@zoom/meetingsdk/dist/lib/av/js_sharing_audio_worklet.min.js

Zoom MeetingSDK-Web Client

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Atomics.load(this.sabState,this.STATE_DATA_COUNT)<t*this.QUANTUM_SIZE}shouldAdjustCacheBuffer(){this._counter>0&&this.setCacheSize(this.getCacheSize()+1)}clear(){this.sabState&&(this.sabState[this.STATE_READ_READY]=0,this.sabState[this.STATE_READ_INDEX]=0,this.sabState[this.STATE_WRITE_READY]=0,this.sabState[this.STATE_WRITE_INDEX]=0,this.sabState[this.STATE_DATA_COUNT]=0),this._counter=0}setWriteReady(){this.sabState[this.STATE_WRITE_READY]=this.STATY_READY_YES}isReady(){return this.sabState[this.STATE_WRITE_READY]&&this.sabState[this.STATE_READ_READY]}getDataCount(){return Atomics.load(this.sabState,this.STATE_DATA_COUNT)}write(t){if(void 0===t[0]||t[0].length*this.writeChannelNumb!==this.perFrameLength)return;let e=this.sabState[this.STATE_READ_READY];return this.sabState[this.STATE_WRITE_READY]||(this.sabState[this.STATE_WRITE_READY]=this.STATY_READY_YES,this.sabState[this.STATE_WRITE_INDEX]=0),e?this.supportSpecialOptimization?this.writeSpecial(t):this.writeNormal(t):void 0}writeNormal(t){let e=this.sabState[this.STATE_WRITE_INDEX];for(let s=0;s<this.writeChannelNumb;s++)for(let i=0;t[s]&&i<t[s].length;i++)this.sabBuffer[(e+i*this.writeChannelNumb+s)%this.bufferLen]=t[s][i];e+=this.perFrameLength,e>=this.bufferLen&&(e-=this.bufferLen),this.sabState[this.STATE_WRITE_INDEX]=e,Atomics.add(this.sabState,this.STATE_DATA_COUNT,this.perFrameLength)}writeSpecial(t){let e=this.sabState[this.STATE_WRITE_INDEX];for(let s=0;s<this.writeChannelNumb;s++)for(let i=0;t[s]&&i<t[s].length;i++)this.bufferIndex[e][i*this.writeChannelNumb+s]=t[s][i];e=(e+1)%this.bufferIndex.length,this.sabState[this.STATE_WRITE_INDEX]=e,Atomics.add(this.sabState,this.STATE_DATA_COUNT,this.perFrameLength)}read(){let t=this.sabState[this.STATE_READ_READY],e=this.sabState[this.STATE_WRITE_READY];if(t||(this.sabState[this.STATE_READ_READY]=this.STATY_READY_YES,this.sabState[this.STATE_READ_INDEX]=0),!e)return null;let s=this.supportSpecialOptimization?this.readSpecial():this.readNormal();return null===s?this.shouldAdjustCacheBuffer():this._counter++,s}readNormal(){let t=this.sabState[this.STATE_READ_INDEX],e=Atomics.load(this.sabState,this.STATE_DATA_COUNT);if(e<this.perFrameLength)return null;if(e>this.bufferLen){let s=Math.ceil((e-this.bufferLen)/this.perFrameLength)+1;t=(s*this.perFrameLength+t)%this.bufferLen,Atomics.sub(this.sabState,this.STATE_DATA_COUNT,s*this.perFrameLength)}let s=null;if(this.bufferLen-t>=this.perFrameLength)s=this.sabBuffer.subarray(t,t+this.perFrameLength);else{let e=this.sabBuffer.subarray(t),i=this.sabBuffer.subarray(0,this.perFrameLength-e.length);s=this.placeBuffer,s.set(e),s.set(i,e.length)}return t+=this.perFrameLength,t>=this.bufferLen&&(t-=this.bufferLen),this.sabState[this.STATE_READ_INDEX]=t,Atomics.sub(this.sabState,this.STATE_DATA_COUNT,this.perFrameLength),s}readSpecial(){let t=this.sabState[this.STATE_READ_INDEX],e=Atomics.load(this.sabState,this.STATE_DATA_COUNT);if(e<this.perFrameLength)return null;if(e>this.bufferLen){let s=Math.ceil((e-this.bufferLen)/this.perFrameLength)+1;t=(s+t)%this.bufferIndex.length,Atomics.sub(this.sabState,this.STATE_DATA_COUNT,s*this.perFrameLength)}let s=this.bufferIndex[t];return t=(t+1)%this.bufferIndex.length,this.sabState[this.STATE_READ_INDEX]=t,Atomics.sub(this.sabState,this.STATE_DATA_COUNT,this.perFrameLength),s}}class h{constructor(t,e){let s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:1;this.rframes=t,this.wframes=e,this.writeChannelNumb=s,this.cap=this.lcm(t,e),this.buffer=new Float32Array(this.cap),this.remain=0,this.woffset=0,this.roffset=0}gcd(t,e){return 0===e?t:this.gcd(e,t%e)}lcm(t,e){return t/this.gcd(t,e)*e}push(t){if(null==t[0]||t[0].length*this.writeChannelNumb==this.wframes){for(let e=0;e<this.writeChannelNumb;e++)for(let s=0;s<t[0].length;s++)this.buffer[(this.woffset+s*this.writeChannelNumb+e)%this.cap]=t[e]?t[e][s]:t[0][s];this.woffset+=this.wframes,this.remain+=this.wframes,this.woffset>=this.cap&&(this.woffset=this.woffset%this.cap)}else{var e;console.error("[Audio] critical error in AudioWorklet: data.length:",t.length,"this.woffset:",this.woffset,"this.cap:",this.cap),_workletPrinter&&_workletPrinter.error("critical error in AudioWorklet: ".concat(null===(e=t[0])||void 0===e?void 0:e.length," ").concat(his.writeChannelNumb," ").concat(this.wframes))}}read(){if(!this.hasData())return null;let t=this.buffer.subarray(this.roffset,this.roffset+this.rframes);return this.remain-=this.rframes,this.roffset+=this.rframes,this.roffset>=this.cap&&(this.roffset=this.roffset%this.cap),t}hasData(){return this.remain>=this.rframes}clear(){this.buffer.fill(0),this.remain=0,this.woffset=0,this.roffset=0}}},6:function(t,e,s){"use strict";s.d(e,"a",(function(){return i}));class i{constructor(){this.cacheSize=0,this.sameCacheSizeCounter=0}shouldSendCacheSize(t){return t===this.cacheSize&&this.sameCacheSizeCounter++,(this.cacheSize!==t||200===this.sameCacheSizeCounter)&&(this.sameCacheSizeCounter=0,this.cacheSize=t,!0)}}},9:function(t,e,s){"use strict";s.r(e);var i=s(4);var r=!1,h=1;const a="undefined"!=typeof SharedArrayBuffer;class n extends AudioWorkletProcessor{static get parameterDescriptors(){return[{name:"pcm",defaultValue:1}]}constructor(t){super(),this.port.onmessage=this.handleMessage.bind(this),this.isPlaying=!1,this.isCapturing=!1,this.audioEncodePort=null,t&&t.processorOptions&&t.processorOptions.sharingEncodeChannelsNum&&(h=t.processorOptions.sharingEncodeChannelsNum)}handleMessage(t){const{status:e,data:s}=t.data;switch(e){case"StartCaptureAudio":this.isCapturing=!0;break;case"sampleRate":this.sampleRate_=s;break;case"encodeAudioPort":this.audioEncodePort&&this.audioEncodePort.close(),this.audioEncodePort=t.ports[0];break;case"stopWorklet":r=!0;break;default:a?this.handleMessageForSAB(t):console.warn("unhanle commands in audioworklet",e)}}handleMessageForSAB(t){const{status:e,data:s}=t.data;switch(e){case"sharedBuffer":s&&(this.g_sharedbuffer=s),this.g_sharedbuffer&&(this.sharingSAB=new i.b(this.g_sharedbuffer.sharingInputState,this.g_sharedbuffer.sharingInputBuffer,128*h,h));break;default:console.warn("unhanle commands in audioworklet",e)}}process(t,e,s){return!r&&(!!a&&this.SABProcess(t,s))}inputData(t){if(!this.sharingSAB)return!0;this.sharingSAB.write(t[0]),this.audioEncodePort.postMessage({command:2,buffer:!1})}SABProcess(t,e){let s=t[0];return!this.g_sharedbuffer||(s[0]&&this.isCapturing&&this.inputData(t),!0)}}registerProcessor("zoomSharingAudioWorklet",n)}});
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