1. 24 Jan, 2018 7 commits
    • Imdad Sardharwalla's avatar
      Added SSE4.1 and AVX2 implementations of FAST SGR. · 9d234571
      Imdad Sardharwalla authored
      The self-guided filter speed tests show that:
      - The SSE4.1 implementation of FAST SGR is ~35% faster than the corresponding
        implementation of SGR;
      - The AVX2 implementation of FAST SGR is ~28% faster than the corresponding
        implementation of SGR.
      Change-Id: Iecdc1f8cee79500084c71d06dbb02d804272aa99
    • Debargha Mukherjee's avatar
      Add a config flag/code for fast sgr computation · ed5e9673
      Debargha Mukherjee authored
      Adds an experiment for fast sgr computation where for the r=2
      filter, computation of the A, B stats are computed for every
      other row and averaged in between.
      The motivation is to improve software performance with hopefully
      minimal loss.
      Change-Id: Ie36687826524dc18c1fbb7f6becff244187bf8da
    • David Barker's avatar
      [loop-restoration, bugfix] Restrict sampling of deblocked pixels · dff901ff
      David Barker authored
      There is a special case with certain frame heights, where we
      end up with a loop restoration stripe which ends 1px above the
      crop border.
      Previously this case was handled in quite an ugly way, which also
      disagrees with the spec (+ isn't great for hardware). This patch
      changes things to match the spec.
      Specifically, the old method was to sometimes upscale one extra
      row of deblocked pixels so that we could always have a 2px
      "below" border for each processing stripe. The new method is to
      only use rows inside the crop border, and to duplicate them if
      Change-Id: Idf8ab510e1091dc3f5b257de60e16bca214d8dc4
    • Angie Chiang's avatar
      Simplify cos_bit setting in txfm · d4327bce
      Angie Chiang authored
      Move cos_bit from txfm 1d cfg to 2d cfg
      Each txfm stage only uses one cos_bit
      This is a lossless change and it speeds up encoder by 2%
      Change-Id: I45d398761e4729b8c4c37729571fe3765cb0c83f
    • Frederic Barbier's avatar
      Cleanup redundant assertion · dc3d916b
      Frederic Barbier authored
      Change-Id: I6532e20c958d5bf6f6d73a6f076664e1b74ba055
    • Yushin Cho's avatar
      Add AVX2 implementation for motion compensation function · 54cd8d76
      Yushin Cho authored
      AVX2 Code for av1_convolve_2d_sr_c()
      Change-Id: Id8a2192b78bbb2c6ac22da3134a7c256941985c8
    • Johann's avatar
      adopt some clang 5.0.0 formatting · 123e8a60
      Johann authored
      At least the changes that don't conflict with 4.0.1
      Change-Id: Iaa2fda027b8ab2b023d608cf5ec7b377a72b851e
  2. 23 Jan, 2018 14 commits
    • Yaowu Xu's avatar
      Remove Frame_ID_NUMBERS_PRESENT_FLAG · 6eb9da2c
      Yaowu Xu authored
      This commit replaces hard coded FRAME_ID_NUMBERS_PRESENT_FLAG with
      error_resilient_mode, which properly reflects the intention of the
      experiment, i.e. "signal the complete state of the reference buffer
      explicitly for each frame" to deal with possible frame losses.
      Change-Id: I7130c110d26c6a8e1cf1266c05482b768cf352f9
    • Tom Finegan's avatar
      Revert "add scalability experiment" · 8695e987
      Tom Finegan authored
      This reverts commit 2eeadab1.
      Reason for revert: Did not address final review comments before landing.
      Change-Id: I29089767857bd20b3a3e42322e3887fb7027559d
    • Soo-Chul Han's avatar
      add scalability experiment · 2eeadab1
      Soo-Chul Han authored
      configure:  --enable-experimental --enable-scalability
      New applications:  scalable_encoder, scalable_decoder
        * Encodes inputs as 2-layer (same size) stream
        * Encodes as obu file (OBU_NO_IVF must be enabled)
        * Base layer encoded in IPPPP where P's reference
          only the previous (in time) base layer
        * Enhancement layer encoded using its base layer as
          sole reference frame
        * Base layer encoded with fixed high QP
        * Enhancement layer encoded with fixed low QP
        * Able to decode scalable stream generated by
        * Able to decode any single-layer stream encoded
          by aomenc
        * Outputs base layer as out_lyr0.yuv, and enhancement
          layer (if they exist) as out_lyrN.yuv (N = 1, 2, 3, ..)
        * Able to decode N layers (more than 2)
      Change-Id: I8555735db71e5b9b6f900ffdf978e0ad6f6bfc00
    • Frederic Barbier's avatar
      Move encoder-specific function out of decoder · 57ddc51a
      Frederic Barbier authored
      Change-Id: I5ae45abe5145dedf9751adbeb81a111a49df7eb5
    • Angie Chiang's avatar
      Let adst4's precision be adjustable · 8251736b
      Angie Chiang authored
      Change-Id: I6e251328b2934130992dbd355cfdffc3c721d357
    • Angie Chiang's avatar
      Tune the inv_shift · 06250276
      Angie Chiang authored
      Let the second stage of 10 bit inv txfms fit within 16 bits
      Change-Id: Ia087d65484cd410651190dcd9d3292cce6594d34
    • Angie Chiang's avatar
      Correct inv_start_range · a8b45c37
      Angie Chiang authored
      Change-Id: I08e4686b0bcf19a3c318a831bc338c9e58f3a127
    • Angie Chiang's avatar
      Move InvSqrt2 to the front of inv_txfm2d_add_c · 4b29ea86
      Angie Chiang authored
      This will simplify the range management of rect txfm
      Change-Id: Icf678fe735dd299c6c42a215c592611025e87ba6
    • Hui Su's avatar
      Remove more code about probability based entropy coding · 9fdf2e2e
      Hui Su authored
      Change-Id: Ie0bc1dd68f7a5d81e49da0ae6f855e572e12aa10
    • Cheng Chen's avatar
      Fix a bug in jnt_comp · 5b5f3d50
      Cheng Chen authored
      (1). index may go out side of range
      (2). when d0 <= d1, comparison is invalid.
      Performance impact on Google lowres testset:
      Turn on jnt_comp vs baseline,
      Without fix: -0.211% gain
      With fix: -0.357% gain
      Change-Id: I761522bba8396bba0d4108d710030b472939cf32
    • Imdad Sardharwalla's avatar
      Don't calculate chroma data in monochrome mode · af8e2648
      Imdad Sardharwalla authored
      Encoder: Prior to this patch, some chroma data was calculated and
      later discarded when in monochrome mode. This patch ensures that
      the chroma planes are left uninitialised and that chroma
      calculations are not performed.
      Decoder: Prior to this patch, some chroma calculations were still
      being performed in monochrome mode (e.g. loop filtering). This
      patch ensures that calculations are only performed on the y
      plane, with the chroma planes being set to a constant.
      Change-Id: I394c0c9fc50f884e76a65e6131bd6598b8b21b10
    • Frank Bossen's avatar
      Add SSE2 implementation of 1-D convolve functions · ffa57594
      Frank Bossen authored
      Can reduce decoder runtime by about 7 percent.
      Change-Id: I4ee3eea9de867d065d03a176f242e286a4899004
    • Hui Su's avatar
      Remove the dct_only experiment · 7448fc24
      Hui Su authored
      Change-Id: I33bb6e902e3be2847ae8101199d9cbd0e1e5c38d
    • Soo-Chul Han's avatar
      [segment_pred_last] fix resolution change issues · 85e8c797
      Soo-Chul Han authored
      explicitly disable segmentation when ref frame has different
      Change-Id: I6db51116db308514d572eb465c2453403e64e1f2
  3. 22 Jan, 2018 5 commits
  4. 20 Jan, 2018 1 commit
  5. 19 Jan, 2018 5 commits
  6. 18 Jan, 2018 5 commits
  7. 17 Jan, 2018 3 commits
    • Linfeng Zhang's avatar
      Update convolve_sse2.c · 6f84e12d
      Linfeng Zhang authored
      to process width 4 case separately
      Change-Id: I18f5e026927c4d3d705586e9e0f8a6315931951c
    • Imdad Sardharwalla's avatar
      Optimise self-guided restoration SIMD functions · f32dabd2
      Imdad Sardharwalla authored
      Improvements have been made to calc_ab for both the
      SSE4.1 and AVX2 versions of the self-guided filter.
      These result in an increase in the speed of between
      3% and 5% depending on the bit depth.
      Change-Id: I83a12ba452fcbb61cce5066801ae213e23c609cd
    • Imdad Sardharwalla's avatar
      SIMD implementation of horz superres · 454697ca
      Imdad Sardharwalla authored
      SSE4.1 implementations of av1_convolve_horiz_rs and
      av1_highbd_convolve_horiz_rs have been added, along
      with the corresponding speed and correctness tests.
      The interp_taps argument was defunct and has now been
      removed and replaced with the UPSCALE_NORMATIVE_TAPS
      Code associated with values of UPSCALE_NORMATIVE_TAPS
      that are no longer used has been removed.
      Change-Id: Ie74d8ca479a70c8d473ac12883cfe4f10b37a66d