ref: 54ad09586c0deb26e7d305623dff78e200fdadef
parent: 5de6114e8fc708b8230f75745e0c58aed7ac05ff
author: Jingning Han <jingning@google.com>
date: Tue Jul 22 12:32:20 EDT 2014
Enable chessboard inter prediction filter type search This commit enables a chessboard pattern prediction filter type search scheme for rate-distortion optimization speed-up. For the inferred motion vector modes, the encoder can re-use its above/left neighbor blocks' prediction filter type and skip a full test on all possible filter types. Such operation is turned on/off alternatively in a chessboard manner. It is turned on in speed 3. For test clip pedestrian 1080p, the runtime is reduced from 231500 ms -> 221700 ms. The compression performance is changed: derf: -0.147% yt: -0.134% hd: -0.079% stdhd: -0.220% Change-Id: I1912f278e7576c2dc632688e3ad7a257410c605a