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getEvents(){return["click"]}},fadeout:class{constructor(t){this.track=t}setup(t,e){this.samplesPerPixel=t,this.sampleRate=e}click(t){const e=g(t.offsetX,this.samplesPerPixel,this.sampleRate);e>this.track.getStartTime()&&e<this.track.getEndTime()&&this.track.ee.emit("fadeout",this.track.getEndTime()-e,this.track)}static getClass(){return".state-fadeout"}static getEvents(){return["click"]}}};class q{constructor(t,e,s,i,r,n,a,o){this.peaks=t,this.offset=e,this.color=i,this.bits=s,this.scale=r,this.height=n,this.barWidth=a,this.barGap=o}static drawFrame(t,e,s,i,r,n,a){const o=Math.abs(i*e),l=Math.abs(r*e);t.fillRect(s,0,n,e-l),t.fillRect(s,e+o,n,e-o),0!==a&&t.fillRect(s+n,0,a,2*e)}hook(t,e,s){if(void 0!==s&&s.peaks===this.peaks&&s.scale===this.scale&&s.height===this.height)return;const i=this.scale,r=t.width/i,n=t.getContext("2d"),a=t.height/i/2,o=2**(this.bits-1),l=this.barWidth,c=this.barGap,h=l+c;n.clearRect(0,0,t.width,t.height),n.save(),n.fillStyle=this.color,n.scale(i,i);for(let t=0;t<r;t+=h){const e=this.peaks[2*(t+this.offset)]/o,s=this.peaks[2*(t+this.offset)+1]/o;q.drawFrame(n,a,t,e,s,l,c)}n.restore()}}const H=q;var X=s(6226);class B{constructor(t,e,s,i){this.type=t,this.shape=e,this.duration=s,this.samplesPerPixel=i}static createCurve(t,e,s){let i,r;switch(e){case W.Y1:i=1;break;case W.h7:i=-1;break;default:throw new Error("Unsupported fade type.")}switch(t){case W._h:r=(0,X.sCurve)(s,i);break;case W.t$:r=(0,X.linear)(s,i);break;case W.Jl:r=(0,X.exponential)(s,i);break;case W.Hp:r=(0,X.logarithmic)(s,10,i);break;default:throw new Error("Unsupported fade shape")}return r}hook(t,e,s){if(void 0!==s&&s.shape===this.shape&&s.type===this.type&&s.duration===this.duration&&s.samplesPerPixel===this.samplesPerPixel)return;const i=t.getContext("2d"),r=t.width,n=t.height,a=B.createCurve(this.shape,this.type,r),o=a.length;let l=n-a[0]*n;i.clearRect(0,0,t.width,t.height),i.save(),i.strokeStyle="black",i.beginPath(),i.moveTo(0,l);for(let t=1;t<o;t+=1)l=n-a[t]*n,i.lineTo(t,l);i.stroke(),i.restore()}}const Y=B,Z=class{constructor(t){this.gain=t}hook(t){t.value=100*this.gain,t.title=`${Math.round(100*this.gain)}% volume`}},J=class{constructor(t){this.stereoPan=t}hook(t){let e;t.value=100*this.stereoPan,e=0===this.stereoPan?"Center":this.stereoPan<0?"Left":"Right";const s=`${Math.abs(Math.round(100*this.stereoPan))}% `;t.title=`Pan: ${0!==this.stereoPan?s:""}${e}`}},K=class{constructor(){this.name="Untitled",this.customClass=void 0,this.waveOutlineColor=void 0,this.gain=1,this.fades={},this.peakData={type:"WebAudio",mono:!1},this.cueIn=0,this.cueOut=0,this.duration=0,this.startTime=0,this.endTime=0,this.stereoPan=0}setEventEmitter(t){this.ee=t}setName(t){this.name=t}setCustomClass(t){this.customClass=t}setWaveOutlineColor(t){this.waveOutlineColor=t}setCues(t,e){if(e<t)throw new Error("cue out cannot be less than cue in");this.cueIn=t,this.cueOut=e,this.duration=this.cueOut-this.cueIn,this.endTime=this.startTime+this.duration}trim(t,e){const s=this.getStartTime(),i=this.getEndTime(),r=this.cueIn-s;if(s<=t&&i>=t||s<=e&&i>=e){const n=t<s?s:t,a=e>i?i:e;this.setCues(n+r,a+r),t>s&&this.setStartTime(t)}}setStartTime(t){this.startTime=t,this.endTime=t+this.duration}setPlayout(t){this.playout=t}setOfflinePlayout(t){this.offlinePlayout=t}setEnabledStates(t={}){this.enabledStates=A()({},{cursor:!0,fadein:!0,fadeout:!0,select:!0,shift:!0},t)}setFadeIn(t,e="logarithmic"){if(t>this.duration)throw new Error("Invalid Fade In");const s={shape:e,start:0,end:t};this.fadeIn&&(this.removeFade(this.fadeIn),this.fadeIn=void 0),this.fadeIn=this.saveFade(W.Y1,s.shape,s.start,s.end)}setFadeOut(t,e="logarithmic"){if(t>this.duration)throw new Error("Invalid Fade Out");const s={shape:e,start:this.duration-t,end:this.duration};this.fadeOut&&(this.removeFade(this.fadeOut),this.fadeOut=void 0),this.fadeOut=this.saveFade(W.h7,s.shape,s.start,s.end)}saveFade(t,e,s,i){const r=z();return this.fades[r]={type:t,shape:e,start:s,end:i},r}removeFade(t){delete this.fades[t]}setBuffer(t){this.buffer=t}setPeakData(t){this.peakData=t}calculatePeaks(t,e){const s=v(this.cueIn,e),i=v(this.cueOut,e);this.setPeaks(N()(this.buffer,t,this.peakData.mono,s,i))}setPeaks(t){this.peaks=t}setState(t){if(this.state=t,this.state&&this.enabledStates[this.state]){const t=U[this.state];this.stateObj=new t(this)}else this.stateObj=void 0}getStartTime(){return this.startTime}getEndTime(){return this.endTime}getDuration(){return this.duration}isPlaying(){return this.playout.isPlaying()}setShouldPlay(t){this.playout.setShouldPlay(t)}setGainLevel(t){this.gain=t,this.playout.setVolumeGainLevel(t)}setMasterGainLevel(t){this.playout.setMasterGainLevel(t)}setStereoPanValue(t){this.stereoPan=t,this.playout.setStereoPanValue(t)}schedulePlay(t,e,s,i){let r,n,a=t,o=s?s-e:void 0;const l=A()({},{shouldPlay:!0,masterGain:1,isOffline:!1},i),c=l.isOffline?this.offlinePlayout:this.playout;if(this.endTime<=e||o&&e+o<this.startTime)return Promise.resolve();this.startTime>=e?(r=0,a+=this.startTime-e,s?(o-=this.startTime-e,n=Math.min(o,this.duration)):n=this.duration):(r=e-this.startTime,n=s?Math.min(o,this.duration-r):this.duration-r),r+=this.cueIn;const h=e-this.startTime,u=c.setUpSource();return C()(this.fades,(e=>{let s,i;if(h<e.end)switch(h<=e.start?(s=t+(e.start-h),i=e.end-e.start):h>e.start&&h<e.end&&(s=t-(h-e.start),i=e.end-e.start),e.type){case W.Y1:c.applyFadeIn(s,i,e.shape);break;case W.h7:c.applyFadeOut(s,i,e.shape);break;default:throw new Error("Invalid fade type saved on track.")}})),c.setVolumeGainLevel(this.gain),c.setShouldPlay(l.shouldPlay),c.setMasterGainLevel(l.masterGain),c.setStereoPanValue(this.stereoPan),c.play(a,r,n),u}scheduleStop(t=0){this.playout.stop(t)}renderOverlay(t){const e={attributes:{style:`position: absolute; top: 0; right: 0; bottom: 0; left: 0; width: ${y(t.playlistLength,t.resolution,t.sampleRate)}px; z-index: 9;`}};let s="";if(this.stateObj){this.stateObj.setup(t.resolution,t.sampleRate);const i=U[this.state];i.getEvents().forEach((t=>{e[`on${t}`]=this.stateObj[t].bind(this.stateObj)})),s=i.getClass()}return c()(`div.playlist-overlay${s}`,e)}renderControls(t){const e=t.muted?".active":"",s=t.soloed?".active":"",i=t.collapsed,r=this.peaks.data.length,n=t.controls.widgets,a=c()("button.btn.btn-danger.btn-xs.track-remove",{attributes:{type:"button",title:"Remove track"},onclick:()=>{this.ee.emit("removeTrack",this)}},[c()("i.fas.fa-times")]),o=c()("span",[this.name]),l=c()("button.btn.btn-info.btn-xs.track-collapse",{attributes:{type:"button",title:i?"Expand track":"Collapse track"},onclick:()=>{this.ee.emit("changeTrackView",this,{collapsed:!i})}},[c()("i.fas."+(i?"fa-caret-down":"fa-caret-up"))]),h=[];n.remove&&h.push(a),h.push(o),n.collapse&&h.push(l);const u=[c()("div.track-header",h)];return i||(n.muteOrSolo&&u.push(c()("div.btn-group",[c()(`button.btn.btn-outline-dark.btn-xs.btn-mute${e}`,{attributes:{type:"button"},onclick:()=>{this.ee.emit("mute",this)}},["Mute"]),c()(`button.btn.btn-outline-dark.btn-xs.btn-solo${s}`,{onclick:()=>{this.ee.emit("solo",this)}},["Solo"])])),n.volume&&u.push(c()("label.volume",[c()("input.volume-slider",{attributes:{"aria-label":"Track volume control",type:"range",min:0,max:100,value:100},hook:new Z(this.gain),oninput:t=>{this.ee.emit("volumechange",t.target.value,this)}})])),n.stereoPan&&u.push(c()("label.stereopan",[c()("input.stereopan-slider",{attributes:{"aria-label":"Track stereo pan control",type:"range",min:-100,max:100,value:100},hook:new J(this.stereoPan),oninput:t=>{this.ee.emit("stereopan",t.target.value/100,this)}})]))),c()("div.controls",{attributes:{style:`height: ${r*t.height}px; width: ${t.controls.width}px; position: absolute; left: 0; z-index: 10;`}},u)}render(t){const e=this.peaks.length,s=y(t.playbackSeconds,t.resolution,t.sampleRate),i=y(this.startTime,t.resolution,t.sampleRate),r=y(this.endTime,t.resolution,t.sampleRate);let n=0;const a=this.peaks.data.length,o=Math.floor(window.devicePixelRatio);s>0&&s>i&&(n=s<r?s-i:e);const l=[c()("div.cursor",{attributes:{style:`position: absolute; width: 1px; margin: 0; padding: 0; top: 0; left: ${s}px; bottom: 0; z-index: 5;`}})],h=Object.keys(this.peaks.data).map((s=>{const r=[c()("div.channel-progress",{attributes:{style:`position: absolute; width: ${n}px; height: ${t.height}px; z-index: 2;`}})];let a=0,l=e;const h=this.peaks.data[s];for(;l>0;){const e=Math.min(l,1e3),s=this.waveOutlineColor?this.waveOutlineColor:t.colors.waveOutlineColor;r.push(c()("canvas",{attributes:{width:e*o,height:t.height*o,style:`float: left; position: relative; margin: 0; padding: 0; z-index: 3; width: ${e}px; height: ${t.height}px;`},hook:new H(h,a,this.peaks.bits,s,o,t.height,t.barWidth,t.barGap)})),l-=e,a+=1e3}if(this.fadeIn){const e=this.fades[this.fadeIn],s=y(e.end-e.start,t.resolution,t.sampleRate);r.push(c()("div.wp-fade.wp-fadein",{attributes:{style:`position: absolute; height: ${t.height}px; width: ${s}px; top: 0; left: 0; z-index: 4;`}},[c()("canvas",{attributes:{width:s,height:t.height},hook:new Y(e.type,e.shape,e.end-e.start,t.resolution)})]))}if(this.fadeOut){const e=this.fades[this.fadeOut],s=y(e.end-e.start,t.resolution,t.sampleRate);r.push(c()("div.wp-fade.wp-fadeout",{attributes:{style:`position: absolute; height: ${t.height}px; width: ${s}px; top: 0; right: 0; z-index: 4;`}},[c()("canvas",{attributes:{width:s,height:t.height},hook:new Y(e.type,e.shape,e.end-e.start,t.resolution)})]))}return c()(`div.channel.channel-${s}`,{attributes:{style:`height: ${t.height}px; width: ${e}px; top: ${s*t.height}px; left: ${i}px; position: absolute; margin: 0; padding: 0; z-index: 1;`}},r)}));if(l.push(h),l.push(this.renderOverlay(t)),!0===t.isActive){const e=y(t.timeSelection.start,t.resolution,t.sampleRate),s=y(t.timeSelection.end,t.resolution,t.sampleRate)-e+1,i=s>1?".segment":".point";l.push(c()(`div.selection${i}`,{attributes:{style:`position: absolute; width: ${s}px; bottom: 0; top: 0; left: ${e}px; z-index: 4;`}}))}const u=c()("div.waveform",{attributes:{style:`height: ${a*t.height}px; position: relative;`}},l),d=[];let p=0;t.controls.show&&(d.push(this.renderControls(t)),p=t.controls.width),d.push(u);const f=t.shouldPlay?"":".silent",m=void 0===this.customClass?"":`.${this.customClass}`;return c()(`div.channel-wrapper${f}${m}`,{attributes:{style:`margin-left: ${p}px; height: ${t.height*a}px;`}},d)}getTrackDetails(){const t={src:this.src,start:this.startTime,end:this.endTime,name:this.name,customClass:this.customClass,cuein:this.cueIn,cueout:this.cueOut,stereoPan:this.stereoPan,gain:this.gain};if(this.fadeIn){const e=this.fades[this.fadeIn];t.fadeIn={shape:e.shape,duration:e.end-e.start}}if(this.fadeOut){const e=this.fades[this.fadeOut];t.fadeOut={shape:e.shape,duration:e.end-e.start}}return t}},Q=class{constructor(t,e){this.ac=t,this.gain=1,this.buffer=e,this.destination=this.ac.destination,this.ac.createStereoPanner=t.createStereoPanner||t.createPanner}applyFade(t,e,s,i="logarithmic"){if(t===W.Y1)(0,W.L7)(this.fadeGain.gain,i,e,s);else{if(t!==W.h7)throw new Error("Unsupported fade type");(0,W.Mt)(this.fadeGain.gain,i,e,s)}}applyFadeIn(t,e,s="logarithmic"){this.applyFade(W.Y1,t,e,s)}applyFadeOut(t,e,s="logarithmic"){this.applyFade(W.h7,t,e,s)}isPlaying(){return void 0!==this.source}getDuration(){return this.buffer.duration}setAudioContext(t){this.ac=t,this.ac.createStereoPanner=t.createStereoPanner||t.createPanner,this.destination=this.ac.destination}setUpSource(){this.source=this.ac.createBufferSource(),this.source.buffer=this.buffer;const t=new Promise((t=>{this.source.onended=()=>{this.source.disconnect(),this.fadeGain.disconnect(),this.volumeGain.disconnect(),this.shouldPlayGain.disconnect(),this.panner.disconnect(),this.masterGain.disconnect(),this.source=void 0,this.fadeGain=void 0,this.volumeGain=void 0,this.shouldPlayGain=void 0,this.panner=void 0,this.masterGain=void 0,t()}}));return this.fadeGain=this.ac.createGain(),this.volumeGain=this.ac.createGain(),this.shouldPlayGain=this.ac.createGain(),this.masterGain=this.ac.createGain(),this.panner=this.ac.createStereoPanner(),this.source.connect(this.fadeGain),this.fadeGain.connect(this.volumeGain),this.volumeGain.connect(this.shouldPlayGain),this.shouldPlayGain.connect(this.masterGain),this.masterGain.connect(this.panner),this.panner.connect(this.destination),t}setVolumeGainLevel(t){this.volumeGain&&(this.volumeGain.gain.value=t)}setShouldPlay(t){this.shouldPlayGain&&(this.shouldPlayGain.gain.value=t?1:0)}setMasterGainLevel(t){this.masterGain&&(this.masterGain.gain.value=t)}setStereoPanValue(t){const e=void 0===t?0:t;this.panner&&(void 0!==this.panner.pan?this.panner.pan.value=e:(this.panner.panningModel="equalpower",this.panner.setPosition(e,0,1-Math.abs(e))))}play(t,e,s){this.source.start(t,e,s)}stop(t=0){this.source&&this.source.stop(t)}};const tt=class{constructor(t,e={}){this.playlist=t,this.data=e,this.active=!1,this.ondragover=t=>{this.active&&(t.preventDefault(),this.emitDrag(t.clientX))}}emitDrag(t){const e=t-this.prevX;if(e){const s=g(e,this.playlist.samplesPerPixel,this.playlist.sampleRate);this.prevX=t,this.playlist.ee.emit("dragged",s,this.data)}}complete(){this.active=!1,document.removeEventListener("dragover",this.ondragover)}dragstart(t){const e=t;this.active=!0,this.prevX=t.clientX,e.dataTransfer.dropEffect="move",e.dataTransfer.effectAllowed="move",e.dataTransfer.setData("text/plain",""),document.addEventListener("dragover",this.ondragover)}dragend(t){this.active&&(t.preventDefault(),this.complete())}static getClass(){return".shift"}static getEvents(){return["dragstart","dragend"]}},et=function(){};et.prototype.hook=function(t){const e=t.querySelector(".current");if(e){const s=t.getBoundingClientRect(),i=e.getBoundingClientRect().top-s.top;t.scrollTop+=i}};const st=et;const it=class{constructor(t,e,s=[],i=!1,r=!1,n=!1,a=0){this.playlist=t,this.marginLeft=a,this.resizeHandlers=[],this.editable=i,this.annotations=e.map((t=>function(t){return{id:t.id||z(),start:Number(t.begin)||0,end:Number(t.end)||0,lines:t.lines||[""],lang:t.language||"en"}}(t))),this.setupInteractions(),this.controls=s,this.setupEE(t.ee),this.playlist.isContinuousPlay=n,this.playlist.linkEndpoints=r,this.length=this.annotations.length}setupInteractions(){this.annotations.forEach(((t,e)=>{const s=new tt(this.playlist,{direction:"left",index:e}),i=new tt(this.playlist,{direction:"right",index:e});this.resizeHandlers.push(s),this.resizeHandlers.push(i)}))}setupEE(t){return t.on("dragged",((t,e)=>{const s=e.index,i=this.annotations,r=i[s];if("left"===e.direction){const e=r.start;r.start+=t,r.start<0&&(r.start=0),s&&i[s-1].end>r.start&&(i[s-1].end=r.start),this.playlist.linkEndpoints&&s&&i[s-1].end===e&&(i[s-1].end=r.start)}else{const e=r.end;r.end+=t,r.end>this.playlist.duration&&(r.end=this.playlist.duration),s<i.length-1&&i[s+1].start<r.end&&(i[s+1].start=r.end),this.playlist.linkEndpoints&&s<i.length-1&&i[s+1].start===e&&(i[s+1].start=r.end)}this.playlist.drawRequest()})),t.on("continuousplay",(t=>{this.playlist.isContinuousPlay=t})),t.on("linkendpoints",(t=>{this.playlist.linkEndpoints=t})),t.on("annotationsrequest",(()=>{this.export()})),t}export(){const t=this.annotations.map((t=>{return e=t,{begin:String(e.start.toFixed(3)),end:String(e.end.toFixed(3)),id:String(e.id),language:e.lang,lines:e.lines};var e})),e=`data:text/json;charset=utf-8,${encodeURIComponent(JSON.stringify(t))}`,s=document.createElement("a");document.body.appendChild(s),s.href=e,s.download="annotations.json",s.click(),document.body.removeChild(s)}renderResizeLeft(t){const e=tt.getEvents(),s={attributes:{style:"position: absolute; height: 30px; width: 10px; top: 0; left: -2px",draggable:!0}},i=this.resizeHandlers[2*t];return e.forEach((t=>{s[`on${t}`]=i[t].bind(i)})),c()("div.resize-handle.resize-w",s)}renderResizeRight(t){const e=tt.getEvents(),s={attributes:{style:"position: absolute; height: 30px; width: 10px; top: 0; right: -2px",draggable:!0}},i=this.resizeHandlers[2*t+1];return e.forEach((t=>{s[`on${t}`]=i[t].bind(i)})),c()("div.resize-handle.resize-e",s)}renderControls(t,e){const s=this;return this.controls.map((i=>c()(`i.${i.class}`,{attributes:{title:i.title},onclick:()=>{i.action(t,e,s.annotations,{linkEndpoints:s.playlist.linkEndpoints}),this.setupInteractions(),s.playlist.drawRequest()}})))}render(){const t=c()("div.annotations-boxes",{attributes:{style:`height: 30px; position: relative; margin-left: ${this.marginLeft}px;`}},this.annotations.map(((t,e)=>{const s=this.playlist.samplesPerPixel,i=this.playlist.sampleRate,r=i/s,n=y(this.playlist.scrollLeft,s,i),a=Math.floor(t.start*r-n),o=Math.ceil(t.end*r-t.start*r);return c()("div.annotation-box",{attributes:{style:`position: absolute; height: 30px; width: ${o}px; left: ${a}px`,"data-id":t.id}},[this.renderResizeLeft(e),c()("span.id",{onclick:()=>{const t=this.annotations[e].start,s=this.annotations[e].end;this.playlist.isContinuousPlay?(this.playlist.seek(t,t),this.playlist.ee.emit("play",t)):(this.playlist.seek(t,s),this.playlist.ee.emit("play",t,s))}},[t.id]),this.renderResizeRight(e)])}))),e=c()("div.annotations-boxes-wrapper",{attributes:{style:"overflow: hidden;"}},[t]),s=c()("div.annotations-text",{hook:new st},this.annotations.map(((t,e)=>{const s=function(t){function e(t,e){const s=parseInt(t/3600,10)%24,i=parseInt(t/60,10)%60,r=(t%60).toFixed(e);return`${s<10?`0${s}`:s}:${i<10?`0${i}`:i}:${r<10?`0${r}`:r}`}return{seconds:t=>t.toFixed(0),thousandths:t=>t.toFixed(3),"hh:mm:ss":function(t){return e(t,0)},"hh:mm:ss.u":function(t){return e(t,1)},"hh:mm:ss.uu":function(t){return e(t,2)},"hh:mm:ss.uuu":function(t){return e(t,3)}}[t]}(this.playlist.durationFormat),i=s(t.start),r=s(t.end);let n="";this.playlist.isPlaying()&&this.playlist.playbackSeconds>=t.start&&this.playlist.playbackSeconds<=t.end&&(n=".current");const a={attributes:{contenteditable:!0},oninput:e=>{t.lines=[e.target.innerText]},onkeypress:t=>{13!==t.which&&13!==t.keyCode||(t.target.blur(),t.preventDefault())}},o=this.editable?a:{};return c()(`div.annotation${n}`,[c()("span.annotation-id",[t.id]),c()("span.annotation-start",[i]),c()("span.annotation-end",[r]),c()("span.annotation-lines",o,[t.lines]),c()("span.annotation-actions",this.renderControls(t,e))])})));return c()("div.annotations",[e,s])}};function rt(){function t(t){let e,s=1/0,i=-1/0;for(let r=0;r<t.length;r+=1)e=t[r],s>e&&(s=e),i<e&&(i=e);return{min:s,max:i}}function e(t,e){const s=2**(e-1),i=t<0?t*s:t*s-1;return Math.max(-s,Math.min(s-1,i))}function s(s,i=1e4,r=8){if([8,16,32].indexOf(r)<0)throw new Error("Invalid number of bits specified for peaks.");const n=[],a=s.length;n.push(function(s,i,r){const n=s.length,a=Math.ceil(n/i);let o,l,c,h,u,d;const p=new self[`Int${r}Array`](2*a);for(let f=0;f<a;f+=1)o=f*i,l=(f+1)*i>n?n:(f+1)*i,c=s.subarray(o,l),d=t(c),u=e(d.min,r),h=e(d.max,r),p[2*f]=u,p[2*f+1]=h;return p}(s.subarray(0,a),i,r));return{bits:r,length:n[0].length/2,data:n}}onmessage=function(t){const e=s(t.data.samples,t.data.samplesPerPixel);postMessage(e)}}function nt(){let t,e=0,s=[],i=[];function r(t,e,s){for(let i=0;i<s.length;i+=1)t.setUint8(e+i,s.charCodeAt(i))}function n(e,s=!1){const i=new ArrayBuffer(44+2*e.length),n=new DataView(i);return r(n,0,"RIFF"),n.setUint32(4,32+2*e.length,!0),r(n,8,"WAVE"),r(n,12,"fmt "),n.setUint32(16,16,!0),n.setUint16(20,1,!0),n.setUint16(22,s?1:2,!0),n.setUint32(24,t,!0),n.setUint32(28,4*t,!0),n.setUint16(32,4,!0),n.setUint16(34,16,!0),r(n,36,"data"),n.setUint32(40,2*e.length,!0),function(t,e,s){let i=e;for(let e=0;e<s.length;e+=1,i+=2){const r=Math.max(-1,Math.min(1,s[e]));t.setInt16(i,r<0?32768*r:32767*r,!0)}}(n,44,e),n}function a(t,e){const s=new Float32Array(e);let i=0;for(let e=0;e<t.length;e+=1)s.set(t[e],i),i+=t[e].length;return s}function o(t){const r=n(function(t,e){const s=t.length+e.length,i=new Float32Array(s);let r=0,n=0;for(;r<s;)i[r+=1]=t[n],i[r+=1]=e[n],n+=1;return i}(a(s,e),a(i,e))),o=new Blob([r],{type:t});postMessage(o)}onmessage=function(r){switch(r.data.command){case"init":a=r.data.config,t=a.sampleRate;break;case"record":n=r.data.buffer,s.push(n[0]),i.push(n[1]),e+=n[0].length;break;case"exportWAV":o(r.data.type);break;case"clear":e=0,s=[],i=[];break;default:throw new Error("Unknown export worker command")}var n,a}}function at(t={},s=o()()){if(void 0===t.container)throw new Error("DOM element container must be given.");window.OfflineAudioContext=window.OfflineAudioContext||window.webkitOfflineAudioContext,window.AudioContext=window.AudioContext||window.webkitAudioContext;const i=new window.AudioContext,r={ac:i,sampleRate:i.sampleRate,samplesPerPixel:4096,mono:!0,fadeType:"logarithmic",exclSolo:!1,timescale:!1,controls:{show:!1,width:150,widgets:{muteOrSolo:!0,volume:!0,stereoPan:!0,collapse:!0,remove:!0}},colors:{waveOutlineColor:"white",timeColor:"grey",fadeColor:"black"},seekStyle:"line",waveHeight:128,collapsedWaveHeight:30,barWidth:1,barGap:0,state:"cursor",zoomLevels:[512,1024,2048,4096],annotationList:{annotations:[],controls:[],editable:!1,linkEndpoints:!1,isContinuousPlay:!1},isAutomaticScroll:!1},a=e()({},t,r),l=a.zoomLevels.indexOf(a.samplesPerPixel);if(-1===l)throw new Error("initial samplesPerPixel must be included in array zoomLevels");const h=new class{constructor(){this.tracks=[],this.soloedTracks=[],this.mutedTracks=[],this.collapsedTracks=[],this.playoutPromises=[],this.cursor=0,this.playbackSeconds=0,this.duration=0,this.scrollLeft=0,this.scrollTimer=void 0,this.showTimescale=!1,this.isScrolling=!1,this.fadeType="logarithmic",this.masterGain=1,this.annotations=[],this.durationFormat="hh:mm:ss.uuu",this.isAutomaticScroll=!1,this.resetDrawTimer=void 0}initExporter(){this.exportWorker=new(m())(nt)}initRecorder(t){this.mediaRecorder=new MediaRecorder(t),this.mediaRecorder.onstart=()=>{const t=new K;t.setName("Recording"),t.setEnabledStates(),t.setEventEmitter(this.ee),this.recordingTrack=t,this.tracks.push(t),this.chunks=[],this.working=!1},this.mediaRecorder.ondataavailable=t=>{if(this.chunks.push(t.data),!this.working){const t=new Blob(this.chunks,{type:"audio/ogg; codecs=opus"});P.createLoader(t,this.ac).load().then((t=>{this.recorderWorker.postMessage({samples:t.getChannelData(0),samplesPerPixel:this.samplesPerPixel}),this.recordingTrack.setCues(0,t.duration),this.recordingTrack.setBuffer(t),this.recordingTrack.setPlayout(new Q(this.ac,t)),this.adjustDuration()})).catch((()=>{this.working=!1})),this.working=!0}},this.mediaRecorder.onstop=()=>{this.chunks=[],this.working=!1},this.recorderWorker=new(m())(rt),this.recorderWorker.onmessage=t=>{this.recordingTrack.setPeaks(t.data),this.working=!1,this.drawRequest()}}setShowTimeScale(t){this.showTimescale=t}setMono(t){this.mono=t}setExclSolo(t){this.exclSolo=t}setSeekStyle(t){this.seekStyle=t}getSeekStyle(){return this.seekStyle}setSampleRate(t){this.sampleRate=t}setSamplesPerPixel(t){this.samplesPerPixel=t}setAudioContext(t){this.ac=t}setControlOptions(t){this.controls=t}setWaveHeight(t){this.waveHeight=t}setCollapsedWaveHeight(t){this.collapsedWaveHeight=t}setColors(t){this.colors=t}setBarWidth(t){this.barWidth=t}setBarGap(t){this.barGap=t}setAnnotations(t){const e=this.controls.show?this.controls.width:0;this.annotationList=new it(this,t.annotations,t.controls,t.editable,t.linkEndpoints,t.isContinuousPlay,e)}setEventEmitter(t){this.ee=t}getEventEmitter(){return this.ee}setUpEventEmitter(){const t=this.ee;t.on("automaticscroll",(t=>{this.isAutomaticScroll=t})),t.on("durationformat",(t=>{this.durationFormat=t,this.drawRequest()})),t.on("select",((t,e,s)=>{this.isPlaying()?(this.lastSeeked=t,this.pausedAt=void 0,this.restartPlayFrom(t)):(this.seek(t,e,s),this.ee.emit("timeupdate",t),this.drawRequest())})),t.on("startaudiorendering",(t=>{this.startOfflineRender(t)})),t.on("statechange",(t=>{this.setState(t),this.drawRequest()})),t.on("shift",((t,e)=>{e.setStartTime(e.getStartTime()+t),this.adjustDuration(),this.drawRequest()})),t.on("record",(()=>{this.record()})),t.on("play",((t,e)=>{this.play(t,e)})),t.on("pause",(()=>{this.pause()})),t.on("stop",(()=>{this.stop()})),t.on("rewind",(()=>{this.rewind()})),t.on("fastforward",(()=>{this.fastForward()})),t.on("clear",(()=>{this.clear().then((()=>{this.drawRequest()}))})),t.on("solo",(t=>{this.soloTrack(t),this.adjustTrackPlayout(),this.drawRequest()})),t.on("mute",(t=>{this.muteTrack(t),this.adjustTrackPlayout(),this.drawRequest()})),t.on("removeTrack",(t=>{this.removeTrack(t),this.adjustTrackPlayout(),this.drawRequest()})),t.on("changeTrackView",((t,e)=>{this.collapseTrack(t,e),this.drawRequest()})),t.on("volumechange",((t,e)=>{e.setGainLevel(t/100),this.drawRequest()})),t.on("mastervolumechange",(t=>{this.masterGain=t/100,this.tracks.forEach((t=>{t.setMasterGainLevel(this.masterGain)}))})),t.on("fadein",((t,e)=>{e.setFadeIn(t,this.fadeType),this.drawRequest()})),t.on("fadeout",((t,e)=>{e.setFadeOut(t,this.fadeType),this.drawRequest()})),t.on("stereopan",((t,e)=>{e.setStereoPanValue(t),this.drawRequest()})),t.on("fadetype",(t=>{this.fadeType=t})),t.on("newtrack",(t=>{this.load([{src:t,name:t.name}])})),t.on("trim",(()=>{const t=this.getActiveTrack(),e=this.getTimeSelection();t.trim(e.start,e.end),t.calculatePeaks(this.samplesPerPixel,this.sampleRate),this.setTimeSelection(0,0),this.drawRequest()})),t.on("zoomin",(()=>{const t=Math.max(0,this.zoomIndex-1),e=this.zoomLevels[t];e!==this.samplesPerPixel&&(this.setZoom(e),this.drawRequest())})),t.on("zoomout",(()=>{const t=Math.min(this.zoomLevels.length-1,this.zoomIndex+1),e=this.zoomLevels[t];e!==this.samplesPerPixel&&(this.setZoom(e),this.drawRequest())})),t.on("scroll",(()=>{this.isScrolling=!0,this.drawRequest(),clearTimeout(this.scrollTimer),this.scrollTimer=setTimeout((()=>{this.isScrolling=!1}),200)}))}load(t){const e=t.map((t=>P.createLoader(t.src,this.ac,this.ee).load()));return Promise.all(e).then((e=>{this.ee.emit("audiosourcesloaded");const s=e.map(((e,s)=>{const i=t[s],r=i.name||"Untitled",n=i.start||0,a=i.states||{},o=i.fadeIn,l=i.fadeOut,c=i.cuein||0,h=i.cueout||e.duration,u=i.gain||1,d=i.muted||!1,p=i.soloed||!1,f=i.selected,m=i.peaks||{type:"WebAudio",mono:this.mono},v=i.customClass||void 0,g=i.waveOutlineColor||void 0,y=i.stereoPan||0,b=new Q(this.ac,e),k=new K;return k.src=i.src,k.setBuffer(e),k.setName(r),k.setEventEmitter(this.ee),k.setEnabledStates(a),k.setCues(c,h),k.setCustomClass(v),k.setWaveOutlineColor(g),void 0!==o&&k.setFadeIn(o.duration,o.shape),void 0!==l&&k.setFadeOut(l.duration,l.shape),void 0!==f&&(this.setActiveTrack(k),this.setTimeSelection(f.start,f.end)),void 0!==m&&k.setPeakData(m),k.setState(this.getState()),k.setStartTime(n),k.setPlayout(b),k.setGainLevel(u),k.setStereoPanValue(y),d&&this.muteTrack(k),p&&this.soloTrack(k),k.calculatePeaks(this.samplesPerPixel,this.sampleRate),k}));this.tracks=this.tracks.concat(s),this.adjustDuration(),this.draw(this.render()),this.ee.emit("audiosourcesrendered")})).catch((t=>{this.ee.emit("audiosourceserror",t)}))}setActiveTrack(t){this.activeTrack=t}getActiveTrack(){return this.activeTrack}isSegmentSelection(){return this.timeSelection.start!==this.timeSelection.end}setTimeSelection(t=0,e){this.timeSelection={start:t,end:void 0===e?t:e},this.cursor=t}startOfflineRender(t){if(this.isRendering)return;this.isRendering=!0,this.offlineAudioContext=new OfflineAudioContext(2,44100*this.duration,44100);const e=this.offlineAudioContext.currentTime;this.tracks.forEach((t=>{t.setOfflinePlayout(new Q(this.offlineAudioContext,t.buffer)),t.schedulePlay(e,0,0,{shouldPlay:this.shouldTrackPlay(t),masterGain:1,isOffline:!0})})),this.offlineAudioContext.startRendering().then((e=>{if("buffer"===t)return this.ee.emit("audiorenderingfinished",t,e),void(this.isRendering=!1);"wav"===t&&(this.exportWorker.postMessage({command:"init",config:{sampleRate:44100}}),this.exportWorker.onmessage=e=>{this.ee.emit("audiorenderingfinished",t,e.data),this.isRendering=!1,this.exportWorker.postMessage({command:"clear"})},this.exportWorker.postMessage({command:"record",buffer:[e.getChannelData(0),e.getChannelData(1)]}),this.exportWorker.postMessage({command:"exportWAV",type:"audio/wav"}))})).catch((t=>{throw t}))}getTimeSelection(){return this.timeSelection}setState(t){this.state=t,this.tracks.forEach((e=>{e.setState(t)}))}getState(){return this.state}setZoomIndex(t){this.zoomIndex=t}setZoomLevels(t){this.zoomLevels=t}setZoom(t){this.samplesPerPixel=t,this.zoomIndex=this.zoomLevels.indexOf(t),this.tracks.forEach((e=>{e.calculatePeaks(t,this.sampleRate)}))}muteTrack(t){const e=this.mutedTracks.indexOf(t);e>-1?this.mutedTracks.splice(e,1):this.mutedTracks.push(t)}soloTrack(t){const e=this.soloedTracks.indexOf(t);e>-1?this.soloedTracks.splice(e,1):this.exclSolo?this.soloedTracks=[t]:this.soloedTracks.push(t)}collapseTrack(t,e){if(e.collapsed)this.collapsedTracks.push(t);else{const e=this.collapsedTracks.indexOf(t);e>-1&&this.collapsedTracks.splice(e,1)}}removeTrack(t){t.isPlaying()&&t.scheduleStop(),[this.mutedTracks,this.soloedTracks,this.collapsedTracks,this.tracks].forEach((e=>{const s=e.indexOf(t);s>-1&&e.splice(s,1)}))}adjustTrackPlayout(){this.tracks.forEach((t=>{t.setShouldPlay(this.shouldTrackPlay(t))}))}adjustDuration(){this.duration=this.tracks.reduce(((t,e)=>Math.max(t,e.getEndTime())),0)}shouldTrackPlay(t){let e;return this.soloedTracks.length>0?(e=!1,this.soloedTracks.indexOf(t)>-1&&(e=!0)):(e=!0,this.mutedTracks.indexOf(t)>-1&&(e=!1)),e}isPlaying(){return this.tracks.reduce(((t,e)=>t||e.isPlaying()),!1)}getCurrentTime(){return(this.lastSeeked||this.pausedAt||this.cursor)+this.getElapsedTime()}getElapsedTime(){return this.ac.currentTime-this.lastPlay}setMasterGain(t){this.ee.emit("mastervolumechange",t)}restartPlayFrom(t,e){return this.stopAnimation(),this.tracks.forEach((t=>{t.scheduleStop()})),Promise.all(this.playoutPromises).then(this.play.bind(this,t,e))}play(t,e){clearTimeout(this.resetDrawTimer);const s=this.ac.currentTime,i=this.getTimeSelection(),r=[],n=t||this.pausedAt||this.cursor;let a=e;return!a&&i.end!==i.start&&i.end>n&&(a=i.end),this.isPlaying()?this.restartPlayFrom(n,a):(this.tracks.forEach((t=>{t.setState("cursor"),r.push(t.schedulePlay(s,n,a,{shouldPlay:this.shouldTrackPlay(t),masterGain:this.masterGain}))})),this.lastPlay=s,this.playoutPromises=r,this.startAnimation(n),Promise.all(this.playoutPromises))}pause(){return this.isPlaying()?(this.pausedAt=this.getCurrentTime(),this.playbackReset()):Promise.all(this.playoutPromises)}stop(){return this.mediaRecorder&&"recording"===this.mediaRecorder.state&&this.mediaRecorder.stop(),this.pausedAt=void 0,this.playbackSeconds=0,this.playbackReset()}playbackReset(){return this.lastSeeked=void 0,this.stopAnimation(),this.tracks.forEach((t=>{t.scheduleStop(),t.setState(this.getState())})),this.drawRequest(),Promise.all(this.playoutPromises)}rewind(){return this.stop().then((()=>{this.scrollLeft=0,this.ee.emit("select",0,0)}))}fastForward(){return this.stop().then((()=>{this.viewDuration<this.duration?this.scrollLeft=this.duration-this.viewDuration:this.scrollLeft=0,this.ee.emit("select",this.duration,this.duration)}))}clear(){return this.stop().then((()=>{this.tracks=[],this.soloedTracks=[],this.mutedTracks=[],this.playoutPromises=[],this.cursor=0,this.playbackSeconds=0,this.duration=0,this.scrollLeft=0,this.seek(0,0,void 0)}))}record(){const t=[];this.mediaRecorder.start(300),this.tracks.forEach((e=>{e.setState("none"),t.push(e.schedulePlay(this.ac.currentTime,0,void 0,{shouldPlay:this.shouldTrackPlay(e)}))})),this.playoutPromises=t}startAnimation(t){this.lastDraw=this.ac.currentTime,this.animationRequest=window.requestAnimationFrame((()=>{this.updateEditor(t)}))}stopAnimation(){window.cancelAnimationFrame(this.animationRequest),this.lastDraw=void 0}seek(t,e,s){this.isPlaying()?(this.lastSeeked=t,this.pausedAt=void 0,this.restartPlayFrom(t)):(this.setActiveTrack(s||this.tracks[0]),this.pausedAt=t,this.setTimeSelection(t,e),"fill"===this.getSeekStyle()&&(this.playbackSeconds=t))}updateEditor(t){const e=this.ac.currentTime,s=this.getTimeSelection(),i=t||this.cursor,r=e-this.lastDraw;if(this.isPlaying()){const t=i+r;this.ee.emit("timeupdate",t),this.animationRequest=window.requestAnimationFrame((()=>{this.updateEditor(t)})),this.playbackSeconds=t,this.draw(this.render()),this.lastDraw=e}else i+r>=(this.isSegmentSelection()?s.end:this.duration)&&this.ee.emit("finished"),this.stopAnimation(),this.resetDrawTimer=setTimeout((()=>{this.pausedAt=void 0,this.lastSeeked=void 0,this.setState(this.getState()),this.playbackSeconds=0,this.draw(this.render())}),0)}drawRequest(){window.requestAnimationFrame((()=>{this.draw(this.render())}))}draw(t){const e=u()(this.tree,t);this.rootNode=p()(this.rootNode,e),this.tree=t,this.viewDuration=g(this.rootNode.clientWidth-this.controls.width,this.samplesPerPixel,this.sampleRate)}getTrackRenderData(t={}){const s={height:this.waveHeight,resolution:this.samplesPerPixel,sampleRate:this.sampleRate,controls:this.controls,isActive:!1,timeSelection:this.getTimeSelection(),playlistLength:this.duration,playbackSeconds:this.playbackSeconds,colors:this.colors,barWidth:this.barWidth,barGap:this.barGap};return e()({},t,s)}isActiveTrack(t){const e=this.getActiveTrack();return!this.isSegmentSelection()||e===t}renderAnnotations(){return this.annotationList.render()}renderTimeScale(){const t=this.controls.show?this.controls.width:0;return new O(this.duration,this.scrollLeft,this.samplesPerPixel,this.sampleRate,t,this.colors).render()}renderTrackSection(){const t=this.tracks.map((t=>{const e=this.collapsedTracks.indexOf(t)>-1;return t.render(this.getTrackRenderData({isActive:this.isActiveTrack(t),shouldPlay:this.shouldTrackPlay(t),soloed:this.soloedTracks.indexOf(t)>-1,muted:this.mutedTracks.indexOf(t)>-1,collapsed:e,height:e?this.collapsedWaveHeight:this.waveHeight,barGap:this.barGap,barWidth:this.barWidth}))}));return c()("div.playlist-tracks",{attributes:{style:"overflow: auto;"},onscroll:t=>{this.scrollLeft=g(t.target.scrollLeft,this.samplesPerPixel,this.sampleRate),this.ee.emit("scroll")},hook:new S(this)},t)}render(){const t=[];return this.showTimescale&&t.push(this.renderTimeScale()),t.push(this.renderTrackSection()),this.annotationList.length&&t.push(this.renderAnnotations()),c()("div.playlist",{attributes:{style:"overflow: hidden; position: relative;"}},t)}getInfo(){const t=[];return this.tracks.forEach((e=>{t.push(e.getTrackDetails())})),t}};h.setSampleRate(a.sampleRate),h.setSamplesPerPixel(a.samplesPerPixel),h.setAudioContext(a.ac),h.setEventEmitter(s),h.setUpEventEmitter(),h.setTimeSelection(0,0),h.setState(a.state),h.setControlOptions(a.controls),h.setWaveHeight(a.waveHeight),h.setCollapsedWaveHeight(a.collapsedWaveHeight),h.setColors(a.colors),h.setZoomLevels(a.zoomLevels),h.setZoomIndex(l),h.setMono(a.mono),h.setExclSolo(a.exclSolo),h.setShowTimeScale(a.timescale),h.setSeekStyle(a.seekStyle),h.setAnnotations(a.annotationList),h.setBarGap(a.barGap),h.setBarWidth(a.barWidth),h.isAutomaticScroll=a.isAutomaticScroll,h.isContinuousPlay=a.isContinuousPlay,h.linkedEndpoints=a.linkedEndpoints;const d=h.render(),f=n()(d);return a.container.appendChild(f),h.tree=d,h.rootNode=f,h}function ot(t={},e=o()()){return at(t,e)}})(),WaveformPlaylist=i})(); |