[FFmpeg-cvslog] ac3enc: remove right shifting from lshift_tab() and make lshift unsigned.
Justin Ruggles
git
Fri Feb 11 03:52:14 CET 2011
ffmpeg | branch: master | Justin Ruggles <justin.ruggles at gmail.com> | Thu Feb 10 21:15:01 2011 +0000| [95234e051bbde20bb580fd8e7b1c8dc54773d332] | committer: Michael Niedermayer
ac3enc: remove right shifting from lshift_tab() and make lshift unsigned.
Signed-off-by: Mans Rullgard <mans at mansr.com>
(cherry picked from commit d4582889eefeee4dd23face9e74b2829dbaaeae5)
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=95234e051bbde20bb580fd8e7b1c8dc54773d332
---
libavcodec/ac3enc_fixed.c | 8 ++------
1 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/libavcodec/ac3enc_fixed.c b/libavcodec/ac3enc_fixed.c
index 90e148b..ff400b8 100644
--- a/libavcodec/ac3enc_fixed.c
+++ b/libavcodec/ac3enc_fixed.c
@@ -286,19 +286,15 @@ static int log2_tab(int16_t *tab, int n)
* Left-shift each value in an array by a specified amount.
* @param tab input array
* @param n number of values in the array
- * @param lshift left shift amount. a negative value means right shift.
+ * @param lshift left shift amount
*/
-static void lshift_tab(int16_t *tab, int n, int lshift)
+static void lshift_tab(int16_t *tab, int n, unsigned int lshift)
{
int i;
if (lshift > 0) {
for (i = 0; i < n; i++)
tab[i] <<= lshift;
- } else if (lshift < 0) {
- lshift = -lshift;
- for (i = 0; i < n; i++)
- tab[i] >>= lshift;
}
}
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