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psdec: Replace a division with a shift.

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Originally committed as revision 23667 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Alex Converse 2010-06-20 22:03:00 +00:00
parent 3fa1a93265
commit c6b0947171
1 changed files with 2 additions and 1 deletions
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3
libavcodec/ps.c
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@ -20,6 +20,7 @@
*/
#include <stdint.h>
#include "libavutil/common.h"
#include "libavutil/mathematics.h"
#include "avcodec.h"
#include "get_bits.h"
@ -191,7 +192,7 @@ int ff_ps_read_data(AVCodecContext *avctx, GetBitContext *gb_host, PSContext *ps
ps->border_position[e] = get_bits(gb, 5);
} else
for (e = 1; e <= ps->num_env; e++)
ps->border_position[e] = e * numQMFSlots / ps->num_env - 1;
ps->border_position[e] = (e * numQMFSlots >> ff_log2_tab[ps->num_env]) - 1;
if (ps->enable_iid) {
for (e = 0; e < ps->num_env; e++) {