pub unsafe extern "C" fn ges_marker_list_move(
list: *mut GESMarkerList,
marker: *mut GESMarker,
position: GstClockTime,
) -> gbooleanpub unsafe extern "C" fn ges_marker_list_move(
list: *mut GESMarkerList,
marker: *mut GESMarker,
position: GstClockTime,
) -> gboolean