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arch1t3cht

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About arch1t3cht

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Recent public activity

  1. story
  2. comment
    Comment #47426794

    Analytic number theory exists and involves calculus, but it's not what the linked post is about. The article talks about Hensel's lemma, which is a purely algebraic statement with …

  3. comment
    Comment #46615409

    A lot of the pain of GitHub Actions gets much better using tools like action-tmate: https://github.com/mxschmitt/action-tmate As soon as I need more than two tries to get some work…

  4. comment
    Comment #46477174

    The core idea of YCbCr - decoupling chrominance and luminance information - definitely has merit, but the fact that we are still using YCbCr specifically is definitely for historic…

  5. comment
    Comment #46476994

    This may just be because mpv has higher-quality default settings for scaling and tonemapping. Try mpv with profile=fast, maybe. To properly compare mpv's and VLC's performance you'…

  6. comment
    Comment #46475334

    Thanks for bringing this up, since I'm realizing that I did not explicitly spell this out in the post. I'll add a paragraph making this even clearer.

  7. comment
    Comment #46475313

    Thanks for the "encoder/decoder" correction. But yes, as the other reply says, I am aware of this distinction, and I make a point not to use the word "codec" at any other point in …

  8. comment
    Comment #46475231

    libav{format,codec,...} are just libraries for demuxing and decoding video. There is huge variability in how those libraries are used, let alone how the video is displayed (which n…

  9. comment
    Comment #46475212

    One difference I can immediately point to is that VLC always renders subtitles at the video's storage resolution and then up/downscales all bitmaps returned by libass individually …

  10. comment
    Comment #46475191

    Note that, while I haven't had time to investigate them myself yet, IINA is known to have problems with color spaces (and also uses libmpv, which is quite limited at the moment and…

  11. comment
    Comment #46475154

    Original post author here. It seems like the main criticisms I am getting for this article are because it's escaped past its main target audience, so let me clarify a few things. T…

  12. comment
    Comment #46475018

    HDR is nothing more than metadata about the color spaces. The way the underlying pixel data is encoded does not change. HDR consists of 1. A larger color space, allowing for more c…

  13. comment
    Comment #42182658

    ogg is a container format, not a coding format.

  14. comment
    Comment #41281467

    Admittedly I have not, but I did search for and find similar issues on their github before making this comment, and I do plan to investigate this more one day and possibly make a p…

  15. comment
    Comment #41278351

    IINA has various issues that mpv does not have, in particular with color space conversions (see https://news.ycombinator.com/item?id=41278331 for a few more details)

  16. comment
    Comment #41278331

    IINA has issues with color space conversions. I've heard that the specific issue is that it always (incorrectly) assumes a BT601 matrix for all videos, though I haven't verified it…