navigation: fix structure leak if subclass doesn't implement send_event()

The send_event() implementation is supposed to consume @structure.

https://bugzilla.gnome.org/show_bug.cgi?id=748903

diff --git a/gst-libs/gst/video/navigation.c b/gst-libs/gst/video/navigation.c
index 3eb97dc..54bac85 100644 (file)
--- a/gst-libs/gst/video/navigation.c
+++ b/gst-libs/gst/video/navigation.c
@@ -115,6 +115,8 @@ gst_navigation_send_event (GstNavigation * navigation, GstStructure * structure)
 
   if (iface->send_event) {
     iface->send_event (navigation, structure);
+  } else {
+    gst_structure_free (structure);
   }
 }