From c78295ad1b528be05cc66f42af1e935c9ca87072 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer
Date: Sun, 24 Jan 2010 18:17:01 +0000
Subject: Optimize level_code computation, 6cpu cycles speedup.

Originally committed as revision 21428 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/h264_cavlc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'libavcodec/h264_cavlc.c')

diff --git a/libavcodec/h264_cavlc.c b/libavcodec/h264_cavlc.c
index c248137248..9440ce03eb 100644
--- a/libavcodec/h264_cavlc.c
+++ b/libavcodec/h264_cavlc.c
@@ -441,7 +441,7 @@ static int decode_residual(H264Context *h, GetBitContext *gb, DCTELEM *block, in
             mask= -(level_code&1);
             level[trailing_ones]= (((2+level_code)>>1) ^ mask) - mask;
         }else{
-            if(trailing_ones < 3) level_code += (level_code>>31)|1;
+            level_code += ((level_code>>31)|1) & -(trailing_ones < 3);
 
             suffix_length = 1;
             if(level_code + 3U > 6U)
-- 
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