/** Release a VideoDeviceManager instance.
*
* @return
* - 0: Success.
* - < 0: Failure.
*/
public override int ReleaseAVideoDeviceManager()
{
if (_mEngine == null)
{
return((int)ERROR_CODE.ERROR_NOT_INIT_ENGINE);
}
return(IRtcEngineNative.releaseAVideoDeviceManager());
}