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| author | Yaowu Xu <yaowu@google.com> | 2012-05-09 09:31:14 -0700 |
|---|---|---|
| committer | Yaowu Xu <yaowu@google.com> | 2012-05-15 07:28:26 -0700 |
| commit | b22cc559b6f3d17a5b230f239066158328bbfb9a (patch) | |
| tree | 983efa09f345f11959a437d43965df8b965ae31f /vp8/encoder/firstpass.c | |
| parent | 3536ad5bb9a630e58bd6503423023b16b40b201e (diff) | |
| download | libvpx-b22cc559b6f3d17a5b230f239066158328bbfb9a.tar libvpx-b22cc559b6f3d17a5b230f239066158328bbfb9a.tar.gz libvpx-b22cc559b6f3d17a5b230f239066158328bbfb9a.tar.bz2 libvpx-b22cc559b6f3d17a5b230f239066158328bbfb9a.zip | |
Changed to use integer 8x8 dct
The commit added an integer version of 8x8 forward DCT, based on the
orginal forward DCT from VP6. The constants, roundings, and shifts
were adjusted to improve the accuracy. The latest patch has a very
similar accuracy in term of round trip error against the floating
point version.
It should be noted here that the purpose of the patch is to help
encoding speed and facilitate all other experiments. There will be
futher review in combination with inverse DCT before finalization.
configure with "--enable--int_8x8fdct" to use the integer version
Change-Id: I5a4f80507429f0e07cf02a13768ec81cbfddc5bc
Diffstat (limited to 'vp8/encoder/firstpass.c')
0 files changed, 0 insertions, 0 deletions