tree 32242e0dae0cb4af565cfefbadafd6d75957da7c
parent 86e672d599d9ddf98de332a073da42d255bbd126
author Yunqing Wang <yunqingwang@google.com> 1570652592 -0700
committer Yunqing Wang <yunqingwang@google.com> 1570725138 +0000

Allocate proper buffer border

For alt_ref_buffer, use the same border as lookahead buffers, and
allocate proper buffer border.

Speed 1 Borg test result:
         avg_psnr: ovr_psnr:  ssim:
lowres:   0.000    0.000      0.000
midres:   0.000    0.000      0.000
hdres:   -0.009   -0.008      0.003

STATS_CHANGED

Change-Id: Id53debe2e380f06541023aa20af0c550dfc08520