1. 17 Jun, 2017 1 commit
  2. 16 Jun, 2017 4 commits
  3. 13 Jun, 2017 1 commit
    • Zoe Liu's avatar
      Add encoder/decoder pipeline to support single ref comp modes · 85b66463
      Zoe Liu authored
      Now the single ref comp mode should work with WEDGE and
      COMPOUND_SEGMENT. For motion_var, the OBMC_CAUSAL mode uses the 2nd
      predictor if the neighboring block is single ref comp mode predicted.
      
      This patch removes the mode of SR_NEAREST_NEWMV and leaves four
      single ref comp modes in total:
      
      SR_NEAREST_NEARMV
      SR_NEAR_NEWMV
      SR_ZERO_NEWMV
      SR_NEW_NEWMV
      
      Change-Id: If6140455771f0f1a3b947766eccf82f23cc6b67a
      85b66463
  4. 12 Jun, 2017 1 commit
    • Zoe Liu's avatar
      Add encoder/decoder support for var-refs · 7b1ec7a9
      Zoe Liu authored
      Check the availability of the reference frames at the frame level at
      both encoder and decoder, and if a reference frame is not available
      for a specific video frame, remove the signaling of such reference
      frame info at the block level.
      
      This patch adds the consideration of the bit saving inside the RD
      optimization loop.
      
      Change-Id: I4c22f1b843b21c7d2b47e118c99c3ad615a3d4e4
      7b1ec7a9
  5. 07 Jun, 2017 1 commit
  6. 06 Jun, 2017 1 commit
    • Alex Converse's avatar
      intrabc: Elide subpel bits · 6b2584c6
      Alex Converse authored
      objective-1-fast 1st KF: -0.04 BDRATE-PSNR
      twitch-1 1st KF: -0.04 BDRATE-PSNR
      
      Change-Id: I74e8e43278a3d228f9b0a9af014e69f80aa90a0f
      6b2584c6
  7. 02 Jun, 2017 1 commit
    • Alex Converse's avatar
      intrabc: adapt use_intrabc prob · 7c412ea4
      Alex Converse authored
      First keyframe BD-RATE objective-1-fast:
         PSNR | PSNR Cb | PSNR Cr | PSNR HVS |    SSIM | MS SSIM | CIEDE 2000
      -0.3705 | -0.3232 | -0.3812 |  -0.3782 |     N/A | -0.3412 |        N/A
      
      First keyframe BD-RATE twitch-1:
         PSNR | PSNR Cb | PSNR Cr | PSNR HVS |    SSIM | MS SSIM | CIEDE 2000
      -0.2479 | -0.2477 | -0.2467 |  -0.2567 | -0.2486 | -0.2508 |    -0.2487
      
      
      
      Change-Id: Iea6c895c6fe9e9764887a8968f6e5330903969d3
      7c412ea4
  8. 01 Jun, 2017 2 commits
  9. 31 May, 2017 1 commit
    • Jingning Han's avatar
      Rework txfm_above and txfm_left context offset · 331662e9
      Jingning Han authored
      Make the txfm_above and txfm_left be processed in the unit of
      miniumum transform block size. Scale the transform block step
      size with respect to the mode_info step size.
      
      Change-Id: Iee4421e005db742cd4ff7899215560063e5f68e5
      331662e9
  10. 29 May, 2017 1 commit
  11. 26 May, 2017 1 commit
  12. 25 May, 2017 5 commits
  13. 24 May, 2017 2 commits
  14. 23 May, 2017 1 commit
  15. 20 May, 2017 1 commit
  16. 19 May, 2017 1 commit
  17. 18 May, 2017 1 commit
  18. 17 May, 2017 1 commit
  19. 16 May, 2017 1 commit
  20. 15 May, 2017 2 commits
  21. 14 May, 2017 1 commit
  22. 12 May, 2017 1 commit
    • 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
  23. 11 May, 2017 2 commits
  24. 10 May, 2017 1 commit
  25. 09 May, 2017 2 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
  26. 05 May, 2017 2 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
  27. 04 May, 2017 1 commit