0.0.27 • Published 1 year ago
libopusenc v0.0.27
node-opusenc
Description
Entirely synchronous API to create .ogg files encoded using libopus library. It supports several sample rates (16000,48000 and more.).
Usage
import { Comments, Encoder } from "node-opusenc";
const comments = new Comments();
const enc = new Encoder();
enc.createFile(comments, path.resolve(__dirname, "test1.ogg"), 48000, 1, 0);
const pcm = child_process.spawn("arecord", [
"-f",
"FLOAT_LE",
"-c",
"1",
"-r",
"48000",
"-d",
"4",
]);
pcm.stdout.on("data", (chunk) => {
assert.strict.ok(Buffer.isBuffer(chunk));
const samples = chunk.byteLength / Float32Array.BYTES_PER_ELEMENT;
const buf = new Float32Array(samples);
buf.set(new Float32Array(chunk.buffer, chunk.byteOffset, samples));
enc.writeFloat(buf, samples);
});
return new Promise<void>((resolve) => {
pcm.stdout.on("exit", (code) => {
assert.strict.ok(code === 0);
enc.drain();
resolve();
});
});
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