public static extern void RemoteVideoTrack_RegisterArgb32FrameCallback(RemoteVideoTrackHandle trackHandle, LocalVideoTrackInterop.Argb32VideoFrameUnmanagedCallback callback, IntPtr userData);
public static extern int RemoteVideoTrack_IsEnabled(RemoteVideoTrackHandle trackHandle);
public static extern void RemoteVideoTrack_RegisterI420AFrameCallback(RemoteVideoTrackHandle trackHandle, VideoTrackSourceInterop.I420AVideoFrameUnmanagedCallback callback, IntPtr userData);