* feat: Add framerate to RTMP onMetaData
Adds framerate field to RTMP onMetaData for RTMP servers like
nginx-rtmp-module to correctly parse stream frame rate statistics.
The framerate value is synchronized from VideoCodec.expectedFrameRate
when MediaMixer.setFrameRate() is called.
* feat: Move expectedFrameRate to VideoCodecSettings and add framerate to RTMP metadata
- Move expectedFrameRate from VideoCodec to VideoCodecSettings
- Remove setExpectedFrameRate() method from OutgoingStream and StreamConvertible
- Add framerate field to RTMP onMetaData message
- Synchronize expectedFrameRate in MediaMixer.setFrameRate() and addOutput()
- Add helper methods for frame rate synchronization
- Make MediaMixer.defaultFrameRate public
* feat: Rename expectedFrameRate to defaultFrameRate and add framerate to RTMP metadata
- Rename VideoCodecSettings.expectedFrameRate to defaultFrameRate to represent
a different concept from MediaMixer.frameRate
- Remove synchronization code from MediaMixer.setFrameRate() and addOutput()
to allow independent frame rate management per stream
- Remove VideoCodec.expectedFrameRate and OutgoingStream.expectedFrameRate properties
- Add framerate field to RTMP onMetaData message for RTMP servers like
nginx-rtmp-module to correctly parse stream frame rate statistics
- Make MediaMixer.defaultFrameRate public
This change allows each stream to have its own independent defaultFrameRate
(e.g., Service A at 30 FPS, Service B at 60 FPS) while MediaMixer can output
at a different frame rate. The defaultFrameRate is used both for VideoToolbox
encoder configuration and RTMP metadata.
Breaking changes:
- VideoCodecSettings.expectedFrameRate renamed to defaultFrameRate
- MediaMixer.addOutput() no longer synchronizes frame rate (streams must
explicitly set defaultFrameRate via VideoCodecSettings init or setVideoSettings())
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