colorbalance: add missing annotation for list_channels()

https://bugzilla.gnome.org/show_bug.cgi?id=720999

diff --git a/gst-libs/gst/video/colorbalance.c b/gst-libs/gst/video/colorbalance.c
index ebae5a156f881fd442c2b8f215f54f9ec251f643..a0adacf098c0bb015d9f8a0b4a470d1f13931856 100644 (file)
--- a/gst-libs/gst/video/colorbalance.c
+++ b/gst-libs/gst/video/colorbalance.c
@@ -114,12 +114,13 @@ gst_color_balance_base_init (GstColorBalanceInterface * iface)
 /**
  * gst_color_balance_list_channels:
  * @balance: A #GstColorBalance instance
- * 
+ *
  * Retrieve a list of the available channels.
  *
- * Returns: A GList containing pointers to #GstColorBalanceChannel objects.
- *          The list is owned by the #GstColorBalance instance and must not
- *          be freed.
+ * Returns: (element-type GstColorBalanceChannel) (tranfer none): A
+ *          GList containing pointers to #GstColorBalanceChannel
+ *          objects. The list is owned by the #GstColorBalance
+ *          instance and must not be freed.
  */
 const GList *
 gst_color_balance_list_channels (GstColorBalance * balance)