1. 20 Oct, 2016 1 commit
  2. 19 Oct, 2016 4 commits
    • Alex Converse's avatar
      Partition the ans experiment into 'ans' and 'rans' · ec6fb649
      Alex Converse authored
      The (new) ans experiment replaces the bool coder with uABS bools. The
      'rans' experiment adds multisymbol coding.
      
      This matches the setup in aom/master.
      
      Change-Id: Ida8372ccabf1e1e9afc45fe66362cda35a491222
      ec6fb649
    • Nathan E. Egge's avatar
      Change return type of tell and tell_frac to uint32_t. · b244f396
      Nathan E. Egge authored
      The bit accounting functions aom_reader_tell() and aom_reader_tell_frac()
       return the number of bits and 1/8th bits respectively.
      This patch changes the return type from ptrdiff_t which is signed to
       uint32_t which is unsigned.
      The size_t type is not used since we only care about the number of bits
       or 1/8 bits per entropy coder context and we don't expect to code more
       than 512 megabits per tile.
      
      Change-Id: I84a119d1f52829dcbdb66a92656eacca06e42b11
      b244f396
    • Michael Bebenita's avatar
      Bit accounting. · 6048d052
      Michael Bebenita authored
      This patch adds bit account infrastructure to the bit reader API.
      When configured with --enable-accounting, every bit reader API
      function records the number of bits necessary to decoding a symbol.
      Accounting symbol entries are collected in global accounting data
      structure, that can be used to understand exactly where bits are
      spent (http://aomanalyzer.org). The data structure is cleared and
      reused each frame to reduce memory usage. When configured without
      --enable-accounting, bit accounting does not incur any runtime
      overhead.
      
      All aom_read_xxx functions now have an additional string parameter
      that specifies the symbol name. By default, the ACCT_STR macro is
      used (which expands to __func__). For more precise accounting,
      these should be replaced with more descriptive names.
      
      Change-Id: Ia2e1343cb842c9391b12b77272587dfbe307a56d
      6048d052
    • Urvang Joshi's avatar
      Fix warnings reported by -Wshadow: Part1: aom_dsp directory · fdb60962
      Urvang Joshi authored
      While we are at it:
      - Rename some variables to more meaningful names
      - Reuse some common consts from a header instead of redefining them.
      
      Cherry-picked from aomedia/master: 09eea219
      
      Change-Id: I61030e773137ae107d3bd43556c0d5bb26f9dbf8
      fdb60962
  3. 18 Oct, 2016 5 commits
  4. 17 Oct, 2016 3 commits
    • Nathan E. Egge's avatar
      Fix warning when discarding const qualifier. · 19698a70
      Nathan E. Egge authored
      Cherry-pick Daala 211c2a41: Clean up EC tell() and tell_frac() functions.
      Add a const qualifier to the od_ec_enc and od_ec_dec parameters of
       the od_ec_enc_tell(), od_ec_enc_tell_frac(), od_ec_dec_tell(), and
       od_ec_dec_tell_frac() functions.
      Add an OD_WARN_UNUSED_RESULT to od_ec_enc_tell_frac().
      
      Change-Id: Ia50e2fd75e98d8a03d993449d658b695cf56e6fb
      19698a70
    • Nathan E. Egge's avatar
      Revert code formatting of OD_UNIFORM_CDFS_Q15. · f3035f2b
      Nathan E. Egge authored
      The formatting of OD_UNIFORM_CDFS_Q15[] in entcode.c is helpful for
       for understanding what is contained in the array (e.g., the uniform
       probability distributions of small sizes 2 through 16).
      This patch reverts the change made in f4b2926d and adds linter hints to
       ignore the formatting.
      
      Change-Id: I2ad9fe6673b86e6067cb97b40f0f0e69a119cdf5
      f3035f2b
    • Nathan E. Egge's avatar
      Rename aom_write_tree_cdf() to aom_write_symbol(). · 56eeaa5d
      Nathan E. Egge authored
      Change-Id: I7c088c55f1c461063976d5bd84ff2026c4f3bc69
      56eeaa5d
  5. 14 Oct, 2016 15 commits
  6. 13 Oct, 2016 9 commits
  7. 12 Oct, 2016 3 commits
    • Steinar Midtskogen's avatar
      On x86 use _mm_set_epi32 when _mm_cvtsi64_si128 isn't available · b0748238
      Steinar Midtskogen authored
      Change-Id: Ibdbd720d4f68892da6164a9849e212e759305005
      b0748238
    • Yi Luo's avatar
      Hybrid forward transform 32x32 AVX2 optimization · fed8e1c0
      Yi Luo authored
      - av1_fht32x32 AVX2 function level time reduction ~89% compared to C.
      
      - av1_fht32x32_avx2() on DCT_DCT improves 42.62% over aom_fdct32x32_avx2()
        But function replacement must go with the corresponding inverse txfm.
      
      - No obvious user level time reduction due to 32x32 TX_TYPE selection.
      
      - Zero high 128b YMM to avoid AVX-SSE transition penalties
        (fix 16x16 case).
      
      - Added 32x32 AVX2 unit tests to verify bitexact.
      
      - AVX2 optimization summary:
        On CPU i7-6700, based on 16x16/32x32 fwd txfm optimization results:
        C to AVX2: function level time reduction, ~86-89%.
        SSE2 to AVX2: function level time reduction, ~51%.
      
      Change-Id: Idd0cd8bf066a61c7117140ef15ab6c1f8eb4b036
      fed8e1c0
    • Yaowu Xu's avatar
      minor updates · f36d0b46
      Yaowu Xu authored
      1. vp8->aom
      2. removed no-effect statements and spaces
      
      Change-Id: I367d05ff9bf1b9f3c71c517c45d8049d9d4236ec
      f36d0b46