ffmpeg | branch: release/2.8 | Michael Niedermayer <mich...@niedermayer.cc> | 
Sun Jan 10 15:52:09 2016 +0100| [34e06ce309c9621b35be6d5100caab05525c76b7] | 
committer: Michael Niedermayer

avcodec/mjpegdec: Fix negative shift

Fixes: mjpeg_left_shift.avi

Found-by: Piotr Bandurski <ami_st...@o2.pl>
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
(cherry picked from commit d86d7b2486cd5c31db8e820d8a89554abf19567e)

Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=34e06ce309c9621b35be6d5100caab05525c76b7
---

 libavcodec/mjpegdec.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index 6d674b6..ba77994 100644
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@@ -999,7 +999,7 @@ static int ljpeg_decode_rgb_scan(MJpegDecodeContext *s, int 
nb_components, int p
                     return -1;
 
                 left[i] = buffer[mb_x][i] =
-                    mask & (pred + (dc << point_transform));
+                    mask & (pred + (dc * (1 << point_transform)));
             }
 
             if (s->restart_interval && !--s->restart_count) {

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