1. 01 Nov, 2016 1 commit
  2. 31 Oct, 2016 10 commits
  3. 30 Oct, 2016 9 commits
    • Deng's avatar
      simp-mv-pred integration with ref-mv · ca8d24d4
      Deng authored
      This commit adds simp-mv-pred experiment. The experiment is to work on
      top of ref-mv experiment to save memory bandwidth and reduce the size
      of line buffer needed in ref-mv experiment.
      When compared to ref-mv, this experiment showed:
      low-delay BDR gain: 0.03%
      High-delay BDR gain: 0.01%
      memory/memory bandwidth saving: 40%
      local memory/gate count saving: 20%
      Change-Id: Ic4006e041fc58ede411da83d0d730c464ebe1749
    • Jingning Han's avatar
      Fix the top-right reference block location · ea9cf097
      Jingning Han authored
      This commit fixes the top-right reference block location for block
      sizes above 8x8. It improves the coding performance of ref-mv:
      lowres 0.08%
      midres 0.15%
      Thanks to jiafeng@ for finding this issue.
      Change-Id: I70750fc7b18bf0126d3e07abc1b63ca5a160193e
    • Thomas Daede's avatar
      Upsample reference frames after size dependent speed features are calculated. · 919bd6ab
      Thomas Daede authored
      This prevents a crash if the upsample_refs speed feature is
      changed as part of set_size_dependent_vars, when the recode
      loop is enabled.
      Change-Id: I645e389bfe961879dd2001439a34fde2993868d9
    • Angie Chiang's avatar
      Let is_interp_needed always return 1 · a69ce1b3
      Angie Chiang authored
      This CL will cause
      0.122% PSNR drop on lowres dataset
      0.059% PSNR drop on midres dataset
      However, it will facilitate hardware implementation.
      Change-Id: I0a0713acacbfd571509a721337711c021915dd3c
    • Nathan E. Egge's avatar
      Centralize EC_MULTISYMBOL error checking. · baaaa161
      Nathan E. Egge authored
      The EC_ADAPT experiment cannot work unless EC_MULTISYMBOL is also
      This patch replaces all individual checks with a centralized check in
       both the bitreader.h and bitwriter.h.
      Change-Id: I418852d95c5012cc074ed65cd24997e08bc2aadd
    • Thomas Davies's avatar
      EC_ADAPT: refactor and fix MinArfFreq unit tests. · 6519bebf
      Thomas Davies authored
      Ensure that cdfs are synced with pdfs after every
      forward update.
      Change-Id: I5677f78300156c8622f1728d7a343ff6c3a4ea64
    • Thomas Davies's avatar
      EC_ADAPT: send updates for the correct nodes. · 09ebbfb3
      Thomas Davies authored
      EOB and ZERO token are not currently adapted.
      Change-Id: Ie7d657b71fcb157b09e40874fb06a8b7cd95cc70
    • Alex Converse's avatar
      Add ec_multisymbol for common daala_ec and rans code · aca9feba
      Alex Converse authored
      The new ec_multisymbol experiment supersedes the rans experiment and is
      used for multisymbol features that can be backed by either daala_ec or
      This experiment is automatically enabled by ec_adapt and will try to
      enable daala_ec or ans (in that order).
      Change-Id: Ie75b4002b7a9d7f5f7b4d130c1aacb3dbe97e54f
    • Alex Converse's avatar
      Fix ec_adapt+daala_ec test failure · bc0a5bac
      Alex Converse authored
      AV1/AqSegmentTest.TestNoMisMatchAQ1/6 was failing with this experiment
      Change-Id: I8c53a043471a87a98a06687afce2e28891592362
  4. 29 Oct, 2016 2 commits
    • Thomas's avatar
      Add EC_ADAPT experiment for symbol-adaptive entropy coding. · 9ac5508f
      Thomas authored
      This experiment performs symbol-by-symbol statistics
      adaptation for non-binary symbols. It requires DAALA_EC or
      RANS and ANS to be enabled. The adaptation is currently
      based on a simple recursive filter and is taken from
      Daala. It has an adaptation rate dependent on alphabet size,
      taken from Daala. It applies wherever non-binary symbols
      are encoded using Cumulative Probability Functions rather
      than trees.
      Where symbols are adapted, forward updates in the compressed
      header are removed.
      In the case of RANS coefficient token values are adapted,
      with the exception of the zero token which remains a
      binary symbol. In the case of DAALA_EC other values
      such as inter and intra modes are adapted as CDFs are
      provided in those cases.
      The experiment is configured with:
      ./configure --enable-experimental --enable-daala-ec --enable-ec-adapt
      ./configure --enable-experimental --enable-ans --enable-rans \
      EC_ADAPT is not currently compatible with tiles.
      BDR results on Objective-1-fast give a small loss:
      PSNR YCbCr:      0.51%      0.49%      0.48%
      PSNRHVS:      0.50%
      SSIM:      0.50%
      MSSSIM:      0.51%
      CIEDE2000:      0.50%
      Change-Id: I3888718e42616f3fd87144de7f125228446ac984
    • Jingning Han's avatar
      Use the actual transform block size for loop filter selection · 9fb1d69e
      Jingning Han authored
      Parse the recursive transform block partition to fetch the actual
      transform size. Use this correct transform size to select the
      corresponding loop filter kernel. This slightly improves the coding
      performance of recursive transform partition for hdres to 0.14%.
      Change-Id: Ibe8bc3fdd0d222a4f1fb8156c56a407bec052b9b
  5. 28 Oct, 2016 15 commits
    • Jingning Han's avatar
      Replace num_4x4_blocks_txsize_loopup table · 32b2028b
      Jingning Han authored
      Unify the transform block size access table in preparation for
      2x2 transform integration.
      Change-Id: I308def6729e138ae2b2542175206e3225c0cb392
    • Jingning Han's avatar
      Refactor rate-distortion optimization of recursive transform partition · 9fdc4229
      Jingning Han authored
      Support rectangular transform block in the rate-distortion cost
      Change-Id: I99201fcae797c1ed2f2184021a215867eac0288f
    • Urvang Joshi's avatar
      RANGE_CHECK: "==" || ">" is simply ">=". · cd8ab904
      Urvang Joshi authored
      - For unsigned ints, don't check value >= 0 as that is always true.
      - Add "-Wlogical-op" warning flag which would have warned that "logical
        'or' of collectively exhaustive tests is always true" before this
      Change-Id: Idf3bd312464397f2df19256fc69b22f345dc7753
    • Sarah Parker's avatar
      Bitwise to logical & in rdopt ext tx prune function · 68a26b6b
      Sarah Parker authored
      Making this change in case the future implementation changes and the
      compairson is no longer between single bits.
      Change-Id: I94f474ce7d82febfa23cec65cbe1b9d240b42e02
    • Thomas Davies's avatar
      Tile groups: ensure each tile in a TG has a length. · 8fe64a3a
      Thomas Davies authored
      This ensures TGs can be decoded even if the whole
      frame has not been received and the frame length
      is not known.
      Change-Id: If24837fcc3b5c46554751be792e91100de73e8d6
    • Jingning Han's avatar
      Fix update_delta_q_probs compile warning · be44c5f4
      Jingning Han authored
      Change-Id: Ifb93970ed876ed61259b2f8da739171857c97fda
    • Zoe Liu's avatar
      Clean the code in ref frame context decision for ext-refs · 782c9643
      Zoe Liu authored
      For compound mode, it is a sure thing that one of the 2 reference frames
      would be either a forward predictive reference, or a backward predictive
      reference, and the other would provide a different prediction.
      Change-Id: I8d7b40525bec4db0f26ba255c8eefa9f20bd52a3
    • Thomas Davies's avatar
      Encode and decode multiple tile groups · 80188d15
      Thomas Davies authored
      This is a manual adaptation of the following commit from aom/master:
      The original commit message:
      A tile group is a set of tiles in scan order.
      Each tile group has a version of uncompressed and compressed headers,
      identical apart from tile group parameters.
      Encoding probability updates takes account of the number of
      headers to control overheads.
      The decoder supports arbitrary numbers of tile groups with
      arbitrary number of tiles. The number of tiles in a TG is
      signalled in the uncompressed header for that TG.
      The encoder currently only supports a fixed number
      of TGs (3, when error resilient mode is on) of equal size
      (except possibly for the last one).
      The average BDR performnce with 3 tile groups versus
      anchor with error resilient mode and up to 16 tiles is:
      NR YCbCr:      3.02%      3.04%      3.05%
      PSNRHVS:      3.09%
      SSIM:      3.06%
      MSSSIM:      3.05%
      CIEDE2000:      3.04%
      Change-Id: I9b97c5ed733103b9160a3a5d4370de5322c00c0b
    • Urvang Joshi's avatar
      get_palette_color_context: Make code more readable. · 79f4fc47
      Urvang Joshi authored
      For clarity, use separate variables for 'color_ctx_hash' and
      'color_ctx' instead of reusing same variables for both.
      Change-Id: I3a516ea54353e1f0737822c613a68da252e30c6e
    • Angie Chiang's avatar
      Fix tmp_rd type error in handle_inter_mode() · 3655dcd4
      Angie Chiang authored
      Change-Id: I9398c77c12e9c4caa19a76b92e3035a3135cfd7a
    • Jingning Han's avatar
      Refactor recursive transform block partition search · 58224044
      Jingning Han authored
      Use unified transform block size and coding block size map. This
      prepares for the integration of 2x2 transform block size and the
      rectangular transform block size.
      Change-Id: I99f51017d19aef337639b708ee9c7faedcc20935
    • Jingning Han's avatar
      Simplify logics in encode_inter_mb_segment · c4049db5
      Jingning Han authored
      Unify coefficient context used by different experiments. Make
      block size and transform block size consistent with rest codebase.
      Change-Id: I237336f161d6c473b88c59c48ee68d24b75ce738
    • Jingning Han's avatar
      Refactor recursive transform block decoding · 5f614264
      Jingning Han authored
      Unify the transform block and coding block mapping.
      Change-Id: Ifb394809a4aafee6adf2b49a2607036cf13c878e
    • Jingning Han's avatar
      Refactor recursive transform block size decoding · 65abc314
      Jingning Han authored
      Unify the transform block size to block size mapping.
      Change-Id: Ic7359d016cd5965983c4a5476624c09f3123f91c
    • Angie Chiang's avatar
      Pass block pixel width/height into av1_predict_intra_block · 45c198a1
      Angie Chiang authored
      Change-Id: Ia69bceef24b61b0a222783eba79e7a70bb60edd8
  6. 27 Oct, 2016 3 commits