tree a008d3fd1cac274bba0dead5b234e95263a0458d
parent 0a52fcb8910c7b10a176e73f4ec1e59579e5204c
author Nithya V S <nithya.vs@ittiam.com> 1599201035 +0530
committer Yunqing Wang <yunqingwang@google.com> 1599842677 +0000

Correct rd cost computation using RDCOST_DBL in hbd encode

For hbd encoding, SSE is scaled as per bit-depth while computing rd cost using RDCOST_DBL.

Results on 10-bit encode show quality improvement.

          Instruction Count       BD-Rate Impact(%)
cpu-used    Reduction(%)     avg.psnr  ovr.psnr   ssim
   0         -0.114          -0.7501   -0.7521   -0.8904
   1         -0.182          -0.6677   -0.6641   -0.7598
   2          0.145          -0.5546   -0.5576   -0.6530
   3          0.294          -0.3103   -0.3010   -0.3582
   4          0.521          -0.3058   -0.3095   -0.3835

STATS_CHANGED for hbd encoding

Change-Id: I66c145c0dde998792e91010911b44a27ff316327