pub unsafe extern "C" fn gst_rtsp_client_session_filter(
client: *mut GstRTSPClient,
func: GstRTSPClientSessionFilterFunc,
user_data: gpointer
) -> *mut GList
pub unsafe extern "C" fn gst_rtsp_client_session_filter(
client: *mut GstRTSPClient,
func: GstRTSPClientSessionFilterFunc,
user_data: gpointer
) -> *mut GList