media-engine: Prevent structure copying

diff --git a/src/media-engines/gstreamer/rygel-gst-utils.vala b/src/media-engines/gstreamer/rygel-gst-utils.vala
index af664c1..9165a82 100644 (file)
--- a/src/media-engines/gstreamer/rygel-gst-utils.vala
+++ b/src/media-engines/gstreamer/rygel-gst-utils.vala
@@ -121,7 +121,7 @@ internal abstract class Rygel.GstUtils {
     }
 
     private static bool need_rtp_depayloader (Caps caps) {
-        var structure = caps.get_structure (0);
+        unowned Structure structure = caps.get_structure (0);
 
         return structure.get_name () == "application/x-rtp";
     }