pub unsafe extern "C" fn gst_video_content_light_level_from_caps(
linfo: *mut GstVideoContentLightLevel,
caps: *const GstCaps
) -> gboolean
pub unsafe extern "C" fn gst_video_content_light_level_from_caps(
linfo: *mut GstVideoContentLightLevel,
caps: *const GstCaps
) -> gboolean