shithub: libvpx

Download patch

ref: 5a5df19de30fec82bd64a846e4d0341b7d03594a
parent: 4d0ec7aacd2227b1b98d1f5100bde64c7797b962
author: Ronald S. Bultje <rbultje@google.com>
date: Wed Dec 12 05:25:58 EST 2012

New default coefficient/band probabilities.

Gives 0.5-0.6% improvement on derf and stdhd, and 1.1% on hd. The
old tables basically derive from times that we had only 4x4 or
only 4x4 and 8x8 DCTs.

Note that some values are filled with 128, because e.g. ADST ever
only occurs as Y-with-DC, as does 32x32; 16x16 ever only occurs
as Y-with-DC or as UV (as complement of 32x32 Y); and 8x8 Y2 ever
only has 4 coefficients max. If preferred, I can add values of
other tables in their place (e.g. use 4x4 2nd order high-frequency
probabilities for 8x8 2nd order), so that they make at least some
sense if we ever implement a larger 2nd order transform for the
8x8 DCT (etc.), please let me know

Change-Id: I917db356f2aff8865f528eb873c56ef43aa5ce22