gboolean            gst_element_link_pads_filtered      (GstElement *src,
                                                          const gchar *srcpadname,
                                                          GstElement *dest,
                                                          const gchar *destpadname,
                                                          GstCaps *filter);

gboolean            gst_element_link_pads_filtered      (GstElement *src,
                                                          const gchar *srcpadname,
                                                          GstElement *dest,
                                                          GstCaps *filter);

gboolean            gst_element_link_pads_filtered      (GstElement *src,
                                                          GstElement *dest,
                                                          const gchar *destpadname,
                                                          GstCaps *filter);