commit fcbff9ee04f5b67ce79fd329333c8b1970d9318d
author Jingning Han <jingning@google.com> Thu Aug 02 09:07:33 2012 -0700
committer Jingning Han <jingning@google.com> Fri Aug 03 12:02:07 2012 -0700
tree 1e14daa8f99e3ea35df579e55a8b7ec75ad75ef3
parent e6de9c2e5ddfe36324fbbb4f57971245066a32cf

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