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| author | Michael Niedermayer <michael@niedermayer.cc> | 2016-01-10 17:43:56 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2016-01-15 12:30:40 +0100 |
| commit | b8382a1faeb24662eb9197d32b1bae434a803daa (patch) | |
| tree | 751f26ff8c3ab1c63719f9a2d62b2391afa0739e | |
| parent | 9cad20822370222dee2a73210b287c56d8f0f125 (diff) | |
| download | ffmpeg-b8382a1faeb24662eb9197d32b1bae434a803daa.tar.gz | |
avcodec/dvdec: Fix "left shift of negative value -254"
Fixes: dvdec_left_shift.avi
Found-by: Piotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 93ac72a98dff592ffc174cfb36a8975dfbf145ae)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/dvdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/dvdec.c b/libavcodec/dvdec.c index 679075e6a9..1a3983b501 100644 --- a/libavcodec/dvdec.c +++ b/libavcodec/dvdec.c @@ -347,7 +347,7 @@ retry: dct_mode * 22 * 64 + (quant + ff_dv_quant_offset[class1]) * 64]; } - dc = dc << 2; + dc = dc * 4; /* convert to unsigned because 128 is not added in the * standard IDCT */ dc += 1024; |