1. 24 Oct, 2016 1 commit
  2. 21 Oct, 2016 1 commit
    • Angie Chiang's avatar
      Pass AV1_COMMON into get_scan · ff6d8905
      Angie Chiang authored
      This CL will facilitate adapt_scan experiment.
      In adapt_scan experiment, dynamic scan order will be stored in
      Change-Id: I4763ea931b5e1af54d4f173971befeb01a4db335
  3. 19 Oct, 2016 2 commits
  4. 02 Oct, 2016 1 commit
    • Debargha Mukherjee's avatar
      Further changes to new-quant tables · 3c42c096
      Debargha Mukherjee authored
      Refactor to streamline the number of profiles needed, in
      preparation for the next steps.
      NO change in performance.
      Change-Id: I753b89299897857f3c250c316b4cdc4fedcb90e8
  5. 28 Sep, 2016 1 commit
  6. 15 Sep, 2016 1 commit
  7. 06 Sep, 2016 1 commit
    • Yue Chen's avatar
      Make RECT_TX(>=8x8) work with VAR_TX · a1e48dcc
      Yue Chen authored
      Bitstream syntax:
      For a rectangular inter block, 'rect_tx' flag is sent to indicate if
      the biggest rect tx is used. If no, continue to decode regular
      recursive tx partition.
      Change-Id: I127e35cc619b65acb5e9a0717f399cdcdb73fbf0
  8. 05 Sep, 2016 1 commit
    • Debargha Mukherjee's avatar
      Enable rectangular transforms for UV · 2f12340f
      Debargha Mukherjee authored
      Uses an array to map block sizes, y tx sizes, and subsampling
      factors to various transform sizes for UV.
      Results improve by 0.1-0.2%
      Change-Id: Icb58fd96bc7c01a72cbf1332fe2be4d55a0feedc
  9. 02 Sep, 2016 1 commit
  10. 01 Sep, 2016 2 commits
  11. 23 Aug, 2016 1 commit
  12. 22 Aug, 2016 1 commit
  13. 16 Aug, 2016 1 commit
    • Yaowu Xu's avatar
      Port commits related to clpf and qm experiments · 0818a7c8
      Yaowu Xu authored
      Manually cherry-picked following commits from AOMedia git repository:
      bb2727c2 Sort includess for "clpf.h"
      c297fd00 Add quantisation matrix range parameters.
      0527894f Add encoder option and signaling for quant matrix control.
      4106232b Turn off trellis coding for quantization matrices.
      4017fca3 Modify tests to allow quantization matrices.
      1c122c24 Add quant and dequant functions for new quant matrices.
      95a89994 Enable CLPF
      f72782bb Fix a build issue
      73bae509 Add quantisation matrices and selection functions
      33208d20 Added support for constrained low pass filter (CLPF)
      Change-Id: I60fc1ee1ac40e6b9d1d00affd97547ee5d5dd6be
  14. 12 Aug, 2016 2 commits
  15. 11 Aug, 2016 1 commit
  16. 21 Jul, 2016 1 commit
    • Debargha Mukherjee's avatar
      Rectangular transforms 4x8 & 8x4 · e5848dea
      Debargha Mukherjee authored
      Added a new expt rect-tx to be used in conjunction with ext-tx.
      [rect-tx is a temporary config flag and will eventually be
      merged into ext-tx once it works correctly with all other
      Added 4x8 and 8x4 tranforms for use initially with rectangular
      sub8x8 y blocks as part of this experiment.
      There is about a -0.2% BDRATE improvement on lowres, others pending.
      When var-tx is on rectangular transforms are currently not used.
      That will be enabled in a subsequent patch.
      Change-Id: Iaf3f88ede2740ffe6a0ffb1ef5fc01a16cd0283a
  17. 18 Jul, 2016 1 commit
  18. 14 Jul, 2016 1 commit
  19. 08 Jul, 2016 1 commit
    • Geza Lore's avatar
      Add a few branch hints to vp10_optimize_b. · 0b9b3d86
      Geza Lore authored
      vp10_optimize_b now takes between 40% to 60% of the TOTAL runtime
      of the encoder, depending on bit-rate. It also contains 2/3 to 3/4
      of the mispredicted branch instructions in the whole program.
      Adding a few branch hints makes vp10_optimize_b around 2-5% faster
      (dependig on bit-rate) when compiled with gcc/clang.
      Change-Id: I1572733e18b4166bc10591b958c5018a9561fa2b
  20. 07 Jul, 2016 2 commits
  21. 29 Jun, 2016 1 commit
  22. 28 Jun, 2016 2 commits
    • Geza Lore's avatar
      Remove skip_txfm optimization. · 92922be8
      Geza Lore authored
      Commit 0d6980d7 removed some use
      of the skip_txfm optimization, and the rest are not productive.
      The current use of this optimization is only used with --good
      and --cpu-used >= 3, however the overhead of this is higher than the
      speedup it yields.
      Removing this, and subsequently simplifying model_rd_for_sb yields
      a net encoder speedup:
      --cpu-used=0    ~1.5% faster
      --cpu-used=3    ~2.0% faster
      The code simplification is also significant.
      Change-Id: I1dd668c32de15a2e912c59c42379d0f9e1032ff8
    • Debargha Mukherjee's avatar
      Quantization fix for new-quant/var-tx · f3dfa0c3
      Debargha Mukherjee authored
      Also use the fp quantizer consistently
      lowres: -0.07 BDRATE improvement
      Change-Id: I9174f6ad54a74d38541004b99cb3689d0c09be55
  23. 27 Jun, 2016 1 commit
  24. 24 Jun, 2016 1 commit
  25. 23 Jun, 2016 1 commit
  26. 22 Jun, 2016 1 commit
  27. 21 Jun, 2016 2 commits
  28. 20 Jun, 2016 1 commit
    • Jingning Han's avatar
      Handle two identical states in the trellis chain · 5223a4b4
      Jingning Han authored
      When the next two states are identical, skip repeated cost table
      fetch and multiplication operations. This makes the trellis unit
      about 5% faster.
      Change-Id: I0dbf7ad0a5732044e4e45dd59e9431a251c678f2
  29. 17 Jun, 2016 2 commits
  30. 16 Jun, 2016 2 commits
  31. 15 Jun, 2016 1 commit
    • Jingning Han's avatar
      Refactor trellis optimization process · e9c44a76
      Jingning Han authored
      This commit refactors the trellis coefficient optimization process.
      It saves multiplications used to generate the final dequantized
      coefficients. It also removes two memset operations on quantized
      and dequantized coefficient sets.
      The trellis coefficient optimization is on average running over
      10% faster.
      Change-Id: If3aa26d2a706c3012bf2b7ac059bf1825250e81f
  32. 14 Jun, 2016 1 commit
    • Jingning Han's avatar
      Rework transform quantization pipeline · 1faf2887
      Jingning Han authored
      This commit reworks the transform and quantization unit. It enables
      the use of adaptive quantization for intra modes. This further
      improves the compression performance:
      lowres 0.36%
      midres 0.79%
      hdres  0.73%
      The key frame coding performance is improved:
      lowres 1.7%
      midres 1.9%
      hdres  3.3%
      The overall coding gains are:
      lowres 1.1%
      midres 1.8%
      hdres  2.3%
      Change-Id: Iaec1a3a4c1d5eac883ab526ed076d957060479dd