media-engine: Don't crash on missing RTP depayloader

diff --git a/src/media-engines/gstreamer/rygel-gst-utils.vala b/src/media-engines/gstreamer/rygel-gst-utils.vala
index d7b3dd8..af664c1 100644 (file)
--- a/src/media-engines/gstreamer/rygel-gst-utils.vala
+++ b/src/media-engines/gstreamer/rygel-gst-utils.vala
@@ -103,6 +103,9 @@ internal abstract class Rygel.GstUtils {
                                                caps,
                                                PadDirection.SINK,
                                                false);
+        if (features == null) {
+            return null;
+        }
 
         // If most "fitting" depayloader was rtpdepay skip it because it is
         // just some kind of proxy.