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session-desktop
mirror of https://github.com/oxen-io/session-desktop
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Code Issues 8 Projects Releases Wiki Activity

Audio playback and pause complete

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pull/1102/head
Vincent 6 years ago
parent e51d3a8ba8
commit 1950876307
3 changed files with 150 additions and 94 deletions
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1
package.json
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@ -116,7 +116,6 @@
"react-autosize-textarea": "^7.0.0",
"react-contextmenu": "2.11.0",
"react-dom": "16.8.3",
"react-mic": "^12.4.1",
"react-portal": "^4.2.0",
"react-qr-svg": "^2.2.1",
"react-redux": "6.0.1",

230
ts/components/session/conversation/SessionRecording.tsx
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@ -3,8 +3,6 @@ import moment from 'moment';
import { SessionIconButton, SessionIconSize, SessionIconType } from '../icon';
import { SessionButton, SessionButtonType, SessionButtonColor } from '../SessionButton';
import { Timestamp } from '../../conversation/Timestamp';
interface Props {
onStoppedRecording: any;
@ -30,6 +28,18 @@ interface State {
processor: any;
}
canvasParams: {
width: number;
height: number;
barRadius: number;
barWidth: number;
barPadding: number;
barColorInit: string;
barColorPlay: string;
maxBarHeight: number;
minBarHeight: number;
}
volumeArray?: Array<number>;
startTimestamp: number;
@ -46,25 +56,32 @@ export class SessionRecording extends React.Component<Props, State> {
constructor(props: any) {
super(props);
// Mouse interaction
this.handleHoverActions = this.handleHoverActions.bind(this);
this.handleUnhoverActions = this.handleUnhoverActions.bind(this);
// Component actions
this.playAudio = this.playAudio.bind(this);
this.pauseAudio = this.pauseAudio.bind(this);
this.stopRecording = this.stopRecording.bind(this);
// Voice message actions
this.onSendVoiceMessage = this.onSendVoiceMessage.bind(this);
this.onDeleteVoiceMessage = this.onDeleteVoiceMessage.bind(this);
// Stream monitors
this.timerUpdate = this.timerUpdate.bind(this);
this.onRecordingStream = this.onRecordingStream.bind(this);
this.stopRecordingStream = this.stopRecordingStream.bind(this);
// Refs
this.visualisationRef = React.createRef();
this.visualisationCanvas = React.createRef();
this.playbackCanvas = React.createRef();
// Listeners
this.onKeyDown = this.onKeyDown.bind(this);
this.updateCanvasDimensions = this.updateCanvasDimensions.bind(this);
const now = Number(moment().format('x')) / 1000;
const updateTimerInterval = setInterval(this.timerUpdate, 1000);
@ -84,6 +101,19 @@ export class SessionRecording extends React.Component<Props, State> {
startTimestamp: now,
nowTimestamp: now,
updateTimerInterval,
// Initial width of 0 until bounds are located
canvasParams: {
width: 0,
height: 35,
barRadius: 15,
barWidth: 4,
barPadding: 3,
barColorInit: '#AFAFAF',
barColorPlay: '#FFFFFF',
maxBarHeight: 30,
minBarHeight: 3,
},
};
}
@ -93,8 +123,14 @@ export class SessionRecording extends React.Component<Props, State> {
this.initiateRecordingStream();
}
public componentDidMount() {
window.addEventListener('resize', this.updateCanvasDimensions);
this.updateCanvasDimensions();
}
public componentWillUnmount(){
clearInterval(this.state.updateTimerInterval);
window.removeEventListener('resize', this.updateCanvasDimensions);
}
public componentDidUpdate() {
@ -286,20 +322,51 @@ export class SessionRecording extends React.Component<Props, State> {
};
return audioElement;
}
const audioElement = this.state.audioElement || generateAudioElement();
if (!audioElement) return;
// Start playing recording
// FIXME VINCE: Prevent looping of playing
audioElement.play();
// Draw canvas
this.onPlaybackStream();
// Draw sweeping timeline
const drawSweepingTimeline = () => {
const { isPaused } = this.state;
const {
width,
height,
barColorPlay,
} = this.state.canvasParams;
const canvas = this.playbackCanvas.current;
if ( !canvas || isPaused ) return;
// Once audioElement is fully buffered, we get the true duration
let audioDuration = this.state.recordDuration
if (audioElement.duration !== Infinity) audioDuration = audioElement.duration;
const progress = width * (audioElement.currentTime / audioDuration);
console.log(`[details] Current Time:`, audioElement.currentTime);
console.log(`[details] Record Duration:`, audioDuration);
console.log(`[details] Audio element duration`, audioElement.duration);
const canvasContext = canvas.getContext(`2d`);
if (!canvasContext) return;
canvasContext.beginPath();
canvasContext.fillStyle = barColorPlay
canvasContext.globalCompositeOperation = 'source-atop';
canvasContext.fillRect(0, 0, progress, height);
// Pause audio when it reaches the end of the blob
if (audioElement.duration && audioElement.currentTime === audioElement.duration){
this.pauseAudio();
return;
}
requestAnimationFrame(drawSweepingTimeline);
}
this.setState({
audioElement,
@ -308,14 +375,20 @@ export class SessionRecording extends React.Component<Props, State> {
isPlaying: true,
});
// If end of audio reached, reset the position of the sweeping timeline
if (audioElement.duration && audioElement.currentTime === audioElement.duration){
this.initPlaybackView();
}
audioElement.play();
requestAnimationFrame(drawSweepingTimeline);
}
private pauseAudio() {
this.state.audioElement?.pause();
// STOP ANIMAION FRAME
// cancelAnimationFrame(playbackAnimationID);
this.setState({
isPlaying: false,
isPaused: true,
@ -380,7 +453,10 @@ export class SessionRecording extends React.Component<Props, State> {
// Start recording the stream
const media = new window.MediaRecorder(stream);
media.ondataavailable = (mediaBlob: any) => {
this.setState({mediaBlob});
this.setState({mediaBlob}, () => {
// Generate PCM waveform for playback
this.initPlaybackView();
});
};
media.start();
@ -399,34 +475,34 @@ export class SessionRecording extends React.Component<Props, State> {
const streamParams = {stream, media, input, processor};
this.setState({streamParams});
const {
width,
height,
barWidth,
barPadding,
barColorInit,
maxBarHeight,
minBarHeight
} = this.state.canvasParams;
// Array of volumes by frequency (not in Hz, arbitrary unit)
const freqTypedArray = new Uint8Array(analyser.frequencyBinCount);
analyser.getByteFrequencyData(freqTypedArray);
const freqArray = Array.from(freqTypedArray);
const VISUALISATION_WIDTH = this.visualisationRef.current?.clientWidth;
const maxVisualisationHeight = 30;
const minVisualisationHeight = 3;
// CANVAS CONTEXT
const drawRecordingCanvas = () => {
const canvas = this.visualisationCanvas.current;
const CANVAS_HEIGHT = 35;
const CANVAS_WIDTH = VISUALISATION_WIDTH || 600;
const barPadding = 3;
const barWidth = 4;
const numBars = CANVAS_WIDTH / (barPadding + barWidth);
const numBars = width / (barPadding + barWidth);
let volumeArray = freqArray.map(n => {
const maxVal = Math.max(...freqArray);
const initialHeight = maxVisualisationHeight * (n / maxVal);
const freqBarHeight = initialHeight > minVisualisationHeight
const initialHeight = maxBarHeight * (n / maxVal);
const freqBarHeight = initialHeight > minBarHeight
? initialHeight
: minVisualisationHeight;
: minBarHeight;
return freqBarHeight;
});
@ -440,25 +516,22 @@ export class SessionRecording extends React.Component<Props, State> {
// Chop off values which exceed the bounds of the container
volumeArray = volumeArray.slice(0, numBars);
canvas && (canvas.height = CANVAS_HEIGHT);
canvas && (canvas.width = CANVAS_WIDTH);
canvas && (canvas.height = height);
canvas && (canvas.width = width);
const canvasContext = canvas && (canvas.getContext(`2d`));
for (var i = 0; i < volumeArray.length; i++) {
const barHeight = Math.ceil(volumeArray[i]);
const offset_x = Math.ceil(i * (barWidth + barPadding));
const offset_y = Math.ceil((CANVAS_HEIGHT / 2 ) - (barHeight / 2 ));
const radius = 15;
const offset_y = Math.ceil((height / 2 ) - (barHeight / 2 ));
// FIXME VINCE - Globalise JS references to colors
canvasContext && (canvasContext.fillStyle = '#AFAFAF');
canvasContext && (canvasContext.fillStyle = barColorInit);
canvasContext && this.drawRoundedRect(
canvasContext,
offset_x,
offset_y,
barWidth,
barHeight,
radius,
);
}
}
@ -475,7 +548,7 @@ export class SessionRecording extends React.Component<Props, State> {
return error;
}
private compactPCM(array: Float32Array<number>, numGroups: number) {
private compactPCM(array: Float32Array, numGroups: number) {
// Takes an array of arbitary size and compresses it down into a smaller
// array, by grouping elements into bundles of groupSize and taking their
// average.
@ -503,15 +576,23 @@ export class SessionRecording extends React.Component<Props, State> {
return compacted;
}
private async onPlaybackStream() {
const VISUALISATION_WIDTH = this.playbackCanvas.current?.clientWidth;
const CANVAS_WIDTH = VISUALISATION_WIDTH || 600;
const barPadding = 3;
const barWidth = 4;
const numBars = CANVAS_WIDTH / (barPadding + barWidth);
private async initPlaybackView() {
const {
width,
height,
barWidth,
barPadding,
barColorInit,
maxBarHeight,
minBarHeight
} = this.state.canvasParams;
const numBars = width / (barPadding + barWidth);
//FIXME VINCE
// update numbars with animation so that changing width of screen
// accomodates
const startPlayingTimestamp = moment().format('x') / 1000;
// Then scan through audio file getting average volume per bar
// to display amplitude over time as a static image
const blob = this.state.mediaBlob.data;
@ -519,10 +600,9 @@ export class SessionRecording extends React.Component<Props, State> {
const arrayBuffer = await new Response(blob).arrayBuffer();
const audioContext = new window.AudioContext();
let audioDuration = 0;
audioContext.decodeAudioData(arrayBuffer, (buffer: AudioBuffer) => {
audioDuration = buffer.duration;
this.setState({recordDuration: buffer.duration});
// Get audio amplitude with PCM Data in Float32
// Grab single channel only to save compuation
const channelData = buffer.getChannelData(0);
@ -531,76 +611,57 @@ export class SessionRecording extends React.Component<Props, State> {
const pcmDataArrayNormalised = pcmDataArray.map(v => Math.abs(v));
// Prepare values for drawing to canvas
const maxVisualisationHeight = 30;
const minVisualisationHeight = 3;
const maxAmplitude = Math.max(...pcmDataArrayNormalised);
const barSizeArray = pcmDataArrayNormalised.map(amplitude => {
let barSize = maxVisualisationHeight * (amplitude / maxAmplitude);
let barSize = maxBarHeight * (amplitude / maxAmplitude);
// Prevent values that are too small
if (barSize < minVisualisationHeight){
barSize = minVisualisationHeight;
if (barSize < minBarHeight){
barSize = minBarHeight;
}
return barSize;
});
// CANVAS CONTEXT
let playbackAnimationID;
const drawPlaybackCanvas = () => {
const canvas = this.playbackCanvas.current;
const CANVAS_HEIGHT = 35;
canvas.height = CANVAS_HEIGHT;
canvas.width = CANVAS_WIDTH;
if (!canvas) return;
canvas.height = height;
canvas.width = width;
const canvasContext = canvas.getContext(`2d`);
if (!canvasContext) return;
for (let i = 0; i < barSizeArray.length; i++){
const barHeight = Math.ceil(barSizeArray[i]);
const offset_x = Math.ceil(i * (barWidth + barPadding));
const offset_y = Math.ceil((CANVAS_HEIGHT / 2 ) - (barHeight / 2 ));
const radius = 15;
const offset_y = Math.ceil((height / 2 ) - (barHeight / 2 ));
// FIXME VINCE - Globalise JS references to colors
canvasContext.fillStyle = '#AFAFAF';
canvasContext.fillStyle = barColorInit;
this.drawRoundedRect(
canvasContext,
offset_x,
offset_y,
barWidth,
barHeight,
radius,
);
}
// Draw sweeping timeline
const now = moment().format('x') / 1000;
const progress = CANVAS_WIDTH * ((now - startPlayingTimestamp) / audioDuration);
canvasContext.beginPath();
canvasContext.fillStyle = '#FFFFFF';
canvasContext.globalCompositeOperation = 'source-atop';
canvasContext.fillRect(0, 0, progress, CANVAS_HEIGHT);
playbackAnimationID = requestAnimationFrame(drawPlaybackCanvas);
}
requestAnimationFrame(drawPlaybackCanvas);
drawPlaybackCanvas();
});
// FIXME VINCE SET ASUIDO DURATION TO STATE
await this.setState({recordDuration: audioDuration});
// this.state.isPlaying && requestAnimationFrame(drawPlaybackCanvas);
}
private drawRoundedRect (ctx: CanvasRenderingContext2D, x: number, y: number, w: number, h: number, r: number) {
private drawRoundedRect (ctx: CanvasRenderingContext2D, x: number, y: number, h: number) {
let r = this.state.canvasParams.barRadius;
const w = this.state.canvasParams.barWidth;
if (w < 2 * r) r = w / 2;
if (h < 2 * r) r = h / 2;
ctx.beginPath();
@ -613,6 +674,15 @@ export class SessionRecording extends React.Component<Props, State> {
ctx.fill();
}
private updateCanvasDimensions(){
const canvas = this.visualisationCanvas.current || this.playbackCanvas.current;
const width = canvas?.clientWidth || 0;
this.setState({
canvasParams: {...this.state.canvasParams, width}
});
}
private onKeyDown(event: any) {
if (event.key === 'Escape') {
// FIXME VINCE: Add SessionConfirm

13
yarn.lock
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@ -8472,11 +8472,6 @@ react-error-overlay@^4.0.1:
resolved "https://registry.yarnpkg.com/react-error-overlay/-/react-error-overlay-4.0.1.tgz#417addb0814a90f3a7082eacba7cee588d00da89"
integrity sha512-xXUbDAZkU08aAkjtUvldqbvI04ogv+a1XdHxvYuHPYKIVk/42BIOD0zSKTHAWV4+gDy3yGm283z2072rA2gdtw==
react-ga@^2.2.0:
version "2.7.0"
resolved "https://registry.yarnpkg.com/react-ga/-/react-ga-2.7.0.tgz#24328f157f31e8cffbf4de74a3396536679d8d7c"
integrity sha512-AjC7UOZMvygrWTc2hKxTDvlMXEtbmA0IgJjmkhgmQQ3RkXrWR11xEagLGFGaNyaPnmg24oaIiaNPnEoftUhfXA==
react-group@^1.0.5:
version "1.0.6"
resolved "https://registry.yarnpkg.com/react-group/-/react-group-1.0.6.tgz#8dd7c00c3b35d05ce164021458bb07d580e3001a"
@ -8506,14 +8501,6 @@ react-lifecycles-compat@^3.0.4:
resolved "https://registry.yarnpkg.com/react-lifecycles-compat/-/react-lifecycles-compat-3.0.4.tgz#4f1a273afdfc8f3488a8c516bfda78f872352362"
integrity sha512-fBASbA6LnOU9dOU2eW7aQ8xmYBSXUIWr+UmF9b1efZBazGNO+rcXT/icdKnYm2pTwcRylVUYwW7H1PHfLekVzA==
react-mic@^12.4.1:
version "12.4.1"
resolved "https://registry.yarnpkg.com/react-mic/-/react-mic-12.4.1.tgz#6476a321ccd3babc61ebb12319b0fc0db4ca30c3"
integrity sha512-l580F9Mv6NRslSQj+80azx2rr/5OjWISEsjXx2GXBXcLvnT9vGeSYHzFVwDhGBjo/cj25AzXDg+rSp4Bz/qS2w==
dependencies:
prop-types "^15.5.10"
react-ga "^2.2.0"
react-portal@^4.2.0:
version "4.2.0"
resolved "https://registry.yarnpkg.com/react-portal/-/react-portal-4.2.0.tgz#5400831cdb0ae64dccb8128121cf076089ab1afd"

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