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
16 years ago · a5b807a6c1
parent 1aea5d35e5
commit a5b807a6c1
1 changed files with 2 additions and 2 deletions
--- 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] ) )