--- a/gst_plugins_base/gst-libs/gst/interfaces/mixer.h	Wed Mar 31 22:03:18 2010 +0300
+++ b/gst_plugins_base/gst-libs/gst/interfaces/mixer.h	Tue Aug 31 15:30:33 2010 +0300
@@ -85,18 +85,26 @@
 /**
  * GstMixerFlags:
  * @GST_MIXER_FLAG_NONE: No flags
- * @GST_MIXER_FLAG_AUTO_NOTIFICATIONS: The mixer implementation automatically sends
- *    notification messages.
+ * @GST_MIXER_FLAG_AUTO_NOTIFICATIONS: The mixer implementation automatically
+ *    sends notification messages.
+ * @GST_MIXER_FLAG_HAS_WHITELIST: The mixer implementation flags tracks that
+ *    should be displayed by default (whitelisted). Since: 0.10.23
+ * @GST_MIXER_FLAG_GROUPING: The mixer implementation will leave some controls
+ *    marked without either input or output.  Controls marked as input or
+ *    output should be grouped with input & output sliders, even if they
+ *    are options or bare switches. Since: 0.10.23
  * 
- * Flags for supported features. Whether the element automatically sends 
- * notifications on the bus is the only one for now. 
+ * Flags indicating which optional features are supported by a mixer
+ * implementation.
  *
  * Since: 0.10.14
  */
 typedef enum
 {
   GST_MIXER_FLAG_NONE                = 0,
-  GST_MIXER_FLAG_AUTO_NOTIFICATIONS  = (1<<0)
+  GST_MIXER_FLAG_AUTO_NOTIFICATIONS  = (1<<0),
+  GST_MIXER_FLAG_HAS_WHITELIST       = (1<<1),
+  GST_MIXER_FLAG_GROUPING            = (1<<2),
 } GstMixerFlags;
 
 struct _GstMixerClass {
@@ -250,11 +258,15 @@
 
 
 void            gst_mixer_options_list_changed (GstMixer        *mixer,
-                                                GstMixerOptions *opts);
 #ifdef __SYMBIAN32__
 IMPORT_C
 #endif
+                                                GstMixerOptions *opts);
 
+GstMixerType    gst_mixer_get_mixer_type  (GstMixer *mixer);
+#ifdef __SYMBIAN32__
+IMPORT_C
+#endif
 
 
 GstMixerFlags   gst_mixer_get_mixer_flags (GstMixer *mixer);