1. 15 Mar, 2017 2 commits
    • Thomas Davies's avatar
      NEW_TOKENSET: improve RDO. · 10525758
      Thomas Davies authored
      Modify av1_coef_cost to reflect that EOB values are sent
      with each non-zero coefficient, and modify chroma weight
      to preserve original chroma balance.
      
      AWCY, objective-1-fast, new_token+ec_adapt vs ec_multisymbol:
      
      PSNR YCbCr:     -0.43%      -0.52%      -0.58%
      PSNRHVS:        -0.81%
      SSIM:           -0.73%
      MSSSIM:         -0.93%
      CIEDE2000:      -0.36%
      
      This change:
      
      PSNR YCbCr:     -0.15%      0.83%      0.77%
      PSNRHVS:        -0.24%
      SSIM:           -0.23%
      MSSSIM:         -0.24%
      CIEDE2000:       0.24%
      
      Change-Id: I7f2dd9f3cd24bb64eb4131cba94dda466b9691b0
      10525758
    • Thomas Davies's avatar
      EC_ADAPT: Perform backwards updates directly on CDFs. · 028b57f5
      Thomas Davies authored
      The initial CDF for each frame is stored in
      the frame context. CDFs for actual coding are
      stored in the tile structures, and these are
      what get adapted. The initial CDF is replaced
      by an average CDF derived from these tile CDFs.
      This is carried forward to future frames when
      backward adaptation is on.
      
      CDFs are no longer set from the 8 bit probabilities
      in backwards adaptation.
      
      For now, 8 bit probabilities are maintained for
      use in the encoder and for symbols which do not
      have a CDF.
      
      Change-Id: I106b30510bfad1fa57d077f7702acc1864378a09
      028b57f5
  2. 14 Mar, 2017 8 commits
  3. 13 Mar, 2017 9 commits
  4. 11 Mar, 2017 8 commits
  5. 10 Mar, 2017 13 commits