1. 30 Nov, 2012 1 commit
  2. 28 Nov, 2012 2 commits
  3. 27 Nov, 2012 1 commit
    • John Koleszar's avatar
      Add vp9_ prefix to all vp9 files · fcccbcbb
      John Koleszar authored
      Support for gyp which doesn't support multiple objects in the same
      static library having the same basename.
      
      Change-Id: Ib947eefbaf68f8b177a796d23f875ccdfa6bc9dc
      fcccbcbb
  4. 25 Nov, 2012 1 commit
  5. 08 Nov, 2012 1 commit
    • Ronald S. Bultje's avatar
      Implement tx_select for superblock encoding. · 1d4fbeb3
      Ronald S. Bultje authored
      Also split superblock handling code out of decode_macroblock() into
      a new function decode_superblock(), for easier readability.
      
      Derf +0.05%, HD +0.2%, STDHD +0.1%. We can likely get further gains
      by allowing to select mb_skip_coeff for a subset of the complete SB
      or something along those lines, because although this change allows
      coding smaller transforms for bigger predictors, it increases the
      overhead of coding EOBs to skip the parts where the residual is
      near-zero, and thus the overall gain is not as high as we'd expect.
      
      Change-Id: I552ce1286487267f504e3090b683e15515791efa
      1d4fbeb3
  6. 01 Nov, 2012 2 commits
  7. 31 Oct, 2012 1 commit
  8. 29 Oct, 2012 1 commit
  9. 15 Oct, 2012 1 commit
    • Ronald S. Bultje's avatar
      Remove duplicate or unused code in encoder/encodemb.c. · 238ed517
      Ronald S. Bultje authored
      Also make some minor stylistic changes to bring the code closer to
      the style guide. Remove distinction between inter and intra transform
      functions, since both do exactly the same thing except for the check
      against SPLITMV for the second-order transform. Remove some commented
      out debug code. Remove 8x8/16x16 transform code in encode_inter16x16y(),
      since the first-pass only uses 4x4 anyway.
      
      Change-Id: Ife54816ff759825b9141f95dc2ba43c253c14dba
      238ed517
  10. 14 Oct, 2012 1 commit
  11. 11 Oct, 2012 1 commit
  12. 30 Aug, 2012 1 commit
    • Jingning Han's avatar
      hybrid transform of 16x16 dimension · de6dfa6b
      Jingning Han authored
      Enable ADST/DCT of dimension 16x16 for I16X16 modes. This change provides
      benefits mostly for hd sequences.
      
      Set up the framework for selectable transform dimension.
      
      Also allowing quantization parameter threshold to control the use
      of hybrid transform (This is currently disabled by setting threshold
      always above the quantization parameter. Adaptive thresholding can
      be built upon this, which will further improve the coding performance.)
      
      The coding performance gains (with respect to the codec that has all
      other configuration settings turned on) are
      
      derf:   0.013
      yt:     0.086
      hd:     0.198
      std-hd: 0.501
      
      Change-Id: Ibb4263a61fc74e0b3c345f54d73e8c73552bf926
      de6dfa6b
  13. 21 Aug, 2012 1 commit
  14. 07 Aug, 2012 1 commit
  15. 03 Aug, 2012 1 commit
    • Daniel Kang's avatar
      16x16 DCT blocks. · fed8a183
      Daniel Kang authored
      Set on all 16x16 intra/inter modes
      
      Features:
      - Butterfly fDCT/iDCT
      - Loop filter does not filter internal edges with 16x16
      - Optimize coefficient function
      - Update coefficient probability function
      - RD
      - Entropy stats
      - 16x16 is a config option
      
      Have not tested with experiments.
      
      hd:     2.60%
      std-hd: 2.43%
      yt:     1.32%
      derf:   0.60%
      
      Change-Id: I96fb090517c30c5da84bad4fae602c3ec0c58b1c
      fed8a183
  16. 17 Jul, 2012 1 commit
  17. 27 Jun, 2012 1 commit
    • Adrian Grange's avatar
      Added Prediction Filter to Mode Selection · bbc926dc
      Adrian Grange authored
      Added the ability to optionally filter the prediction data
      when inter modes are selected (excludes SPLITMV, for now).
      
      The mode selection loop considers both the filtered and
      non-filtered prediction data when choosing mode. The filter
      can be turned on/off at the frame-level, or signaled for
      each MB.
      
      Change-Id: I1b783c71d95a361ab36c761b07e8a6b06bc36822
      bbc926dc
  18. 15 Mar, 2012 1 commit
    • Yaowu Xu's avatar
      WebM Experimental Codec Branch Snapshot · 6035da54
      Yaowu Xu authored
      This is a code snapshot of experimental work currently ongoing for a
      next-generation codec.
      
      The codebase has been cut down considerably from the libvpx baseline.
      For example, we are currently only supporting VBR 2-pass rate control
      and have removed most of the code relating to coding speed, threading,
      error resilience, partitions and various other features.  This is in
      part to make the codebase easier to work on and experiment with, but
      also because we want to have an open discussion about how the bitstream
      will be structured and partitioned and not have that conversation
      constrained by past work.
      
      Our basic working pattern has been to initially encapsulate experiments
      using configure options linked to #IF CONFIG_XXX statements in the
      code. Once experiments have matured and we are reasonably happy that
      they give benefit and can be merged without breaking other experiments,
      we remove the conditional compile statements and merge them in.
      
      Current changes include:
      * Temporal coding experiment for segments (though still only 4 max, it
        will likely be increased).
      * Segment feature experiment - to allow various bits of information to
        be coded at the segment level. Features tested so far include mode
        and reference frame information, limiting end of block offset and
        transform size, alongside Q and loop filter parameters, but this set
        is very fluid.
      * Support for 8x8 transform - 8x8 dct with 2nd order 2x2 haar is used
        in MBs using 16x16 prediction modes within inter frames.
      * Compound prediction (combination of signals from existing predictors
        to create a new predictor).
      * 8 tap interpolation filters and 1/8th pel motion vectors.
      * Loop filter modifications.
      * Various entropy modifications and changes to how entropy contexts and
        updates are handled.
      * Extended quantizer range matched to transform precision improvements.
      
      There are also ongoing further experiments that we hope to merge in the
      near future: For example, coding of motion and other aspects of the
      prediction signal to better support larger image formats, use of larger
      block sizes (e.g. 32x32 and up) and lossless non-transform based coding
      options (especially for key frames). It is our hope that we will be
      able to make regular updates and we will warmly welcome community
      contributions.
      
      Please be warned that, at this stage, the codebase is currently slower
      than VP8 stable branch as most new code has not been optimized, and
      even the 'C' has been deliberately written to be simple and obvious,
      not fast.
      
      The following graphs have the initial test results, numbers in the
      tables measure the compression improvement in terms of percentage. The
      build has  the following optional experiments configured:
      --enable-experimental --enable-enhanced_interp --enable-uvintra
      --enable-high_precision_mv --enable-sixteenth_subpel_uv
      
      CIF Size clips:
      http://getwebm.org/tmp/cif/
      HD size clips:
      http://getwebm.org/tmp/hd/
      (stable_20120309 represents encoding results of WebM master branch
      build as of commit#7a159071)
      
      They were encoded using the following encode parameters:
      --good --cpu-used=0 -t 0 --lag-in-frames=25 --min-q=0 --max-q=63
      --end-usage=0 --auto-alt-ref=1 -p 2 --pass=2 --kf-max-dist=9999
      --kf-min-dist=0 --drop-frame=0 --static-thresh=0 --bias-pct=50
      --minsection-pct=0 --maxsection-pct=800 --sharpness=0
      --arnr-maxframes=7 --arnr-strength=3(for HD,6 for CIF)
      --arnr-type=3
      
      Change-Id: I5c62ed09cfff5815a2bb34e7820d6a810c23183c
      6035da54
  19. 01 Mar, 2012 1 commit
  20. 16 Feb, 2012 1 commit
    • Yaowu Xu's avatar
      a bit code clean-up · 47d545f1
      Yaowu Xu authored
      Removed some transform code that is not in use.
      
      Change-Id: I9489af7e23d9d7fe052feb6c8bbafa62ebbda39c
      47d545f1
  21. 30 Jan, 2012 2 commits
    • John Koleszar's avatar
      RTCD: add arnr functions · 109b69a7
      John Koleszar authored
      This commit continues the process of converting to the new RTCD
      system. It removes the last of the VP8_ENCODER_RTCD struct references.
      
      Change-Id: I2a44f52d7cccf5177e1ca98a028ead570d045395
      109b69a7
    • John Koleszar's avatar
      RTCD: add block subtraction functions · be8af188
      John Koleszar authored
      This commit continues the process of converting to the new RTCD
      system.
      
      Change-Id: Id8a287fdd4bd050ea4452e1582ad85520f3081be
      be8af188
  22. 23 Dec, 2011 1 commit
  23. 15 Dec, 2011 1 commit
    • Scott LaVarnway's avatar
      Moved dequant idct into common · a53d5a4c
      Scott LaVarnway authored
      These functions are now used by the encoder.
      This is WIP with the goal of creating a common idct/add for
      the encoder and decoder.  A boost of 1.8% was seen for
      the HD rt test clip used.
      
      [Tero] Added needed changes to ARM side.
      
      Change-Id: Ibbb8000be09034203d7adffc457d3c3f8b06a5bf
      a53d5a4c
  24. 15 Nov, 2011 1 commit
    • Scott LaVarnway's avatar
      Added predictor stride argument(s) to subtract functions · edd98b73
      Scott LaVarnway authored
      Patch set 2: 64 bit build fix
      Patch set 3: 64 bit crash fix
      
      [Tero]
      Patch set 4: Updated ARMv6 and NEON assembly.
                   Added also minor NEON optimizations to subtract
                   functions.
      
      Patch set 5: x86 stride bug fix
      
      Change-Id: I1fcca93e90c89b89ddc204e1c18f208682675c15
      edd98b73
  25. 22 Sep, 2011 1 commit
  26. 24 Aug, 2011 1 commit
    • Scott LaVarnway's avatar
      Removed bmi copy to/from BLOCKD · b870947d
      Scott LaVarnway authored
      for SPLITMV and B_PRED modes.  Modified code to use the bmi
      found in mode_info_context instead of BLOCKD.  On the decode
      side, the uvmvs are calculated only when required, instead of
      every macroblock.  This is WIP. (bmi should eventually be
      removed from BLOCKD)
      Small performance gains noticed for RT encodes and decodes.(VGA)
      
      Change-Id: I2ed7f0fd5ca733655df684aa82da575c77a973e7
      b870947d
  27. 20 Jul, 2011 1 commit
  28. 20 Apr, 2011 1 commit
  29. 18 Mar, 2011 1 commit
    • John Koleszar's avatar
      Increase static linkage, remove unused functions · 429dc676
      John Koleszar authored
      A large number of functions were defined with external linkage, even
      though they were only used from within one file. This patch changes
      their linkage to static and removes the vp8_ prefix from their names,
      which should make it more obvious to the reader that the function is
      contained within the current translation unit. Functions that were
      not referenced were removed.
      
      These symbols were identified by:
      
        $ nm -A libvpx.a | sort -k3 | uniq -c -f2 | grep ' [A-Z] ' \
          | sort | grep '^ *1 '
      
      Change-Id: I59609f58ab65312012c047036ae1e0634f795779
      429dc676
  30. 09 Sep, 2010 1 commit
  31. 11 Aug, 2010 1 commit
  32. 18 Jun, 2010 1 commit
    • John Koleszar's avatar
      cosmetics: trim trailing whitespace · 94c52e4d
      John Koleszar authored
      When the license headers were updated, they accidentally contained
      trailing whitespace, so unfortunately we have to touch all the files
      again.
      
      Change-Id: I236c05fade06589e417179c0444cb39b09e4200d
      94c52e4d
  33. 04 Jun, 2010 1 commit
  34. 18 May, 2010 1 commit