Just a stranger trying things.

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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).









  • 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.









  • There is a way to place the secret file (corresponding to the password) on a dedicated USB stick and have a script attempt to Mount it at boot to unlock the partition. If the USB stick is not found, it will revert to the password prompt. Perhaps this is the best of both?

    Make sure not to leave the USB stick plugged in, but rather only take it and and plug it in to boot then safely store it once booted, otherwise you are probably defeating the purpose of having an encrypted partition to begin with.

    I’ll add a link to read more about it shortly.

    Edit: here is one example to set it up (including to auto-decrypt ZFS) https://www.youtube.com/watch?v=7xOLxCwdi-I


  • I was wondering, does anyone know whether usernames are single use? As they can be created and disposed of at will, it feels like a loophole for phishing if someone else can claim a “no longer in use” username? I’m talking about someone using someone else’s previous username.


  • Well yes, but also no.

    Whenever you search for a solution to your problem, it stems from the realization that something is a problem. But sometimes, you have a thing which has been done for a longtime, it was a problem with no solution and you’ve had to accept that. How would you determine one day that things can be done differently and better without constantly reevaluating everything? It’s not realistic.

    In my view, it is a perfectly reasonable question to ask “what problem does waydroid solve?” To figure out if you have that issue and you didn’t know of this solution.

    Sorry, just my 2 cents.