tree 9992189912b133a86542bfa8b0ab12c973d05068
parent e739a7f87fa2c9557d63f1656798e6bfd6fa127d
author Mufaddal Chakera <mufaddal.chakera@ittiam.com> 1599198836 +0530
committer Yunqing Wang <yunqingwang@google.com> 1600280967 +0000

Correct scaling of satd in tx search for hbd encoding

This CL scales the satd as per bit-depth in skip_trellis_opt_based_on_satd().
10-bit encoding shows quality improvement with some speed loss.

          Instruction Count      BD-Rate Impact(%)
cpu-used    Reduction(%)     avg.psnr  ovr.psnr   ssim
   4          -1.345         -0.2467   -0.2549  -0.1986
   5          -0.854         -0.2377   -0.2477  -0.1982
   6          -0.534         -0.1708   -0.1741  -0.1438

STATS_CHANGED for hbd encoding.

Change-Id: I76ce5f95a634e3ceea861f82af334eda08f34f7d