setPublishFallbackOption method

FutureOr<int> setPublishFallbackOption(ByteRTCPublishFallbackOption option)

@detail api @author panjian.fishing @brief Sets the fallback option for published audio & video streams.
You can call this API to set whether to automatically lower the resolution you set of the published streams under limited network conditions. @param option Fallback option, see ByteRTCPublishFallbackOption{@link #ByteRTCPublishFallbackOption}. @return - 0: Success. - < 0 : Fail. See ByteRTCReturnStatus{@link #ByteRTCReturnStatus} for more details @note - This API only works after you call setLocalSimulcastMode:{@link #ByteRTCEngine#setlocalsimulcastmode} to enable the mode of publishing multiple streams. - You must call this API before the user enters the room. - After calling this method, if there is a performance degradation or recovery due to poor performance or network conditions, the local end will receive early warnings through the rtcEngine:onPerformanceAlarms:info:mode:reason:sourceWantedData:{@link #ByteRTCEngineDelegate#rtcEngine:onPerformanceAlarms:info:mode:reason:sourceWantedData} callback to adjust the capture device. - After setting the fallback option, the user subscribed to the audio/video stream will receive rtcEngine:onSimulcastSubscribeFallback:info:event:{@link #ByteRTCEngineDelegate#rtcEngine:onSimulcastSubscribeFallback:info:event} when the audio/video stream published by the local user falls back or resumes from the fallback. - You can alternatively set fallback options in the console, which is of higher priority.

Implementation

FutureOr<int> setPublishFallbackOption(
    ByteRTCPublishFallbackOption option) async {
  return await nativeCall('setPublishFallbackOption:', [option.$value]);
}