registerAudioFrameObserver method

Future<int?> registerAudioFrameObserver(
  1. IMediaPlayerAudioFrameObserver observer
)

@detail api @brief Register an observer to receive related callbacks when the local media file is mixing. @param observer See IMediaPlayerAudioFrameObserver{@link #IMediaPlayerAudioFrameObserver}. @return - 0: Success. - < 0 : Fail. See ReturnStatus{@link #ReturnStatus} for more details. @note The API is valid for audio file, not PCM data.

Implementation

Future<int?> registerAudioFrameObserver(
    IMediaPlayerAudioFrameObserver observer) async {
  $a() => ($instance as $p_a.IMediaPlayer).registerAudioFrameObserver(
      packObject(observer, () => android_IMediaPlayerAudioFrameObserver()));
  $i() => ($instance as $p_i.ByteRTCMediaPlayer).registerAudioFrameObserver(
      packObject(observer, () => ios_IMediaPlayerAudioFrameObserver()));

  if (Platform.isAndroid) {
    return $a();
  } else if (Platform.isIOS) {
    return $i();
  } else {
    throw UnsupportedError(
        'Not Support Platform ${Platform.operatingSystem}');
  }
}