tree 15f719e1b30f44eeda8166377d271719b93b765e
parent 6fd0929fb53ca5dee83ff99f34d987a88eefa1ea
author Jingning Han <jingning@google.com> 1340652369 -0700
committer Jingning Han <jingning@google.com> 1342728177 -0700

Adds hybrid transform

Adds ADST/DCT hybrid transform coding for Intra4x4 mode.
The ADST is applied to directions in which the boundary
pixels are used for prediction, while DCT applied to
directions without corresponding boundary prediction.

Adds enum TX_TYPE in b_mode_infor to indicate the transform
type used.

Make coding style consistent with google style.
Fixed the commented issues.

Experimental results in terms of bit-rate reduction:
derf:   0.731%
yt:     0.982%
std-hd: 0.459%
hd:     0.725%

Will be looking at 8x8 transforms next.

Change-Id: I46dbd7b80dbb3e8856e9c34fbc58cb3764a12fcf