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| author | Alex Converse <alex.converse@gmail.com> | 2010-06-20 22:03:00 +0000 |
|---|---|---|
| committer | Alex Converse <alex.converse@gmail.com> | 2010-06-20 22:03:00 +0000 |
| commit | c6b0947171ef34f0334441b663795658bda1afc7 (patch) | |
| tree | 6acb789b9ddbeae6378b05654da49a9c2402410f | |
| parent | 3fa1a93265c77abb23732a8a93a4a98d40f6c792 (diff) | |
| download | ffmpeg-c6b0947171ef34f0334441b663795658bda1afc7.tar.gz | |
psdec: Replace a division with a shift.
Originally committed as revision 23667 to svn://svn.ffmpeg.org/ffmpeg/trunk
| -rw-r--r-- | libavcodec/ps.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/ps.c b/libavcodec/ps.c index 7b86dd7767..acec35df73 100644 --- a/libavcodec/ps.c +++ b/libavcodec/ps.c @@ -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++) { |