Function gstreamer_rtsp_server_sys::gst_rtsp_permissions_add_permission_for_role

pub unsafe extern "C" fn gst_rtsp_permissions_add_permission_for_role(
    permissions: *mut GstRTSPPermissions, 
    role: *const c_char, 
    permission: *const c_char, 
    allowed: gboolean
)

This is supported on crate feature v1_14 only.