1. 15 May, 2017 1 commit
    • Ralph Giles's avatar
      Remove armv6 media-extension assembly. · be111b38
      Ralph Giles authored
      Libvpx dropped armv6 support sometime after the aom fork.
      
      We don't intend to support this platform, which is likely
      too slow in any case. Remove the assembly and intrinsics
      optimized routines, their tests, cpu feature detection,
      and rtcd specialization for this instruction set extension.
      
      Change-Id: If44ec28e5ddafc6af179c5d1982ac7e81fe54d5e
      be111b38
  2. 11 May, 2017 1 commit
    • Yi Luo's avatar
      Partial IDCT 32x32 avx2 · 40f22ef8
      Yi Luo authored
      - Function level improvement (ms):
      Functions       ssse3  avx2   Percentage
      idct32x32_1024  794    374    52.9%
      idct32x32_135   354    169    52.2%
      idct32x32_34    197    142    27.9%
      idct32x32_1     n/a     26    n/a
      
      - Integrating in default scan order.
      
      Change-Id: I84815112b26b8a8cb800281a1cfb1706342af57d
      40f22ef8
  3. 08 May, 2017 2 commits
    • Yi Luo's avatar
      Partial IDCT 16x16 avx2 · f6176abb
      Yi Luo authored
      - Function level improvement:
      functions      sse2  avx2  percentage
      idct16x16_256  365   226   38%
      idct16x16_38   n/a   136   n/a
      idct16x16_10   171   110   35%
      idct16x16_1     34    26   23%
      
      - Integrated in AV1 for default scan order.
      
      Change-Id: Ieb1a8e730bea9c371ebc0e5f4a748640d8f5e921
      f6176abb
    • Urvang Joshi's avatar
      Add a new experiment SMOOTH_HV. · e6ca8e83
      Urvang Joshi authored
      This experiment extends ALT_INTRA by adding two new modes:
      smooth horizontal and smooth vertical.
      
      Improvement on *intra frames* in BDRate (PSNR):
      ===============================================
      
      AWCY (high latency): -0.46%
      (Also, -1.0% or more on PSNR Cb,Cr and APSNR Cb,Cr).
      
      AWCY (low latency): -0.43%
      (Also, -0.88% to -0.94% on PSNR Cb,Cr and APSNR Cb,Cr).
      
      Google sets:
      lowres: -0.454
      midres: -0.484
      hdres:  -0.525
      
      Improvement on *video overall* in BDRate (PSNR):
      ================================================
      
      AWCY (high latency): -0.15%
      
      Google sets:
      lowres: -0.085
      midres: -0.079
      
      Change-Id: I9f4e7c1b8ded1fe244c72838f336103ccc715d50
      e6ca8e83
  4. 27 Apr, 2017 1 commit
    • Frederic Barbier's avatar
      Cleanup dead high-bitdepth inverse-tx functions · 4fc8df67
      Frederic Barbier authored
      This patch removes dead code and prevents future implementations
      to rely on obsolete transforms. Future optimizations and tests should
      be based on latest C-functions (av1/common/av1_inv_txfm1d.c)
      
      Cleanup related last unit-test callers.
      BUG=aomedia:442
      
      Change-Id: I24953cc1baf30dd7b720df8a72dd91b356b74cad
      4fc8df67
  5. 26 Apr, 2017 1 commit
    • Yi Luo's avatar
      Update partial inverse DCT according to VP9 · 3fcb356e
      Yi Luo authored
      - Partial inverse DCT unit tests have been enhanced.
      - IDCT x86_64 assembly code has been removed.
      
      Change-Id: Ic3bed2c0e70abdfd642a4f74fa969cc672d4795f
      3fcb356e
  6. 25 Apr, 2017 2 commits
    • James Zern's avatar
      remove remaining refs to aom_highbd_idct8x8_64_add · 4a2e3b2d
      James Zern authored
      fixes high-bitdepth build:
      ./libaom.a(aom_dsp_rtcd.c.o): In function `setup_rtcd_internal':
        ./aom_dsp_rtcd.h:2614: undefined reference to
        `aom_highbd_idct8x8_64_add_c'
      
      missed in:
      c756e4d0 Cleanup dead high-bitdepth inverse-tx functions
      
      BUG=aomedia:442
      
      Change-Id: I63ee6fc5dbf85fd48efd9ff721868df6fb05eb09
      4a2e3b2d
    • Urvang Joshi's avatar
      Intra prediction: Remove unused variants. · c3bcf3be
      Urvang Joshi authored
      Directional predictors for 45, 63 and 207 angle had 2 or 3 variants
      each, and only one of them was actually being used. So, removed the
      C, sse2, ssse3 and neon versions of the unused ones.
      
      Updates to the test:
      - test_intra_pred_speed was testing the unused versions, so changed
        it to use the version actually used by code. This meant updating
        some golden MD5 values.
      - test_intra_pred_speed was NOT filling up bottom-left and top-right
        pixels randomly, so the predictors using these pixels weren't tested
        properly. This was fixed.
      
      BUG=aomedia:442
      
      Change-Id: I09725d593408b81e0cd636e70a88c28eea5f2222
      c3bcf3be
  7. 24 Apr, 2017 1 commit
  8. 20 Apr, 2017 1 commit
    • Sebastien Alaiwan's avatar
      Drop support for CONFIG_EMULATE_HARDWARE · c6a48a25
      Sebastien Alaiwan authored
      This experiment complexifies DSP function dispatch, without bringing
      any real value (it's non-normative arbitrary behaviour).
      Moreover, it only has an effect on obsolete transforms, the new ones
      don't implement this mechanism.
      
      Change-Id: Idaccdd0c14ed6b7008cd4f365c7f017ba8ccacf5
      c6a48a25
  9. 12 Apr, 2017 1 commit
  10. 03 Apr, 2017 1 commit
  11. 31 Mar, 2017 1 commit
    • Urvang Joshi's avatar
      RTCD defs: Remove empty specialize statements once and for all. · 5ddac0aa
      Urvang Joshi authored
      A similar cleanup happened before, but the empty statements have since
      reappeared. I added a check in 'specialize' subroutine to die whenever
      such an empty specialize call is found, so that config+make would fail.
      
      Change-Id: I300ca0f0b077c0aeca8096d6460d8fb1c364d9b9
      5ddac0aa
  12. 30 Mar, 2017 2 commits
  13. 29 Mar, 2017 2 commits
  14. 23 Mar, 2017 1 commit
    • Jean-Marc Valin's avatar
      Do real chroma RDO search for CDEF · e9f77424
      Jean-Marc Valin authored
      Chroma now has a list of strenghts too, with the superblock signalling
      shared between luma and chroma.
      
      low-latency, cpu=4:
      
         PSNR | PSNR Cb | PSNR Cr | PSNR HVS |   SSIM | MS SSIM | CIEDE 2000
      -0.0114 | -1.4626 | -1.4745 |  -0.0423 | 0.0430 | -0.0001 |    -0.7416
      
      Change-Id: I389c77f1d80020f810e45f8502c656ad9d397c8c
      e9f77424
  15. 21 Mar, 2017 2 commits
  16. 17 Mar, 2017 1 commit
    • Steinar Midtskogen's avatar
      Merge dering/clpf rdo and filtering · a9d41e88
      Steinar Midtskogen authored
      * Dering and clpf were merged into a single pass.
      * 32x32 and 128x128 filter block sizes for clpf were removed.
      * RDO for dering and clpf merged and improved:
        - "0" no longer required to be in the strength selection
        - Dering strength can now be 0, 1 or 2 bits per block
      
                    LL    HL
      PSNR:       -0.04 -0.01
      PSNR HVS:   -0.27 -0.18
      SSIM:       -0.15 +0.01
      CIEDE 2000: -0.11 -0.03
      APSNR:      -0.03 -0.00
      MS SSIM:    -0.18 -0.11
      
      Change-Id: I9f002a16ad218eab6007f90f1f176232443495f0
      a9d41e88
  17. 27 Feb, 2017 1 commit
  18. 18 Feb, 2017 1 commit
  19. 10 Feb, 2017 1 commit
    • Steinar Midtskogen's avatar
      Retune the CLPF kernel · 4f0b3ed8
      Steinar Midtskogen authored
      CLPF performance had degraded by about 0.5% over the past six months,
      which isn't totally surprising since the codec is a moving target.
      About half of that degradation comes from the improved 7 bit filter
      coefficients.  Therefore, CLPF needs to be retuned for the current
      codec.
      
      This patch makes two (normative) changes to the CLPF kernel:
      
      * The clipping function was changed from clamp(x, -s, s) to
            sign(x) * max(0, abs(x) - max(0, abs(x) - s +
                   (abs(x) >> (bitdepth - 3 - log2(s)))))
        This adds a rampdown to 0 at -32 and 32 (for 8 bit, -128 & 128
        for 10 bit, etc), so large differences are ignored.
      
      * 8 taps instead of 6 taps:
                     1
          4          3
        13 31  ->  13 31
          4          3
                     1
      
      AWCY results: low delay  high delay
      PSNR:           -0.40%     -0.47%
      PSNR HVS:        0.00%     -0.11%
      SSIM:           -0.31%     -0.39%
      CIEDE 2000:     -0.22%     -0.31%
      APSNR:          -0.40%     -0.48%
      MS SSIM:         0.01%     -0.12%
      
      About 3/4 of the gains come from the new clipping function.
      
      Change-Id: Idad9dc4004e71a9c7ec81ba62ebd12fb76fb044a
      4f0b3ed8
  20. 08 Feb, 2017 1 commit
  21. 27 Jan, 2017 1 commit
    • Johann's avatar
      highbitdepth + loop restoration: fix build on x86 32 bit · cda0b5e4
      Johann authored
      When the functions were added in
      https://aomedia-review.googlesource.com/6545 they were not restricted to
      x86_64 builds.
      
      Fixes "undefined reference to
      `aom_highbd_convolve8_add_src_sse2'" for --target=x86-linux-gcc
      
      Also remove SSE2 specializations from
      `aom_highbd_convolve8_add_src[_horiz/_vert]`, since those functions
      don't actually have SSE2 versions (this was left in by accident
      in the original patch).
      
      Change-Id: I9f7d0c11b58b6f5a0e6a1fdaed0f92175bdeab34
      cda0b5e4
  22. 24 Jan, 2017 1 commit
  23. 07 Jan, 2017 2 commits
  24. 03 Jan, 2017 1 commit
    • David Barker's avatar
      Add new convolve variant for loop-restoration · be6cc07d
      David Barker authored
      The convolve filters generated by loop_wiener_filter_tile
      are not compatible with some existing convolve implementations
      (they can have coefficients >128, sums of (certain subsets of)
      coefficients >128, etc.)
      
      So we implement a new variant, which takes a filter with 128
      subtracted from its central element and which adds an extra copy
      of the source just before clipping to a pixel (reinstating the
      128 we subtracted). This should be easy to adapt from the existing
      convolve functions, and this patch includes SSE2 highbd and
      SSSE3 lowbd implementations.
      
      Change-Id: I0abf4c2915f0665c49d88fe450dbc77b783f69e1
      be6cc07d
  25. 20 Dec, 2016 2 commits
  26. 15 Dec, 2016 1 commit
  27. 09 Dec, 2016 1 commit
    • Yi Luo's avatar
      High bit depth motion search SAD optimization on avx2 · e9832584
      Yi Luo authored
      - For all blocks with width >= 16.
      - Add test_count to make the unit tests harder to pass.
      - Speed testing on 1080p, 100 frames, 5 Mbps, CPU, i7-6700
        User level time reduction:
         baseline:                  3.68%
         baseline + ext-partition: 36.12%
      
      Change-Id: I78c5d9ca216f0fd91f1a360dca2190b11fd54a08
      e9832584
  28. 07 Dec, 2016 1 commit
  29. 02 Dec, 2016 1 commit
    • Jingning Han's avatar
      Enable 2x2 intra prediction · 7833d2bf
      Jingning Han authored
      Bring 2x2 intra prediction online for chroma components.
      
      Change-Id: Ia56af9101b2a977691bca4156a6dcf89e644b4a7
      7833d2bf
  30. 28 Nov, 2016 2 commits
    • Yi Luo's avatar
      SAD avg and 4D avx2 optimization for ext-partition · 9e218747
      Yi Luo authored
      - User level time reduction <1% on i7-6700 cpu
      
      Change-Id: I8f15bde07dddd938df0b065e20ae94109e7b3b5b
      9e218747
    • Urvang Joshi's avatar
      Add a new intra prediction mode "smooth". · 6be4a54b
      Urvang Joshi authored
      This is added as part of ALT_INTRA experiment.
      
      This uses interpolation between top row and estimated bottom row; as
      well as left column and estimated right column to generate the
      predicted block.The interpolation is done using a predefined weight
      array.
      
      Based on experiments, the currently chosen weight array was created
      to represent a quadratic curve, but can be tuned further if needed.
      
      Improvement from baseline on Derf set:
      ALL Keyframes: 1.279%
      
      Improvement from existing ALT_INTRA:
      ALL Keyframes: 1.146%
      
      Change-Id: I12637fa1b91bd836f1c59b27d6caee2004acbdd4
      6be4a54b
  31. 21 Nov, 2016 1 commit
  32. 10 Nov, 2016 1 commit