.packetStride,!e)break;if(l){if(e.pid!==l.pid){if(i)break;continue}if(1===e.payloadUnitStartIndicator)break}else{if(0===e.payloadUnitStartIndicator)break;l=e}const a=!!(2&e.adaptationFieldControl),d=!!(1&e.adaptationFieldControl);let h=0;if(a&&(h=1+e.body[0],e===l&&h>1&&(u=e.body[1]>>6&1)),d&&(0===h?(s.push(e.body),o+=e.body.byteLength):(s.push(e.body.subarray(h)),o+=e.body.byteLength-h)),r=n,!t&&o>=64){c=!1;break}if(-1!==j(this.sectionEndPositions,r,e=>e)){c=!1;break}}if(c){const e=K(this.sectionEndPositions,r,e=>e);this.sectionEndPositions.splice(e+1,0,r)}if(!l)return null;if(1===s.length)a=s[0];else{const e=s.reduce((e,t)=>e+t.length,0);a=new Uint8Array(e);let t=0;for(const i of s)a.set(i,t),t+=i.length}return{startPos:e,endPos:t?r:null,pid:l.pid,payload:a,randomAccessIndicator:u}})}readPacketHeader(e){return p(this,null,function*(){let t=this.reader.requestSlice(e,4);if(Pe(t)&&(t=yield t),!t)return null;if(71!==No(t))throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const i=Lo(t);return{payloadUnitStartIndicator:i>>14&1,pid:8191&i,adaptationFieldControl:No(t)>>4&3}})}readPacket(e){return p(this,null,function*(){let t=this.reader.requestSlice(e,On);if(Pe(t)&&(t=yield t),!t)return null;const i=Mo(t,On);if(71!==i[0])throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");const r=(i[1]<<8)+i[2];return{payloadUnitStartIndicator:r>>14&1,pid:8191&r,adaptationFieldControl:i[3]>>4&3,body:i.subarray(4)}})}normalizeTimestamp(e){if(!this.timestampWrapInfo){const t=54e5;this.timestampWrapInfo={reference:e-t,offset:e>=Nn-t?-Nn:Nn}}const{reference:t,offset:i}=this.timestampWrapInfo;return i<0&&e>=t||i>0&&e{if(t.payload.byteLength<3)return null;const r=new He(t.payload);if(1!==r.readBits(24))return null;const n=r.readBits(8);if(r.skipBits(16),188===n||190===n||191===n||240===n||241===n||255===n||242===n||248===n)return null;r.skipBits(8);const s=r.readBits(2);r.skipBits(14);let a=null;if(2===s||3===s)a=0,r.skipBits(4),a+=r.readBits(3)*(1<<30),r.skipBits(1),a+=32768*r.readBits(15),r.skipBits(1),a+=r.readBits(15),a=e.normalizeTimestamp(a);else if(i)throw new Error(Ln);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:a,randomAccessIndicator:t.randomAccessIndicator}},Hn=(e,t,i)=>{S(null!==t.endPos);const r=Wn(e,t,i);if(!r)return null;const n=new He(t.payload);n.skipBits(32);const s=n.readBits(16);n.skipBits(16);const a=n.readBits(8),o=n.pos+8*a;n.pos=o;const l=o/8;S(Number.isInteger(l));const c=t.payload.subarray(l,s>0?6+s:t.payload.byteLength);return h(d({},r),{data:c})};class Vn{constructor(e){this.elementaryStream=e,this.packetBuffers=new WeakMap,this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){const e=this.elementaryStream.demuxer,t=this.elementaryStream.info.type;let i=0;for(const r of e.trackBackingEntries)if(r.getType()===t&&i++,S(r instanceof Vn),r.elementaryStream===this.elementaryStream)break;return i}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return re}getDisposition(){return h(d({},We),{primary:!1})}getTimeResolution(){return Mn}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return BigInt("1")}getBitrate(){return null}getAverageBitrate(){return null}getDurationFromMetadata(){return p(this,null,function*(){return null})}getLiveRefreshInterval(){return p(this,null,function*(){return null})}createEncodedPacket(e,t,i){let r;return r=this.allPacketsAreKeyPackets()||1===e.randomAccessIndicator?"key":"delta",new Mi(i.metadataOnly?Di:e.data,r,e.pts/Mn,Math.max(t/Mn,0),e.sequenceNumber,e.data.byteLength)}getFirstPacket(e){return p(this,null,function*(){const t=this.elementaryStream.firstSection;S(t);const i=Hn(this.elementaryStream.demuxer,t,!0);S(i);const r=new $n(this.elementaryStream,i),n=new Gn(this,r),s=yield n.readNext();if(!s)return null;const a=this.createEncodedPacket(s.packet,s.duration,e);return this.packetBuffers.set(a,n),this.packetSectionStarts.set(a,s.packet.sectionStartPos),a})}getNextPacket(e,t){return p(this,null,function*(){let i=this.packetBuffers.get(e);if(i){const r=yield i.readNext();if(!r)return null;this.packetBuffers.delete(e);const n=this.createEncodedPacket(r.packet,r.duration,t);return this.packetBuffers.set(n,i),this.packetSectionStarts.set(n,r.packet.sectionStartPos),n}const r=this.packetSectionStarts.get(e);if(void 0===r)throw new Error("Packet was not created from this track.");const n=this.elementaryStream.demuxer,s=yield n.readSection(r,!0);S(s);const a=Hn(n,s,!0);S(a);const o=new $n(this.elementaryStream,a);i=new Gn(this,o);const l=e.sequenceNumber;for(;;){const e=yield i.readNext();if(!e)return null;if(e.packet.sequenceNumber>l){const r=this.createEncodedPacket(e.packet,e.duration,t);return this.packetBuffers.set(r,i),this.packetSectionStarts.set(r,e.packet.sectionStartPos),r}}})}getNextKeyPacket(e,t){return p(this,null,function*(){let i=e;for(;;){if(i=yield this.getNextPacket(i,t),!i)return null;if("key"===i.type)return i}})}getPacket(e,t){return this.doPacketLookup(e,!1,t)}getKeyPacket(e,t){return this.doPacketLookup(e,!0,t)}doPacketLookup(e,t,i){return p(this,null,function*(){var r,n,s,a,o,l;const c=ne(e*Mn),u=this.elementaryStream.demuxer,{reader:d,seekChunkSize:h}=u,f=this.elementaryStream.pid,m=(e,t,i)=>p(this,null,function*(){let r=e;for(;re.pts),v=-1!==T?b[T]:null;if(v&&c-v.pts<45e3)y=v.sectionStartPos;else{let e=0;if(null!==d.fileSize){const t=Math.ceil(d.fileSize/h);if(t>1){let i=0,r=t-1;for(e=i;i<=r;){const t=Math.floor((i+r)/2),n=oe(t*h,u.packetStride)+k.sectionStartPos,s=n+h,a=yield m(n,s,!1);a?a.pesPacketHeader.pts<=c?(e=t,i=t+1):r=t-1:r=t-1}}}y=oe(e*h,u.packetStride)+k.sectionStartPos}const w=yield m(y,null!=(r=d.fileSize)?r:1/0,!1);let I=null!=(n=null==w?void 0:w.pesPacketHeader)?n:null;I||(I=k);const x=this.getReorderSize(),C=(e,t)=>p(this,null,function*(){var r,n;const s=yield u.readSection(e,!0);S(s);const a=Hn(u,s,!0);S(a);const o=new $n(this.elementaryStream,a),l=new Gn(this,o);for(;;){if((null!=(n=null==(r=P(l.presentationOrderPackets))?void 0:r.pts)?n:-1/0)>=c)break;if(!(yield l.readNextPacket()))break}const d=Y(l.presentationOrderPackets,t);if(-1===d)return null;const h=l.presentationOrderPackets[d],f=0===d?0:h.pts-l.presentationOrderPackets[d-1].pts;for(;l.decodeOrderPackets[0]!==h;)l.decodeOrderPackets.shift();l.lastDuration=f;const m=yield l.readNext();S(m);const p=this.createEncodedPacket(m.packet,m.duration,i);return this.packetBuffers.set(p,l),this.packetSectionStarts.set(p,m.packet.sectionStartPos),p});if(!t||this.allPacketsAreKeyPackets()){e:for(;;){let e=I.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Wn(u,t,!1);if(e&&null!==e.pts){if(e.pts>c)break e;I=e,Xn(this.elementaryStream,I);break}}}e+=u.packetStride}}e:for(let e=0;e=u.packetOffset;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,!1);if(t){const e=Wn(u,t,!1);if(e&&null!==e.pts){I=e;break}}}e-=u.packetStride}}return C(I.sectionStartPos,e=>e.pts<=c)}{let e=y,t=null;const i=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let r=null;const n=e<=k.sectionStartPos;let p,y=null;if(n)p=k,y=g;else{const t=yield m(e,null!=(s=d.fileSize)?s:1/0,i);p=null!=(a=null==t?void 0:t.pesPacketHeader)?a:null,y=null!=(o=null==t?void 0:t.section)?o:null}let b=!1,T=0;e:for(;p&&!(null!==t&&p.sectionStartPos>=t);){if(p.pts<=c){let e;if(this.elementaryStream.canBeTrustedWithKeyPackets)e=1===p.randomAccessIndicator;else{S(y);const t=Hn(u,y,!0);S(t);const i=new $n(this.elementaryStream,t);yield i.markNextPacket(),e=1===(null==(l=i.suppliedPacket)?void 0:l.randomAccessIndicator)}e&&(r=p)}if(p.pts>c&&(b=!0),b&&(T++,T>x))break;let e=p.sectionStartPos+u.packetStride;for(;;){const t=yield u.readPacketHeader(e);if(!t)break e;if(t.pid===f&&1===t.payloadUnitStartIndicator){const t=yield u.readSection(e,i);if(t){const e=Wn(u,t,!1);if(e&&null!==e.pts){p=e,y=t,Xn(this.elementaryStream,p);break}}}e+=u.packetStride}}if(r){let e=r;if(0===T)e:for(let r=0;r=u.packetOffset;){const r=yield u.readPacketHeader(t);if(!r)break e;if(r.pid===f&&1===r.payloadUnitStartIndicator){const r=yield u.readSection(t,i);if(r){const t=Wn(u,r,!1);if(t&&null!==t.pts){e=t;break}}}t-=u.packetStride}}const t=yield C(e.sectionStartPos,e=>e.pts<=c&&1===e.randomAccessIndicator);return S(t),t}if(n)return null;t=e,e=Math.max(oe(e-k.sectionStartPos-h,u.packetStride)+k.sectionStartPos,k.sectionStartPos)}}})}}class jn extends Vn{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getRotation(){return 0}getColorSpace(){return p(this,null,function*(){return this.elementaryStream.info.colorSpace})}canBeTransparent(){return p(this,null,function*(){return!1})}getDecoderConfig(){return p(this,null,function*(){return S(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}}class Kn extends Vn{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}getDecoderConfig(){return p(this,null,function*(){return S(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig})}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}}const Xn=(e,t)=>{const i=e.referencePesPackets,r=K(i,t.sectionStartPos,e=>e.sectionStartPos);if(r>=0){const n=i[r];if(t.pts<=n.pts)return!1;const s=e.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-n.sectionStartPos=e?e:this.bufferData(e-t).then(()=>Math.min(this.endPos-this.currentPos,e))}getCurrentPesPacket(){const e=this.pesPackets[this.currentPesPacketIndex];return S(e),e}bufferData(e){return p(this,null,function*(){const t=this.endPos+e;for(;this.endPos=c)break;u=t;const r=o+u;if(u+3>=c){this.seekTo(r);break}const d=l[u+1],h=l[u+2],f=l[u+3];let m=0;if(0===d&&0===h&&1===f?m=4:0===d&&1===h&&(m=3),0===m){u++;continue}const p=r;null!=n||(n=p);const g=u+m,k=g+i,y=6;if(k+("avc"===e?y:1)>c){this.seekTo(r);break}const b=l[g];let T,v,S;if("avc"===e)T=nt(b),v=T===Ye.NON_IDR_SLICE||T===Ye.SLICE_DPA||T===Ye.IDR,S=T===Ye.SEI||T===Ye.SPS||T===Ye.PPS||T===Ye.AUD;else{T=kt(b);if(((1&b)<<5|l[g+1]>>3)>0){u+=m;continue}v=T<=Ze.RASL_R||T>=Ze.BLA_W_LP&&T<=21,S=T>=Ze.VPS_NUT&&T<=37||T===Ze.PREFIX_SEI_NUT||T>=41&&T<=44||T>=48&&T<=55}let w=!1;if(v){let t;if("avc"===e){const e=l.subarray(k,k+y),i=I(new He(e));t=!s||i<=a,a=i}else t=l[k]>>7===1;t&&(s?w=!0:s=!0)}else S&&s&&(w=!0);if(w){const e=p-n;return this.seekTo(n),this.supplyPacket(e,0)}u+=m}if(rn){const e=this.endPos-n;return this.seekTo(n),this.supplyPacket(e,0)}}else{const n=r.info.codec,s=128;for(;;){let a=this.ensureBuffered(s);Pe(a)&&(a=yield a);const o=this.currentPos;for(;this.currentPos-o>6,a=63&i[4];if(3===n||a>37){this.seekTo(e+1);continue}const o=Ht[3*a+n];S(void 0!==o),this.seekTo(e),t=this.ensureBuffered(o),Pe(t)&&(t=yield t);const l=Math.round(13824e4/r.info.sampleRate);return this.supplyPacket(t,l)}if("eac3"===n){if(11!==s)continue;this.skip(-1);const e=this.currentPos;let t=this.ensureBuffered(5);if(Pe(t)&&(t=yield t),t<5)return;const i=this.readBytes(5);if(11!==i[0]||119!==i[1]){this.seekTo(e+1);continue}const n=2*(((7&i[2])<<8|i[3])+1),a=3===i[4]>>6?3:i[4]>>4&3,o=Vt[a];this.seekTo(e),t=this.ensureBuffered(n),Pe(t)&&(t=yield t);const l=256*o,c=Math.round(l*Mn/r.info.sampleRate);return this.supplyPacket(t,c)}if("dts"===n){if(127!==s&&100!==s)continue;this.skip(-1);const n=this.currentPos;let a=this.ensureBuffered(18);if(Pe(a)&&(a=yield a),a<18)return;const o=this.readBytes(18),l=ni(o);let c=l?null:si(o);if(!l&&!c){this.seekTo(n+1);continue}if(c&&!c.asset){this.seekTo(n);const t=Math.min(c.frameSize,4096);let i=this.ensureBuffered(t);Pe(i)&&(i=yield i),c=null!=(e=si(this.readBytes(i)))?e:c}let u=l?l.frameSize:c.frameSize;if(l){let e=4*Math.ceil(l.frameSize/4);for(;;){this.seekTo(n);const t=e+10;let i=this.ensureBuffered(t);if(Pe(i)&&(i=yield i),i=0)}readNext(){return p(this,null,function*(){if(0===this.decodeOrderPackets.length){if(!(yield this.readNextPacket()))return null}yield this.ensureCurrentPacketHasNext();const e=this.decodeOrderPackets[0],t=this.presentationOrderPackets.indexOf(e);let i;if(S(-1!==t),t===this.presentationOrderPackets.length-1)i=this.lastDuration;else{i=this.presentationOrderPackets[t+1].pts-e.pts,this.lastDuration=i}for(this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){const e=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(e))break;this.presentationOrderPackets.shift()}return{packet:e,duration:i}})}readNextPacket(){return p(this,null,function*(){if(this.reachedEnd)return!1;let e;return this.context.suppliedPacket||(yield this.context.markNextPacket()),e=this.context.suppliedPacket,this.context.suppliedPacket=null,e?(this.decodeOrderPackets.push(e),this.processPacketThroughReorderBuffer(e),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)})}ensureCurrentPacketHasNext(){return p(this,null,function*(){const e=this.decodeOrderPackets[0];for(S(e);;){const t=this.presentationOrderPackets.indexOf(e);if(-1!==t&&t<=this.presentationOrderPackets.length-2)break;if(!(yield this.readNextPacket()))break}})}processPacketThroughReorderBuffer(e){if(this.reorderBuffer.push(e),this.reorderBuffer.length>this.reorderSize){let e=0;for(let i=1;ie.pts-t.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}}const Qn="application/vnd.apple.mpegurl",Yn="#EXT-X-STREAM-INF:",Jn="#EXT-X-I-FRAME-STREAM-INF:",Zn="#EXT-X-MEDIA:",es="#EXTINF:",ts="#EXT-X-MAP:",is="#EXT-X-KEY:",rs="#EXT-X-MEDIA-SEQUENCE:",ns="#EXT-X-BYTERANGE:",ss="#EXT-X-PROGRAM-DATE-TIME:",as="#EXT-X-TARGETDURATION:",os="#EXT-X-PLAYLIST-TYPE:",ls=e=>0===e.length||e.startsWith("#")&&!e.startsWith("#EXT");class cs{constructor(e){this._attributes={};let t="",i="",r=!1,n=!1;for(let s=0;sp(this,null,function*(){const e=[];if(this.trackDeclarations){for(const t of this.trackDeclarations)if("video"===t.type){const i=Re(e,e=>"video"===e.getType())+1;e.push(new hs(this,t,i))}else if("audio"===t.type){const i=Re(e,e=>"audio"===e.getType())+1;e.push(new fs(this,t,i))}}else{if(this.firstSegment=yield this.getFirstSegment({}),!this.firstSegment)return[];const t=this.getInputForSegment(this.firstSegment),i=yield t.getTracks();for(const r of i)if("video"===r.type){const t=Re(e,e=>"video"===e.getType())+1;e.push(new hs(this,{id:e.length+1,type:"video"},t))}else if("audio"===r.type){const t=Re(e,e=>"audio"===e.getType())+1;e.push(new fs(this,{id:e.length+1,type:"audio"},t))}}return e}))()})}getFirstTimestampForInput(e){return p(this,null,function*(){const t=this.firstTimestampCache.get(e);if(void 0!==t)return t;const i=yield e.getFirstTimestamp();return this.firstTimestampCache.set(e,i),i})}getMediaOffset(e,t){return p(this,null,function*(){var i;const r=null!=(i=e.firstSegment)?i:e;let n;if(this.firstSegmentFirstTimestamps.has(r))n=this.firstSegmentFirstTimestamps.get(r);else{const e=this.getInputForSegment(r);n=yield this.getFirstTimestampForInput(e),this.firstSegmentFirstTimestamps.set(r,n)}if(r===e)return r.timestamp-n;const s=yield this.getFirstTimestampForInput(t),a=e.timestamp-r.timestamp,o=s-n-a;return Math.abs(o)<=Math.min(.25,a)?r.timestamp-n:e.timestamp-s})}dispose(){for(const e of this.inputCache)e.input.dispose();this.inputCache.length=0}}class ds{constructor(e,t,i){this.packetInfos=new WeakMap,this.hydrationPromise=null,this.firstInputTrack=null,this.firstSegment=null,this.segmentedInput=e,this.decl=t,this.number=i}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>p(this,null,function*(){var e,t;if(null!=(e=this.segmentedInput).firstSegment||(e.firstSegment=yield this.segmentedInput.getFirstSegment({})),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let i=this.segmentedInput.firstSegment,r=null;for(;i;){const e=this.segmentedInput.getInputForSegment(i);if(r=null!=(t=(yield e.getTracks()).find(e=>e.type===this.decl.type&&e.number===this.number))?t:null,r)break;i=yield this.segmentedInput.getNextSegment(i,{})}if(!r)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=r,this.firstSegment=i}))()}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(e){return this.firstInputTrack?e():this.hydrate().then(e)}getDecoderConfig(){return p(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}getHasOnlyKeyPackets(){return this.delegate(()=>{var e,t,i;return null!=(i=null==(t=(e=this.firstInputTrack._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:null})}getPairingMask(){return BigInt("1")}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}isRelativeToUnixEpoch(){return p(this,null,function*(){return yield this.hydrate(),S(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp})}getUnixTimeForTimestamp(e){return this.segmentedInput.getUnixTimeForTimestamp(e)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(e){return this.segmentedInput.getDurationFromMetadata(e)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}createAdjustedPacket(e,t,i){return p(this,null,function*(){S(e.sequenceNumber>=0),S(this.segmentedInput.firstSegment);const r=yield this.segmentedInput.getMediaOffset(t,i.input),n=t.timestamp-this.segmentedInput.firstSegment.timestamp,s=e.clone({timestamp:ae(e.timestamp+r,yield i.getTimeResolution()),sequenceNumber:Math.floor(1e8*n)+e.sequenceNumber});return this.packetInfos.set(s,{segment:t,track:i,sourcePacket:e}),s})}getFirstPacket(e){return p(this,null,function*(){var t;yield this.hydrate(),S(this.firstInputTrack),S(this.firstSegment);let i=this.firstInputTrack,r=this.firstSegment;for(;;){if(i){const t=yield i._backing.getFirstPacket(e);if(t)return this.createAdjustedPacket(t,r,i)}if(r=yield this.segmentedInput.getNextSegment(r,{skipLiveWait:e.skipLiveWait}),!r)break;const n=this.segmentedInput.getInputForSegment(r);i=null!=(t=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number))?t:null}return null})}getNextPacket(e,t){return this._getNextInternal(e,t,!1)}getNextKeyPacket(e,t){return this._getNextInternal(e,t,!0)}_getNextInternal(e,t,i){return p(this,null,function*(){const r=this.packetInfos.get(e);if(!r)throw new Error("Packet was not created from this track.");const n=i?yield r.track._backing.getNextKeyPacket(r.sourcePacket,t):yield r.track._backing.getNextPacket(r.sourcePacket,t);if(n)return this.createAdjustedPacket(n,r.segment,r.track);let s=r.segment;for(;;){const e=yield this.segmentedInput.getNextSegment(s,{skipLiveWait:t.skipLiveWait});if(!e)return null;const i=this.segmentedInput.getInputForSegment(e),n=(yield i.getTracks()).find(e=>e.type===r.track.type&&e.number===r.track.number);if(!n){s=e;continue}const a=yield n._backing.getFirstPacket(t);return a?this.createAdjustedPacket(a,e,n):null}})}getPacket(e,t){return this._getPacketInternal(e,t,!1)}getKeyPacket(e,t){return this._getPacketInternal(e,t,!0)}_getPacketInternal(e,t,i){return p(this,null,function*(){let r=yield this.segmentedInput.getSegmentAt(e,{skipLiveWait:t.skipLiveWait});if(!r)return null;for(yield this.hydrate();r;){const n=this.segmentedInput.getInputForSegment(r),s=(yield n.getTracks()).find(e=>e.type===this.firstInputTrack.type&&e.number===this.firstInputTrack.number);if(!s){r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait});continue}const a=yield this.segmentedInput.getMediaOffset(r,n),o=e-a,l=i?yield s._backing.getKeyPacket(o,t):yield s._backing.getPacket(o,t);if(l)return this.createAdjustedPacket(l,r,s);r=yield this.segmentedInput.getPreviousSegment(r,{skipLiveWait:t.skipLiveWait})}return null})}}class hs extends ds{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelHeight())}getRotation(){return this.delegate(()=>this.firstInputTrack._backing.getRotation())}getColorSpace(){return p(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getColorSpace())})}canBeTransparent(){return p(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.canBeTransparent())})}getDecoderConfig(){return p(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}class fs extends ds{getType(){return"audio"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getNumberOfChannels(){return this.delegate(()=>this.firstInputTrack._backing.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.firstInputTrack._backing.getSampleRate())}getDecoderConfig(){return p(this,null,function*(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())})}}Be();const ms=1/0;"undefined"!==typeof FinalizationRegistry&&new FinalizationRegistry(e=>{e()});class ps extends Ne{constructor(){super(),this._disposed=!1,this._refCount=0,this._usedForHls=!1,this._refFinalizationRegistry=null,this._sizePromise=null,this.onread=null,"undefined"!==typeof FinalizationRegistry&&(this._refFinalizationRegistry=new FinalizationRegistry(e=>{e._decrementRefCount()}))}getSizeOrNull(){return p(this,null,function*(){var e;if(this._disposed)throw new Ro;return null!=(e=this._sizePromise)?e:this._sizePromise=(()=>p(this,null,function*(){let e=this._getFileSize();return void 0!==e||(yield this._read(0,1,0,ms),e=this._getFileSize(),S(void 0!==e)),e}))()})}getSize(){return p(this,null,function*(){if(this._disposed)throw new Ro;const e=yield this.getSizeOrNull();if(null===e)throw new Error("Cannot determine the size of an unsized source.");return e})}slice(e,t){if(!Number.isInteger(e)||e<0)throw new TypeError("offset must be a non-negative integer.");if(void 0!==t&&(!Number.isInteger(t)||t<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new Rs(this,e,t)}_dispatchRead(e,t){var i;null==(i=this.onread)||i.call(this,e,t),this._emit("read",{start:e,end:t})}ref(){return new gs(this)}_incrementRefCount(){this._refCount++}_decrementRefCount(){this._refCount--,0===this._refCount&&(this._dispose(),this._disposed=!0)}}class gs{constructor(e){var t;if(this._freed=!1,e._disposed)throw new Error("Cannot ref a disposed source.");e._incrementRefCount(),null==(t=e._refFinalizationRegistry)||t.register(this,e,this),this._source=e}get source(){if(!this._source)throw new Error("Can't get source; ref has already been freed.");return this._source}get freed(){return this._freed}free(){var e;if(this._freed)throw new Error("Illegal operation: double free on SourceRef.");const t=this.source;S(t._refCount>0),t._decrementRefCount(),null==(e=t._refFinalizationRegistry)||e.unregister(this),this._freed=!0,this._source=null}[Symbol.dispose](){this.freed||this.free()}}class ks extends ps{constructor(e,t){if("string"!==typeof e)throw new TypeError("rootPath must be a string.");if("function"!==typeof t)throw new TypeError("requestHandler must be a function.");super(),this.rootPath=e,this.requestHandler=t}_resolveRequest(e){const t=this.requestHandler(e),i=e=>{var t;if(!(e instanceof ps||e instanceof gs))throw new TypeError("requestHandler must return or resolve to a Source or SourceRef.");const i=e instanceof ps?e.ref():e;return(t=i.source)._usedForHls||(t._usedForHls=this._usedForHls),i};return Pe(t)?t.then(i):i(t)}}const ys=(e,t)=>e.path===t.path;class bs extends ks{constructor(){super(...arguments),this._root=null,this._rootRequest=null}_read(e,t,i,r){if(!this._root){if(!this._rootRequest){const e=this._resolveRequest({path:this.rootPath,isRoot:!0}),t=e=>{const t=e instanceof ps?e.ref():e;return this._root=t,this._rootRequest=null,t};Pe(e)?this._rootRequest=e.then(t):(t(e),S(this._root))}if(this._rootRequest)return this._rootRequest.then(n=>n.source._read(e,t,i,r))}return this._root.source._read(e,t,i,r)}_getFileSize(){if(this._root)return this._root.source._getFileSize()}_dispose(){this._root?this._root.free():this._rootRequest&&this._rootRequest.then(e=>e.free())}}const Ts="undefined"!==typeof FinalizationRegistry?new FinalizationRegistry(e=>{e.cancel().catch(()=>{})}):null;class vs extends ps{constructor(e,t={}){var i;if(!(e instanceof Blob))throw new TypeError("blob must be a Blob.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.maxCacheSize&&(!Ee(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.useStreamReader&&"boolean"!==typeof t.useStreamReader)throw new TypeError("options.useStreamReader, when provided, must be a boolean.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(),this._readers=new WeakMap,this._blob=e,this._options=t,this._orchestrator=new _s({maxCacheSize:null!=(i=t.maxCacheSize)?i:8*c(2,20),maxWorkerCount:4,runWorker:this._runWorker.bind(this),onIdleWorkerRemoved:e=>{const t=this._readers.get(e);t&&(this._readers.delete(e),null==Ts||Ts.unregister(e),t.cancel().catch(()=>{}))},prefetchProfile:Es.fileSystem,handleUnhandledError:t.handleUnhandledError}),this._orchestrator.fileSize=e.size}_getFileSize(){return this._orchestrator.fileSize}_read(e,t,i,r){return this._orchestrator.read(e,t,i,r)}_runWorker(e){return p(this,null,function*(){S(e.strictTarget);let t=this._readers.get(e);if(void 0===t){if("stream"in this._blob&&!ke()&&!1!==this._options.useStreamReader){t=this._blob.slice(e.currentPos).stream().getReader(),null==Ts||Ts.register(e,t,e)}else t=null;this._readers.set(e,t)}for(;e.currentPos{if(t instanceof Error&&(t.message.includes("Failed to fetch")||t.message.includes("Load failed")||t.message.includes("NetworkError when attempting to fetch resource"))&&"undefined"!==typeof window){let e=null;try{"undefined"!==typeof window&&"undefined"!==typeof window.location&&(e=new URL(i instanceof Request?i.url:i,window.location.href).origin)}catch(r){}if(("undefined"===typeof navigator||"boolean"!==typeof navigator.onLine||navigator.onLine)&&null!==e&&e!==window.location.origin)return ze._warn("Request will not be retried because a CORS error was suspected due to different origins. You can modify this behavior by providing your own function for the 'getRetryDelay' option."),null}return Math.min(c(2,e-2),16)},Ps=new Set;class Is extends ks{constructor(e,t={}){var i,r,n,s;if("string"!==typeof e&&!(e instanceof URL)&&!("undefined"!==typeof Request&&e instanceof Request))throw new TypeError("url must be a string, URL or Request.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.requestInit&&(!t.requestInit||"object"!==typeof t.requestInit))throw new TypeError("options.requestInit, when provided, must be an object.");if(void 0!==t.getRetryDelay&&"function"!==typeof t.getRetryDelay)throw new TypeError("options.getRetryDelay, when provided, must be a function.");if(void 0!==t.maxCacheSize&&(!Ee(t.maxCacheSize)||t.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(void 0!==t.parallelism&&(!Number.isInteger(t.parallelism)||t.parallelism<1))throw new TypeError("options.parallelism, when provided, must be a positive number.");if(void 0!==t.fetchFn&&"function"!==typeof t.fetchFn)throw new TypeError("options.fetchFn, when provided, must be a function.");if(void 0!==t.handleUnhandledError&&"function"!==typeof t.handleUnhandledError)throw new TypeError("options.handleUnhandledError, when provided, must be a function.");super(e instanceof Request?e.url:e instanceof URL?e.href:e,e=>new Is(e.path,this._options)),this._offset=0,this._length=null,this._fileSizeDetermined=!1,this._sequentialBacking=null,this._url=e,this._options=t,this._getRetryDelay=null!=(i=t.getRetryDelay)?i:ws,this._requestInit=d({},t.requestInit);let a=null;if(null==(r=t.requestInit)?void 0:r.headers){const e=d({},fe(t.requestInit.headers)),i=Object.keys(e).find(e=>"range"===e.toLowerCase());void 0!==i&&(a=e[i],delete e[i],this._requestInit.headers=e)}if(e instanceof Request){const t=e.headers.get("Range");if(null!==t){null!=a||(a=t);const i=new Request(e);i.headers.delete("Range"),this._url=i}}if(null!==a){const e=Cs(a);e&&(this._offset=e.offset,this._length=e.length)}this._orchestrator=new _s({maxCacheSize:null!=(n=t.maxCacheSize)?n:64*c(2,20),maxWorkerCount:null!=(s=t.parallelism)?s:2,runWorker:this._runWorker.bind(this),prefetchProfile:Es.network,handleUnhandledError:t.handleUnhandledError})}_getFileSize(){var e;if(!this._fileSizeDetermined)return null!==this._length?this._length:void 0;const t=this._sequentialBacking?this._sequentialBacking._endIndex:this._orchestrator.fileSize;return null===t?null!==this._length?this._length:null:ie(t-this._offset,0,null!=(e=this._length)?e:1/0)}_read(e,t,i,r){var n;if(null!==this._length&&t>this._length)return null;const s=this._offset,a=this._sequentialBacking?this._sequentialBacking._read(s+e,s+t):this._orchestrator.read(s+e,s+t,Math.max(s+i,s),s+Math.min(r,null!=(n=this._length)?n:1/0)),o=e=>e?(e.offset-=this._offset,e):null;return Pe(a)?a.then(o):o(a)}_runWorker(e){return p(this,null,function*(){for(var t;;){const r=new AbortController,n=yield me(null!=(t=this._options.fetchFn)?t:fetch,this._url,he(this._requestInit,{headers:{Range:`bytes=${e.currentPos}-`},signal:r.signal}),this._getRetryDelay,()=>this._disposed);if(!n.ok)throw new Error(`Error fetching ${String(this._url)}: ${n.status} ${n.statusText}`);n.redirected&&(this.rootPath=n.url);e:if(null===this._orchestrator.fileSize&&(206===n.status||"basic"===n.type&&!n.headers.has("Content-Encoding"))){const t=n.headers.get("Content-Range");if(t){const e=/\/(\d+)/.exec(t);if(e){this._orchestrator.supplyFileSize(Number(e[1]));break e}}const i=n.headers.get("Content-Length");if(i){const t=206===n.status?e.currentPos:0;this._orchestrator.supplyFileSize(t+Number(i))}}if(this._fileSizeDetermined=!0,!n.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");if(206!==n.status){if(this._sequentialBacking)return void n.body.cancel();if(!this._usedForHls){const e=new URL(this._url instanceof Request?this._url.url:this._url,"undefined"!==typeof window?window.location.href:void 0);"null"===e.origin||e.pathname.endsWith(".m3u8")||e.pathname.endsWith(".m3u")||Ps.has(e.origin)||(ze._warn(`HTTP server (origin ${e.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. Alternatively, set maxCacheSize to Infinity in the UrlSource options to keep the entire resource in memory.`),Ps.add(e.origin))}return void this._transitionToSequentialMode(n.body)}const s=n.body.getReader();for(;;){if(e.currentPos>=e.targetPos||e.aborted)return r.abort(),void this._orchestrator.signalWorkerStoppedRunning(e);let t;try{t=yield s.read()}catch(i){if(this._disposed)throw i;const e=this._getRetryDelay(1,i,this._url);if(null!==e){ze._error("Error while reading response stream. Attempting to resume.",i),yield Me(1e3*e);break}throw i}if(e.aborted)continue;const{done:n,value:a}=t;if(n){if(e.currentPos>=e.targetPos)return void this._orchestrator.onWorkerFinished(e);if(e.strictTarget)break;return void this._orchestrator.onWorkerFinished(e)}this._dispatchRead(e.currentPos,e.currentPos+a.length),this._orchestrator.supplyWorkerData(e,a)}}})}_transitionToSequentialMode(e){let t=e.getReader(),i=0,r=0;const n=new ReadableStream({pull:e=>p(this,null,function*(){for(var n;;){let a;try{a=yield t.read()}catch(s){if(this._disposed)throw s;const e=this._getRetryDelay(1,s,this._url);if(null===e)throw s;ze._error("Error while reading response stream. Attempting to resume.",s),yield Me(1e3*e);const a=yield me(null!=(n=this._options.fetchFn)?n:fetch,this._url,he(this._requestInit,{headers:{Range:`bytes=${i}-`}}),this._getRetryDelay,()=>this._disposed);if(!a.ok)throw new Error(`Error fetching ${String(this._url)}: ${a.status} ${a.statusText}`);if(!a.body)throw new Error("Missing HTTP response body stream. The used fetch function must provide the response body as a ReadableStream.");t=a.body.getReader(),r=206===a.status?0:i;continue}if(a.done)return void e.close();let o=a.value;if(r>0){const e=Math.min(r,o.length);r-=e,o=o.subarray(e)}if(0!==o.length)return i+=o.length,void e.enqueue(o)}}),cancel:()=>t.cancel()}),s=new Bs(n,{maxCacheSize:this._orchestrator.options.maxCacheSize,handleUnhandledError:this._options.handleUnhandledError});s._endIndex=this._orchestrator.fileSize,s._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. Because the HTTP server did not honor the range request, data can only be read sequentially, with old data being evicted from the cache. To fix this issue, either ensure your server responds to range requests with 206 Partial Content, or set maxCacheSize to Infinity in the UrlSource options. Note that the latter will store the entire file in the cache if needed, no matter how large.",s.on("read",({start:e,end:t})=>this._dispatchRead(e,t)),this._sequentialBacking=s;const a=new Set;for(const o of this._orchestrator.workers){for(const e of o.pendingSlices)a.add(e);o.aborted=!0,o.pendingSlices.length=0}for(const o of this._orchestrator.queuedReads)for(const e of o.pendingSlices)a.add(e);this._orchestrator.workers.length=0,this._orchestrator.queuedReads.length=0;for(const o of a){const e=s._read(o.start,o.start+o.bytes.length);Pe(e)?e.then(e=>{e?(S(e.offset===o.start),o.resolve(e.bytes)):o.resolve(null)},e=>o.reject(e)):(S(null===e),o.resolve(null))}}_dispose(){this._orchestrator.dispose(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}}const xs=/^bytes=(\d+)-(\d*)$/,Cs=e=>{const t=xs.exec(e.trim());if(!t)return null;const i=Number(t[1]),r=""===t[2]?null:Number(t[2]);return null!==r&&rthis._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,t);const i=K(this._cache,e,e=>e.start),r=-1!==i?this._cache[i]:null;if(r&&r.start<=e&&t<=r.end)return{bytes:r.bytes,view:r.view,offset:r.start};let n=e;const s=new Uint8Array(t-e);if(-1!==i)for(let c=i;c=t)break;const r=Math.max(e,i.start);r>n&&this._throwDueToCacheMiss();const a=Math.min(t,i.end);rn&&this._throwDueToCacheMiss();const{promise:a,resolve:o,reject:l}=$();return this._pendingSlices.push({start:e,end:t,bytes:s,resolve:o,reject:l}),this._targetIndex=Math.max(this._targetIndex,t),this._pulling||(this._pulling=!0,this._pull().catch(e=>{if(this._pulling=!1,this._pendingSlices.length>0)this._pendingSlices.forEach(t=>t.reject(e)),this._pendingSlices.length=0;else{if(!this._handleUnhandledError)throw e;this._handleUnhandledError(e)}})),a}_throwDueToCacheMiss(){throw new Error(this._cacheMissErrorMessage)}_pull(){return p(this,null,function*(){for(null!=this._reader||(this._reader=this._stream.getReader());this._currentIndex0;){const e=this._cache[0];if(this._maxRequestedIndex-e.end<=this._maxCacheSize)break;this._cache.shift()}this._currentIndex+=t.byteLength}this._pulling=!1})}_dispose(){var e;for(const t of this._pendingSlices)t.reject(new Ro);this._pendingSlices.length=0,this._cache.length=0,null==(e=this._reader)||e.cancel()}}const Es={fileSystem:(e,t)=>{const i=c(2,16);return{start:e=Math.floor((e-i)/i)*i,end:t=Math.ceil((t+i)/i)*i}},network:(e,t,i)=>{const r=c(2,16);e=Math.max(0,Math.floor((e-r)/r)*r);for(const n of i){const i=8*c(2,20),r=Math.max((n.startPos+n.targetPos)/2,n.targetPos-i);if(xe(e,t,r,n.targetPos)){const e=n.targetPos-n.startPos,r=Math.ceil((e+1)/i)*i,s=c(2,Math.ceil(Math.log2(e+1))),a=Math.min(s,r);t=Math.max(t,n.startPos+a)}}return{start:e,end:t=Math.max(t,e+Ss)}}};class _s{constructor(e){this.options=e,this.fileSize=null,this.nextAge=0,this.workers=[],this.cache=[],this.currentCacheSize=0,this.disposed=!1,this.queuedReads=[]}read(e,t,i,r){var n;S(!this.disposed);const s=this.options.prefetchProfile(e,t,this.workers),a=Math.max(s.start,i),o=Math.min(s.end,null!=(n=this.fileSize)?n:1/0,r);S(a<=e&&t<=o);let l=null;const c=K(this.cache,e,e=>e.start),u=-1!==c?this.cache[c]:null;u&&u.start<=e&&t<=u.end&&(u.age=this.nextAge++,l={bytes:u.bytes,view:u.view,offset:u.start});const d=K(this.cache,a,e=>e.start),h=l?null:new Uint8Array(t-e);let f=0,m=a;const p=[];if(-1!==d){for(let i=d;i=o)break;if(r.end<=a)continue;const n=Math.max(a,r.start),s=Math.min(o,r.end);if(S(n<=s),m=h.length&&(l={bytes:h,view:E(h),offset:e}),0===p.length)return S(l),l;const{promise:g,resolve:k,reject:y}=$(),b=[];for(const v of p){const i=Math.max(e,v.start),r=Math.min(t,v.end);i===v.start&&r===v.end?b.push(v):ie.hole.start),i=-1!==t?this.queuedReads[t]:null;for(i&&v.start<=i.hole.end?(i.hole.end=Math.max(i.hole.end,v.end),i.strictTarget&&(i.strictTarget=e),T&&i.pendingSlices.push(T)):(t++,i={hole:{start:v.start,end:v.end},strictTarget:e,pendingSlices:T?[T]:[],age:this.nextAge++},this.queuedReads.splice(t,0,i));t+1i.hole.end)break;i.hole.end=Math.max(i.hole.end,e.hole.end),i.pendingSlices.push(...e.pendingSlices),i.strictTarget&&(i.strictTarget=e.strictTarget),i.age=Math.min(i.age,e.age),this.queuedReads.splice(t+1,1)}}}return l?g.catch(e=>{if(!this.disposed){if(!this.options.handleUnhandledError)throw e;this.options.handleUnhandledError(e)}}):(S(h),l=g.then(t=>t&&{bytes:t,view:E(t),offset:e})),l}checkHoleAgainstWorker(e,t,i){const r=c(2,17);if(xe(t.start-r,t.start,e.currentPos,e.targetPos)){e.targetPos=Math.max(e.targetPos,t.end);for(let t=0;t=this.options.maxWorkerCount){let e=null,t=null;for(let i=0;i{if(e.running=!1,e.pendingSlices.length>0)e.pendingSlices.forEach(e=>e.reject(t)),e.pendingSlices.length=0;else if(!e.aborted&&!this.disposed){if(!this.options.handleUnhandledError)throw t;this.options.handleUnhandledError(t)}}).finally(()=>{if(!e.running&&this.queuedReads.length>0){let e=0;for(let r=1;re.targetPos&&(e.targetPos=e.currentPos,this.checkQueuedReadsAgainstWorker(e));for(let a=0;at.start&&(t.start=s),t.end<=t.start&&(i.holes.splice(e,1),e--)}0===i.holes.length&&(i.resolve(i.bytes),e.pendingSlices.splice(a,1),a--)}for(let a=0;ae){r.resolve(null),t.pendingSlices.splice(i,1),i--;break}}}for(let t=0;t=e){for(const e of i.pendingSlices)e.resolve(null);this.queuedReads.splice(t,1),t--}else if(i.hole.end>e){i.hole.end=e,i.strictTarget=!0;for(let t=0;t=e&&(r.resolve(null),i.pendingSlices.splice(t,1),t--)}}}}signalWorkerStoppedRunning(e){e.running=!1,e.aborted||(e.pendingSlices.length=0)}onWorkerFinished(e){var t,i;const r=this.workers.indexOf(e);S(-1!==r),e.running=!1,this.workers.splice(r,1),null==(i=(t=this.options).onIdleWorkerRemoved)||i.call(t,e),null===this.fileSize&&this.supplyFileSize(e.currentPos);for(const n of e.pendingSlices)n.resolve(null)}insertIntoCache(e){if(0===this.options.maxCacheSize)return;let t=K(this.cache,e.start,e=>e.start)+1;if(t>0){const i=this.cache[t-1];if(i.end>=e.end)return;if(i.end>e.start){const r=new Uint8Array(e.end-i.start);r.set(i.bytes,0),r.set(e.bytes,e.start-i.start),this.currentCacheSize+=e.end-i.end,i.bytes=r,i.view=E(r),i.end=e.end,t--,e=i}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length}else this.cache.splice(t,0,e),this.currentCacheSize+=e.bytes.length;for(let i=t+1;i=t.end){this.cache.splice(i,1),this.currentCacheSize-=t.bytes.length,i--;continue}const r=new Uint8Array(t.end-e.start);r.set(e.bytes,0),r.set(t.bytes,t.start-e.start),this.currentCacheSize-=e.end-t.start,e.bytes=r,e.view=E(r),e.end=t.end,this.cache.splice(i,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let e=0,t=this.cache[0];for(let i=1;ithis._length)return null;const n=this._baseSource._read(this._offset+e,this._offset+t,this._offset+i,this._offset+r),s=e=>e?(e.offset-=this._offset,e):null;return Pe(n)?n.then(s):s(n)}_dispose(){var e;null==(e=this._ref)||e.free()}ref(){return null!=this._ref||(this._ref=this._baseSource.ref()),super.ref()}}var Fs=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,n;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(n=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");n&&(r=function(){try{n.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t},As=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});const Ds=/^0[xX][0-9a-fA-F]+$/,Ms=/^data:.*;base64,/i;class Ns extends us{constructor(e,t,i,r){super(e.input,t,i),this.segments=[],this.nextLines=null,this.currentUpdateSegmentsPromise=null,this.streamHasEnded=!1,this.lastSegmentUpdateTime=-1/0,this.refreshInterval=5,this.rootPath=t,this.demuxer=e,this.nextLines=r}runUpdateSegments(){var e;return null!=(e=this.currentUpdateSegmentsPromise)?e:this.currentUpdateSegmentsPromise=(()=>p(this,null,function*(){try{const e=this.getRemainingWaitTimeMs();e>0&&(yield Me(e)),this.lastSegmentUpdateTime=performance.now(),yield this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}}))()}getRemainingWaitTimeMs(){const e=performance.now()-this.lastSegmentUpdateTime,t=Math.max(0,1e3*this.refreshInterval-e);return t<=50?0:t}updateSegments(){return p(this,null,function*(){var e,t,i,r,n,s,a,o;let l=this.nextLines;if(this.nextLines=null,!l){const e={stack:[],error:void 0,hasError:!1};try{const t=Fs(e,yield this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}),!1),i=new Fo(t.source),r=yield i.requestEntireFile();S(r),l=Jo(r,r.length,{ignore:ls}),t.source instanceof ks&&(this.rootPath=t.source.rootPath)}catch(F){e.error=F,e.hasError=!0}finally{As(e)}}const u=!1!==(null==(e=this.input._formatOptions.hls)?void 0:e.offsetTimestampsByDateTime);let f=!1,m=0,p=null,g=null,k=null,y=0,b=null,T=null,v=null,w=null,I=null,x=null,C=!1,B=null!=(t=P(this.segments))?t:null;const _=e=>{const t=e.indexOf("@"),i=Number(-1===t?e:e.slice(0,t));if(!Number.isInteger(i)||i<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${e}'.`);let r=null;if(-1!==t&&(r=Number(e.slice(t+1)),!Number.isInteger(r)||r<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${e}'.`);return{length:i,offset:r}},R=e=>{y=e,B&&(S(null!==B.sequenceNumber),B.sequenceNumber0&&null!==x&&(m=y*x),C=!0);const t=e.slice(8),i=t.indexOf(","),r=-1===i?t:t.slice(0,i),n=Number(r);if(!Number.isFinite(n)||n<0)throw new Error(`Invalid #EXTINF tag duration '${r}'.`);g=n}else if(e.startsWith(ts)){const t=new cs(e.slice(11)),i=t.get("uri");if(!i)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");const r=t.get("byterange");let a=null;if(null!==r&&(a=_(r)),a&&null===a.offset)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!B){const e={path:_e(this.rootPath,i),offset:null!=(n=null==a?void 0:a.offset)?n:0,length:null!=(s=null==a?void 0:a.length)?s:null};if("AES-128"===(null==k?void 0:k.method)&&!k.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");T={timestamp:m,unixEpochTimestamp:p,firstSegment:null,sequenceNumber:null,location:e,duration:0,encryption:k,initSegment:null,lastProgramDateTimeSeconds:I}}g=null,null===w?v=null:w=null}else if(e.startsWith(is)){const t=new cs(e.slice(11)),i=t.get("method");if("NONE"===i)k=null;else if("AES-128"===i){const e=t.get("uri");if(!e)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let i=null;const r=t.get("iv");if(r){if(!Ds.test(r))throw new Error(`Unsupported IV format '${r}'.`);let e=r.slice(2);e=e.padStart(32,"0"),i=new Uint8Array(Vi);for(let t=0;t=8&&112===i[4]&&115===i[5]&&115===i[6]&&104===i[7]){const e=E(i).getUint32(0);r=Ni(i.subarray(8,Math.min(e,i.length)))}}k={method:i,psshBox:r}}}}else if(e.startsWith(rs)){const t=e.slice(22),i=Number(t);if(!Number.isInteger(i)||i<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${t}'.`);R(i)}else if(e.startsWith(ns)){const t=_(e.slice(17));if(null===t.offset){if(null===v)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");t.offset=v}w=t,v=t.offset+t.length}else if(e.startsWith(ss)){if(B)continue;const t=e.slice(25),i=Date.parse(t);if(!Number.isFinite(i))continue;const r=i/1e3;if(I===r)continue;if(null===I&&this.segments.length>0){const e=P(this.segments),t=r-(e.timestamp+e.duration);for(const i of this.segments)i.unixEpochTimestamp=i.timestamp+t,u&&(i.timestamp=i.unixEpochTimestamp)}I=r,p=r,u&&(m=r)}else if("#EXT-X-DISCONTINUITY"===e)b=null;else if(e.startsWith(as)){const t=e.slice(22),i=Number(t);if(!Number.isFinite(i)||i<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${t}'.`);this.refreshInterval=i,x=i}else{if("#EXT-X-ENDLIST"===e){this.streamHasEnded=!0;break}if(e.startsWith(os)){"vod"===e.slice(21).toLowerCase()&&(this.streamHasEnded=!0)}}}else{if("#EXTM3U"!==e)throw new Error("Invalid M3U8 file; expected first line to be #EXTM3U.");f=!0}}if(!f)throw new Error("Invalid M3U8 file; no #EXTM3U header.")})}getFirstSegment(){return p(this,null,function*(){var e;return 0===this.segments.length&&(yield this.runUpdateSegments()),null!=(e=this.segments[0])?e:null})}getSegmentAt(e,t){return p(this,null,function*(){0===this.segments.length&&(yield this.runUpdateSegments());let i=!!t.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){const r=K(this.segments,e,e=>e.timestamp);if(-1===r)return null;if(r0;for(;;){if(re.segment===r);if(n)return n.age=this.nextInputCacheAge++,n.input;let s=null;(r.initSegment||r.firstSegment)&&(s=this.getInputForSegment(null!=(t=r.initSegment)?t:r.firstSegment));const a=h(d({},this.input._formatOptions),{isobmff:h(d({},this.input._formatOptions.isobmff),{resolveKeyId:(null==(i=this.input._formatOptions.isobmff)?void 0:i.resolveKeyId)&&(e=>{if(!r.encryption||"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method||!r.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(e);let t=e.psshBoxes;const{psshBox:i}=r.encryption;return null!==i.keyIds&&!i.keyIds.includes(e.keyId)||t.some(e=>Oi(e,i))||(t=[...t,i]),this.input._formatOptions.isobmff.resolveKeyId(h(d({},e),{psshBoxes:t}))})})}),o=new Eo({source:new bs(r.location.path,e=>p(this,null,function*(){var t,i;S(e.isRoot);const n=h(d({},e),{isRoot:!1});let s;const a=r.location.offset>0||null!==r.location.length;if(r.encryption&&"SAMPLE-AES"!==r.encryption.method&&"SAMPLE-AES-CTR"!==r.encryption.method)if("AES-128"===r.encryption.method){const e=r.encryption;S(e.iv);let t=yield this.input._getSourceCached(n);if(a){const e=t.source.slice(r.location.offset,null!=(i=r.location.length)?i:void 0).ref();t.free(),t=e}const o=((e,t,i)=>{let r=!1,n=0;const s=c(2,16),a=new Zi;return new ReadableStream({pull:o=>p(null,null,function*(){r||(a.init(yield t()),r=!0);const l=s+16;let c=e.requestSliceRange(n,0,l);if(Pe(c)&&(c=yield c),!c||0===c.length)throw new Error("Invalid ciphertext.");const u=c.length;if(u%16!==0)throw new Error("Invalid ciphertext.");const d=u===l?u-16:u,h=Mo(c,d),f=new Uint8Array(d);for(let e=0;e16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");const t=f.subarray(0,d-e);o.enqueue(t),o.close(),i()}}),cancel:()=>{i()}})})(new Fo(t.source),()=>p(this,null,function*(){const t={stack:[],error:void 0,hasError:!1};try{const i=Fs(t,yield this.input._getSourceCached({path:e.keyUri,isRoot:!1},Bo),!1),r=new Fo(i.source),n=yield r.requestSlice(0,Vi);if(!n)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");return{key:Mo(n,Vi),iv:e.iv}}catch(i){t.error=i,t.hasError=!0}finally{As(t)}}),()=>{t.free()});s=new Bs(o).ref()}else S(!1);else if(s=yield this.input._getSourceCached(n),a){const e=s.source.slice(r.location.offset,null!=(t=r.location.length)?t:void 0).ref();s.free(),s=e}return s})),formats:this.input._formats.filter(e=>!(e instanceof ia)),initInput:null!=s?s:void 0,formatOptions:a});o._onFormatDetermined=e=>{var t,i;if(("SAMPLE-AES"===(null==(t=r.encryption)?void 0:t.method)||"SAMPLE-AES-CTR"===(null==(i=r.encryption)?void 0:i.method))&&!e._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:r,input:o,age:this.nextInputCacheAge++});if(this.inputCache.length>4){const e=Fe(this.inputCache,e=>e.age);S(-1!==e),this.inputCache.splice(e,1)}return o}getLiveRefreshInterval(){return p(this,null,function*(){return 0===this.getRemainingWaitTimeMs()&&(yield this.runUpdateSegments()),this.streamHasEnded?null:this.refreshInterval})}}class Os extends Ai{constructor(e){super(e),this.metadataPromise=null,this.trackBackings=null,this.internalTracks=null,this.segmentedInputs=[],this.hasMasterPlaylist=!0}readMetadata(){var e;return null!=(e=this.metadataPromise)?e:this.metadataPromise=(()=>p(this,null,function*(){S(this.input._rootSource instanceof ks);const e=yield this.input._reader.requestEntireFile();S(e);const t=Jo(e,e.length,{ignore:ls}),{rootPath:i}=this.input._rootSource,r=[],n=[];for(let u=1;u"video"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],a=[...new Set(n.filter(e=>"audio"===e.attributes.get("type").toLowerCase()).map(e=>e.attributes.get("group-id")))],o=yield Promise.all(r.map((e,t)=>p(this,null,function*(){var r,o,l,c;const u=[],d=e.attributes.get("codecs");let h;if(d)h=d.split(",").map(e=>e.trim());else{const t=this.getSegmentedInputForPath(e.fullPath),i=yield t.getTrackBackings(),r=yield Promise.all(i.map(e=>p(this,null,function*(){return{track:e,codec:yield e.getCodec()}})));h=yield Promise.all(r.filter(e=>null!==e.codec).map(e=>e.track.getDecoderConfig().then(e=>e.codec)))}const f=e.attributes.get("video"),m=e.attributes.get("audio"),g=h.some(e=>oi.includes(Si(e))),k=h.some(e=>ci.includes(Si(e)));if(null!==f&&!g){if(!s.includes(f))throw new Error(`Invalid M3U8 file; variant stream references video group "${f}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===f&&"video"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=_e(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"video"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});S(null!==a),h.push(a)}}if(null!==m&&!k){if(!a.includes(m))throw new Error(`Invalid M3U8 file; variant stream references audio group "${m}" which is not defined in any #EXT-X-MEDIA tags.`);const e=n.find(e=>{const t=e.attributes.get("group-id"),i=e.attributes.get("type");return t===m&&"audio"===i.toLowerCase()});e:if(e){const t=e.attributes.get("uri");if(null===t)break e;const r=_e(i,t),n=this.getSegmentedInputForPath(r),s=(yield n.getTrackBackings()).find(e=>"audio"===e.getType());if(!s||null===(yield s.getCodec()))break e;const a=yield s.getDecoderConfig().then(e=>{var t;return null!=(t=null==e?void 0:e.codec)?t:null});S(null!==a),h.push(a)}}h=[...new Set(h)];let y=null,b=null;const T=e.attributes.getAsNumber("bandwidth");S(null!==T);const v=e.attributes.getAsNumber("average-bandwidth"),w=e.attributes.get("name");for(const i of h){const d=Si(i);if(null!==d)if(oi.includes(d)){if(null!==y)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");y=i;const a=e.attributes.get("video");if(null===a){const i=e.attributes.get("resolution");let r=null,n=null;if(i){const e=i.match(/^(\d+)x(\d+)$/);e&&(r=Number(e[1]),n=Number(e[2]))}u.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:re,lineNumber:e.lineNumber,fullPath:e.fullPath,fullCodecString:y,pairingMask:BigInt("1")<0?r:null}})}else{if(!a.includes(r))throw new Error(`Invalid M3U8 file; variant stream references audio group "${r}" which is not defined in any #EXT-X-MEDIA tags.`);for(const i of n){const n=i.attributes.get("group-id"),s=i.attributes.get("type");if(n!==r||"audio"!==s.toLowerCase())continue;const a=null!=(l=i.attributes.get("channels"))?l:e.attributes.get("channels"),o=null!==a?Number(a.split("/")[0]):null;u.push({id:-1,demuxer:this,backingTrack:null,default:qs(i.attributes),autoselect:qs(i.attributes)||Ws(i.attributes),languageCode:Hs(i.attributes.get("language")),lineNumber:i.lineNumber,fullPath:null!=(c=i.fullPath)?c:e.fullPath,fullCodecString:b,pairingMask:BigInt("1")<0?o:null}})}}}}return u}))),l=[],c=e=>{var t,i;const r=l.find(t=>t.fullPath===e.fullPath&&t.info.type===e.info.type);r?(r.pairingMask|=e.pairingMask,r.default||(r.default=e.default),r.autoselect||(r.autoselect=e.autoselect),r.lineNumber=Math.min(r.lineNumber,e.lineNumber),null!==e.peakBitrate&&(r.peakBitrate=Math.max(null!=(t=r.peakBitrate)?t:-1/0,e.peakBitrate)),null!==e.averageBitrate&&(r.averageBitrate=Math.max(null!=(i=r.averageBitrate)?i:-1/0,e.averageBitrate)),r.languageCode===re&&(r.languageCode=e.languageCode)):(e.id=l.length+1,l.push(e))};for(const u of o)for(const e of u)c(e);l.sort((e,t)=>e.lineNumber-t.lineNumber),this.trackBackings=[];for(const u of l)"video"===u.info.type?this.trackBackings.push(new zs(u)):this.trackBackings.push(new Us(u));this.internalTracks=l}))()}getTrackBackings(){return p(this,null,function*(){return yield this.readMetadata(),S(this.trackBackings),this.trackBackings})}getSegmentedInputForPath(e){let t=this.segmentedInputs.find(t=>t.path===e);if(t)return t;let i=null;if(this.internalTracks){i=this.internalTracks.filter(t=>t.fullPath===e).map(e=>({id:e.id,type:e.info.type}))}return t=new Ns(this,e,i,null),this.segmentedInputs.push(t),t}getMetadataTags(){return p(this,null,function*(){return{}})}getMimeType(){return p(this,null,function*(){return Qn})}dispose(){if(this.segmentedInputs){for(const e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}}class Ls{constructor(e){this.internalTrack=e,this.hydrationPromise=null}hydrate(){var e;return null!=(e=this.hydrationPromise)?e:this.hydrationPromise=(()=>p(this,null,function*(){const e=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath);let t=null;const i=(yield e.getTrackBackings()).filter(e=>e.getType()===this.getType());if(1===i.length)t=i[0];else if(this instanceof zs){for(const r of i)if((yield r.getCodec())===this.getCodec()){t=r;break}}else{S(this instanceof Us);for(const e of i)if((yield e.getCodec())===this.getCodec()){t=e;break}}if(!t)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=t}))()}delegate(e){return this.internalTrack.backingTrack?e():this.hydrate().then(e)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return h(d({},We),{default:this.internalTrack.autoselect,primary:this.internalTrack.default})}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){S(this.internalTrack.demuxer.internalTracks);const e=this.internalTrack.info.type;let t=0;for(const i of this.internalTrack.demuxer.internalTracks)if(i.info.type===e&&t++,i===this.internalTrack)break;return t}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(e){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(e))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}getDurationFromMetadata(e){return p(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(e)})}getLiveRefreshInterval(){return p(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()})}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}getFirstPacket(e){return p(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(e)})}getPacket(e,t){return p(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getPacket(e,t)})}getKeyPacket(e,t){return p(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(e,t)})}getNextPacket(e,t){return p(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextPacket(e,t)})}getNextKeyPacket(e,t){return p(this,null,function*(){return yield this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(e,t)})}}class zs extends Ls{constructor(e){super(e)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return Si(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getRotation(){return this.delegate(()=>this.backingVideoTrack.getRotation())}getColorSpace(){return p(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getColorSpace()})}canBeTransparent(){return p(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.canBeTransparent()})}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return p(this,null,function*(){return yield this.hydrate(),this.backingVideoTrack.getDecoderConfig()})}}class Us extends Ls{constructor(e){super(e)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return Si(this.internalTrack.fullCodecString)}getNumberOfChannels(){return null!==this.internalTrack.info.numberOfChannels?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}getDecoderConfig(){return p(this,null,function*(){return yield this.hydrate(),this.backingAudioTrack.getDecoderConfig()})}}const qs=e=>{const t=e.get("default");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},Ws=e=>{const t=e.get("autoselect");if(null===t)return!1;const i=t.toUpperCase();if("YES"===i)return!0;if("NO"===i)return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},Hs=e=>{if(null===e)return re;const t=e.split("-")[0];return t||re};class Vs{constructor(){this._isIsobmff=!1}}class js extends Vs{constructor(){super(...arguments),this._isIsobmff=!0}_getMajorBrand(e){return p(this,null,function*(){let t=e._reader.requestSlice(0,12);if(Pe(t)&&(t=yield t),!t)return null;t.skip(4);const i=Yo(t,4);return"ftyp"!==i&&"styp"!==i?null:Yo(t,4)})}_createDemuxer(e){return new er(e)}}class Ks extends js{_canReadInput(e){return p(this,null,function*(){const t=yield this._getMajorBrand(e);if(null!==t)return"qt "!==t;let i=0;for(let r=0;r<10;r++){let t=e._reader.requestSlice(i,8);if(Pe(t)&&(t=yield t),!t)return!1;let r=Wo(t),n=8;if(1===r){let t=e._reader.requestSlice(i+8,8);if(Pe(t)&&(t=yield t),!t)return!1;r=Ko(t),n=16}if(r8)return!1;if(xr(i,r)!==yr.EBML)return!1;const n=Br(i);if("number"!==typeof n)return!1;let s=e._reader.requestSlice(i.filePos,n);if(Pe(s)&&(s=yield s),!s)return!1;const a=i.filePos;for(;s.filePos<=a+n-2;){const e=Er(s);if(!e)break;const{id:i,size:r}=e,n=s.filePos;if(void 0===r)return!1;switch(i){case yr.EBMLVersion:if(1!==xr(s,r))return!1;break;case yr.EBMLReadVersion:if(1!==xr(s,r))return!1;break;case yr.DocType:if(_r(s,r)!==t)return!1;break;case yr.DocTypeVersion:if(xr(s,r)>4)return!1}s.filePos=n+r}return!0})}_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"matroska")}_createDemuxer(e){return new sn(e)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}}class Gs extends $s{_canReadInput(e){return this.isSupportedEBMLOfDocType(e,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}}class Qs extends Vs{_canReadInput(e){return p(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,nl);if(Pe(i)&&(i=yield i),!i)break;const r=ll(i);if(!r)break;t=i.filePos+r.size}const i=yield cn(e._reader,t,t+4096);if(!i)return!1;const r=i.header,n=Ci(r.mpegVersionId,r.channel);let s=e._reader.requestSlice(i.startPos+n,4);if(Pe(s)&&(s=yield s),!s)return!1;const a=Wo(s);if(a===Ii||a===xi)return!0;t=i.startPos+i.header.totalSize;const o=yield cn(e._reader,t,t+4);if(!o)return!1;const l=o.header;return r.channel===l.channel&&r.sampleRate===l.sampleRate})}_createDemuxer(e){return new un(e)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}}class Ys extends Vs{_canReadInput(e){return p(this,null,function*(){let t=e._reader.requestSlice(0,12);if(Pe(t)&&(t=yield t),!t)return!1;const i=Yo(t,4);if("RIFF"!==i&&"RIFX"!==i&&"RF64"!==i)return!1;t.skip(4);return"WAVE"===Yo(t,4)})}_createDemuxer(e){return new xn(e)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}}class Js extends Vs{_canReadInput(e){return p(this,null,function*(){let t=e._reader.requestSlice(0,4);return Pe(t)&&(t=yield t),!!t&&"OggS"===Yo(t,4)})}_createDemuxer(e){return new Tn(e)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}}class Zs extends Vs{_canReadInput(e){return p(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,nl);if(Pe(i)&&(i=yield i),!i)break;const r=ll(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSlice(t,4);return Pe(i)&&(i=yield i),!!i&&"fLaC"===Yo(i,4)})}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(e){return new An(e)}}class ea extends Vs{_canReadInput(e){return p(this,null,function*(){let t=0;for(;;){let i=e._reader.requestSlice(t,nl);if(Pe(i)&&(i=yield i),!i)break;const r=ll(i);if(!r)break;t=i.filePos+r.size}let i=e._reader.requestSliceRange(t,7,9);if(Pe(i)&&(i=yield i),!i)return!1;const r=En(i);if(!r)return!1;if(t+=r.frameLength,i=e._reader.requestSliceRange(t,7,9),Pe(i)&&(i=yield i),!i)return!1;const n=En(i);return!!n&&(r.objectType===n.objectType&&r.samplingFrequencyIndex===n.samplingFrequencyIndex&&r.channelConfiguration===n.channelConfiguration)})}_createDemuxer(e){return new Rn(e)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}}class ta extends Vs{_canReadInput(e){return p(this,null,function*(){let t=e._reader.requestSlice(0,205);if(Pe(t)&&(t=yield t),!t)return!1;const i=Mo(t,205);return 71===i[0]&&71===i[188]||(71===i[0]&&71===i[204]||71===i[4]&&71===i[196])})}_createDemuxer(e){return new qn(e)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}}class ia extends Vs{_canReadInput(e){return p(this,null,function*(){let t=e._reader.requestSlice(0,7);if(Pe(t)&&(t=yield t),!t)return!1;if(!("#EXTM3U"===Yo(t,7)))return!1;if(!(e._rootSource instanceof ks))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return e._rootSource._usedForHls=!0,!0})}_createDemuxer(e){return new Os(e)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return Qn}}const ra=new Ks,na=new Xs,sa=new $s,aa=new Gs,oa=new Qs,la=new Ys,ca=new Js,ua=new ea,da=new Zs,ha=new ta,fa=new ia,ma=[fa,ra,na,sa,aa,la,ca,da,oa,ua,ha],pa=[fa,ra,na,oa,ua,ha];var ga=function(e){return function(t){function i(i){t.error=t.hasError?new e(i,t.error,"An error was suppressed during disposal."):i,t.hasError=!0}var r,n=0;return function e(){for(;r=t.stack.pop();)try{if(!r.async&&1===n)return n=0,t.stack.push(r),Promise.resolve().then(e);if(r.dispose){var s=r.dispose.call(r.value);if(r.async)return n|=2,Promise.resolve(s).then(e,function(t){return i(t),e()})}else n|=1}catch(a){i(a)}if(1===n)return t.hasError?Promise.reject(t.error):Promise.resolve();if(t.hasError)throw t.error}()}}("function"===typeof SuppressedError?SuppressedError:function(e,t,i){var r=new Error(i);return r.name="SuppressedError",r.error=e,r.suppressed=t,r});Be();let ka=-1/0,ya=-1/0,ba=null;"undefined"!==typeof FinalizationRegistry&&(ba=new FinalizationRegistry(e=>{const t=performance.now();"video"===e.type?(t-ka>=1e3&&(ze._error("A VideoSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your VideoSamples as soon as you're done using them."),ka=t),"undefined"!==typeof VideoFrame&&e.data instanceof VideoFrame&&e.data.close()):(t-ya>=1e3&&(ze._error("An AudioSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your AudioSamples as soon as you're done using them."),ya=t),"undefined"!==typeof AudioData&&e.data instanceof AudioData&&e.data.close())}));class Ta{constructor(){this._referenceCount=0,this._lastAllocationBuffer=null}}const va=["I420","I420P10","I420P12","I420A","I420AP10","I420AP12","I422","I422P10","I422P12","I422A","I422AP10","I422AP12","I444","I444P10","I444P12","I444A","I444AP10","I444AP12","NV12","RGBA","RGBX","BGRA","BGRX"],Sa=new Set(va);class wa{get codedWidth(){return this.visibleRect.width}get codedHeight(){return this.visibleRect.height}get displayWidth(){return this.rotation%180===0?this.squarePixelWidth:this.squarePixelHeight}get displayHeight(){return this.rotation%180===0?this.squarePixelHeight:this.squarePixelWidth}get microsecondTimestamp(){return Math.trunc(de*this.timestamp)}get microsecondDuration(){return Math.trunc(de*this.duration)}get hasAlpha(){return this.format&&this.format.includes("A")}constructor(e,t){var i,r,n,s,a,o,l,c,u,d,h,f,m,p,g,k,y,b,T,v,S,w,P,I,x,C,E,_,R,F,A;if(this._closed=!1,e instanceof ArrayBuffer||"undefined"!==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||ArrayBuffer.isView(e)){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0===t.format||!Sa.has(t.format))throw new TypeError("init.format must be one of: "+va.join(", "));if(!Number.isInteger(t.codedWidth)||t.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(t.codedHeight)||t.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.layout){if(!Array.isArray(t.layout))throw new TypeError("init.layout, when provided, must be an array.");for(const e of t.layout){if(!e||"object"!==typeof e||Array.isArray(e))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(e.offset)||e.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(e.stride)||e.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==t.visibleRect&&De(t.visibleRect,"init.visibleRect"),void 0!==t.displayWidth&&(!Number.isInteger(t.displayWidth)||t.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(void 0!==t.displayHeight&&(!Number.isInteger(t.displayHeight)||t.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(void 0!==t.displayWidth!==(void 0!==t.displayHeight))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=t.format,this.rotation=null!=(i=t.rotation)?i:0,this.timestamp=t.timestamp,this.duration=null!=(r=t.duration)?r:0;const m=null!=(n=t.layout)?n:Aa(t.format,t.codedWidth,t.codedHeight);let p=null!=(s=t.colorSpace)?s:null;null===p&&(p="RGBA"===this.format||"RGBX"===this.format||"BGRA"===this.format||"BGRX"===this.format?{primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:{primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:null!=(o=null==(a=t.visibleRect)?void 0:a.left)?o:0,top:null!=(c=null==(l=t.visibleRect)?void 0:l.top)?c:0,width:null!=(d=null==(u=t.visibleRect)?void 0:u.width)?d:t.codedWidth,height:null!=(f=null==(h=t.visibleRect)?void 0:h.height)?f:t.codedHeight},void 0!==t.displayWidth?(this.squarePixelWidth=this.rotation%180===0?t.displayWidth:t.displayHeight,this.squarePixelHeight=this.rotation%180===0?t.displayHeight:t.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=t._doNotCopy?B(e):B(e).slice(),this._layout=m,this.colorSpace=new Ba(p)}else if("undefined"!==typeof VideoFrame&&e instanceof VideoFrame){if(void 0!==(null==t?void 0:t.rotation)&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(void 0!==(null==t?void 0:t.timestamp)&&!Number.isFinite(null==t?void 0:t.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(void 0!==(null==t?void 0:t.duration)&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");void 0!==(null==t?void 0:t.visibleRect)&&De(t.visibleRect,"init.visibleRect"),this._data=e,this._layout=null,this.format=e.format,this.visibleRect={left:null!=(p=null==(m=e.visibleRect)?void 0:m.x)?p:0,top:null!=(k=null==(g=e.visibleRect)?void 0:g.y)?k:0,width:null!=(b=null==(y=e.visibleRect)?void 0:y.width)?b:e.codedWidth,height:null!=(v=null==(T=e.visibleRect)?void 0:T.height)?v:e.codedHeight},this.rotation=null!=(S=null==t?void 0:t.rotation)?S:0,this.squarePixelWidth=e.displayWidth,this.squarePixelHeight=e.displayHeight,this.timestamp=null!=(w=null==t?void 0:t.timestamp)?w:e.timestamp/1e6,this.duration=null!=(I=null==t?void 0:t.duration)?I:(null!=(P=e.duration)?P:0)/1e6,this.colorSpace=new Ba(e.colorSpace)}else if("undefined"!==typeof HTMLImageElement&&e instanceof HTMLImageElement||"undefined"!==typeof SVGImageElement&&e instanceof SVGImageElement||"undefined"!==typeof ImageBitmap&&e instanceof ImageBitmap||"undefined"!==typeof HTMLVideoElement&&e instanceof HTMLVideoElement||"undefined"!==typeof HTMLCanvasElement&&e instanceof HTMLCanvasElement||"undefined"!==typeof OffscreenCanvas&&e instanceof OffscreenCanvas){if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(void 0!==t.visibleRect&&De(t.visibleRect,"init.visibleRect"),"undefined"!==typeof VideoFrame)return new wa(new VideoFrame(e,{timestamp:Math.trunc(t.timestamp*de),duration:Math.trunc((null!=(x=t.duration)?x:0)*de)||void 0,visibleRect:t.visibleRect&&{x:t.visibleRect.left,y:t.visibleRect.top,width:t.visibleRect.width,height:t.visibleRect.height}}),t);let i=0,r=0;if("naturalWidth"in e?(i=e.naturalWidth,r=e.naturalHeight):"videoWidth"in e?(i=e.videoWidth,r=e.videoHeight):"width"in e&&(i=Number(e.width),r=Number(e.height)),!i||!r)throw new TypeError("Could not determine dimensions.");const n=null!=(C=t.visibleRect)?C:{left:0,top:0,width:i,height:r},s=new OffscreenCanvas(n.width,n.height),a=s.getContext("2d",{alpha:be(),willReadFrequently:!0});if(!a)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");a.drawImage(e,-n.left,-n.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:n.width,height:n.height},this.squarePixelWidth=n.width,this.squarePixelHeight=n.height,this.rotation=null!=(E=t.rotation)?E:0,this.timestamp=t.timestamp,this.duration=null!=(_=t.duration)?_:0,this.colorSpace=new Ba({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else{if(!(e instanceof Ta))throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");if(!t||"object"!==typeof t)throw new TypeError("init must be an object.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(!Number.isFinite(t.timestamp))throw new TypeError("init.timestamp must be a number.");if(void 0!==t.duration&&(!Number.isFinite(t.duration)||t.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=e,e._referenceCount++,this.format=e.getFormat(),null!==this.format&&!va.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:e.getCodedWidth(),height:e.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=e.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=e.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=null!=(R=t.rotation)?R:0,this.timestamp=t.timestamp,this.duration=null!=(F=t.duration)?F:0,this.colorSpace=e.getColorSpace()}this.encodeOptions=null!=(A=null==t?void 0:t.encodeOptions)?A:{},this.pixelAspectRatio=Ae({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),null==ba||ba.register(this,{type:"video",data:this._data},this)}clone(){if(this._closed)throw new Error("VideoSample is closed.");return S(null!==this._data),this._data instanceof Ta?new wa(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):Ea(this._data)?new wa(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(S(this._layout),new wa(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new wa(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(null==ba||ba.unregister(this),this._data instanceof Ta?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Ea(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(e={}){var t;if(Fa(e),this._closed)throw new Error("VideoSample is closed.");if(null==(null!=(t=e.format)?t:this.format))throw new Error("Cannot get allocation size when format is null.");if(Ea(this._data))return this._data.allocationSize(e);return Ma(this,e).allocationSize}copyTo(e){return p(this,arguments,function*(e,t={}){var i,r;if(!U(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(Fa(t),this._closed)throw new Error("VideoSample is closed.");if(null==(null!=(i=t.format)?i:this.format))throw new Error("Cannot copy video sample data when format is null.");if(S(null!==this._data),Ea(this._data))return this._data.copyTo(e,t);if(t.format&&!["RGBA","RGBX","BGRA","BGRX"].includes(this.format)&&["RGBA","RGBX","BGRA","BGRX"].includes(t.format)){if(!(this._data instanceof Ta)){if("undefined"===typeof VideoFrame)throw new Error("For this sample, converting from a non-RGB to an RGB format requires VideoFrame to be defined.");const i=this.toVideoFrame(),r=yield i.copyTo(e,t);return i.close(),r}{const i={stack:[],error:void 0,hasError:!1};try{const n=function(e,t,i){if(null!==t&&void 0!==t){if("object"!==typeof t&&"function"!==typeof t)throw new TypeError("Object expected.");var r,n;if(i){if(!Symbol.asyncDispose)throw new TypeError("Symbol.asyncDispose is not defined.");r=t[Symbol.asyncDispose]}if(void 0===r){if(!Symbol.dispose)throw new TypeError("Symbol.dispose is not defined.");r=t[Symbol.dispose],i&&(n=r)}if("function"!==typeof r)throw new TypeError("Object not disposable.");n&&(r=function(){try{n.call(this)}catch(e){return Promise.reject(e)}}),e.stack.push({value:t,dispose:r,async:i})}else i&&e.stack.push({async:!0});return t}(i,yield this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation},null!=(r=t.colorSpace)?r:"srgb"),!1);if(!(n instanceof wa))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(n.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${n.format}' instead.`);return yield n.copyTo(e,t)}catch(u){i.error=u,i.hasError=!0}finally{ga(i)}}}const n=Ma(this,t);S(this.format);const s=B(e);if(s.byteLength!(e.data instanceof Uint8Array)||!Number.isInteger(e.stride)||e.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');o=e}else if(this._data instanceof Uint8Array)S(this._layout),S(this._layout.length===a.length),o=this._layout.map((e,t)=>{const i=Math.ceil(this.codedHeight/a[t].heightDivisor);return{data:this._data.subarray(e.offset,e.offset+e.stride*i),stride:e.stride}});else{const e=this._data.getContext("2d");S(e);const t=e.getImageData(0,0,this.codedWidth,this.codedHeight);o=[{data:B(t.data),stride:4*this.codedWidth}]}const l=[],c=a.length;for(let d=0;di.byteLength)throw new Error("Source buffer OOB read.");if(a+c>s.byteLength)throw new Error("Destination buffer OOB write.");const n=i.subarray(r,r+c);s.set(n,a),r+=t,a+=e.destinationStride}l.push(u)}if(void 0!==t.format){const e=this.format.startsWith("RGB")!==t.format.startsWith("RGB"),i=this.format.includes("X")&&t.format.includes("A");if(e||i)for(let t=0;te+t.data.byteLength,0),i=new Uint8Array(t);let r=0;const n=[];for(const s of e)i.set(s.data,r),n.push(r),r+=s.data.byteLength;return new VideoFrame(i,{format:this.format,layout:e.map((e,t)=>({offset:n[t],stride:e.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}return Ea(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(S(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(e,t,i,r,n,s,a,o,l){let c=0,u=0,d=this.displayWidth,h=this.displayHeight,f=0,m=0,p=this.displayWidth,g=this.displayHeight;if(void 0!==s?(c=t,u=i,d=r,h=n,f=s,m=a,void 0!==o?(p=o,g=l):(p=d,g=h)):(f=t,m=i,void 0!==r&&(p=r,g=n)),!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(c))throw new TypeError("sx must be a number.");if(!Number.isFinite(u))throw new TypeError("sy must be a number.");if(!Number.isFinite(d)||d<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(h)||h<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(f))throw new TypeError("dx must be a number.");if(!Number.isFinite(m))throw new TypeError("dy must be a number.");if(!Number.isFinite(p)||p<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(g)||g<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:c,sy:u,sWidth:d,sHeight:h}=this._rotateSourceRegion(c,u,d,h,this.rotation));const k=this.toCanvasImageSource();e.save();const y=f+p/2,b=m+g/2;e.translate(y,b),e.rotate(this.rotation*Math.PI/180);const T=this.rotation%180===0?1:p/g;e.scale(1/T,T),e.drawImage(k,c,u,d,h,-p/2,-g/2,p,g),e.restore()}drawWithFit(e,t){var i,r,n,s,a,o,l,c,u;if(!("undefined"!==typeof CanvasRenderingContext2D&&e instanceof CanvasRenderingContext2D||"undefined"!==typeof OffscreenCanvasRenderingContext2D&&e instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(t.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");void 0!==t.crop&&Ra(t.crop,"options.");const d=e.canvas.width,h=e.canvas.height,f=null!=(i=t.rotation)?i:this.rotation,[m,p]=f%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let g,k,y,b,T=t.crop;T&&(T=_a(T,m,p));const{sx:v,sy:S,sWidth:w,sHeight:P}=this._rotateSourceRegion(null!=(n=null==(r=t.crop)?void 0:r.left)?n:0,null!=(a=null==(s=t.crop)?void 0:s.top)?a:0,null!=(l=null==(o=t.crop)?void 0:o.width)?l:m,null!=(u=null==(c=t.crop)?void 0:c.height)?u:p,f);if("fill"===t.fit)g=0,k=0,y=d,b=h;else{const[e,i]=t.crop?[t.crop.width,t.crop.height]:[m,p],r="contain"===t.fit?Math.min(d/e,h/i):Math.max(d/e,h/i);y=e*r,b=i*r,g=(d-y)/2,k=(h-b)/2}e.save();const I=f%180===0?1:y/b;e.translate(d/2,h/2),e.rotate(f*Math.PI/180),e.scale(1/I,I),e.translate(-d/2,-h/2),e.drawImage(this.toCanvasImageSource(),v,S,w,P,g,k,y,b),e.restore()}_rotateSourceRegion(e,t,i,r,n){return 90===n?[e,t,i,r]=[t,this.squarePixelHeight-e-i,r,i]:180===n?[e,t]=[this.squarePixelWidth-e-i,this.squarePixelHeight-t-r]:270===n&&([e,t,i,r]=[this.squarePixelWidth-t-r,e,r,i]),{sx:e,sy:t,sWidth:i,sHeight:r}}_drawWithFitAndMipmapping(e,t,i){const r=e.width,n=e.height,[s,a]=i.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],o=i.crop?i.crop.width:s,l=i.crop?i.crop.height:a;let u=0;2*r0?Ca(d,h):{canvas:e,context:t,isNew:i.targetIsFresh};m.imageSmoothingQuality="high",i.fillBlack?(m.fillStyle="black",m.fillRect(0,0,d,h)):p||m.clearRect(0,0,d,h),this.drawWithFit(m,{fit:i.fit,rotation:i.rotation,crop:i.crop}),m.globalCompositeOperation="copy";for(let g=u;g>1;g--){const e=r*c(2,g),t=n*c(2,g);m.drawImage(f,0,0,e,t,0,0,e/2,t/2)}m.globalCompositeOperation="source-over",u>0&&(t.imageSmoothingQuality="high",t.globalCompositeOperation="copy",t.drawImage(f,0,0,2*r,2*n,0,0,r,n),t.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(S(null!==this._data),this._data instanceof Ta||this._data instanceof Uint8Array){const e=this.toVideoFrame();return queueMicrotask(()=>e.close()),e}return this._data}transform(e){return p(this,null,function*(){var t,i,r,n,s;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.width&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(void 0!==e.height&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(void 0!==e.roundDimensionsTo&&(!Number.isInteger(e.roundDimensionsTo)||e.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(void 0!==e.fit&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==e.width&&void 0!==e.height&&void 0===e.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==e.rotate&&![0,90,180,270].includes(e.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(void 0!==e.crop&&Ra(e.crop,"options."),void 0!==e.alpha&&!["keep","discard"].includes(e.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");const a=w(this.rotation+(null!=(t=e.rotate)?t:0)),[o,l]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth];let c=e.crop;c&&(c=_a(c,o,l));const u=c?c.width:o,d=c?c.height:l,h=u/d;let f,m;void 0!==e.width&&void 0===e.height?(f=e.width,m=f/h):void 0===e.width&&void 0!==e.height?(m=e.height,f=m*h):void 0!==e.width&&void 0!==e.height?(f=e.width,m=e.height):(f=u,m=d),f=se(f,null!=(i=e.roundDimensionsTo)?i:1),m=se(m,null!=(r=e.roundDimensionsTo)?r:1);const p={width:f,height:m,fit:null!=(n=e.fit)?n:"fill",rotation:a,crop:null!=c?c:{left:0,top:0,width:o,height:l},alpha:null!=(s=e.alpha)?s:"keep"};for(const e of Pa){let t=e(this,p);if(Pe(t)&&(t=yield t),null!==t)return t}const{canvas:g,context:k,isNew:y}=Ca(p.width,p.height);return this._drawWithFitAndMipmapping(g,k,{fit:p.fit,rotation:p.rotation,crop:p.crop,targetIsFresh:y,fillBlack:"discard"===p.alpha}),new wa(g,{timestamp:this.timestamp,duration:this.duration,rotation:0})})}setRotation(e){if(![0,90,180,270].includes(e))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=e}setTimestamp(e){if(!Number.isFinite(e))throw new TypeError("newTimestamp must be a number.");this.timestamp=e}setDuration(e){if(!Number.isFinite(e)||e<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=e}setEncodeOptions(e){if(!e||"object"!==typeof e)throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=e}[Symbol.dispose](){this.close()}}const Pa=[],Ia=[];let xa=0;const Ca=(e,t)=>{for(const n of Ia)if(n.canvas.width===e&&n.canvas.height===t)return n.age=xa++,{canvas:n.canvas,context:n.context,isNew:!1};let i;if("undefined"!==typeof OffscreenCanvas)i=new OffscreenCanvas(e,t);else{if("undefined"===typeof window||"undefined"===typeof document)throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");i=document.createElement("canvas"),i.width=e,i.height=t}const r=i.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return Ia.length>=3&&Ia.splice(Fe(Ia,e=>e.age),1),Ia.push({canvas:i,context:r,age:xa++}),{canvas:i,context:r,isNew:!0}};class Ba{constructor(e){var t,i,r,n;if(void 0!==e){if(!e||"object"!==typeof e)throw new TypeError("init.colorSpace, when provided, must be an object.");const t=Object.keys(F);if(null!=e.primaries&&!t.includes(e.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${t.join(", ")}.`);const i=Object.keys(D);if(null!=e.transfer&&!i.includes(e.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${i.join(", ")}.`);const r=Object.keys(N);if(null!=e.matrix&&!r.includes(e.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${r.join(", ")}.`);if(null!=e.fullRange&&"boolean"!==typeof e.fullRange)throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=null!=(t=null==e?void 0:e.primaries)?t:null,this.transfer=null!=(i=null==e?void 0:e.transfer)?i:null,this.matrix=null!=(r=null==e?void 0:e.matrix)?r:null,this.fullRange=null!=(n=null==e?void 0:e.fullRange)?n:null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}}const Ea=e=>"undefined"!==typeof VideoFrame&&e instanceof VideoFrame,_a=(e,t,i)=>{const r=Math.min(e.left,t),n=Math.min(e.top,i),s=Math.min(e.width,t-r),a=Math.min(e.height,i-n);return S(s>=0),S(a>=0),{left:r,top:n,width:s,height:a}},Ra=(e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(e.left)||e.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(e.top)||e.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(e.width)||e.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(e.height)||e.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},Fa=e=>{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.colorSpace&&!["display-p3","srgb"].includes(e.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(void 0!==e.format&&"string"!==typeof e.format)throw new TypeError("options.format, when provided, must be a string.");if(void 0!==e.layout){if(!Array.isArray(e.layout))throw new TypeError("options.layout, when provided, must be an array.");for(const t of e.layout){if(!t||"object"!==typeof t)throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(void 0!==e.rect){if(!e.rect||"object"!==typeof e.rect)throw new TypeError("options.rect, when provided, must be an object.");if(void 0!==e.rect.x&&(!Number.isInteger(e.rect.x)||e.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(void 0!==e.rect.y&&(!Number.isInteger(e.rect.y)||e.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(void 0!==e.rect.width&&(!Number.isInteger(e.rect.width)||e.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(void 0!==e.rect.height&&(!Number.isInteger(e.rect.height)||e.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},Aa=(e,t,i)=>{const r=Da(e),n=[];let s=0;for(const a of r){const e=Math.ceil(t/a.widthDivisor),r=Math.ceil(i/a.heightDivisor),o=e*a.sampleBytes,l=o*r;n.push({offset:s,stride:o}),s+=l}return n},Da=e=>{const t=(e,t,i,r,n)=>{const s=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:t,widthDivisor:i,heightDivisor:r},{sampleBytes:t,widthDivisor:i,heightDivisor:r}];return n&&s.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),s};switch(e){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:J(e),S(!1)}},Ma=(e,t)=>{const i={left:0,top:0,width:e.codedWidth,height:e.codedHeight},r=t.rect,n=Na(i,r,e.codedWidth,e.codedHeight,e.format),s=t.layout;let a;if(t.format&&t.format!==e.format){if(!["RGBA","RGBX","BGRA","BGRX"].includes(t.format))throw new Error("NotSupportedError: Invalid destination format.");a=t.format}else a=e.format;return La(n,a,s)},Na=(e,t,i,r,n)=>{const s=d({},e);if(void 0!==t){if(0===t.width||0===t.height)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>i)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");s.x=t.x||0,s.y=t.y||0,s.width=t.width||0,s.height=t.height||0}if(!Oa(n,s))throw new TypeError("visibleRect alignment is invalid for the format.");return s},Oa=(e,t)=>{if(null===e)return!0;const i=Da(e);for(let r=0;r{const r=Da(t),n=r.length;if(void 0!==i&&i.length!==n)throw new TypeError(`Layout must have ${n} planes.`);let s=0;const a=[],o=[];for(let l=0;l4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(h),s=Math.max(s,h);for(let e=0;e 0.");if(!Number.isInteger(e.numberOfChannels)||0===e.numberOfChannels)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(null==e?void 0:e.timestamp))throw new TypeError("init.timestamp must be a number.");const t=e.data.byteLength/(Wa(e.format)*e.numberOfChannels);if(!Number.isInteger(t))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");let i;if(this.format=e.format,this.sampleRate=e.sampleRate,this.numberOfFrames=t,this.numberOfChannels=e.numberOfChannels,this.timestamp=e.timestamp,this.duration=t/e.sampleRate,e.data instanceof ArrayBuffer)i=new Uint8Array(e.data);else{if(!ArrayBuffer.isView(e.data))throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");i=new Uint8Array(e.data.buffer,e.data.byteOffset,e.data.byteLength)}const r=this.numberOfFrames*this.numberOfChannels*Wa(this.format);if(i.byteLength=this.numberOfFrames)throw new RangeError("frameOffset out of range");const s=void 0!==e.frameCount?e.frameCount:this.numberOfFrames-n;if(s>this.numberOfFrames-n)throw new RangeError("frameCount out of range");const a=Wa(r),o=Ha(r);if(o&&e.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!o&&0!==e.planeIndex)throw new RangeError("planeIndex out of range");return(o?s:s*this.numberOfChannels)*a}copyTo(e,t){if(!U(e))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!t||"object"!==typeof t)throw new TypeError("options must be an object.");if(!Number.isInteger(t.planeIndex)||t.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(void 0!==t.format&&!za.has(t.format))throw new TypeError("Invalid format.");if(void 0!==t.frameOffset&&(!Number.isInteger(t.frameOffset)||t.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(void 0!==t.frameCount&&(!Number.isInteger(t.frameCount)||t.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");const{format:i,frameCount:r,frameOffset:n}=t;let{planeIndex:s}=t,a=this.format;const o=null!=i?i:this.format;if(!o)throw new Error("Destination format not determined");const l=this.numberOfFrames,c=this.numberOfChannels,u=null!=n?n:0;if(u>=l)throw new RangeError("frameOffset out of range");const d=void 0!==r?r:l-u;if(d>l-u)throw new RangeError("frameCount out of range");const h=Wa(o),f=Ha(o);if(f&&s>=c)throw new RangeError("planeIndex out of range");if(!f&&0!==s)throw new RangeError("planeIndex out of range");const m=(f?d:d*c)*h;if(e.byteLength2&&o!==a)return void Xa(this._data,p,a,o,c,s,u,d);try{return void this._data.copyTo(e,{planeIndex:s,frameOffset:u,frameCount:d,format:o})}catch(w){if("f32-planar"===o)throw w;a="f32-planar"}}const k=Va(a),y=Wa(a),b=Ha(a);let T;if(this._data instanceof Ua){const e=e=>{const t=this._data.getDataPlane(e);if(!(t instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");const i=l*y*(b?1:c);if(t.byteLength!==i)throw new TypeError(`Data plane ${e} has invalid size. Expected exactly ${i} bytes, got ${t.byteLength} bytes.`);return t};if(b)if(f)T=e(s),s=0;else{T=new Uint8Array(l*y*c);for(let t=0;tthis.numberOfFrames)throw new RangeError("startFrame out of range.");if(t>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(t0)for(let r=0;r0&&this.copyTo(n,{planeIndex:0,format:this.format,frameOffset:e,frameCount:i});return new qa({data:n,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+e/this.sampleRate})}close(){this._closed||(null==ba||ba.unregister(this),this._data instanceof Ua?(this._data._referenceCount--,0===this._data._referenceCount&&this._data.close()):Ka(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof Ua?this._createAudioDataFromData():Ka(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(Ha(this.format)){const e=this.allocationSize({planeIndex:0,format:this.format}),t=new ArrayBuffer(e*this.numberOfChannels);for(let i=0;i0;){const n=Math.min(s,o),l=new Float32Array(i*n);for(let t=0;t0;){const n=Math.min(s,o),c=new Float32Array(i*n);for(let t=0;t{switch(e){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},Ha=e=>{switch(e){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},Va=e=>{switch(e){case"u8":case"u8-planar":return(e,t)=>(e.getUint8(t)-128)/128;case"s16":case"s16-planar":return(e,t)=>e.getInt16(t,!0)/32768;case"s32":case"s32-planar":return(e,t)=>e.getInt32(t,!0)/2147483648;case"f32":case"f32-planar":return(e,t)=>e.getFloat32(t,!0)}},ja=e=>{switch(e){case"u8":case"u8-planar":return(e,t,i)=>e.setUint8(t,ie(127.5*(i+1),0,255));case"s16":case"s16-planar":return(e,t,i)=>e.setInt16(t,ie(Math.round(32767*i),-32768,32767),!0);case"s32":case"s32-planar":return(e,t,i)=>e.setInt32(t,ie(Math.round(2147483647*i),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(e,t,i)=>e.setFloat32(t,i,!0)}},Ka=e=>"undefined"!==typeof AudioData&&e instanceof AudioData,Xa=(e,t,i,r,n,s,a,o)=>{const l=Va(i),c=ja(r),u=Wa(i),d=Wa(r),h=Ha(i);if(Ha(r))if(h){const r=new ArrayBuffer(o*u),n=E(r);e.copyTo(r,{planeIndex:s,frameOffset:a,frameCount:o,format:i});for(let e=0;e{if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.metadataOnly&&"boolean"!==typeof e.metadataOnly)throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(void 0!==e.verifyKeyPackets&&"boolean"!==typeof e.verifyKeyPackets)throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(e.verifyKeyPackets&&e.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(void 0!==e.skipLiveWait&&"boolean"!==typeof e.skipLiveWait)throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},Ya=e=>{if(!Ee(e))throw new TypeError("timestamp must be a number.")},Ja=(e,t,i)=>i.verifyKeyPackets?t.then(t=>p(null,null,function*(){if(!t||"delta"===t.type)return t;const i=yield e.determinePacketType(t);return i&&(t.type=i),t})):t;class Za{constructor(e){if(!(e instanceof po))throw new TypeError("track must be an InputTrack.");this._track=e}getFirstPacket(){return p(this,arguments,function*(e={}){if(Qa(e),this._track.input._disposed)throw new Ro;return Ja(this._track,this._track._backing.getFirstPacket(e),e)})}getFirstKeyPacket(){return p(this,arguments,function*(e={}){Qa(e);const t=yield this.getFirstPacket(e);return t?"key"===t.type?t:this.getNextKeyPacket(t,e):null})}getPacket(e){return p(this,arguments,function*(e,t={}){if(Ya(e),Qa(t),this._track.input._disposed)throw new Ro;return Ja(this._track,this._track._backing.getPacket(e,t),t)})}getNextPacket(e){return p(this,arguments,function*(e,t={}){if(!(e instanceof Mi))throw new TypeError("packet must be an EncodedPacket.");if(Qa(t),this._track.input._disposed)throw new Ro;return Ja(this._track,this._track._backing.getNextPacket(e,t),t)})}getKeyPacket(e){return p(this,arguments,function*(e,t={}){if(Ya(e),Qa(t),this._track.input._disposed)throw new Ro;if(!t.verifyKeyPackets)return this._track._backing.getKeyPacket(e,t);const i=yield this._track._backing.getKeyPacket(e,t);if(!i)return i;S("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getKeyPacket(i.timestamp-1/(yield this._track.getTimeResolution()),t):i})}getNextKeyPacket(e){return p(this,arguments,function*(e,t={}){if(!(e instanceof Mi))throw new TypeError("packet must be an EncodedPacket.");if(Qa(t),this._track.input._disposed)throw new Ro;if(!t.verifyKeyPackets)return this._track._backing.getNextKeyPacket(e,t);const i=yield this._track._backing.getNextKeyPacket(e,t);if(!i)return i;S("key"===i.type);return"delta"===(yield this._track.determinePacketType(i))?this.getNextKeyPacket(i,t):i})}packets(e,t,i={}){if(void 0!==e&&!(e instanceof Mi))throw new TypeError("startPacket must be an EncodedPacket.");if(void 0!==e&&e.isMetadataOnly&&!(null==i?void 0:i.metadataOnly))throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(void 0!==t&&!(t instanceof Mi))throw new TypeError("endPacket must be an EncodedPacket.");if(Qa(i),this._track.input._disposed)throw new Ro;const r=[];let{promise:n,resolve:s}=$(),{promise:a,resolve:o}=$(),l=!1,c=!1,u=null,d=!1;const h=[],f=()=>Math.max(2,h.length);(()=>p(this,null,function*(){let u=null!=e?e:yield this.getFirstPacket(i);for(;u&&!c&&!this._track.input._disposed&&!(t&&u.sequenceNumber>=(null==t?void 0:t.sequenceNumber));)r.length>f()?(({promise:a,resolve:o}=$()),yield a):(r.push(u),s(),({promise:n,resolve:s}=$()),u=yield this.getNextPacket(u,i));l=!0,s()}))().catch(e=>{d||(u=e,d=!0,s())});const m=this._track;return{next(){return p(this,null,function*(){for(;;){if(m.input._disposed)throw new Ro;if(c)return{value:void 0,done:!0};if(d)throw u;if(r.length>0){const e=r.shift(),t=performance.now();for(h.push(t);h.length>0&&t-h[0]>=1e3;)h.shift();return o(),{value:e,done:!1}}if(l)return{value:void 0,done:!0};yield n}})},return(){return p(this,null,function*(){return c=!0,o(),s(),{value:void 0,done:!0}})},throw(e){return p(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}class eo{constructor(e,t){this.onSample=e,this.onError=t}}class to{mediaSamplesInRange(e=-1/0,t=1/0,i){Ya(e),Ya(t);const r=[];let n=!1,s=null,{promise:a,resolve:o}=$(),{promise:l,resolve:c}=$(),u=!1,f=!1,m=!1,g=null,k=null,y=!1;const b=h(d({},i),{verifyKeyPackets:!0,metadataOnly:!1});(()=>p(this,null,function*(){var i;g=yield this._createDecoder(i=>{c(),i.timestamp>=t&&(f=!0),f?i.close():(s&&(i.timestamp>e?(r.push(s),n=!0):s.close()),i.timestamp>=e&&(r.push(i),n=!0),s=n?null:i,r.length>0&&(o(),({promise:a,resolve:o}=$())))},e=>{y||(k=e,y=!0,o())});const d=this._createPacketSink(),h=null!=(i=yield d.getKeyPacket(e,b))?i:yield d.getFirstKeyPacket(b);let p=h;const T=d.packets(null!=h?h:void 0,void 0,b);for(yield T.next();p&&!f&&!this._track.input._disposed;){const e=io(r.length);if(r.length+g.getDecodeQueueSize()>e){({promise:l,resolve:c}=$()),yield l;continue}g.decode(p);const t=yield T.next();if(t.done)break;p=t.value}yield T.return(),m||this._track.input._disposed||(yield g.flush()),!n&&s&&r.push(s),u=!0,o()}))().catch(e=>{y||(k=e,y=!0,o())}).finally(()=>{null==g||g.close()});const T=this._track,v=()=>{null==s||s.close();for(const e of r)e.close()};return{next(){return p(this,null,function*(){for(;;){if(T.input._disposed)throw m=!0,f=!0,v(),new Ro;if(m)return{value:void 0,done:!0};if(y)throw m=!0,f=!0,v(),k;if(r.length>0){const e=r.shift();return c(),{value:e,done:!1}}if(u)return{value:void 0,done:!0};yield a}})},return(){return p(this,null,function*(){return m=!0,f=!0,c(),o(),v(),{value:void 0,done:!0}})},throw(e){return p(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(e,t){(e=>{if(!(Symbol.iterator in e)&&!(Symbol.asyncIterator in e))throw new TypeError("Argument must be an iterable or async iterable.")})(e);const i=function(e){return k(this,null,function*(){Symbol.iterator in e?yield*y(e[Symbol.iterator]()):yield*y(e[Symbol.asyncIterator]())})}(e),r=[],n=[];let{promise:s,resolve:a}=$(),{promise:o,resolve:l}=$(),c=!1,u=!1,f=null,m=null,g=!1;const T=e=>{n.push(e),a(),({promise:s,resolve:a}=$())},v=h(d({},t),{verifyKeyPackets:!0,metadataOnly:!1});(()=>p(this,null,function*(){f=yield this._createDecoder(e=>{if(l(),u)return void e.close();let t=0;for(;r.length>0&&e.timestamp-r[0]>-1e-10;)t++,r.shift();if(t>0)for(let i=0;i{g||(m=e,g=!0,a())});const e=this._createPacketSink();let t=null,s=null,d=-1;const h=()=>p(this,null,function*(){S(s),S(f);let t=s;for(f.decode(t);t.sequenceNumberi&&!u;)({promise:o,resolve:l}=$()),yield o;if(u)break;const r=yield e.getNextPacket(t,v);S(r),f.decode(r),t=r}d=-1}),k=()=>p(this,null,function*(){S(f),yield f.flush();for(let e=0;e{g||(m=e,g=!0,a())}).finally(()=>{null==f||f.close()});const w=this._track,P=()=>{for(const e of n)null==e||e.close()};return{next(){return p(this,null,function*(){for(;;){if(w.input._disposed)throw u=!0,P(),new Ro;if(u)return{value:void 0,done:!0};if(g)throw u=!0,P(),m;if(n.length>0){const e=n.shift();return S(void 0!==e),l(),{value:e,done:!1}}if(c)return{value:void 0,done:!0};yield s}})},return(){return p(this,null,function*(){return u=!0,l(),a(),P(),{value:void 0,done:!0}})},throw(e){return p(this,null,function*(){throw e})},[Symbol.asyncIterator](){return this}}}}const io=e=>0===e?40:8;class ro extends eo{constructor(e,t,i,r,n,s){var a,o,l,c,u,f,m,p;super(e,t),this.codec=i,this.decoderConfig=r,this.rotation=n,this.timeResolution=s,this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new pe,this.customDecoderQueueSize=0,this.inputTimestamps=[],this.sampleQueue=[],this.currentPacketIndex=0,this.raslSkipped=!1,this.alphaDecoder=null,this.alphaHadKeyframe=!1,this.colorQueue=[],this.alphaQueue=[],this.merger=null,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue=[],this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1,this.finalSamples=[],this.mergeAlphaPromises=[];const g=$a.find(e=>e.supports(i,r));if(g)this.customDecoder=new g,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof wa))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=e=>{if(this.alphaQueue.length>0){const t=this.alphaQueue.shift();S(void 0!==t),this.mergeAlpha(e,t)}else this.colorQueue.push(e)};if(ve()){if("avc"===i&&this.decoderConfig.description){const e=dt(B(this.decoderConfig.description));if(e&&e.sequenceParameterSets.length>0){const t=ft(e.sequenceParameterSets[0]);t&&(0===t.frameMbsOnlyFlag&&(this.decoderConfig=h(d({},this.decoderConfig),{hardwareAcceleration:"prefer-software"})),0!==t.maxDecFrameBuffering&&1!==t.bitstreamRestrictionFlag&&(e.sequenceParameterSets[0]=pt(t),this.decoderConfig=h(d({},this.decoderConfig),{description:ut(e)})))}}L(this.decoderConfig.colorSpace)||(this.decoderConfig=h(d({},this.decoderConfig),{colorSpace:{primaries:null!=(o=null==(a=this.decoderConfig.colorSpace)?void 0:a.primaries)?o:"bt709",matrix:null!=(c=null==(l=this.decoderConfig.colorSpace)?void 0:l.matrix)?c:"bt709",transfer:null!=(f=null==(u=this.decoderConfig.colorSpace)?void 0:u.transfer)?f:"bt709",fullRange:null!=(p=null==(m=this.decoderConfig.colorSpace)?void 0:m.fullRange)&&p}}))}const t=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){var e,t;return this.customDecoder?this.customDecoderQueueSize:(S(this.decoder),Math.max(this.decoder.decodeQueueSize,null!=(t=null==(e=this.alphaDecoder)?void 0:e.decodeQueueSize)?t:0))}decode(e){if("hevc"===this.codec&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--);else{if(S(this.decoder),ke()||X(this.inputTimestamps,e.timestamp,e=>e),ve()&&0===this.currentPacketIndex)if("avc"===this.codec){const t=[];let i=!1;for(const n of rt(e.data,this.decoderConfig)){const r=nt(e.data[n.offset]);if(i||(i=r>=1&&r<=5),r===Ye.AUD){if(i)break;t.length=0}r>=20&&r<=31||t.push(e.data.subarray(n.offset,n.offset+n.length))}if(!this.decoderConfig.description)for(let e=0;e{if(t.description){const i=3&B(t.description)[4];return lt(e,i+1)}return ot(e)})(t,this.decoderConfig);e=new Mi(r,e.type,e.timestamp,e.duration)}else if("hevc"===this.codec){const t=Et(e.data,this.decoderConfig);t&&(e=new Mi(t,e.type,e.timestamp,e.duration))}this.decoder.decode(e.toEncodedVideoChunk()),this.decodeAlphaData(e)}this.currentPacketIndex++}decodeAlphaData(e){if(!e.sideData.alpha)return void this.pushNullAlphaFrame();if(this.merger||(this.merger=new so),!this.alphaDecoder){const e=e=>{if(this.colorQueue.length>0){const t=this.colorQueue.shift();S(void 0!==t),this.mergeAlpha(t,e)}else this.alphaQueue.push(e);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){const e=this.colorQueue.shift();S(void 0!==e),this.mergeAlpha(e,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},t=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:t=>{try{e(t)}catch(i){this.onError(i)}},error:e=>{e.stack=t,this.onError(e)}}),this.alphaDecoder.configure(this.decoderConfig)}const t=Ot(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe="key"===t),this.alphaHadKeyframe){if("hevc"===this.codec&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha))return void this.pushNullAlphaFrame();this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(null!=t?t:e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){0===this.alphaDecoderQueueSize?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(const t of gt(e,this.decoderConfig)){const i=kt(e[t.offset]);if(i===Ze.RASL_N||i===Ze.RASL_R)return!0}return!1}sampleHandler(e){if(ke()){if(this.sampleQueue.length>0&&e.timestamp>=P(this.sampleQueue).timestamp){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}X(this.sampleQueue,e,e=>e.timestamp)}else{const t=this.inputTimestamps.shift();S(void 0!==t),e.setTimestamp(t),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),this.onSample(e)}mergeAlpha(e,t){return p(this,null,function*(){const i=$();this.mergeAlphaPromises.push(i.promise);const r={sample:null};this.finalSamples.push(r);try{if(t){S(this.merger);const i=yield this.merger.merge(e,t);r.sample=new wa(i)}else r.sample=new wa(e);for(;this.finalSamples.length>0&&null!==this.finalSamples[0].sample;){const e=this.finalSamples.shift();this.sampleHandler(e.sample)}}catch(n){G(this.finalSamples,r),this.onError(n)}finally{G(this.mergeAlphaPromises,i.promise),i.resolve()}})}flush(){return p(this,null,function*(){var e;if(this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(S(this.decoder),yield Promise.all([this.decoder.flush(),null==(e=this.alphaDecoder)?void 0:e.flush()]),yield Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,this.alphaHadKeyframe=!1,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue.length=0,this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1),ke()){for(const e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1})}close(){var e;this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(S(this.decoder),"closed"!==this.decoder.state&&this.decoder.close(),this.alphaDecoder&&"closed"!==this.alphaDecoder.state&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>null==e?void 0:e.close()),this.alphaQueue.length=0,null==(e=this.merger)||e.close());for(const t of this.sampleQueue)t.close();this.sampleQueue.length=0}}let no=null;class so{constructor(){this.workers=[],this.nextWorkerIndex=0,this.pendingRequests=new Map,this.nextRequestId=0}merge(e,t){if(0===this.workers.length){if(!no){const e=new Blob([`(${ao.toString()})()`],{type:"application/javascript"});no=URL.createObjectURL(e)}const e=ie(navigator.hardwareConcurrency,1,4);for(let t=0;t{const t=e.data,i=this.pendingRequests.get(t.id);i&&(this.pendingRequests.delete(t.id),"error"in t?i.reject(new Error(t.error)):i.resolve(t.frame))}),e.addEventListener("error",e=>{const t=new Error(e.message||"Color/alpha merge worker error.");for(const i of this.pendingRequests.values())i.reject(t);this.pendingRequests.clear()}),this.workers.push(e)}}const i=this.nextRequestId++,r=$();this.pendingRequests.set(i,r);const n=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,n.postMessage({id:i,color:e,alpha:t},{transfer:[e,t]}),r.promise}close(){for(const t of this.workers)t.terminate();this.workers.length=0;const e=new Error("Color/alpha merger closed.");for(const t of this.pendingRequests.values())t.reject(e);this.pendingRequests.clear()}}const ao=()=>{let e=null,t=null,i=Promise.resolve();self.addEventListener("message",e=>{const{id:t,color:n,alpha:s}=e.data;i=i.then(()=>p(null,null,function*(){try{const e=yield r(n,s);self.postMessage({id:t,frame:e},{transfer:[e]})}catch(e){self.postMessage({id:t,error:e.message})}finally{n.close(),s.close()}}))});const r=(e,t)=>p(null,null,function*(){const i=e.format,r=t.format;if(!i||!r)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");const o=i.includes("P10"),l=i.includes("P12"),c=r.includes("P10"),u=r.includes("P12");if(c!==o||u!==l)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${i}', alpha: '${r}').`);if("RGBX"===i||"RGBA"===i||"BGRX"===i||"BGRA"===i)return yield n(e,t,i);if("I420"===i||"I420P10"===i||"I420P12"===i||"I422"===i||"I422P10"===i||"I422P12"===i||"I444"===i||"I444P10"===i||"I444P12"===i)return yield s(e,t,i);if("NV12"===i)return yield a(e,t);throw new Error(`CPU color/alpha merging does not support format '${i}'.`)}),n=(e,t,i)=>p(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=new Uint8Array(4*d);yield e.copyTo(h);const f=yield o(t,c,u,1);for(let e=0,t=3;ep(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=i.includes("P10"),h=i.includes("P12"),f=d||h?2:1;let m,p;i.startsWith("I420")?(m=Math.ceil(c/2),p=Math.ceil(u/2)):i.startsWith("I422")?(m=Math.ceil(c/2),p=u):(m=c,p=u);const g=c*u,k=g*f,y=m*p*f,b=new Uint8Array(k+2*y+g*f);yield e.copyTo(b);const T=yield o(t,c,u,f),v=k+2*y;b.set(T,v);const S={format:i.slice(0,4)+"A"+i.slice(4),codedWidth:c,codedHeight:u,timestamp:e.timestamp,duration:null!=(l=e.duration)?l:void 0,transfer:[b.buffer]};return new VideoFrame(b,S)}),a=(e,i)=>p(null,null,function*(){var r,n,s,a,l;const c=null!=(n=null==(r=e.visibleRect)?void 0:r.width)?n:e.codedWidth,u=null!=(a=null==(s=e.visibleRect)?void 0:s.height)?a:e.codedHeight,d=c*u,h=Math.ceil(c/2)*Math.ceil(u/2),f=e.allocationSize();t&&t.byteLength===f||(t=new Uint8Array(f)),yield e.copyTo(t);const m=new Uint8Array(d+2*h+d);m.set(t.subarray(0,d),0);const p=d,g=d+h,k=d;for(let e=0;ep(null,null,function*(){const s=t.allocationSize();e&&e.byteLength===s||(e=new Uint8Array(s)),yield t.copyTo(e);const a=t.format;if("RGBA"===a||"BGRA"===a||"RGBX"===a||"BGRX"===a){const t="RGBA"===a||"RGBX"===a?0:2,n=i*r;for(let i=0;i{if(!e||"object"!==typeof e)throw new TypeError("decoderOptions must be an object.");if(void 0!==e.hardwareAcceleration&&!["no-preference","prefer-hardware","prefer-software"].includes(e.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(void 0!==e.optimizeForLatency&&"boolean"!==typeof e.optimizeForLatency)throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")};class lo extends to{constructor(e,t={}){if(!(e instanceof yo))throw new TypeError("videoTrack must be an InputVideoTrack.");oo(t),super(),this._track=e,this._decoderOptions=t}_createDecoder(e,t){return p(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof VideoDecoder)throw new Error(Se("VideoDecoder"));throw new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getRotation();let n=yield this._track.getDecoderConfig();const s=yield this._track.getTimeResolution();return S(i&&n),n=h(d({},n),{hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency}),new ro(e,t,i,n,r,s)})}_createPacketSink(){return new Za(this._track)}getSample(e){return p(this,arguments,function*(e,t={}){Ya(e);try{for(var i,r,n,s=b(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class co{constructor(e,t={}){var i,r,n;if(this._rotation=0,this._initPromise=null,this._nextCanvasIndex=0,!(e instanceof yo))throw new TypeError("videoTrack must be an InputVideoTrack.");if(t&&"object"!==typeof t)throw new TypeError("options must be an object.");if(void 0!==t.alpha&&"boolean"!==typeof t.alpha)throw new TypeError("options.alpha, when provided, must be a boolean.");if(void 0!==t.width&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(void 0!==t.height&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(void 0!==t.fit&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(void 0!==t.width&&void 0!==t.height&&void 0===t.fit)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(void 0!==t.rotation&&![0,90,180,270].includes(t.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(void 0!==t.crop&&Ra(t.crop,"options."),void 0!==t.poolSize&&("number"!==typeof t.poolSize||!Number.isInteger(t.poolSize)||t.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");void 0!==t.decoderOptions&&oo(t.decoderOptions),this._videoTrack=e,this._alpha=null!=(i=t.alpha)&&i,this._options=t,this._fit=null!=(r=t.fit)?r:"fill",this._videoSampleSink=new lo(e,t.decoderOptions),this._canvasPool=Array.from({length:null!=(n=t.poolSize)?n:0},()=>null)}_ensureInit(){var e;return null!=(e=this._initPromise)?e:this._initPromise=(()=>p(this,null,function*(){var e;const t=this._options,i=this._videoTrack,r=null!=(e=t.rotation)?e:yield i.getRotation(),n=yield i.getSquarePixelWidth(),s=yield i.getSquarePixelHeight(),[a,o]=r%180===0?[n,s]:[s,n];let l=t.crop;l&&(l=_a(l,a,o));let[c,u]=l?[l.width,l.height]:[a,o];const d=c/u;void 0!==t.width&&void 0===t.height?(c=t.width,u=Math.round(c/d)):void 0===t.width&&void 0!==t.height?(u=t.height,c=Math.round(u*d)):void 0!==t.width&&void 0!==t.height&&(c=t.width,u=t.height),this._width=c,this._height=u,this._rotation=r,this._crop=l}))()}_videoSampleToWrappedCanvas(e){const t=this._width,i=this._height;let r=this._canvasPool[this._nextCanvasIndex],n=!1;r||("undefined"!==typeof document?(r=document.createElement("canvas"),r.width=t,r.height=i):r=new OffscreenCanvas(t,i),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=r),n=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);const s=r.getContext("2d",{alpha:this._alpha||be()});S(s),e._drawWithFitAndMipmapping(r,s,{fit:this._fit,rotation:this._rotation,crop:this._crop,targetIsFresh:n,fillBlack:!this._alpha&&be()});const a={canvas:r,timestamp:e.timestamp,duration:e.duration};return e.close(),a}getCanvas(e,t){return p(this,null,function*(){Ya(e),yield this._ensureInit();const i=yield this._videoSampleSink.getSample(e,t);return i&&this._videoSampleToWrappedCanvas(i)})}canvases(e,t,i){return k(this,null,function*(){yield new g(this._ensureInit()),yield*y(te(this._videoSampleSink.samples(e,t,i),e=>this._videoSampleToWrappedCanvas(e)))})}canvasesAtTimestamps(e,t){return k(this,null,function*(){yield new g(this._ensureInit()),yield*y(te(this._videoSampleSink.samplesAtTimestamps(e,t),e=>e&&this._videoSampleToWrappedCanvas(e)))})}}class uo extends eo{constructor(e,t,i,r){super(e,t),this.decoder=null,this.customDecoder=null,this.customDecoderCallSerializer=new pe,this.customDecoderQueueSize=0,this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0;const n=t=>{let i=t.timestamp;null!==this.expectedFirstTimestamp&&null===this.currentTimestamp&&(this.timestampOffset=this.expectedFirstTimestamp-i),i+=this.timestampOffset,(null===this.currentTimestamp||Math.abs(i-this.currentTimestamp)>=t.duration)&&(this.currentTimestamp=i);const n=this.currentTimestamp;if(this.currentTimestamp+=t.duration,0===t.numberOfFrames)return void t.close();const s=r.sampleRate;t.setTimestamp(Math.round(n*s)/s),e(t)},s=Ga.find(e=>e.supports(i,r));if(s)this.customDecoder=new s,this.customDecoder.codec=i,this.customDecoder.config=r,this.customDecoder.onSample=e=>{if(!(e instanceof qa))throw new TypeError("The argument passed to onSample must be an AudioSample.");n(e)},this.customDecoder.onError=e=>{t(e)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(e=>t(e));else{const e=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:e=>{try{n(new qa(e))}catch(t){this.onError(t)}},error:t=>{t.stack=e,this.onError(t)}}),this.decoder.configure(r)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(S(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(e=>this.onError(e)).finally(()=>this.customDecoderQueueSize--)):(S(this.decoder),null!=this.expectedFirstTimestamp||(this.expectedFirstTimestamp=e.timestamp),this.decoder.decode(e.toEncodedAudioChunk()))}flush(){return p(this,null,function*(){this.customDecoder?yield this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(S(this.decoder),yield this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0})}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(S(this.decoder),"closed"!==this.decoder.state&&this.decoder.close())}}class ho extends eo{constructor(e,t,i){super(e,t),this.decoderConfig=i,this.currentTimestamp=null,S(li.includes(i.codec)),this.codec=i.codec;const{dataType:r,sampleSize:n,littleEndian:s}=vi(this.codec);switch(this.inputSampleSize=n,n){case 1:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint8(t)-c(2,7):"signed"===r?this.readInputValue=(e,t)=>e.getInt8(t):"ulaw"===r?this.readInputValue=(e,t)=>(e=>{let t=0,i=0,r=~e;128&r&&(r&=-129,t=-1),i=5+((240&r)>>4);const n=(1<(e=>{let t=0,i=0,r=85^e;128&r&&(r&=-129,t=-1),i=4+((240&r)>>4);let n=0;return n=4!==i?1<e.getUint16(t,s)-c(2,15):"signed"===r?this.readInputValue=(e,t)=>e.getInt16(t,s):S(!1);break;case 3:"unsigned"===r?this.readInputValue=(e,t)=>Z(e,t,s)-c(2,23):"signed"===r?this.readInputValue=(e,t)=>((e,t,i)=>Z(e,t,i)<<8>>8)(e,t,s):S(!1);break;case 4:"unsigned"===r?this.readInputValue=(e,t)=>e.getUint32(t,s)-c(2,31):"signed"===r?this.readInputValue=(e,t)=>e.getInt32(t,s):"float"===r?this.readInputValue=(e,t)=>e.getFloat32(t,s):S(!1);break;case 8:"float"===r?this.readInputValue=(e,t)=>e.getFloat64(t,s):S(!1);break;default:J(n),S(!1)}switch(n){case 1:"ulaw"===r||"alaw"===r?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(e,t,i)=>e.setUint8(t,i+c(2,7)));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(e,t,i)=>e.setInt16(t,i,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i<<8,!0);break;case 4:this.outputSampleSize=4,"float"===r?(this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0)):(this.outputFormat="s32",this.writeOutputValue=(e,t,i)=>e.setInt32(t,i,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(e,t,i)=>e.setFloat32(t,i,!0);break;default:J(n),S(!1)}}getDecodeQueueSize(){return 0}decode(e){const t=E(e.data),i=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,r=i*this.decoderConfig.numberOfChannels*this.outputSampleSize,n=new ArrayBuffer(r),s=new DataView(n);for(let c=0;c=a)&&(this.currentTimestamp=e.timestamp);const o=this.currentTimestamp;this.currentTimestamp+=a;const l=new qa({format:this.outputFormat,data:n,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:i,timestamp:o});this.onSample(l)}flush(){return p(this,null,function*(){})}close(){}}class fo extends to{constructor(e){if(!(e instanceof bo))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=e}_createDecoder(e,t){return p(this,null,function*(){if(!(yield this._track.canDecode())){if("undefined"===typeof AudioDecoder)throw new Error(Se("AudioDecoder"));throw new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.")}const i=yield this._track.getCodec(),r=yield this._track.getDecoderConfig();return S(i&&r),li.includes(r.codec)?new ho(e,t,r):new uo(e,t,i,r)})}_createPacketSink(){return new Za(this._track)}getSample(e){return p(this,arguments,function*(e,t={}){Ya(e);try{for(var i,r,n,s=b(this.mediaSamplesAtTimestamps([e],t));i=!(r=yield s.next()).done;i=!1){return r.value}}catch(r){n=[r]}finally{try{i&&(r=s.return)&&(yield r.call(s))}finally{if(n)throw n[0]}}throw new Error("Internal error: Iterator returned nothing.")})}samples(e,t,i={}){return this.mediaSamplesInRange(e,t,i)}samplesAtTimestamps(e,t={}){return this.mediaSamplesAtTimestamps(e,t)}}class mo{constructor(e){if(!(e instanceof bo))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new fo(e)}_audioSampleToWrappedArrayBuffer(e){const t={buffer:e.toAudioBuffer(),timestamp:e.timestamp,duration:e.duration};return e.close(),t}getBuffer(e,t){return p(this,null,function*(){Ya(e);const i=yield this._audioSampleSink.getSample(e,t);return i&&this._audioSampleToWrappedArrayBuffer(i)})}buffers(e,t,i){return te(this._audioSampleSink.samples(e,t,i),e=>this._audioSampleToWrappedArrayBuffer(e))}buffersAtTimestamps(e,t){return te(this._audioSampleSink.samplesAtTimestamps(e,t),e=>e&&this._audioSampleToWrappedArrayBuffer(e))}}class po{constructor(e,t){this.input=e,this._backing=t}isVideoTrack(){return this instanceof yo}isAudioTrack(){return this instanceof bo}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}getInternalCodecId(){return p(this,null,function*(){return this._backing.getInternalCodecId()})}get internalCodecId(){return go(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}getLanguageCode(){return p(this,null,function*(){return this._backing.getLanguageCode()})}get languageCode(){return go(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}getName(){return p(this,null,function*(){return this._backing.getName()})}get name(){return go(this._backing.getName(),"name","getName")}getTimeResolution(){return p(this,null,function*(){return this._backing.getTimeResolution()})}get timeResolution(){return go(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}isRelativeToUnixEpoch(){return p(this,null,function*(){return this._backing.isRelativeToUnixEpoch()})}getUnixTimeForTimestamp(e){return p(this,null,function*(){return this._backing.getUnixTimeForTimestamp(e)})}hasUnixTimeMapping(){return p(this,null,function*(){return null!==(yield this._backing.getUnixTimeForTimestamp(yield this.getFirstTimestamp()))})}getDisposition(){return p(this,null,function*(){return this._backing.getDisposition()})}get disposition(){return go(this._backing.getDisposition(),"disposition","getDisposition")}getBitrate(){return p(this,null,function*(){return this._backing.getBitrate()})}getAverageBitrate(){return p(this,null,function*(){return this._backing.getAverageBitrate()})}getFirstTimestamp(){return p(this,null,function*(){var e;const t=yield this._backing.getFirstPacket({metadataOnly:!0});return null!=(e=null==t?void 0:t.timestamp)?e:0})}computeDuration(e){return p(this,null,function*(){var t,i;const r=yield this._backing.getPacket(1/0,d({metadataOnly:!0},e)),n=(null!=(t=null==r?void 0:r.timestamp)?t:0)+(null!=(i=null==r?void 0:r.duration)?i:0);return ae(n,yield this.getTimeResolution())})}getDurationFromMetadata(){return p(this,arguments,function*(e={}){return this._backing.getDurationFromMetadata(e)})}computePacketStats(e=1/0,t){return p(this,null,function*(){const i=new Za(this);let r=1/0,n=-1/0,s=0,a=0;try{for(var o,l,c,u=b(i.packets(void 0,void 0,d({metadataOnly:!0},t)));o=!(l=yield u.next()).done;o=!1){const t=l.value;if(s>=e&&t.timestamp>=n)break;r=Math.min(r,t.timestamp),n=Math.max(n,t.timestamp+t.duration),s++,a+=t.byteLength}}catch(l){c=[l]}finally{try{o&&(l=u.return)&&(yield l.call(u))}finally{if(c)throw c[0]}}return{packetCount:s,averagePacketRate:s?Number((s/(n-r)).toPrecision(16)):0,averageBitrate:s?Number((8*a/(n-r)).toPrecision(16)):0}})}isLive(){return p(this,null,function*(){return null!==(yield this._backing.getLiveRefreshInterval())})}getLiveRefreshInterval(){return p(this,null,function*(){return this._backing.getLiveRefreshInterval()})}canBePairedWith(e){if(!(e instanceof po))throw new TypeError("other must be an InputTrack.");return this.input===e.input&&this!==e&&(this._backing.getPairingMask()&e._backing.getPairingMask())!==BigInt("0")}getPairableTracks(e){return p(this,null,function*(){return this.input.getTracks(wo({filter:e=>e.canBePairedWith(this)},e))})}getPairableVideoTracks(e){return p(this,null,function*(){return this.input.getVideoTracks(wo({filter:e=>e.canBePairedWith(this)},e))})}getPairableAudioTracks(e){return p(this,null,function*(){return this.input.getAudioTracks(wo({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableVideoTrack(e){return p(this,null,function*(){return this.input.getPrimaryVideoTrack(wo({filter:e=>e.canBePairedWith(this)},e))})}getPrimaryPairableAudioTrack(e){return p(this,null,function*(){return this.input.getPrimaryAudioTrack(wo({filter:e=>e.canBePairedWith(this)},e))})}hasPairableTrack(e){return p(this,null,function*(){e&&(e=ko(e));const t=yield this.input.getTracks();for(const i of t)if(this.canBePairedWith(i)&&(!e||(yield e(i))))return!0;return!1})}hasPairableVideoTrack(e){return e&&(e=ko(e)),this.hasPairableTrack(t=>p(this,null,function*(){return t.isVideoTrack()&&(!e||(yield e(t)))}))}hasPairableAudioTrack(e){return e&&(e=ko(e)),this.hasPairableTrack(t=>p(this,null,function*(){return t.isAudioTrack()&&(!e||(yield e(t)))}))}}const go=(e,t,i)=>{if(Pe(e))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${i}()' instead.`);return e},ko=e=>{if(void 0!==e&&"function"!==typeof e)throw new TypeError("predicate, when provided, must be a function.");return e?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("predicate must return or resolve to a boolean value.");return e},r=e(t);return Pe(r)?r.then(i):i(r)}:void 0};class yo extends po{constructor(e,t){super(e,t),this._pixelAspectRatioCache=null,this._backing=t}get type(){return"video"}getCodec(){return p(this,null,function*(){return this._backing.getCodec()})}get codec(){return go(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return p(this,null,function*(){var e,t,i;return null!=(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))?i:"prores"===(yield this._backing.getCodec())})}getCodedWidth(){return p(this,null,function*(){return this._backing.getCodedWidth()})}get codedWidth(){return go(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}getCodedHeight(){return p(this,null,function*(){return this._backing.getCodedHeight()})}get codedHeight(){return go(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}getRotation(){return p(this,null,function*(){return this._backing.getRotation()})}get rotation(){return go(this._backing.getRotation(),"rotation","getRotation")}getSquarePixelWidth(){return p(this,null,function*(){return this._backing.getSquarePixelWidth()})}get squarePixelWidth(){return go(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}getSquarePixelHeight(){return p(this,null,function*(){return this._backing.getSquarePixelHeight()})}get squarePixelHeight(){return go(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}getPixelAspectRatio(){return p(this,null,function*(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=Ae({num:(yield this.getSquarePixelWidth())*(yield this.getCodedHeight()),den:(yield this.getSquarePixelHeight())*(yield this.getCodedWidth())})})}get pixelAspectRatio(){var e;return null!=(e=this._pixelAspectRatioCache)?e:this._pixelAspectRatioCache=Ae({num:go(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*go(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:go(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*go(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")})}getDisplayWidth(){return p(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight()})}get displayWidth(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayWidth)?void 0:t.call(e);if(void 0!==i){const e=go(i,"displayWidth","getDisplayWidth");if(null!==e)return e}const r=go(this._backing.getRotation(),"displayWidth","getDisplayWidth")%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return go(r,"displayWidth","getDisplayWidth")}getDisplayHeight(){return p(this,null,function*(){var e,t;const i=yield null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(null!=i)return i;return(yield this.getRotation())%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth()})}get displayHeight(){var e,t;const i=null==(t=(e=this._backing).getMetadataDisplayHeight)?void 0:t.call(e);if(void 0!==i){const e=go(i,"displayHeight","getDisplayHeight");if(null!==e)return e}const r=go(this._backing.getRotation(),"displayHeight","getDisplayHeight")%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return go(r,"displayHeight","getDisplayHeight")}getColorSpace(){return p(this,null,function*(){return this._backing.getColorSpace()})}hasHighDynamicRange(){return p(this,null,function*(){const e=yield this._backing.getColorSpace();return"bt2020"===e.primaries||"smpte432"===e.primaries||"pq"===e.transfer||"hlg"===e.transfer||"bt2020-ncl"===e.matrix})}canBeTransparent(){return p(this,null,function*(){return this._backing.canBeTransparent()})}getDecoderConfig(){return p(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return p(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return p(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(S(null!==t),$a.some(i=>i.supports(t,e)))return!0;if("undefined"===typeof VideoDecoder)return!1;return!0===(yield VideoDecoder.isConfigSupported(e)).supported}catch(e){return ze._error("Error during decodability check:",e),!1}})}determinePacketType(e){return p(this,null,function*(){if(!(e instanceof Mi))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");const t=yield this.getCodec();if(null===t)return null;const i=yield this.getDecoderConfig();return S(i),Ot(t,i,e.data)})}computeFrameRateMetrics(){return p(this,arguments,function*(e={}){var t,i;if(!e||"object"!==typeof e)throw new TypeError("options must be an object.");if(void 0!==e.targetPacketCount&&(!Ee(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");const r=yield this.getTimeResolution(),n=null!=(t=e.targetPacketCount)?t:256,s=new Za(this),a=[];let o=-1/0,l=0;try{for(var c,u,d,h=b(s.packets(void 0,void 0,{metadataOnly:!0}));c=!(u=yield h.next()).done;c=!1){const e=u.value;if(a.length>=n&&e.timestamp>=o)break;a.push(e.timestamp),o=Math.max(o,e.timestamp),l++}}catch(u){d=[u]}finally{try{c&&(u=h.return)&&(yield u.call(h))}finally{if(d)throw d[0]}}const f=new Float64Array(a.length);for(let b=0;be-t),x=P-1>>1,C=P>>1;let B=0,E=0,_=0;for(const b of I)if(_+=T.get(b),0===B&&_>x&&(B=b),_>C){E=b;break}const R=(k/B+k/E)/2;return{underlyingFrameRate:g,bestGuessFrameRate:null!==g?g:Co(R),minFrameRate:k/S,maxFrameRate:k/v,averageFrameRate:k*P/w,medianFrameRate:R,frameRateIsConstant:null!==g&&1===v&&1===S,probedPacketCount:l}})}}class bo extends po{constructor(e,t){super(e,t),this._backing=t}get type(){return"audio"}getCodec(){return p(this,null,function*(){return this._backing.getCodec()})}get codec(){return go(this._backing.getCodec(),"codec","getCodec")}hasOnlyKeyPackets(){return p(this,null,function*(){var e,t,i;return null==(i=yield null==(t=(e=this._backing).getHasOnlyKeyPackets)?void 0:t.call(e))||i})}getNumberOfChannels(){return p(this,null,function*(){return this._backing.getNumberOfChannels()})}get numberOfChannels(){return go(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}getSampleRate(){return p(this,null,function*(){return this._backing.getSampleRate()})}get sampleRate(){return go(this._backing.getSampleRate(),"sampleRate","getSampleRate")}getDecoderConfig(){return p(this,null,function*(){return this._backing.getDecoderConfig()})}getCodecParameterString(){return p(this,null,function*(){var e,t,i;const r=yield null==(t=(e=this._backing).getMetadataCodecParameterString)?void 0:t.call(e);if(null!=r)return r;const n=yield this._backing.getDecoderConfig();return null!=(i=null==n?void 0:n.codec)?i:null})}canDecode(){return p(this,null,function*(){try{const e=yield this._backing.getDecoderConfig();if(!e)return!1;const t=yield this._backing.getCodec();if(S(null!==t),Ga.some(i=>i.supports(t,e)))return!0;if(e.codec.startsWith("pcm-"))return!0;if("undefined"===typeof AudioDecoder)return!1;return!0===(yield AudioDecoder.isConfigSupported(e)).supported}catch(e){return ze._error("Error during decodability check:",e),!1}})}determinePacketType(e){return p(this,null,function*(){if(!(e instanceof Mi))throw new TypeError("packet must be an EncodedPacket.");return null===(yield this.getCodec())?null:"key"})}}const To=e=>-(null!=e?e:-1/0),vo=e=>-e,So=e=>{if("object"!==typeof e||!e)throw new TypeError("query must be an object.");if(void 0!==e.filter&&"function"!==typeof e.filter)throw new TypeError("query.filter, when provided, must be a function.");if(void 0!==e.sortBy&&"function"!==typeof e.sortBy)throw new TypeError("query.sortBy, when provided, must be a function.");return{filter:e.filter?t=>{const i=e=>{if("boolean"!==typeof e)throw new TypeError("query.filter must return or resolve to a boolean.");return e},r=e.filter(t);return Pe(r)?r.then(i):i(r)}:void 0,sortBy:e.sortBy?t=>{const i=e=>{if("number"!==typeof e&&(!Array.isArray(e)||!e.every(e=>"number"===typeof e)))throw new TypeError("query.sortBy must return or resolve to a number or an array of numbers.");return e},r=e.sortBy(t);return Pe(r)?r.then(i):i(r)}:void 0}},wo=(e,t)=>({filter:(null==e?void 0:e.filter)||(null==t?void 0:t.filter)?i=>{var r,n;const s=null==(n=null==(r=null==e?void 0:e.filter)?void 0:r.call(e,i))||n,a=e=>{var r,n;return!1!==e&&(null==(n=null==(r=null==t?void 0:t.filter)?void 0:r.call(t,i))||n)};return Pe(s)?s.then(a):a(s)}:void 0,sortBy:(null==e?void 0:e.sortBy)||(null==t?void 0:t.sortBy)?i=>{var r,n,s,a;const o=null!=(n=null==(r=null==e?void 0:e.sortBy)?void 0:r.call(e,i))?n:[],l=null!=(a=null==(s=null==t?void 0:t.sortBy)?void 0:s.call(t,i))?a:[],c=(e,t)=>[...Array.isArray(e)?e:[e],...Array.isArray(t)?t:[t]];return Pe(o)||Pe(l)?Promise.all([o,l]).then(([e,t])=>c(e,t)):c(o,l)}:void 0}),Po=(e,t)=>p(null,null,function*(){let i=e;if(null==t?void 0:t.filter){const r=e.map(e=>t.filter(e));if(r.some(e=>Pe(e))){const t=yield Promise.all(r);i=e.filter((e,i)=>t[i])}else i=e.filter((e,t)=>r[t])}if(!(null==t?void 0:t.sortBy))return i;const r=i.map(e=>t.sortBy(e)),n=r.some(e=>Pe(e))?yield Promise.all(r):r;return i.map((e,t)=>({track:e,sortValue:n[t]})).sort((e,t)=>{var i,r;const n=Array.isArray(e.sortValue)?e.sortValue:[e.sortValue],s=Array.isArray(t.sortValue)?t.sortValue:[t.sortValue],a=Math.max(n.length,s.length);for(let o=0;oe.track)}),Io=(e,t)=>{const i=1e6,r=1+1e-9,n=[12,15,20,24e3/1001,24,25,3e4/1001,30,48,50,6e4/1001,60,100,12e4/1001,120,144,240];if(e.length<2)return null;const s=new Float64Array(e.length-1);for(let v=1;v0))return null;s[v-1]=t}const a=s.slice();a.sort();let o=a[Math.floor(.05*a.length)];for(let v=0;v<6;v++){let e=0,t=0;for(const n of s){const i=Math.max(1,Math.round(n/o));Math.abs(n-i*o)>=r||(e+=n,t+=i)}if(0===t)return null;const i=e/t;if(Math.abs(i-o)<=1e-12*Math.max(1,o)){o=i;break}o=i}let l=0,c=0,u=0;for(const v of s){const e=Math.max(1,Math.round(v/o));Math.abs(v-e*o)>=r||(l++,c+=v,u+=e)}if(l/s.length<.98)return null;o=c/u;const d=1/Math.min(u,1e3),h=Math.max(Number.EPSILON,o-d),f=o+d,m=t/f,p=t/h,g=t/o;let k=null,y=1/0;for(const v of n){if(vp)continue;const e=Math.abs(v/g-1);e{for(let r=1;r<=i;r++){const i=Math.floor(e*r)+1;if(i/r{const t=[24/1.001,30/1.001,60/1.001,120/1.001],i=[12,15,20,24,25,30,48,50,60,100,120,144,240];for(const s of t)if(Math.abs(s/e-1)<=5e-4)return s;let r=e,n=1/0;for(const s of i){const t=Math.abs(s/e-1);t<=.025&&t!(e instanceof Vs)))throw new TypeError("options.formats must be an array of InputFormat.");if(!(e.source instanceof ps||e.source instanceof gs))throw new TypeError("options.source must be a Source or SourceRef.");if(e.source instanceof ps&&e.source._disposed)throw new TypeError("options.source must not be a disposed Source.");if(void 0!==e.initInput&&!(e.initInput instanceof Eo))throw new TypeError("options.initInput, when provided, must be an Input.");void 0!==e.formatOptions&&((e,t)=>{if(!e||"object"!==typeof e)throw new TypeError(`${t}, when provided, must be an object.`);if(void 0!==e.isobmff){if(!e.isobmff||"object"!==typeof e.isobmff)throw new TypeError(`${t}.isobmff, when provided, must be an object.`);if(void 0!==e.isobmff.resolveKeyId&&"function"!==typeof e.isobmff.resolveKeyId)throw new TypeError(`${t}.isobmff.resolveKeyId, when provided, must be a function.`)}if(void 0!==e.hls){if(!e.hls||"object"!==typeof e.hls)throw new TypeError(`${t}.hls, when provided, must be an object.`);if(void 0!==e.hls.offsetTimestampsByDateTime&&"boolean"!==typeof e.hls.offsetTimestampsByDateTime)throw new TypeError(`${t}.hls.offsetTimestampsByDateTime, when provided, must be a boolean.`)}})(e.formatOptions,"formatOptions"),this._formats=e.formats,this._initInput=null!=(t=e.initInput)?t:null,this._formatOptions=null!=(i=e.formatOptions)?i:{},e.source instanceof ps?this._rootRef=e.source.ref():this._rootRef=e.source,this._sourceRefs.push(this._rootRef)}get _rootSource(){return this._rootRef.source}_getSourceUncached(e){return p(this,null,function*(){S(this._rootSource instanceof ks);const t=yield this._rootSource._resolveRequest(e);return this._emit("source",{source:t.source,request:e,isRoot:e.isRoot}),t})}_getSourceCached(e,t=1){const i=this._sourceCache.find(i=>i.cacheGroup===t&&ys(i.request,e));if(i)return i.age++,Promise.resolve(i.sourceRef.source.ref());const r=this._sourceCachePromises.find(i=>i.cacheGroup===t&&ys(i.request,e));if(r)return r.promise.then(e=>e.sourceRef.source.ref());const n=(()=>p(this,null,function*(){const i=yield this._getSourceUncached(e);if(Re(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount)>=4){const e=Fe(this._sourceCache,e=>e.cacheGroup===t&&1===e.sourceRef.source._refCount?e.age:1/0);S(-1!==e);const i=this._sourceCache[e];this._sourceCache.splice(e,1),i.sourceRef.free(),G(this._sourceRefs,i.sourceRef)}this._sourceRefs.push(i);const r=this._sourceCachePromises.findIndex(t=>t.request===e);S(-1!==r),this._sourceCachePromises.splice(r,1);return{request:e,sourceRef:i,age:this._nextSourceCacheAge++,cacheGroup:t}}))();return this._sourceCachePromises.push({request:e,cacheGroup:t,promise:n}),n.then(e=>{const t=e.sourceRef.source.ref();return this._sourceCache.push(e),t})}_getDemuxer(){var e;return null!=(e=this._demuxerPromise)?e:this._demuxerPromise=(()=>p(this,null,function*(){var e;this._reader=new Fo(this._rootSource),this._emit("source",{source:this._rootSource,request:null,isRoot:!0});for(const t of this._formats){if(yield t._canReadInput(this))return this._format=t,null==(e=this._onFormatDetermined)||e.call(this,t),t._createDemuxer(this)}throw new _o}))()}get source(){return this._rootSource}getFormat(){return p(this,null,function*(){return yield this._getDemuxer(),S(this._format),this._format})}canRead(){return p(this,null,function*(){try{return yield this._getDemuxer(),!0}catch(e){if(e instanceof _o)return!1;throw e}})}getFirstTimestamp(e){return p(this,null,function*(){null!=e||(e=yield this.getTracks());const t=e.filter(e=>null!==e);if(0===t.length)return 0;const i=yield Promise.all(t.map(e=>e._backing.getFirstPacket({metadataOnly:!0}))),r=Math.min(...i.map(e=>{var t;return null!=(t=null==e?void 0:e.timestamp)?t:1/0}));return r===1/0?0:r})}computeDuration(e,t){return p(this,null,function*(){null!=e||(e=yield this.getTracks());const i=e.filter(e=>null!==e);if(0===i.length)return 0;const r=yield Promise.all(i.map(e=>e.computeDuration(t)));return Math.max(...r)})}getDurationFromMetadata(e,t){return p(this,null,function*(){null!=e||(e=yield this.getTracks());const i=e.filter(e=>null!==e),r=(yield Promise.all(i.map(e=>e.getDurationFromMetadata(t)))).filter(e=>null!==e);return 0===r.length?null:Math.max(...r)})}getTracks(e){return p(this,null,function*(){e&&(e=So(e));const t=(yield this._getTrackBackings()).map(e=>this._wrapBackingAsTrack(e));return Po(t,e)})}getVideoTracks(e){return p(this,null,function*(){e&&(e=So(e));const t=(yield this.getTracks()).filter(e=>e.isVideoTrack());return Po(t,e)})}getAudioTracks(e){return p(this,null,function*(){e&&(e=So(e));const t=(yield this.getTracks()).filter(e=>e.isAudioTrack());return Po(t,e)})}getPrimaryVideoTrack(e){return p(this,null,function*(){var t;e&&(e=So(e));const i=wo(e,{sortBy:e=>p(null,null,function*(){return[vo((yield e.getDisposition()).default),vo(yield e.hasPairableAudioTrack()),vo(!(yield e.hasOnlyKeyPackets())),To(yield e.getBitrate())]})});return null!=(t=(yield this.getVideoTracks(i))[0])?t:null})}getPrimaryAudioTrack(e){return p(this,null,function*(){var t;e&&(e=So(e));const i=yield this.getPrimaryVideoTrack(),r=wo(e,{sortBy:e=>p(this,null,function*(){return[vo(!i||e.canBePairedWith(i)),vo((yield e.getDisposition()).default),To(yield e.getBitrate())]})});return null!=(t=(yield this.getAudioTracks(r))[0])?t:null})}_getTrackBackings(){return p(this,null,function*(){var e;const t=yield this._getDemuxer();return null!=(e=this._trackBackingsCache)?e:this._trackBackingsCache=yield t.getTrackBackings()})}_wrapBackingAsTrack(e){const t=this._backingToTrack.get(e);if(t)return t;const i="video"===e.getType()?new yo(this,e):new bo(this,e);return this._backingToTrack.set(e,i),i}getMimeType(){return p(this,null,function*(){return(yield this._getDemuxer()).getMimeType()})}getMetadataTags(){return p(this,null,function*(){return(yield this._getDemuxer()).getMetadataTags()})}dispose(){if(!this._disposed){this._disposed=!0;for(const e of this._sourceRefs)e.free();this._sourceRefs.length=0,this._demuxerPromise&&this._demuxerPromise.then(e=>e.dispose()).catch(()=>{})}}[Symbol.dispose](){this.dispose()}}class _o extends Error{constructor(e="Input has an unsupported or unrecognizable format."){super(e),this.name="UnsupportedInputFormatError"}}class Ro extends Error{constructor(e="Input has been disposed."){super(e),this.name="InputDisposedError"}}class Fo{constructor(e){this.source=e}get fileSize(){const e=this.source._getFileSize();if(void 0===e)throw new Error("Reading file size too early; read required first.");return e}get fileSizeNonStrict(){var e;return null!=(e=this.source._getFileSize())?e:null}requestSlice(e,t){if(this.source._disposed)throw new Ro;if(e<0)return null;if(null!==this.fileSizeNonStrict&&e+t>this.fileSizeNonStrict)return null;if(0===t){const t=new Uint8Array(0);return new Ao(t,E(t),0,e,e)}const i=e+t,r=this.source._read(e,i,0,ms);return Pe(r)?r.then(t=>t?new Ao(t.bytes,t.view,t.offset,e,i):null):r?new Ao(r.bytes,r.view,r.offset,e,i):null}requestSliceRange(e,t,i){if(this.source._disposed)throw new Ro;if(e<0)return null;if(null!==this.fileSizeNonStrict)return this.requestSlice(e,ie(this.fileSizeNonStrict-e,t,i));{const r=this.requestSlice(e,i),n=r=>r||(S(null!==this.fileSizeNonStrict),this.requestSlice(e,ie(this.fileSizeNonStrict-e,t,i)));return Pe(r)?r.then(n):n(r)}}requestEntireFile(){if(null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);return(()=>p(this,null,function*(){const e=[];let t=0;for(;;){if(1===e.length&&null!==this.fileSizeNonStrict)return this.requestSlice(0,this.fileSizeNonStrict);let i=this.requestSliceRange(t,0,1024);if(Pe(i)&&(i=yield i),!i||0===i.length)break;const r=Mo(i,i.length);e.push(r),t+=i.length}const i=new Uint8Array(t);let r=0;for(const n of e)i.set(n,r),r+=n.length;return new Ao(i,E(i),0,0,t)}))()}}class Ao{constructor(e,t,i,r,n){this.bytes=e,this.view=t,this.offset=i,this.start=r,this.end=n,this.bufferPos=r-i}static tempFromBytes(e){return new Ao(e,E(e),0,0,e.length)}get length(){return this.end-this.start}get filePos(){return this.offset+this.bufferPos}set filePos(e){this.bufferPos=e-this.offset}get remainingLength(){return Math.max(this.end-this.filePos,0)}skip(e){this.bufferPos+=e}slice(e,t=this.end-e){if(ethis.end)throw new RangeError("Slicing outside of original slice.");return new Ao(this.bytes,this.view,this.offset,e,e+t)}}const Do=(e,t)=>{if(e.filePose.end)throw new RangeError(`Tried reading [${e.filePos}, ${e.filePos+t}), but slice is [${e.start}, ${e.end}). This is likely an internal error, please report it alongside the file that caused it.`)},Mo=(e,t)=>{Do(e,t);const i=e.bytes.subarray(e.bufferPos,e.bufferPos+t);return e.bufferPos+=t,i},No=e=>(Do(e,1),e.view.getUint8(e.bufferPos++)),Oo=(e,t)=>{Do(e,2);const i=e.view.getUint16(e.bufferPos,t);return e.bufferPos+=2,i},Lo=e=>{Do(e,2);const t=e.view.getUint16(e.bufferPos,!1);return e.bufferPos+=2,t},zo=e=>{Do(e,3);const t=Z(e.view,e.bufferPos,!1);return e.bufferPos+=3,t},Uo=e=>{Do(e,2);const t=e.view.getInt16(e.bufferPos,!1);return e.bufferPos+=2,t},qo=(e,t)=>{Do(e,4);const i=e.view.getUint32(e.bufferPos,t);return e.bufferPos+=4,i},Wo=e=>{Do(e,4);const t=e.view.getUint32(e.bufferPos,!1);return e.bufferPos+=4,t},Ho=e=>{Do(e,4);const t=e.view.getUint32(e.bufferPos,!0);return e.bufferPos+=4,t},Vo=e=>{Do(e,4);const t=e.view.getInt32(e.bufferPos,!1);return e.bufferPos+=4,t},jo=(e,t)=>{let i,r;return t?(i=qo(e,!0),r=qo(e,!0)):(r=qo(e,!1),i=qo(e,!1)),4294967296*r+i},Ko=e=>4294967296*Wo(e)+Wo(e),Xo=e=>4294967296*Vo(e)+Wo(e),$o=e=>{const t=Ho(e),i=(e=>{Do(e,4);const t=e.view.getInt32(e.bufferPos,!0);return e.bufferPos+=4,t})(e);return 4294967296*i+t},Go=e=>{Do(e,4);const t=e.view.getFloat32(e.bufferPos,!1);return e.bufferPos+=4,t},Qo=e=>{Do(e,8);const t=e.view.getFloat64(e.bufferPos,!1);return e.bufferPos+=8,t},Yo=(e,t)=>{Do(e,t);let i="";for(let r=0;r_.decode(Mo(e,t)).split("\n").map(e=>e.trim()).filter(e=>{var t;return e.length>0&&!(null==(t=null==i?void 0:i.ignore)?void 0:t.call(i,e))});var Zo,el,tl,il;(el=Zo||(Zo={}))[el.Unsynchronisation=128]="Unsynchronisation",el[el.ExtendedHeader=64]="ExtendedHeader",el[el.ExperimentalIndicator=32]="ExperimentalIndicator",el[el.Footer=16]="Footer",(il=tl||(tl={}))[il.ISO_8859_1=0]="ISO_8859_1",il[il.UTF_16_WITH_BOM=1]="UTF_16_WITH_BOM",il[il.UTF_16_BE_NO_BOM=2]="UTF_16_BE_NO_BOM",il[il.UTF_8=3]="UTF_8";const rl=128,nl=10,sl=["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"],al=(e,t)=>{var i;const r=e.filePos;null!=t.raw||(t.raw={}),null!=(i=t.raw).TAG||(i.TAG=Mo(e,rl-3)),e.filePos=r;const n=ol(e,30);n&&(null!=t.title||(t.title=n));const s=ol(e,30);s&&(null!=t.artist||(t.artist=s));const a=ol(e,30);a&&(null!=t.album||(t.album=a));const o=ol(e,4),l=Number.parseInt(o,10);Number.isInteger(l)&&l>0&&(null!=t.date||(t.date=new Date(String(l))));const c=Mo(e,30);let u;if(0===c[28]&&0!==c[29]){const i=c[29];i>0&&(null!=t.trackNumber||(t.trackNumber=i)),e.skip(-30),u=ol(e,28),e.skip(2)}else e.skip(-30),u=ol(e,30);u&&(null!=t.comment||(t.comment=u));const d=No(e);d{const i=Mo(e,t),r=Ie(i.indexOf(0),i.length),n=i.subarray(0,r);let s="";for(let a=0;a{const t=e.filePos,i=Yo(e,3),r=No(e),n=No(e),s=No(e),a=Wo(e);if("ID3"!==i||255===r||255===n||0!==(2155905152&a))return e.filePos=t,null;let o=Ei(a);return s&Zo.Footer&&(o+=nl),{majorVersion:r,revision:n,flags:s,size:o}},cl=(e,t,i)=>{var r,n,s,a,o,l;if(![2,3,4].includes(t.majorVersion))return void ze._warn(`Unsupported ID3v2 major version: ${t.majorVersion}`);const c=t.flags&Zo.Footer?t.size-nl:t.size,u=Mo(e,c),d=new ul(t,u);if(t.flags&Zo.Unsynchronisation&&3===t.majorVersion&&d.ununsynchronizeAll(),t.flags&Zo.ExtendedHeader){const e=d.readU32();3===t.majorVersion?d.pos+=e:d.pos+=e-4}for(;d.pos<=d.bytes.length-d.frameHeaderSize();){const e=d.readId3V2Frame();if(!e)break;const c=d.pos,u=d.pos+e.size;let h=!1,f=!1,m=!1;if(3===t.majorVersion?(h=!!(64&e.flags),f=!!(128&e.flags)):4===t.majorVersion&&(h=!!(4&e.flags),f=!!(8&e.flags),m=!!(2&e.flags)||!!(t.flags&Zo.Unsynchronisation)),h)ze._warn(`Skipping encrypted ID3v2 frame ${e.id}`),d.pos=u;else if(f)ze._warn(`Skipping compressed ID3v2 frame ${e.id}`),d.pos=u;else{if(m&&d.ununsynchronizeRegion(d.pos,u),null!=i.raw||(i.raw={}),"TXXX"===e.id){const e=null!=(n=(r=i.raw).TXXX)?n:r.TXXX={},t=d.readId3V2TextEncoding(),s=d.readId3V2Text(t,u),a=d.readId3V2Text(t,u);null!=e[s]||(e[s]=a)}else"T"===e.id[0]?null!=(s=i.raw)[a=e.id]||(s[a]=d.readId3V2EncodingAndText(u)):null!=(o=i.raw)[l=e.id]||(o[l]=d.readBytes(e.size));switch(d.pos=c,e.id){case"TIT2":case"TT2":null!=i.title||(i.title=d.readId3V2EncodingAndText(u));break;case"TIT3":case"TT3":null!=i.description||(i.description=d.readId3V2EncodingAndText(u));break;case"TPE1":case"TP1":null!=i.artist||(i.artist=d.readId3V2EncodingAndText(u));break;case"TALB":case"TAL":null!=i.album||(i.album=d.readId3V2EncodingAndText(u));break;case"TPE2":case"TP2":null!=i.albumArtist||(i.albumArtist=d.readId3V2EncodingAndText(u));break;case"TRCK":case"TRK":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.trackNumber||(i.trackNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.tracksTotal||(i.tracksTotal=r))}break;case"TPOS":case"TPA":{const e=d.readId3V2EncodingAndText(u).split("/"),t=Number.parseInt(e[0],10),r=e[1]&&Number.parseInt(e[1],10);Number.isInteger(t)&&t>0&&(null!=i.discNumber||(i.discNumber=t)),r&&Number.isInteger(r)&&r>0&&(null!=i.discsTotal||(i.discsTotal=r))}break;case"TCON":case"TCO":{const e=d.readId3V2EncodingAndText(u);let t=/^\((\d+)\)/.exec(e);if(t){const e=Number.parseInt(t[1]);if(void 0!==sl[e]){null!=i.genre||(i.genre=sl[e]);break}}if(t=/^\d+$/.exec(e),t){const e=Number.parseInt(t[0]);if(void 0!==sl[e]){null!=i.genre||(i.genre=sl[e]);break}}null!=i.genre||(i.genre=e)}break;case"TDRC":case"TDAT":{const e=d.readId3V2EncodingAndText(u),t=new Date(e);Number.isNaN(t.getTime())||null!=i.date||(i.date=t)}break;case"TYER":case"TYE":{const e=d.readId3V2EncodingAndText(u),t=Number.parseInt(e,10);Number.isInteger(t)&&(null!=i.date||(i.date=new Date(String(t))))}break;case"USLT":case"ULT":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.lyrics||(i.lyrics=d.readId3V2Text(e,u))}break;case"COMM":case"COM":{const e=d.readU8();d.pos+=3,d.readId3V2Text(e,u),null!=i.comment||(i.comment=d.readId3V2Text(e,u))}break;case"APIC":case"PIC":{const e=d.readId3V2TextEncoding();let r;if(2===t.majorVersion){const e=d.readAscii(3);r="PNG"===e?"image/png":"JPG"===e?"image/jpeg":"image/*"}else r=d.readId3V2Text(e,u);const n=d.readU8(),s=d.readId3V2Text(e,u).trimEnd(),a=u-d.pos;if(a>=0){const e=d.readBytes(a);i.images||(i.images=[]),i.images.push({data:e,mimeType:r,kind:3===n?"coverFront":4===n?"coverBack":"unknown",description:s})}}break;default:d.pos+=e.size}d.pos=u}}};class ul{constructor(e,t){this.header=e,this.bytes=t,this.pos=0,this.view=new DataView(t.buffer,t.byteOffset,t.byteLength)}frameHeaderSize(){return 2===this.header.majorVersion?6:10}ununsynchronizeAll(){const e=[];for(let t=0;t{const t=this.pos+e;if(t>this.bytes.length)return!1;if(t<=this.bytes.length-this.frameHeaderSize()){this.pos+=e;const t=this.readAscii(4);if("\0\0\0\0"!==t&&!/[0-9A-Z]{4}/.test(t))return!1}return!0};if(!s(i)){const e=4===this.header.majorVersion?t:Ei(t);s(e)&&(i=e)}return this.pos=n,{id:e,size:i,flags:r}}}readId3V2TextEncoding(){const e=this.readU8();if(e>3)throw new Error(`Unsupported text encoding: ${e}`);return e}readId3V2Text(e,t){const i=this.pos,r=this.readBytes(t-this.pos);switch(e){case tl.ISO_8859_1:{let e="";for(let t=0;t0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}if(254===r[0]&&255===r[1]){const e=new TextDecoder("utf-16be"),t=Ie(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(2,t))}{const e=Ie(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),_.decode(r.subarray(0,e))}case tl.UTF_16_BE_NO_BOM:{const e=new TextDecoder("utf-16be"),t=Ie(r.findIndex((e,t)=>0===e&&0===r[t+1]&&t%2===0),r.length);return this.pos=i+Math.min(t+2,r.length),e.decode(r.subarray(0,t))}case tl.UTF_8:{const e=Ie(r.findIndex(e=>0===e),r.length);return this.pos=i+Math.min(e+1,r.length),_.decode(r.subarray(0,e))}}}readId3V2EncodingAndText(e){if(this.pos>=e)return"";const t=this.readId3V2TextEncoding();return this.readId3V2Text(t,e)}}class dl{constructor(e){this.events=e,this.input=null,this.audioSink=null,this.audioIterator=null,this.audioContext=null,this.gainNode=null,this.audioContextStartTime=0,this.playbackTimeAtStart=0,this.latestScheduledEndTime=0,this.duration=Number.NaN,this.paused=!0,this.volume=.7,this.muted=!1,this.playbackRate=1,this.asyncId=0,this.queuedNodes=new Set}get currentTime(){return this.paused?this.playbackTimeAtStart:(this.audioContext.currentTime-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart}ensureAudioContext(e){if(this.audioContext)return;const t=window.AudioContext||window.webkitAudioContext;try{this.audioContext=new t({sampleRate:e})}catch(i){this.audioContext=new t}this.gainNode=this.audioContext.createGain(),this.gainNode.connect(this.audioContext.destination),this.updateGain()}updateGain(){if(!this.gainNode)return;const e=this.muted?0:this.volume;this.gainNode.gain.value=e*e}stopQueuedNodes(){this.queuedNodes.forEach(e=>e.stop()),this.queuedNodes.clear()}stopIterator(){return p(this,null,function*(){var e;yield null==(e=this.audioIterator)?void 0:e.return(),this.audioIterator=null})}handleNoAudioTrack(){this.audioSink=null,this.ensureAudioContext()}load(e,t){return p(this,null,function*(){++this.asyncId,yield this.stopIterator(),this.stopQueuedNodes(),this.paused=!0,this.playbackTimeAtStart=0,this.audioContextStartTime=0;const{input:i,audioTrack:r,duration:n}=e;return this.input=i,this.duration=n,r?null!==r.codec&&(yield r.canDecode())?(this.ensureAudioContext(r.sampleRate),this.audioSink=new mo(r),void(null==t||t())):(this.audioSink=null,this.ensureAudioContext(),void(null==t||t())):(this.handleNoAudioTrack(),void(null==t||t()))})}runIterator(e){return p(this,null,function*(){if(!this.audioSink)return;yield this.stopIterator(),this.audioIterator=this.audioSink.buffers(this.currentTime);for(;;){if(e!==this.asyncId||this.paused)return;const i=[];let r=!1;try{for(let e=0;e<16;e++){const e=yield this.audioIterator.next();if(e.done){r=!0;break}i.push(e.value)}}catch(t){console.error("Audio iterator error:",t),r=!0}if(e!==this.asyncId||this.paused)return;i.length>0&&"suspended"===this.audioContext.state&&(yield this.audioContext.resume(),this.events.emit("canplay"),this.events.emit("playing"));for(const{buffer:e,timestamp:t}of i){const i=this.audioContext.createBufferSource();i.buffer=e,i.connect(this.gainNode),i.playbackRate.value=this.playbackRate;const r=this.audioContextStartTime+(t-this.playbackTimeAtStart)/this.playbackRate,n=(r+e.duration/this.playbackRate-this.audioContextStartTime)*this.playbackRate+this.playbackTimeAtStart;n>this.latestScheduledEndTime&&(this.latestScheduledEndTime=n),r>=this.audioContext.currentTime?i.start(r):i.start(this.audioContext.currentTime,(this.audioContext.currentTime-r)*this.playbackRate),this.queuedNodes.add(i),i.onended=()=>this.queuedNodes.delete(i)}if(r)break;yield new Promise(e=>setTimeout(e,0));const n=1;for(;this.latestScheduledEndTime-this.currentTime>n;){if(e!==this.asyncId||this.paused)return;yield new Promise(e=>setTimeout(e,50))}}})}play(){return p(this,null,function*(){if(!this.paused)return;this.audioContext||this.ensureAudioContext(),"suspended"===this.audioContext.state&&(yield this.audioContext.resume()),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart,this.paused=!1;const e=++this.asyncId;this.runIterator(e)})}pause(){this.paused||(this.playbackTimeAtStart=this.currentTime,this.paused=!0,this.stopIterator(),this.stopQueuedNodes())}seek(e){return p(this,null,function*(){this.playbackTimeAtStart=Math.max(0,e),this.audioContextStartTime=this.audioContext.currentTime,this.latestScheduledEndTime=this.playbackTimeAtStart;const t=++this.asyncId;this.paused||this.runIterator(t)})}setVolume(e,t){this.volume=e,this.muted=t,this.updateGain()}setPlaybackRate(e){if(e!==this.playbackRate&&(this.paused||(this.playbackTimeAtStart=this.currentTime,this.audioContextStartTime=this.audioContext.currentTime),this.playbackRate=e,!this.paused)){const e=++this.asyncId;this.runIterator(e)}}destroy(){var e;this.asyncId++,this.pause(),null==(e=this.audioContext)||e.close(),this.audioContext=null,this.input=null,this.audioSink=null}}function hl(e){return p(this,null,function*(){var t,i;return null!=(i=null!=(t=yield e.getAverageBitrate())?t:yield e.getBitrate())?i:0})}const fl=/\.m3u8(?:$|[?#])/i;function ml(e){return"string"===typeof e&&fl.test(e)}function pl(e){const t=function(e){return"string"===typeof e?new Is(e):e instanceof Blob?new vs(e):"undefined"!==typeof ReadableStream&&e instanceof ReadableStream?new Bs(e):null!=e?e:null}(e);return t?new Eo({source:t,formats:ml(e)?pa:ma}):null}class gl{constructor(){this.active=!0,this.input=null,this.timers=new Set,this.controller="undefined"===typeof AbortController?void 0:new AbortController,this.cancellation=new Promise(e=>{this.resolveCancellation=e})}get signal(){var e;return null==(e=this.controller)?void 0:e.signal}own(e){this.active?this.input=e:e.dispose()}defer(e){if(!this.active)return;const t=setTimeout(()=>{this.timers.delete(t),this.active&&e()},0);this.timers.add(t)}wait(e,t){return p(this,null,function*(){try{yield Promise.race([e,this.cancellation,t>0?this.timeout(t):new Promise(()=>{})])}finally{void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0)}})}timeout(e){return new Promise((t,i)=>{this.deadline=setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){const e=this.input;this.input=null,null==e||e.dispose()}cancel(){var e;if(this.active){this.active=!1;for(const e of this.timers)clearTimeout(e);this.timers.clear(),void 0!==this.deadline&&(clearTimeout(this.deadline),this.deadline=void 0),this.resolveCancellation(),null==(e=this.controller)||e.abort(),this.disposeInput()}}}function kl(e){return p(this,arguments,function*({input:e,videoTrack:t,audioTrack:i}){const r=[t,i].filter(e=>null!==e),n=t||i,s=Boolean(n&&(yield n.isLive()));let a=Number.NaN;return r.length>0&&(a=yield e.getDurationFromMetadata(r,{skipLiveWait:!0}),null!==a||s||(a=yield e.computeDuration(r,{skipLiveWait:!0}))),s?Number.POSITIVE_INFINITY:null!=a?a:Number.NaN})}class yl{constructor({canvas:e,ctx:t,events:i,timeupdateInterval:r=250,avSyncTolerance:n=.12,dropLateFrames:s=!1,poster:a="",preflightRange:o=!1}){this.canvas=e,this.ctx=t,this.events=i,this.timeupdateInterval=r,this.avSyncTolerance=n,this.dropLateFrames=s,this.poster=a,this.preflightRange=o,this.input=null,this.videoSink=null,this.videoIterator=null,this.nextFrame=null,this.rafId=0,this.asyncId=0,this.width=0,this.height=0,this.duration=Number.NaN,this.audioClock=null,this.lastTimeUpdate=0,this.stalled=!1,this.playbackRate=1,this.posterDrawn=!1,this.isFetching=!1}preflight(e,t,i){return p(this,null,function*(){return function(e,t,i,r,n=()=>!0){return p(this,null,function*(){if((null==r?void 0:r.aborted)||!n())return!1;if(!t||"string"!==typeof e||ml(e))return!0;try{const t=yield fetch(e,r?{method:"HEAD",signal:r}:{method:"HEAD"});if((null==r?void 0:r.aborted)||!n())return!1;const s=t.headers.get("accept-ranges");return!(!s||"none"===s)||(i.emit("error",new Event("RangeNotSupported")),!1)}catch(s){return!((null==r?void 0:r.aborted)||!n())&&(console.warn("Preflight check failed:",s),!0)}})}(e,this.preflightRange,this.events,t,i)})}drawPoster(){if(!this.poster||this.posterDrawn)return;const e=new Image;e.onload=()=>{this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.canvas.width=e.naturalWidth||this.canvas.width,this.canvas.height=e.naturalHeight||this.canvas.height,this.ctx.drawImage(e,0,0,this.canvas.width,this.canvas.height),this.posterDrawn=!0},e.src=this.poster}stopIterator(){return p(this,null,function*(){var e;yield null==(e=this.videoIterator)?void 0:e.return(),this.videoIterator=null})}clear(){this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height)}load(e,t){return p(this,null,function*(){++this.asyncId,yield this.stopIterator(),this.clear(),this.posterDrawn=!1;const{input:i,videoTrack:r,duration:n}=e;if(this.input=i,this.duration=n,!r)return this.handleNoVideoTrack(),void(null==t||t());if(null===r.codec||!(yield r.canDecode()))return this.handleNoVideoTrack(),void(null==t||t());const s=yield r.canBeTransparent();this.videoSink=new co(r,{poolSize:2,fit:"contain",alpha:s}),this.width=r.displayWidth,this.height=r.displayHeight,this.canvas.width=this.width,this.canvas.height=this.height,null==t||t(),yield this.resetIterator(0)})}handleNoVideoTrack(){this.videoSink=null,this.width=0,this.height=0,this.canvas.width=0,this.canvas.height=0,this.clear(),this.drawPoster()}resetIterator(e){return p(this,null,function*(){var t,i;if(yield this.stopIterator(),!this.videoSink)return;this.videoIterator=this.videoSink.canvases(e);const r=null!=(t=(yield this.videoIterator.next()).value)?t:null,n=null!=(i=(yield this.videoIterator.next()).value)?i:null;this.nextFrame=n,r?this.ctx.drawImage(r.canvas,0,0):this.drawPoster()})}updateNextFrame(e){return p(this,null,function*(){var t;if(this.videoIterator&&!this.isFetching){this.isFetching=!0;try{for(;;){const i=null!=(t=(yield this.videoIterator.next()).value)?t:null;if(!i||e!==this.asyncId)return;const r=this.audioClock.currentTime,n=this.dropLateFrames?Math.max(.06,this.avSyncTolerance/Math.max(1,this.playbackRate)):0;if(!(this.dropLateFrames&&i.timestampr)return void(this.nextFrame=null)}}}finally{this.isFetching=!1}}})}render(){if(!this.audioClock)return;const e=this.audioClock.currentTime,t=Date.now();if(t-this.lastTimeUpdate>=this.timeupdateInterval&&(this.events.emit("timeupdate"),this.lastTimeUpdate=t),Number.isFinite(this.duration)&&e>=this.duration)return this.stop(),this.stalled=!1,this.events.emit("ended"),this.events.emit("pause"),void this.events.emit("canplay");this.nextFrame&&this.nextFrame.timestamp<=e?(this.ctx.clearRect(0,0,this.canvas.width,this.canvas.height),this.ctx.drawImage(this.nextFrame.canvas,0,0),this.nextFrame=null,this.updateNextFrame(this.asyncId),this.stalled&&(this.events.emit("canplay"),this.events.emit("playing"),this.stalled=!1)):this.nextFrame||(this.updateNextFrame(this.asyncId),!this.nextFrame&&Number.isFinite(this.duration)&&ethis.render())}start(e){this.audioClock=e,this.asyncId++,this.stalled=!1,this.updateNextFrame(this.asyncId),this.rafId=requestAnimationFrame(()=>this.render())}stop(){cancelAnimationFrame(this.rafId)}seek(e){return p(this,null,function*(){this.asyncId++,yield this.resetIterator(e)})}setPlaybackRate(e){this.playbackRate=Math.max(.1,Number(e)||1)}destroy(){this.asyncId++,this.stop(),this.stopIterator(),this.posterDrawn=!1,this.videoSink=null,this.input=null}}class bl{constructor({canvas:e,ctx:t,events:i,option:r={}}){var n,s,a,o,l,c;this.events=i,this.option=r,this.audio=new dl(i),this.video=new yl({canvas:e,ctx:t,events:i,timeupdateInterval:null!=(n=r.timeupdateInterval)?n:250,avSyncTolerance:null!=(s=r.avSyncTolerance)?s:.12,dropLateFrames:null!=(a=r.dropLateFrames)&&a,poster:null!=(o=r.poster)?o:"",preflightRange:null!=(l=r.preflightRange)&&l}),this.paused=!0,this.ended=!1,this.readyState=0,this.networkState=0,this.error=null,this.seeking=!1,this.loadSeq=0,this.input=null,this.media=null,this.loadSession=null,this.destroyed=!1,null==(c=i.addEventListener)||c.call(i,"ended",()=>{this.ended=!0,this.paused=!0})}load(e){return p(this,null,function*(){var t;if(this.destroyed)return;const i=++this.loadSeq;if(null==(t=this.loadSession)||t.cancel(),i!==this.loadSeq||this.destroyed)return;if(this.pause(),i!==this.loadSeq||this.destroyed)return;this.disposeInput();const r=new gl;this.loadSession=r,this.ended=!1,this.error=null,this.networkState=2,this.readyState=0,r.defer(()=>this.events.emit("waiting")),r.defer(()=>this.events.emit("loadstart"));const n=Number.isFinite(this.option.loadTimeout)?this.option.loadTimeout:0;try{yield r.wait(this.performLoad(e,i,r),n)}catch(s){if(i!==this.loadSeq)return;const e=++this.loadSeq;if(r.cancel(),e!==this.loadSeq||this.destroyed)return;this.disposeInput(),this.error={code:4,message:s.message},this.networkState=3,this.events.emit("error")}})}performLoad(e,t){return p(this,arguments,function*(e,t,i=this.loadSession){if(!(yield this.video.preflight(e,null==i?void 0:i.signal,()=>t===this.loadSeq))||t!==this.loadSeq)return;const r=pl(e);if(!r)return this.video.handleNoVideoTrack(),void this.audio.handleNoAudioTrack();i.own(r);const n=yield function(e,t){return p(this,null,function*(){const i=yield e.getPrimaryVideoTrack(),r=i?yield i.getPrimaryPairableAudioTrack():yield e.getPrimaryAudioTrack(),n=yield kl({input:e,videoTrack:i,audioTrack:r}),s=i||r,a=ml(t);return{input:e,videoTrack:i,audioTrack:r,duration:n,isLive:!Number.isFinite(n)&&Boolean(s&&(yield s.isLive())),isHls:a,videoMode:a?"auto":"manual",audioMode:a?"auto":"manual"}})}(r,e);if(t!==this.loadSeq)return;this.input=r,this.media=n;let s=!n.videoTrack,a=!n.audioTrack;const o=()=>{s&&a&&(this.readyState=1,this.events.emit("loadedmetadata"),this.events.emit("durationchange"),this.events.emit("progress"))};try{if(yield Promise.all([this.video.load(n,()=>{t===this.loadSeq&&(s=!0,o())}),this.audio.load(n,()=>{t===this.loadSeq&&(a=!0,o())})]),t!==this.loadSeq)return;this.readyState=4,this.networkState=1,this.events.emit("loadeddata"),this.events.emit("canplay"),this.events.emit("canplaythrough"),this.events.emit("progress")}catch(l){if(t!==this.loadSeq)return;throw console.error("MediaBunny load error:",l),l}})}createTimeout(e){return new Promise((t,i)=>{setTimeout(()=>i(new Error("Load timeout")),e)})}disposeInput(){var e;null==(e=this.loadSession)||e.disposeInput(),this.input=null,this.media=null}replaceTracks(e){return p(this,arguments,function*({videoTrack:e,audioTrack:t,videoMode:i,audioMode:r}){if(!this.media)return;const n=h(d({},this.media),{videoTrack:e,audioTrack:t,videoMode:i,audioMode:r}),s=!this.paused,a=this.currentTime;this.pause(),this.ended=!1,this.seeking=!0,this.events.emit("seeking"),this.events.emit("waiting"),n.duration=yield kl(n),this.media=n,yield Promise.all([this.video.load(n),this.audio.load(n)]),yield Promise.all([this.video.seek(a),this.audio.seek(a)]),this.readyState=4,this.networkState=1,this.seeking=!1,this.events.emit("loadedmetadata"),this.events.emit("durationchange"),this.events.emit("progress"),this.events.emit("loadeddata"),this.events.emit("canplay"),this.events.emit("canplaythrough"),this.events.emit("seeked"),s&&(yield this.play())})}selectHlsQuality(e){return p(this,null,function*(){var t,i;if(!(null==(t=this.media)?void 0:t.isHls)||!this.input)return;const r=yield this.input.getVideoTracks(),n="auto"===e?yield this.input.getPrimaryVideoTrack():null!=(i=r.find(t=>t.id===e))?i:this.media.videoTrack;if(!n)return;let s=this.media.audioTrack,a=this.media.audioMode;s&&n.canBePairedWith(s)||(s=yield n.getPrimaryPairableAudioTrack(),a="auto"),yield this.replaceTracks({videoTrack:n,audioTrack:s,videoMode:"auto"===e?"auto":"manual",audioMode:a})})}selectHlsAudio(e){return p(this,null,function*(){var t,i;if(!(null==(t=this.media)?void 0:t.isHls)||!this.input)return;const r=yield this.input.getAudioTracks(),n="auto"===e?this.media.videoTrack?yield this.media.videoTrack.getPrimaryPairableAudioTrack():yield this.input.getPrimaryAudioTrack():null!=(i=r.find(t=>t.id===e))?i:this.media.audioTrack;if(!n)return;let s=this.media.videoTrack,a=this.media.videoMode;s&&n.canBePairedWith(s)||(s=yield n.getPrimaryPairableVideoTrack(),a="auto"),yield this.replaceTracks({videoTrack:s,audioTrack:n,videoMode:a,audioMode:"auto"===e?"auto":"manual"})})}getHlsState(){return function(e){return p(this,null,function*(){var t,i,r,n;if(!(null==e?void 0:e.isHls)||!e.input)return null;const[s,a]=yield Promise.all([e.input.getVideoTracks(),e.videoTrack?e.videoTrack.getPairableAudioTracks():[]]),[o,l]=yield Promise.all([Promise.all(s.map((e,t)=>p(null,null,function*(){return{id:e.id,track:e,index:t,name:yield e.getName(),height:yield e.getDisplayHeight(),bitrate:yield hl(e)}}))),Promise.all(a.map((e,t)=>p(null,null,function*(){const i=yield e.getName(),r=yield e.getLanguageCode();return{id:e.id,track:e,index:t,name:i,lang:r,language:r,bitrate:yield hl(e)}})))]);return{levels:o,audios:l,currentLevel:e.videoTrack&&null!=(t=o.find(t=>{var i;return t.id===(null==(i=e.videoTrack)?void 0:i.id)}))?t:null,currentAudio:e.audioTrack&&null!=(i=l.find(t=>{var i;return t.id===(null==(i=e.audioTrack)?void 0:i.id)}))?i:null,videoMode:null!=(r=e.videoMode)?r:"auto",audioMode:null!=(n=e.audioMode)?n:"auto"}})}(this.media)}play(){return p(this,null,function*(){this.paused&&(this.ended&&(this.ended=!1,yield this.seek(0)),this.paused=!1,yield this.audio.play(),this.video.start(this.audio),this.events.emit("play"),this.events.emit("playing"))})}pause(){this.paused||(this.paused=!0,this.audio.pause(),this.video.stop(),this.events.emit("pause"))}seek(e){return p(this,null,function*(){const t=!this.paused;this.ended=!1,this.seeking=!0,this.events.emit("seeking"),this.events.emit("waiting"),this.pause(),yield Promise.all([this.audio.seek(e),this.video.seek(e)]),this.seeking=!1,this.events.emit("seeked"),t&&!this.ended&&(yield this.play())})}setVolume(e,t){this.audio.setVolume(e,t)}setPlaybackRate(e){this.audio.setPlaybackRate(e),this.video.setPlaybackRate(e)}destroy(){var e;this.destroyed||(this.destroyed=!0,this.loadSeq++,null==(e=this.loadSession)||e.cancel(),this.pause(),this.disposeInput(),this.audio.destroy(),this.video.destroy())}get currentTime(){return this.audio.currentTime}get duration(){var e,t,i;return null!=(i=null!=(t=null==(e=this.media)?void 0:e.duration)?t:this.audio.duration)?i:this.video.duration}get videoWidth(){return this.video.width}get videoHeight(){return this.video.height}}const Tl=new WeakMap;function vl(e){let t=Tl.get(e);return t||(t={closed:!1,frames:new Set},Tl.set(e,t)),t}class Sl{constructor({art:e,canvas:t,ctx:i,option:r}){var n,s;this.art=e,this.canvas=t,this.option=r,this.events=new v,this.engine=new bl({canvas:t,ctx:i,events:this.events,option:r}),this._src=null,this._volume=null!=(n=r.volume)?n:.7,this._muted=!!r.muted,this._playbackRate=1,this.engine.setVolume(this._volume,this._muted),this.setupEventForwarding(),r.source?this.src=r.source:(null==(s=e.option)?void 0:s.url)&&(this.src=e.option.url)}setupEventForwarding(){const{events:e}=this.art.constructor.config;e.forEach(e=>{this.events.addEventListener(e,e=>{this.art.emit(`video:${e.type}`,e)})})}addEventListener(e,t){this.events.addEventListener(e,t)}removeEventListener(e,t){this.events.removeEventListener(e,t)}get src(){return this._src}set src(e){this._src=e,e&&this.engine.load(e)}get currentSrc(){return this._src}get currentTime(){return this.engine.currentTime}set currentTime(e){this.engine.seek(Number(e)||0)}get duration(){return this.engine.duration}get buffered(){return this.createTimeRanges(0,this.engine.duration)}get played(){return this.createTimeRanges(0,this.engine.currentTime)}get seekable(){return this.createTimeRanges(0,this.engine.duration)}createTimeRanges(e,t){return function(e,t,i){return!e||Number.isNaN(e)||i<=0?{length:0,start:()=>0,end:()=>0}:{length:1,start:()=>t,end:()=>i}}(this.engine.duration,e,t)}get paused(){return this.engine.paused}get playing(){return!this.engine.paused&&!this.engine.ended}get ended(){return this.engine.ended}get seeking(){return this.engine.seeking}get readyState(){return this.engine.readyState}get networkState(){return this.engine.networkState}get error(){return this.engine.error}get playbackRate(){return this._playbackRate}set playbackRate(e){const t=Number(e);Number.isNaN(t)||t<=0||(this._playbackRate=t,this.engine.setPlaybackRate(t),this.events.emit("ratechange"))}get volume(){return this._volume}set volume(e){var t;this._volume=(t=e,Math.max(0,Math.min(1,Number(t)||0))),this._muted=!1,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}get muted(){return this._muted}set muted(e){this._muted=!!e,this.engine.setVolume(this._volume,this._muted),this.events.emit("volumechange")}play(){return this.engine.play()}pause(){this.engine.pause()}load(){this._src&&this.engine.load(this._src)}getM3u8State(){return this.engine.getHlsState()}switchM3u8Quality(e){return this.engine.selectHlsQuality(e)}switchM3u8Audio(e){return this.engine.selectHlsAudio(e)}get videoWidth(){return this.engine.videoWidth}get videoHeight(){return this.engine.videoHeight}get poster(){return this.option.poster||""}set poster(e){this.option.poster=e}get autoplay(){return this.option.autoplay||!1}set autoplay(e){}get loop(){return this.option.loop||!1}set loop(e){}get controls(){return!1}set controls(e){}get playsInline(){return!0}set playsInline(e){}get crossOrigin(){return this.option.crossOrigin||""}set crossOrigin(e){}get preload(){return"auto"}set preload(e){}get defaultMuted(){return!1}set defaultMuted(e){}get defaultPlaybackRate(){return 1}set defaultPlaybackRate(e){}canPlayType(e){return"maybe"}getBoundingClientRect(){return this.canvas.getBoundingClientRect()}requestVideoFrameCallback(e){return function(e,t){const i=vl(e);if(i.closed)return 0;const r=requestAnimationFrame(n=>{i.frames.delete(r),i.closed||t(n,{presentationTime:e.engine.currentTime,expectedDisplayTime:n+16.6,width:e.engine.videoWidth,height:e.engine.videoHeight,mediaTime:e.engine.currentTime,presentedFrames:0,processingDuration:0,captureTime:n,receiveTime:n,rtpTimestamp:0})});return i.frames.add(r),r}(this,e)}cancelVideoFrameCallback(e){!function(e,t){vl(e).frames.delete(t),cancelAnimationFrame(t)}(this,e)}setAttribute(e,t){"src"===e?this.src=t:"autoplay"===e?this.autoplay=t:"loop"===e?this.loop=t:"muted"===e?this.muted=!0:Reflect.apply(this.canvas.setAttribute,this.canvas,[e,t])}destroy(){if(function(e){const t=vl(e);if(t.closed)return!1;t.closed=!0;for(const i of t.frames)cancelAnimationFrame(i);return t.frames.clear(),!0}(this))try{this.engine.destroy()}finally{this.events.destroy()}}}return function(e={}){return t=>{const{constructor:i}=t,{createElement:r}=i.utils,n=r("canvas"),s=n.getContext("2d"),a=new Sl({art:t,canvas:n,ctx:s,option:e});t.mediabunny=a;const o={};for(const e in n)"function"===typeof n[e]&&(o[e]=n[e].bind(n));const l=new Set([...Object.getOwnPropertyNames(a),...Object.getOwnPropertyNames(Object.getPrototypeOf(a))]);for(const e of l)"constructor"!==e&&(e in n||Object.defineProperty(n,e,{get(){const t=a[e];return"function"===typeof t?t.bind(a):t},set(t){a[e]=t},configurable:!0,enumerable:!0}));for(const e in o)n[e]=(...t)=>o[e](...t);function c(){var e;(null==(e=t.template)?void 0:e.$player)&&!t.option.autoSize&&Object.assign(n.style,{width:"100%",height:"100%",objectFit:"contain"})}return t.on("resize",c),t.on("video:loadedmetadata",c),function({art:e,shim:t,option:i}){if(i.m3u8)return e.on("video:loadedmetadata",u),e.on("restart",u),{update:u};function r(t){e.controls.cache.has(t)&&e.controls.remove(t)}function n(t){e.setting.find(t)&&e.setting.remove(t)}function s(){r("mediabunny-quality"),n("mediabunny-quality")}function a(){r("mediabunny-audio"),n("mediabunny-audio")}function o(e={}){return e.control||e.setting}function l(r){return p(this,null,function*(){var n;const a=(null==(n=i.m3u8)?void 0:n.quality)||{};if(!o(a)||!(null==r?void 0:r.levels.length))return void s();const l=a.auto||"Auto",c=a.title||"Quality",d=a.getName||(e=>e.name||`${e.height}P`),h=r.currentLevel?d(r.currentLevel):l,f=T(r.levels.map(e=>{var t;return{html:d(e),value:e.id,default:(null==(t=r.currentLevel)?void 0:t.id)===e.id}}),"html").sort((e,t)=>{const i=r.levels.find(t=>t.id===e.value),n=r.levels.find(e=>e.id===t.value);return((null==n?void 0:n.height)||0)-((null==i?void 0:i.height)||0)});f.push({html:l,value:"auto",default:!r.currentLevel});const m=i=>p(null,null,function*(){return yield t.switchM3u8Quality(i.value),e.notice.show=`${c}: ${i.html}`,yield u(),i.html});a.control&&e.controls.update({name:"mediabunny-quality",position:"right",html:h,style:{padding:"0 10px"},selector:f,onSelect:m}),a.setting&&e.setting.update({name:"mediabunny-quality",tooltip:h,html:c,icon:'',width:200,selector:f,onSelect:m})})}function c(r){return p(this,null,function*(){var n;const s=(null==(n=i.m3u8)?void 0:n.audio)||{};if(!o(s)||!(null==r?void 0:r.audios.length)||r.audios.length<2)return void a();const l=s.auto||"Auto",c=s.title||"Audio",d=s.getName||(e=>e.name||e.lang||e.language),h=r.currentAudio?d(r.currentAudio):l,f=T(r.audios.map(e=>{var t;return{html:d(e),value:e.id,default:(null==(t=r.currentAudio)?void 0:t.id)===e.id}}),"html");f.push({html:l,value:"auto",default:!r.currentAudio});const m=i=>p(null,null,function*(){return yield t.switchM3u8Audio(i.value),e.notice.show=`${c}: ${i.html}`,yield u(),i.html});s.control&&e.controls.update({name:"mediabunny-audio",position:"right",html:h,style:{padding:"0 10px"},selector:f,onSelect:m}),s.setting&&e.setting.update({name:"mediabunny-audio",tooltip:h,html:c,icon:'',width:200,selector:f,onSelect:m})})}function u(){return p(this,null,function*(){const e=yield t.getM3u8State();if(!e)return s(),void a();yield Promise.all([l(e),c(e)])})}}({art:t,shim:a,option:e}),t.on("destroy",()=>{delete t.mediabunny,a.destroy()}),n}}}); diff --git a/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.mjs b/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.mjs index 182167ee4..bc85640b8 100644 --- a/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.mjs +++ b/packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.mjs @@ -4,6 +4,14 @@ * (c) 2017-2026 Harvey Zhao * Released under the MIT License. */ +var __typeError = (msg) => { + throw TypeError(msg); +}; +var __accessCheck = (obj, member, msg) => member.has(obj) || __typeError("Cannot " + msg); +var __privateGet = (obj, member, getter) => (__accessCheck(obj, member, "read from private field"), getter ? getter.call(obj) : member.get(obj)); +var __privateAdd = (obj, member, value) => member.has(obj) ? __typeError("Cannot add the same private member more than once") : member instanceof WeakSet ? member.add(obj) : member.set(obj, value); +var __privateSet = (obj, member, value, setter) => (__accessCheck(obj, member, "write to private field"), setter ? setter.call(obj, value) : member.set(obj, value), value); +var _closed; const $audio = ''; const $quality = ''; function uniqBy(array, property) { @@ -40,34 +48,34 @@ function setupM3u8Controls({ art, shim, option }) { function canRender(config = {}) { return config.control || config.setting; } - async function updateQuality(state) { + async function updateQuality(state2) { const config = option.m3u8?.quality || {}; - if (!canRender(config) || !state?.levels.length) { + if (!canRender(config) || !state2?.levels.length) { clearQuality(); return; } const auto = config.auto || "Auto"; const title = config.title || "Quality"; const getName = config.getName || ((level) => level.name || `${level.height}P`); - const defaultHtml = state.currentLevel ? getName(state.currentLevel) : auto; + const defaultHtml = state2.currentLevel ? getName(state2.currentLevel) : auto; const selector = uniqBy( - state.levels.map((item) => { + state2.levels.map((item) => { return { html: getName(item), value: item.id, - default: state.currentLevel?.id === item.id + default: state2.currentLevel?.id === item.id }; }), "html" ).sort((a, b) => { - const left = state.levels.find((item) => item.id === a.value); - const right = state.levels.find((item) => item.id === b.value); + const left = state2.levels.find((item) => item.id === a.value); + const right = state2.levels.find((item) => item.id === b.value); return (right?.height || 0) - (left?.height || 0); }); selector.push({ html: auto, value: "auto", - default: !state.currentLevel + default: !state2.currentLevel }); const onSelect = async (item) => { await shim.switchM3u8Quality(item.value); @@ -97,22 +105,22 @@ function setupM3u8Controls({ art, shim, option }) { }); } } - async function updateAudio(state) { + async function updateAudio(state2) { const config = option.m3u8?.audio || {}; - if (!canRender(config) || !state?.audios.length || state.audios.length < 2) { + if (!canRender(config) || !state2?.audios.length || state2.audios.length < 2) { clearAudio(); return; } const auto = config.auto || "Auto"; const title = config.title || "Audio"; const getName = config.getName || ((track) => track.name || track.lang || track.language); - const defaultHtml = state.currentAudio ? getName(state.currentAudio) : auto; + const defaultHtml = state2.currentAudio ? getName(state2.currentAudio) : auto; const selector = uniqBy( - state.audios.map((item) => { + state2.audios.map((item) => { return { html: getName(item), value: item.id, - default: state.currentAudio?.id === item.id + default: state2.currentAudio?.id === item.id }; }), "html" @@ -120,7 +128,7 @@ function setupM3u8Controls({ art, shim, option }) { selector.push({ html: auto, value: "auto", - default: !state.currentAudio + default: !state2.currentAudio }); const onSelect = async (item) => { await shim.switchM3u8Audio(item.value); @@ -151,15 +159,15 @@ function setupM3u8Controls({ art, shim, option }) { } } async function update() { - const state = await shim.getM3u8State(); - if (!state) { + const state2 = await shim.getM3u8State(); + if (!state2) { clearQuality(); clearAudio(); return; } await Promise.all([ - updateQuality(state), - updateAudio(state) + updateQuality(state2), + updateAudio(state2) ]); } art.on("video:loadedmetadata", update); @@ -168,32 +176,39 @@ function setupM3u8Controls({ art, shim, option }) { } class EventTarget { constructor() { + __privateAdd(this, _closed, false); this.listeners = /* @__PURE__ */ new Map(); } addEventListener(type, fn) { - if (!this.listeners.has(type)) { + if (__privateGet(this, _closed)) + return; + if (!this.listeners.has(type)) this.listeners.set(type, []); - } - this.listeners.get(type).push(fn); + this.listeners.get(type)?.push(fn); } removeEventListener(type, fn) { const list = this.listeners.get(type); if (!list) return; const index = list.indexOf(fn); - if (index >= 0) { + if (index >= 0) list.splice(index, 1); - } } emit(type, detail) { - const evt = new Event(type); - evt.detail = detail; - const list = this.listeners.get(type); - if (list) { - list.forEach((fn) => fn(evt)); - } + if (__privateGet(this, _closed)) + return; + const event = Object.assign(new Event(type), { detail }); + this.listeners.get(type)?.forEach((fn) => { + if (!__privateGet(this, _closed)) + fn(event); + }); + } + destroy() { + __privateSet(this, _closed, true); + this.listeners.clear(); } } +_closed = new WeakMap(); function assert(x) { if (!x) { throw new Error("Assertion failed."); @@ -479,7 +494,7 @@ const mapAsyncGenerator = (generator, map) => { } }; }; -const clamp$1 = (value, min, max) => { +const clamp = (value, min, max) => { return Math.max(min, Math.min(max, value)); }; const UNDETERMINED_LANGUAGE = "und"; @@ -15172,7 +15187,7 @@ class UrlSource extends PathedSource { if (baseSize === null) { return this._length !== null ? this._length : null; } - return clamp$1(baseSize - this._offset, 0, this._length ?? Infinity); + return clamp(baseSize - this._offset, 0, this._length ?? Infinity); } /** @internal */ _read(start, end, minReadPosition, maxReadPosition) { @@ -16113,7 +16128,7 @@ class RangedSource extends Source { return null; } } - return clamp$1(baseSize - this._offset, 0, this._length ?? Infinity); + return clamp(baseSize - this._offset, 0, this._length ?? Infinity); } /** @internal */ _read(start, end, minReadPosition, maxReadPosition) { @@ -19826,13 +19841,13 @@ const getWriteFunction = (format) => { switch (format) { case "u8": case "u8-planar": - return (view, offset, value) => view.setUint8(offset, clamp$1((value + 1) * 127.5, 0, 255)); + return (view, offset, value) => view.setUint8(offset, clamp((value + 1) * 127.5, 0, 255)); case "s16": case "s16-planar": - return (view, offset, value) => view.setInt16(offset, clamp$1(Math.round(value * 32767), -32768, 32767), true); + return (view, offset, value) => view.setInt16(offset, clamp(Math.round(value * 32767), -32768, 32767), true); case "s32": case "s32-planar": - return (view, offset, value) => view.setInt32(offset, clamp$1(Math.round(value * 2147483647), -2147483648, 2147483647), true); + return (view, offset, value) => view.setInt32(offset, clamp(Math.round(value * 2147483647), -2147483648, 2147483647), true); case "f32": case "f32-planar": return (view, offset, value) => view.setFloat32(offset, value, true); @@ -20901,7 +20916,7 @@ class ColorAlphaMerger { const blob = new Blob([`(${colorAlphaMergerWorkerCode.toString()})()`], { type: "application/javascript" }); mergerWorkerUrl = URL.createObjectURL(blob); } - const poolSize = clamp$1(navigator.hardwareConcurrency, 1, 4); + const poolSize = clamp(navigator.hardwareConcurrency, 1, 4); for (let i = 0; i < poolSize; i++) { const worker2 = new Worker(mergerWorkerUrl); worker2.addEventListener("message", (event) => { @@ -23165,7 +23180,7 @@ class Reader { return null; } if (this.fileSizeNonStrict !== null) { - return this.requestSlice(start, clamp$1(this.fileSizeNonStrict - start, minLength, maxLength)); + return this.requestSlice(start, clamp(this.fileSizeNonStrict - start, minLength, maxLength)); } else { const promisedAttempt = this.requestSlice(start, maxLength); const handleAttempt = (attempt) => { @@ -23173,7 +23188,7 @@ class Reader { return attempt; } assert(this.fileSizeNonStrict !== null); - return this.requestSlice(start, clamp$1(this.fileSizeNonStrict - start, minLength, maxLength)); + return this.requestSlice(start, clamp(this.fileSizeNonStrict - start, minLength, maxLength)); }; if (isThenable(promisedAttempt)) { return promisedAttempt.then(handleAttempt); @@ -24929,8 +24944,59 @@ class MediaBunnyEngine { return this.video.height; } } -function clamp(v, min, max) { - return Math.max(min, Math.min(max, Number(v) || 0)); +const states = /* @__PURE__ */ new WeakMap(); +function state(owner) { + let value = states.get(owner); + if (!value) { + value = { closed: false, frames: /* @__PURE__ */ new Set() }; + states.set(owner, value); + } + return value; +} +function requestFrame(owner, callback) { + const resource = state(owner); + if (resource.closed) + return 0; + const id = requestAnimationFrame((time) => { + resource.frames.delete(id); + if (resource.closed) + return; + callback(time, { + presentationTime: owner.engine.currentTime, + expectedDisplayTime: time + 16.6, + width: owner.engine.videoWidth, + height: owner.engine.videoHeight, + mediaTime: owner.engine.currentTime, + presentedFrames: 0, + processingDuration: 0, + captureTime: time, + receiveTime: time, + rtpTimestamp: 0 + }); + }); + resource.frames.add(id); + return id; +} +function cancelFrame(owner, id) { + state(owner).frames.delete(id); + cancelAnimationFrame(id); +} +function closeFrames(owner) { + const resource = state(owner); + if (resource.closed) + return false; + resource.closed = true; + for (const id of resource.frames) cancelAnimationFrame(id); + resource.frames.clear(); + return true; +} +function clampVolume(value) { + return Math.max(0, Math.min(1, Number(value) || 0)); +} +function timeRanges(duration, start, end) { + if (!duration || Number.isNaN(duration) || end <= 0) + return { length: 0, start: () => 0, end: () => 0 }; + return { length: 1, start: () => start, end: () => end }; } class VideoShim { constructor({ art, canvas, ctx, option }) { @@ -24999,15 +25065,7 @@ class VideoShim { return this.createTimeRanges(0, this.engine.duration); } createTimeRanges(start, end) { - const duration = this.engine.duration; - if (!duration || Number.isNaN(duration) || end <= 0) { - return { length: 0, start: () => 0, end: () => 0 }; - } - return { - length: 1, - start: () => start, - end: () => end - }; + return timeRanges(this.engine.duration, start, end); } // Playback state get paused() { @@ -25049,7 +25107,7 @@ class VideoShim { return this._volume; } set volume(v) { - this._volume = clamp(v, 0, 1); + this._volume = clampVolume(v); this._muted = false; this.engine.setVolume(this._volume, this._muted); this.events.emit("volumechange"); @@ -25144,24 +25202,10 @@ class VideoShim { return this.canvas.getBoundingClientRect(); } requestVideoFrameCallback(callback) { - const id = requestAnimationFrame((time) => { - callback(time, { - presentationTime: this.engine.currentTime, - expectedDisplayTime: time + 16.6, - width: this.engine.videoWidth, - height: this.engine.videoHeight, - mediaTime: this.engine.currentTime, - presentedFrames: 0, - processingDuration: 0, - captureTime: time, - receiveTime: time, - rtpTimestamp: 0 - }); - }); - return id; + return requestFrame(this, callback); } cancelVideoFrameCallback(id) { - cancelAnimationFrame(id); + cancelFrame(this, id); } setAttribute(name, value) { if (name === "src") { @@ -25173,11 +25217,17 @@ class VideoShim { } else if (name === "muted") { this.muted = true; } else { - this.canvas.setAttribute(name, value); + Reflect.apply(this.canvas.setAttribute, this.canvas, [name, value]); } } destroy() { - this.engine.destroy(); + if (!closeFrames(this)) + return; + try { + this.engine.destroy(); + } finally { + this.events.destroy(); + } } } function artplayerProxyMediabunny(option = {}) { diff --git a/packages/artplayer-proxy-mediabunny/src/EventTarget.js b/packages/artplayer-proxy-mediabunny/src/EventTarget.js deleted file mode 100644 index 2e9d1c84d..000000000 --- a/packages/artplayer-proxy-mediabunny/src/EventTarget.js +++ /dev/null @@ -1,37 +0,0 @@ -/** - * Event Target Implementation - * Simple event system for video events - */ -export default class EventTarget { - constructor() { - this.listeners = new Map() - } - - addEventListener(type, fn) { - if (!this.listeners.has(type)) { - this.listeners.set(type, []) - } - this.listeners.get(type).push(fn) - } - - removeEventListener(type, fn) { - const list = this.listeners.get(type) - if (!list) - return - - const index = list.indexOf(fn) - if (index >= 0) { - list.splice(index, 1) - } - } - - emit(type, detail) { - const evt = new Event(type) - evt.detail = detail - - const list = this.listeners.get(type) - if (list) { - list.forEach(fn => fn(evt)) - } - } -} diff --git a/packages/artplayer-proxy-mediabunny/src/EventTarget.ts b/packages/artplayer-proxy-mediabunny/src/EventTarget.ts new file mode 100644 index 000000000..fd58e2ea5 --- /dev/null +++ b/packages/artplayer-proxy-mediabunny/src/EventTarget.ts @@ -0,0 +1,44 @@ +export type MediaEvent = Event & { detail: unknown } +export type MediaListener = (event: MediaEvent) => unknown + +export default class EventTarget { + declare listeners: Map + #closed = false + + constructor() { + this.listeners = new Map() + } + + addEventListener(type: string, fn: MediaListener): void { + if (this.#closed) + return + if (!this.listeners.has(type)) + this.listeners.set(type, []) + this.listeners.get(type)?.push(fn) + } + + removeEventListener(type: string, fn: MediaListener): void { + const list = this.listeners.get(type) + if (!list) + return + const index = list.indexOf(fn) + if (index >= 0) + list.splice(index, 1) + } + + emit(type: string, detail?: unknown): void { + if (this.#closed) + return + const event = Object.assign(new Event(type), { detail }) + // Keep historical live-array forEach semantics and uncaught listener exceptions. + this.listeners.get(type)?.forEach((fn) => { + if (!this.#closed) + fn(event) + }) + } + + destroy(): void { + this.#closed = true + this.listeners.clear() + } +} diff --git a/packages/artplayer-proxy-mediabunny/src/MediaBunnyEngine.d.ts b/packages/artplayer-proxy-mediabunny/src/MediaBunnyEngine.d.ts new file mode 100644 index 000000000..171822c30 --- /dev/null +++ b/packages/artplayer-proxy-mediabunny/src/MediaBunnyEngine.d.ts @@ -0,0 +1,4 @@ +import type { EngineOptions, EnginePort } from './engine-types' + +declare const MediaBunnyEngine: new (options: EngineOptions) => EnginePort +export default MediaBunnyEngine diff --git a/packages/artplayer-proxy-mediabunny/src/VideoShim.js b/packages/artplayer-proxy-mediabunny/src/VideoShim.ts similarity index 68% rename from packages/artplayer-proxy-mediabunny/src/VideoShim.js rename to packages/artplayer-proxy-mediabunny/src/VideoShim.ts index 085ee150a..b3a74a351 100644 --- a/packages/artplayer-proxy-mediabunny/src/VideoShim.js +++ b/packages/artplayer-proxy-mediabunny/src/VideoShim.ts @@ -1,16 +1,22 @@ -import EventTarget from './EventTarget.js' -/** - * Video Element Shim - * Simulates HTMLVideoElement interface for MediaBunny - */ +import type { EngineOptions, EnginePort, ProxyOptions, ShimHost } from './engine-types' +import type { MediaListener } from './EventTarget' +import EventTarget from './EventTarget' import MediaBunnyEngine from './MediaBunnyEngine.js' - -function clamp(v, min, max) { - return Math.max(min, Math.min(max, Number(v) || 0)) -} +import { cancelFrame, closeFrames, requestFrame } from './shim-frames' +import { clampVolume, timeRanges } from './shim-values' export default class VideoShim { - constructor({ art, canvas, ctx, option }) { + declare art: ShimHost + declare canvas: HTMLCanvasElement + declare option: ProxyOptions + declare events: EventTarget + declare engine: EnginePort + declare _src: unknown + declare _volume: number + declare _muted: boolean + declare _playbackRate: number + + constructor({ art, canvas, ctx, option }: Omit & { art: ShimHost, option: ProxyOptions }) { this.art = art this.canvas = canvas this.option = option @@ -52,11 +58,11 @@ export default class VideoShim { } // Event methods - addEventListener(type, fn) { + addEventListener(type: string, fn: MediaListener) { this.events.addEventListener(type, fn) } - removeEventListener(type, fn) { + removeEventListener(type: string, fn: MediaListener) { this.events.removeEventListener(type, fn) } @@ -65,7 +71,7 @@ export default class VideoShim { return this._src } - set src(v) { + set src(v: unknown) { this._src = v if (v) this.engine.load(v) @@ -80,7 +86,7 @@ export default class VideoShim { return this.engine.currentTime } - set currentTime(t) { + set currentTime(t: unknown) { this.engine.seek(Number(t) || 0) } @@ -101,16 +107,8 @@ export default class VideoShim { return this.createTimeRanges(0, this.engine.duration) } - createTimeRanges(start, end) { - const duration = this.engine.duration - if (!duration || Number.isNaN(duration) || end <= 0) { - return { length: 0, start: () => 0, end: () => 0 } - } - return { - length: 1, - start: () => start, - end: () => end, - } + createTimeRanges(start: number, end: number): TimeRanges { + return timeRanges(this.engine.duration, start, end) } // Playback state @@ -148,7 +146,7 @@ export default class VideoShim { return this._playbackRate } - set playbackRate(v) { + set playbackRate(v: unknown) { const rate = Number(v) if (Number.isNaN(rate) || rate <= 0) return @@ -163,8 +161,8 @@ export default class VideoShim { return this._volume } - set volume(v) { - this._volume = clamp(v, 0, 1) + set volume(v: unknown) { + this._volume = clampVolume(v) this._muted = false this.engine.setVolume(this._volume, this._muted) this.events.emit('volumechange') @@ -174,7 +172,7 @@ export default class VideoShim { return this._muted } - set muted(v) { + set muted(v: unknown) { this._muted = !!v this.engine.setVolume(this._volume, this._muted) this.events.emit('volumechange') @@ -198,11 +196,11 @@ export default class VideoShim { return this.engine.getHlsState() } - switchM3u8Quality(value) { + switchM3u8Quality(value: unknown) { return this.engine.selectHlsQuality(value) } - switchM3u8Audio(value) { + switchM3u8Audio(value: unknown) { return this.engine.selectHlsAudio(value) } @@ -220,7 +218,7 @@ export default class VideoShim { return this.option.poster || '' } - set poster(v) { + set poster(v: string) { this.option.poster = v } @@ -228,52 +226,52 @@ export default class VideoShim { return this.option.autoplay || false } - set autoplay(v) {} + set autoplay(v: unknown) {} get loop() { return this.option.loop || false } - set loop(v) {} + set loop(v: unknown) {} get controls() { return false } - set controls(v) {} + set controls(v: unknown) {} get playsInline() { return true } - set playsInline(v) {} + set playsInline(v: unknown) {} get crossOrigin() { return this.option.crossOrigin || '' } - set crossOrigin(v) {} + set crossOrigin(v: unknown) {} get preload() { return 'auto' } - set preload(v) {} + set preload(v: unknown) {} get defaultMuted() { return false } - set defaultMuted(v) {} + set defaultMuted(v: unknown) {} get defaultPlaybackRate() { return 1 } - set defaultPlaybackRate(v) {} + set defaultPlaybackRate(v: unknown) {} // Methods - canPlayType(_type) { + canPlayType(_type: string) { return 'maybe' } @@ -281,29 +279,15 @@ export default class VideoShim { return this.canvas.getBoundingClientRect() } - requestVideoFrameCallback(callback) { - const id = requestAnimationFrame((time) => { - callback(time, { - presentationTime: this.engine.currentTime, - expectedDisplayTime: time + 16.6, - width: this.engine.videoWidth, - height: this.engine.videoHeight, - mediaTime: this.engine.currentTime, - presentedFrames: 0, - processingDuration: 0, - captureTime: time, - receiveTime: time, - rtpTimestamp: 0, - }) - }) - return id + requestVideoFrameCallback(callback: VideoFrameRequestCallback): number { + return requestFrame(this, callback) } - cancelVideoFrameCallback(id) { - cancelAnimationFrame(id) + cancelVideoFrameCallback(id: number): void { + cancelFrame(this, id) } - setAttribute(name, value) { + setAttribute(name: string, value: unknown) { if (name === 'src') { this.src = value } @@ -317,11 +301,18 @@ export default class VideoShim { this.muted = true } else { - this.canvas.setAttribute(name, value) + Reflect.apply(this.canvas.setAttribute, this.canvas, [name, value]) } } - destroy() { - this.engine.destroy() + destroy(): void { + if (!closeFrames(this)) + return + try { + this.engine.destroy() + } + finally { + this.events.destroy() + } } } diff --git a/packages/artplayer-proxy-mediabunny/src/engine-types.ts b/packages/artplayer-proxy-mediabunny/src/engine-types.ts new file mode 100644 index 000000000..f594d51bb --- /dev/null +++ b/packages/artplayer-proxy-mediabunny/src/engine-types.ts @@ -0,0 +1,44 @@ +import type factory from '../types/artplayer-proxy-mediabunny' +import type EventTarget from './EventTarget' +import type { MediaEvent } from './EventTarget' +import type { getHlsState } from './hls-state' + +export type ProxyOptions = NonNullable[0]> +export type HlsState = Awaited> + +export interface ShimHost { + constructor: { config: { events: readonly string[] } } + option: { url?: unknown } + emit: (type: string, event: MediaEvent) => unknown +} + +export interface EngineOptions { + canvas: HTMLCanvasElement + ctx: CanvasRenderingContext2D | null + events: EventTarget + option?: ProxyOptions +} + +// Transitional boundary for the coordinator; replaced by its strict implementation in MB-04. +export interface EnginePort { + readonly currentTime: number + readonly duration: number + readonly videoWidth: number + readonly videoHeight: number + paused: boolean + ended: boolean + seeking: boolean + readyState: number + networkState: number + error: { code: number, message: string } | null + play: () => Promise + pause: () => void + load: (source: unknown) => Promise + seek: (time: number) => Promise + destroy: () => void + setVolume: (volume: number, muted: boolean) => void + setPlaybackRate: (rate: number) => void + getHlsState: () => Promise + selectHlsQuality: (value: unknown) => Promise + selectHlsAudio: (value: unknown) => Promise +} diff --git a/packages/artplayer-proxy-mediabunny/src/shim-frames.ts b/packages/artplayer-proxy-mediabunny/src/shim-frames.ts new file mode 100644 index 000000000..4078246e3 --- /dev/null +++ b/packages/artplayer-proxy-mediabunny/src/shim-frames.ts @@ -0,0 +1,61 @@ +import type { EnginePort } from './engine-types' + +interface FrameOwner { + engine: Pick +} + +interface FrameState { + closed: boolean + frames: Set +} + +// Keep resource bookkeeping off the observable shim own-property/canvas surface. +const states = new WeakMap() +function state(owner: FrameOwner): FrameState { + let value = states.get(owner) + if (!value) { + value = { closed: false, frames: new Set() } + states.set(owner, value) + } + return value +} + +export function requestFrame(owner: FrameOwner, callback: VideoFrameRequestCallback): number { + const resource = state(owner) + if (resource.closed) + return 0 + const id = requestAnimationFrame((time) => { + resource.frames.delete(id) + if (resource.closed) + return + callback(time, { + presentationTime: owner.engine.currentTime, + expectedDisplayTime: time + 16.6, + width: owner.engine.videoWidth, + height: owner.engine.videoHeight, + mediaTime: owner.engine.currentTime, + presentedFrames: 0, + processingDuration: 0, + captureTime: time, + receiveTime: time, + rtpTimestamp: 0, + }) + }) + resource.frames.add(id) + return id +} + +export function cancelFrame(owner: FrameOwner, id: number): void { + state(owner).frames.delete(id) + cancelAnimationFrame(id) +} + +export function closeFrames(owner: FrameOwner): boolean { + const resource = state(owner) + if (resource.closed) + return false + resource.closed = true + for (const id of resource.frames) cancelAnimationFrame(id) + resource.frames.clear() + return true +} diff --git a/packages/artplayer-proxy-mediabunny/src/shim-values.ts b/packages/artplayer-proxy-mediabunny/src/shim-values.ts new file mode 100644 index 000000000..22ae11e7a --- /dev/null +++ b/packages/artplayer-proxy-mediabunny/src/shim-values.ts @@ -0,0 +1,9 @@ +export function clampVolume(value: unknown): number { + return Math.max(0, Math.min(1, Number(value) || 0)) +} + +export function timeRanges(duration: number, start: number, end: number): TimeRanges { + if (!duration || Number.isNaN(duration) || end <= 0) + return { length: 0, start: () => 0, end: () => 0 } + return { length: 1, start: () => start, end: () => end } +} diff --git a/refactor/baselines/mb-coordination-source.json b/refactor/baselines/mb-coordination-source.json new file mode 100644 index 000000000..44bc92058 --- /dev/null +++ b/refactor/baselines/mb-coordination-source.json @@ -0,0 +1,10 @@ +{ + "sourceCommit": "adba8a3d127472ad7ae146e64dcb67568639520e", + "sourceSha256LF": { + "packages/artplayer-proxy-mediabunny/src/MediaBunnyEngine.js": "5ce3bc85572121ec9068fbc051ac4845d3a3991e670e10dafcaede1c1609f1fb", + "packages/artplayer-proxy-mediabunny/src/VideoShim.js": "f01c954e8a98fb70138dded78b99eb2765f5cd1e8a98dafbb35ffbf8f7741dbb", + "packages/artplayer-proxy-mediabunny/src/EventTarget.js": "c1854510af5a37301b4bd3b1fbcc28f7e0f105f50cb67324c5c05a76f2d054fb", + "packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.js": "f9d5571f75f47ee1714d04c951836c1a6c903f4e465fab2a267dcb4948c0de7b" + }, + "scope": "MB-03 completion before MB-04 coordination edits; not a published release" +} diff --git a/refactor/baselines/mb-shim-checkpoint.json b/refactor/baselines/mb-shim-checkpoint.json new file mode 100644 index 000000000..f3ea049a3 --- /dev/null +++ b/refactor/baselines/mb-shim-checkpoint.json @@ -0,0 +1,708 @@ +{ + "task": "PKG-MB-04", + "status": "doing", + "checkpoint": "Shim/event/RAF lifecycle only; coordinator remains incomplete", + "parentCommit": "adba8a3d127472ad7ae146e64dcb67568639520e", + "sourceSha256LF": { + "packages/artplayer-proxy-mediabunny/src/AudioEngine.js": "910d6831372e4895d55dec78010f281a199bc88f99735630a5a3b621f192ac35", + "packages/artplayer-proxy-mediabunny/src/engine-types.ts": "815e99c75c63abe126dceddbde6d79f6cd5fc435ce2de76d508d5ea407419ffa", + "packages/artplayer-proxy-mediabunny/src/EventTarget.ts": "4cea57e59b0a1118744a55b0a87c1df28cb0d69c26c50f9275039fe7540c9720", + "packages/artplayer-proxy-mediabunny/src/hls-state.ts": "ff9ffd742f9763349df1f50eac6b6bd488a80d05aaab8ca198f387f0d17d5e25", + "packages/artplayer-proxy-mediabunny/src/index.js": "4e1be8937908ff6e6ef8a4e863e22b4468312cf31d66ac299322e475757773bb", + "packages/artplayer-proxy-mediabunny/src/input.ts": "d25b1c4ee4aee358c86fd8c554b8b36bfc23fdbd3c27fa21d2cd7e812c98bf9c", + "packages/artplayer-proxy-mediabunny/src/load-session.ts": "560fbd5935fc787bde5f413fcaa41b8829506179c5328ce3cb51e734bbba8cec", + "packages/artplayer-proxy-mediabunny/src/m3u8.js": "4639f09e0c743dc2b24078f48ca1e58eaaedaa3f5e6b863583cbd4bc4a7d3142", + "packages/artplayer-proxy-mediabunny/src/media.ts": "e745cd8e750e05d0fcfa4bc588f7eb5a5576f3be20f5e67b65b704f57d539ae9", + "packages/artplayer-proxy-mediabunny/src/MediaBunnyEngine.d.ts": "9c1e2b3cf9ffe5aa1c50a0e6bc13c1e986b8178440393efbaa22d6013b850bca", + "packages/artplayer-proxy-mediabunny/src/MediaBunnyEngine.js": "5ce3bc85572121ec9068fbc051ac4845d3a3991e670e10dafcaede1c1609f1fb", + "packages/artplayer-proxy-mediabunny/src/preflight.ts": "d296234312f23b97a1e0a054f1d7dbbc988d5240c5fd5089c36df1677c7b7348", + "packages/artplayer-proxy-mediabunny/src/shim-frames.ts": "172b222f997a711c2cc7741f189f05127a4ac5099c1cbe2729e903b36b4ce24a", + "packages/artplayer-proxy-mediabunny/src/shim-values.ts": "a93ee17e87cc7db24f4b02d866af8af206d3007d01def446906fb769c20de17d", + "packages/artplayer-proxy-mediabunny/src/tracks.ts": "6da68530c1fc7105ab17ed742d87d93e84447e822e84386591f9c3e6d0bec733", + "packages/artplayer-proxy-mediabunny/src/VideoEngine.js": "5ac862b0fd9c196dc6656f8908a214c1b3a0a53a7e85ff845d9068888831986b", + "packages/artplayer-proxy-mediabunny/src/VideoShim.ts": "c3dab22ac6fe89a19b6f1d7f786a4e087bc8be69888836f2b136d04734b5f9df", + "packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.js": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.legacy.js": "4e284e02970cf2f42b809ade1210ebe69d40c329597a0d01e0d25ad0e2a326a3", + "packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.mjs": "a2e60ecdf57b7dfd4403674ae9ed704c91b181fc197611e213b053ff3c949003", + "packages/artplayer-proxy-mediabunny/ARCHITECTURE.md": "af6520c10d7ba23110eb42d44b3b023d1e1c5a0fc659d51f720bd8903a18b98d", + "package.json": "32ed93187014731cf8a28ac4b759260486fa058a02dce397d08a65964ae9de20", + "test/mediabunny-shim.test.js": "2675b3b6575c26505d1a3646e96a7abffe909db07416a046dc105ca30635484e", + "test/browser/mediabunny-shim.spec.js": "92b10cc955b0ab397eede78a1af386ae02ef92a1c0631ccddc4f539f4e4532cd" + }, + "node": { + "total": 68, + "shim": 12, + "sameShimAssertionsOnPreviousMain": { + "passed": 9, + "failed": 3 + }, + "mainShimAndLoad": 32, + "legacyShimAndLoad": 32, + "artifactScope": "Each 32-case main/legacy command contains 28 candidate artifact assertions and four frozen normal-event controls." + }, + "browser": { + "total": 39, + "outcomes": { + "native-input-playback-and-seek": 10, + "candidate-trackless-readiness-gap": 2, + "unsupported-capability-control": 6, + "native-pending-stream-cancellation": 9, + "native-synthetic-raf": 9, + "native-mp4-playback-observed": 2, + "verified-unsupported-capability-control": 1 + }, + "records": [ + { + "project": "chromium", + "browser": "153.0.8010.12", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "webm", + "outcome": "native-input-playback-and-seek", + "cleanup": { + "audioContext": "closed", + "pendingFrames": 0, + "streamCancelled": false + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "chromium", + "browser": "153.0.8010.12", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "blob", + "outcome": "native-input-playback-and-seek", + "cleanup": { + "audioContext": "closed", + "pendingFrames": 0, + "streamCancelled": false + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "chromium", + "browser": "153.0.8010.12", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "stream", + "outcome": "native-input-playback-and-seek", + "cleanup": { + "audioContext": "closed", + "pendingFrames": 0, + "streamCancelled": true + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "chromium", + "browser": "153.0.8010.12", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "audio", + "outcome": "native-input-playback-and-seek", + "cleanup": { + "audioContext": "closed", + "pendingFrames": 0, + "streamCancelled": false + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "chromium", + "browser": "153.0.8010.12", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "hls", + "outcome": "native-input-playback-and-seek", + "cleanup": { + "audioContext": "closed", + "pendingFrames": 0, + "streamCancelled": false + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "chromium", + "browser": "153.0.8010.12", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "trackless", + "outcome": "candidate-trackless-readiness-gap", + "cleanup": { + "audioContext": "closed", + "pendingFrames": 0, + "streamCancelled": false + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "firefox", + "browser": "155.0", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "webm", + "outcome": "native-input-playback-and-seek", + "cleanup": { + "audioContext": "closed", + "pendingFrames": 0, + "streamCancelled": false + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "firefox", + "browser": "155.0", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "blob", + "outcome": "native-input-playback-and-seek", + "cleanup": { + "audioContext": "closed", + "pendingFrames": 0, + "streamCancelled": false + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "firefox", + "browser": "155.0", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "stream", + "outcome": "native-input-playback-and-seek", + "cleanup": { + "audioContext": "closed", + "pendingFrames": 0, + "streamCancelled": true + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "firefox", + "browser": "155.0", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "audio", + "outcome": "native-input-playback-and-seek", + "cleanup": { + "audioContext": "closed", + "pendingFrames": 0, + "streamCancelled": false + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "firefox", + "browser": "155.0", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "hls", + "outcome": "native-input-playback-and-seek", + "cleanup": { + "audioContext": "closed", + "pendingFrames": 0, + "streamCancelled": false + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "firefox", + "browser": "155.0", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "trackless", + "outcome": "candidate-trackless-readiness-gap", + "cleanup": { + "audioContext": "closed", + "pendingFrames": 0, + "streamCancelled": false + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "webkit", + "browser": "26.6", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "webm", + "outcome": "unsupported-capability-control", + "cleanup": { + "audioContext": "not-created", + "pendingFrames": 0, + "streamCancelled": false + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "webkit", + "browser": "26.6", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "blob", + "outcome": "unsupported-capability-control", + "cleanup": { + "audioContext": "not-created", + "pendingFrames": 0, + "streamCancelled": false + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "webkit", + "browser": "26.6", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "stream", + "outcome": "unsupported-capability-control", + "cleanup": { + "audioContext": "not-created", + "pendingFrames": 0, + "streamCancelled": true + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "webkit", + "browser": "26.6", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "audio", + "outcome": "unsupported-capability-control", + "cleanup": { + "audioContext": "not-created", + "pendingFrames": 0, + "streamCancelled": false + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "webkit", + "browser": "26.6", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "hls", + "outcome": "unsupported-capability-control", + "cleanup": { + "audioContext": "not-created", + "pendingFrames": 0, + "streamCancelled": false + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "webkit", + "browser": "26.6", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "input": "trackless", + "outcome": "unsupported-capability-control", + "cleanup": { + "audioContext": "not-created", + "pendingFrames": 0, + "streamCancelled": false + }, + "scope": "Identified proxy with native browser media and controlled ArtPlayer host using actual core utilities/config; frame timestamps sampled against the SDK audio clock, not acoustic/long-run AV-sync acceptance. Cleanup checks settled playback, not pending-operation races. Candidate trackless readiness remains MB-READY-01, not release acceptance." + }, + { + "project": "chromium", + "browser": "153.0.8010.12", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "ending": "destroy", + "outcome": "native-pending-stream-cancellation", + "cancellations": [ + "old" + ], + "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup." + }, + { + "project": "chromium", + "browser": "153.0.8010.12", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "ending": "source", + "outcome": "native-pending-stream-cancellation", + "cancellations": [ + "old", + "new" + ], + "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup." + }, + { + "project": "chromium", + "browser": "153.0.8010.12", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "ending": "timeout", + "outcome": "native-pending-stream-cancellation", + "cancellations": [ + "old" + ], + "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup." + }, + { + "project": "firefox", + "browser": "155.0", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "ending": "destroy", + "outcome": "native-pending-stream-cancellation", + "cancellations": [ + "old" + ], + "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup." + }, + { + "project": "firefox", + "browser": "155.0", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "ending": "source", + "outcome": "native-pending-stream-cancellation", + "cancellations": [ + "old", + "new" + ], + "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup." + }, + { + "project": "firefox", + "browser": "155.0", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "ending": "timeout", + "outcome": "native-pending-stream-cancellation", + "cancellations": [ + "old" + ], + "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup." + }, + { + "project": "webkit", + "browser": "26.6", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "ending": "destroy", + "outcome": "native-pending-stream-cancellation", + "cancellations": [ + "old" + ], + "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup." + }, + { + "project": "webkit", + "browser": "26.6", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "ending": "source", + "outcome": "native-pending-stream-cancellation", + "cancellations": [ + "old", + "new" + ], + "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup." + }, + { + "project": "webkit", + "browser": "26.6", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "ending": "timeout", + "outcome": "native-pending-stream-cancellation", + "cancellations": [ + "old" + ], + "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup." + }, + { + "project": "chromium", + "browser": "153.0.8010.12", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "scenario": "callback", + "outcome": "native-synthetic-raf", + "result": { + "idType": "number", + "calls": [ + { + "owner": "first", + "time": "number", + "mediaTime": 0, + "presentedFrames": 0 + } + ], + "listeners": 0 + }, + "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed." + }, + { + "project": "chromium", + "browser": "153.0.8010.12", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "scenario": "destroy", + "outcome": "native-synthetic-raf", + "result": { + "idType": "number", + "calls": [], + "listeners": 0 + }, + "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed." + }, + { + "project": "chromium", + "browser": "153.0.8010.12", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "scenario": "independent", + "outcome": "native-synthetic-raf", + "result": { + "idType": "number", + "calls": [ + { + "owner": "second" + } + ], + "listeners": 0 + }, + "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed." + }, + { + "project": "firefox", + "browser": "155.0", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "scenario": "callback", + "outcome": "native-synthetic-raf", + "result": { + "idType": "number", + "calls": [ + { + "owner": "first", + "time": "number", + "mediaTime": 0, + "presentedFrames": 0 + } + ], + "listeners": 0 + }, + "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed." + }, + { + "project": "firefox", + "browser": "155.0", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "scenario": "destroy", + "outcome": "native-synthetic-raf", + "result": { + "idType": "number", + "calls": [], + "listeners": 0 + }, + "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed." + }, + { + "project": "firefox", + "browser": "155.0", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "scenario": "independent", + "outcome": "native-synthetic-raf", + "result": { + "idType": "number", + "calls": [ + { + "owner": "second" + } + ], + "listeners": 0 + }, + "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed." + }, + { + "project": "webkit", + "browser": "26.6", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "scenario": "callback", + "outcome": "native-synthetic-raf", + "result": { + "idType": "number", + "calls": [ + { + "owner": "first", + "time": "number", + "mediaTime": 0, + "presentedFrames": 0 + } + ], + "listeners": 0 + }, + "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed." + }, + { + "project": "webkit", + "browser": "26.6", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "scenario": "destroy", + "outcome": "native-synthetic-raf", + "result": { + "idType": "number", + "calls": [], + "listeners": 0 + }, + "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed." + }, + { + "project": "webkit", + "browser": "26.6", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "scenario": "independent", + "outcome": "native-synthetic-raf", + "result": { + "idType": "number", + "calls": [ + { + "owner": "second" + } + ], + "listeners": 0 + }, + "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed." + }, + { + "project": "chromium", + "browser": "153.0.8010.12", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "outcome": "native-mp4-playback-observed", + "scope": "Two actual published proxies with actual core5.4.0; native MP4 pixels/clock or explicitly unsupported Windows WebKit APIs. No candidate, HLS or AV-sync acceptance." + }, + { + "project": "firefox", + "browser": "155.0", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "outcome": "native-mp4-playback-observed", + "scope": "Two actual published proxies with actual core5.4.0; native MP4 pixels/clock or explicitly unsupported Windows WebKit APIs. No candidate, HLS or AV-sync acceptance." + }, + { + "project": "webkit", + "browser": "26.6", + "platform": "win32", + "implementation": "candidate-artifact", + "sha256": "8ac3fb3531f109475adeb0230f155113e6a0210e32c0be08527be4b2772e63a3", + "outcome": "verified-unsupported-capability-control", + "scope": "Two actual published proxies with actual core5.4.0; native MP4 pixels/clock or explicitly unsupported Windows WebKit APIs. No candidate, HLS or AV-sync acceptance." + } + ], + "report": "refactor/.cache/mb04-shim-results/report.json", + "reportSha256": "07856e69bad4f4c33f6a06506a3ca21caa23c5fc0e915a166825e8596a56865f", + "results": "refactor/.cache/mb04-shim-results/results" + }, + "checks": [ + { + "command": "yarn test:mediabunny", + "result": "pass", + "tests": 68, + "log": "refactor/.cache/mb04-shim-tests-final.log" + }, + { + "command": "node --test test/mediabunny-shim.test.js with adba8a3d main", + "result": "expected historical failures", + "passed": 9, + "failed": 3, + "log": "refactor/.cache/mb04-shim-frozen.log" + }, + { + "command": "package strict typecheck and focused eslint --no-fix", + "result": "pass", + "packageStrictProductionModules": 11, + "scope": "Coordinator JS remains behind an explicit declaration boundary" + }, + { + "command": "yarn build artplayer-proxy-mediabunny", + "result": "pass", + "formats": [ + "main", + "legacy", + "esm" + ], + "log": "refactor/.cache/mb04-shim-build.log" + }, + { + "command": "main/legacy shim and load regressions", + "result": "pass", + "eachRun": 32, + "candidateArtifactCasesPerRun": 28, + "frozenControlsPerRun": 4 + }, + { + "command": "four MediaBunny browser specs with built main and ARTPLAYER_MB_BROWSER_CANDIDATE=1", + "result": "pass", + "tests": 39, + "log": "refactor/.cache/mb04-shim-browser.log" + }, + { + "command": "yarn ci:check", + "result": "pass", + "tests": { + "unit": 1074, + "engineering": 14, + "baseline": 141, + "mainTotal": 1229, + "repeatedContractExecutions": 44 + }, + "strictProductionTypeScriptFiles": 301, + "log": "refactor/.cache/mb04-shim-ci.log" + } + ], + "limitations": [ + "PKG-MB-04 is still doing. Readiness/play/seek coordination remains; event silence alone is not evidence that pending engine operations stopped.", + "Coordinator .d.ts is a temporary bridge, not typechecking of its JS implementation.", + "Synthetic RAF is not decoded video frame evidence.", + "Trackless and Windows WebKit capability cases keep their unresolved scope; no release acceptance." + ] +} diff --git a/refactor/changes/2026-09-12-PKG-MB-04-shim-checkpoint.md b/refactor/changes/2026-09-12-PKG-MB-04-shim-checkpoint.md new file mode 100644 index 000000000..9047ae363 --- /dev/null +++ b/refactor/changes/2026-09-12-PKG-MB-04-shim-checkpoint.md @@ -0,0 +1,46 @@ +# PKG-MB-04 检查点：VideoShim 与事件资源 + +任务仍doing；本检查点不是整个主协调器迁移完成。进入04前的实际源码和main归属为 +adba8a3d，冻结于[接续基线](../baselines/mb-coordination-source.json)。 + +VideoShim/EventTarget转为strict TS，抽出shim-values纯值与shim-frames资源模块， +engine-types描述临时协调器边界。MediaBunnyEngine.d.ts仅暂时连接JS协调器；后续必须 +由实际MediaBunnyEngine.ts替代，不能把这份声明当作实现已类型检查。 +生产TS增至11个（全项目301），仍有五个本包JS文件。 + +## 已复现并修正 + +1. destroy后保留的synthetic RAF仍会调用用户回调；现回收所有本实例ID（含0）， + 即使已出队的回调函数晚执行也无副作用。销毁后不再分配新的RAF。 +2. destroy未释放事件监听器，当前emit的后续监听器还能执行；现terminal状态清空Map， + 并阻止当前派发后续回调。正常forEach动态数组语义、重复listener和首次删除保留。 +3. engine.destroy抛错时事件/RAF仍残留；现frame状态先关闭、事件由finally关闭， + 原异常仍向调用方传播；再次destroy不重复调用已失败的清理。 + +Canvas和shim的own/prototype属性顺序、描述符、每次读取重新绑定的方法、原生canvas方法优先， +以及play返回原Promise、pause/load同步void等都有实际旧/新对象对照。 +初始volume不clamp、setter强制转换/取消mute、历史noop setter、synthetic TimeRanges和 +presentedFrames=0继续保留。资源表使用WeakMap，不新增被复制到canvas的内部字段。 + +## 检查范围 + +同一12项shim测试在adba8a3d实际main上9通过/3失败；候选12通过。 +四组正常契约同时比较原冻结1.2.0与候选；本轮共68项包专项，包含原24历史、20加载和12输入。 +新增用例接入test:unit与test:mediabunny。三格式构建，main/legacy各32项加载+shim检查。 +浏览器在实际RAF上检查正常callback、destroy和另一实例不受影响；不把synthetic callback当作解码帧。 +最终验证及产物哈希见[检查点证据](../baselines/mb-shim-checkpoint.json)。 + +## 接续工作 + +立即接着04的主协调器：重复/无轨道就绪、错误后的metadata回写、play拒绝状态恢复、 +pending play遇到pause/destroy、连续seek及resume意图。事件关闭只消除了销毁后的事件出口， +不证明旧Engine没有继续video.start、audio.play或改状态；不能用事件已经静默来掩盖这些未修复问题。 +原MB-LIFE-01/MB-READY-01保持open。后续05/06仍处理底层帧与音频操作。 + +包内ARCHITECTURE.md同步当前地图，回退本检查点commit即可恢复04前shim；不要改动历史冻结输入。 +本地checkpoint不计为任务完成，不推送、不发布。 + +最终完整CI1229项（1074单元+14工程+141基线）通过，另44重复契约；301生产TS。 +main/legacy各32项中28项实际候选断言、4项冻结正常事件对照。39项浏览器无失败/重试/跳过， +其中12播放、9Stream取消、9synthetic RAF、7能力对照及2未关闭trackless就绪。 +全部最终源码/测试/产物及报告哈希已核验，docs/compiled与dist三格式逐字节一致。 diff --git a/refactor/plan.md b/refactor/plan.md index e44763c11..0f5cea3c6 100644 --- a/refactor/plan.md +++ b/refactor/plan.md @@ -4,7 +4,7 @@ 基线：`40fcda6a37d0049d42e49c1e64e70d4fd9ba5f7f`。总任务 222 项，范围 22 个包及工作区/示例。 -状态：todo 115 / doing 7 / blocked 0 / done 100 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。 +状态：todo 114 / doing 8 / blocked 0 / done 100 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。 前置依赖是启动条件；验收是完成条件。任务可以继续拆分，但不能复用或悄悄删除旧 ID。 @@ -332,7 +332,7 @@ | PKG-MB-01 | artplayer-proxy-mediabunny
核对 shim 与媒体契约 | BASE-05 | 全部 option、art.mediabunny、canvas/shim 属性及事件表 | 公开暴露成员和实际发布依赖/资源范围明确；核实 third-party.json 所记录依赖 MPL-2.0 元数据与实际 bundle 的许可/通知范围，不从根 MIT 推断 | H | done | | PKG-MB-02 | artplayer-proxy-mediabunny
建立真实媒体与事件基线 | PKG-MB-01, ENG-05, ENG-08 | MP4/WebM/HLS/Blob/Stream、seek/错误/轨道切换样本 | ready 事件顺序、音画同步、超时和释放可重跑 | H | done | | PKG-MB-03 | artplayer-proxy-mediabunny
整理 input 与加载取消 | PKG-MB-02, CORE-09 | input.js 源检测、输入资源、Range 与取消 | HLS 检测在 input 边界，旧来源类型和超时保持 | H | done | -| PKG-MB-04 | artplayer-proxy-mediabunny
整理 VideoShim/EventTarget/Engine 协调 | PKG-MB-03, CORE-06, CORE-11 | shim 描述符、事件桥、加载状态和操作隔离 | 公开属性/同步异步返回与事件重入顺序保持 | H | todo | +| PKG-MB-04 | artplayer-proxy-mediabunny
整理 VideoShim/EventTarget/Engine 协调 | PKG-MB-03, CORE-06, CORE-11 | shim 描述符、事件桥、加载状态和操作隔离 | 公开属性/同步异步返回与事件重入顺序保持 | H | doing | | PKG-MB-05 | artplayer-proxy-mediabunny
整理视频解码、seek 和帧释放 | PKG-MB-04 | VideoEngine 调度、队列、晚帧处理和资源释放 | 暂停/seek/切源无旧帧覆盖，默认丢帧策略不变 | H | todo | | PKG-MB-06 | artplayer-proxy-mediabunny
整理音频解码、时钟与同步 | PKG-MB-04 | AudioEngine 时钟、缓冲和 AudioContext 归属 | AV sync、倍速、无音轨、静音/音量和暂停恢复通过 | H | todo | | PKG-MB-07 | artplayer-proxy-mediabunny
整理 HLS 配对轨道与 selector | PKG-MB-05, PKG-MB-06, CORE-14 | m3u8 配对、质量/音频选择及拓扑清理 | 实际选择高亮、切到无轨道来源清理、无重复 readiness | H | todo | @@ -523,4 +523,5 @@ - PKG-MB-01: [记录](baselines/mb-release.json) [记录](baselines/mb-surface.json) [记录](baselines/mb-contract.md) [记录](baselines/mb-contract-validation.json) [记录](mb-validation.md) [记录](changes/2026-09-12-PKG-MB-01-contract.md) - PKG-MB-02: [记录](changes/2026-09-12-PKG-MB-02-checkpoint.md) [记录](baselines/mb-media-checkpoint.json) [记录](mb-validation.md) [记录](changes/2026-09-12-PKG-MB-02-baseline.md) [记录](baselines/mb-behavior-validation.json) - PKG-MB-03: [记录](changes/2026-09-12-PKG-MB-03-input.md) [记录](baselines/mb-input-validation.json) +- PKG-MB-04: [记录](baselines/mb-coordination-source.json) [记录](changes/2026-09-12-PKG-MB-04-shim-checkpoint.md) [记录](baselines/mb-shim-checkpoint.json) - PKG-FACTORY-01: [记录](baselines/factory-assignment-gaps.json) [记录](baselines/factory-compatibility-proposals.json) [记录](factory-compatibility-decision.md) [记录](changes/2026-09-12-PKG-FACTORY-01-decision.md) diff --git a/refactor/progress.md b/refactor/progress.md index 2c7fe7789..fb96903b1 100644 --- a/refactor/progress.md +++ b/refactor/progress.md @@ -1,5 +1,17 @@ # 进度与证据 +## 当前检查点：PKG-MB-04 VideoShim、事件与RAF资源 + +新增五个生产TS模块，保持shim/canvas布局和正常事件/Promise/属性契约；修复销毁后的RAF、 +事件监听器和清理异常残留。同一12项shim断言在adba8a3d main上9通过/3失败，候选全通过。 +包专项68项通过；main/legacy各32项（28候选+4冻结正常对照），三格式构建通过。 +39项候选浏览器检查通过：12播放、9原生Stream取消、9synthetic RAF、7能力失败对照、 +2待修复无轨道就绪。完整CI1229项通过，另44重复契约，301生产TS，声明桥未计为JS实现迁移。 +见[检查点](changes/2026-09-12-PKG-MB-04-shim-checkpoint.md)及[证据](baselines/mb-shim-checkpoint.json)。 +MB-04保持doing；立即继续MediaBunnyEngine实际TS与readiness/play/seek协调。事件出口已关闭 +不代表底层晚操作已停止，MB-LIFE-01/MB-READY-01仍open。222项：100 done、8 doing、114 todo。 +本地checkpoint，不推送/发布；Canvas/Ambilight类型决定仍待确认。 + ## 最新完成：PKG-MB-03 输入、Range与加载取消 六个strict TS模块已接入生产，修复切源/销毁/超时后的待加载Input、HEAD及timer资源与陈旧回调。 diff --git a/refactor/risks.json b/refactor/risks.json index f122c4109..5f9473200 100644 --- a/refactor/risks.json +++ b/refactor/risks.json @@ -3648,7 +3648,7 @@ "PKG-MB-07", "PKG-MB-09" ], - "compatibleResolution": "Reproduce pending operations and destroy/source-switch races before migrating each owner; preserve public event and promise behavior while preventing stale resource use. MB-02 now reproduces late load rejection and uncancelled waiting/loadstart timers after destroy in all three historical implementations using a controlled host. Other interleavings and full-core native behavior are not yet verified. Expanded MB-02 baseline reproduces play-after-pause/destroy, rejected-play false state, seek-after-destroy and retained successful-load timeout timers in all three actual historical implementations; Range and active-timeout normal controls remain separate. MB-03 candidate owns pending Input before track selection and cancels load/HEAD/timers on source replacement, timeout and destroy; source/main/legacy regressions pass. Pending play/seek, late decoder work and full readiness coordination remain MB-04/05/06, so this risk stays open.", + "compatibleResolution": "Reproduce pending operations and destroy/source-switch races before migrating each owner; preserve public event and promise behavior while preventing stale resource use. MB-02 now reproduces late load rejection and uncancelled waiting/loadstart timers after destroy in all three historical implementations using a controlled host. Other interleavings and full-core native behavior are not yet verified. Expanded MB-02 baseline reproduces play-after-pause/destroy, rejected-play false state, seek-after-destroy and retained successful-load timeout timers in all three actual historical implementations; Range and active-timeout normal controls remain separate. MB-03 candidate owns pending Input before track selection and cancels load/HEAD/timers on source replacement, timeout and destroy; source/main/legacy regressions pass. Pending play/seek, late decoder work and full readiness coordination remain MB-04/05/06, so this risk stays open. MB-04 shim checkpoint fixes synthetic RAF retention and terminal event-listener cleanup, including engine cleanup exceptions. Closing the event bridge does not prove pending engine operations stopped; coordination remains in progress.", "closureCriteria": "Historical failing interleavings and candidate cancellation/cleanup pass with real media and event evidence, including long playback and track topology.", "status": "open", "evidence": [ @@ -3659,7 +3659,8 @@ "refactor/baselines/mb-media-checkpoint.json", "refactor/changes/2026-09-12-PKG-MB-02-baseline.md", "refactor/baselines/mb-behavior-validation.json", - "refactor/changes/2026-09-12-PKG-MB-03-input.md" + "refactor/changes/2026-09-12-PKG-MB-03-input.md", + "refactor/changes/2026-09-12-PKG-MB-04-shim-checkpoint.md" ] }, { diff --git a/refactor/tasks.json b/refactor/tasks.json index b2debb990..47b441877 100644 --- a/refactor/tasks.json +++ b/refactor/tasks.json @@ -3460,11 +3460,15 @@ "CORE-06", "CORE-11" ], - "status": "todo", + "status": "doing", "risk": "H", "deliverable": "shim 描述符、事件桥、加载状态和操作隔离", "acceptance": "公开属性/同步异步返回与事件重入顺序保持", - "evidence": [] + "evidence": [ + "baselines/mb-coordination-source.json", + "changes/2026-09-12-PKG-MB-04-shim-checkpoint.md", + "baselines/mb-shim-checkpoint.json" + ] }, { "id": "PKG-MB-05", diff --git a/test/browser/mediabunny-shim.spec.js b/test/browser/mediabunny-shim.spec.js new file mode 100644 index 000000000..5bf51c001 --- /dev/null +++ b/test/browser/mediabunny-shim.spec.js @@ -0,0 +1,49 @@ +import { hash } from '../../refactor/scripts/releases.mjs' +import { mbCandidate } from '../helpers/mediabunny.js' +import { expect, test } from './fixtures.js' + +const implementation = await mbCandidate() +for (const scenario of ['callback', 'destroy', 'independent']) { + test(`MediaBunny ${implementation.name}: native synthetic RAF ${scenario}`, async ({ page }, testInfo) => { + await page.goto('/test/player.html?core=published') + await page.addScriptTag({ content: `(() => { const module = { exports: {} }; const exports = module.exports; + ${implementation.code}; window.mbFactory = module.exports.default || module.exports; })();` }) + const result = await page.evaluate(async (scenario) => { + function create() { + const listeners = new Map() + const host = { + constructor: window.Artplayer, + option: { url: '', autoSize: false }, + template: { $player: document.querySelector('.player') }, + on(name, callback) { + const list = listeners.get(name) || [] + list.push(callback) + listeners.set(name, list) + }, + emit(name, ...args) { + for (const callback of listeners.get(name) || []) callback(...args) + }, + } + const canvas = window.mbFactory()(host) + return { host, canvas } + } + const first = create() + const second = scenario === 'independent' ? create() : null + const calls = [] + const id = first.canvas.requestVideoFrameCallback((time, metadata) => calls.push({ owner: 'first', time: typeof time, mediaTime: metadata.mediaTime, presentedFrames: metadata.presentedFrames })) + second?.canvas.requestVideoFrameCallback(() => calls.push({ owner: 'second' })) + if (scenario !== 'callback') { + first.host.emit('destroy') + first.canvas.requestVideoFrameCallback(() => calls.push({ owner: 'after-destroy' })) + } + await new Promise(resolve => requestAnimationFrame(() => requestAnimationFrame(resolve))) + first.host.emit('destroy') + second?.host.emit('destroy') + return { idType: typeof id, calls, listeners: first.canvas.events.listeners.size } + }, scenario) + expect(result.idType).toBe('number') + expect(result.listeners).toBe(0) + expect(result.calls).toEqual(scenario === 'callback' ? [{ owner: 'first', time: 'number', mediaTime: 0, presentedFrames: 0 }] : scenario === 'independent' ? [{ owner: 'second' }] : []) + await testInfo.attach('mediabunny-shim-frames', { contentType: 'application/json', body: JSON.stringify({ implementation: implementation.name, sha256: hash(implementation.code), scenario, result, scope: 'Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed.' }) }) + }) +} diff --git a/test/mediabunny-shim.test.js b/test/mediabunny-shim.test.js new file mode 100644 index 000000000..c767e779a --- /dev/null +++ b/test/mediabunny-shim.test.js @@ -0,0 +1,162 @@ +import assert from 'node:assert/strict' +// eslint-disable-next-line test/no-import-node-test -- Exercise actual proxy instances, including historical event semantics. +import test from 'node:test' +import { mbCandidate, mbEnvironment, mbHistorical } from './helpers/mediabunny.js' + +const candidate = await mbCandidate() +const frozen = (await mbHistorical()).find(item => item.name === 'frozen-workspace') +function environment(implementation = candidate, option = {}) { + const env = mbEnvironment(implementation) + const canvas = env.factory(option)(env.art) + return { ...env, canvas, shim: env.art.mediabunny, events: canvas.events } +} + +test('MediaBunny candidate retains exact shim own/prototype surface, canvas descriptors and bound forwarding', () => { + const old = environment(frozen) + const next = environment() + assert.deepEqual(Object.keys(next.canvas), Object.keys(old.canvas)) + assert.deepEqual(Object.getOwnPropertyNames(next.shim), Object.getOwnPropertyNames(old.shim)) + assert.deepEqual(Object.getOwnPropertyNames(Object.getPrototypeOf(next.shim)), Object.getOwnPropertyNames(Object.getPrototypeOf(old.shim))) + for (const name of Object.keys(next.canvas)) { + const a = Object.getOwnPropertyDescriptor(next.canvas, name) + const b = Object.getOwnPropertyDescriptor(old.canvas, name) + assert.deepEqual([a.enumerable, a.configurable, a.writable, typeof a.get, typeof a.set], [b.enumerable, b.configurable, b.writable, typeof b.get, typeof b.set], name) + } + assert.notEqual(next.canvas.play, next.canvas.play) + assert.throws(() => Reflect.set(next.canvas, 'duration', 3), { name: 'TypeError' }) + assert.equal(next.canvas.getContext('2d'), next.context) + next.canvas.setAttribute('src', 'native-only.mp4') + assert.equal(next.canvas.src, null) + assert.deepEqual(next.nativeCalls.at(-1), ['attribute', 'src', 'native-only.mp4']) +}) + +for (const implementation of [frozen, candidate]) { + test(`MediaBunny ${implementation.name}: event dispatch retains duplicates, first removal, detail identity and live-array mutation`, () => { + const env = environment(implementation) + const calls = [] + const detail = { value: 7 } + const duplicate = (event) => { + assert(event instanceof Event) + assert.equal(event.detail, detail) + calls.push('duplicate') + } + env.events.addEventListener('custom', duplicate) + env.events.addEventListener('custom', duplicate) + assert.equal(env.events.removeEventListener('custom', duplicate), undefined) + env.events.addEventListener('custom', () => { + calls.push('mutate') + env.events.removeEventListener('custom', duplicate) + env.events.addEventListener('custom', () => calls.push('new')) + }) + env.events.addEventListener('custom', () => calls.push('last')) + assert.equal(env.events.emit('custom', detail), undefined) + assert.deepEqual(calls, ['duplicate', 'mutate', 'new']) + }) + + test(`MediaBunny ${implementation.name}: event errors propagate and explicit nested emits preserve ordering`, () => { + const env = environment(implementation) + const calls = [] + env.events.addEventListener('outer', () => { + calls.push('outer') + env.events.emit('inner') + }) + env.events.addEventListener('inner', () => calls.push('inner')) + env.events.addEventListener('outer', () => calls.push('tail')) + env.events.emit('outer') + assert.deepEqual(calls, ['outer', 'inner', 'tail']) + const error = new Error('user callback') + env.events.addEventListener('failure', () => { + throw error + }) + env.events.addEventListener('failure', () => calls.push('unreachable')) + assert.throws(() => env.events.emit('failure'), item => item === error) + assert.equal(calls.includes('unreachable'), false) + }) + + test(`MediaBunny ${implementation.name}: coercion, no-op setters and pseudo ranges keep normal behavior`, () => { + const option = { volume: 2, autoplay: true, loop: true, crossOrigin: 'anonymous', poster: 'first.png' } + const env = environment(implementation, option) + assert.equal(env.canvas.option, option) + assert.equal(env.canvas.volume, 2) + env.canvas.volume = '0.4' + assert.equal(env.canvas.volume, 0.4) + assert.equal(env.canvas.muted, false) + env.canvas.muted = 'yes' + assert.equal(env.canvas.muted, true) + env.canvas.playbackRate = '2' + env.canvas.playbackRate = 0 + assert.equal(env.canvas.playbackRate, 2) + env.canvas.autoplay = false + env.canvas.loop = false + env.canvas.crossOrigin = 'use-credentials' + assert.deepEqual([env.canvas.autoplay, env.canvas.loop, env.canvas.crossOrigin], [true, true, 'anonymous']) + env.canvas.poster = 'next.png' + assert.equal(option.poster, 'next.png') + Object.defineProperty(env.canvas.engine, 'duration', { value: 12 }) + Object.defineProperty(env.canvas.engine, 'currentTime', { value: 3 }) + assert.equal(env.canvas.buffered.end(99), 12) + assert.equal(env.canvas.played.end(-1), 3) + assert.equal(env.canvas.seekable.start(99), 0) + assert.equal(env.canvas.canPlayType('invalid/media'), 'maybe') + }) + + test(`MediaBunny ${implementation.name}: public forwarding retains exact Promise identity and synchronous void methods`, async () => { + const env = environment(implementation) + const calls = [] + const result = Promise.resolve() + env.canvas.engine.play = () => result + env.canvas.engine.pause = () => calls.push('pause') + env.canvas.engine.load = source => calls.push(['load', source]) + env.canvas.engine.seek = time => calls.push(['seek', time]) + assert.equal(env.canvas.play(), result) + assert.equal(env.canvas.pause(), undefined) + env.canvas.src = 'movie.mp4' + assert.equal(env.canvas.load(), undefined) + env.canvas.currentTime = '3.5' + assert.deepEqual(calls, ['pause', ['load', 'movie.mp4'], ['load', 'movie.mp4'], ['seek', 3.5]]) + await result + }) +} + +test('MediaBunny candidate destroy cancels synthetic frame callbacks including handle zero', () => { + const env = environment() + let calls = 0 + const id = env.canvas.requestVideoFrameCallback(() => calls++) + assert.equal(id, 0) + const queued = env.frames.get(id) + env.art.emit('destroy') + assert.equal(env.frames.size, 0) + queued(100) + assert.equal(calls, 0) + env.canvas.requestVideoFrameCallback(() => calls++) + assert.equal(env.frames.size, 0) +}) + +test('MediaBunny candidate teardown stops the current dispatch after a listener destroys the shim', () => { + const env = environment() + const calls = [] + env.events.addEventListener('custom', () => { + calls.push('destroy') + env.shim.destroy() + }) + env.events.addEventListener('custom', () => calls.push('obsolete')) + env.events.emit('custom') + assert.deepEqual(calls, ['destroy']) + assert.equal(env.events.listeners.size, 0) + const cursor = env.emitted.length + env.events.emit('volumechange') + assert.equal(env.emitted.length, cursor) +}) + +test('MediaBunny candidate teardown releases event and frame resources even when engine cleanup throws', () => { + const env = environment() + const failure = new Error('cleanup failed') + env.canvas.requestVideoFrameCallback(() => {}) + env.canvas.engine.destroy = () => { + throw failure + } + assert.throws(() => env.shim.destroy(), error => error === failure) + assert.equal(env.events.listeners.size, 0) + assert.equal(env.frames.size, 0) + assert.doesNotThrow(() => env.shim.destroy()) +})