1. 05 Aug, 2013 1 commit
  2. 23 Jul, 2013 1 commit
    • Paul Wilkins's avatar
      Renaming of segment constants. · 32042af1
      Paul Wilkins authored
      Renamed:
        MAX_MB_SEGMENTS to MAX_SEGMENTS
        MB_SEG_TREE_PROBS to SEG_TREE_PROBS
      
      The minimum unit for segmentation in the segment map
      is now 8x8 so it is misleading to use MB_ as macro-block
      traditionally refers to a 16x16 region.
      
      Change-Id: I0b55a6f0426bb46dd13435fcfa5bae0a30a7fa22
      32042af1
  3. 22 Jul, 2013 1 commit
  4. 19 Jul, 2013 1 commit
  5. 16 Jul, 2013 2 commits
    • Dmitry Kovalev's avatar
      Loop filter code cleanup. · 2de3c8d2
      Dmitry Kovalev authored
      Cosmetic code changes, renaming 'flat' local var to 'mask', removing
      unused field 'blim' from loopfilter_info_n and loop_filter_info structs.
      
      Change-Id: I51e6ccf727fe361ad9a08e29e1201aa7abd4987f
      2de3c8d2
    • James Zern's avatar
      delete x86/vp9_loopfilter_x86.h · af582542
      James Zern authored
      also remove prototype_loopfilter{,_block} defines from vp9_loopfilter.h
      
      Change-Id: I865ab3f9436c7b1ca166f76630328abf01389405
      af582542
  6. 14 Jul, 2013 2 commits
  7. 11 Jul, 2013 1 commit
    • Dmitry Kovalev's avatar
      Moving segmentation related vars into separate struct. · c4ad3273
      Dmitry Kovalev authored
      Adding segmentation struct to vp9_seg_common.h. Struct members are from
      macroblockd and VP9Common structs. Moving segmentation related constants
      and enums to vp9_seg_common.h.
      
      Change-Id: I23fabc33f11a359249f5f80d161daf569d02ec03
      c4ad3273
  8. 09 Jul, 2013 1 commit
  9. 12 Jun, 2013 1 commit
  10. 25 May, 2013 1 commit
  11. 14 May, 2013 1 commit
  12. 08 May, 2013 1 commit
  13. 24 Apr, 2013 1 commit
    • Paul Wilkins's avatar
      Extension of segmentation to 8 segments. · 31ee193a
      Paul Wilkins authored
      Also some further simplification following removal
      of top node code.
      
      There is an issue in regards to the shared file vp8cx.h
      in regard to the roi_map as this interface assumes that
      there are only 4 segments. I have left the value here as
      4 for now meaning that the roi_map interface is broken
      for VP9.
      
      Note that this change would have been easier if I hadn't
      had to search for hard wire instances of the number 4
      and <= 3.
      
      Change-Id: Ia8b6deea4be4dbd20deb1656e689dd43a5f190e8
      31ee193a
  14. 17 Apr, 2013 1 commit
  15. 05 Apr, 2013 1 commit
  16. 26 Mar, 2013 1 commit
    • John Koleszar's avatar
      Add an in-loop deringing experiment · 441e2eab
      John Koleszar authored
      Adds a per-frame, strength adjustable, in loop deringing filter. Uses
      the existing vp9_post_proc_down_and_across 5 tap thresholded blur
      code, with a brute force search for the threshold.
      
      Results almost strictly positive on the YT HD set, either having no
      effect or helping PSNR in the range of 1-3% (overall average 0.8%).
      Results more mixed for the CIF set, (-0.5 min, 1.4 max, 0.1 avg).
      This has an almost strictly negative impact to SSIM, so examining a
      different filter or a more balanced search heuristic is in order.
      
      Other test set results pending.
      
      Change-Id: I5ca6ee8fe292dfa3f2eab7f65332423fa1710b58
      441e2eab
  17. 11 Jan, 2013 1 commit
  18. 10 Jan, 2013 1 commit
  19. 08 Jan, 2013 1 commit
    • Yaowu Xu's avatar
      minor loop filter refactoring and cleanup · d278d018
      Yaowu Xu authored
      This commit did a couple of minor cleanup/refactoring to prepare for
      futher loop filter experiments. It merged y_only version of loop filter
      function into the regular one, which makes sure that same logic is used
      for functions for picking level and for actual loop filtering.
      
      Change-Id: Id10c94dccd45f58e5310bacfdf6ee63cbb60b86f
      d278d018
  20. 18 Dec, 2012 1 commit
  21. 05 Dec, 2012 1 commit
  22. 03 Dec, 2012 1 commit
  23. 30 Nov, 2012 1 commit
  24. 28 Nov, 2012 1 commit
  25. 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
  26. 01 Nov, 2012 2 commits
  27. 31 Oct, 2012 2 commits
  28. 29 Oct, 2012 1 commit
  29. 16 Oct, 2012 1 commit
  30. 02 Aug, 2012 1 commit
    • Scott LaVarnway's avatar
      Added row based loopfilter · 1746b2ad
      Scott LaVarnway authored
      Interleaved loopfiltering with decode.  For 1080p clips, up to 1%
      performance gain.  For 4k clips, up to 10% seen.  This patch is required
      for better "frame-based" multithreading.
      
      Change-Id: Ic834cf32297cc04f27e8205652fb9f70cbe290db
      1746b2ad
  31. 17 Jul, 2012 1 commit
  32. 23 May, 2012 2 commits
    • Attila Nagy's avatar
      Fix another multithreaded encoder loopfilter race condition · 48908530
      Attila Nagy authored
      After a key frame encoding, the frame type could change while
      filtering is still going on. Pass the frame type as parameter to the
      loopfilter function and don't read it from common storage.
      
      vp8cx_set_alt_lf_level has to be done before packing the stream.
      Currently alt_lf_level is not used so there hasn't been any visible
      problem here.
      
      Change-Id: Ia114162158cd833c2b16e3b89303cc9c91f19165
      48908530
    • Attila Nagy's avatar
      Fix another multithreaded encoder loopfilter race condition · ea392d47
      Attila Nagy authored
      After a key frame encoding, the frame type could change while
      filtering is still going on. Pass the frame type as parameter to the
      loopfilter function and don't read it from common storage.
      
      vp8cx_set_alt_lf_level has to be done before packing the stream.
      Currently alt_lf_level is not used so there hasn't been any visible
      problem here.
      
      Change-Id: Ia114162158cd833c2b16e3b89303cc9c91f19165
      ea392d47
  33. 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
  34. 30 Jan, 2012 2 commits
    • John Koleszar's avatar
      RTCD: add recon functions · fdb61a45
      John Koleszar authored
      This commit continues the process of converting to the new RTCD
      system.
      
      Change-Id: I9bfcf9bef65c3d4ba0fb9a3e1532bad1463a10d6
      fdb61a45
    • John Koleszar's avatar
      RTCD: add loopfilter functions · 55f74c59
      John Koleszar authored
      This commit continues the process of converting to the new RTCD
      system.
      
      Change-Id: Ic8a4047d72ff3a54ec98977dd90e70c13213db71
      55f74c59