ref: f10d7eeda23bfccdb49a7fefc471132ae3eacca1
parent: 23bed46ddd6f426c832c7ec67a207b51cc756431
author: Yunqing Wang <yunqingwang@google.com>
date: Tue Sep 9 06:18:55 EDT 2014
Remove the use of use_lastframe_partitioning at speed 4 The use of use_lastframe_partitioning is totally removed in good- quality encoding. Its usage in real-time encoding needs to be evaluated to see if it can be removed too. The Borg tests at speed 4 showed: stdhd set: 0.220% psnr gain, 0.166% ssim gain; derf set: 0.329% psnr gain, 0.476% ssim gain. Speed test on selected clips showed 1.54% speedup.(Worst case: pedestrian_area_1080p25.y4m, speed loss: 1.5%) Change-Id: I1c844d329b0b5678558439b887297c1be7ddab00