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| author | Mans Rullgard <mans@mansr.com> | 2011-10-08 12:56:54 +0100 |
|---|---|---|
| committer | Reinhard Tartler <siretart@tauware.de> | 2012-03-18 17:50:35 +0100 |
| commit | 48f9a800722736c9fd1ed37562a8760417f8f221 (patch) | |
| tree | b68faf5dff18f084ea83ac7b059230a755ebe150 /libavcodec | |
| parent | 2c99aa48d7073a6ccdecc7ff1f88a781a5a62a86 (diff) | |
| download | ffmpeg-48f9a800722736c9fd1ed37562a8760417f8f221.tar.gz | |
mpeg12enc: use sign_extend() function
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 2f329db90e5d72ad383a0ba05fde3641a34ef73b)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/mpeg12enc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/mpeg12enc.c b/libavcodec/mpeg12enc.c index eb07ecfc5e..f77677a239 100644 --- a/libavcodec/mpeg12enc.c +++ b/libavcodec/mpeg12enc.c @@ -27,6 +27,7 @@ #include "avcodec.h" #include "dsputil.h" +#include "mathops.h" #include "mpegvideo.h" #include "mpeg12.h" @@ -681,8 +682,7 @@ static void mpeg1_encode_motion(MpegEncContext *s, int val, int f_or_b_code) int bit_size = f_or_b_code - 1; int range = 1 << bit_size; /* modulo encoding */ - int l= INT_BIT - 5 - bit_size; - val= (val<<l)>>l; + val = sign_extend(val, 5 + bit_size); if (val >= 0) { val--; |