1. 13 Feb, 2017 3 commits
  2. 10 Feb, 2017 2 commits
    • Steinar Midtskogen's avatar
      Retune the CLPF kernel · 4f0b3ed8
      Steinar Midtskogen authored
      CLPF performance had degraded by about 0.5% over the past six months,
      which isn't totally surprising since the codec is a moving target.
      About half of that degradation comes from the improved 7 bit filter
      coefficients.  Therefore, CLPF needs to be retuned for the current
      codec.
      
      This patch makes two (normative) changes to the CLPF kernel:
      
      * The clipping function was changed from clamp(x, -s, s) to
            sign(x) * max(0, abs(x) - max(0, abs(x) - s +
                   (abs(x) >> (bitdepth - 3 - log2(s)))))
        This adds a rampdown to 0 at -32 and 32 (for 8 bit, -128 & 128
        for 10 bit, etc), so large differences are ignored.
      
      * 8 taps instead of 6 taps:
                     1
          4          3
        13 31  ->  13 31
          4          3
                     1
      
      AWCY results: low delay  high delay
      PSNR:           -0.40%     -0.47%
      PSNR HVS:        0.00%     -0.11%
      SSIM:           -0.31%     -0.39%
      CIEDE 2000:     -0.22%     -0.31%
      APSNR:          -0.40%     -0.48%
      MS SSIM:         0.01%     -0.12%
      
      About 3/4 of the gains come from the new clipping function.
      
      Change-Id: Idad9dc4004e71a9c7ec81ba62ebd12fb76fb044a
      4f0b3ed8
    • Angie Chiang's avatar
      Turn on adapt_scan by default · 76ebf7ce
      Angie Chiang authored
      Change-Id: Ibf160e83e7cb1c7dce8b40e7cbead48416440974
      76ebf7ce
  3. 08 Feb, 2017 1 commit
  4. 07 Feb, 2017 2 commits
  5. 04 Feb, 2017 1 commit
  6. 03 Feb, 2017 4 commits
  7. 02 Feb, 2017 3 commits
  8. 01 Feb, 2017 1 commit
    • Tom Finegan's avatar
      Fix tests on macosx. · 29ba6756
      Tom Finegan authored
      - Wrap functions hidden by CONFIG_MOTION_VAR properly in test code.
      - Add some missing ampersands.
      
      Change-Id: Ie7c4e1f14cbacec1c157c7ce110b01350b2ed78e
      29ba6756
  9. 27 Jan, 2017 2 commits
  10. 26 Jan, 2017 2 commits
  11. 25 Jan, 2017 1 commit
  12. 24 Jan, 2017 1 commit
  13. 23 Jan, 2017 1 commit
    • David Barker's avatar
      Warp filter improvements · 13797462
      David Barker authored
      * The restriction on the parameter 'delta' was too strict, so we
        loosen it (delta only ever gets multiplied by -4, ... , 4,
        whereas beta gets multiplied by -7, ..., 7)
      * Correct a comment about the border clamping
      * Fix an issue with the test case
      
      Change-Id: I30e55203455ba6e419b5a8b646151a6d1fd5cc3b
      13797462
  14. 21 Jan, 2017 1 commit
    • hui su's avatar
      Update md5 for 308a6397 · 6870051a
      hui su authored and James Zern's avatar James Zern committed
      This is due to encoder speed optimization. Bitstream specs and
      decoder behaviors have not been changed.
      
      Change-Id: I4d601d6013f769e69dcec15f2a376e43cc76b197
      6870051a
  15. 20 Jan, 2017 1 commit
  16. 19 Jan, 2017 3 commits
  17. 18 Jan, 2017 1 commit
  18. 17 Jan, 2017 1 commit
  19. 14 Jan, 2017 3 commits
    • Angie Chiang's avatar
      Refactor av1_update_neighbors · 0cfaeeaf
      Angie Chiang authored
      Beside above and left positions, additional above-left,
      above-right, and bottom-left positions are added as
      neighbor candidates.
      
      In av1_update_neighbors, two available positions will be picked as
      context neighbors.
      
      The picking priority is
      above -> left -> above-left -> above->right -> bottom->left
      
      Change-Id: I82eaf0b23d0189caaea008ecc86776492886a05b
      0cfaeeaf
    • Angie Chiang's avatar
      Use default scan order as a tie breaker · fe2a959e
      Angie Chiang authored
      Change-Id: I85f059b6e2c48bcdf2edd3b7bf896fdccbaaa703
      fe2a959e
    • Yi Luo's avatar
      Fix 4x4 hybrid transform accuracy check tests · 8f315b19
      Yi Luo authored
      - Adjust the accuracy value and fix,
        C/Trans4x4HT.AccuracyCheck/5,6,7 as CONFIG_AOM_HIGHBITDEPTH = 1.
      
      Change-Id: I2f8d97b2e2c1ee45bfae613657ca01b5666d76ee
      8f315b19
  20. 13 Jan, 2017 3 commits
  21. 12 Jan, 2017 1 commit
  22. 11 Jan, 2017 2 commits