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-rw-r--r--libavcodec/mpeg12.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c
index 639ea365d6..d3ff54a7ab 100644
--- a/libavcodec/mpeg12.c
+++ b/libavcodec/mpeg12.c
@@ -2250,8 +2250,8 @@ static int mpeg_decode_slice(Mpeg1Context *s1, int mb_y,
s->resync_mb_x=
s->resync_mb_y= -1;
- if (mb_y >= s->mb_height){
- av_log(s->avctx, AV_LOG_ERROR, "slice below image (%d >= %d)\n", s->mb_y, s->mb_height);
+ if (mb_y<<field_pic >= s->mb_height){
+ av_log(s->avctx, AV_LOG_ERROR, "slice below image (%d >= %d)\n", mb_y, s->mb_height);
return -1;
}