Merge commit '674fa491'

* commit '674fa491':
  avconv: do not call avcodec_get_frame_defaults()

Conflicts:
	ffmpeg.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

ffmpeg.c

@@ -1080,8 +1080,7 @@ static int reap_filters(void)
 
         if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
             return AVERROR(ENOMEM);
-        } else
-            avcodec_get_frame_defaults(ost->filtered_frame);
+        }
         filtered_frame = ost->filtered_frame;
 
         while (1) {