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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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42
src/audio/compat.ts
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@ -15,9 +15,9 @@ limitations under the License.
*/
// @ts-ignore - we know that this is not a module. We're looking for a path.
import decoderWasmPath from 'opus-recorder/dist/decoderWorker.min.wasm';
import wavEncoderPath from 'opus-recorder/dist/waveWorker.min.js';
import decoderPath from 'opus-recorder/dist/decoderWorker.min.js';
import decoderWasmPath from "opus-recorder/dist/decoderWorker.min.wasm";
import wavEncoderPath from "opus-recorder/dist/waveWorker.min.js";
import decoderPath from "opus-recorder/dist/decoderWorker.min.js";
import { logger } from "matrix-js-sdk/src/logger";
import { SAMPLE_RATE } from "./VoiceRecording";
@ -38,46 +38,54 @@ export function createAudioContext(opts?: AudioContextOptions): AudioContext {
export function decodeOgg(audioBuffer: ArrayBuffer): Promise<ArrayBuffer> {
// Condensed version of decoder example, using a promise:
// https://github.com/chris-rudmin/opus-recorder/blob/master/example/decoder.html
return new Promise((resolve) => { // no reject because the workers don't seem to have a fail path
return new Promise((resolve) => {
// no reject because the workers don't seem to have a fail path
logger.log("Decoder WASM path: " + decoderWasmPath); // so we use the variable (avoid tree shake)
const typedArray = new Uint8Array(audioBuffer);
const decoderWorker = new Worker(decoderPath);
const wavWorker = new Worker(wavEncoderPath);
decoderWorker.postMessage({
command: 'init',
command: "init",
decoderSampleRate: SAMPLE_RATE,
outputBufferSampleRate: SAMPLE_RATE,
});
wavWorker.postMessage({
command: 'init',
command: "init",
wavBitDepth: 24, // standard for 48khz (SAMPLE_RATE)
wavSampleRate: SAMPLE_RATE,
});
decoderWorker.onmessage = (ev) => {
if (ev.data === null) { // null == done
wavWorker.postMessage({ command: 'done' });
if (ev.data === null) {
// null == done
wavWorker.postMessage({ command: "done" });
return;
}
wavWorker.postMessage({
command: 'encode',
buffers: ev.data,
}, ev.data.map(b => b.buffer));
wavWorker.postMessage(
{
command: "encode",
buffers: ev.data,
},
ev.data.map((b) => b.buffer),
);
};
wavWorker.onmessage = (ev) => {
if (ev.data.message === 'page') {
if (ev.data.message === "page") {
// The encoding comes through as a single page
resolve(new Blob([ev.data.page], { type: "audio/wav" }).arrayBuffer());
}
};
decoderWorker.postMessage({
command: 'decode',
pages: typedArray,
}, [typedArray.buffer]);
decoderWorker.postMessage(
{
command: "decode",
pages: typedArray,
},
[typedArray.buffer],
);
});
}