AudioFrameObserver
The audio frame observer.
You can call registerAudioFrameObserver to register or unregister the AudioFrameObserver audio frame observer.
onPlaybackAudioFrameBeforeMixing
Retrieves the audio frame of a specified user before mixing.
final void Function(String channelId, int uid, AudioFrame audioFrame)? onPlaybackAudioFrameBeforeMixing;
Attention: Due to the limitations of Flutter, this callback does not support sending processed audio data back to the SDK.
Parameters
- channelId
- The channel ID.
- uid
- The user ID of the specified user.
- audioFrame
- The raw audio data. See AudioFrame.