tree 454c238bd851f28f830cdbca0b0c8ea9d2e47e5d
parent 922db60359be0a68dfb18dd5ec36d615cfb15c76
author sdeng <sdeng@google.com> 1582932609 -0800
committer Sai Deng <sdeng@google.com> 1584637851 +0000

Use downsized frame in VMAF RDO update

The RDO multiplier calculation time is largely reduced with little VMAF
quality loss. Compare to old tune=vmaf_without_preprocessing, VMAF
BD-rate changes:
midres 0.24%, hdres -0.18%, lowres_10bd -0.19%, midres_10bd 0.16%

Compression speed (instruction count) of different modes
--------------------------------------------------------
MODE                 480P     1080P
PSNR (baseline)      1.0x      1.0x
VMAF (before)        2.2x     10.2x
VMAF (after)         1.5x      4.1x
VMAF_WO_PP (before)  1.9x      9.5x
VMAF_WO_PP (after)   1.2x      3.4x
VMAF_W_PP            1.2x      1.5x

Full test results
-----------------
Performance counter stats for './aomenc red_kayak_480p.y4m --limit=30
 -o output_new --tune=psnr --cpu-used=1':
   642,437,621,503      instructions:u
      84.889688323 seconds time elapsed
      84.588830000 seconds user
       0.291975000 seconds sys

Performance counter stats for './aomenc red_kayak_480p.y4m --limit=30
 -o output_new --tune=vmaf_with_preprocessing --cpu-used=1':
   775,025,691,607      instructions:u
     109.458205579 seconds time elapsed
     107.989239000 seconds user
       4.284554000 seconds sys

Performance counter stats for './aomenc red_kayak_480p.y4m --limit=30
 -o output_new --tune=vmaf --cpu-used=1':
Before:
 1,405,511,943,075      instructions:u
     129.392291668 seconds time elapsed
     254.063729000 seconds user
      49.802219000 seconds sys
After:
   964,828,402,519      instructions:u
     123.807091424 seconds time elapsed
     161.892974000 seconds user
      42.540103000 seconds sys

Performance counter stats for './aomenc red_kayak_480p.y4m --limit=30
 -o output_new --tune=vmaf_without_preprocessing --cpu-used=1':
Before:
 1,218,021,966,132      instructions:u
      83.938745902 seconds time elapsed
     206.545182000 seconds user
       5.033487000 seconds sys
After:
   762,965,561,826      instructions:u
      79.566220976 seconds time elapsed
     118.461060000 seconds user
       4.023039000 seconds sys
------------------
Performance counter stats for './aomenc basketballdrive_1080p50.y4m
 --limit=30 -o output_new --tune=psnr --cpu-used=1':
 1,582,885,665,086      instructions:u
     204.687949181 seconds time elapsed
     203.775777000 seconds user
       0.811887000 seconds sys

Performance counter stats for './aomenc basketballdrive_1080p50.y4m
 --limit=30 -o output_new --tune=vmaf_with_preprocessing
 --cpu-used=1':
 2,298,587,912,062      instructions:u
     361.306249556 seconds time elapsed
     326.457704000 seconds user
      41.029086000 seconds sys

Performance counter stats for './aomenc basketballdrive_1080p50.y4m
 --limit=30 -o output_new --tune=vmaf --cpu-used=1':
Before:
16,214,552,275,288      instructions:u
     696.679505444 seconds time elapsed
    3579.636014000 seconds user
    1746.357289000 seconds sys
After:
 6,543,459,539,854      instructions:u
     553.099946250 seconds time elapsed
    1257.052953000 seconds user
     250.151702000 seconds sys

Performance counter stats for './aomenc basketballdrive_1080p50.y4m
 --limit=30 -o output_new --tune=vmaf_without_preprocessing
 --cpu-used=1':
Before:
15,040,376,209,757      instructions:u
     398.965821306 seconds time elapsed
    3205.411780000 seconds user
    1157.351525000 seconds sys
After:
 5,311,331,047,231      instructions:u
     247.754365865 seconds time elapsed
     984.609408000 seconds user
      12.773107000 seconds sys

Change-Id: Id64d59c2ef0fc63e0549a648406615edd71e43bd