1. 10 Dec, 2012 1 commit
    • Paul Wilkins's avatar
      Further changes to mv reference code. · d1244659
      Paul Wilkins authored
      Some further changes and refactoring of mv
      reference code and selection of center point for
      searches. Mainly relates to not passing so many
      different local copies of things around.
      
      Some place holder comments.
      
      Change-Id: I309f10ffe9a9cde7663e7eae19eb594371c8d055
      d1244659
  2. 08 Dec, 2012 1 commit
    • Ronald S. Bultje's avatar
      Introduce vp9_coeff_probs/counts/stats/accum types. · 885cf816
      Ronald S. Bultje authored
      Use these, instead of the 4/5-dimensional arrays, to hold statistics,
      counts, accumulations and probabilities for coefficient tokens. This
      commit also re-allows ENTROPY_STATS to compile.
      
      Change-Id: If441ffac936f52a3af91d8f2922ea8a0ceabdaa5
      885cf816
  3. 07 Dec, 2012 1 commit
    • Ronald S. Bultje's avatar
      32x32 transform for superblocks. · c456b35f
      Ronald S. Bultje authored
      This adds Debargha's DCT/DWT hybrid and a regular 32x32 DCT, and adds
      code all over the place to wrap that in the bitstream/encoder/decoder/RD.
      
      Some implementation notes (these probably need careful review):
      - token range is extended by 1 bit, since the value range out of this
        transform is [-16384,16383].
      - the coefficients coming out of the FDCT are manually scaled back by
        1 bit, or else they won't fit in int16_t (they are 17 bits). Because
        of this, the RD error scoring does not right-shift the MSE score by
        two (unlike for 4x4/8x8/16x16).
      - to compensate for this loss in precision, the quantizer is halved
        also. This is currently a little hacky.
      - FDCT and IDCT is double-only right now. Needs a fixed-point impl.
      - There are no default probabilities for the 32x32 transform yet; I'm
        simply using the 16x16 luma ones. A future commit will add newly
        generated probabilities for all transforms.
      - No ADST version. I don't think we'll add one for this level; if an
        ADST is desired, transform-size selection can scale back to 16x16
        or lower, and use an ADST at that level.
      
      Additional notes specific to Debargha's DWT/DCT hybrid:
      - coefficient scale is different for the top/left 16x16 (DCT-over-DWT)
        block than for the rest (DWT pixel differences) of the block. Therefore,
        RD error scoring isn't easily scalable between coefficient and pixel
        domain. Thus, unfortunately, we need to compute the RD distortion in
        the pixel domain until we figure out how to scale these appropriately.
      
      Change-Id: I00386f20f35d7fabb19aba94c8162f8aee64ef2b
      c456b35f
  4. 01 Dec, 2012 1 commit
  5. 30 Nov, 2012 2 commits
    • Deb Mukherjee's avatar
      Adds switchable filters with superblocks · 66323307
      Deb Mukherjee authored
      Allows switchbale filters to be used without mismatch when the
      superblock experiment is on.
      
      Also removes a spurious clamping code in decodemv.c which causes
      rare encode/decode mismatches.
      
      Change-Id: I809d9ee0b2859552b613500b539a615515b863ae
      66323307
    • Jim Bankoski's avatar
      warnings in various experiments · 9f937042
      Jim Bankoski authored
      Change-Id: Ib5106d4772450f8026f823dd743f162ab833b1d6
      9f937042
  6. 29 Nov, 2012 5 commits
    • Yaowu Xu's avatar
      minor fix to eob check for setting CONTEXT · 7ab1d3e4
      Yaowu Xu authored
      Previously, the "!=" check is logically incorrect when eob is at 0 and
      effective coefficient starting position is 1. This commit should have
      no effect on bitstream.
      
      Change-Id: I6ce3a847c7e72bfbe4f7c74f88e3310c6b9b6d30
      7ab1d3e4
    • Jim Bankoski's avatar
      unused variables & warnings · a802f5e7
      Jim Bankoski authored
      Change-Id: Ibea3bc80eb26a975faaa60268bbc93237f82bc57
      a802f5e7
    • Jim Bankoski's avatar
      ihtllm moves to rtcd · 030e268a
      Jim Bankoski authored
      clears up some warnings
      
      Change-Id: I9899637497c6ad7519f098e055ab98580ae6d688
      030e268a
    • Jim Bankoski's avatar
      more rtcd cleanup · 13dbf1fb
      Jim Bankoski authored
      Change-Id: Ieefd76e164ca4aa87597da0412977614ddfbacb7
      13dbf1fb
    • Deb Mukherjee's avatar
      Fixing 8x8/4x4 ADST for intra modes with tx select · 0742b1e4
      Deb Mukherjee authored
      This patch allows use of 8x8 and 4x4 ADST correctly for Intra
      16x16 modes and Intra 8x8 modes when the block size selected
      is smaller than the prediction mode. Also includes some cleanups
      and refactoring.
      
      Rebase.
      
      Change-Id: Ie3257bdf07bdb9c6e9476915e3a80183c8fa005a
      0742b1e4
  7. 28 Nov, 2012 1 commit
  8. 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
  9. 26 Nov, 2012 1 commit
    • Paul Wilkins's avatar
      Modified mv prediction. · d22f3d9f
      Paul Wilkins authored
      Modified the  mv_pred() fuunction that chooses a centre
      point from which to start step searches to use the top
      candidate vectors chosen previously.
      
      Some gains (mainly on HD and tested with SB off).
      Std_hd 0.874%, YT-hd 0.174%, YT 0.05%, Derf 0.036%
      
      Change-Id: Ie232284f561838b8ecee0e28dcbb07a9cd46cf56
      d22f3d9f
  10. 25 Nov, 2012 2 commits
  11. 16 Nov, 2012 2 commits
    • Ronald S. Bultje's avatar
      Support 32x32 intra modes in non-keyframe superblocks. · 5b11052a
      Ronald S. Bultje authored
      Change-Id: Icf8ad313c543462e523bff89690e5daa8d49bcc0
      5b11052a
    • 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
  12. 15 Nov, 2012 1 commit
  13. 14 Nov, 2012 1 commit
  14. 12 Nov, 2012 1 commit
    • Paul Wilkins's avatar
      New inter mode context · 2669f42b
      Paul Wilkins authored
      This change is a fix / extension of the newbestrefmv
      experiment. As such it is presented without IFDEF.
      
      The change creates a new context for coding inter modes
      in vp9_find_mv_refs(). This replaces the context that
      was previously calculated in vp9_find_near_mvs().
      The new context is unoptimized and not necessarily
      any better at this stage (results pending), but eliminates
      the need for a legacy call to vp9_find_near_mvs().
      Based on numbers from Scott, this could help decode
      speed by several %.
      
      In a later patch I will add support for forward update of
      context (assuming this helps) and refine the context as
      necessary.
      
      Change-Id: I1cd991b82c8df86cc02237a34185e6d67510698a
      2669f42b
  15. 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
  16. 08 Nov, 2012 2 commits
    • Jim Bankoski's avatar
      remove macros obfuscating mv costing · c72be96b
      Jim Bankoski authored
      cleanup
      
      Change-Id: I565eee40d900e0441ad211b65ac829fc5b93d94a
      c72be96b
    • 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
  17. 07 Nov, 2012 1 commit
  18. 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
    • James Zern's avatar
      rd_pick_inter_mode: prevent signed integer overflow · e47d9f1d
      James Zern authored
      calculate the txfm_cache difference first as both values may be
      INT64_MAX with the intent that they cancel each other out.
      
      Change-Id: I214d072458e1b24f60289974e6302af1aff7b66c
      e47d9f1d
  19. 05 Nov, 2012 1 commit
    • James Zern's avatar
      rdopt: fix use of uninitialized value in addition · f2541f8a
      James Zern authored
      rd_pick_intra4x4mby_modes / rd_pick_intra8x8mby_modes would both use the
      input value of 'rate_y' in the return calculation. In many places this
      value is uninitialized. Remove the unneeded sum.
      
      Change-Id: Icbd3df685303000301e69291c0ebc06f74bd548d
      f2541f8a
  20. 02 Nov, 2012 2 commits
  21. 01 Nov, 2012 3 commits
  22. 31 Oct, 2012 6 commits
  23. 30 Oct, 2012 1 commit
    • Yunqing Wang's avatar
      Convert the transforms to integer forms. · 8a9e4e8a
      Yunqing Wang authored
      Converted the forward and inverse transforms to integer forms.
      
      Modify #define TEST_INT 1/0
      in the code to call integer/float version of transforms.
      
      The tests showed that average OVERALL PSNR loss was less than 0.1%.
      
      Change-Id: I1dfa4eeab6412597e3b970ce299cf0e116a917e6
      8a9e4e8a