public static unsafe extern uint Transceiver_GetRemoteVideoTrack(TransceiverHandle handle, out IntPtr trackHandle);
public static unsafe extern uint Transceiver_GetLocalVideoTrack(TransceiverHandle handle, out LocalVideoTrackHandle trackHandle);
public static unsafe extern uint Transceiver_SetDirection(TransceiverHandle handle, Transceiver.Direction newDirection);
public static unsafe extern uint Transceiver_SetLocalAudioTrack(TransceiverHandle handle, LocalAudioTrackHandle trackHandle);
public static unsafe extern void Transceiver_RegisterStateUpdatedCallback(TransceiverHandle handle, StateUpdatedDelegate callback, IntPtr userData);