pad: add 'transfer full' and 'nullable' annotations to gst_pad_get_current_caps

and also change the description accordingly since function returns an
incremented caps object or NULL if there is no caps set.

https://bugzilla.gnome.org/show_bug.cgi?id=763912

diff --git a/gst/gstpad.c b/gst/gstpad.c
index f9822ea5595414ebe37311d44c6ad72989087102..7c02120097d73b81159aaa5faebf28f0a2120ff2 100644 (file)
--- a/gst/gstpad.c
+++ b/gst/gstpad.c
@@ -2632,7 +2632,8 @@ gst_pad_has_current_caps (GstPad * pad)
  * Gets the capabilities currently configured on @pad with the last
  * #GST_EVENT_CAPS event.
  *
- * Returns: the current caps of the pad with incremented ref-count.
+ * Returns: (transfer full) (nullable): the current caps of the pad with
+ * incremented ref-count or %NULL when pad has no caps. Unref after usage.
  */
 GstCaps *
 gst_pad_get_current_caps (GstPad * pad)