ref: bacc67f4a808e488d24fda2e93cfd5fbe0b806a4
parent: 204809bfb3dbb1ace2068a2219f5dcbb79d610fd
author: jackychen <jackychen@google.com>
date: Fri May 20 09:45:46 EDT 2016
vp9: Skip some modes when variance is low for big blocks, for 1 pass real-time. Skip intra-mode and some inter-modes (newmv, nearmv, nearestmv) for golden frame if the variance got from choose_partitioning is very low. Only for 1 pass real-time CBR mode and bsize >= 32x32, it has ~2.5% speed up with less than 0.1% PSNR drop for rtc test set. Don't see visual regression. Change-Id: I70efbc95a1007231ae36f02c5b2fbf6cd35077ad