pub unsafe extern "C" fn gst_video_time_code_add_interval(
tc: *const GstVideoTimeCode,
tc_inter: *const GstVideoTimeCodeInterval,
) -> *mut GstVideoTimeCode
pub unsafe extern "C" fn gst_video_time_code_add_interval(
tc: *const GstVideoTimeCode,
tc_inter: *const GstVideoTimeCodeInterval,
) -> *mut GstVideoTimeCode