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Migrate ADTS demuxer to new packet system

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This commit is contained in:
Vanilagy
2025-12-21 20:23:39 +01:00
parent b2c86ec4ba
commit 0768f6137c
4 changed files with 147 additions and 95 deletions
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test/node/demux.test.ts
+38 -1
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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 { ALL_FORMATS, MP3, MP4, QTFF, WAVE, WEBM } from '../../src/input-format.js';
import { ADTS, ALL_FORMATS, MP3, MP4, 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';
@@ -239,3 +239,40 @@ test('WAVE sync reading', async () => {
const count = testSyncPacketReading(audioTrack);
expect(count).toBe(208);
});
test('ADTS demuxing', async () => {
using input = new Input({
source: new FilePathSource(path.join(__dirname, '../public/trim-buck-bunny.aac')),
formats: ALL_FORMATS,
});
expect(await input.getFormat()).toBe(ADTS);
expect(await input.getMimeType()).toBe('audio/aac');
const tracks = await input.getTracks();
expect(tracks).toHaveLength(1);
const audioTrack = tracks[0] as InputAudioTrack;
expect(audioTrack).toBeInstanceOf(InputAudioTrack);
expect(audioTrack.codec).toBe('aac');
expect(audioTrack.numberOfChannels).toBeGreaterThan(0);
expect(audioTrack.sampleRate).toBeGreaterThan(0);
await testBasicPacketReading(audioTrack);
const duration = await audioTrack.computeDuration();
expect(duration).toBeGreaterThan(0);
});
test('ADTS sync reading', async () => {
using input = new Input({
source: new BufferSource(fs.readFileSync(path.join(__dirname, '../public/trim-buck-bunny.aac'))),
formats: ALL_FORMATS,
});
const audioTrack = await input.getPrimaryAudioTrack();
assert(audioTrack);
const count = testSyncPacketReading(audioTrack);
expect(count).toBeGreaterThan(0);
});