10l (obmc_scratchpad not always initialize)

patch by (Gert Vervoort <gert.vervoort at hccnet dot nl>)


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@3816 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/h264.c

@@ -2540,6 +2540,8 @@ static int alloc_tables(H264Context *h){
         }
     }
 
+    s->obmc_scratchpad = NULL;
+
     return 0;
 fail:
     free_tables(h);