telegram-tt/dist/161.286d0207d962142ad548.js

(self.webpackChunktelegram_t=self.webpackChunktelegram_t||[]).push([[161],{1161:function(e){"undefined"!=typeof self&&self,e.exports=function(e){var t={};function o(n){if(t[n])return t[n].exports;var i=t[n]={i:n,l:!1,exports:{}};return e[n].call(i.exports,i,i.exports,o),i.l=!0,i.exports}return o.m=e,o.c=t,o.d=function(e,t,n){o.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:n})},o.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},o.t=function(e,t){if(1&t&&(e=o(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var n=Object.create(null);if(o.r(n),Object.defineProperty(n,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var i in e)o.d(n,i,function(t){return e[t]}.bind(null,i));return n},o.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return o.d(t,"a",t),t},o.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},o.p="",o(o.s=0)}([function(e,t,o){"use strict";(function(t){var o=t.AudioContext||t.webkitAudioContext,n=function e(){var t=this,o=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};if(!e.isRecordingSupported())throw new Error("Recording is not supported in this browser");this.state="inactive",this.config=Object.assign({bufferLength:4096,encoderApplication:2049,encoderFrameSize:20,encoderPath:"encoderWorker.min.js",encoderSampleRate:48e3,maxFramesPerPage:40,mediaTrackConstraints:!0,monitorGain:0,numberOfChannels:1,recordingGain:1,resampleQuality:3,streamPages:!1,wavBitDepth:16,sourceNode:{context:null}},o),this.encodedSamplePosition=0,this.initAudioContext(),this.initialize=this.initWorklet().then((function(){return t.initEncoder()}))};n.isRecordingSupported=function(){var e=t.navigator&&t.navigator.mediaDevices&&t.navigator.mediaDevices.getUserMedia;return o&&e&&t.WebAssembly},n.version="8.0.3",n.prototype.clearStream=function(){this.stream&&(this.stream.getTracks?this.stream.getTracks().forEach((function(e){return e.stop()})):this.stream.stop())},n.prototype.close=function(){return this.monitorGainNode.disconnect(),this.recordingGainNode.disconnect(),this.sourceNode&&this.sourceNode.disconnect(),this.clearStream(),this.encoder&&(this.encoderNode.disconnect(),this.encoder.postMessage({command:"close"})),this.config.sourceNode.context?Promise.resolve():this.audioContext.close()},n.prototype.encodeBuffers=function(e){if("recording"===this.state){for(var t=[],o=0;o<e.numberOfChannels;o++)t[o]=e.getChannelData(o);this.encoder.postMessage({command:"encode",buffers:t})}},n.prototype.initAudioContext=function(){this.audioContext=this.config.sourceNode.context?this.config.sourceNode.context:new o,this.monitorGainNode=this.audioContext.createGain(),this.setMonitorGain(this.config.monitorGain),this.recordingGainNode=this.audioContext.createGain(),this.setRecordingGain(this.config.recordingGain)},n.prototype.initEncoder=function(){var e=this;this.audioContext.audioWorklet?(this.encoderNode=new AudioWorkletNode(this.audioContext,"encoder-worklet",{numberOfOutputs:0}),this.encoder=this.encoderNode.port):(console.log("audioWorklet support not detected. Falling back to scriptProcessor"),this.encodeBuffers=function(){return delete e.encodeBuffers},this.encoderNode=this.audioContext.createScriptProcessor(this.config.bufferLength,this.config.numberOfChannels,this.config.numberOfChannels),this.encoderNode.onaudioprocess=function(t){var o=t.inputBuffer;return e.encodeBuffers(o)},this.encoderNode.connect(this.audioContext.destination),this.encoder=new t.Worker(this.config.encoderPath))},n.prototype.initSourceNode=function(){var e=this;return this.config.sourceNode.context?(this.sourceNode=this.config.sourceNode,Promise.resolve()):t.navigator.mediaDevices.getUserMedia({audio:this.config.mediaTrackConstraints}).then((function(t){e.stream=t,e.sourceNode=e.audioContext.createMediaStreamSource(t)}))},n.prototype.initWorker=function(){var e=this,t=(this.config.streamPages?this.streamPage:this.storePage).bind(this);return this.recordedPages=[],this.totalLength=0,new Promise((function(o){e.encoder.addEventListener("message",(function n(i){var r=i.data;switch(r.message){case"ready":o();break;case"page":e.encodedSamplePosition=r.samplePosition,t(r.page);break;case"done":e.encoder.removeEventListener("message",n),e.finish()}})),e.encoder.start&&e.encoder.start();var n=e.config,i=(n.sourceNode,function(e,t){if(null==e)return{};var o,n,i=function(e,t){if(null==e)return{};var o,n,i={},r=Object.keys(e);for(n=0;n<r.length;n++)o=r[n],t.indexOf(o)>=0||(i[o]=e[o]);return i}(e,t);if(Object.getOwnPropertySymbols){var r=Object.getOwnPropertySymbols(e);for(n=0;n<r.length;n++)o=r[n],t.indexOf(o)>=0||Object.prototype.propertyIsEnumerable.call(e,o)&&(i[o]=e[o])}return i}(n,["sourceNode"]));e.encoder.postMessage(Object.assign({command:"init",originalSampleRate:e.audioContext.sampleRate,wavSampleRate:e.audioContext.sampleRate},i))}))},n.prototype.initWorklet=function(){return this.audioContext.audioWorklet?this.audioContext.audioWorklet.addModule(this.config.encoderPath):Promise.resolve()},n.prototype.pause=function(e){var t=this;if("recording"===this.state)return this.state="paused",this.recordingGainNode.disconnect(),e&&this.config.streamPages?new Promise((function(e){t.encoder.addEventListener("message",(function o(n){"flushed"===n.data.message&&(t.encoder.removeEventListener("message",o),t.onpause(),e())})),t.encoder.start&&t.encoder.start(),t.encoder.postMessage({command:"flush"})})):(this.onpause(),Promise.resolve())},n.prototype.resume=function(){"paused"===this.state&&(this.state="recording",this.recordingGainNode.connect(this.encoderNode),this.onresume())},n.prototype.setRecordingGain=function(e){this.config.recordingGain=e,this.recordingGainNode&&this.audioContext&&this.recordingGainNode.gain.setTargetAtTime(e,this.audioContext.currentTime,.01)},n.prototype.setMonitorGain=function(e){this.config.monitorGain=e,this.monitorGainNode&&this.audioContext&&this.monitorGainNode.gain.setTargetAtTime(e,this.audioContext.currentTime,.01)},n.prototype.start=function(){var e=this;return"inactive"===this.state?(this.state="loading",this.encodedSamplePosition=0,this.audioContext.resume().then((function(){return e.initialize})).then((function(){return Promise.all([e.initSourceNode(),e.initWorker()])})).then((function(){e.state="recording",e.encoder.postMessage({command:"getHeaderPages"}),e.sourceNode.connect(e.monitorGainNode),e.sourceNode.connect(e.recordingGainNode),e.monitorGainNode.connect(e.audioContext.destination),e.recordingGainNode.connect(e.encoderNode),e.onstart()})).catch((function(t){throw e.state="inactive",t}))):Promise.resolve()},n.prototype.stop=function(){var e=this;return"paused"===this.state||"recording"===this.state?(this.state="inactive",this.recordingGainNode.connect(this.encoderNode),this.monitorGainNode.disconnect(),this.clearStream(),new Promise((function(t){e.encoder.addEventListener("message",(function o(n){"done"===n.data.message&&(e.encoder.removeEventListener("message",o),t())})),e.encoder.start&&e.encoder.start(),e.encoder.postMessage({command:"done"})}))):Promise.resolve()},n.prototype.storePage=function(e){this.recordedPages.push(e),this.totalLength+=e.length},n.prototype.streamPage=function(e){this.ondataavailable(e)},n.prototype.finish=function(){if(!this.config.streamPages){var e=new Uint8Array(this.totalLength);this.recordedPages.reduce((function(t,o){return e.set(o,t),t+o.length}),0),this.ondataavailable(e)}this.onstop()},n.prototype.ondataavailable=function(){},n.prototype.onpause=function(){},n.prototype.onresume=function(){},n.prototype.onstart=function(){},n.prototype.onstop=function(){},e.exports=n}).call(this,o(1))},function(e,t){var o;o=function(){return this}();try{o=o||new Function("return this")()}catch(e){"object"==typeof window&&(o=window)}e.exports=o}])}}]);
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