setSubscribeFallbackOption method

Future<int?> setSubscribeFallbackOption(SubscribeFallbackOptions option)

@detail api @author panjian.fishing @brief Sets the fallback option for subscribed RTC streams.
You can call this API to set whether to lower the resolution of currently subscribed stream under limited network conditions. @param option Fallback option, see SubscribeFallbackOptions{@link #SubscribeFallbackOptions} for more details. @return - 0: Success. - < 0 : Fail. See ReturnStatus{@link #ReturnStatus} for more details. @note - You must call this API before enterting the room. - After you enables the fallback, you will receive onSimulcastSubscribeFallback{@link #IRTCEngineEventHandler#onSimulcastSubscribeFallback} and onRemoteVideoSizeChanged{@link #IRTCEngineEventHandler#onRemoteVideoSizeChanged} when the resolution of your subscribed stream is lowered or restored. - You can alternatively set fallback options with distrubutions from server side, which is of higher priority.

Implementation

Future<int?> setSubscribeFallbackOption(
    SubscribeFallbackOptions option) async {
  $a() => ($instance as $p_a.RTCEngine).setSubscribeFallbackOption(
      t_SubscribeFallbackOptions.code_to_android(option));
  $i() => ($instance as $p_i.ByteRTCEngine).setSubscribeFallbackOption(
      t_SubscribeFallbackOptions.code_to_ios(option));

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