1. 30 Nov, 2012 1 commit
  2. 28 Nov, 2012 1 commit
  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. 15 Nov, 2012 1 commit
    • John Koleszar's avatar
      Pack invisible frames without lengths · 64bcffc1
      John Koleszar authored
      Modify the decoder to return the ending position of the bool decoder and
      use that as the starting position for the next frame.
      
      The constant-space algorithm for parsing the appended frame lengths is
      O(n^2), which is a potential DoS concern if n is unbounded. Revisit
      the appended lengths for use as partition lengths when multipartition
      support is added.
      
      In addition, this allows decoding of raw streams outside of a container
      without additional framing information, though it's insufficient to
      be able to remux said stream into a container.
      
      Change-Id: I71e801a9c3e37abe559a56a597635b0cbae1934b
      64bcffc1
  5. 01 Nov, 2012 2 commits
  6. 31 Oct, 2012 3 commits
  7. 30 Oct, 2012 1 commit
  8. 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
  9. 16 Oct, 2012 1 commit
    • John Koleszar's avatar
      Force interleaved decoding · c073e5ca
      John Koleszar authored
      Rather than decoding all modes/mvs separately, decode them per MB. This
      forces the mode which was already used form the CONFIG_NEWBESTREFMV and
      CONFIG_SUPERBLOCKS experiments, and is a precursor to changing to
      interleaved encoding.
      
      Change-Id: If19ee74ac8a987846d1cd0cf2b2e02a82f1a43ad
      c073e5ca
  10. 11 Oct, 2012 1 commit
  11. 09 Oct, 2012 1 commit
    • Scott LaVarnway's avatar
      Removing dr[16] from VP8D_COMP · f56d0679
      Scott LaVarnway authored
      Currently not used.  Also using this as a test commit into the
      experimental branch.
      
      Change-Id: I68c479461ae02f1c7a7f75fa02d1fc0db84bf198
      f56d0679
  12. 24 Sep, 2012 1 commit
  13. 21 Sep, 2012 1 commit
  14. 11 Sep, 2012 1 commit
    • Jim Bankoski's avatar
      fix valgrind mem leak on garbage decode · 7b7ca65b
      Jim Bankoski authored
      Multiple decoders were getting allocated per frame.
      If the decoder crashed we exitted with out freeing
      them and the next time in we'd allocate over.
      
      This fix removes the allocation and just has 8
      boolcoders in the pbi structure
      
      Change-Id: I638b5bda23b622b43b7992aec21dd7cf6f6278da
      7b7ca65b
  15. 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
  16. 03 Aug, 2012 2 commits
    • Yaowu Xu's avatar
      enable interleaved decoding of mode and mv · 2e73f901
      Yaowu Xu authored
      Previouly, the decoding of mode and motion vector are done a per frame
      basis followed by residue decoding and reconstuction. The commit added
      the option to allow decoder to interleave the decoding of mode and mvs
      with the residue decoding on a per MB basis.
      
      Change-Id: Ia5316f4a7af9ba7f155c92b5a6fc97201b653571
      2e73f901
    • 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
  17. 17 Jul, 2012 1 commit
  18. 01 Jun, 2012 1 commit
  19. 23 May, 2012 1 commit
    • Yaowu Xu's avatar
      changed the way that default probs for 8x8 is set. · e9818bb6
      Yaowu Xu authored
      The commit changed how baseline 8x8 coefficient probabilities are
      initialized, to be consistent with the initialization of baseline
      4x4 coefficient probabilities.
      
      The commit does not have any effect on compression.
      
      Change-Id: Ifb3902b5dc0b0c2e6dc3aa5d4a6589d528e58355
      e9818bb6
  20. 11 May, 2012 1 commit
  21. 24 Apr, 2012 1 commit
    • Attila Nagy's avatar
      Simplifies decoder multithread synching · 0c483d6b
      Attila Nagy authored
      Increment the last_row_mb_col counter by nsync after last MB of row is
      ready. This way we dont need to check for last MB of row when
      synching.
      
      Set last MB of row ready just after row extension is done, This avoids
      o potential race condition whit the processing of last MB of next row.
      
      Change-Id: I19c44fd6041116ee5483be2143b4f4bfcd149eac
      0c483d6b
  22. 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
  23. 01 Mar, 2012 1 commit
  24. 28 Feb, 2012 3 commits
  25. 15 Feb, 2012 1 commit
  26. 10 Feb, 2012 1 commit
    • Paul Wilkins's avatar
      Removal of threading code. · 2615ca5d
      Paul Wilkins authored
      For the experimental branch we are trying to slim the codebase
      down removing features such as threading for now which complicate
      the process of development and testing.
      
      Change-Id: I657c0246aef4d1fa8c8ffc6a1adfeee45bce8e24
      2615ca5d
  27. 06 Feb, 2012 1 commit
    • Paul Wilkins's avatar
      Moved prob_dualpred to common. · c98e9d28
      Paul Wilkins authored
      Moved the prob_dualpred[] sturcture to common.
      Created common prediction entry for Dual flag.
      
      Change-Id: I9ac3d128bae6114f09e5c18216d4b95cf36453d5
      c98e9d28
  28. 31 Jan, 2012 2 commits
  29. 30 Jan, 2012 1 commit
    • John Koleszar's avatar
      New RTCD implementation · a910049a
      John Koleszar authored
      This is a proof of concept RTCD implementation to replace the current
      system of nested includes, prototypes, INVOKE macros, etc. Currently
      only the decoder specific functions are implemented in the new system.
      Additional functions will be added in subsequent commits.
      
      Overview:
        RTCD "functions" are implemented as either a global function pointer
        or a macro (when only one eligible specialization available).
        Functions which have RTCD specializations are listed using a simple
        DSL identifying the function's base name, its prototype, and the
        architecture extensions that specializations are available for.
      
      Advantages over the old system:
        - No INVOKE macros. A call to an RTCD function looks like an ordinary
          function call.
        - No need to pass vtables around.
        - If there is only one eligible function to call, the function is
          called directly, rather than indirecting through a function pointer.
        - Supports the notion of "required" extensions, so in combination with
          the above, on x86_64 if the best function available is sse2 or lower
          it will be called directly, since all x86_64 platforms implement
          sse2.
        - Elides all references to functions which will never be called, which
          could reduce binary size. For example if sse2 is required and there
          are both mmx and sse2 implementations of a certain function, the
          code will have no link time references to the mmx code.
        - Significantly easier to add a new function, just one file to edit.
      
      Disadvantages:
        - Requires global writable data (though this is not a new requirement)
        - 1 new generated source file.
      
      Change-Id: Iae6edab65315f79c168485c96872641c5aa09d55
      a910049a
  30. 21 Dec, 2011 1 commit
  31. 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
  32. 06 Dec, 2011 1 commit
    • Ronald S. Bultje's avatar
      Dual 16x16 inter prediction. · 60cb39da
      Ronald S. Bultje authored
      This patch introduces the concept of dual inter16x16 prediction. A
      16x16 inter-predicted macroblock can use 2 references instead of 1,
      where both references use the same mvmode (new, near/est, zero). In the
      case of newmv, this means that two MVs are coded instead of one. The
      frame can be encoded in 3 ways: all MBs single-prediction, all MBs dual
      prediction, or per-MB single/dual prediction selection ("hybrid"), in
      which case a single bit is coded per-MB to indicate whether the MB uses
      single or dual inter prediction.
      
      In the future, we can (maybe?) get further gains by mixing this with
      Adrian's 32x32 work, per-segment dual prediction settings, or adding
      support for dual splitmv/8x8mv inter prediction.
      
      Gain (on derf-set, CQ mode) is ~2.8% (SSIM) or ~3.6% (glb PSNR). Most
      gain is at medium/high bitrates, but there's minor gains at low bitrates
      also. Output was confirmed to match between encoder and decoder.
      
      Note for optimization people: this patch introduces a 2nd version of
      16x16/8x8 sixtap/bilin functions, which does an avg instead of a
      store. They may want to look and make sure this is implemented to
      their satisfaction so we can optimize it best in the future.
      
      Change-ID: I59dc84b07cbb3ccf073ac0f756d03d294cb19281
      60cb39da
  33. 15 Nov, 2011 1 commit
    • Paul Wilkins's avatar
      Merge CONFIGURE_SEGMENTATION experiment. · 3cdfdb55
      Paul Wilkins authored
      Removal of CONFIGURE_SEGMENTATION ifdefs.
      
      Removal of legacy support code fo the old coding mechanism.
      
      Use local reference "xd" for MACROBLOCKD structure in
      encode_frame_to_data_rate()
      
      Moved call to choose_segmap_coding_method() out of encode
      loop as the cost of segmentation is not properly accounted
      in the loop anyway. If this is desirable in the future it
      can be moved back. The use of this function to do all the
      analysis and set the probabilities also removes the need
      to track segment useage in threading code.
      
      Change-Id: I85bc8fd63440e7176c73d26cb742698f9b70cade
      3cdfdb55