Function gst_ rtsp_ stream_ has_ control 
Source pub unsafe extern "C" fn gst_rtsp_stream_has_control(
    stream: *mut GstRTSPStream,
    control: *const c_char,
) -> gbooleanpub unsafe extern "C" fn gst_rtsp_stream_has_control(
    stream: *mut GstRTSPStream,
    control: *const c_char,
) -> gboolean