diff -r 71e347f905f2 -r 4a7fac7dd34a gstreamer_core/gst/gstquery.h
--- a/gstreamer_core/gst/gstquery.h	Fri Mar 19 09:35:09 2010 +0200
+++ b/gstreamer_core/gst/gstquery.h	Fri Apr 16 15:15:52 2010 +0300
@@ -46,6 +46,11 @@
  * @GST_QUERY_SEGMENT: segment start/stop positions
  * @GST_QUERY_CONVERT: convert values between formats
  * @GST_QUERY_FORMATS: query supported formats for convert
+ * @GST_QUERY_BUFFERING: query available media for efficient seeking. Since
+ * 0.10.20.
+ * @GST_QUERY_CUSTOM: a custom application or element defined query. Since
+ * 0.10.22.
+ * @GST_QUERY_URI: query the URI of the source or sink. Since 0.10.22.
  *
  * Standard predefined Query types
  */
@@ -61,9 +66,28 @@
   GST_QUERY_SEEKING,
   GST_QUERY_SEGMENT,
   GST_QUERY_CONVERT,
-  GST_QUERY_FORMATS
+  GST_QUERY_FORMATS,
+  GST_QUERY_BUFFERING,
+  GST_QUERY_CUSTOM,
+  GST_QUERY_URI
 } GstQueryType;
 
+/**
+ * GstBufferingMode:
+ * @GST_BUFFERING_STREAM: a small amount of data is buffered
+ * @GST_BUFFERING_DOWNLOAD: the stream is being downloaded
+ * @GST_BUFFERING_TIMESHIFT: the stream is being downloaded in a ringbuffer
+ * @GST_BUFFERING_LIVE: the stream is a live stream
+ *
+ * The different types of buffering methods.
+ */
+typedef enum {
+  GST_BUFFERING_STREAM,
+  GST_BUFFERING_DOWNLOAD,
+  GST_BUFFERING_TIMESHIFT,
+  GST_BUFFERING_LIVE
+} GstBufferingMode;
+
 typedef struct _GstQueryTypeDefinition GstQueryTypeDefinition;
 typedef struct _GstQuery GstQuery;
 typedef struct _GstQueryClass GstQueryClass;
@@ -90,8 +114,10 @@
 #define GST_IS_QUERY_CLASS(klass)              (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_QUERY))
 #define GST_QUERY_GET_CLASS(obj)               (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_QUERY, GstQueryClass))
 #define GST_QUERY(obj)                         (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_QUERY, GstQuery))
+#define GST_QUERY_CAST(obj)                    ((GstQuery*)(obj)) /* only since 0.10.23 */
 #define GST_QUERY_CLASS(klass)                 (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_QUERY, GstQueryClass))
 
+
 /**
  * GST_QUERY_TYPE:
  * @query: the query to query
@@ -128,14 +154,14 @@
 
   GstStructure *structure;
 
-  /*< private > */
+  /*< private >*/
   gpointer _gst_reserved;
 };
 
 struct _GstQueryClass {
   GstMiniObjectClass mini_object_class;
 
-  /*< private > */
+  /*< private >*/
   gpointer _gst_reserved[GST_PADDING];
 };
 #ifdef __SYMBIAN32__
@@ -197,8 +223,19 @@
  * @q: a #GstQuery to increase the refcount of.
  *
  * Increases the refcount of the given query by one.
+ *
+ * Returns: @q
  */
-#define         gst_query_ref(q)		GST_QUERY (gst_mini_object_ref (GST_MINI_OBJECT (q)))
+#ifdef _FOOL_GTK_DOC_
+G_INLINE_FUNC GstQuery * gst_query_ref (GstQuery * q);
+#endif
+
+static inline GstQuery *
+gst_query_ref (GstQuery * q)
+{
+  return GST_QUERY (gst_mini_object_ref (GST_MINI_OBJECT_CAST (q)));
+}
+
 /**
  * gst_query_unref:
  * @q: a #GstQuery to decrease the refcount of.
@@ -206,7 +243,15 @@
  * Decreases the refcount of the query. If the refcount reaches 0, the query
  * will be freed.
  */
-#define         gst_query_unref(q)		gst_mini_object_unref (GST_MINI_OBJECT (q))
+#ifdef _FOOL_GTK_DOC_
+G_INLINE_FUNC void gst_query_unref (GstQuery * q);
+#endif
+
+static inline void
+gst_query_unref (GstQuery * q)
+{
+  gst_mini_object_unref (GST_MINI_OBJECT_CAST (q));
+}
 
 /* copy query */
 /**
@@ -215,8 +260,19 @@
  *
  * Copies the given query using the copy function of the parent #GstData
  * structure.
+ *
+ * Returns: a new copy of @q.
  */
-#define         gst_query_copy(q)		GST_QUERY (gst_mini_object_copy (GST_MINI_OBJECT (q)))
+#ifdef _FOOL_GTK_DOC_
+G_INLINE_FUNC GstQuery * gst_query_copy (const GstQuery * q);
+#endif
+
+static inline GstQuery *
+gst_query_copy (const GstQuery * q)
+{
+  return GST_QUERY (gst_mini_object_copy (GST_MINI_OBJECT_CAST (q)));
+}
+
 /**
  * gst_query_make_writable:
  * @q: a #GstQuery to make writable
@@ -377,6 +433,69 @@
 
 void            gst_query_parse_formats_nth     (GstQuery *query, guint nth, GstFormat *format);
 
+/* buffering query */
+#ifdef __SYMBIAN32__
+IMPORT_C
+#endif
+
+GstQuery*       gst_query_new_buffering           (GstFormat format);
+#ifdef __SYMBIAN32__
+IMPORT_C
+#endif
+
+void            gst_query_set_buffering_percent   (GstQuery *query, gboolean busy, gint percent);
+#ifdef __SYMBIAN32__
+IMPORT_C
+#endif
+
+void            gst_query_parse_buffering_percent (GstQuery *query, gboolean *busy, gint *percent);
+#ifdef __SYMBIAN32__
+IMPORT_C
+#endif
+
+
+void            gst_query_set_buffering_stats     (GstQuery *query, GstBufferingMode mode,
+                                                   gint avg_in, gint avg_out, 
+						   gint64 buffering_left);
+#ifdef __SYMBIAN32__
+IMPORT_C
+#endif
+ 
+void            gst_query_parse_buffering_stats    (GstQuery *query, GstBufferingMode *mode,
+                                                   gint *avg_in, gint *avg_out, 
+						   gint64 *buffering_left);
+#ifdef __SYMBIAN32__
+IMPORT_C
+#endif
+ 
+
+void            gst_query_set_buffering_range     (GstQuery *query, GstFormat format,
+                                                   gint64 start, gint64 stop,
+						   gint64 estimated_total);
+#ifdef __SYMBIAN32__
+IMPORT_C
+#endif
+
+void            gst_query_parse_buffering_range   (GstQuery *query, GstFormat *format,
+                                                   gint64 *start, gint64 *stop,
+						   gint64 *estimated_total);
+/* URI query */
+#ifdef __SYMBIAN32__
+IMPORT_C
+#endif
+
+GstQuery *      gst_query_new_uri                 (void);
+#ifdef __SYMBIAN32__
+IMPORT_C
+#endif
+
+void            gst_query_parse_uri               (GstQuery *query, gchar **uri);
+#ifdef __SYMBIAN32__
+IMPORT_C
+#endif
+
+void            gst_query_set_uri                 (GstQuery *query, const gchar *uri);
+
 G_END_DECLS
 
 #endif /* __GST_QUERY_H__ */