pub unsafe extern "C" fn gst_validate_scenario_execute_seek(
    scenario: *mut GstValidateScenario,
    action: *mut GstValidateAction,
    rate: c_double,
    format: GstFormat,
    flags: GstSeekFlags,
    start_type: GstSeekType,
    start: GstClockTime,
    stop_type: GstSeekType,
    stop: GstClockTime
) -> c_int