g723.1: replace loop of normalize_bits( by av_log2()

idea by vitor Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-09-29 21:39:08 +02:00 · 2011-09-29 21:39:08 +02:00 · 431f8af824
commit 431f8af824
parent 6e505547f1
1 changed files with 2 additions and 2 deletions
--- a/libavcodec/g723_1.c
+++ b/libavcodec/g723_1.c
@ -216,8 +216,8 @@ static int normalize_bits(int num, int width)
            return bits;
        if (num < 0)
            num = ~num;
-        for (i = 0; num < limit; i++)
-            num <<= 1;
+        i= bits - av_log2(num) - 1;
+        i= FFMAX(i, 0);
    }
    return i;
 }