1. 24 Jan, 2014 1 commit
  2. 17 Dec, 2013 1 commit
  3. 01 Nov, 2012 2 commits
  4. 31 Oct, 2012 3 commits
  5. 30 Oct, 2012 1 commit
    • Paul Wilkins's avatar
      Remove old experiment. · e05e6e10
      Paul Wilkins authored
      Delete code relating to featureupdates experiment.
      
      Change-Id: If218762c658bb8cbb3007cf2069123b3e05adcbc
      e05e6e10
  6. 29 Oct, 2012 1 commit
  7. 26 Oct, 2012 1 commit
    • Paul Wilkins's avatar
      Explicit MV reference experiment. · ba30e774
      Paul Wilkins authored
      Coding and costing of mv reference signal.
      
      Issues in updating MV ref with COMPANDED_MVREF_THRESH
      to be resolved. Ideally the MV precision should be defined based
      on absolute MV magnitude not as now the MV ref magnitude.
      
      Update to mv counts moved into bitstream.c because otherwise
      if the motion reference is changed at the last minute the encoder
      and decoder get out of step in terms of the counts used to update
      entropy probs.
      
      Code working on a few test clips but no results yet re benefit vs
      signaling cost and no tuning of red loop to test lower cost alternatives
      based on the available reference values.
      
      Patch 3. Added check to make sure we don't pick a reference
      that would give rise to an uncodeable / out of range residual.
      
      Patch 6-7: Attempt to rebase. OK to submit but best to leave flag off for now.
      
      Patch 9. Remove print no longer needed.
      
      Change-Id: I1938c2ffe41afe6d3cf6ccc0cb2c5d404809a712
      ba30e774
  8. 23 Oct, 2012 1 commit
    • Deb Mukherjee's avatar
      Merging in the Switchable interp experiment · 53731197
      Deb Mukherjee authored
      There is a macro DEFAULT_INTERP_FILTER defined in encoder/onyx_if.c that
      is set as EIGHTTAP for now - so SWITCHABLE is not really used. Ideally,
      this should be SWITCHABLE but that would make the encoder quite a bit slower.
      We will change the default filter to SWITCHABLE once we find a faster way to
      search for switchable filters.
      
      Change-Id: Iee91832cdc07e6e14108d9b543130fdd12fc9874
      53731197
  9. 22 Oct, 2012 3 commits
  10. 21 Oct, 2012 1 commit
  11. 19 Oct, 2012 2 commits
    • John Koleszar's avatar
      Remove bc, bc2 from pbi,cpi,xd · e9fd1eac
      John Koleszar authored
      Pass the bool coder to be used explicitly. This avoids cases where two
      different bool coders can be addressed from the same function. Also be
      more consistent with bool coder variable naming, start to standardize
      on 'bc'.
      
      Change-Id: I1c95e2fdbe24ebe8c0f84924daa1728e3b054a31
      e9fd1eac
    • Deb Mukherjee's avatar
      Some cleanups and fixes. · f3208f36
      Deb Mukherjee authored
      Separates the logic on transform type selection previously spread out
      over a number of files into a separate function. Currently the tx_type
      field in b_mode_info is not used, but still left in there to eventually
      use for signaling the transform type in the bitstream.
      
      Also, now for tx_type = DCT_DCT, the regular integer DCT is used, as
      opposed to the floating point DCT used in conjuction with hybrid
      transform.
      
      Results change somewhat due to the transform change, but are within
      reasonable limits. The hd/std-hd sets are slightly up, while derf/yt
      are slightly down.
      
      Change-Id: I5776840c2239ca2da31ca6cfd7fd1148dc5f9e0f
      f3208f36
  12. 15 Oct, 2012 3 commits
    • Ronald S. Bultje's avatar
      Remove test from B_MODE_INFO. · 23a64c89
      Ronald S. Bultje authored
      It is essentially a duplicate of mode for RD-only purposes. Removing it
      saves us 4 bytes per B_MODE_INFO, or ~0.5MB for a 1080p video encode.
      
      Change-Id: I0a54db5f51658b3946d7efb1ca6e8cfbda0cdf88
      23a64c89
    • Ronald S. Bultje's avatar
      Remove mode_rdopt from MB_MODE_INFO. · 66180f22
      Ronald S. Bultje authored
      The variable is essentially a duplicate of mode for RD-only purposes.
      Removing it gives identical results, and saves 4 bytes per macroblock
      (i.e. 32.5kB for a 1080p HD video encode).
      
      Change-Id: I22d5058fdb80ab0b69862caee825e9d86bb148b3
      66180f22
    • Ronald S. Bultje's avatar
      Add and consistently use PLANE_TYPE. · 41e3a9ef
      Ronald S. Bultje authored
      Change the macros PLANE_TYPE_{Y_NO_DC,Y2,UV,Y_WITH_DC} to a typed enum,
      and use this typed enum consistently across all places where relevant.
      In places where the type is implied (e.g. in functions that only handle
      second order planes or chroma planes), remove it as a function argument
      and instead hardcode the proper enum in the code directly.
      
      Change-Id: I93652b4a36aa43163d49c732b0bf5c4442738c47
      41e3a9ef
  13. 11 Oct, 2012 1 commit
  14. 21 Sep, 2012 1 commit
    • Deb Mukherjee's avatar
      Separating 8x8DCT use from hybridtransform8x8 · 70e21afb
      Deb Mukherjee authored
      With this change, even if hybridtransform8x8 experiment is off,
      8x8 dct is used for the I8x8 mode. However note that the gains
      observed with the hybridtransform8x8 experiment will now be less,
      since part of the gain is now merged in.
      
      Change-Id: I9afb3880906fd0a1368a374041fc08efcf060c54
      70e21afb
  15. 20 Sep, 2012 1 commit
  16. 17 Sep, 2012 1 commit
  17. 12 Sep, 2012 1 commit
  18. 11 Sep, 2012 1 commit
  19. 10 Sep, 2012 1 commit
    • Deb Mukherjee's avatar
      Hybrid transform cleanups · c5af82b7
      Deb Mukherjee authored
      Some cleanups that will make it easier to maintain the code
      and incorporate upcoming changes on  entropy coding for the
      hybrid transforms.
      
      Change-Id: I44bdba368f7b8bf203161d7a6d3b1fc2c9e21a8f
      c5af82b7
  20. 07 Sep, 2012 2 commits
    • Paul Wilkins's avatar
      Partial merge of NEWBESTREFMV and NEW_MVREF. · 778ec421
      Paul Wilkins authored
      This commit merges those parts of the CONFIG_NEW_MVREF
      that specifically relate to choosing a better set of candidate
      MV references into the NEWBESTREFMV experiment.
      
      CONFIG_NEW_MVREF will then be used for changes relating
      to the explicit coding of a cost optimized MV reference in the
      bitstream as part of MV coding.
      
      Change-Id: Ied982c0ad72093eab29e38b8cd74d5c3d7458b10
      778ec421
    • Paul Wilkins's avatar
      MV reference changes · 38e1c791
      Paul Wilkins authored
      Extend experiment to use both vectors from MBs
      coded using compound prediction as candidates.
      
      In final sort only consider best 4 candidates
      for now but make sure 0,0 is always one of them.
      
      Other minor changes to new MV reference code.
      Pass in Mv list to vp8_find_best_ref_mvs().
      
      Change-Id: Ib96220c33c6b80bd1d5e0fbe8b68121be7997095
      38e1c791
  21. 30 Aug, 2012 1 commit
    • Jingning Han's avatar
      hybrid transform of 16x16 dimension · de6dfa6b
      Jingning Han authored
      Enable ADST/DCT of dimension 16x16 for I16X16 modes. This change provides
      benefits mostly for hd sequences.
      
      Set up the framework for selectable transform dimension.
      
      Also allowing quantization parameter threshold to control the use
      of hybrid transform (This is currently disabled by setting threshold
      always above the quantization parameter. Adaptive thresholding can
      be built upon this, which will further improve the coding performance.)
      
      The coding performance gains (with respect to the codec that has all
      other configuration settings turned on) are
      
      derf:   0.013
      yt:     0.086
      hd:     0.198
      std-hd: 0.501
      
      Change-Id: Ibb4263a61fc74e0b3c345f54d73e8c73552bf926
      de6dfa6b
  22. 28 Aug, 2012 1 commit
  23. 24 Aug, 2012 1 commit
    • Paul Wilkins's avatar
      New Motion Reference Search · 2d60bee1
      Paul Wilkins authored
      Alternative strategy for finding a list of candidate motion
      vectors to use as reference values in mv coding and as
      nearest and near.
      
      Sort by sad in vp8_find_best_ref_mvs() rather than just
      pick the best. Allow 0,0 as a best ref option but not a
      nearest or near unless there are no alternatives.
      
      Encode/Decode verified on at least some clips.
      
      Some commented out experimental and stats code still in place.
      
      Gain over existing code averages about 1% on derf (alll metrics)
      with improvement on all clips. Other test results pending.
      
      The entropy coding of the mode (nearest/near etc) still
      depends upon and requires the old "findnear" code so
      this needs looking at and may provide room for further gains.
      
      Change-Id: I871d7cba1d1c379c4bad9bcccce1fb19c46b8247
      2d60bee1
  24. 21 Aug, 2012 1 commit
  25. 20 Aug, 2012 1 commit
    • Ronald S. Bultje's avatar
      Superblock coding. · 5d4cffb3
      Ronald S. Bultje authored
      This commit adds a pick_sb_mode() function which selects the best 32x32
      superblock coding mode. Then it selects the best per-MB modes, compares
      the two and encodes that in the bitstream.
      
      The bitstream coding is rather simplistic right now. At the SB level,
      we code a bit to indicate whether this block uses SB-coding (32x32
      prediction) or MB-coding (anything else), and then we follow with the
      actual modes. This could and should be modified in the future, but is
      omitted from this commit because it will likely involve reorganizing
      much more code rather than just adding SB coding, so it's better to let
      that be judged on its own merits.
      
      Gains on derf: about even, YT/HD: +0.75%, STD/HD: +1.5%.
      
      Change-Id: Iae313a7cbd8f75b3c66d04a68b991cb096eaaba6
      5d4cffb3
  26. 15 Aug, 2012 1 commit
    • Paul Wilkins's avatar
      Code clean up. · 77dc5c65
      Paul Wilkins authored
      Further cases of inconsistent naming convention.
      
      Change-Id: Id3411ecec6f01a4c889268a00f0c9fd5a92ea143
      77dc5c65
  27. 14 Aug, 2012 1 commit
  28. 10 Aug, 2012 1 commit
  29. 07 Aug, 2012 1 commit
    • Yaowu Xu's avatar
      a new way of determining reference motion vector · 8b2f57d0
      Yaowu Xu authored
      Using surrounding reconstructed pixels from left and above to select
      best matching mv to use as reference motion vector for mv encoding.
      
      Test results:
             AVGPSNR  GLBPSNR VPXSSIM
      Derf:  1.107%   1.062%  0.992%
      Std-hd:1.209%   1.176%  1.029%
      
      Change-Id: I8f10e09ee6538c05df2fb9f069abcaf1edb3fca6
      8b2f57d0
  30. 03 Aug, 2012 2 commits
    • Deb Mukherjee's avatar
      Merging in high_precision_mv experiment · 2af5473a
      Deb Mukherjee authored
      Merged in the high_precision_mv experiment to make it easier
      to work on new mv encoding strategies. Also removed
      coef_update_probs3().
      
      Change-Id: I82d3b0bb642419fe05dba82528bc9ba010e90924
      2af5473a
    • Jingning Han's avatar
      Replacing the 8x8 DCT with 8x8 ADST/DCT for I8x8 · fcbff9ee
      Jingning Han authored
      Fixed the code review comments.
      
      Under the htrans8x8 experiment the 8X8 DCT in the
      I8X8 mode is replaced with a combination of 8X8 ADST and
      DCT.
      
      Overall coding gains with the htrans8x8 experiment are:
      derf:   0.486
      std-hd: 1.040
      hd:     1.063
      yt:     0.506
      
      Note that part of the gain comes from bigger transforms
      (8x8 instead of 4x4) and part comes from replacing the DCT
      wth the ADST.
      
      Change-Id: I92ca6bbfce11b4165d612b81d9adfad4d010c775
      fcbff9ee