1. 16 Dec, 2013 2 commits
  2. 02 Dec, 2013 1 commit
    • Adrian Grange's avatar
      Fix bug in extend_frame chroma extended too far · 2e88f2f2
      Adrian Grange authored
      This fixes issue 667.
      
      In the case where the frame was an odd number of pixels
      wide or high, the border was being extended by one col
      or row too far.
      
      The calculation of color plane dimensions was modified
      to use those already computed at the time the frame
      buffer was allocated.
      
      Also freed the temporary scaling buffer in vpxdec to
      prevent a memory leak.
      
      Change-Id: I195bc81d84c0fc5d8260c1232200d62399e4b51f
      2e88f2f2
  3. 22 Nov, 2013 1 commit
    • Adrian Grange's avatar
      Fix bug in extend_frame chroma extended too far · d427fab5
      Adrian Grange authored
      This fixes issue 667.
      
      In the case where the frame was an odd number of pixels
      wide or high, the border was being extended by one col
      or row too far.
      
      The calculation of color plane dimensions was modified
      to use those already computed at the time the frame
      buffer was allocated.
      
      Also freed the temporary scaling buffer in vpxdec to
      prevent a memory leak.
      
      Change-Id: Ied04bdcdfd77469731408c05da205db1a6f89bf5
      d427fab5
  4. 14 Nov, 2013 1 commit
  5. 24 Aug, 2013 2 commits
    • James Zern's avatar
      cosmetics: yv12extend add some const · 8b970da4
      James Zern authored
      Change-Id: I87f1ce2ceca80d3869dd72ba862329a98eb3e0c2
      8b970da4
    • James Zern's avatar
      yv12extend: name variables consistently · 5724b7e2
      James Zern authored
      - s|source -> src
      - dest -> dst
      - use verbose names in extend_plane dropping the redundant comments
      
      + light cosmetics:
      - join a few lines / assignments
      - drop some unnecessary comments & includes
      
      Change-Id: I6d979a85a0223a0a79a22f79a6d9c7512fd04532
      5724b7e2
  6. 23 Aug, 2013 1 commit
  7. 16 Aug, 2013 1 commit
  8. 09 Aug, 2013 1 commit
  9. 30 Jul, 2013 1 commit
  10. 17 Jul, 2013 1 commit
  11. 16 Jul, 2013 1 commit
    • Yaowu Xu's avatar
      Change to extend full border only when needed · 5b915ebd
      Yaowu Xu authored
      This is a short term optimization till we work out a decoder
      implementation requiring no frame border extension.
      
      Change-Id: I02d15bfde4d926b50a4e58b393d8c4062d1be70f
      5b915ebd
  12. 25 Jun, 2013 1 commit
  13. 08 Jun, 2013 1 commit
  14. 17 May, 2013 1 commit
    • 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
  15. 16 May, 2013 1 commit
    • John Koleszar's avatar
      Add vp9_extend_frame_borders · 418564e7
      John Koleszar authored
      Adds a subsampling aware border extension function. This may be reworked
      soon to support more than 3 planes.
      
      Change-Id: I76b81901ad10bb1e678dd4f0d22740ca6c76c43b
      418564e7
  16. 15 May, 2013 1 commit
  17. 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
  18. 03 Apr, 2013 1 commit
  19. 14 Mar, 2013 1 commit
    • John Koleszar's avatar
      Fix pulsing issue with scaling · 9b7be888
      John Koleszar authored
      Updates the YV12_BUFFER_CONFIG structure to be crop-aware. The
      exiting width/height parameters are left unchanged, storing the
      width and height algined to a 16 byte boundary. The cropped
      dimensions are added as new fields.
      
      This fixes a nasty visual pulse when switching between scaled and
      unscaled frame dimensions due to a mismatch between the scaling
      ratio and the 16-byte aligned sizes.
      
      Change-Id: Id4a3f6aea6b9b9ae38bdfa1b87b7eb2cfcdd57b6
      9b7be888
  20. 08 Feb, 2013 1 commit
    • John Koleszar's avatar
      Avoid allocating memory when resizing frames · c03d45de
      John Koleszar authored
      As long as the new frame is smaller than the size that was originally
      allocated, we don't need to free and reallocate the memory allocated.
      Instead, do the allocation on the size of the first frame. We could
      make this passed in from the application instead, if we wanted to
      support external upscaling.
      
      Change-Id: I204d17a130728bbd91155bb4bd863a99bb99b038
      c03d45de
  21. 06 Dec, 2012 3 commits
  22. 05 Dec, 2012 1 commit
    • Johann's avatar
      Begin to refactor vpx_scale usage in VP9 · 52d350fe
      Johann authored
      Only declare the functions in vpx_scale RTCD and include the relevant
      header.
      
      Remove unused files and functions in vpx_scale to avoid wasting time
      renaming. vpx_scale/win32/scaleopt.c contains functions which have not
      been called in a long time but are potentially optimized.
      
      The 'vp8' functions have not been renamed yet. That is for after the
      cleanup.
      
      Change-Id: I2c325a101d60fa9d27e7dfcd5b52a864b4a1e09c
      52d350fe
  23. 03 Dec, 2012 1 commit
    • Johann's avatar
      Begin to refactor vpx_scale usage in VP9 · c6bd29e2
      Johann authored
      Only declare the functions in vpx_scale RTCD and include the relevant
      header.
      
      Remove unused files and functions in vpx_scale to avoid wasting time
      renaming. vpx_scale/win32/scaleopt.c contains functions which have not
      been called in a long time but are potentially optimized.
      
      The 'vp8' functions have not been renamed yet. That is for after the
      cleanup.
      
      Change-Id: I2c325a101d60fa9d27e7dfcd5b52a864b4a1e09c
      c6bd29e2
  24. 15 Nov, 2012 1 commit
  25. 02 Nov, 2012 2 commits
    • John Koleszar's avatar
      vpx_scale: sync from experimental · 9e06601d
      John Koleszar authored
      Import changes made on the experimental branch in preparation for
      merging the two branches.
      
      Change-Id: I7b5b8fb4fca155cb1d72e7ba13eef18e6a94a298
      9e06601d
    • John Koleszar's avatar
      vpx_scale: sync from master · 06f3e51d
      John Koleszar authored
      Update vpx_scale from current code in master, run style transform, fix
      lint warnings.
      
      Change-Id: I47eadeb5b6881d448ea3728537f9b8a5b5aac78e
      06f3e51d
  26. 17 Jul, 2012 1 commit
  27. 04 May, 2012 1 commit
    • Attila Nagy's avatar
      Make global data const · f039a85f
      Attila Nagy authored
      Removes all runtime initialization of global data. This commit is a
      squashed version of the following series cherry-picked from master.
      This is necessary because of a change that was merged to the tester
      that depends on the scaler being moved to the RTCD framework, which
      is a worthwhile thing to include in Eider anyway.
      
        - a91b42f0 Makes all global data in entropy.c const
        - b35a0db0 Makes all global data in tokenize.c const
        - 441cac8e Makes all mode token tables const
        - 5948a021 Ports vpx_xcaler to new RTCD method
        - 317d4244 Makes all mode token tables const part 2
      
      Change-Id: Ifeaea24df2b731e7c509fa6c6ef6891a374afc26
      f039a85f
  28. 19 Apr, 2012 1 commit
    • Attila Nagy's avatar
      Ports vpx_xcaler to new RTCD method · 5948a021
      Attila Nagy authored
      We can get rid of all remaining global initializers now:
       vp8_scale_machine_specific_config()
       vp8_initialize()
       vp8dx_initialize()
      
      Change-Id: I2825cea5d1c01ad9f6c45df49a0f86d803bfeb69
      5948a021
  29. 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
  30. 24 Feb, 2012 1 commit
    • Paul Wilkins's avatar
      Code Simplification. · 69e80a02
      Paul Wilkins authored
      Removal of code relating to spatial re sampling
      
      Change-Id: Iff1bc651c62cd528f960c4b27f9673b172e68835
      69e80a02
  31. 06 Jan, 2012 1 commit
  32. 24 Oct, 2011 1 commit
    • Johann's avatar
      Fix incorrect pointer definition · 062864f4
      Johann authored
      Global function pointers can not be defined in header files. Restructure
      vpx_scale pointer configuration.
      
      Change-Id: I6f568a263ad770d32f530abad6007f990fd1003a
      062864f4
  33. 20 Oct, 2011 1 commit
    • Johann's avatar
      Don't copy borders for loop_filter_pick · 7cdc986c
      Johann authored
      During the _pick only the Y plane is examined. In addition, data beyond
      the borders of the frame is not read.
      
      Change-Id: Ic549adfca70fc6e0b55f8aab0efe81f0afac89f9
      7cdc986c
  34. 22 Sep, 2011 1 commit
  35. 20 Jul, 2011 1 commit
    • Timothy B. Terriberry's avatar
      Increase chrow row alignment to 16 bytes. · 7d1b37cd
      Timothy B. Terriberry authored
      This is done by expanding luma row to 32-byte alignment, since
       there is currently a bunch of code that assumes that
       uv_stride == y_stride/2 (see, for example, vp8/common/postproc.c,
       common/reconinter.c, common/arm/neon/recon16x16mb_neon.asm,
       encoder/temporal_filter.c, and possibly others; I haven't done a
       full audit).
      It also uses replaces the hardcoded border of 16 in a number of
       encoder buffers with VP8BORDERINPIXELS (currently 32), as the
       chroma rows start at an offset of border/2.
      Together, these two changes have the nice advantage that simply
       dumping the frame memory as a contiguous blob produces a valid,
       if padded, image.
      
      Change-Id: Iaf5ea722ae5c82d5daa50f6e2dade9de753f1003
      7d1b37cd