pub unsafe extern "C" fn gst_rtsp_stream_request_aux_sender(
stream: *mut GstRTSPStream,
sessid: c_uint
) -> *mut GstElement
pub unsafe extern "C" fn gst_rtsp_stream_request_aux_sender(
stream: *mut GstRTSPStream,
sessid: c_uint
) -> *mut GstElement