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Migrate Ogg demuxer to new packet system, improve Ogg demuxer performance

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This commit is contained in:
Vanilagy
2025-12-22 22:52:26 +01:00
parent 0768f6137c
commit bc1511a201
4 changed files with 249 additions and 142 deletions
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test/node/demux.test.ts
+43 -3
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@@ -3,7 +3,7 @@ import { Input } from '../../src/input.js';
import { BufferSource, FilePathSource } from '../../src/source.js';
import path from 'node:path';
import fs from 'node:fs';
import { ADTS, ALL_FORMATS, MP3, MP4, QTFF, WAVE, WEBM } from '../../src/input-format.js';
import { ADTS, ALL_FORMATS, MP3, MP4, OGG, QTFF, WAVE, WEBM } from '../../src/input-format.js';
import { PacketReader } from '../../src/cursors.js';
import { InputAudioTrack, InputTrack } from '../../src/input-track.js';
import { assert } from '../../src/misc.js';
@@ -50,6 +50,9 @@ const testBasicPacketReading = async (track: InputTrack) => {
const testSyncPacketReading = (track: InputTrack) => {
const reader = new PacketReader(track);
const seeked = reader.readAt(1) as EncodedPacket | null;
expect(seeked).toBeInstanceOf(EncodedPacket);
let current = reader.readFirst() as EncodedPacket | null;
expect(current).toBeInstanceOf(EncodedPacket);
@@ -261,7 +264,7 @@ test('ADTS demuxing', async () => {
await testBasicPacketReading(audioTrack);
const duration = await audioTrack.computeDuration();
expect(duration).toBeGreaterThan(0);
expect(duration).toBeCloseTo(4.992);
});
test('ADTS sync reading', async () => {
@@ -274,5 +277,42 @@ test('ADTS sync reading', async () => {
assert(audioTrack);
const count = testSyncPacketReading(audioTrack);
expect(count).toBeGreaterThan(0);
expect(count).toBe(234);
});
test('Ogg demuxing', async () => {
using input = new Input({
source: new FilePathSource(path.join(__dirname, '../public/beach-party.ogg')),
formats: ALL_FORMATS,
});
expect(await input.getFormat()).toBe(OGG);
expect(await input.getMimeType()).toBe('audio/ogg; codecs="vorbis"');
const tracks = await input.getTracks();
expect(tracks).toHaveLength(1);
const audioTrack = tracks[0] as InputAudioTrack;
expect(audioTrack).toBeInstanceOf(InputAudioTrack);
expect(audioTrack.codec).toBe('vorbis');
expect(audioTrack.numberOfChannels).toBeGreaterThan(0);
expect(audioTrack.sampleRate).toBeGreaterThan(0);
await testBasicPacketReading(audioTrack);
const duration = await audioTrack.computeDuration();
expect(duration).toBeCloseTo(57.325714285714284);
});
test('Ogg sync reading', async () => {
using input = new Input({
source: new BufferSource(fs.readFileSync(path.join(__dirname, '../public/beach-party.ogg'))),
formats: ALL_FORMATS,
});
const audioTrack = await input.getPrimaryAudioTrack();
assert(audioTrack);
const count = testSyncPacketReading(audioTrack);
expect(count).toBe(5041);
});