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Cake day: July 1st, 2023

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  • Video codecs mostly work by tracking movement, predicting which pixels will change, and striving to only encode the pixels that actually change or change dramatically. In other words, compression looks for patterns.

    All of that goes out the window when you try to compress static. There are no patterns. It simply can’t be compressed. This isn’t a matter of the algorithms not being good enough. It’s a fundamental limit of information theory.

    Anything fancier amounts to embedding the intro into the compressor as a well-known pattern. And at that point, you’re better off just caching a 4K version of the intro as a standalone video file directly in the app.



  • cbarrick@lemmy.worldtopics@lemmy.worldAccidental Focus
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    4 months ago

    Phone cameras tend to ramp up the saturation.

    It gives the photo a more vibrant look, which many people prefer, at the expense of color accuracy.

    But generally with artistic photography, you’re going more for a style than for accuracy, so I wouldn’t say it’s always a bad thing (though sometimes it is).


  • You don’t need to provide root access just because you used GPL code, you just have to follow the GPL.

    Well, to follow version 3 of the GPL, you do actually need to provide effective root access.

    Specifically, version 3 of the GPL adds language to prevent Tivoization.

    It’s not enough to just provide the user with the code. The user is entitled to the freedom to modify that code and to use their modifications.

    In other words, in addition to providing access to the source code, you must actually provide a mechanism to allow the user to change the code on the device.

    The name “Tivoization” comes from the practice of the company TiVo, which sold set-top boxes based on GPL code, but employed DRM to prevent the user from applying custom patches. V3 of the GPL remedies this bug.