VC1: simplify a calculation in a loop.

14 years ago · 0b16cdc3fa
parent 1da6ea3954
commit 0b16cdc3fa
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/vc1dec.c
+++ b/libavcodec/vc1dec.c
@ -199,7 +199,7 @@ static void vc1_put_block(VC1Context *v, DCTELEM block[6][64])
        for(k = 0; k < 6; k++)
            for(j = 0; j < 8; j++)
                for(i = 0; i < 8; i++)
-                    block[k][i + j*8] = ((block[k][i + j*8] - 128) << 1) + 128;
+                    block[k][i + j*8] = (block[k][i + j*8] - 64) << 1;

    }
    ys = v->s.current_picture.linesize[0];