ref: c4826c59415f2fe8b8d9ab1a66f50f7e30d64f1d
parent: 5d8642354e4e3715a314fd5f6bf4a0d495b4503b
author: Jingning Han <jingning@google.com>
date: Thu Sep 12 06:06:47 EDT 2013
Adaptive motion search control This commit enables adaptive constraint on motion search range for smaller partitions, given the motion vectors of collocated larger partition as a candidate initial search point. It makes speed 0 runtime of bus at CIF and 2000 kbps goes from 167s down to 162s (3% speed-up), at 0.01dB performance gains. In the settings of speed 1, this makes the runtime goes from 33687 ms to 32142 ms (4.5% speed-up), at 0.03dB performance gains. Compression performance wise, it gains at speed 1: derf 0.118% yt 0.237% hd 0.203% stdhd 0.438% Change-Id: Ic8b34c67810d9504a9579bef2825d3fa54b69454