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  1. 12 May, 2017 2 commits
    • hui su's avatar
      Palette: use color cache to compress base colors · 33567b21
      hui su authored 
      Get a list of palette base colors that are used in the above and
left blocks, referred to as "color cache". For each cache color,
signal if it is present in current block's palette, so that we
don't need to transmit their raw values.

When palette-delta-encoding is enabled, compression is improved
by 2% on keyframe and 1% overall for the screen_content testset.

Change-Id: I4cb027f1904aa9d0ab1c8f00ea9ee34bf5f16234
      33567b21
    • Luc Trudeau's avatar
      [CFL] Check for uninitialized signs · f436b12e
      Luc Trudeau authored 
      To avoid writting out uninitialized signs for CfL alpha, checks are
added in the write_cfl_alphas function.

Change-Id: I832875e496a6318132c82bc1e5406dc95ae9c055
      f436b12e
  3. 11 May, 2017 3 commits
  5. 10 May, 2017 2 commits
  7. 09 May, 2017 3 commits
    • Alex Converse's avatar
      intrabc: Allow ext_tx transforms · daa15e4e
      Alex Converse authored 
      objective-1-fast results:

sequence       PSNR    PSNR HVS    SSIM    CIEDE   APSNR   MS SSIM VMAF
average        -0.02    0.01       -0.02   -0.03   -0.02    0.00    0.06
1080p           0.02    0.01        0.03    0.00    0.01    0.02    0.09
1080p-screen   -0.32   -0.28       -0.32   -0.44   -0.31   -0.27    0.00
360p            0.06    0.14        0.10    0.10    0.08    0.11    0.22
720p            0.00    0.04       -0.05    0.01    0.00   -0.01   -0.10
wikipedia_420  -1.04   -0.95       -1.05   -1.30   -1.03   -0.88   -0.29

Change-Id: I30ce8a869daf1c3ed539ffed552786cbb785e7d0
      daa15e4e
    • Luc Trudeau's avatar
      [CFL] Support for skip_chroma_rd in CB4X4 · 2c317905
      Luc Trudeau authored 
      CFL is disabled when skip_chroma_rd is enabled. This is done by reusing
the logic in CB4X4. To facilitate integration, the skip logic used in CfL is
moved inside the read/write functions.

Results on Subset1:
master@2017-05-08T19:54:48.196Z -> cfl_baseline@2017-05-08T20:06:55.292Z
  PSNR |  PSNR Cb |  PSNR Cr | PSNR HVS |   SSIM | MS SSIM | CIEDE 2000
0.2668 | -12.0951 | -10.4138 |   0.3095 | 0.2998 |  0.2831 |    -3.6579
https://arewecompressedyet.com/?job=master%402017-05-08T19%3A54%3A48.196Z&job=cfl_baseline%402017-05-08T20%3A06%3A55.292Z

Change-Id: I45644baa1aceef5ad4da3332fcb10f3fbaac052b
      2c317905
    • Fangwen Fu's avatar
      Make tile dependency experiment work with ext tile. · 70bcb89b
      Fangwen Fu authored 
      * Add tile dependency support when ext tile enabled.

Change-Id: I8fe40adf285e171b5b761b15590a8b1c6758b8f7
      70bcb89b
  9. 08 May, 2017 1 commit
  11. 05 May, 2017 3 commits
    • Luc Trudeau's avatar
      [CFL] Alpha signaling · f533400a
      Luc Trudeau authored 
      Writes and reads alpha to and from the bitstream.

A special case is needed on the encoder side to handle prediction block
skips. Since whether or not a prediction block is skipped during CfL, a
rollback is required if the block was skipped and the alpha index was
not zero. The advantage of this is that no signaling is required when
the prediction block is skipped as it is assumed tha the alpha index is
zero.

A encode facade is added to the intra prediction facade as CfL requires
special encoder side operations.

Change-Id: Ic3b11d0fdbd51389d862112eb09d8785127a6b06
      f533400a
    • Sebastien Alaiwan's avatar
      Merge ref-mv into codebase · e140c508
      Sebastien Alaiwan authored 
      Change-Id: I96e386678f6227f3ca735c9be2725cb9795b3296
      e140c508
    • Jingning Han's avatar
      Fix compiler warnings on config_subframe_prob_update · 911c964a
      Jingning Han authored 
      Remove the unused codes under the experimental flag.

Change-Id: I4e1c176d13a58f6677f32d52bbfaa7f0aad4249d
      911c964a
  13. 04 May, 2017 2 commits
  15. 03 May, 2017 4 commits
  17. 02 May, 2017 1 commit
  19. 29 Apr, 2017 1 commit
  21. 27 Apr, 2017 3 commits
  23. 26 Apr, 2017 5 commits
  25. 25 Apr, 2017 1 commit
    • Fangwen Fu's avatar
      Extend delta q to have delta lf · 231fe424
      Fangwen Fu authored 
      This is the second patch.
* Add delta loop filter level at super block level.
* Add symbol coding for delta lf syntax
* Allow delta lf to work with segments

Change-Id: I393a021a875d03c6e113127cbb3543fc077308e4
      231fe424
  27. 24 Apr, 2017 4 commits
  29. 22 Apr, 2017 1 commit
  31. 21 Apr, 2017 1 commit
  33. 20 Apr, 2017 3 commits
    • Zoe Liu's avatar
      Enable ext-refs as default · 6eeea0e8
      Zoe Liu authored 
      Fixed a couple of compiling warnings when the "deep" analyzer is on.

Change-Id: I96842e8226f1993a1329217c0dbf4a081d0c94f9
      6eeea0e8
    • Alex Converse's avatar
      intrabc: Add initial skeleton · 28744309
      Alex Converse authored 
      Missing features:
* RDOPT (Forced on for certain blocks)
* Any form of border extension
* Non MI sized right and bottom edges
* MV prediction

Present features:
* Force intrabc for some blocks
* Carry intrabc in the bitstream
* Validate DV is causal
* Reconstruct intrabc block assuming border extension is unnecessary

Change-Id: Ib1f6868e89bfacc2a4edfc876485bad1b347263b
      28744309
    • David Barker's avatar
      Harmonize ext-inter and ref-mv · 3dfba994
      David Barker authored 
      This changes the behavior of the ext-inter compound modes
as follows:
* NEAREST_NEARESTMV, NEAR_NEARMV, NEW_NEWMV, ZERO_ZEROMV
  work the same as the corresponding compound modes without
  ext-inter
* NEAREST_NEWMV and NEW_NEARESTMV keep their current behavior,
  which is to use the first ref-mv candidate pair for their
  particular reference frames
* NEAR_NEWMV and NEW_NEARMV select between the second, third,
  and fourth candidate pairs.
* NEAREST_NEARMV and NEAR_NEARESTMV use the first candidate
  pair for the NEAREST component and the second, third, or
  fourth candidate pair for the NEAR component.

Also do some minor refactoring and fix compile errors
with --enable-ext-inter --disable-ref-mv

Change-Id: If0d2a60559083b7c1189909d426b705af42d2d0e
      3dfba994