1. 15 Aug, 2014 1 commit
    • Pengchong Jin's avatar
      Add a speed feature to give the tighter search range · eca93642
      Pengchong Jin authored
      Add a speed feature to give the tighter partition search
      range. Before partition search, calculate the histogram
      of the partition sizes of the left, above and previous
      co-located blocks of the current block. If the variance of
      observed partition sizes is small enough, adjust the search
      range around the mean partition size, which will be tigher.
      
      The feature is currently turned on at speed 2. Experiments on
      sample youtube clips show on average the runtime is reduced
      by 3-7%.
      
      For hard stdhd clips:
      park_joy_1080p @ 15000kbps:       509251 ms -> 491953 ms (3.3%)
      pedestrian_area_1080p @ 2000kbps: 223941 ms -> 214226 ms (4.3%)
      
      The PSNR performance is changed:
      derf: -0.112%
      yt:   -0.099%
      hd:   -0.090%
      stdhd:-0.102%
      
      Change-Id: Ie205ec5325bf92ec5676c243e30ba9d0adca10f2
      eca93642
  2. 11 Aug, 2014 2 commits
  3. 10 Aug, 2014 1 commit
  4. 09 Aug, 2014 2 commits
  5. 08 Aug, 2014 15 commits
  6. 07 Aug, 2014 19 commits