shithub: libvpx

Download patch

ref: fcbff9ee04f5b67ce79fd329333c8b1970d9318d
parent: e6de9c2e5ddfe36324fbbb4f57971245066a32cf
author: Jingning Han <jingning@google.com>
date: Thu Aug 2 05:07:33 EDT 2012

Replacing the 8x8 DCT with 8x8 ADST/DCT for I8x8

Fixed the code review comments.

Under the htrans8x8 experiment the 8X8 DCT in the
I8X8 mode is replaced with a combination of 8X8 ADST and
DCT.

Overall coding gains with the htrans8x8 experiment are:
derf:   0.486
std-hd: 1.040
hd:     1.063
yt:     0.506

Note that part of the gain comes from bigger transforms
(8x8 instead of 4x4) and part comes from replacing the DCT
wth the ADST.

Change-Id: I92ca6bbfce11b4165d612b81d9adfad4d010c775