arcodange/mediabunny
1
0
Fork 0
mirror of https://github.com/arcodange-org/mediabunny.git synced 2026-09-27 10:53:50 +02:00
Code Issues Packages Projects Releases Wiki Activity

Fix HLS muxer audio segmentation bug, fix conversion tests failing in CI

Browse Source
This commit is contained in:
Vanilagy
2026-04-14 21:40:07 +02:00
parent 6410ea9f42
commit a3767af141
4 changed files with 90 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files
test/browser/conversion.test.ts
+28 -22
View File
@@ -8,10 +8,11 @@ import { BufferTarget, PathedTarget } from '../../src/target.js';
import { Conversion } from '../../src/conversion.js';
import { assert } from '../../src/misc.js';
import { InputVideoTrack } from '../../src/input-track.js';
import { AudioBufferSource, CanvasSource } from '../../src/media-source.js';
import { CanvasSource, EncodedAudioPacketSource } from '../../src/media-source.js';
import { QUALITY_HIGH } from '../../src/encode.js';
import { EncodedPacket } from '../../src/packet.js';
test('Rotation is baked-in when rerendering', async () => {
test('Rotation is baked in when rerendering', async () => {
using input = new Input({
source: new UrlSource('/rotate-buck-bunny.mp4'),
formats: ALL_FORMATS,
@@ -62,7 +63,7 @@ test('Exceeding max allowed track count', async () => {
target: new BufferTarget(),
});
const conversion = await Conversion.init({ input, output });
const conversion = await Conversion.init({ input, output, showWarnings: false });
expect(conversion.utilizedTracks).toHaveLength(1);
expect(conversion.discardedTracks).toHaveLength(1);
expect(conversion.discardedTracks[0]!.reason).toBe('max_track_count_reached');
@@ -84,6 +85,7 @@ test('Fan-out', async () => {
output,
video: [{ height: 480 }, { height: 360 }],
audio: [], // Identical to discarding it
showWarnings: false,
});
expect(conversion.utilizedTracks).toHaveLength(2);
expect(conversion.discardedTracks).toHaveLength(1);
@@ -103,21 +105,25 @@ test('Fan-out', async () => {
expect(await tracks[1]!.getDisplayHeight()).toBe(360);
});
const createSineWave = (sampleRate: number, channels: number, durationSeconds: number) => {
const buffer = new AudioBuffer({
sampleRate,
numberOfChannels: channels,
length: sampleRate * durationSeconds,
});
// eslint-disable-next-line @stylistic/max-len
const aacPacketData = new Uint8Array([255, 241, 77, 128, 3, 159, 252, 0, 208, 0, 1, 3, 64, 0, 13, 0, 0, 17, 52, 0, 0, 208, 0, 3, 6, 128, 0, 56]);
const aacMetadata: EncodedAudioChunkMetadata = {
decoderConfig: {
codec: 'mp4a.40.2',
numberOfChannels: 2,
sampleRate: 48000,
},
};
for (let ch = 0; ch < channels; ch++) {
const data = buffer.getChannelData(ch);
for (let i = 0; i < data.length; i++) {
data[i] = Math.sin(2 * Math.PI * 440 * i / sampleRate);
}
const addAacPackets = async (source: EncodedAudioPacketSource, durationSeconds: number) => {
const packetDuration = 1024 / 48000;
const count = Math.ceil(durationSeconds / packetDuration);
for (let i = 0; i < count; i++) {
await source.add(
new EncodedPacket(aacPacketData, 'key', i * packetDuration, packetDuration),
i === 0 ? aacMetadata : undefined,
);
}
return buffer;
};
test('HLS track assignability is kept #1', async () => {
@@ -148,7 +154,7 @@ test('HLS track assignability is kept #1', async () => {
const videoSource = new CanvasSource(canvas, { codec: 'avc', bitrate: QUALITY_HIGH });
output.addVideoTrack(videoSource);
const audioSource = new AudioBufferSource({ codec: 'aac', bitrate: QUALITY_HIGH });
const audioSource = new EncodedAudioPacketSource('aac');
output.addAudioTrack(audioSource);
await output.start();
@@ -157,7 +163,7 @@ test('HLS track assignability is kept #1', async () => {
await videoSource.add(i / 2, 1 / 2);
}
await audioSource.add(createSineWave(48000, 2, 2));
await addAacPackets(audioSource, 2);
await output.finalize();
@@ -227,7 +233,7 @@ test('HLS track assignability is kept #2', async () => {
const videoSource = new CanvasSource(canvas, { codec: 'avc', bitrate: QUALITY_HIGH });
output.addVideoTrack(videoSource, { group: a });
const audioSource = new AudioBufferSource({ codec: 'aac', bitrate: QUALITY_HIGH });
const audioSource = new EncodedAudioPacketSource('aac');
output.addAudioTrack(audioSource, { group: b });
await output.start();
@@ -236,7 +242,7 @@ test('HLS track assignability is kept #2', async () => {
await videoSource.add(i / 2, 1 / 2);
}
await audioSource.add(createSineWave(48000, 2, 2));
await addAacPackets(audioSource, 2);
await output.finalize();
@@ -306,7 +312,7 @@ test('HLS track assignability can be overridden', async () => {
const videoSource = new CanvasSource(canvas, { codec: 'avc', bitrate: QUALITY_HIGH });
output.addVideoTrack(videoSource, { group: a });
const audioSource = new AudioBufferSource({ codec: 'aac', bitrate: QUALITY_HIGH });
const audioSource = new EncodedAudioPacketSource('aac');
output.addAudioTrack(audioSource, { group: b });
await output.start();
@@ -315,7 +321,7 @@ test('HLS track assignability can be overridden', async () => {
await videoSource.add(i / 2, 1 / 2);
}
await audioSource.add(createSineWave(48000, 2, 2));
await addAacPackets(audioSource, 2);
await output.finalize();