wavesurfer.js/dist/plugins/record.min.js

Audio waveform player

!function(i,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):((i="undefined"!=typeof globalThis?globalThis:i||self).WaveSurfer=i.WaveSurfer||{},i.WaveSurfer.Record=t())}(this,(function(){"use strict";function i(i,t,e,s){return new(e||(e=Promise))((function(o,r){function n(i){try{d(s.next(i))}catch(i){r(i)}}function a(i){try{d(s.throw(i))}catch(i){r(i)}}function d(i){var t;i.done?o(i.value):(t=i.value,t instanceof e?t:new e((function(i){i(t)}))).then(n,a)}d((s=s.apply(i,t||[])).next())}))}"function"==typeof SuppressedError&&SuppressedError;class t{constructor(){this.listeners={}}on(i,t,e){if(this.listeners[i]||(this.listeners[i]=new Set),null==e?void 0:e.once){const e=(...s)=>{this.un(i,e),t(...s)};return this.listeners[i].add(e),()=>this.un(i,e)}return this.listeners[i].add(t),()=>this.un(i,t)}un(i,t){var e;null===(e=this.listeners[i])||void 0===e||e.delete(t)}once(i,t){return this.on(i,t,{once:!0})}unAll(){this.listeners={}}emit(i,...t){this.listeners[i]&&this.listeners[i].forEach((i=>i(...t)))}}class e extends t{constructor(i){super(),this.subscriptions=[],this.isDestroyed=!1,this.options=i}onInit(){}_init(i){this.isDestroyed&&(this.subscriptions=[],this.isDestroyed=!1),this.wavesurfer=i,this.onInit()}destroy(){this.emit("destroy"),this.subscriptions.forEach((i=>i())),this.subscriptions=[],this.isDestroyed=!0,this.wavesurfer=void 0}}class s extends t{constructor(){super(...arguments),this.animationFrameId=null,this.isRunning=!1}start(){if(this.isRunning)return;this.isRunning=!0;const i=()=>{this.isRunning&&(this.emit("tick"),this.animationFrameId=requestAnimationFrame(i))};i()}stop(){this.isRunning=!1,null!==this.animationFrameId&&(cancelAnimationFrame(this.animationFrameId),this.animationFrameId=null)}destroy(){this.stop()}}const o=100,r=["audio/webm","audio/wav","audio/mpeg","audio/mp4","audio/mp3"];class n extends e{constructor(i){var t,e,o,r,n,a;super(Object.assign(Object.assign({},i),{audioBitsPerSecond:null!==(t=i.audioBitsPerSecond)&&void 0!==t?t:128e3,scrollingWaveform:null!==(e=i.scrollingWaveform)&&void 0!==e&&e,scrollingWaveformWindow:null!==(o=i.scrollingWaveformWindow)&&void 0!==o?o:5,continuousWaveform:null!==(r=i.continuousWaveform)&&void 0!==r&&r,renderRecordedAudio:null===(n=i.renderRecordedAudio)||void 0===n||n,mediaRecorderTimeslice:null!==(a=i.mediaRecorderTimeslice)&&void 0!==a?a:void 0})),this.stream=null,this.mediaRecorder=null,this.dataWindow=null,this.isWaveformPaused=!1,this.lastStartTime=0,this.lastDuration=0,this.duration=0,this.micStream=null,this.recordedBlobUrl=null,this.timer=new s,this.subscriptions.push(this.timer.on("tick",(()=>{const i=performance.now()-this.lastStartTime;this.duration=this.isPaused()?this.duration:this.lastDuration+i,this.emit("record-progress",this.duration)})))}static create(i){return new n(i||{})}renderMicStream(i){var t;const e=new AudioContext,s=e.createMediaStreamSource(i),r=e.createAnalyser();s.connect(r),(this.options.continuousWaveform||this.options.scrollingWaveform)&&(r.fftSize=32);const n=r.frequencyBinCount,a=new Float32Array(n);let d=0;this.wavesurfer&&(null!==(t=this.originalOptions)&&void 0!==t||(this.originalOptions=Object.assign({},this.wavesurfer.options)),this.wavesurfer.options.interact=!1,this.options.scrollingWaveform&&(this.wavesurfer.options.cursorWidth=0,this.wavesurfer.options.normalize=!0,this.wavesurfer.options.maxPeak=1));const h=setInterval((()=>{var i,t,e,s;if(!this.isWaveformPaused){if(r.getFloatTimeDomainData(a),this.options.scrollingWaveform){const i=Math.floor((this.options.scrollingWaveformWindow||0)*o);let t=0;for(let i=0;i<n;i++){const e=Math.abs(a[i]);e>t&&(t=e)}this.dataWindow||(this.dataWindow=new Float32Array(i));const e=new Float32Array(i);if(this.dataWindow&&this.dataWindow.length>0){const t=i-1,s=this.dataWindow.slice(-t);e.set(s,0)}e[i-1]=t,this.dataWindow=e}else if(this.options.continuousWaveform){if(!this.dataWindow){const e=this.options.continuousWaveformDuration?Math.round(this.options.continuousWaveformDuration*o):(null!==(t=null===(i=this.wavesurfer)||void 0===i?void 0:i.getWidth())&&void 0!==t?t:0)*window.devicePixelRatio;this.dataWindow=new Float32Array(e)}let e=0;for(let i=0;i<n;i++){const t=Math.abs(a[i]);t>e&&(e=t)}if(d+1>this.dataWindow.length){const i=new Float32Array(2*this.dataWindow.length);i.set(this.dataWindow,0),this.dataWindow=i}this.dataWindow[d]=e,d++}else this.dataWindow=a;if(this.wavesurfer){const i=(null!==(s=null===(e=this.dataWindow)||void 0===e?void 0:e.length)&&void 0!==s?s:0)/o;this.wavesurfer.load("",[this.dataWindow],this.options.scrollingWaveform?this.options.scrollingWaveformWindow:i).then((()=>{this.wavesurfer&&this.options.continuousWaveform&&(this.wavesurfer.setTime(this.getDuration()/1e3),this.wavesurfer.options.minPxPerSec||this.wavesurfer.setOptions({minPxPerSec:this.wavesurfer.getWidth()/this.wavesurfer.getDuration()}))})).catch((i=>{console.error("Error rendering real-time recording data:",i)}))}}}),10);return{onDestroy:()=>{clearInterval(h),null==s||s.disconnect(),null==e||e.close()},onEnd:()=>{this.isWaveformPaused=!0,this.stopMic()}}}startMic(t){return i(this,void 0,void 0,(function*(){let i;this.micStream&&this.stopMic();try{i=yield navigator.mediaDevices.getUserMedia({audio:null==t||t})}catch(i){throw new Error("Error accessing the microphone: "+i.message)}const e=this.renderMicStream(i);return this.micStream=e,this.unsubscribeDestroy=this.once("destroy",e.onDestroy),this.unsubscribeRecordEnd=this.once("record-end",e.onEnd),this.stream=i,i}))}stopMic(){var i,t,e;null===(i=this.micStream)||void 0===i||i.onDestroy(),null===(t=this.unsubscribeDestroy)||void 0===t||t.call(this),null===(e=this.unsubscribeRecordEnd)||void 0===e||e.call(this),this.micStream=null,this.unsubscribeDestroy=void 0,this.unsubscribeRecordEnd=void 0,this.stream&&(this.stream.getTracks().forEach((i=>i.stop())),this.stream=null,this.mediaRecorder=null)}startRecording(t){return i(this,void 0,void 0,(function*(){const i=this.stream||(yield this.startMic(t));this.dataWindow=null;const e=this.mediaRecorder||new MediaRecorder(i,{mimeType:this.options.mimeType||r.find((i=>MediaRecorder.isTypeSupported(i))),audioBitsPerSecond:this.options.audioBitsPerSecond});this.mediaRecorder=e,this.stopRecording();const s=[];e.ondataavailable=i=>{i.data.size>0&&s.push(i.data),this.emit("record-data-available",i.data)};const o=i=>{var t;const o=new Blob(s,{type:e.mimeType});this.emit(i,o),this.options.renderRecordedAudio&&(this.applyOriginalOptionsIfNeeded(),this.recordedBlobUrl&&URL.revokeObjectURL(this.recordedBlobUrl),this.recordedBlobUrl=URL.createObjectURL(o),null===(t=this.wavesurfer)||void 0===t||t.load(this.recordedBlobUrl))};e.onpause=()=>o("record-pause"),e.onstop=()=>o("record-end"),e.start(this.options.mediaRecorderTimeslice),this.lastStartTime=performance.now(),this.lastDuration=0,this.duration=0,this.isWaveformPaused=!1,this.timer.start(),this.emit("record-start")}))}getDuration(){return this.duration}isRecording(){var i;return"recording"===(null===(i=this.mediaRecorder)||void 0===i?void 0:i.state)}isPaused(){var i;return"paused"===(null===(i=this.mediaRecorder)||void 0===i?void 0:i.state)}isActive(){var i;return"inactive"!==(null===(i=this.mediaRecorder)||void 0===i?void 0:i.state)}stopRecording(){var i;this.isActive()&&(null===(i=this.mediaRecorder)||void 0===i||i.stop(),this.timer.stop())}pauseRecording(){var i,t;this.isRecording()&&(this.isWaveformPaused=!0,null===(i=this.mediaRecorder)||void 0===i||i.requestData(),null===(t=this.mediaRecorder)||void 0===t||t.pause(),this.timer.stop(),this.lastDuration=this.duration)}resumeRecording(){var i;this.isPaused()&&(this.isWaveformPaused=!1,null===(i=this.mediaRecorder)||void 0===i||i.resume(),this.timer.start(),this.lastStartTime=performance.now(),this.emit("record-resume"))}static getAvailableAudioDevices(){return i(this,void 0,void 0,(function*(){return navigator.mediaDevices.enumerateDevices().then((i=>i.filter((i=>"audioinput"===i.kind))))}))}destroy(){this.applyOriginalOptionsIfNeeded(),super.destroy(),this.stopRecording(),this.stopMic(),this.recordedBlobUrl&&(URL.revokeObjectURL(this.recordedBlobUrl),this.recordedBlobUrl=null)}applyOriginalOptionsIfNeeded(){this.wavesurfer&&this.originalOptions&&(this.wavesurfer.setOptions(this.originalOptions),delete this.originalOptions)}}return n}));