tree bbe4c9a2031392bbbb2e0691e789964f4bd90a46
parent 876d70156206bc1b016f2d24d28fda5f3fde89b4
author Yunqing Wang <yunqingwang@google.com> 1671586754 -0800
committer Yunqing Wang <yunqingwang@google.com> 1673039834 +0000

Use neighbours' MVs in variance-based partitioning

Evaluated neighbours' MVs to find a better prediction in
RTC variance-based partitioning. Also, always evaluated
the zero MV.

Borg test result at speed 8:
          avg_psnr:  ovr_psnr:   ssim:  encoding_spdup:
rtc_derf:  -0.383     -0.332    -0.268   1.562
rtc:       -0.172     -0.155    -0.166   0.623
rtc_1080p:  0.084      0.081    -0.010   0.736

STATS_CHANGED for rtc speed 8

Change-Id: I6a70d87305d03fabbdd860bfeb1c745b3873c0cf