1. 13 Feb, 2014 1 commit
    • Paul Wilkins's avatar
      Remove some cases for turning off arf. · c30a9cd9
      Paul Wilkins authored
      Flipping arf on and off too often is hurting some clips.
      This change makes no difference for 50-75% of our test
      clips but helps some by a big margin. (eg. std-hd crew
      by 6% and one of the YT and YT-hd clips by 14%)
      Average improvements for 2 pass, speed 2 (psnr,ssim)
      are as follows:-
      derf  0.165%, 0.210%
      yt  1.210%, 1.464%
      yt-hd 1.189%, 1.471%
      std-hd 1.031%, 0.886%
      Change-Id: I121fe66cfb4a62d384b23b484a7d648789641969
  2. 11 Feb, 2014 1 commit
    • Paul Wilkins's avatar
      Modified Aq1 and Aq2 · f30b3231
      Paul Wilkins authored
      Aq 1 only updates segment map on kf and arf and
      only uses 3 segments. With these settings AQ1 is
      + for most clips in SSIM but negative in psnr.
      However, the penalty in PSNR is much less than
      Old version aq1 average results for std hd
      -20.899% psnr, -5.809% SSIM
      New version aq1 for std hd
      -3.57% psnr, +1.23% SSIM
      Aq2 Now uses only 2 segments and rd.
      This mode is still slightly negative for most clips on
      psnr and SSIM but seems to have a much bigger visual
      impact on several problem clips than aq mode 1.
      Old results for std hd:
      -2.578% psnr, -1.151% SSIM
      New results for std hd:
      -1.561% psnr, -0.85% SSIM
      Change-Id: I94f57f8a73121629ce598fb921aad761c1450e1c
  3. 06 Feb, 2014 17 commits
  4. 05 Feb, 2014 21 commits