tree 7b09ab0e39e7b6786293999196eb38b4dc7bba59
parent ba67fe8513cb82d709a73f0ae38b7a4c8a4e8b1e
author Ravi Chaudhary <ravi.chaudhary@ittiam.com> 1600873410 +0530
committer Yunqing Wang <yunqingwang@google.com> 1601409801 +0000

Extend selective_ref_frame sf to prune LAST2 ref frame

LAST2 reference frame is pruned based on the temporal
distance and first-pass stats.

         Instruction Count       BD-Rate Loss(%)
cpu-used   Reduction(%)    avg.psnr  ovr.psnr  ssim
   6          2.739        0.1308    0.1272    0.0697

STATS_CHANGED for speed 6

Change-Id: I53a943a876da1e0c0bf76d26793a5acd2621e9c7