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Migrate FLAC demuxer to new packet system, move computeDuration impl to Input

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This commit is contained in:
Vanilagy
2025-12-22 23:16:05 +01:00
parent bc1511a201
commit 4f8c8836ec
4 changed files with 172 additions and 126 deletions
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test/node/demux.test.ts
+51 -14
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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, OGG, QTFF, WAVE, WEBM } from '../../src/input-format.js';
import { ADTS, ALL_FORMATS, FLAC, 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';
@@ -88,6 +88,19 @@ test('Regular ISOBMFF demuxing', async () => {
expect(await input.computeDuration()).toBeCloseTo(5.041666666666667);
});
test('Regular ISOBMFF sync reading', async () => {
using input = new Input({
source: new BufferSource(fs.readFileSync(path.join(__dirname, '../public/trim-buck-bunny.mov'))),
formats: ALL_FORMATS,
});
const videoTrack = await input.getPrimaryVideoTrack();
assert(videoTrack);
const count = testSyncPacketReading(videoTrack);
expect(count).toBe(121);
});
test('Fragmented ISOBMFF demuxing', async () => {
using input = new Input({
source: new FilePathSource(path.join(__dirname, '../public/frag-buck-bunny.mp4')),
@@ -108,19 +121,6 @@ test('Fragmented ISOBMFF demuxing', async () => {
expect(await input.computeDuration()).toBeCloseTo(5);
});
test('Regular ISOBMFF sync reading', async () => {
using input = new Input({
source: new BufferSource(fs.readFileSync(path.join(__dirname, '../public/trim-buck-bunny.mov'))),
formats: ALL_FORMATS,
});
const videoTrack = await input.getPrimaryVideoTrack();
assert(videoTrack);
const count = testSyncPacketReading(videoTrack);
expect(count).toBe(121);
});
test('Fragmented ISOBMFF sync reading', async () => {
using input = new Input({
source: new BufferSource(fs.readFileSync(path.join(__dirname, '../public/frag-buck-bunny.mp4'))),
@@ -316,3 +316,40 @@ test('Ogg sync reading', async () => {
const count = testSyncPacketReading(audioTrack);
expect(count).toBe(5041);
});
test('FLAC demuxing', async () => {
using input = new Input({
source: new FilePathSource(path.join(__dirname, '../public/sample.flac')),
formats: ALL_FORMATS,
});
expect(await input.getFormat()).toBe(FLAC);
expect(await input.getMimeType()).toBe('audio/flac');
const tracks = await input.getTracks();
expect(tracks).toHaveLength(1);
const audioTrack = tracks[0] as InputAudioTrack;
expect(audioTrack).toBeInstanceOf(InputAudioTrack);
expect(audioTrack.codec).toBe('flac');
expect(audioTrack.numberOfChannels).toBeGreaterThan(0);
expect(audioTrack.sampleRate).toBeGreaterThan(0);
await testBasicPacketReading(audioTrack);
const duration = await audioTrack.computeDuration();
expect(duration).toBeCloseTo(19.71428571428571);
});
test('FLAC sync reading', async () => {
using input = new Input({
source: new BufferSource(fs.readFileSync(path.join(__dirname, '../public/sample.flac'))),
formats: ALL_FORMATS,
});
const audioTrack = await input.getPrimaryAudioTrack();
assert(audioTrack);
const count = testSyncPacketReading(audioTrack);
expect(count).toBe(213);
});