Function gstreamer_rtsp_sys::gst_rtsp_message_get_header

pub unsafe extern "C" fn gst_rtsp_message_get_header(
    msg: *const GstRTSPMessage,
    field: GstRTSPHeaderField,
    value: *mut *mut c_char,
    indx: c_int,
) -> GstRTSPResult