[FFmpeg-cvslog] r16233 - trunk/libavcodec/h264.c

[michael]

Author: michael
Date: Fri Dec 19 03:28:51 2008
New Revision: 16233

Log:
Replace /2 by >>1 in decode_cabac_mb_dqp()
3 cpu cycles speed up on pentium dual.


Modified:
   trunk/libavcodec/h264.c

Modified: trunk/libavcodec/h264.c
==============================================================================
--- trunk/libavcodec/h264.c	(original)
+++ trunk/libavcodec/h264.c	Fri Dec 19 03:28:51 2008
@@ -4966,9 +4966,9 @@ static int decode_cabac_mb_dqp( H264Cont
     }
 
     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] ) )