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| author | Christophe GISQUET <christophe.gisquet@gmail.com> | 2012-03-19 22:46:28 +0100 |
|---|---|---|
| committer | Ronald S. Bultje <rsbultje@gmail.com> | 2012-04-10 10:06:48 -0700 |
| commit | 272b252c0110225188c7d7f31167941210aac197 (patch) | |
| tree | 47bea5996c88057a418e8872a655bac8f261736e /libavcodec/vc1data.h | |
| parent | d3c59d5003a483f1a23e225fc71c19bd1116d11c (diff) | |
| download | ffmpeg-272b252c0110225188c7d7f31167941210aac197.tar.gz | |
rv40dsp: implement prescaled versions for biweight.
Quite often, the original weights are multiple of 512. By prescaling them
by 1/512 when they are computed (once per frame), no intermediate shifting
is needed, and no prescaling on each call either.
The x86 code already used that trick.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
Diffstat (limited to 'libavcodec/vc1data.h')
0 files changed, 0 insertions, 0 deletions