1. 20 Nov, 2018 1 commit
  2. 19 Nov, 2018 2 commits
    • Niklas Haas's avatar
      film_grain: implement film grain synthesis · cfa986fe
      Niklas Haas authored
      This is using a slightly adapted version of my GPU-based algorithm. The
      major difference to the algorithm suggested by the spec (and implemented
      in libaom) is that instead of using a line buffer to hold the previous
      row's film grain blocks, we compute each row/block fully independently.
      
      This opens up the door to exploit parallelism in the future, since we
      don't have any left->right or top->down dependency except for the PRNG
      state. (Which we could pre-compute for a massively parallel / GPU
      implementation)
      
      That being said, it's probably somewhat slower than using a line buffer
      for the serial / single CPU case, although most likely not by much
      (since the areas with the most redundant work get progressively smaller,
      down to a single 2x2 square for the worst case).
      cfa986fe
    • Niklas Haas's avatar
      picture: make the film grain metadata public · 20e9f4df
      Niklas Haas authored
      This becomes part of the picture properties, since users may want to
      apply film grain themselves (e.g. for a GPU implementation).
      20e9f4df
  3. 14 Nov, 2018 1 commit
  4. 13 Nov, 2018 1 commit
  5. 12 Nov, 2018 1 commit
  6. 09 Nov, 2018 2 commits
  7. 07 Nov, 2018 1 commit
  8. 06 Nov, 2018 1 commit
    • Ronald S. Bultje's avatar
      Use grouped context setting · e3b5d4d0
      Ronald S. Bultje authored
      Decreases runtime of decoding first 1000 frames of Chimera (1080p, 8bit)
      from 12.227 to 12.075s (average of 6 runs) after changing decode.c, and
      further down to 12.027s (1.67%) with the changes to recon_tmpl.c included.
      After the changes to lf_mask.c, it goes down to 11.842s.
      e3b5d4d0
  9. 04 Nov, 2018 1 commit
  10. 01 Nov, 2018 1 commit
  11. 29 Oct, 2018 1 commit
  12. 28 Oct, 2018 1 commit
  13. 25 Oct, 2018 2 commits
  14. 19 Oct, 2018 2 commits
  15. 03 Oct, 2018 1 commit
  16. 02 Oct, 2018 3 commits
  17. 30 Sep, 2018 1 commit
  18. 29 Sep, 2018 3 commits
  19. 28 Sep, 2018 9 commits
  20. 25 Sep, 2018 3 commits
  21. 24 Sep, 2018 1 commit
  22. 22 Sep, 2018 1 commit