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| author | Yaowu Xu <yaowu@google.com> | 2010-06-16 12:52:18 -0700 |
|---|---|---|
| committer | Yaowu Xu <yaowu@google.com> | 2010-06-24 13:17:58 -0700 |
| commit | d0dd01b8ce8bc5f477d70f1c127d795418c5efb5 (patch) | |
| tree | 335898f9122085c141c49d44182b52f580100bc9 /vp8/encoder/x86/variance_mmx.c | |
| parent | a5906668a32c46a0f033b3a503ac5a159b77fce3 (diff) | |
| download | libvpx-d0dd01b8ce8bc5f477d70f1c127d795418c5efb5.tar libvpx-d0dd01b8ce8bc5f477d70f1c127d795418c5efb5.tar.gz libvpx-d0dd01b8ce8bc5f477d70f1c127d795418c5efb5.tar.bz2 libvpx-d0dd01b8ce8bc5f477d70f1c127d795418c5efb5.zip | |
Redo the forward 4x4 dct
The new fdct lowers the round trip sum squared error for a
4x4 block ~0.12. or ~0.008/pixel. For reference, the old
matrix multiply version has average round trip error 1.46
for a 4x4 block.
Thanks to "derf" for his suggestions and references.
Change-Id: I5559d1e81d333b319404ab16b336b739f87afc79
Diffstat (limited to 'vp8/encoder/x86/variance_mmx.c')
0 files changed, 0 insertions, 0 deletions