tree 808803e1e780b3bb1bb8b8190ffb19bd7af74fcc
parent 81d6fbb8d2834ace49c5ad08b029f2a0062b7dc2
author Jingning Han <jingning@google.com> 1563224215 -0700
committer Jingning Han <jingning@google.com> 1563829492 +0000

Integrate the arf stack buffer control with tpl

Rework the reference frame mapping in the tpl model using the arf
stack based reference frame control scheme. The stack based reference
frame management system provides more flexibility in frame selection.
It allows the codec to support multiple long term reference frames.
The compression performance is improved:

speed 0 150 frames
          avg PSNR         ovr PSNR        SSIM
lowres    -0.55%           -0.60%         -0.51%
midres    -0.39%           -0.45%         -0.30%
ugc       -0.54%           -0.52%         -0.41%

speed 1 150 frames
          avg PSNR         ovr PSNR        SSIM
lowres    -0.50%           -0.55%         -0.43%
midres    -0.44%           -0.45%         -0.38%
ugc       -0.60%           -0.55%         -0.35%

STATS_CHANGED

Change-Id: Id6397a2417acbf4c1af027a4794df10e9dd74c25