Just a stranger trying things.

  • 5 Posts
  • 132 Comments
Joined 1 year ago
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Cake day: July 16th, 2023

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  • Exactly, this is about compression. Just imagine a full HD image, 1920x1080, with 8 bits of colors for each of the 3 RGB channels. That would lead to 1920x1080x8x3 = 49 766 400 bits, or roughly 50Mb (or roughly 6MB). This is uncompressed. Now imagine a video, at 24 frames per second (typical for movies), that’s almost 1200 Mb/second. For a 1h30 movie, that would be an immense amount of storage, just compute it :)

    To solve this, movies are compressed (encoded). There are two types, lossless (where the information is exact and no quality loss is resulted) and lossy (where quality is degraded). It is common to use lossy compression because it is what leads to the most storage savings. For a given compression algorithms, the less bandwidth you allow the algorithm, the more it has to sacrifice video quality to meet your requirements. And this is what bitrate is referring to.

    Of note: different compression algorithms are more or less effective at storing data within the same file size. AV1 for instance, will allow for significantly higher video quality than h264, at the same file size (or bitrate).











  • The Witcher 3. It’s not far from being 10, but got a very nice graphics update for free and has 2 DLC. The game and the DLC and the free graphics update and a very recent mod kit, all for around 10-15 USD right now on GOG . it’s a steal! I highly recommend it. It became my favorite game of all time, very fast. And it will offer around 100h, and it will also offer replayability. What is there not to like?

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  • It’s unfortunate the grapheneos community has a bad reputation, but I think the fact that Daniel stepped down and that the project is very committed and ticking all my personal boxes (and more) really keeps me devoted. I wish there were more options of phones, but I have no issue personally with it requiring google pixels as they have convinced me with what seems like rational and well supported arguments. I do wonder if as someone else mentioned, it may be interesting to have a GOS-light for other phones, just to give them a chance to get into GOS and try it out before getting a dedicated phone. It feels like a high barrier to entry, and a limited version may still be better than anything else available to those people? Just a thought.


  • Congratulations on your first steps in GrapheneOS!

    In order to best help you and give relevant suggestions, we need more information of who you are trying to be private from.

    If your threat model is particularly sophisticated, it may be recommended that you do not use a sim card, or at least never when your phone is at home. Instead, exclusively rely on WiFi. It may also involve desoldering your microphone and camera and only make calls using an earpiece.

    These are not recommendations, but simply examples of how far one can go with respect to their threat model. If you would rather want to avoid “regular” spying by google, Facebook and the likes, you may be better off selecting a private DNS (for example Mullvad’s extended DNS which comes with social media filtering https://mullvad.net/en/help/dns-over-https-and-dns-over-tls ). You would need to make sure you do not install Google services (nor microg) and especially no google apps.

    Much more can be said, but we would need specific information about your case to provide better guidance.

    EDIT: I do not want to give the impression that GrapheneOS does not make a good job in improving your situation already. They do! But to do more you would need to justify it with your threat model, that’s what I’m getting at.