1. 16 Oct, 2017 2 commits
    • Sebastien Alaiwan's avatar
      Remove compile guards for CONFIG_EXT_REFS · 365e644a
      Sebastien Alaiwan authored
      This experiment has been adopted, we can simplify the code
      by dropping the associated preprocessor conditionals.
      Change-Id: I4705652ac8231ee25f960e8096dc97c2aeed1d20
    • Hui Su's avatar
      Remove the intra-interp experiment · 259d4422
      Hui Su authored
      This experiment uses switchable interpolation filter for intra
      prediction. Current gain is too small to be useful for AV1.
      May explore more for AV2 in the future.
      Change-Id: I24ae8c75dc71adf6271eabdb68a81b68a0869fa2
  2. 15 Oct, 2017 4 commits
  3. 14 Oct, 2017 5 commits
  4. 13 Oct, 2017 13 commits
  5. 12 Oct, 2017 14 commits
    • Urvang Joshi's avatar
      Superres + loop restoration: Use 6 taps. · 26e0a693
      Urvang Joshi authored
      Change-Id: Ib4d6f43d174b8897419cada0d19bfb132353e169
    • Alexander Bokov's avatar
      Fine-tune loop-filter level prediction for 8 bit · ac504f72
      Alexander Bokov authored
      Change-Id: I1269acec6c80c8c51c22b2adb4962bd1db646304
    • James Zern's avatar
      aom_codec.h: namespace local defines · ef9ff451
      James Zern authored
      add AOM_ to UNUSED/*DEPRECATED to avoid conflicts with other
      Change-Id: I644e55f66e67aff3d43086c75e2ac9a646e4450c
    • Sebastien Alaiwan's avatar
      overflow check: don't rely on undefined behavior · 84fa3a4f
      Sebastien Alaiwan authored
      A compiler is allowed to optimize away the comparison because
      it assumes that signed integers *won't* overflow.
      Integer overflows can be more reliably detected using
      the undefined behavior sanitizer from gcc/llvm, e.g:
      $ LDFLAGS="-fsanitize=undefined" \
        ./configure --extra-cflags="-fsanitize=undefined"
      See Issue 903 for an example.
      Change-Id: Ia157910c72eeadf75975125349402b66c085c074
    • Sebastien Alaiwan's avatar
      Coding path sync test: force subsampling · 9362a517
      Sebastien Alaiwan authored
      Change-Id: Ie52b2e32c2a0832655fd66f7f6c83cc1f2b13b4d
    • Debargha Mukherjee's avatar
      Fix mv clamping when superres is used · 5433fa49
      Debargha Mukherjee authored
      Change-Id: Ide71432cb85858362360e3c4ae8404f75ff9ba03
    • Yunqing Wang's avatar
      Find warped reference MV · 97d6a37e
      Yunqing Wang authored
      While finding the reference MV for a block, if one neighbouring block's
      motion mode is warped motion mode, instead of directly adding that
      block's MV to the candidate MV list, we use that neighbouring block's
      warped motion parameters to compute a MV for the center point of the
      current block, and then add that MV to the candidate MV list.
      Borg test result:
                   avg_psnr ovr_psnr ssim
      cam_lowres:  -0.507   -0.514  -0.685
      lowres:      -0.114   -0.122  -0.180
      The change is added under ext_warped_motion config flag.
      Change-Id: I3ce6290a1fd512b613eab5d7620c8bcb08f189a6
    • Yue Chen's avatar
      filter_intra: make fi mode index entropy coded · 63ce36fc
      Yue Chen authored
      Make fi mode index entropy coded instead of using raw bits. Mode
      cost estimation in key-frame RDO is updated as well. Modification
      to inter frame RDO is not included in this patch.
      Also key-frame y mode cdf table is re-trained since fi modes are
      attached to DC_PRED
      Key frame BDRate:
      -0.399% lowres, -0.339% midres
      Change-Id: I9ccf478b0a2e48fb1870fe8451e45e2c858a5f63
    • Yue Chen's avatar
      entropy_stats: modify output for intra coder · 1f9343a3
      Yue Chen authored
      Align the output of prob optimizer with what is needed by intra
      Change-Id: Icdecb33240a5691c8c292946faa00d0bfebee742
    • David Barker's avatar
      Make SEG_LVL_{SKIP,ZEROMV} blocks be single-ref-only · d92f3560
      David Barker authored
      This patch modifies the interpretation of SEG_LVL_SKIP and
      SEG_LVL_ZEROMV slightly, to fix a decoder crash and to save bits
      in the intended use cases of these segment flags.
      Previously, blocks using either of these segment flags could
      signal reference frames just like any other block. But the mode
      was implicitly taken to be ZEROMV. This worked fine in VP9, but
      crashed for compound blocks in AV1 since those should use
      ZERO_ZEROMV instead.
      Now we make it so that SEG_LVL_SKIP and SEG_LVL_ZEROMV imply
      that the block is single-reference. The reference to use is taken
      from the SEG_LVL_REF_FRAME segment feature if that is present,
      or is set to LAST_FRAME if not. See the attached bug report
      for the reasoning behind this.
      As a related change, we also teach the encoder how to deal with
      the combination of SEG_LVL_SKIP + SEG_LVL_REF_FRAME.
      Change-Id: I5e657cbfc1f08395a0301cba701edfb1682502a5
    • Yaowu Xu's avatar
      Align stack arrays to be 16-byte aligned · 2e6f6a73
      Yaowu Xu authored
      This fixes a number of segmentation faults.
      Change-Id: I9d1c549e9c7d44a03c5b1b35e8de389c085d95b8
    • Yaowu Xu's avatar
      Fix msvc 2015 build · 989dd5bf
      Yaowu Xu authored
      Change-Id: I9ca596f677e174ccd12a6e4eb927733d25e76f58
    • Yaowu Xu's avatar
      Use correct MACRO · fbe1477b
      Yaowu Xu authored
      Change-Id: I6d24382fe9afbc86068e56e55d5a495ced57b9a0
    • Rupert Swarbrick's avatar
      Support 4:1 partitions in count_segs_sb · 2725693d
      Rupert Swarbrick authored
      Change-Id: I5c3eb62407c8025650d4023dd408674381312d26
  6. 11 Oct, 2017 2 commits