1. 26 Jul, 2017 1 commit
  2. 14 Jul, 2017 1 commit
    • Wei-Ting Lin's avatar
      ncobmc_adapt_weight: read/write ncobmc mode · ca710d68
      Wei-Ting Lin authored
      An ncobmc mode is selected for each squared block
      (if motion_mode == ncobmc_adapt_weight) as opposed
      to four in training
      
      Change-Id: I81e5dfca3a6fec5a95c96b17f294530880cf8f88
      ca710d68
  3. 13 Jul, 2017 2 commits
  4. 12 Jul, 2017 2 commits
    • Rupert Swarbrick's avatar
      ext-partition-types: Add 4:1 partitions · 93c39e91
      Rupert Swarbrick authored
      This patch adds support for 4:1 rectangular blocks to various common
      data arrays, and adds new partition types to the EXT_PARTITION_TYPES
      experiment which will use them.
      
      This patch has the following restrictions, which can be lifted in
      future patches:
      
        * ext-partition-types is incompatible with fp_mb_stats and supertx
          for the moment
      
        * Currently only 32x32 superblocks can use the new partition types
      
      There's a slightly odd restriction about when we allow
      PARTITION_HORZ_4 or PARTITION_VERT_4. Since these both live in the
      EXT_PARTITION_TYPES CDF, read_partition() can only return them if both
      has_rows and has_cols is true. This means that at least half of the
      width and height of the block must be visible. It might be nice to
      relax that restriction but that would imply a change to how we encode
      partition types, which seems already to be in a state of flux, so
      maybe it's better to wait until that has settled down.
      
      Change-Id: Id7fc3fd0f762f35f63b3d3e3bf4e07c245c7b4fa
      93c39e91
    • Zoe Liu's avatar
      Further work on ext-comp-refs for ref frame coding · fcf5fa27
      Zoe Liu authored
      (1) Work with var-refs to remove redundant bits in ref frame
          coding;
      (2) Add a new uni-directional compound reference pair:
          (LAST_FRAME, LAST3_FRAME);
      (3) Redesign the contexts for encoding uni-directional reference frame
          pairs;
      (4) Use aom_entropy_optimizer to collect stats for all the default
          probability setups related to the coding of reference frames.
      
      Compared against the baseline (default enabled tools excluding ext-tx
      and global-motion for encoder speed concern) with one-sided-compound,
      the coding gain of ext-comp-refs + var-refs - one-sided-compound is:
      
      lowres: avg_psnr -0.385%; ovr_psnr -0.378% ssim -0.344%
      midres: avg_psnr -0.466%; ovr_psnr -0.447% ssim -0.513%
      
      AWCY - High Latency:
         PSNR | PSNR Cb | PSNR Cr | PSNR HVS |    SSIM | MS SSIM | CIEDE 2000
      -0.2758 | -0.1526 | -0.0965 |  -0.2581 | -0.2492 | -0.2534 |    -0.2118
      
      AWCY - Low Latency:
         PSNR | PSNR Cb | PSNR Cr | PSNR HVS |    SSIM | MS SSIM | CIEDE 2000
      -1.0467 | -1.4500 | -0.9732 |  -0.9928 | -1.0407 | -1.0180 |    -1.0049
      
      Compared against the baseline (default enabled tools excluding ext-tx
      and global-motion for encoder speed concern) without
      one-sided-compound, the coding gain of
      ext-comp-refs + var-refs - one-sided-compound is:
      
      lowres: avg_psnr -0.875%; ovr_psnr -0.877% ssim -0.895%
      midres: avg_psnr -0.824%; ovr_psnr -0.802% ssim -0.843%
      
      Change-Id: I8de774c9a74c20632ea93ccb0c17779fa94431cb
      fcf5fa27
  5. 11 Jul, 2017 3 commits
    • Nathan E. Egge's avatar
      Remove the EC_ADAPT experimental flags. · 6bdc40f1
      Nathan E. Egge authored
      Removing these flags make the EC_ADAPT experiment an integral part of
       the draft AV1 bitstream definition
      This commit has no effect on metrics.
      
      Change-Id: Ice78520935e8bfa9d25cf4b8384a1b872069d09c
      6bdc40f1
    • Thomas Davies's avatar
      NEW_MULTISYMBOL: use CDFs for palette tree coding. · ce7272d2
      Thomas Davies authored
      AWCY results, 1 frame, tune-content=1
      
      objective-1-fast:
      PSNR (Y, Cb, Cr) : -0.26%, -0.24%, -0.26%
      PSNR-HVS         : -0.26%
      MS-SSIM          : -0.25%
      
      screenshots:
      PSNR (Y, Cb, Cr) :  -2.28%, -2.29%, -2.29%
      PSNR-HVS         :  -2.30%
      MS-SSIM          :  -2.26%
      
      twitch-1 :
      PSNR (Y, Cb, Cr) : -0.73%, -0.73%, -0.73%
      PSNR-HVS         : -0.75%
      MS-SSIM          : -0.74%
      
      Change-Id: I7aac475710ab3895778d7ff05d9113f5713133b1
      ce7272d2
    • Thomas Davies's avatar
      Adapt motion mode syntax. · 04e5aa7f
      Thomas Davies authored
      Remove deprecated tree coding when EC_ADAPT is on.
      
      AWCY, objective-1-fast, High Latency:
      
      PSNR (Y, Cb, Cr) : -0.10%, -0.40%, -0.37%
      SSIM: -0.11%
      PSNR-HVS: -0.07%
      MS-SSIM: -0.06%
      
      Change-Id: Ic2d436e037312e1af238a8586983f1288a9a95a8
      04e5aa7f
  6. 10 Jul, 2017 3 commits
  7. 07 Jul, 2017 3 commits
    • Thomas Davies's avatar
      NEW_MULTISYMBOL: adapt remaining INTERINTRA syntax elements. · cff9171e
      Thomas Davies authored
      AWCY, objective-1-fast, High Latency :
      -0.14% all metrics with NEW_MULTISYMBOL on (reference
          with NEW_MULTISYMBOL off).
      
      Change-Id: I7cb3d05977d5e424fd38a40ab558c87c5d811f14
      cff9171e
    • Thomas Davies's avatar
      INTERINTRA : adapt interintra_mode as cdf. · 299ff04f
      Thomas Davies authored
      Use CDFs to code intrainter_mode instead of deprecated
      tree coding.
      
      AWCY, objective-1-fast, High Latency :
      -0.02% all metrics, standard configuration
      
      Change-Id: I839eec7cae9783e28d2018511989b7b56dc948a5
      299ff04f
    • Thomas Davies's avatar
      Adapt the compound_type syntax element. · d8dac22f
      Thomas Davies authored
      This syntax element was encoded using legacy tree encoding, and is
      used in the compound_segment and wedge experiments.
      
      AWCY: -0.01% all metrics (objective-1-fast, High Latency)
      
      Change-Id: I3771ed27e13dd74841c615bec4c2918d39b76093
      d8dac22f
  8. 06 Jul, 2017 1 commit
  9. 05 Jul, 2017 2 commits
  10. 03 Jul, 2017 1 commit
    • Nathan E. Egge's avatar
      Remove the av1_intra_mode_tree const with EC_ADAPT. · 5694aa7b
      Nathan E. Egge authored
      When EC_ADAPT is enabled, this adds const av1_intra_mode_ind and
       av1_intra_mode_inv arrays and removes the av1_intra_mode_tree const.
      This commit has no effect on metrics.
      
      Change-Id: I1de8f4ea91269adacd7fdadbc8426f641ef866f0
      5694aa7b
  11. 28 Jun, 2017 1 commit
  12. 27 Jun, 2017 1 commit
    • Wei-Ting Lin's avatar
      ncobmc_adapt_weight: Add bitstream syntax · 85a8f70c
      Wei-Ting Lin authored
      Define the syntax and entropy coding templates for
      NCOBMC_ADAPT_WEIGHT. The actual values of the default
      probabilities and the index tree structure need to
      be fine tuned.
      
      In this experiment all mv's in a superblock are sent
      first as in the ncobmc case.
      
      Change-Id: I68d50d3d27346c2847ea449a1168c6a99fbb4d3d
      85a8f70c
  13. 21 Jun, 2017 1 commit
  14. 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
  15. 16 Jun, 2017 5 commits
  16. 14 Jun, 2017 1 commit
    • Thomas Davies's avatar
      GLOBAL_MOTION: simplify parameter coding. · b732c1ea
      Thomas Davies authored
      Remove deprecated tree coding for the global motion type.
      Encoding with literals costs at most 0.8 bit per frame or
      tile group for the identity type, and saves bits for other
      types.
      
      AWCY (objective-1-fast): PSNR +0.02%, PSNR-HVS/MSSSIM +0.03%.
      
      Change-Id: I421a39fd8f830b2e40d105ea3c3688099a2b6d15
      b732c1ea
  17. 13 Jun, 2017 1 commit
  18. 08 Jun, 2017 1 commit
  19. 02 Jun, 2017 1 commit
    • Alex Converse's avatar
      intrabc: adapt use_intrabc prob · 7c412ea4
      Alex Converse authored
      First keyframe BD-RATE objective-1-fast:
         PSNR | PSNR Cb | PSNR Cr | PSNR HVS |    SSIM | MS SSIM | CIEDE 2000
      -0.3705 | -0.3232 | -0.3812 |  -0.3782 |     N/A | -0.3412 |        N/A
      
      First keyframe BD-RATE twitch-1:
         PSNR | PSNR Cb | PSNR Cr | PSNR HVS |    SSIM | MS SSIM | CIEDE 2000
      -0.2479 | -0.2477 | -0.2467 |  -0.2567 | -0.2486 | -0.2508 |    -0.2487
      
      
      
      Change-Id: Iea6c895c6fe9e9764887a8968f6e5330903969d3
      7c412ea4
  20. 01 Jun, 2017 1 commit
    • Timothy B. Terriberry's avatar
      cb4x4: Move sub-4X4 TX sizes behind CONFIG_CHROMA_2X2. · fe67ed6a
      Timothy B. Terriberry authored
      cb4x4 itself should not require these sizes.
      
      This simplifies compatibility with other experiments, since we can
      first make them work with cb4x4 (which is now on by default), and
      then worry about chroma_2x2 (which is not) in separate steps.
      
      Encoder and decoder output should remain unchanged.
      
      Change-Id: I4e9fcdae49f238b5099a3c74a398fe993c2545f8
      fe67ed6a
  21. 25 May, 2017 1 commit
  22. 21 May, 2017 1 commit
    • Timothy B. Terriberry's avatar
      cb4x4: Fix indexing of tx_size counts. · fe0fb1d9
      Timothy B. Terriberry authored
      Create named constants for the minimum TX_SIZE used in the luma
      plane, as well as the minimum allowed TX_SIZE for which we have to
      explicitly code a selection (i.e., one larger than the minimum luma
      TX_SIZE).
      
      Then, use these constants consistently with tx_size_to_depth() to
      index the tx_size counts in FRAME_COUNTS, and also consistently use
      TX_SIZE named constants to index the tx_size_implied counts.
      
      Failing to index these counts correctly can, e.g., cause tx_mode to
      be chosen incorrectly.
      
      Change-Id: I706a62a33e2282e67c97a68bade87fb8023ec13b
      fe0fb1d9
  23. 20 May, 2017 1 commit
  24. 19 May, 2017 1 commit
  25. 16 May, 2017 1 commit
  26. 11 May, 2017 1 commit
    • Yue Chen's avatar
      Add CONFIG_INTERINTRA flags and reduce # of interintra modes to 4 · 4d26acb4
      Yue Chen authored
      Use CONFIG_INTERINTRA to properly separate interintra from the basic
      ext_inter experiment.
      When macro REDUCE_INTERINTRA_MODES is 1, only 4 ii modes are enabled
      so as to reduce the complexity overhead.
      (Right now the flag is off)
      
      Change-Id: Iec6f36a1000f181adbb822ad66c7d5b2625e9cc7
      4d26acb4
  27. 10 May, 2017 1 commit
    • Luc Trudeau's avatar
      [CFL] use CDF_SIZE macro · e21c0811
      Luc Trudeau authored
      EC_ADAPT stores the count at the last position. As such, the CDF_SIZE
      macro adds 1 to the array size. This resolves valgrind warnings about
      jumps on uninitialized variables.
      
      Change-Id: I58d607a57756cb166a9ae5c4565537ce202183fd
      e21c0811