From a5b807a6c181090b65b06ddc714f74cc1605c5bd Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Fri, 19 Dec 2008 02:28:51 +0000
Subject: [PATCH] Replace /2 by >>1 in decode_cabac_mb_dqp() 3 cpu cycles speed
 up on pentium dual.

Originally committed as revision 16233 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/h264.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 54c66a177a..4879e67b1d 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -4966,9 +4966,9 @@ static int decode_cabac_mb_dqp( H264Context *h) {
     }
 
     if( val&0x01 )
-        return (val + 1)/2;
+        return   (val + 1)>>1 ;
     else
-        return -(val + 1)/2;
+        return -((val + 1)>>1);
 }
 static int decode_cabac_p_mb_sub_type( H264Context *h ) {
     if( get_cabac( &h->cabac, &h->cabac_state[21] ) )
-- 
GitLab