[FFmpeg-cvslog] g723.1: simplify normalize_bits()

[Mans Rullgard]

ffmpeg | branch: master | Mans Rullgard <mans at mansr.com> | Mon Aug 13 23:03:37 2012 +0100| [a4b8fc3a8a4ec8e704885d3097b6bfbdc7827b6e] | committer: Mans Rullgard

g723.1: simplify normalize_bits()

This function is always called with a non-negative argument, so
those special cases are not needed.  In the places the argument
might be zero, the return value for a zero argument does not matter
since it would then be used to scale an array full of zeros.

Signed-off-by: Mans Rullgard <mans at mansr.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a4b8fc3a8a4ec8e704885d3097b6bfbdc7827b6e
---

 libavcodec/g723_1.c |    7 -------
 1 file changed, 7 deletions(-)

diff --git a/libavcodec/g723_1.c b/libavcodec/g723_1.c
index 37b7ff5..fd03ed9 100644
--- a/libavcodec/g723_1.c
+++ b/libavcodec/g723_1.c
@@ -265,13 +265,6 @@ static int16_t square_root(int val)
  */
 static int normalize_bits(int num, int width)
 {
-    if (!num)
-        return 0;
-    if (num == -1)
-        return width;
-    if (num < 0)
-        num = ~num;
-
     return width - av_log2(num) - 1;
 }