pub unsafe extern "C" fn gst_rtsp_stream_transport_send_rtcp(
trans: *mut GstRTSPStreamTransport,
buffer: *mut GstBuffer,
) -> gboolean
pub unsafe extern "C" fn gst_rtsp_stream_transport_send_rtcp(
trans: *mut GstRTSPStreamTransport,
buffer: *mut GstBuffer,
) -> gboolean