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Migrate WAVE demuxer to new packet system

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This commit is contained in:
Vanilagy
2025-12-21 19:59:42 +01:00
parent 3285d5ea7d
commit b2c86ec4ba
3 changed files with 105 additions and 59 deletions
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test/node/demux.test.ts
+51 -19
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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, WEBM } from '../../src/input-format.js';
import { 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';
@@ -47,6 +47,24 @@ const testBasicPacketReading = async (track: InputTrack) => {
expect(afterLast).toBe(null);
};
const testSyncPacketReading = (track: InputTrack) => {
const reader = new PacketReader(track);
let current = reader.readFirst() as EncodedPacket | null;
expect(current).toBeInstanceOf(EncodedPacket);
let count = 0;
while (current) {
current = reader.readNext(current) as EncodedPacket | null;
expect(current instanceof EncodedPacket || current === null).toBe(true);
count++;
}
expect(count).toBeGreaterThan(0);
return count;
};
test('Regular ISOBMFF demuxing', async () => {
using input = new Input({
source: new FilePathSource(path.join(__dirname, '../public/trim-buck-bunny.mov')),
@@ -177,24 +195,6 @@ test('MP3 demuxing', async () => {
expect(duration).toBeGreaterThan(0);
});
const testSyncPacketReading = (track: InputTrack) => {
const reader = new PacketReader(track);
let current = reader.readFirst() as EncodedPacket | null;
expect(current).toBeInstanceOf(EncodedPacket);
let count = 0;
while (current) {
current = reader.readNext(current) as EncodedPacket | null;
expect(current instanceof EncodedPacket || current === null).toBe(true);
count++;
}
expect(count).toBeGreaterThan(0);
return count;
};
test('MP3 sync reading', async () => {
using input = new Input({
source: new BufferSource(fs.readFileSync(path.join(__dirname, '../public/AudacityTest1.mp3'))),
@@ -207,3 +207,35 @@ test('MP3 sync reading', async () => {
const count = testSyncPacketReading(audioTrack);
expect(count).toBe(475);
});
test('WAVE demuxing', async () => {
using input = new Input({
source: new FilePathSource(path.join(__dirname, '../public/glitch-hop-is-dead.wav')),
formats: ALL_FORMATS,
});
expect(await input.getFormat()).toBe(WAVE);
const tracks = await input.getTracks();
expect(tracks).toHaveLength(1);
const audioTrack = await input.getPrimaryAudioTrack();
assert(audioTrack);
await testBasicPacketReading(audioTrack);
expect(await input.computeDuration()).toBeCloseTo(9.637188208616779);
});
test('WAVE sync reading', async () => {
using input = new Input({
source: new BufferSource(fs.readFileSync(path.join(__dirname, '../public/glitch-hop-is-dead.wav'))),
formats: ALL_FORMATS,
});
const audioTrack = await input.getPrimaryAudioTrack();
assert(audioTrack);
const count = testSyncPacketReading(audioTrack);
expect(count).toBe(208);
});