1. 14 Jan, 2013 2 commits
    • Adrian Grange's avatar
      Merge prediction filter · 7bcaac3e
      Adrian Grange authored
      Removed the experimental flag from around the prediction filter.
      
      Change-Id: Ic1dd2db8fe8ac17ed5129f83094d4c5cdd5527d2
      7bcaac3e
    • John Koleszar's avatar
      Fix unused variable warnings · 76ac5b39
      John Koleszar authored
      Previous commit does not build cleanly on Jenkins with the DWT/DCT
      hybrid experiment enabled (--enable-dwtdcthybrid).
      
      Change-Id: Ia67e8f59d17ef2d5200ec6b90dfe6711ed6835a5
      76ac5b39
  2. 13 Jan, 2013 1 commit
    • Deb Mukherjee's avatar
      Further enhancements/fixes on dct/dwt hybrid txfm · 516db21c
      Deb Mukherjee authored
      Fixes some scaling issues. Adds an option to only compute the
      dct on the low-low subband for 32x32 and 64x64 blocks using
      only a single 16x16 dct after 1 and 2 wavelet decomposition
      levels respectively. Also adds an option to use a 8x8 dct
      as building block.
      
      Currenlty with the 2/6 filter and with a single 16x16 dct on
      the low low band, the reuslts compared to full 32x32 dct is
      as follows:
      derf: -0.15%
      yt: -0.29%
      std-hd: -0.18%
      hd: -0.6%
      These are my current recommended settings, since the 2/6 filter
      is very simple.
      
      Results with 8x8 dct are about 0.3% worse.
      
      Change-Id: I00100cdc96e32deced591985785ef0d06f325e44
      516db21c
  3. 12 Jan, 2013 5 commits
  4. 11 Jan, 2013 7 commits
  5. 10 Jan, 2013 5 commits
  6. 09 Jan, 2013 1 commit
    • Adrian Grange's avatar
      New prediction filter · 7d6b5425
      Adrian Grange authored
      This patch removes the old pred-filter experiment and replaces it
      with one that is implemented using the switchable filter framework.
      
      If the pred-filter experiment is enabled, three interopolation
      filters are tested during mode selection; the standard 8-tap
      interpolation filter, a sharp 8-tap filter and a (new) 8-tap
      smoothing filter.
      
      The 6-tap filter code has been preserved for now and if the
      enable-6tap experiment is enabled (in addition to the pred-filter
      experiment) the original 6-tap filter replaces the new 8-tap smooth
      filter in the switchable mode.
      
      The new experiment applies the prediction filter in cases of a
      fractional-pel motion vector. Future patches will apply the filter
      where the mv is pel-aligned and also to intra predicted blocks.
      
      Change-Id: I08e8cba978f2bbf3019f8413f376b8e2cd85eba4
      7d6b5425
  7. 08 Jan, 2013 9 commits
  8. 07 Jan, 2013 3 commits
  9. 06 Jan, 2013 1 commit
  10. 04 Jan, 2013 3 commits
    • Adrian Grange's avatar
      Fix mode selection infinite loop bug · 81d1171f
      Adrian Grange authored
      Mode selection for SBs could enter an infinite loop because
      the interpolation filter mode index was not being reset
      correctly.
      
      Change-Id: I4bbe726f29ef5b6836e94884067c46084713cc11
      81d1171f
    • Paul Wilkins's avatar
      Further change to mv reference search. · c6ba3a3d
      Paul Wilkins authored
      This experimental change reorders the search so
      that all possible references that match the target
      reference frame are tested first and these in order
      of distance from the current block. These will usually
      be the highest scoring candidates.
      
      If we do not find enough good candidates this way
      we try non matching cases. These will usually be lower
      scoring candidates.
      
      The change in order together with breakouts when
      we have found enough candidates should reduce
      the computational cost and especially reduce the number
      of sort operations.
      
      Quality Results:
      Std Hd +0.228%, Hd +0.074%, YT +0.046%, derf +0.137%
      
      This effect is probably due to the fact that more distant
      weak candidates are now less likely to get "promoted" over
      near candidates even if they are repeated.
      
      Change-Id: Iec37e77d88a48ad0ee1f315b14327a95d63f81f6
      c6ba3a3d
    • Marco Paniconi's avatar
      Use seg/ref/mode offsets in loop_filter_partial. · bdca030c
      Marco Paniconi authored
      Use the proper seg/mode/ref filter offsets when selecting the
      frame loop filter level for fast mode (pick_filter_level_fast).
      
      Change-Id: I2473e2131c800ad19755cb6211ad735fecfe2ac0
      bdca030c
  11. 03 Jan, 2013 3 commits