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This commit is contained in:
Michael Weimann 2022-12-12 12:24:14 +01:00
parent 1cac306093
commit 526645c791
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1576 changed files with 65385 additions and 62478 deletions
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45
src/audio/Playback.ts
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@ -45,7 +45,7 @@ export const DEFAULT_WAVEFORM = arraySeed(0, PLAYBACK_WAVEFORM_SAMPLES);
function makePlaybackWaveform(input: number[]): number[] {
// First, convert negative amplitudes to positive so we don't detect zero as "noisy".
const noiseWaveform = input.map(v => Math.abs(v));
const noiseWaveform = input.map((v) => Math.abs(v));
// Then, we'll resample the waveform using a smoothing approach so we can keep the same rough shape.
// We also rescale the waveform to be 0-1 so we end up with a clamped waveform to rely upon.
@ -174,7 +174,8 @@ export class Playback extends EventEmitter implements IDestroyable, PlaybackInte
// Overall, the point of this is to avoid memory-related issues due to storing a massive
// audio buffer in memory, as that can balloon to far greater than the input buffer's
// byte length.
if (this.buf.byteLength > 5 * 1024 * 1024) { // 5mb
if (this.buf.byteLength > 5 * 1024 * 1024) {
// 5mb
logger.log("Audio file too large: processing through <audio /> element");
this.element = document.createElement("AUDIO") as HTMLAudioElement;
const prom = new Promise((resolve, reject) => {
@ -186,25 +187,33 @@ export class Playback extends EventEmitter implements IDestroyable, PlaybackInte
} else {
// Safari compat: promise API not supported on this function
this.audioBuf = await new Promise((resolve, reject) => {
this.context.decodeAudioData(this.buf, b => resolve(b), async e => {
try {
// This error handler is largely for Safari as well, which doesn't support Opus/Ogg
// very well.
logger.error("Error decoding recording: ", e);
logger.warn("Trying to re-encode to WAV instead...");
this.context.decodeAudioData(
this.buf,
(b) => resolve(b),
async (e) => {
try {
// This error handler is largely for Safari as well, which doesn't support Opus/Ogg
// very well.
logger.error("Error decoding recording: ", e);
logger.warn("Trying to re-encode to WAV instead...");
const wav = await decodeOgg(this.buf);
const wav = await decodeOgg(this.buf);
// noinspection ES6MissingAwait - not needed when using callbacks
this.context.decodeAudioData(wav, b => resolve(b), e => {
logger.error("Still failed to decode recording: ", e);
// noinspection ES6MissingAwait - not needed when using callbacks
this.context.decodeAudioData(
wav,
(b) => resolve(b),
(e) => {
logger.error("Still failed to decode recording: ", e);
reject(e);
},
);
} catch (e) {
logger.error("Caught decoding error:", e);
reject(e);
});
} catch (e) {
logger.error("Caught decoding error:", e);
reject(e);
}
});
}
},
);
});
// Update the waveform to the real waveform once we have channel data to use. We don't