/** Registers an audio raw data observer.
*
* @note Ensure that you call this method before joining a channel.
*
* @return
* - 0: Success.
* - < 0: Failure.
*/
public override int RegisterAudioRawDataObserver()
{
if (_irtcEngine == null)
{
return((int)ERROR_CODE.ERROR_NOT_INIT_ENGINE);
}
return(IRtcEngineNative.registerAudioRawDataObserver());
}
