void gst_event_set_stream_config_setup_data (GstEvent * event, GstBuffer * buf);
-void gst_event_parse_stream_config_setup_data (GstEvent * event, GstBuffer ** buf);
+gboolean gst_event_parse_stream_config_setup_data (GstEvent * event, GstBuffer ** buf);
void gst_event_add_stream_config_header (GstEvent * event, GstBuffer * buf);
guint gst_event_get_n_stream_config_headers (GstEvent * event);
-void gst_event_parse_nth_stream_config_header (GstEvent * event, guint index, GstBuffer ** buf);
+gboolean gst_event_parse_nth_stream_config_header (GstEvent * event, guint index, GstBuffer ** buf);
/* segment event */
GstEvent* gst_event_new_segment (const GstSegment *segment) G_GNUC_MALLOC;