mirror of
https://github.com/arcodange-org/mediabunny.git
synced 2026-09-28 19:33:51 +02:00
903 lines
28 KiB
TypeScript
903 lines
28 KiB
TypeScript
import { expect, test } from 'vitest';
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import { Input } from '../../src/input.js';
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import { FilePathSource, ReadableStreamSource, CustomSource } from '../../src/source.js';
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import path from 'node:path';
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import fs from 'node:fs';
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import { Readable } from 'node:stream';
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import { ALL_FORMATS, MPEG_TS } from '../../src/input-format.js';
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import { assert } from '../../src/misc.js';
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import { PacketCursor } from '../../src/cursors.js';
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import { PacketReader } from '../../src/packet.js';
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import { EncodedPacket } from '../../src/packet.js';
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import { MpegTsDemuxer } from '../../src/mpeg-ts/mpeg-ts-demuxer.js';
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import { MpegTsStreamType } from '../../src/mpeg-ts/mpeg-ts-misc.js';
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const __dirname = new URL('.', import.meta.url).pathname;
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test('MPEG-TS input format', async () => {
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expect(MPEG_TS.mimeType).toBe('video/MP2T');
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expect(MPEG_TS.name).toBe('MPEG Transport Stream');
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});
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test('MPEG-TS metadata reading', async () => {
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using input = new Input({
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source: new FilePathSource(path.join(__dirname, '../public/0.ts')),
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formats: ALL_FORMATS,
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});
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expect(await input.getFormat()).toBe(MPEG_TS);
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expect((await input.getFormat()).mimeType).toBe('video/MP2T');
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expect(await input.getMimeType()).toBe('video/MP2T; codecs="avc1.640020, mp4a.40.2"');
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const tracks = await input.getTracks();
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expect(tracks).toHaveLength(2);
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const videoTrack = await input.getPrimaryVideoTrack();
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assert(videoTrack);
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expect(videoTrack.id).toBe(0x100);
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expect(await videoTrack.getCodec()).toBe('avc');
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expect(await videoTrack.getInternalCodecId()).toBe(0x1b);
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expect(await videoTrack.getDisplayWidth()).toEqual(720);
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expect(await videoTrack.getDisplayHeight()).toEqual(720);
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expect(await videoTrack.getTimeResolution()).toBe(90_000);
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const videoDecoderConfig = await videoTrack.getDecoderConfig();
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expect(videoDecoderConfig).toEqual({
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codec: 'avc1.640020',
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codedWidth: 720,
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codedHeight: 720,
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colorSpace: {
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primaries: 'bt2020',
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transfer: 'hlg',
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matrix: 'bt2020-ncl',
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fullRange: false,
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},
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// No description, it's Annex B
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});
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expect(await videoTrack.getFirstTimestamp()).toBe(10.033333333333333);
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const audioTrack = await input.getPrimaryAudioTrack();
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assert(audioTrack);
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expect(audioTrack.id).toBe(0x101);
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expect(await audioTrack.getCodec()).toBe('aac');
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expect(await audioTrack.getNumberOfChannels()).toBe(2);
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expect(await audioTrack.getSampleRate()).toBe(48000);
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const audioDecoderConfig = await audioTrack.getDecoderConfig();
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expect(audioDecoderConfig).toEqual({
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codec: 'mp4a.40.2',
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numberOfChannels: 2,
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sampleRate: 48000,
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// No description, it's ADTS audio
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});
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expect(await audioTrack.getFirstTimestamp()).toBe(10.012);
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});
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test('MPEG-TS durations', async () => {
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using input = new Input({
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source: new FilePathSource(path.join(__dirname, '../public/0.ts')),
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formats: ALL_FORMATS,
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});
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const firstTimestamp = await input.getFirstTimestamp();
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expect(firstTimestamp).toBe(10.012);
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const duration = await input.computeDuration();
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expect(duration).toBeCloseTo(15.004);
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const videoTrack = await input.getPrimaryVideoTrack();
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assert(videoTrack);
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const videoFirstTimestamp = await videoTrack.getFirstTimestamp();
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expect(videoFirstTimestamp).toBe(10.033333333333333);
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const videoDuration = await videoTrack.computeDuration();
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expect(videoDuration).toBeCloseTo(15);
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const audioTrack = await input.getPrimaryAudioTrack();
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assert(audioTrack);
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const audioFirstTimestamp = await audioTrack.getFirstTimestamp();
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expect(audioFirstTimestamp).toBe(10.012);
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const audioDuration = await audioTrack.computeDuration();
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expect(audioDuration).toBeCloseTo(15.004);
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});
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test('MPEG-TS AVC video packets', async () => {
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using input = new Input({
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source: new FilePathSource(path.join(__dirname, '../public/0.ts')),
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formats: ALL_FORMATS,
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});
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const videoTrack = await input.getPrimaryVideoTrack();
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assert(videoTrack);
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const reader = new PacketReader(videoTrack);
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const firstPacket = await reader.getFirst();
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assert(firstPacket);
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expect([...firstPacket.data.slice(0, 4)]).toEqual([0, 0, 0, 1]);
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expect(firstPacket.data.byteLength).toBe(23813);
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expect(firstPacket.type).toBe('key');
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expect(firstPacket.timestamp).toBe(10.033333333333333);
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expect(firstPacket.duration).toBe(0.016666666666666666);
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expect(firstPacket.sequenceNumber).not.toBe(-1);
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const firstPacketMetadataOnly = await reader.getFirst({ metadataOnly: true });
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assert(firstPacketMetadataOnly);
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expect(firstPacketMetadataOnly.data).toHaveLength(0);
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expect(firstPacketMetadataOnly.byteLength).toBe(23813);
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const secondPacket = await reader.getNext(firstPacket);
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assert(secondPacket);
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expect([...secondPacket.data.slice(0, 4)]).toEqual([0, 0, 0, 1]);
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expect(secondPacket.data.byteLength).toBe(5700);
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expect(secondPacket.type).toBe('delta');
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expect(secondPacket.timestamp).toBe(10.1);
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expect(secondPacket.duration).toBe(0.016666666666666666);
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expect(secondPacket.sequenceNumber).toBeGreaterThan(firstPacket.sequenceNumber);
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let currentPacket: EncodedPacket | null = firstPacket;
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let count = 0;
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while (currentPacket) {
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expect(currentPacket.duration).toBe(0.016666666666666666);
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currentPacket = await reader.getNext(currentPacket);
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count++;
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}
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expect(count).toBe(298);
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});
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test('MPEG-TS AAC audio packets', async () => {
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using input = new Input({
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source: new FilePathSource(path.join(__dirname, '../public/0.ts')),
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formats: ALL_FORMATS,
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});
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const audioTrack = await input.getPrimaryAudioTrack();
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assert(audioTrack);
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const reader = new PacketReader(audioTrack);
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const firstPacket = await reader.getFirst();
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assert(firstPacket);
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expect(firstPacket.data[0]).toEqual(0xff);
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expect(firstPacket.data.byteLength).toBe(348);
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expect(firstPacket.type).toBe('key');
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expect(firstPacket.timestamp).toBe(10.012);
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expect(firstPacket.duration).toBe(0.021333333333333333);
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expect(firstPacket.sequenceNumber).not.toBe(-1);
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const secondPacket = await reader.getNext(firstPacket);
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assert(secondPacket);
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expect(secondPacket.data[0]).toEqual(0xff);
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expect(secondPacket.data.byteLength).toBe(349);
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expect(secondPacket.type).toBe('key');
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expect(secondPacket.timestamp).toBeCloseTo(10.033333333333333);
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expect(secondPacket.duration).toBe(0.021333333333333333);
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expect(secondPacket.sequenceNumber).toBeGreaterThan(firstPacket.sequenceNumber);
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let currentPacket: EncodedPacket | null = firstPacket;
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let count = 0;
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while (currentPacket) {
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expect(currentPacket.duration).toBe(0.021333333333333333);
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currentPacket = await reader.getNext(currentPacket);
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count++;
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}
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expect(count).toBe(234);
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});
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test('MPEG-TS video seeking', async () => {
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for (let i = 0; i < 2; i++) {
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using input = new Input({
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source: new FilePathSource(path.join(__dirname, '../public/0.ts')),
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formats: ALL_FORMATS,
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});
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const videoTrack = await input.getPrimaryVideoTrack();
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assert(videoTrack);
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if (i === 1) {
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const demuxer = (await input._demuxerPromise) as MpegTsDemuxer;
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demuxer.seekChunkSize = 250_000; // Try it again with a smaller chunk size
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}
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const reader = new PacketReader(videoTrack);
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const firstTimestamp = await videoTrack.getFirstTimestamp();
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const firstPacket = await reader.getAt(firstTimestamp);
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assert(firstPacket);
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expect(firstPacket.timestamp).toBe(firstTimestamp);
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expect(firstPacket.duration).toBe(0.016666666666666666);
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expect(firstPacket.sequenceNumber).toBe((await reader.getFirst())?.sequenceNumber);
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const lastPacket = await reader.getAt(Infinity);
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assert(lastPacket);
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expect(lastPacket.timestamp).toBeCloseTo(14.983333333333333);
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expect(lastPacket.duration).toBe(0.016666666666666666);
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const beforeFirst = await reader.getAt(-10);
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expect(beforeFirst).toBeNull();
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const middlePacket = await reader.getAt(12.5);
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assert(middlePacket);
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expect(middlePacket.timestamp).toBeCloseTo(12.5);
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expect(middlePacket.duration).toBe(0.016666666666666666);
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const allPackets: EncodedPacket[] = [];
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let currentPacket: EncodedPacket | null = firstPacket;
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while (currentPacket) {
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allPackets.push(currentPacket);
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currentPacket = await reader.getNext(currentPacket);
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}
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expect(allPackets).toHaveLength(298);
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for (const packet of allPackets) {
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const seekedPacket = await reader.getAt(packet.timestamp);
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assert(seekedPacket);
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expect(seekedPacket.timestamp).toBe(packet.timestamp);
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expect(seekedPacket.duration).toBe(packet.duration);
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expect(seekedPacket.sequenceNumber).toBe(packet.sequenceNumber);
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}
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}
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});
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test('MPEG-TS audio seeking', async () => {
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for (let i = 0; i < 2; i++) {
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using input = new Input({
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source: new FilePathSource(path.join(__dirname, '../public/0.ts')),
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formats: ALL_FORMATS,
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});
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const audioTrack = await input.getPrimaryAudioTrack();
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assert(audioTrack);
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if (i === 1) {
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const demuxer = (await input._demuxerPromise) as MpegTsDemuxer;
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demuxer.seekChunkSize = 250_000; // Try it again with a smaller chunk size
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}
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const reader = new PacketReader(audioTrack);
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const firstTimestamp = await audioTrack.getFirstTimestamp();
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const firstPacket = await reader.getAt(firstTimestamp);
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assert(firstPacket);
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expect(firstPacket.timestamp).toBe(firstTimestamp);
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expect(firstPacket.duration).toBe(0.021333333333333333);
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expect(firstPacket.sequenceNumber).toBe((await reader.getFirst())?.sequenceNumber);
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const lastPacket = await reader.getAt(Infinity);
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assert(lastPacket);
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expect(lastPacket.timestamp).toBeCloseTo(14.982666666666667);
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expect(lastPacket.duration).toBe(0.021333333333333333);
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const beforeFirst = await reader.getAt(-10);
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expect(beforeFirst).toBeNull();
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const middlePacket = await reader.getAt(12.5);
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assert(middlePacket);
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expect(middlePacket.timestamp).toBeCloseTo(12.486666666666666);
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expect(middlePacket.duration).toBe(0.021333333333333333);
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const allPackets: EncodedPacket[] = [];
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let currentPacket: EncodedPacket | null = firstPacket;
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while (currentPacket) {
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allPackets.push(currentPacket);
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currentPacket = await reader.getNext(currentPacket);
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}
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expect(allPackets).toHaveLength(234);
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for (const packet of allPackets) {
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const seekedPacket = await reader.getAt(packet.timestamp);
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assert(seekedPacket);
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expect(seekedPacket.timestamp).toBe(packet.timestamp); // The correct timestamp was retrieved
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expect(seekedPacket.duration).toBe(packet.duration); // The correct duration was retrieved
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expect(seekedPacket.sequenceNumber).toBe(packet.sequenceNumber);
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}
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}
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});
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test('MPEG-TS seeking race condition test', async () => {
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for (let i = 0; i < 2; i++) {
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using input = new Input({
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source: new FilePathSource(path.join(__dirname, '../public/0.ts')),
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formats: ALL_FORMATS,
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});
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const videoTrack = await input.getPrimaryVideoTrack();
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assert(videoTrack);
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if (i === 1) {
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const demuxer = (await input._demuxerPromise) as MpegTsDemuxer;
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demuxer.seekChunkSize = 250_000; // Try it again with a smaller chunk size
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}
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const reader = new PacketReader(videoTrack);
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const allPackets: EncodedPacket[] = [];
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let currentPacket: EncodedPacket | null = await reader.getFirst();
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while (currentPacket) {
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allPackets.push(currentPacket);
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currentPacket = await reader.getNext(currentPacket);
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}
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// Perform all seeks concurrently
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const seekPromises = allPackets.map(packet => reader.getAt(packet.timestamp));
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// eslint-disable-next-line @typescript-eslint/await-thenable
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const seekedPackets = await Promise.all(seekPromises);
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for (let j = 0; j < allPackets.length; j++) {
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const originalPacket = allPackets[j]!;
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const seekedPacket = seekedPackets[j]!;
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assert(seekedPacket);
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expect(seekedPacket.timestamp).toBe(originalPacket.timestamp);
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expect(seekedPacket.duration).toBe(originalPacket.duration);
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expect(seekedPacket.sequenceNumber).toBe(originalPacket.sequenceNumber);
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}
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}
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});
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test('MPEG-TS video key packets', { timeout: 30_000 }, async () => {
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for (let i = 0; i < 2; i++) {
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using input = new Input({
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source: new FilePathSource(path.join(__dirname, '../public/trim-buck-bunny-ffmpeg.ts')),
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formats: ALL_FORMATS,
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});
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const videoTrack = await input.getPrimaryVideoTrack();
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assert(videoTrack);
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if (i === 1) {
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const demuxer = (await input._demuxerPromise) as MpegTsDemuxer;
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demuxer.seekChunkSize = 250_000; // Try it again with a smaller chunk size
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}
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const reader = new PacketReader(videoTrack);
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const firstPacket = await reader.getFirst();
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assert(firstPacket);
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expect(firstPacket.type).toBe('key');
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const secondPacket = await reader.getNext(firstPacket);
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assert(secondPacket);
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expect(secondPacket.type).toBe('delta');
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const nextKeyPacket = await reader.getNextKey(firstPacket);
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assert(nextKeyPacket);
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expect(nextKeyPacket.type).toBe('key');
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expect(nextKeyPacket.sequenceNumber).toBeGreaterThan(secondPacket.sequenceNumber);
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const firstKeyPacket = await reader.getKeyAt(firstPacket.timestamp + 0.5);
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assert(firstKeyPacket);
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expect(firstKeyPacket.type).toBe('key');
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expect(firstKeyPacket.sequenceNumber).toBe(firstPacket.sequenceNumber);
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const afterKeyPacket = await reader.getNext(firstKeyPacket);
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expect(afterKeyPacket).not.toBe(null);
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expect(afterKeyPacket!.type).toBe('delta');
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expect(afterKeyPacket!.sequenceNumber).toBe(secondPacket.sequenceNumber);
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const secondKeyPacket = await reader.getKeyAt(2.5);
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assert(secondKeyPacket);
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expect(secondKeyPacket.type).toBe('key');
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expect(secondKeyPacket.sequenceNumber).toBe(nextKeyPacket.sequenceNumber);
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const lastKeyPacket = await reader.getKeyAt(Infinity);
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assert(lastKeyPacket);
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expect(lastKeyPacket.type).toBe('key');
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expect(lastKeyPacket.sequenceNumber).toBeGreaterThan(secondKeyPacket.sequenceNumber);
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const allKeyPackets: EncodedPacket[] = [];
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let currentKeyPacket: EncodedPacket | null = firstPacket;
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while (currentKeyPacket) {
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allKeyPackets.push(currentKeyPacket);
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currentKeyPacket = await reader.getNextKey(currentKeyPacket);
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}
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for (const packet of allKeyPackets) {
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const keyPacket = await reader.getKeyAt(packet.timestamp);
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assert(keyPacket);
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expect(keyPacket.timestamp).toBe(packet.timestamp); // The correct timestamp was retrieved for this packet
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expect(keyPacket.duration).toBe(packet.duration); // The correct duration was retrieved for this packet
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expect(keyPacket.sequenceNumber).toBe(packet.sequenceNumber);
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}
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}
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});
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test('MPEG-TS audio key packets', async () => {
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for (let i = 0; i < 2; i++) {
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using input = new Input({
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source: new FilePathSource(path.join(__dirname, '../public/0.ts')),
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formats: ALL_FORMATS,
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});
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const audioTrack = await input.getPrimaryAudioTrack();
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assert(audioTrack);
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if (i === 1) {
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const demuxer = (await input._demuxerPromise) as MpegTsDemuxer;
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demuxer.seekChunkSize = 250_000; // Try it again with a smaller chunk size
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}
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const reader = new PacketReader(audioTrack);
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const firstPacket = await reader.getFirst();
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assert(firstPacket);
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expect(firstPacket.type).toBe('key');
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const secondPacket = await reader.getNext(firstPacket);
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assert(secondPacket);
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expect(secondPacket.type).toBe('key');
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const nextKeyPacket = await reader.getNextKey(firstPacket);
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assert(nextKeyPacket);
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expect(nextKeyPacket.type).toBe('key');
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expect(nextKeyPacket.sequenceNumber).toBe(secondPacket.sequenceNumber); // All audio packets are key packets
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const middleKeyPacket = await reader.getKeyAt(12.5);
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assert(middleKeyPacket);
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expect(middleKeyPacket.type).toBe('key');
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const afterKeyPacket = await reader.getNext(middleKeyPacket);
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expect(afterKeyPacket).not.toBe(null);
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expect(afterKeyPacket!.type).toBe('key');
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const lastPacket = await reader.getAt(Infinity);
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assert(lastPacket);
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const lastKeyPacket = await reader.getKeyAt(Infinity);
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assert(lastKeyPacket);
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expect(lastKeyPacket.type).toBe('key');
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expect(lastKeyPacket.sequenceNumber).toBe(lastPacket.sequenceNumber); // It's actually the last packet
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const allKeyPackets: EncodedPacket[] = [];
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let currentKeyPacket: EncodedPacket | null = firstPacket;
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while (currentKeyPacket) {
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allKeyPackets.push(currentKeyPacket);
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currentKeyPacket = await reader.getNextKey(currentKeyPacket);
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}
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for (const packet of allKeyPackets) {
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const keyPacket = await reader.getKeyAt(packet.timestamp);
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assert(keyPacket);
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expect(keyPacket.timestamp).toBe(packet.timestamp); // The correct timestamp was retrieved for this packet
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expect(keyPacket.duration).toBe(packet.duration); // The correct duration was retrieved for this packet
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expect(keyPacket.sequenceNumber).toBe(packet.sequenceNumber);
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}
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}
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});
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test('MPEG-TS with unknown file size (ReadableStreamSource)', async () => {
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for (let i = 0; i < 2; i++) {
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const filePath = path.join(__dirname, '../public/0.ts');
|
|
const fileStream = fs.createReadStream(filePath);
|
|
const webStream = Readable.toWeb(fileStream) as ReadableStream<Uint8Array>;
|
|
|
|
using input = new Input({
|
|
source: new ReadableStreamSource(webStream),
|
|
formats: ALL_FORMATS,
|
|
});
|
|
|
|
const videoTrack = await input.getPrimaryVideoTrack();
|
|
assert(videoTrack);
|
|
|
|
if (i === 1) {
|
|
const demuxer = (await input._demuxerPromise) as MpegTsDemuxer;
|
|
demuxer.seekChunkSize = 250_000; // Try it again with a smaller chunk size
|
|
}
|
|
|
|
const reader = new PacketReader(videoTrack);
|
|
|
|
const firstPacket = await reader.getFirst();
|
|
assert(firstPacket);
|
|
expect(firstPacket.type).toBe('key');
|
|
expect(firstPacket.timestamp).toBe(10.033333333333333);
|
|
|
|
const middlePacket = await reader.getAt(12.5);
|
|
assert(middlePacket);
|
|
expect(middlePacket.timestamp).toBeCloseTo(12.5);
|
|
|
|
const duration = await videoTrack.computeDuration();
|
|
expect(duration).toBeCloseTo(15);
|
|
}
|
|
});
|
|
|
|
test('MPEG-TS transmuxed by FFmpeg', { timeout: 30_000 }, async () => {
|
|
using input = new Input({
|
|
source: new FilePathSource(path.join(__dirname, '../public/trim-buck-bunny-ffmpeg.ts')),
|
|
formats: ALL_FORMATS,
|
|
});
|
|
|
|
const videoTrack = await input.getPrimaryVideoTrack();
|
|
assert(videoTrack);
|
|
|
|
const audioTrack = await input.getPrimaryAudioTrack();
|
|
assert(audioTrack);
|
|
|
|
const videoPacketStats = await videoTrack.computePacketStats();
|
|
const audioPacketStats = await audioTrack.computePacketStats();
|
|
|
|
expect(videoPacketStats.packetCount).toBe(121);
|
|
expect(audioPacketStats.packetCount).toBe(235);
|
|
});
|
|
|
|
test('MPEG-TS with HEVC video', async () => {
|
|
using input = new Input({
|
|
source: new FilePathSource(path.join(__dirname, '../public/hevc.ts')),
|
|
formats: ALL_FORMATS,
|
|
});
|
|
|
|
const videoTrack = await input.getPrimaryVideoTrack();
|
|
assert(videoTrack);
|
|
|
|
expect(await videoTrack.getCodec()).toBe('hevc');
|
|
expect(await videoTrack.getInternalCodecId()).toBe(0x24);
|
|
expect(await videoTrack.getDisplayWidth()).toBe(1920);
|
|
expect(await videoTrack.getDisplayHeight()).toBe(1080);
|
|
|
|
const videoDecoderConfig = await videoTrack.getDecoderConfig();
|
|
expect(videoDecoderConfig).toEqual({
|
|
codec: 'hev1.1.6.L120.90',
|
|
codedWidth: 1920,
|
|
codedHeight: 1080,
|
|
colorSpace: {
|
|
primaries: 'bt709',
|
|
transfer: 'bt709',
|
|
matrix: 'bt709',
|
|
fullRange: false,
|
|
},
|
|
// No description, it's Annex B
|
|
});
|
|
|
|
const cursor = new PacketCursor(videoTrack);
|
|
|
|
let i = 0;
|
|
for await (const packet of cursor) {
|
|
expect(packet.data.slice(0, 4)).toEqual(new Uint8Array([0, 0, 0, 1])); // Annex B
|
|
expect(packet.duration).toBeCloseTo(0.04166666666);
|
|
expect(packet.type).toBe(i > 0 ? 'delta' : 'key');
|
|
i++;
|
|
}
|
|
});
|
|
|
|
test('MPEG-TS with MP3 audio', async () => {
|
|
using input = new Input({
|
|
source: new FilePathSource(path.join(__dirname, '../public/mp3.ts')),
|
|
formats: ALL_FORMATS,
|
|
});
|
|
|
|
const audioTrack = await input.getPrimaryAudioTrack();
|
|
assert(audioTrack);
|
|
|
|
expect(await audioTrack.getCodec()).toBe('mp3');
|
|
expect(await audioTrack.getInternalCodecId()).toBe(0x03);
|
|
|
|
const audioDecoderConfig = await audioTrack.getDecoderConfig();
|
|
expect(audioDecoderConfig).toEqual({
|
|
codec: 'mp3',
|
|
numberOfChannels: 2,
|
|
sampleRate: 48000,
|
|
});
|
|
|
|
const reader = new PacketReader(audioTrack);
|
|
|
|
const firstPacket = await reader.getFirst();
|
|
assert(firstPacket);
|
|
|
|
let count = 0;
|
|
for await (const packet of new PacketCursor(audioTrack)) {
|
|
expect(packet.data[0]).toBe(0xff);
|
|
expect(packet.type).toBe('key');
|
|
count++;
|
|
}
|
|
|
|
expect(count).toBeGreaterThan(0);
|
|
});
|
|
|
|
test('MPEG-TS with AC-3 audio (System A)', async () => {
|
|
using input = new Input({
|
|
source: new FilePathSource(path.join(__dirname, '../public/ac3.ts')),
|
|
formats: ALL_FORMATS,
|
|
});
|
|
|
|
const audioTrack = await input.getPrimaryAudioTrack();
|
|
assert(audioTrack);
|
|
|
|
expect(await audioTrack.getCodec()).toBe('ac3');
|
|
expect(await audioTrack.getInternalCodecId()).toBe(MpegTsStreamType.AC3_SYSTEM_A);
|
|
|
|
const audioDecoderConfig = await audioTrack.getDecoderConfig();
|
|
expect(audioDecoderConfig).toEqual({
|
|
codec: 'ac-3',
|
|
numberOfChannels: 6,
|
|
sampleRate: 48000,
|
|
});
|
|
|
|
const reader = new PacketReader(audioTrack);
|
|
|
|
const firstPacket = await reader.getFirst();
|
|
assert(firstPacket);
|
|
|
|
let count = 0;
|
|
for await (const packet of new PacketCursor(audioTrack)) {
|
|
expect(packet.data[0]).toBe(0x0b);
|
|
expect(packet.data[1]).toBe(0x77);
|
|
expect(packet.type).toBe('key');
|
|
count++;
|
|
}
|
|
|
|
expect(count).toBeGreaterThan(0);
|
|
});
|
|
|
|
test('MPEG-TS with AC-3 audio (System B)', async () => {
|
|
using input = new Input({
|
|
source: new FilePathSource(path.join(__dirname, '../public/ac3-system-b.ts')),
|
|
formats: ALL_FORMATS,
|
|
});
|
|
|
|
const audioTrack = await input.getPrimaryAudioTrack();
|
|
assert(audioTrack);
|
|
|
|
expect(await audioTrack.getCodec()).toBe('ac3');
|
|
expect(await audioTrack.getInternalCodecId()).toBe(MpegTsStreamType.PRIVATE_DATA);
|
|
|
|
const audioDecoderConfig = await audioTrack.getDecoderConfig();
|
|
expect(audioDecoderConfig).toEqual({
|
|
codec: 'ac-3',
|
|
numberOfChannels: 6,
|
|
sampleRate: 48000,
|
|
});
|
|
|
|
const reader = new PacketReader(audioTrack);
|
|
|
|
const firstPacket = await reader.getFirst();
|
|
assert(firstPacket);
|
|
|
|
let count = 0;
|
|
for await (const packet of new PacketCursor(audioTrack)) {
|
|
expect(packet.data[0]).toBe(0x0b);
|
|
expect(packet.data[1]).toBe(0x77);
|
|
expect(packet.type).toBe('key');
|
|
count++;
|
|
}
|
|
|
|
expect(count).toBeGreaterThan(0);
|
|
});
|
|
|
|
test('MPEG-TS with E-AC-3 audio (System A)', async () => {
|
|
using input = new Input({
|
|
source: new FilePathSource(path.join(__dirname, '../public/eac3.ts')),
|
|
formats: ALL_FORMATS,
|
|
});
|
|
|
|
const audioTrack = await input.getPrimaryAudioTrack();
|
|
assert(audioTrack);
|
|
|
|
expect(await audioTrack.getCodec()).toBe('eac3');
|
|
expect(await audioTrack.getInternalCodecId()).toBe(MpegTsStreamType.EAC3_SYSTEM_A);
|
|
|
|
const audioDecoderConfig = await audioTrack.getDecoderConfig();
|
|
expect(audioDecoderConfig).toEqual({
|
|
codec: 'ec-3',
|
|
numberOfChannels: 6,
|
|
sampleRate: 48000,
|
|
});
|
|
|
|
const reader = new PacketReader(audioTrack);
|
|
|
|
const firstPacket = await reader.getFirst();
|
|
assert(firstPacket);
|
|
|
|
let count = 0;
|
|
for await (const packet of new PacketCursor(audioTrack)) {
|
|
expect(packet.data[0]).toBe(0x0b);
|
|
expect(packet.data[1]).toBe(0x77);
|
|
expect(packet.type).toBe('key');
|
|
count++;
|
|
}
|
|
|
|
expect(count).toBeGreaterThan(0);
|
|
});
|
|
|
|
test('MPEG-TS with E-AC-3 audio (System B)', async () => {
|
|
using input = new Input({
|
|
source: new FilePathSource(path.join(__dirname, '../public/eac3-system-b.ts')),
|
|
formats: ALL_FORMATS,
|
|
});
|
|
|
|
const audioTrack = await input.getPrimaryAudioTrack();
|
|
assert(audioTrack);
|
|
|
|
expect(await audioTrack.getCodec()).toBe('eac3');
|
|
expect(await audioTrack.getInternalCodecId()).toBe(MpegTsStreamType.PRIVATE_DATA);
|
|
|
|
const audioDecoderConfig = await audioTrack.getDecoderConfig();
|
|
expect(audioDecoderConfig).toEqual({
|
|
codec: 'ec-3',
|
|
numberOfChannels: 6,
|
|
sampleRate: 48000,
|
|
});
|
|
|
|
const reader = new PacketReader(audioTrack);
|
|
|
|
const firstPacket = await reader.getFirst();
|
|
assert(firstPacket);
|
|
|
|
let count = 0;
|
|
for await (const packet of new PacketCursor(audioTrack)) {
|
|
expect(packet.data[0]).toBe(0x0b);
|
|
expect(packet.data[1]).toBe(0x77);
|
|
expect(packet.type).toBe('key');
|
|
count++;
|
|
}
|
|
|
|
expect(count).toBeGreaterThan(0);
|
|
});
|
|
|
|
test('MPEG-TS partial reading', async () => {
|
|
const fullPath = path.join(__dirname, '../public/193039199_mp4_h264_aac_fhd_7.ts');
|
|
const buffer = await fs.promises.readFile(fullPath);
|
|
let maxEnd = 0;
|
|
|
|
using input = new Input({
|
|
source: new CustomSource({
|
|
getSize: () => {
|
|
return buffer.byteLength;
|
|
},
|
|
read: (start, end) => {
|
|
maxEnd = Math.max(maxEnd, end);
|
|
return buffer.subarray(start, end);
|
|
},
|
|
}),
|
|
formats: ALL_FORMATS,
|
|
});
|
|
|
|
await input.getTracks();
|
|
|
|
// Not much of the file has been read since we only requested metadata
|
|
expect(maxEnd).toBeLessThanOrEqual(86480);
|
|
});
|
|
|
|
test('MPEG-TS first packet key packet forcing', async () => {
|
|
for (let i = 0; i < 2; i++) {
|
|
using input = new Input({
|
|
source: new FilePathSource(path.join(__dirname, '../public/missing-keyframe-labels.ts')),
|
|
formats: ALL_FORMATS,
|
|
});
|
|
|
|
const videoTrack = await input.getPrimaryVideoTrack();
|
|
assert(videoTrack);
|
|
|
|
if (i === 1) {
|
|
const demuxer = (await input._demuxerPromise) as MpegTsDemuxer;
|
|
demuxer.seekChunkSize = 250_000; // Try it again with a smaller chunk size
|
|
}
|
|
|
|
const reader = new PacketReader(videoTrack);
|
|
|
|
// Test that the first packet is indeed a key packet even if the file doesn't label it that way (L muxer)
|
|
const firstPacket = await reader.getFirst();
|
|
assert(firstPacket);
|
|
expect(firstPacket.type).toBe('key');
|
|
|
|
const firstPacketSeeked = await reader.getAt(firstPacket.timestamp);
|
|
assert(firstPacketSeeked);
|
|
expect(firstPacketSeeked.type).toBe('key');
|
|
expect(firstPacketSeeked.sequenceNumber).toBe(firstPacket.sequenceNumber);
|
|
|
|
const firstKeyPacketSeeked = await reader.getKeyAt(firstPacket.timestamp);
|
|
assert(firstKeyPacketSeeked);
|
|
expect(firstKeyPacketSeeked.type).toBe('key');
|
|
expect(firstKeyPacketSeeked.sequenceNumber).toBe(firstPacket.sequenceNumber);
|
|
}
|
|
});
|
|
|
|
test('MPEG-TS without initial key packet', async () => {
|
|
for (let i = 0; i < 2; i++) {
|
|
using input = new Input({
|
|
source: new FilePathSource(path.join(__dirname, '../public/no-initial-keyframe.ts')),
|
|
formats: ALL_FORMATS,
|
|
});
|
|
|
|
const videoTrack = await input.getPrimaryVideoTrack();
|
|
assert(videoTrack);
|
|
|
|
if (i === 1) {
|
|
const demuxer = (await input._demuxerPromise) as MpegTsDemuxer;
|
|
demuxer.seekChunkSize = 250_000; // Try it again with a smaller chunk size
|
|
}
|
|
|
|
const reader = new PacketReader(videoTrack);
|
|
|
|
const firstPacket = await reader.getFirst();
|
|
assert(firstPacket);
|
|
expect(firstPacket.type).toBe('delta'); // First packet is delta
|
|
|
|
const noPacket = await reader.getKeyAt(firstPacket.timestamp);
|
|
expect(noPacket).toBeNull();
|
|
|
|
const aKeyPacket = await reader.getKeyAt(Infinity);
|
|
assert(aKeyPacket);
|
|
expect(aKeyPacket.type).toBe('key');
|
|
}
|
|
});
|
|
|
|
test('MPEG-TS with "extension" PES packets without PTS', async () => {
|
|
using input = new Input({
|
|
source: new FilePathSource(path.join(__dirname, '../public/entry24-segment3.ts')),
|
|
formats: ALL_FORMATS,
|
|
});
|
|
|
|
const videoTrack = await input.getPrimaryVideoTrack();
|
|
assert(videoTrack);
|
|
|
|
const packetSizes: number[] = [];
|
|
const reader = new PacketReader(videoTrack);
|
|
|
|
for await (const packet of new PacketCursor(videoTrack)) {
|
|
packetSizes.push(packet.data.byteLength);
|
|
|
|
const seeked = await reader.getAt(packet.timestamp);
|
|
expect(seeked!.timestamp).toBe(packet.timestamp);
|
|
expect(seeked!.sequenceNumber).toBe(packet.sequenceNumber);
|
|
}
|
|
|
|
expect(packetSizes).toEqual([
|
|
// These reference values come from ffprobe
|
|
30635, 5980, 3452, 2076, 2692, 9559, 5754, 2171, 2989, 13962,
|
|
4156, 209260, 25698, 152, 2299, 128, 94, 102, 74, 28898,
|
|
233, 127, 99, 1449, 130, 99, 3988, 202, 130, 139,
|
|
92, 18652, 200, 146, 98, 8666, 190, 151, 156, 108,
|
|
9991, 162, 97, 81, 9929, 130, 106, 13362, 133, 117,
|
|
7606, 274, 109, 106, 12359, 218, 123, 111, 24109, 261,
|
|
142, 120, 13417, 789, 153, 139, 12490, 549, 192, 135,
|
|
13191, 428, 159, 150, 30815, 309, 135, 119, 9231, 354,
|
|
147, 116, 11835, 263, 162, 103, 6693, 202, 100, 101,
|
|
4693, 223, 144, 174, 118, 9155, 1188, 379, 169, 213,
|
|
]);
|
|
});
|
|
|
|
test('MPEG-TS with AUD-less video packets', async () => {
|
|
using input = new Input({
|
|
source: new FilePathSource(path.join(__dirname, '../public/no-aud.ts')),
|
|
formats: ALL_FORMATS,
|
|
});
|
|
|
|
const videoTrack = await input.getPrimaryVideoTrack();
|
|
assert(videoTrack);
|
|
|
|
const reader = new PacketReader(videoTrack);
|
|
|
|
const firstPacket = await reader.getFirst();
|
|
assert(firstPacket);
|
|
const secondPacket = await reader.getNext(firstPacket);
|
|
assert(secondPacket);
|
|
const thirdPacket = await reader.getNext(secondPacket);
|
|
assert(thirdPacket);
|
|
|
|
expect(firstPacket.data.byteLength).toBe(331774);
|
|
expect(secondPacket.data.byteLength).toBe(1749);
|
|
expect(thirdPacket.data.byteLength).toBe(4273);
|
|
});
|