@vonage/ml-transformers/dist/ml-transformers.umd.js

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t=document.createElement("canvas"),n=t.getContext("2d",{desynchronized:!0}),i=t.captureStream().getVideoTracks()[0];return i.writable=new WritableStream({write(o){t.width=o.displayWidth,t.height=o.displayHeight,n.drawImage(o,0,0,t.width,t.height),o.close(),typeof i.requestFrame=="function"&&i.requestFrame()}}),i}else if(e=="audio"){const t=new AudioContext,n=t.createMediaStreamDestination(),[i]=n.stream.getAudioTracks();return i.writable=new WritableStream({async start(o){this.arrays=[];function s(){registerProcessor("mstg-shim",class extends AudioWorkletProcessor{constructor(){super(),this.arrays=[],this.arrayOffset=0,this.port.onmessage=({data:a})=>this.arrays.push(a),this.emptyArray=new Float32Array(0)}process(a,[[c]]){for(let u=0;u<c.length;u++)(!this.array||this.arrayOffset>=this.array.length)&&(this.array=this.arrays.shift()||this.emptyArray,this.arrayOffset=0),c[u]=this.array[this.arrayOffset++]||0;return!0}})}return await t.audioWorklet.addModule(`data:text/javascript,(${s.toString()})()`),this.node=new AudioWorkletNode(t,"mstg-shim"),this.node.connect(n),i},write(o){const s=new Float32Array(o.numberOfFrames*o.numberOfChannels);o.copyTo(s,{planeIndex:0}),this.node.port.postMessage(s,[s.buffer]),o.close()}}),i}}}function aa(){return self.MediaStreamTrackGenerator?self.MediaStreamTrackGenerator:sa}class ca{constructor(e){const t=e.track??e;t.kind=="video"?this.readable=new ReadableStream({async start(n){t.addEventListener("ended",()=>{try{n.close()}catch{}},{once:!0}),this.video=document.createElement("video"),this.video.setAttribute("playsinline",""),this.video.srcObject=new MediaStream([t]),await Promise.all([this.video.play(),new Promise(i=>this.video.onloadedmetadata=i)]),this.track=t,this.canvas=new OffscreenCanvas(this.video.videoWidth,this.video.videoHeight),this.ctx=this.canvas.getContext("2d",{desynchronized:!0}),this.t1=performance.now()},async pull(n){if(t.readyState=="ended"){try{n.close()}catch{}return}const i=t.getSettings().frameRate||30;for(;performance.now()-this.t1<1e3/i;)if(await new Promise(o=>requestAnimationFrame(o)),t.readyState=="ended"){try{n.close()}catch{}return}this.canvas.width=this.video.videoWidth,this.canvas.height=this.video.videoHeight,this.t1=performance.now(),this.ctx.drawImage(this.video,0,0),n.enqueue(new VideoFrame(this.canvas,{timestamp:this.t1}))}}):t.kind=="audio"&&(this.readable=new ReadableStream({async start(n){t.addEventListener("ended",()=>{try{n.close()}catch{}},{once:!0}),this.ac=new AudioContext,this.arrays=[];function i(){registerProcessor("mstp-shim",class extends AudioWorkletProcessor{process(o){return this.port.postMessage(o),!0}})}await this.ac.audioWorklet.addModule(`data:text/javascript,(${i.toString()})()`),this.node=new AudioWorkletNode(this.ac,"mstp-shim"),this.ac.createMediaStreamSource(new MediaStream([t])).connect(this.node),this.node.port.addEventListener("message",({data:o})=>o[0][0]&&this.arrays.push(o))},async pull(n){if(t.readyState=="ended"){try{n.close()}catch{}return}for(;!this.arrays.length;)if(await new Promise(s=>this.node.port.onmessage=s),t.readyState=="ended"){try{n.close()}catch{}return}const[i]=this.arrays.shift(),o=new Float32Array(i.reduce((s,a)=>s+a.length,0));i.reduce((s,a)=>(o.set(a,s),s+a.length),0),n.enqueue(new AudioData({format:"f32-planar",sampleRate:this.ac.sampleRate,numberOfFrames:i[0].length,numberOfChannels:i.length,timestamp:this.ac.currentTime*1e6|0,data:o,transfer:[o.buffer]}))}}))}}function ua(){return self.MediaStreamTrackProcessor?self.MediaStreamTrackProcessor:ca}class la{constructor(){this.processor_=null,this.generator_=null}init(e){return new Promise((t,n)=>{try{const i=ua();this.processor_=new i(e)}catch(i){console.log(`[InsertableStreamHelper] MediaStreamTrackProcessor failed: ${i}`),n(i)}try{const i=aa();e.kind==="audio"?this.generator_=new i({kind:"audio"}):e.kind==="video"?this.generator_=new i({kind:"video"}):n("kind not supported")}catch(i){console.log(`[InsertableStreamHelper] MediaStreamTrackGenerator failed: ${i}`),n(i)}t()})}getReadable(){return this.processor_.readable}getWriteable(){return this.generator_.writable}getProccesorTrack(){return this.generator_}}class fa{constructor(e){this.mediaProcessor_=e}async setTrack(e){if(!(this.mediaProcessor_ instanceof ci)&&await Jn()){if(e.kind==="audio")throw Error("Cannot process audio tracks inside a web worker when passing a track to transform");return await this.mediaProcessor_.transform(e)}if(Kn()){const t=new la;return await t.init(e),await this.mediaProcessor_.transform(t.getReadable(),t.getWriteable()),t.getProccesorTrack()}throw Error("MediaStreamTrack API for Insertable Streams of Media is not supported")}destroy(){return new Promise((e,t)=>{this.mediaProcessor_?this.mediaProcessor_.destroy().then(()=>{e()}).catch(n=>{t(n)}):t("no processor")})}}var rt=(r=>(r.Low="Low",r.High="High",r))(rt||{}),ui=(r=>(r.BackgroundBlur="BackgroundBlur",r.VirtualBackground="VirtualBackground",r.VideoBackground="VideoBackground",r.SilhouetteBlur="SilhouetteBlur",r))(ui||{}),$t=(r=>(r.FAST="FAST",r.PRECISE="PRECISE",r))($t||{}),nt=(r=>(r.CANVAS="CANVAS",r.WEBGL="WEBGL",r))(nt||{});const da=async()=>WebAssembly.validate(new Uint8Array([0,97,115,109,1,0,0,0,1,5,1,96,0,1,123,3,2,1,0,10,10,1,8,0,65,0,253,15,253,98,11]));async function ha(){const{wasm:r,insertableStreams:e,simd:t,webgl:n}=await li();if(!r.supported)throw r.message;if(!e.supported)throw e.message;if(!t.supported)throw t.message;if(!n.supported)throw n.message}async function li(){const r={wasm:{supported:typeof WebAssembly=="object"&&typeof WebAssembly.instantiate=="function",message:"Your browser does not support WebAssembly features."},simd:{supported:await da(),message:"Your browser does not support simd features."},insertableStreams:{supported:!0},gpu:{message:"Your browser does not support gpu features.",supported:!0},webgl:ma(),performance:fi()};try{await As()}catch(e){r.insertableStreams.supported=!1,r.insertableStreams.message=e}return r}function ma(){if(!OffscreenCanvas)return{supported:!1,message:"Your browser does not support offscreen canvas"};const e=new OffscreenCanvas(0,0).getContext("webgl2");if(e){const t=e?.getExtension("WEBGL_lose_context");t&&t.loseContext()}else return{supported:!1,message:"Your browser does not support webgl 2"};return{supported:!0}}function fi(){const e=new OffscreenCanvas(0,0).getContext("webgl2",{failIfMajorPerformanceCaveat:!0});if(e){const t=e?.getExtension("WEBGL_lose_context");t&&t.loseContext()}else return{supported:!1,message:"Your hardware does not perform good enough to run the library efficiently"};return{supported:!0}}const ie=new WeakMap,we=new WeakMap,K=new WeakMap,Wt=Symbol("anyProducer"),di=Promise.resolve(),Gt=Symbol("listenerAdded"),jt=Symbol("listenerRemoved");let Vt=!1,$r=!1;const Ht=r=>typeof r=="string"||typeof r=="symbol"||typeof r=="number";function Ue(r){if(!Ht(r))throw new TypeError("`eventName` must be a string, symbol, or number")}function Yt(r){if(typeof r!="function")throw new TypeError("listener must be a function")}function Ne(r,e){const t=we.get(r);if(t.has(e))return t.get(e)}function it(r,e){const t=Ht(e)?e:Wt,n=K.get(r);if(n.has(t))return n.get(t)}function hi(r,e,t){const n=K.get(r);if(n.has(e))for(const i of n.get(e))i.enqueue(t);if(n.has(Wt)){const i=Promise.all([e,t]);for(const o of n.get(Wt))o.enqueue(i)}}function mi(r,e){e=Array.isArray(e)?e:[e];let t=!1,n=()=>{},i=[];const o={enqueue(s){i.push(s),n()},finish(){t=!0,n()}};for(const s of e){let a=it(r,s);a||(a=new Set,K.get(r).set(s,a)),a.add(o)}return{async next(){return i?i.length===0?t?(i=void 0,this.next()):(await new 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$n}),this[e]}Object.defineProperty(n.prototype,e,{enumerable:!1,get:i});const o=s=>function(...a){return this[e][s](...a)};for(const s of t)Object.defineProperty(n.prototype,s,{enumerable:!1,value:o(s)});return n}}static get isDebugEnabled(){if(typeof globalThis.process?.env!="object")return $r;const{env:e}=globalThis.process??{env:{}};return e.DEBUG==="emittery"||e.DEBUG==="*"||$r}static set isDebugEnabled(e){$r=e}constructor(e={}){ie.set(this,new Set),we.set(this,new Map),K.set(this,new Map),K.get(this).set(Wt,new Set),this.debug=e.debug??{},this.debug.enabled===void 0&&(this.debug.enabled=!1),this.debug.logger||(this.debug.logger=(t,n,i,o)=>{try{o=JSON.stringify(o)}catch{o=`Object with the following keys failed to stringify: ${Object.keys(o).join(",")}`}(typeof i=="symbol"||typeof i=="number")&&(i=i.toString());const s=new Date,a=`${s.getHours()}:${s.getMinutes()}:${s.getSeconds()}.${s.getMilliseconds()}`;console.log(`[${a}][emittery:${t}][${n}] Event Name: ${i}
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