internal static extern void rs2_get_video_stream_intrinsics(StreamProfileHandle mode, out Intrinsics intrinsics, out RsError error);
internal static extern void rs2_get_extrinsics( StreamProfileHandle from, StreamProfileHandle to, out Extrinsics extrin, out RsError error);
internal static extern void rs2_get_motion_intrinsics(StreamProfileHandle mode, out MotionDeviceIntrinsics intrinsics, out RsError error);
internal static extern int rs2_is_stream_profile_default(StreamProfileHandle mode, out RsError error);
internal static extern void rs2_open(SensorHandle device, StreamProfileHandle profile, out RsError error);