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Add Mediabunny Codec Registry

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Vanilagy
2026-02-12 11:56:37 +01:00
parent de9a4bbc23
commit 7cc26edacb
25 changed files with 649 additions and 21 deletions
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docs/guide/media-sources.md
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@@ -74,7 +74,7 @@ type VideoEncodingConfig = {
- `bitrateMode`: Can be used to control constant vs. variable bitrate.
- `latencyMode`: The latency mode as specified by the WebCodecs API. Browsers default to `quality`. Media stream-driven video sources will automatically use the `realtime` setting.
- `keyFrameInterval`: The maximum interval in seconds between two adjacent key frames. Defaults to 5 seconds. More frequent key frames improve seeking behavior but increase file size. When using multiple video tracks, this value should be set to the same value for all tracks.
- `fullCodecString`: Allows you to optionally specify the full codec string used by the video encoder, as specified in the [WebCodecs Codec Registry](https://www.w3.org/TR/webcodecs-codec-registry/). For example, you may set it to `'avc1.42001f'` when using AVC. Keep in mind that the codec string must still match the codec specified in `codec`. If you don't set this field, a codec string will be generated automatically.
- `fullCodecString`: Allows you to optionally specify the full codec string used by the video encoder, as specified in the [Mediabunny Codec Registry](/codec-registry/overview). For example, you may set it to `'avc1.42001f'` when using AVC. Keep in mind that the codec string must still match the codec specified in `codec`. If you don't set this field, a codec string will be generated automatically.
- `hardwareAcceleration`: A hint that configures the hardware acceleration method of this codec. This is best left on `'no-preference'`.
- `scalabilityMode`: An encoding scalability mode identifier as defined by [WebRTC-SVC](https://w3c.github.io/webrtc-svc/#scalabilitymodes*).
- `contentHint`: An encoding video content hint as defined by [mst-content-hint](https://w3c.github.io/mst-content-hint/#video-content-hints).
@@ -104,7 +104,7 @@ type AudioEncodingConfig = {
- `codec`: The [audio codec](./supported-formats-and-codecs#audio-codecs) used for encoding. Can be omitted for uncompressed PCM codecs.
- `bitrate`: The target number of bits per second. Alternatively, this can be a [subjective quality](#subjective-qualities).
- `bitrateMode`: Can be used to control constant vs. variable bitrate.
- `fullCodecString`: Allows you to optionally specify the full codec string used by the audio encoder, as specified in the [WebCodecs Codec Registry](https://www.w3.org/TR/webcodecs-codec-registry/). For example, you may set it to `'mp4a.40.2'` when using AAC. Keep in mind that the codec string must still match the codec specified in `codec`. If you don't set this field, a codec string will be generated automatically.
- `fullCodecString`: Allows you to optionally specify the full codec string used by the audio encoder, as specified in the [Mediabunny Codec Registry](/codec-registry/overview). For example, you may set it to `'mp4a.40.2'` when using AAC. Keep in mind that the codec string must still match the codec specified in `codec`. If you don't set this field, a codec string will be generated automatically.
- `onEncodedPacket`: Called for each successfully encoded packet. Useful for determining encoding progress.
- `onEncoderConfig`: Called when the internal encoder config, as used by the WebCodecs API, is created. You can use this to introspect the full codec string.
@@ -240,7 +240,7 @@ await packetSource.add(firstPacket, {
});
```
`codec`, `codedWidth`, and `codedHeight` are required for all codecs, whereas `description` is required for some codecs. Additional fields, such as `colorSpace`, are optional. The [WebCodecs Codec Registry](https://www.w3.org/TR/webcodecs-codec-registry/) specifies the formats of `codec` and `description` for each video codec, which you must adhere to.
`codec`, `codedWidth`, and `codedHeight` are required for all codecs, whereas `description` is required for some codecs. Additional fields, such as `colorSpace`, are optional. The [Mediabunny Codec Registry](/codec-registry/overview) specifies the formats of `codec` and `description` for each video codec, which you **must** adhere to.
#### B-frames
@@ -397,7 +397,7 @@ await packetSource.add(firstPacket, {
});
```
`codec`, `numberOfChannels`, and `sampleRate` are required for all codecs, whereas `description` is required for some codecs. The [WebCodecs Codec Registry](https://www.w3.org/TR/webcodecs-codec-registry/) specifies the formats of `codec` and `description` for each audio codec, which you must adhere to.
`codec`, `numberOfChannels`, and `sampleRate` are required for all codecs, whereas `description` is required for some codecs. The [Mediabunny Codec Registry](/codec-registry/overview) specifies the formats of `codec` and `description` for each audio codec, which you must adhere to.
## Subtitle sources