/* pad functions */
void gst_pad_use_fixed_caps (GstPad *pad);
-GstCaps* gst_pad_proxy_getcaps (GstPad * pad, GstCaps * filter);
+gboolean gst_pad_proxy_query_accept_caps (GstPad *pad, GstQuery *query);
+gboolean gst_pad_proxy_query_caps (GstPad *pad, GstQuery *query);
GstElement* gst_pad_get_parent_element (GstPad *pad);