rebuilt with the webm fix & code splitting
This commit is contained in:
or-else
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||||
|
||||
|
||||
const BUFFER_SIZE = 256;
|
||||
const CANVAS_UPSCALING = 2.0;
|
||||
const LINE_WIDTH = 3 * CANVAS_UPSCALING;
|
||||
const SPACING = 2 * CANVAS_UPSCALING;
|
||||
const MILLIS_PER_BAR = 100;
|
||||
const BAR_COLOR = '#BBBD';
|
||||
const BAR_SCALE = 64.0;
|
||||
const VISUALIZATION_BARS = 96;
|
||||
const MAX_SAMPLES_PER_BAR = 10;
|
||||
|
||||
const AUDIO_MIME_TYPE = 'audio/webm';
|
||||
class AudioRecorder extends (react__WEBPACK_IMPORTED_MODULE_0___default().PureComponent) {
|
||||
constructor(props) {
|
||||
super(props);
|
||||
this.state = {
|
||||
enabled: true,
|
||||
audioRecord: null,
|
||||
recording: true,
|
||||
paused: false,
|
||||
duration: '0:00',
|
||||
blobUrl: null,
|
||||
preview: null
|
||||
};
|
||||
this.visualize = this.visualize.bind(this);
|
||||
this.initMediaRecording = this.initMediaRecording.bind(this);
|
||||
this.initCanvas = this.initCanvas.bind(this);
|
||||
this.getRecording = this.getRecording.bind(this);
|
||||
this.cleanUp = this.cleanUp.bind(this);
|
||||
this.handleResume = this.handleResume.bind(this);
|
||||
this.handlePause = this.handlePause.bind(this);
|
||||
this.handleDelete = this.handleDelete.bind(this);
|
||||
this.handleDone = this.handleDone.bind(this);
|
||||
this.durationMillis = 0;
|
||||
this.startedOn = null;
|
||||
this.viewBuffer = [];
|
||||
this.canvasRef = react__WEBPACK_IMPORTED_MODULE_0___default().createRef();
|
||||
}
|
||||
componentDidMount() {
|
||||
this.stream = null;
|
||||
this.mediaRecorder = null;
|
||||
this.audioContext = null;
|
||||
this.audioInput = null;
|
||||
this.analyser = null;
|
||||
this.audioChunks = [];
|
||||
|
||||
try {
|
||||
navigator.mediaDevices.getUserMedia({
|
||||
audio: true,
|
||||
video: false
|
||||
}).then(this.initMediaRecording, this.props.onError);
|
||||
} catch (err) {
|
||||
this.props.onError(err);
|
||||
}
|
||||
}
|
||||
componentWillUnmount() {
|
||||
this.startedOn = null;
|
||||
if (this.stream) {
|
||||
this.cleanUp();
|
||||
}
|
||||
}
|
||||
|
||||
visualize() {
|
||||
this.initCanvas();
|
||||
const pcmData = new Uint8Array(this.analyser.frequencyBinCount);
|
||||
const width = this.canvasWidth;
|
||||
const height = this.canvasHeight;
|
||||
const viewLength = width / (LINE_WIDTH + SPACING) | 0;
|
||||
const viewDuration = MILLIS_PER_BAR * viewLength;
|
||||
this.canvasContext.lineWidth = LINE_WIDTH;
|
||||
this.canvasContext.strokeStyle = BAR_COLOR;
|
||||
let prevBarCount = 0;
|
||||
let volume = 0.0;
|
||||
let countPerBar = 0;
|
||||
const drawFrame = _ => {
|
||||
if (!this.startedOn) {
|
||||
return;
|
||||
}
|
||||
window.requestAnimationFrame(drawFrame);
|
||||
const duration = this.durationMillis + (Date.now() - this.startedOn);
|
||||
this.setState({
|
||||
duration: (0,_lib_strformat__WEBPACK_IMPORTED_MODULE_4__.secondsToTime)(duration / 1000)
|
||||
});
|
||||
|
||||
if (duration > _config_js__WEBPACK_IMPORTED_MODULE_5__.MAX_DURATION) {
|
||||
this.startedOn = null;
|
||||
this.mediaRecorder.pause();
|
||||
this.durationMillis += Date.now() - this.startedOn;
|
||||
this.setState({
|
||||
enabled: false,
|
||||
recording: false,
|
||||
duration: (0,_lib_strformat__WEBPACK_IMPORTED_MODULE_4__.secondsToTime)(this.durationMillis / 1000)
|
||||
});
|
||||
}
|
||||
|
||||
this.analyser.getByteTimeDomainData(pcmData);
|
||||
let amp = 0.0;
|
||||
for (const amplitude of pcmData) {
|
||||
amp += (amplitude - 127) ** 2;
|
||||
}
|
||||
|
||||
volume += Math.sqrt(amp / pcmData.length);
|
||||
countPerBar++;
|
||||
let barCount = duration / MILLIS_PER_BAR | 0;
|
||||
const dx = viewDuration > duration ? 0 : (duration - MILLIS_PER_BAR * barCount) / MILLIS_PER_BAR * (LINE_WIDTH + SPACING);
|
||||
if (prevBarCount != barCount) {
|
||||
prevBarCount = barCount;
|
||||
this.viewBuffer.push(volume / countPerBar);
|
||||
volume = 0.0;
|
||||
countPerBar = 0;
|
||||
if (this.viewBuffer.length > viewLength) {
|
||||
this.viewBuffer.shift();
|
||||
}
|
||||
}
|
||||
|
||||
this.canvasContext.clearRect(0, 0, width, height);
|
||||
|
||||
this.canvasContext.beginPath();
|
||||
for (let i = 0; i < this.viewBuffer.length; i++) {
|
||||
let x = i * (LINE_WIDTH + SPACING) - dx;
|
||||
let y = Math.min(this.viewBuffer[i] / BAR_SCALE, 0.9) * height;
|
||||
this.canvasContext.moveTo(x, (height - y) * 0.5);
|
||||
this.canvasContext.lineTo(x, height * 0.5 + y * 0.5);
|
||||
}
|
||||
this.canvasContext.stroke();
|
||||
};
|
||||
drawFrame();
|
||||
}
|
||||
handlePause(e) {
|
||||
e.preventDefault();
|
||||
this.mediaRecorder.pause();
|
||||
this.mediaRecorder.requestData();
|
||||
this.durationMillis += Date.now() - this.startedOn;
|
||||
this.startedOn = null;
|
||||
this.setState({
|
||||
recording: false
|
||||
});
|
||||
}
|
||||
handleResume(e) {
|
||||
e.preventDefault();
|
||||
if (this.state.enabled) {
|
||||
this.startedOn = Date.now();
|
||||
this.mediaRecorder.resume();
|
||||
this.setState({
|
||||
recording: true
|
||||
}, this.visualize);
|
||||
}
|
||||
}
|
||||
handleDelete(e) {
|
||||
e.preventDefault();
|
||||
this.durationMillis = 0;
|
||||
this.startedOn = null;
|
||||
this.mediaRecorder.stop();
|
||||
this.cleanUp();
|
||||
this.setState({
|
||||
recording: false
|
||||
});
|
||||
}
|
||||
handleDone(e) {
|
||||
e.preventDefault();
|
||||
this.setState({
|
||||
recording: false
|
||||
});
|
||||
if (this.startedOn) {
|
||||
this.durationMillis += Date.now() - this.startedOn;
|
||||
this.startedOn = null;
|
||||
}
|
||||
if (this.mediaRecorder) {
|
||||
this.mediaRecorder.stop();
|
||||
}
|
||||
}
|
||||
initCanvas() {
|
||||
this.canvasRef.current.width = this.canvasRef.current.offsetWidth * CANVAS_UPSCALING;
|
||||
this.canvasRef.current.height = this.canvasRef.current.offsetHeight * CANVAS_UPSCALING;
|
||||
this.canvasContext = this.canvasRef.current.getContext('2d');
|
||||
this.canvasContext.lineCap = 'round';
|
||||
this.canvasContext.translate(0.5, 0.5);
|
||||
this.canvasWidth = this.canvasRef.current.width;
|
||||
this.canvasHeight = this.canvasRef.current.height;
|
||||
}
|
||||
initMediaRecording(stream) {
|
||||
this.stream = stream;
|
||||
this.mediaRecorder = new MediaRecorder(stream, {
|
||||
mimeType: AUDIO_MIME_TYPE,
|
||||
audioBitsPerSecond: 24_000
|
||||
});
|
||||
|
||||
this.audioContext = new AudioContext();
|
||||
this.audioInput = this.audioContext.createMediaStreamSource(stream);
|
||||
this.analyser = this.audioContext.createAnalyser();
|
||||
this.analyser.fftSize = BUFFER_SIZE;
|
||||
this.audioInput.connect(this.analyser);
|
||||
this.mediaRecorder.onstop = _ => {
|
||||
if (this.durationMillis > _config_js__WEBPACK_IMPORTED_MODULE_5__.MIN_DURATION) {
|
||||
this.getRecording(this.mediaRecorder.mimeType, this.durationMillis).then(result => this.props.onFinished(result.url, result.preview, this.durationMillis));
|
||||
} else {
|
||||
this.props.onDeleted();
|
||||
}
|
||||
this.cleanUp();
|
||||
};
|
||||
this.mediaRecorder.ondataavailable = e => {
|
||||
if (e.data.size > 0) {
|
||||
this.audioChunks.push(e.data);
|
||||
}
|
||||
if (this.mediaRecorder.state != 'inactive') {
|
||||
this.getRecording(this.mediaRecorder.mimeType).then(result => {
|
||||
this.setState({
|
||||
blobUrl: result.url,
|
||||
preview: result.preview
|
||||
});
|
||||
});
|
||||
}
|
||||
};
|
||||
this.durationMillis = 0;
|
||||
this.startedOn = Date.now();
|
||||
this.mediaRecorder.start();
|
||||
this.visualize();
|
||||
}
|
||||
|
||||
getRecording(mimeType, duration) {
|
||||
mimeType = mimeType || AUDIO_MIME_TYPE;
|
||||
let blob = new Blob(this.audioChunks, {
|
||||
type: mimeType
|
||||
});
|
||||
return webm_duration_fix__WEBPACK_IMPORTED_MODULE_2___default()(blob, mimeType).then(fixedBlob => {
|
||||
blob = fixedBlob;
|
||||
return fixedBlob.arrayBuffer();
|
||||
}).then(arrayBuff => this.audioContext.decodeAudioData(arrayBuff)).then(decoded => this.createPreview(decoded)).then(preview => ({
|
||||
url: window.URL.createObjectURL(blob),
|
||||
preview: (0,_lib_blob_helpers_js__WEBPACK_IMPORTED_MODULE_3__.intArrayToBase64)(preview)
|
||||
}));
|
||||
}
|
||||
|
||||
createPreview(audio) {
|
||||
const data = audio.getChannelData(0);
|
||||
const viewLength = Math.min(data.length, VISUALIZATION_BARS);
|
||||
const totalSPB = data.length / viewLength | 0;
|
||||
const samplingRate = Math.max(1, totalSPB / MAX_SAMPLES_PER_BAR | 0);
|
||||
let buffer = [];
|
||||
let max = -1;
|
||||
for (let i = 0; i < viewLength; i++) {
|
||||
let amplitude = 0;
|
||||
let count = 0;
|
||||
for (let j = 0; j < totalSPB; j += samplingRate) {
|
||||
amplitude += data[totalSPB * i + j] ** 2;
|
||||
count++;
|
||||
}
|
||||
const val = Math.sqrt(amplitude / count);
|
||||
buffer.push(val);
|
||||
max = Math.max(max, val);
|
||||
}
|
||||
if (max > 0) {
|
||||
buffer = buffer.map(a => 100 * a / max | 0);
|
||||
}
|
||||
return buffer;
|
||||
}
|
||||
cleanUp() {
|
||||
this.audioInput.disconnect();
|
||||
this.stream.getTracks().forEach(track => track.stop());
|
||||
}
|
||||
render() {
|
||||
const resumeClass = 'material-icons ' + (this.state.enabled ? 'red' : 'gray');
|
||||
return react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
|
||||
className: "audio"
|
||||
}, react__WEBPACK_IMPORTED_MODULE_0___default().createElement("a", {
|
||||
href: "#",
|
||||
onClick: this.handleDelete,
|
||||
title: "Delete"
|
||||
}, react__WEBPACK_IMPORTED_MODULE_0___default().createElement("i", {
|
||||
className: "material-icons gray"
|
||||
}, "delete_outline")), this.state.recording ? react__WEBPACK_IMPORTED_MODULE_0___default().createElement("canvas", {
|
||||
ref: this.canvasRef
|
||||
}) : react__WEBPACK_IMPORTED_MODULE_0___default().createElement(_audio_player_jsx__WEBPACK_IMPORTED_MODULE_1__["default"], {
|
||||
src: this.state.blobUrl,
|
||||
preview: this.state.preview,
|
||||
duration: this.durationMillis,
|
||||
short: true
|
||||
}), react__WEBPACK_IMPORTED_MODULE_0___default().createElement("div", {
|
||||
className: "duration"
|
||||
}, this.state.duration), this.state.recording ? react__WEBPACK_IMPORTED_MODULE_0___default().createElement("a", {
|
||||
href: "#",
|
||||
onClick: this.handlePause,
|
||||
title: "Pause"
|
||||
}, react__WEBPACK_IMPORTED_MODULE_0___default().createElement("i", {
|
||||
className: "material-icons"
|
||||
}, "pause_circle_outline")) : react__WEBPACK_IMPORTED_MODULE_0___default().createElement("a", {
|
||||
href: "#",
|
||||
onClick: this.handleResume,
|
||||
title: "Resume"
|
||||
}, react__WEBPACK_IMPORTED_MODULE_0___default().createElement("i", {
|
||||
className: resumeClass
|
||||
}, "radio_button_checked")), react__WEBPACK_IMPORTED_MODULE_0___default().createElement("a", {
|
||||
href: "#",
|
||||
onClick: this.handleDone,
|
||||
title: "Send"
|
||||
}, react__WEBPACK_IMPORTED_MODULE_0___default().createElement("i", {
|
||||
className: "material-icons"
|
||||
}, "send")));
|
||||
}
|
||||
}
|
||||
|
||||
/***/ })
|
||||
|
||||
}]);
|
||||
//# sourceMappingURL=src_widgets_audio-recorder_jsx.dev.js.map
|
||||
File diff suppressed because one or more lines are too long
+111
-64
File diff suppressed because one or more lines are too long
+1
-1
File diff suppressed because one or more lines are too long
File diff suppressed because it is too large
Load Diff
File diff suppressed because one or more lines are too long
Reference in New Issue
Block a user