1. 09 Aug, 2016 1 commit
    • Urvang Joshi's avatar
      Fix warnings reported by -Wshadow: Part6: main directory · b96cbc44
      Urvang Joshi authored
      Now that all warnings are taken care of, add warning flag -Wshadow to
      Note: Enabling this flag for C++ generates some useless warnings about
      some function parameters shadowing class member function names. So, only
      enabling this warning for C code.
      Change-Id: I53ffb763483fec675a3358c5e64a737a03b93eb1
  2. 08 Aug, 2016 1 commit
  3. 04 Aug, 2016 1 commit
    • Brennan Shacklett's avatar
      Temporary fix for 4X8 block intra prediction. · f975ac57
      Brennan Shacklett authored
      Currently the RD loop traverses 4X8 blocks in inverted N order while
      the bitstream stores blocks smaller than 8x8 in Z order. This causes a
      discrepancy where the RD loop reads uninitialized data while
      performing intra prediction.  As a temporary fix simply disable the
      use of the extended right edge for 4X8 blocks, until the bitstream can
      be changed to match the logical structure of the blocks.
      Change-Id: I44a9e4fc1a15cd551a7b38c3c1227bc5dac77e9a
  4. 02 Aug, 2016 2 commits
  5. 01 Aug, 2016 3 commits
    • Yue Chen's avatar
      Add weighted motion search for obmc predictor · 72d3ba8a
      Yue Chen authored
      Also port SIMD optimization of weighted sad/variance functions to
      Coding gain improvement: 0.339/0.413/0.328 (lowres/midres/hdres)
      Current coding gain: 2.437/2.428/2.294
      Encoding time overhead: 17% (soccer_cif), 30% (ped_1080p25), was
      12% and 18% without motion search
      Change-Id: I101d6ce729f769853756edc8ced6f3a2b8d8f824
    • Brennan Shacklett's avatar
      Fix misc clang-format errors · dd8b9140
      Brennan Shacklett authored
      Change-Id: I84ff252eb813ce935ad6e17162f4f6fab701dcc7
    • Jingning Han's avatar
      Prevent potential token buffer overflow in format 444 · bb46b311
      Jingning Han authored
      For a 16x16 pixel block, one needs to allocate 16x16 coefficient
      tokens, plus up to 16 eob tokens, per plane. This commit increases
      the token allocation size to cover the case where all the transform
      blocks are of size 4x4 in format 444.
      Change-Id: I5755e6a53771053d51163d01ec1d62e670c5009e
  6. 29 Jul, 2016 5 commits
  7. 28 Jul, 2016 3 commits
    • Nathan E. Egge's avatar
      Update partition_cdf per frame. · de89c69d
      Nathan E. Egge authored
      Move computing the partition_cdf tables per symbol to
       computing them only when the probabilities are updated.
      Change-Id: I442f9230ba00be7f5d0558d7c38d7324ad009ee8
    • Nathan E. Egge's avatar
      Update inter_ext_tx_cdf per frame. · 73845731
      Nathan E. Egge authored
      Move computing the inter_ext_tx_cdf tables per symbol to
       computing them only when the probabilities are updated.
      Change-Id: I5e1e62f8eae8f6b2edbbd378beeb786649502c10
    • Nathan E. Egge's avatar
      Update intra_ext_tx_cdf per frame. · 785e975a
      Nathan E. Egge authored
      Move computing the intra_ext_tx_cdf tables per symbol to
       computing them only when the probabilities are updated.
      Change-Id: I26d5e419e103093e98a7d896c196176305b50fc9
  8. 27 Jul, 2016 3 commits
    • Jingning Han's avatar
      Change enum names of frame context index · c5d255df
      Jingning Han authored
      Change-Id: Iae2366380a8c24e4cde79b6a699b4073b4b7d488
    • hui su's avatar
      ext-intra: squeeze the derivative table · c0386e86
      hui su authored
      Reduce its size from 270x2 to 90.
      Change-Id: Ib6ea59344d7df4cefd2631aa73a1d5e599c212cc
    • Jingning Han's avatar
      Separate frame context index for different frame types · 7c1c078d
      Jingning Han authored
      This commit makes the encoder to use different frame context index
      for different frame types. In the baseline setting, it sets the
      frame context index of the overlay frame to be different from other
      regular inter frames. In the ext-refs setting, it further allows
      the backward reference frame to use a different index.
      It improves the compression performance for both settings.
      lowres  0.1%
      midres  0.15%
      lowres  0.42%
      midres  0.35%
      Change-Id: Ie033fcc16af20dace9a70386dc35dad6c5744f09
  9. 26 Jul, 2016 1 commit
    • Yue Chen's avatar
      Port SIMD optimization for obmc blending functions to av1 · 2478bed5
      Yue Chen authored
      SIMD optimization for 1d blending functions in obmc mode, and some
      code refactoring and cleanup.
      (ped_1080p25.y4m, 150 frame, 2000 tb)
      Encoding time overhead: +18.8% -> +18.1%
      Decoding time overhead: +21.3% -> +8.7%
      Change-Id: I9d856c32136e7e0e6e24ab5520ef901d7b1ee9c8
  10. 25 Jul, 2016 2 commits
  11. 22 Jul, 2016 1 commit
  12. 20 Jul, 2016 3 commits
  13. 19 Jul, 2016 1 commit
    • Nathan E. Egge's avatar
      Add code to compute in-order mappings for tokens. · 4531b85a
      Nathan E. Egge authored
      Add av1_indices_from_tree() function that computes a forward and inverse
       mapping of the tree leaf-node symbols to their in-order traversal.
      This is necessary because many of the aom_tree binary trees have their
       leaf nodes out of order (e.g., an in-order traversal of a tree with n
       nodes does not start at symbol 0 and go to symbol n - 1), but the CDFs
       created by tree_to_cdf() are indexed in-order.
      Change-Id: Icd0dbed4c171a67c9e84a634106c4fdb5b1b3488
  14. 18 Jul, 2016 7 commits
  15. 16 Jul, 2016 1 commit
  16. 15 Jul, 2016 3 commits
  17. 14 Jul, 2016 1 commit
    • Zoe Liu's avatar
      Add the use of new reference frames at encoder in EXT_REFS · 9c1e2f92
      Zoe Liu authored
      In the experiment of EXT_REFS, add the use of the 3 extra reference
      frames, including the 2 forward reference frames LAST2 and LAST3, and
      the one backward reference frame BWDREF, for the encoding.
      For lowres, EXT_REFS achieves following bitrate saving on overall PSNR
      compared against baseline:
      Avg: -4.581  BDRate: -4.358
      Change-Id: Ib15b65681c39892ddfce5e4107598c0a22317ccd
  18. 13 Jul, 2016 1 commit