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authorMichael Niedermayer <michael@niedermayer.cc>2016-01-10 17:43:56 +0100
committerMichael Niedermayer <michael@niedermayer.cc>2016-01-10 17:44:33 +0100
commit93ac72a98dff592ffc174cfb36a8975dfbf145ae (patch)
treea41407ae5f0a76f89f40c145f80702d899d35583 /libavcodec/dvdec.c
parent030c7f0309ec0e3cadb990408b4bb9b7fd739425 (diff)
downloadffmpeg-streaming-93ac72a98dff592ffc174cfb36a8975dfbf145ae.zip
ffmpeg-streaming-93ac72a98dff592ffc174cfb36a8975dfbf145ae.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>
Diffstat (limited to 'libavcodec/dvdec.c')
-rw-r--r--libavcodec/dvdec.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/dvdec.c b/libavcodec/dvdec.c
index b75bcb9..0b4c1bc 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;
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