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Implement the bulk of the MPEG-TS demuxer, add a bunch of tests, and a few other things

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Vanilagy
2026-01-14 12:05:39 +01:00
parent f363fe50e2
commit 888441232d
22 changed files with 2023 additions and 61 deletions
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src/input-format.ts
+6 -6
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@@ -23,10 +23,10 @@ import { MatroskaDemuxer } from './matroska/matroska-demuxer';
import { Mp3Demuxer } from './mp3/mp3-demuxer';
import { FRAME_HEADER_SIZE } from '../shared/mp3-misc';
import { ID3_V2_HEADER_SIZE, readId3V2Header } from './id3';
import { readNextFrameHeader } from './mp3/mp3-reader';
import { readNextMp3FrameHeader } from './mp3/mp3-reader';
import { OggDemuxer } from './ogg/ogg-demuxer';
import { WaveDemuxer } from './wave/wave-demuxer';
import { MAX_FRAME_HEADER_SIZE, MIN_FRAME_HEADER_SIZE, readFrameHeader } from './adts/adts-reader';
import { MAX_FRAME_HEADER_SIZE, MIN_FRAME_HEADER_SIZE, readAdtsFrameHeader } from './adts/adts-reader';
import { AdtsDemuxer } from './adts/adts-demuxer';
import { readAscii } from './reader';
import { FlacDemuxer } from './flac/flac-demuxer';
@@ -281,7 +281,7 @@ export class Mp3InputFormat extends InputFormat {
currentPos = slice.filePos + id3V2Header.size;
}
const firstResult = await readNextFrameHeader(input._reader, currentPos, currentPos + 4096);
const firstResult = await readNextMp3FrameHeader(input._reader, currentPos, currentPos + 4096);
if (!firstResult) {
return false;
}
@@ -295,7 +295,7 @@ export class Mp3InputFormat extends InputFormat {
// Fine, we found one frame header, but we're still not entirely sure this is MP3. Let's check if we can find
// another header right after it:
const secondResult = await readNextFrameHeader(input._reader, currentPos, currentPos + FRAME_HEADER_SIZE);
const secondResult = await readNextMp3FrameHeader(input._reader, currentPos, currentPos + FRAME_HEADER_SIZE);
if (!secondResult) {
return false;
}
@@ -444,7 +444,7 @@ export class AdtsInputFormat extends InputFormat {
if (slice instanceof Promise) slice = await slice;
if (!slice) return false;
const firstHeader = readFrameHeader(slice);
const firstHeader = readAdtsFrameHeader(slice);
if (!firstHeader) {
return false;
}
@@ -453,7 +453,7 @@ export class AdtsInputFormat extends InputFormat {
if (slice instanceof Promise) slice = await slice;
if (!slice) return false;
const secondHeader = readFrameHeader(slice);
const secondHeader = readAdtsFrameHeader(slice);
if (!secondHeader) {
return false;
}