tree f4044dfad6bcba0a505f7e79b0ccfc561571cadf
parent b9b4933fde6fb4ec65e835261db59b5adfc7b596
author Yunqing Wang <yunqingwang@google.com> 1613970705 -0800
committer Yunqing Wang <yunqingwang@google.com> 1614106478 +0000

Conduct less complex second MV search

When cpi->sf.mv_sf.disable_second_mv = 1, use var to decide the better
MV instead of rd cost. Set it to 1 for < 720p encoding to achieve a good
speed/quality tradeoff.

Borg test results at speed 2:
         avg_psnr:  ovr_psnr:  ssim:  speedup:
midres2:  0.037      0.037     0.047   2.8%

STATS_CHANGED

Change-Id: If3f222ff9c7a56e6d90037bdd5d3358538614812