1. 07 Jul, 2017 1 commit
    • Nathan E. Egge's avatar
      Add VAR_TX_NO_TX_MODE experiment. · a33304f0
      Nathan E. Egge authored
      This experiment removes the tx_mode flag from the uncompressed frame
       header and instead always uses a constant value.
      
      objective-1-fast:
      
      master@2017-06-29T00:51:22.142Z -> no_tx_mode@2017-06-29T01:09:32.392Z
         PSNR | PSNR Cb | PSNR Cr | PSNR HVS |    SSIM | MS SSIM | CIEDE 2000
      -0.0103 |  0.0183 | -0.0076 |  -0.0103 | -0.0052 | -0.0208 |     0.0004
      
      Change-Id: I9d49c4d99ed102e52c86e339f20623063886f49d
      a33304f0
  2. 04 Jul, 2017 1 commit
  3. 30 Jun, 2017 3 commits
    • Zoe Liu's avatar
      Add a new coding tool of gf_groups · 5caf2c49
      Zoe Liu authored
      This coding tool is targeted at tuning the encoder decisions on
      altrefs, including the temporal filtering strength applied to the
      altrefs, the structure of the gf (Golden Frame) groups, etc.
      
      Change-Id: Ifd0ff1c35c23ecb005192b874a8d4e61a8ad6bd3
      5caf2c49
    • James Zern's avatar
      Add support for Visual Studio 2017 · ff5b2f43
      James Zern authored
      ported from libvpx:
      bcfd9c975 Add support for Visual Studio 2017
      
      Change-Id: I86c8848ce6626fa218a38bfbd3e39abb60420218
      ff5b2f43
    • Sebastien Alaiwan's avatar
      Always use the 16-bit coding path · 3d264da2
      Sebastien Alaiwan authored
      The encoder and decoder will now use the 16-bit (high-bitdepth)
      coding path, regardless of the encoding profile.
      
      This is a step towards the removal of the 8-bit (low-bitdepth)
      coding path (which remains compile-checked at the moment).
      
      BUG=aomedia:39
      
      Change-Id: I6f8e8f1ce7a3bf1d3da7fda8461b1214ef579c64
      3d264da2
  4. 29 Jun, 2017 1 commit
    • Yue Chen's avatar
      AV1 offline probability optimizer · c8b38b0b
      Yue Chen authored
      This tool is a gadget for offline probability training.
      
      A binary executable aom_entropy_optimizer will be generated in
      tools/. It parses a binary file consisting of counts written in
      the format of FRAME_COUNTS in entropymode.h, and computes the
      optimized probability table, which will be written to a new c file
      optimized_probs.c using the format in entropymode.c.
      
      Command line:
      ./aom_entropy_optimizer [directory of the count file]
      
      The input file can be either be generated from a single run by
      turning on entropy_stats experiment(counts are accumulated from
      frame to frame, and finally written to counts.stt), or be collected
      at a larger scale, at which a python script (will be provided soon)
      can be used to aggregate multiple stats output.
      
      Optimization for initial CDFs will be also supported later.
      
      Change-Id: I32070721aa8059439feb6b5a3a179f1001c66bb7
      c8b38b0b
  5. 27 Jun, 2017 2 commits
    • Todd Nguyen's avatar
      Add experiment bgsprite · 302d0970
      Todd Nguyen authored
      Work in progress to generate ARF with stitched background image.
      
      Change-Id: I2fea75bbe5ac6f713f53eb5825776dadfc1d98c5
      302d0970
    • Urvang Joshi's avatar
      Enable smooth_hv by default. · bda59df3
      Urvang Joshi authored
      This experiment was provisionally adopted on 2017-06-27.
      
      Change-Id: Ic7eb232b8187133f59956eed09e5f5de02c0986e
      bda59df3
  6. 24 Jun, 2017 1 commit
  7. 23 Jun, 2017 2 commits
    • Wei-Ting Lin's avatar
      Add NCOBMC_ADAPT_WEIGHT experiment flag · 9c6f8547
      Wei-Ting Lin authored
      NCOBMC_ADAPT_WEIGHT allow using different interpolation kernels
      to combine overlapped predictions generated using mvs in the
      neighboring blocks.
      This experiment will build on top of MOTION_VAR and it might conflict
      with WARPED_MOTION in the developing stage, so will only be effective
      when MOTION_VAR is on and WARPED_MOTION is off.
      
      Change-Id: I4f1b6e55b6146ed443955751c09bfa22ef2f33e8
      9c6f8547
    • Yaowu Xu's avatar
      Revert "Always use the 16-bit coding path" · cde0a31b
      Yaowu Xu authored
      BUG=aomedia:620
      
      This reverts commit 4da880bd.
      
      Change-Id: I40a2295083b3328ef743d3eab9c2aa514dc698eb
      cde0a31b
  8. 21 Jun, 2017 1 commit
    • Sebastien Alaiwan's avatar
      Always use the 16-bit coding path · 4da880bd
      Sebastien Alaiwan authored
      The encoder and decoder will now use the 16-bit (high-bitdepth)
      coding path, regardless of the encoding profile.
      
      This is a step towards the removal of the 8-bit (low-bitdepth)
      coding path (which remains compile-checked at the moment).
      
      BUG=aomedia:611
      
      Change-Id: Ie764c39a327d48b18d77246a028493b6270b9f88
      4da880bd
  9. 19 Jun, 2017 1 commit
    • Zoe Liu's avatar
      Add new coding tool of ext-comp-refs · c082bbcb
      Zoe Liu authored
      The tool of ext-comp-refs adds the uni-directional compound reference
      prediction. In details, 3 pairs of uni-direcitonal compound references
      are added for the comp ref prediction:
      (LAST_FRAME, LAST2_FRAME),
      (LAST_FRAME, GOLDEN_FRAME), and
      (BWDREF_FRAME, ALTREF_FRAME).
      
      This new tool of ext-comp-refs will eventually overwrite
      one-side-compound and have the two coding tools to merge to one.
      
      It achieves -0.35 ~ -0.55% coding gains in BDRate, compared against
      AV1 baseline with the default experiments on, but without
      one-sided-compound. It achieves -0.2% ~ -0.3% coding gains when
      one-sided-compound is on. It achieves larger gains on higher
      resolution.
      
      Change-Id: Icbdb16e97b96aaebaf2213f5f72d5331e2e358eb
      c082bbcb
  10. 16 Jun, 2017 2 commits
  11. 15 Jun, 2017 1 commit
    • Zoe Liu's avatar
      Add the new coding tool "speed_refs" · d1ac0321
      Zoe Liu authored
      This patch will not cause any performance change regardless of whether
      speed_refs is on or off.
      
      This coding tool is targeted to speed up the encoder side reference
      frame selection process. The essential idea is to have two scanning
      passes for each superblock of size 64x64 and this CL lays out the
      initial framework but no reference frame selection is done yet:
      
      First scanning pass - To simplify the partition and the mode
      candidates (e.g. considering nearestmv / nearmv / zeromv only) and
      identify the best reference frame prediction candidates;
      
      Second scanning pass - Use the best reference frame candidate(s)
      obtained from the first pass to encode the current superblock.
      
      Change-Id: I11266d468de3077271a5e866eebd341a8014d136
      d1ac0321
  12. 14 Jun, 2017 1 commit
  13. 13 Jun, 2017 2 commits
    • Lester Lu's avatar
      Add experimental flag for line graph transforms · 46fd1a05
      Lester Lu authored
      Change-Id: Iba98b07d2f19fd98be07d0c2c80c855661df778d
      46fd1a05
    • Zoe Liu's avatar
      Add encoder/decoder pipeline to support single ref comp modes · 85b66463
      Zoe Liu authored
      Now the single ref comp mode should work with WEDGE and
      COMPOUND_SEGMENT. For motion_var, the OBMC_CAUSAL mode uses the 2nd
      predictor if the neighboring block is single ref comp mode predicted.
      
      This patch removes the mode of SR_NEAREST_NEWMV and leaves four
      single ref comp modes in total:
      
      SR_NEAREST_NEARMV
      SR_NEAR_NEWMV
      SR_ZERO_NEWMV
      SR_NEW_NEWMV
      
      Change-Id: If6140455771f0f1a3b947766eccf82f23cc6b67a
      85b66463
  14. 12 Jun, 2017 1 commit
    • Yue Chen's avatar
      Add a new experimental flag SBL_SYMBOL · 536e5520
      Yue Chen authored
      A new experiment SBL_SYMBOL, meaning superblock-level symbols, will
      be explored. It allows some symbols being coded at superblock level
      (64x64) by checking whether a symbol(e.g. motion_mode, tx depth,
      and interpolation filter) is identical across macroblocks in a
      superblock.
      
      Change-Id: I38408325c9b7a4b94c11c400a5060036ce36405e
      536e5520
  15. 08 Jun, 2017 1 commit
    • Sebastien Alaiwan's avatar
      Revert "Enable one_sided_compound by default" · 8e3da097
      Sebastien Alaiwan authored
      This reverts commit bf3813a1.
      
      Reason for revert: feature not ready.
      Incompatible with lossless under some circumstances,
      causes the following assertion failure:
      Assertion `(!is_compound) == (cm->reference_mode == SINGLE_REFERENCE)' failed
      
      BUG=aomedia:575
      
      Change-Id: I63a2b38ce3b7cb50108ac559cca0768b4579c9ae
      8e3da097
  16. 06 Jun, 2017 1 commit
    • Urvang Joshi's avatar
      Add a new experiment "rect-intra-pred". · 766a389b
      Urvang Joshi authored
      Earlier, intra prediction for rectangular blocks was performed by
      running two steps of prediction on square sub-blocks.
      
      With this experiment, we do proper intra prediction for rectangular
      blocks. This ensures that we make use of all available neighboring
      pixels especially for directional modes. For this, all the intra
      predictors were updated to work with rectangular transform block sizes.
      
      Performance improvements are small but free of cost:
      
      All Intra frames:
      lowres: -0.126
      midres: -0.154
      
      Video Overall:
      lowres: -0.043
      midres: -0.100
      
      [Could not get AWCY results due to a backlog.]
      
      BUG=aomedia:551
      
      Change-Id: I7936e91b171d5c246cb0a4ea470a981a013892e6
      766a389b
  17. 02 Jun, 2017 2 commits
    • Ryan Lei's avatar
      integrate parallel_deblocking with CB4x4 · 17905edf
      Ryan Lei authored
      this change makes parallel deblocking experiment works with
      cb4x4. the inner loop process every 4x4 block.
      
      Change-Id: I86adb3d7b6d67a91ccc12aab29da9bfb8c522cf1
      17905edf
    • Jingning Han's avatar
      Resolve extremely large stack alloc in rdopt · d064cf03
      Jingning Han authored
      Move the large stack allocation from stack initialization to
      dedicated mem space. This resolves the extremely large stack issue
      when ext-partition, motion-var, and high bit-depth are all turned
      on.
      
      BUG=aomedia:415
      
      Change-Id: I85b77bbc6429093fcb0152176d9e237087d6bbd8
      d064cf03
  18. 01 Jun, 2017 1 commit
  19. 30 May, 2017 1 commit
  20. 29 May, 2017 1 commit
  21. 28 May, 2017 1 commit
  22. 25 May, 2017 3 commits
    • Nathan E. Egge's avatar
      Remove the DAALA_EC experiment. · 476c63c1
      Nathan E. Egge authored
      This patch forces DAALA_EC on by default and removes the dkbool coder.
      
      Change-Id: Icd2ff08efd7bf467adf554344111473cb357adf8
      476c63c1
    • Zoe Liu's avatar
      Add a new experiment of var_refs · e1787b97
      Zoe Liu authored
      This coding tool is targeted to check redundant references available
      to each frame at the frame level, and then try to save bits to avoid
      coding redundant reference information at the block level.
      
      Change-Id: I320178a9fe0cd806960318ac59659808675e5176
      e1787b97
    • Urvang Joshi's avatar
      tx64x64: Fix build when highbitdepth is on. · 16247658
      Urvang Joshi authored
      This was being worked around by forcing highbitdepth to be off when
      enabling tx64x64.
      
      With the fixes, removed the work-around.
      
      Change-Id: I3102f9e17d4037af96a9eff418c5af6a97fd740c
      16247658
  23. 24 May, 2017 2 commits
  24. 22 May, 2017 2 commits
  25. 20 May, 2017 2 commits
    • hui su's avatar
      DPCM intra coding experiment · b8a6fd6b
      hui su authored
      Encode a block line by line, horizontally or vertically. In the vertical
      mode, each row is predicted by the reconsturcted row above;
      in the horizontal mode, each column is predicted by the reconstructed
      column to the left.
      
      The DPCM modes are enabled automatically for blocks with horizontal or
      vertical prediction mode, and 1D transform types (ext-tx).
      
      Change-Id: I133ab6b537fa24a6e314ee1ef1d2fe9bd9d56c13
      b8a6fd6b
    • Nathan E. Egge's avatar
      Replace EC_MULTISYMBOL with DAALA_EC || ANS. · cd539518
      Nathan E. Egge authored
      Change-Id: Ia0eb3a3694fdbe9d33548ff4014b704b2f3db86a
      cd539518
  26. 19 May, 2017 3 commits