ref: 9824230fe3ee33fa2deac0745521e625b4c38be9
parent: 6fd0929fb53ca5dee83ff99f34d987a88eefa1ea
author: Jingning Han <jingning@google.com>
date: Mon Jun 25 08:26:09 EDT 2012
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