videomixer: Do not check if caps are empty when they are NULL

In the case the caps are actually NULL, we should just concider it the
same way as empty caps in that case.

diff --git a/gst/videomixer/videomixer2.c b/gst/videomixer/videomixer2.c
index ce3ba0a04225b99642183e1dc195a50f446093f2..c12f036813c82c6f02c5de18e2ec83181f462362 100644 (file)
--- a/gst/videomixer/videomixer2.c
+++ b/gst/videomixer/videomixer2.c
@@ -312,7 +312,7 @@ gst_videomixer2_update_converters (GstVideoMixer2 * mix)
 
   downstream_caps = gst_pad_get_allowed_caps (mix->srcpad);
 
-  if (gst_caps_is_empty (downstream_caps))
+  if (!downstream_caps || gst_caps_is_empty (downstream_caps))
     return FALSE;
 
   /* first find new preferred format */