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Define DTS codec, add muxing and demuxing support across ISOBMFF, Matroska, and MPEG-TS, add DTS encode/decode support to @mediabunny/server

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Vanilagy
2026-08-15 16:19:12 +02:00
parent ae66f01566
commit 914907b5db
27 changed files with 1182 additions and 56 deletions
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docs/guide/supported-formats-and-codecs.md
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@@ -51,6 +51,7 @@ Mediabunny ships with built-in decoders and encoders for all audio PCM codecs, m
- `'flac'` - Free Lossless Audio Codec (FLAC) [^flac]
- `'ac3'` - Dolby Digital (AC-3) [^ac3]
- `'eac3'` - Dolby Digital Plus (E-AC-3) [^ac3]
- `'dts'` - DTS Coherent Acoustics [^dts]
- `'pcm-u8'` - 8-bit unsigned PCM
- `'pcm-s8'` - 8-bit signed PCM
- `'pcm-s16'` - 16-bit little-endian signed PCM
@@ -89,6 +90,7 @@ Not all codecs can be used with all containers. The following table specifies th
| `'flac'` | ✓ | ✓ | ✓ | | | | | | ✓ | |
| `'ac3'` | ✓ | ✓ | ✓ | | | | | | | ✓ |
| `'eac3'` | ✓ | ✓ | ✓ | | | | | | | ✓ |
| `'dts'` | ✓ | ✓ | ✓ | | | | | | | ✓ |
| `'pcm-u8'` | | ✓ | ✓ | | | | ✓ | | | |
| `'pcm-s8'` | | ✓ | | | | | | | | |
| `'pcm-s16'` | ✓ | ✓ | ✓ | | | | ✓ | | | |
@@ -112,6 +114,7 @@ For HLS, the supported codecs depend on the segment format chosen.
[^mp3]: MP3 encoding is not supported by WebCodecs. You can polyfill it with the [`@mediabunny/mp3-encoder`](./extensions/mp3-encoder) extension package.
[^flac]: FLAC encoding is not supported by WebCodecs. You can polyfill it with the [`@mediabunny/flac-encoder`](./extensions/flac-encoder) extension package.
[^ac3]: AC-3 and E-AC-3 are not natively supported by WebCodecs. To encode or decode these codecs, you can use the [`@mediabunny/ac3`](./extensions/ac3) extension package.
[^dts]: DTS is not supported by WebCodecs. The [`@mediabunny/server`](./extensions/server) extension package provides both decoding and encoding support for server-side environments.
[^webm]: WebM only supports a small subset of the codecs supported by Matroska. However, this library can technically read all codecs from a WebM that are supported by Matroska.
[^webvtt]: WebVTT can only be written, not read.
@@ -127,7 +130,7 @@ import { canEncode } from 'mediabunny';
canEncode('avc'); // => Promise<boolean>
canEncode('opus'); // => Promise<boolean>
```
Video codecs are checked using 1280x720 @1Mbps, while audio codecs are checked using 2 channels, 48 kHz @128kbps.
Video codecs are checked using 1280x720, while audio codecs are checked using 2 channels at 48 kHz.
You can also check encodability using specific configurations:
```ts