1. 30 Nov, 2012 1 commit
  2. 29 Nov, 2012 1 commit
  3. 28 Nov, 2012 3 commits
    • Jim Bankoski's avatar
      fixed includes to be fully specified · c6787398
      Jim Bankoski authored
      Change-Id: Ia1cce221f8511561b9cbd8edb7726fbc286ff243
      c6787398
    • Jim Bankoski's avatar
      remove postproc invokes · 85cba19e
      Jim Bankoski authored
      and some miscellaneous invoke left overs
      
      Change-Id: I63191b1bfd3bea4ce30cceaeb686ec850570fc43
      85cba19e
    • Yaowu Xu's avatar
      removed redundant mode_context data structures · 12da793d
      Yaowu Xu authored
      This commit removed a couple of redundant data structures in frame
      coding contextsm, mode_context and mode_context_a, and changed to
      use vp9_mode_contexts only. The switch of the context for different
      frame type now relies on the switch of frame coding context between
      lfc and lfc_a. This commit also removed a number of memcpy among
      these redundant data structure.
      
      Change-Id: I42e8174bd60f466b0860afc44c1263896471b0f3
      12da793d
  4. 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
  5. 16 Nov, 2012 3 commits
    • Ronald S. Bultje's avatar
      Support 32x32 intra modes in non-keyframe superblocks. · 5b11052a
      Ronald S. Bultje authored
      Change-Id: Icf8ad313c543462e523bff89690e5daa8d49bcc0
      5b11052a
    • Paul Wilkins's avatar
      Further experimentation with the mode context · a57dbd95
      Paul Wilkins authored
      Experiments with a larger set of contexts and some
      clean up to replace magic numbers regarding the
      number of contexts.
      
      The starting values and rate of backwards adaption
      are still suspect and based on a small set of tests.
      Added forwards adjustment of probabilities.
      
      The net result of adding the new context and forward
      update is small compared to the old context from the
      legacy find_near function.  (down a little on derf but
      up by a similar amount for HD)
      
      HOWEVER.... with the new context and forward update
      the impact of disabling the reverse update (which may be
      necessary in some use cases to facilitate parallel decoding)
      is hugely reduced.
      
      For the old context without forward update, the impact of
      turning off reverse update (Experiment was with SB off) was
      Derf - 0.9, Yt -1.89, ythd -2.75 and sthd -8.35. The impact was
      mainly at low data rates.
      
      With the new context and forward update enabled the impact
      for all the test sets was no more than 0.5-1% (again most at
      the low end).
      
      Change-Id: Ic751b414c8ce7f7f3ebc6f19a741d774d2b4b556
      a57dbd95
    • Deb Mukherjee's avatar
      Compound inter-intra experiment · 0c917fc9
      Deb Mukherjee authored
      A patch on compound inter-intra prediction.
      
      In compound inter-intra prediction, a new predictor for
      16x16 inter coded MBs are obtained by combining a single
      inter predictor with a 16x16 intra predictor, in a manner
      that the weight varies with distance from the top/left
      boundary. The current search strategy is to combine the best
      inter mode with the best intra mode obtained independently.
      
      Results so far:
      
      derf +0.31%
      yt +0.32%
      std-hd +0.35%
      hd +0.42%
      
      It is conceivable that the results would improve somewhat
      with a more thorough search strategy where all intra modes
      are searched given the best mv, or even a joint search for
      the best mv and the best intra mode.
      
      Change-Id: I7951f1ed0d6eb31ca32ac24d120f1585bcd8d79b
      0c917fc9
  6. 10 Nov, 2012 1 commit
    • Deb Mukherjee's avatar
      New b-intra mode where direction is contextual · d01357bb
      Deb Mukherjee authored
      Preliminary patch on a new 4x4 intra mode B_CONTEXT_PRED where the
      dominant direction from the context is used to encode. Various decoder
      changes are needed to support decoding of B_CONTEXT_PRED in conjunction
      with hybrid transforms since the scan order and tokenization depends on
      the actual direction of prediction obtained from the context. Currently
      the traditional directional modes are used in conjunction with the
      B_CONTEXT_PRED, which also seems to provide the best results.
      
      The gains are small - in the 0.1% range.
      
      Change-Id: I5a7ea80b5218f42a9c0dfb42d3f79a68c7f0cdc2
      d01357bb
  7. 06 Nov, 2012 2 commits
    • Yaowu Xu's avatar
      silent a lot of MSVC compiler warnings · 8a336b0d
      Yaowu Xu authored
      there are still a couple type of warning left, which are related to
      double constants assigned to float type. As those would be addressed
      by the conversion of transforms into integer version. This commit
      has left those un-dealt with.
      
      Change-Id: I48fd9b489c0c27ad6b543f4177423419f929f2bb
      8a336b0d
    • Jim Bankoski's avatar
      remove invoke_search macro · 7849aa20
      Jim Bankoski authored
      Removed invoke search from encoder
      
      Change-Id: I3d809b795abe6df0e71366edfe94026aaede14fb
      7849aa20
  8. 02 Nov, 2012 1 commit
  9. 01 Nov, 2012 2 commits
  10. 31 Oct, 2012 3 commits
  11. 30 Oct, 2012 1 commit
    • Ronald S. Bultje's avatar
      Fix superblock experiment. · 7944b4f2
      Ronald S. Bultje authored
      Also merge some duplicate code related to the superblock experiment
      in the RD loop.
      
      Change-Id: Ic93f1d4d1ed81220fd7ecf6e65da2821a215b2de
      7944b4f2
  12. 29 Oct, 2012 2 commits
  13. 26 Oct, 2012 1 commit
    • Paul Wilkins's avatar
      Explicit MV reference experiment. · ba30e774
      Paul Wilkins authored
      Coding and costing of mv reference signal.
      
      Issues in updating MV ref with COMPANDED_MVREF_THRESH
      to be resolved. Ideally the MV precision should be defined based
      on absolute MV magnitude not as now the MV ref magnitude.
      
      Update to mv counts moved into bitstream.c because otherwise
      if the motion reference is changed at the last minute the encoder
      and decoder get out of step in terms of the counts used to update
      entropy probs.
      
      Code working on a few test clips but no results yet re benefit vs
      signaling cost and no tuning of red loop to test lower cost alternatives
      based on the available reference values.
      
      Patch 3. Added check to make sure we don't pick a reference
      that would give rise to an uncodeable / out of range residual.
      
      Patch 6-7: Attempt to rebase. OK to submit but best to leave flag off for now.
      
      Patch 9. Remove print no longer needed.
      
      Change-Id: I1938c2ffe41afe6d3cf6ccc0cb2c5d404809a712
      ba30e774
  14. 23 Oct, 2012 1 commit
    • Deb Mukherjee's avatar
      Merging in the Switchable interp experiment · 53731197
      Deb Mukherjee authored
      There is a macro DEFAULT_INTERP_FILTER defined in encoder/onyx_if.c that
      is set as EIGHTTAP for now - so SWITCHABLE is not really used. Ideally,
      this should be SWITCHABLE but that would make the encoder quite a bit slower.
      We will change the default filter to SWITCHABLE once we find a faster way to
      search for switchable filters.
      
      Change-Id: Iee91832cdc07e6e14108d9b543130fdd12fc9874
      53731197
  15. 22 Oct, 2012 5 commits
  16. 19 Oct, 2012 1 commit
    • John Koleszar's avatar
      Remove bc, bc2 from pbi,cpi,xd · e9fd1eac
      John Koleszar authored
      Pass the bool coder to be used explicitly. This avoids cases where two
      different bool coders can be addressed from the same function. Also be
      more consistent with bool coder variable naming, start to standardize
      on 'bc'.
      
      Change-Id: I1c95e2fdbe24ebe8c0f84924daa1728e3b054a31
      e9fd1eac
  17. 15 Oct, 2012 1 commit
    • Ronald S. Bultje's avatar
      Add a new token stuffing function vp8_stuff_mb(). · e7881462
      Ronald S. Bultje authored
      This way a caller doesn't need to implement the logic for which (and how
      many) tokens to write out to stuff one macroblock worth of EOBs. Make
      the actual function implementations static, since they are now only used
      in tokenize.c; also do some minor stylistic changes so it follows the
      style guide a little more closely; use PLANE_TYPE where appropriate,
      remove old (stale) frame_type function arguments; hardcode plane type
      where only a single one is possible (2nd order DC or U/V EOB stuffing);
      support stuffing 8x8/4x4 transform EOBs with no 2nd order DC.
      
      Change-Id: Ia448e251d19a4e3182eddeb9edd034bd7dc16fa3
      e7881462
  18. 11 Oct, 2012 2 commits
  19. 09 Oct, 2012 1 commit
    • Ronald S. Bultje's avatar
      Selectable transform size try 2. · 9ca3c8b2
      Ronald S. Bultje authored
      Results: derf (vanilla or +hybridtx) +0.2% and (+hybrid16x16
      or +tx16x16) +0.7%-0.8%; HD (vanilla or +hybridtx) +0.1-0.2%
      and (+hybrid16x16 or +tx16x16) +1.4%, STD/HD (vanilla or +hybridtx)
      about even, and (+hybrid16x16 or +tx16x16) +0.8-1.0%.
      
      Change-Id: I03899e2f7a64e725a863f32e55366035ba77aa62
      9ca3c8b2
  20. 27 Sep, 2012 1 commit
    • Deb Mukherjee's avatar
      Entropy coding for hybrid transform · 3f5d60b3
      Deb Mukherjee authored
      Separates the entropy coding context models for 4x4, 8x8 and 16x16
      ADST variants.
      
      There is a small improvement for HD (hd/std-hd) by about 0.1-0.2%.
      Results on derf/yt are about the same, probably because there is not
      enough statistics.
      
      Results may improve somewhat once the initial probability tables are
      updated for the hybrid transforms which is coming soon.
      
      Change-Id: Ic7c0c62dacc68ef551054fdb575be8b8507d32a8
      3f5d60b3
  21. 07 Sep, 2012 1 commit
    • Paul Wilkins's avatar
      Partial merge of NEWBESTREFMV and NEW_MVREF. · 778ec421
      Paul Wilkins authored
      This commit merges those parts of the CONFIG_NEW_MVREF
      that specifically relate to choosing a better set of candidate
      MV references into the NEWBESTREFMV experiment.
      
      CONFIG_NEW_MVREF will then be used for changes relating
      to the explicit coding of a cost optimized MV reference in the
      bitstream as part of MV coding.
      
      Change-Id: Ied982c0ad72093eab29e38b8cd74d5c3d7458b10
      778ec421
  22. 06 Sep, 2012 1 commit
    • Deb Mukherjee's avatar
      New motion vector entropy coding · 00f9eb65
      Deb Mukherjee authored
      Adds a new experiment with redesigned/refactored motion vector entropy
      coding. The patch also takes a first step towards separating the
      integer and fractional pel components of a MV. However the fractional
      pel encoding still depends on the integer pel part and so they are
      not fully independent. Further experiments are in progress to see
      how much they can be decoupled without affecting performance.
      All components including entropy coding/decoding, costing for MV
      search, forward updates and backward updates to probability tables,
      have been implemented.
      
      Results so far:
      derf: +0.19%
      std-hd: +0.28%
      yt: +0.80%
      hd: +1.15%
      
      Patch: Simplifies the fractional pel models:
      derf: +0.284%
      std-hd: +0.289%
      yt: +0.849%
      hd: +1.254%
      
      Patch: Some changes in the models, rebased.
      derf: +0.330%
      std-hd: +0.306%
      yt: +0.816%
      hd: +1.225%
      
      Change-Id: I646b3c48f3587f4cc909639b78c3798da6402678
      00f9eb65
  23. 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
  24. 24 Aug, 2012 1 commit
    • Paul Wilkins's avatar
      New Motion Reference Search · 2d60bee1
      Paul Wilkins authored
      Alternative strategy for finding a list of candidate motion
      vectors to use as reference values in mv coding and as
      nearest and near.
      
      Sort by sad in vp8_find_best_ref_mvs() rather than just
      pick the best. Allow 0,0 as a best ref option but not a
      nearest or near unless there are no alternatives.
      
      Encode/Decode verified on at least some clips.
      
      Some commented out experimental and stats code still in place.
      
      Gain over existing code averages about 1% on derf (alll metrics)
      with improvement on all clips. Other test results pending.
      
      The entropy coding of the mode (nearest/near etc) still
      depends upon and requires the old "findnear" code so
      this needs looking at and may provide room for further gains.
      
      Change-Id: I871d7cba1d1c379c4bad9bcccce1fb19c46b8247
      2d60bee1
  25. 21 Aug, 2012 1 commit
    • Yunqing Wang's avatar
      Add biasing to ZEROMV for videos with static background · 24c346df
      Yunqing Wang authored
      For videos with big static background(such as video conferencing
      clips), the mode decision was biased to ZEROMV in order to
      obtain a stable background. The percentage of ZEROMV on last
      frame was used to predict if there is static area in current frame,
      and checking already-encoded neighboring macroblocks' motion
      vectors to make sure the local area has low motion.
      
      Change-Id: I05b3241d3a56a0bda88b6681e5646c1c8baf2e57
      24c346df
  26. 20 Aug, 2012 1 commit
    • Ronald S. Bultje's avatar
      Superblock coding. · 5d4cffb3
      Ronald S. Bultje authored
      This commit adds a pick_sb_mode() function which selects the best 32x32
      superblock coding mode. Then it selects the best per-MB modes, compares
      the two and encodes that in the bitstream.
      
      The bitstream coding is rather simplistic right now. At the SB level,
      we code a bit to indicate whether this block uses SB-coding (32x32
      prediction) or MB-coding (anything else), and then we follow with the
      actual modes. This could and should be modified in the future, but is
      omitted from this commit because it will likely involve reorganizing
      much more code rather than just adding SB coding, so it's better to let
      that be judged on its own merits.
      
      Gains on derf: about even, YT/HD: +0.75%, STD/HD: +1.5%.
      
      Change-Id: Iae313a7cbd8f75b3c66d04a68b991cb096eaaba6
      5d4cffb3