tree 6cacd77a5544a35304e572c2ea46f7fa570c9aae
parent 42a400adb06dc865aeee093a36eb1fc10401ee1b
author Yunqing Wang <yunqingwang@google.com> 1624502422 -0700
committer Yunqing Wang <yunqingwang@google.com> 1624577151 +0000

Lower extend_frame_length in TPL

MAX_LAG_BUFFERS was increased from 35 to 48 recently. The value of
extend_frame_length was decided by MAX_TPL_EXTEND, which was equal
to (MAX_LAG_BUFFERS - MAX_GF_INTERVAL). A high extend_frame_length
didn't help much, but made encoder slower. This CL lowered this
value by using actual lag_in_frames in the calculation.
Borg test results:
         avg_psnr:  ovr_psnr:  ssim:  speed:
speed 1:
lowres2: -0.037     -0.001    0.319   0.594
midres2: -0.057     -0.054    0.202   0.951
speed 2:
lowres2: -0.077     -0.046    0.313   0.679
midres2: -0.086     -0.092    0.194   0.999
hdres2:   0.035      0.014    0.281   1.615

STATS_CHANGED

Change-Id: Idc2200e60e7ab2086f53b7239e0a27e60d10c7bf