# TRTC_TranscodingConfigMode_Manual property Null safety

int TRTC_TranscodingConfigMode_Manual
final

Manual mode. It is most flexible and can implement various mixtranscoding schemes through free combinations, but it is most difficult to use. In this mode, you need to enter all the parameters in `TRTCTranscodingConfig` and listen on the `onUserVideoAvailable()` and `onUserAudioAvailable()` callbacks in `TRTCCloudDelegate` so as to constantly adjust the `mixUsers` parameter according to the audio/video status of each user with mic on in the current room; otherwise, mixtranscoding will fail.

## Implementation

    static final int TRTC_TranscodingConfigMode_Manual = 1;