Function gst::ffi::gst_message_parse_step_start

pub unsafe extern "C" fn gst_message_parse_step_start(
    message: *mut GstMessage, 
    active: *mut gboolean, 
    format: *mut GstFormat, 
    amount: *mut guint64, 
    rate: *mut gdouble, 
    flush: *mut gboolean, 
    intermediate: *mut gboolean
)