GstCaps * gst_pad_query_caps (GstPad *pad, GstCaps *filter);
gboolean gst_pad_query_accept_caps (GstPad *pad, GstCaps *caps);
+gboolean gst_pad_link_maybe_ghosting (GstPad *src,
+ GstPad *sink);
gboolean gst_pad_link_maybe_ghosting_full (GstPad *src,
GstPad *sink,
GstPadLinkCheck flags);