1. 13 Feb, 2019 2 commits
  2. 28 Jan, 2019 1 commit
  3. 05 Jan, 2019 1 commit
  4. 13 Dec, 2018 1 commit
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  7. 29 Nov, 2018 1 commit
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  14. 20 Nov, 2018 1 commit
  15. 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
  16. 14 Nov, 2018 1 commit
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  22. 03 Oct, 2018 1 commit
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  24. 30 Sep, 2018 1 commit