Function gst::ffi::gst_video_event_new_downstream_force_key_unit

pub unsafe extern "C" fn gst_video_event_new_downstream_force_key_unit(
    timestamp: GstClockTime, 
    stream_time: GstClockTime, 
    running_time: GstClockTime, 
    all_headers: gboolean, 
    count: guint
) -> *mut GstEvent