X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fmjpegenc_common.c;h=3038ebde6e15710e4434cf64d1c593dfbb651758;hb=f66ac83c22d8c088832ce8df922b08a0caa11833;hp=31868c9bedac1517e28d4a78955a884dbdec0458;hpb=a024c3ce9a502849013a4aa2c0a6de0c9270261c;p=ffmpeg

diff --git a/libavcodec/mjpegenc_common.c b/libavcodec/mjpegenc_common.c
index 31868c9beda..3038ebde6e1 100644
--- a/libavcodec/mjpegenc_common.c
+++ b/libavcodec/mjpegenc_common.c
@@ -573,7 +573,7 @@ int ff_mjpeg_encode_stuffing(MpegEncContext *s)
 
     ff_mjpeg_escape_FF(pbc, s->esc_pos);
 
-    if((s->avctx->active_thread_type & FF_THREAD_SLICE) && mb_y < s->mb_height)
+    if((s->avctx->active_thread_type & FF_THREAD_SLICE) && mb_y < s->mb_height - 1)
         put_marker(pbc, RST0 + (mb_y&7));
     s->esc_pos = put_bits_count(pbc) >> 3;
 fail: