2 lines
4.1 KiB
JavaScript
2 lines
4.1 KiB
JavaScript
!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e="undefined"!=typeof globalThis?globalThis:e||self).RecorderManager=t()}(this,(function(){"use strict";function e(e,t,r,o){return new(r||(r=Promise))((function(n,a){function i(e){try{u(o.next(e))}catch(e){a(e)}}function s(e){try{u(o.throw(e))}catch(e){a(e)}}function u(e){var t;e.done?n(e.value):(t=e.value,t instanceof r?t:new r((function(e){e(t)}))).then(i,s)}u((o=o.apply(e,t||[])).next())}))}function t(e,t){var r,o,n,a,i={label:0,sent:function(){if(1&n[0])throw n[1];return n[1]},trys:[],ops:[]};return a={next:s(0),throw:s(1),return:s(2)},"function"==typeof Symbol&&(a[Symbol.iterator]=function(){return this}),a;function s(s){return function(u){return function(s){if(r)throw new TypeError("Generator is already executing.");for(;a&&(a=0,s[0]&&(i=0)),i;)try{if(r=1,o&&(n=2&s[0]?o.return:s[0]?o.throw||((n=o.return)&&n.call(o),0):o.next)&&!(n=n.call(o,s[1])).done)return n;switch(o=0,n&&(s=[2&s[0],n.value]),s[0]){case 0:case 1:n=s;break;case 4:return i.label++,{value:s[1],done:!1};case 5:i.label++,o=s[1],s=[0];continue;case 7:s=i.ops.pop(),i.trys.pop();continue;default:if(!(n=i.trys,(n=n.length>0&&n[n.length-1])||6!==s[0]&&2!==s[0])){i=0;continue}if(3===s[0]&&(!n||s[1]>n[0]&&s[1]<n[3])){i.label=s[1];break}if(6===s[0]&&i.label<n[1]){i.label=n[1],n=s;break}if(n&&i.label<n[2]){i.label=n[2],i.ops.push(s);break}n[2]&&i.ops.pop(),i.trys.pop();continue}s=t.call(e,i)}catch(e){s=[6,e],o=0}finally{r=n=0}if(5&s[0])throw s[1];return{value:s[0]?s[1]:void 0,done:!0}}([s,u])}}}function r(){var e,t=navigator,r=t.getUserMedia||t.webkitGetUserMedia||t.mozGetUserMedia;return(null===(e=t.mediaDevices)||void 0===e?void 0:e.getUserMedia)?t.mediaDevices.getUserMedia({audio:!0,video:!1}):r?new Promise((function(e,t){r.call(navigator,{audio:!0,video:!1},(function(t){e(t)}),(function(e){t(e)}))})):Promise.reject(new Error("不支持录音"))}var o;function n(r,n){return e(this,void 0,void 0,(function(){var e;return t(this,(function(t){switch(t.label){case 0:return[3,2];case 1:return t.sent(),[2,new AudioWorkletNode(r,"processor-worklet")];case 2:return(e=o)?[3,4]:[4,new Worker("".concat(n,"/processor.worker.js"))];case 3:e=t.sent(),t.label=4;case 4:return[2,{port:o=e}]}}))}))}return function(){function o(e){this.processorPath=e,this.audioBuffers=[]}return o.prototype.start=function(o){var a,i=o.sampleRate,s=o.frameSize,u=o.arrayBufferType;return e(this,void 0,void 0,(function(){var e,o,c,l,f,d,p;return t(this,(function(t){switch(t.label){case 0:return t.trys.push([0,3,,4]),(e=this).audioBuffers=[],[4,r()];case 1:return o=t.sent(),this.audioTracks=o.getAudioTracks(),c=function(e,t){var r;try{(r=new(window.AudioContext||window.webkitAudioContext)({sampleRate:t})).createMediaStreamSource(e)}catch(t){null==r||r.close(),(r=new(window.AudioContext||window.webkitAudioContext)).createMediaStreamSource(e)}return r}(o,i),this.audioContext=c,l=c.createMediaStreamSource(o),[4,n(c,this.processorPath)];case 2:return f=t.sent(),this.audioWorklet=f,f.port.postMessage({type:"init",data:{frameSize:s,toSampleRate:i||c.sampleRate,fromSampleRate:c.sampleRate,arrayBufferType:u||"short16"}}),f.port.onmessage=function(t){var r=t.data,o=r.frameBuffer,n=r.isLastFrame;if(s&&e.onFrameRecorded)if(null==o?void 0:o.byteLength)for(var a=0;a<o.byteLength;)e.onFrameRecorded({isLastFrame:n&&a+s>=o.byteLength,frameBuffer:t.data.frameBuffer.slice(a,a+s)}),a+=s;else e.onFrameRecorded(t.data);e.onStop&&(o&&e.audioBuffers.push(o),n&&e.onStop(e.audioBuffers))},(d=c.createScriptProcessor(0,1,1)).onaudioprocess=function(e){f.port.postMessage({type:"message",data:e.inputBuffer.getChannelData(0)})},l.connect(d),d.connect(c.destination),c.resume(),null===(a=this.onStart)||void 0===a||a.call(this),[3,4];case 3:return p=t.sent(),console.error(p),[3,4];case 4:return[2]}}))}))},o.prototype.stop=function(){var e,t,r,o;null===(e=this.audioWorklet)||void 0===e||e.port.postMessage({type:"stop"}),null===(t=this.audioTracks)||void 0===t||t[0].stop(),"running"===(null===(r=this.audioContext)||void 0===r?void 0:r.state)&&(null===(o=this.audioContext)||void 0===o||o.close())},o}()}));
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