segfault fix

Originally committed as revision 3236 to svn://svn.ffmpeg.org/ffmpeg/trunk
21 years ago · 6258c7e674
parent cfcbbe48b6
commit 6258c7e674
1 changed files with 3 additions and 2 deletions
--- a/libavcodec/svq3.c
+++ b/libavcodec/svq3.c
@ -453,8 +453,9 @@ static int svq3_decode_mb (H264Context *h, unsigned int mb_type) {

      mb_type = MB_TYPE_SKIP;
    } else {
-      svq3_mc_dir (h, s->next_picture.mb_type[mb_xy], PREDICT_MODE, 0, 0);
-      svq3_mc_dir (h, s->next_picture.mb_type[mb_xy], PREDICT_MODE, 1, 1);
+      mb_type= FFMIN(s->next_picture.mb_type[mb_xy], 0);
+      svq3_mc_dir (h, mb_type, PREDICT_MODE, 0, 0);
+      svq3_mc_dir (h, mb_type, PREDICT_MODE, 1, 1);

      mb_type = MB_TYPE_16x16;
    }