gst/rtsp/: Use rank to filter out extensions.

Original commit message from CVS:
* gst/rtsp/gstrtspext.c: (gst_rtsp_ext_list_filter),
(gst_rtsp_ext_list_stream_select):
* gst/rtsp/gstrtspext.h:
* gst/rtsp/gstrtspsrc.c: (gst_rtspsrc_setup_streams):
Use rank to filter out extensions.
Add url to stream_select interface call.

ChangeLog

+2007-07-26  Wim Taymans  <wim.taymans@gmail.com>
+
+	* gst/rtsp/gstrtspext.c: (gst_rtsp_ext_list_filter),
+	(gst_rtsp_ext_list_stream_select):
+	* gst/rtsp/gstrtspext.h:
+	* gst/rtsp/gstrtspsrc.c: (gst_rtspsrc_setup_streams):
+	Use rank to filter out extensions.
+	Add url to stream_select interface call.
+
 2007-07-25  Wim Taymans  <wim.taymans@gmail.com>
 
 	* gst/rtsp/Makefile.am:

gst/rtsp/gstrtspext.c

@@ -51,6 +51,7 @@ static gboolean
 gst_rtsp_ext_list_filter (GstPluginFeature * feature, gpointer user_data)
 {
   GstElementFactory *factory;
+  guint rank;
 
   /* we only care about element factories */
   if (!GST_IS_ELEMENT_FACTORY (feature))
@@ -61,6 +62,11 @@ gst_rtsp_ext_list_filter (GstPluginFeature * feature, gpointer user_data)
   if (!gst_element_factory_has_interface (factory, "GstRTSPExtension"))
     return FALSE;
 
+  /* only select elements with autoplugging rank */
+  rank = gst_plugin_feature_get_rank (feature);
+  if (rank < GST_RANK_MARGINAL)
+    return FALSE;
+
   return TRUE;
 }
 
@@ -202,7 +208,7 @@ gst_rtsp_ext_list_get_transports (GstRTSPExtensionList * ext,
 }
 
 GstRTSPResult
-gst_rtsp_ext_list_stream_select (GstRTSPExtensionList * ext)
+gst_rtsp_ext_list_stream_select (GstRTSPExtensionList * ext, GstRTSPUrl * url)
 {
   GList *walk;
   GstRTSPResult res = GST_RTSP_OK;
@@ -210,7 +216,7 @@ gst_rtsp_ext_list_stream_select (GstRTSPExtensionList * ext)
   for (walk = ext->extensions; walk; walk = g_list_next (walk)) {
     GstRTSPExtension *elem = (GstRTSPExtension *) walk->data;
 
-    res = gst_rtsp_extension_stream_select (elem);
+    res = gst_rtsp_extension_stream_select (elem, url);
   }
   return res;
 }

gst/rtsp/gstrtspext.h

@@ -70,7 +70,7 @@ GstRTSPResult gst_rtsp_ext_list_setup_media       (GstRTSPExtensionList *ext, Gs
 gboolean      gst_rtsp_ext_list_configure_stream  (GstRTSPExtensionList *ext, GstCaps *caps);
 GstRTSPResult gst_rtsp_ext_list_get_transports    (GstRTSPExtensionList *ext, GstRTSPLowerTrans protocols,
                                                    gchar **transport);
-GstRTSPResult gst_rtsp_ext_list_stream_select     (GstRTSPExtensionList *ext);
+GstRTSPResult gst_rtsp_ext_list_stream_select     (GstRTSPExtensionList *ext, GstRTSPUrl *url);
 
 G_END_DECLS
 

gst/rtsp/gstrtspsrc.c

@@ -3305,7 +3305,7 @@ gst_rtspsrc_setup_streams (GstRTSPSrc * src)
     }
   }
 
-  gst_rtsp_ext_list_stream_select (src->extensions);
+  gst_rtsp_ext_list_stream_select (src->extensions, src->url);
 
   /* we need to activate the streams when we detect activity */
   src->need_activate = TRUE;