From: Michael Niedermayer <[email protected]>

CC: [email protected]
Bug-Id: CID 1194388
---
 libavcodec/mjpegdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index d9a73d8..4728840 100644
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@@ -964,7 +964,7 @@ static int 
mjpeg_decode_scan_progressive_ac(MJpegDecodeContext *s, int ss,
         init_get_bits(&mb_bitmask_gb, mb_bitmask, s->mb_width * s->mb_height);
 
     if (!Al) {
-        s->coefs_finished[c] |= (1LL << (se + 1)) - (1LL << ss);
+        s->coefs_finished[c] |= (2LL << se) - (1LL << ss);
         last_scan = !~s->coefs_finished[c];
     }
 
-- 
1.9.3 (Apple Git-50)

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