1. 12 Jun, 2013 2 commits
  2. 10 Jun, 2013 2 commits
    • John Koleszar's avatar
      Fix use of get_uv_tx_size in loopfilter · 717d744a
      John Koleszar authored
      Change the argument of get_uv_tx_size() to be an MBMI pointer, so that the
      correct column's MBMI can be passed to the function.
      
      Change-Id: Ied6b8ec33b77cdd353119e8fd2d157811815fc98
      717d744a
    • Tero Rintaluoma's avatar
      Fixed point reference picture scaling · 86bb6df0
      Tero Rintaluoma authored
      Fixed point scaling factors are calculated once for each
      reference frame by using integer division. Otherwise fixed point
      scaling routines are used in all scaling calculations. This makes it
      possible to calculate fixed point scaling factors on device driver
      software and pass them to hardware and thus avoid division on hardware.
      
      TODO:
       - Missing check for maximum frame dimensions
         (currently scaling uses 14 bits)
       - Missing check for maximum scaling ratio
         (upscaling 16:1, downscaling 2:1)
      
      Problems:
       - Straightforward fixed point implementation can cause error +-1
         compared to integer division (i.e. in x_step_q4). Should only
         be an issue for frames larger than 16k.
      
      Change-Id: I3cf4dabd610a4dc18da3bdb31ae244ebaf5d579c
      86bb6df0
  3. 07 Jun, 2013 5 commits
    • Deb Mukherjee's avatar
      Coding tx-size selection by use of spatial context · 21401942
      Deb Mukherjee authored
      Adds coding of transform size within a frame by use of context
      of transform sizes selected in left and above blocks.
      
      Also incorporates code for generating stats.
      
      TODO: generate and incorporate new default stats
      
      Change-Id: I6a7af099f6ad61d448521d9a51167aedaf638ed6
      21401942
    • Ronald S. Bultje's avatar
      Fix segment feature data type. · fb1f6f1d
      Ronald S. Bultje authored
      It has a range of -255,255, so should be int16_t, not int8_t.
      
      Change-Id: I5ef4b6aefb6212b0f35f4754f3c4d73fddbc52a0
      fb1f6f1d
    • Yaowu Xu's avatar
      Remove two un-used entries in mode_lf_delta[] · b097a3ba
      Yaowu Xu authored
      With the removal of i4X4 and SPLIT_MV modes, the two entries for the
      modes are no longer used. This patch remove the coding of the deltas.
      
      Change-Id: Iea4eb500404ebe9706159380a03b8eca542fb4c3
      b097a3ba
    • Deb Mukherjee's avatar
      Coding updates for tx-size selection · 3ee1a21a
      Deb Mukherjee authored
      Changes to the coding of transform sizes, along with forward
      and backward probability updates.
      
      Results:
      derf300: +0.241%
      
      Context based coding of transform sizes will be in a separate
      patch.
      
      Change-Id: I97241d60a926f014fee2de21fa4446ca56495756
      3ee1a21a
    • Ronald S. Bultje's avatar
      Change ref frame coding. · 6ef805eb
      Ronald S. Bultje authored
      Code intra/inter, then comp/single, then the ref frame selection.
      Use contextualization for all steps. Don't code two past frames
      in comp pred mode.
      
      Change-Id: I4639a78cd5cccb283023265dbcc07898c3e7cf95
      6ef805eb
  4. 06 Jun, 2013 3 commits
    • Ronald S. Bultje's avatar
      New intra mode and partitioning probabilities. · ad343687
      Ronald S. Bultje authored
      Split partition probabilities between keyframes and non-keyframes,
      since they are fairly different. Also have per-blocksize interframe
      y intramode probabilities, since these vary heavily between different
      blocksizes.
      
      Lastly, replace default probabilities for partitioning and intra modes
      with new ones generated from current codec. Replace counts with actual
      probabilities also.
      
      Change-Id: I77ca996e25e4a28e03bdbc542f27a3e64ca1234f
      ad343687
    • Jim Bankoski's avatar
      don't tokenize & encode tokens for blocks in UMV · 5a88271b
      Jim Bankoski authored
      This avoids encoding tokens for blocks that are entirely
      in the UMV border. This changes the bitstream.
      
      Change-Id: I32b4df46ac8a990d0c37cee92fd34f8ddd4fb6c9
      5a88271b
    • Jingning Han's avatar
      Fix UV intra coding rd loop · f04b1548
      Jingning Han authored
      This commit makes the coding/reconstruction operations of intra
      coding rate-distortion loop for UV components consistent with those
      of the encoding process.
      
      key frame coding gains:
      derf:   0.11%
      stdhd:  0.42%
      
      Change-Id: I8d49f83924a320e3689ef2d60096c49d7f0c7a40
      f04b1548
  5. 05 Jun, 2013 1 commit
  6. 31 May, 2013 6 commits
  7. 30 May, 2013 2 commits
    • Ronald S. Bultje's avatar
      Remove i4x4_pred. · 1efa79d3
      Ronald S. Bultje authored
      It remains as a local define in rdopt.c so we can distinguish between
      split and non-split modes in the RD loop, but disappears outside that
      scope in the codec.
      
      Change-Id: I98c18fe5ab7e4fbd1d6620ec5695e2ea20513ce9
      1efa79d3
    • Paul Wilkins's avatar
      Patch to remove implicit segmentation. · 1b103f25
      Paul Wilkins authored
      This patch removes the implicit segmentation
      experiment from the code base as the benefits
      were still unproven as of the bitstream deadline.
      
      Change-Id: I273b99d8d621d1853eac4182f97982cb5957247e
      1b103f25
  8. 29 May, 2013 1 commit
    • Scott LaVarnway's avatar
      Moved use_prev_in_find_mv_refs check to frame level · 353642bc
      Scott LaVarnway authored
      This patch checks at the frame level to see if the previous
      mode info context can be used.  This patch eliminates the
      flag check that was done for every mode and removes another
      check that was done prior to every vp9_find_mv_refs().
      
      Change-Id: I9da5e18b7e7e28f8b1f90d527cad087073df2d73
      353642bc
  9. 27 May, 2013 2 commits
    • Yaowu Xu's avatar
      a few clean-ups · 2b96ffe0
      Yaowu Xu authored
      1. remove prediction mode conversion
      2. unified bmode, same for key and non-key frame
      3. set I4X4_PRED count for pdf to 0, as I4X4_PRED is no longer
      coded ever. It is determined by ref_frame and block partition
      
      Change-Id: If5b282957c24339b241acdb9f2afef85658fe47d
      2b96ffe0
    • Jingning Han's avatar
      Reduce bmi buffer length from 16 to 4 · de735929
      Jingning Han authored
      This commit removes the use of bmi_ in the first-pass encoding by
      forcing encode_intra4x4block_ to use DC_PRED, followed by DCT_DCT
      only, as John suggested. This makes the need for bmi buffer only
      up to 4 entries, instead of 16.
      
      Change-Id: I3410007dfae789ee46a09ae20c39d3ce3c7954aa
      de735929
  10. 26 May, 2013 1 commit
    • Ronald S. Bultje's avatar
      Remove splitmv. · 5cac6607
      Ronald S. Bultje authored
      Also do per-partition motion vector referencing in <sb8x8 partitions,
      and adjust mvref finding for sub8x8 partitions.
      
      Change-Id: Id3ed1ed4d2a8910d11d327db6cc63b8eb79f941f
      5cac6607
  11. 24 May, 2013 1 commit
    • Yaowu Xu's avatar
      Change txfm_type decision · 22694ca1
      Yaowu Xu authored
      The changing in intra coding to base on transform block, i.e. pred->
      txfm->quant->dequant-itxfm->recon, made all blocks within a prediction
      unit behave consistently, there is no longer a need to handle blocks
      differently based on the position within a predicitn block. So this
      commit simplifies the decision of transform type to be based on
      prediction mode only.
      
      Change-Id: If96cb72386f2e9186126ace88afa35ef085b6c96
      22694ca1
  12. 23 May, 2013 1 commit
    • Jingning Han's avatar
      Merge 4x4 block level partition into codebase · 7ac5ac52
      Jingning Han authored
      Move 4x4/4x8/8x4 partition coding out of experimental list.
      
      This commit fixed the unit test failure issues. It also resolved
      the merge conflicts between 4x4 block level partition and iterative
      motion search for comp_inter_inter.
      
      Change-Id: I898671f0631f5ddc4f5cc68d4c62ead7de9c5a58
      7ac5ac52
  13. 22 May, 2013 1 commit
    • Yaowu Xu's avatar
      changes intra coding to be based on txfm block · 8ba92a0b
      Yaowu Xu authored
      This commit changed the encoding and decoding of intra blocks to be
      based on transform block. In each prediction block, the intra coding
      iterates thorough each transform block based on raster scan order.
      
      This commit also fixed a bug in D135 prediction code.
      
      TODO next:
      The RD mode/txfm_size selection should take this into account when
      computing RD values.
      
      Change-Id: I6d1be2faa4c4948a52e830b6a9a84a6b2b6850f6
      8ba92a0b
  14. 21 May, 2013 1 commit
  15. 20 May, 2013 1 commit
    • Scott LaVarnway's avatar
      WIP: 4x4 idct/recon merge · ba48a111
      Scott LaVarnway authored
      This patch eliminates the intermediate diff buffer usage by
      combining the short idct and the add residual into one function.
      The encoder can use the same code as well.
      
      Change-Id: I296604bf73579c45105de0dd1adbcc91bcc53c22
      ba48a111
  16. 19 May, 2013 1 commit
    • Jingning Han's avatar
      Enable bit-stream support to 8x4 and 4x8 partition · 810b612c
      Jingning Han authored
      The recursive partition type search is enabled down to 4x4, 4x8 and
      8x4, followed by the corresponding rate-distortion optimization for
      the per-partition encoding mode decisions.
      
      The bit-stream writing/reading synchronized in supporting the
      rectangular partition of 8x8 block.
      
      This provides above 1% coding performance gains on derf.
      
      To do next:
      1. re-design the rate-distortion loop for inter prediction below 8x8.
      2. re-design the rate-distortion loop for intra prediction below 4x4.
      3. make the loop-filter aware of rectangular partition of 8x8 block.
      4. clean the unused probability models.
      5. update default probability values.
      
      Change-Id: Idd41a315b16879db08f045a322241f46f1d53f20
      810b612c
  17. 17 May, 2013 2 commits
    • Paul Wilkins's avatar
      Remove MODE_STATS flag and code · 51bc4bf4
      Paul Wilkins authored
      Change-Id: I6c70a8a8a4633399842ac74792003ae5f7859ffa
      51bc4bf4
    • John Koleszar's avatar
      Initial version of alpha channel support · 679e4abd
      John Koleszar authored
      This is a mostly-working implementation of an extra channel in the
      bitstream. Configure with --enable-alpha to test. Notable TODOs:
      
       - Add extra channel to all mismatch tests, PSNR, SSIM, etc
       - Configurable subsampling
       - Variable number of planes (currently always uses all 4)
       - Loop filtering
       - Per-plane lossless quantizer
       - ARNR support
      
      This implementation just uses the same contents as the Y channel
      for the A channel, due to lack of content and general pain in
      playing back 4 channel content. A later patch will use the actual
      alpha channel passed in from outside the codec.
      
      Change-Id: Ibf81f023b1c570bd84b3064e9b4b8ae52e087592
      679e4abd
  18. 16 May, 2013 2 commits
    • Yaowu Xu's avatar
      Removed Q threshold in the usage of ADST · e3869e9c
      Yaowu Xu authored
      Test on cif set showed small but consistent compression gain for
      almost all encodings with overall impact of .08%. The gains average
      aournd .12% combined with D63 adst change.
      
      Test encoding on std-hd set is ongoing..
      
      Change-Id: If4d94799cf0486fb9c770b193e5c386d13d99d59
      e3869e9c
    • Jingning Han's avatar
      Add building blocks for 4x8/8x4 rd search · 8e3d0e4d
      Jingning Han authored
      These building blocks enable rate-distortion optimization search
      over block sizes of 8x4 and 4x8. Need to convert them into mmx/sse
      forms.
      
      Change-Id: I570ea2d22d14ceec3fe3575128d7dfa172a577de
      8e3d0e4d
  19. 15 May, 2013 1 commit
  20. 14 May, 2013 2 commits
    • Jingning Han's avatar
      Enable recursive partition down to 4x4 · 1f26840f
      Jingning Han authored
      This commit allows the rate-distortion optimization recursion
      at encoder to go down to 4x4 block size. It deprecates the use
      of I4X4_PRED and SPLITMV syntax elements from bit-stream
      writing/reading. Will remove the unused probability models in
      the next patch.
      
      The partition type search and bit-stream are now capable of
      supporting the rectangular partition of 8x8 block, i.e., 8x4
      and 4x8. Need to revise the rate-distortion parts to get these
      two partition tested in the rd loop.
      
      Change-Id: I0dfe3b90a1507ad6138db10cc58e6e237a06a9d6
      1f26840f
    • Yaowu Xu's avatar
      changed to use adst for D63_PRED · da3aec6c
      Yaowu Xu authored
      To be consistent with other prediciton modes
      
      Change-Id: If9e1464e5c807f0b36047a046c4ac59d91b1b868
      da3aec6c
  21. 11 May, 2013 1 commit
    • Jingning Han's avatar
      Move get_sb_index to vp9_blockd.h · 2117d4ee
      Jingning Han authored
      Use common function to fetch/assign sb_index in rd loop, bit-stream
      writing and reading.
      
      Change-Id: I1d8a214a57ed9cbcd026040436ef33e5e39d65b7
      2117d4ee
  22. 10 May, 2013 1 commit
    • John Koleszar's avatar
      Subsampling aware allocs and bitstream · da58436f
      John Koleszar authored
      Make framebuffer allocations according to the chroma subsamping
      factors in use. A bit is placed in the raw part of the frame header for
      each of the two subsampling factors. This will be moved in a future
      commit to make them part of the TBD feature set bits, probably only set
      on keyframes, etc.
      
      Change-Id: I59ed38d3a3c0d4af3c7c277617de28d04a001853
      da58436f