* prevent crash in decoder

Originally committed as revision 179 to svn://svn.ffmpeg.org/ffmpeg/trunk
24 years ago · 525782f33f
parent 9736722ad7
commit 525782f33f
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/msmpeg4.c
+++ b/libavcodec/msmpeg4.c
@ -664,7 +664,7 @@ int msmpeg4_decode_mb(MpegEncContext *s,
    /* special slice handling */
    if (s->mb_x == 0) {
-        if ((s->mb_y % s->slice_height) == 0) {
+        if (s->slice_height && (s->mb_y % s->slice_height) == 0) {
            int wrap;
            /* reset DC pred (set previous line to 1024) */
            wrap = 2 * s->mb_width + 2;