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Cake day: August 15th, 2023

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  • I use VBR and adjust the quality slider until I cannot see artifacts. I don’t do anything particularly special and maybe there’s more that could be done.

    I once heard of an approach where you remove all grain and reapply it live to reduce the bitrate. That sounds interesting but denoising usually results in quality loss and it will likely look pretty artificial. My tooling also does not support it, so I’ve not bothered.

    If someone can recommend me a good encoder or tool I can try that is better than whatever comes with handbrake I’m happy to give it a go.


  • Having tried AV1, I found that it was worse than h265 for what I use it for: high quality movie encodes.

    It doesn’t preserve grain well, and if struggles with maintaining quality in low light scenes.

    On top of all of this it tends to be more CPU intensive than h265.

    For this testing, I used Handbrakes CPU encoder.

    I realise that this is maybe not what AV1 is intended for. It’s probably best suited to making low bitrate streams more tolerable. Maybe AV2 will be better 🤷



















  • Armand1@lemmy.worldtoPrivacy@lemmy.mlThe founder of /e/os is anti-security
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    29 days ago

    The full translation of the clip of Gaël Duval provided by GrapheneOS:

    There’s the attack surface, on that front we’re not security specialists here, so I couldn’t answer you precisely, but from the discussions I’ve had, it seems that everything we do reduces attack surface.

    However, we don’t have a “hardened security” approach, we aren’t developing a phone for pedo(censored) so they can evade justice. So there aren’t difficult things to check if the memory is corrupted, really hardened security stuff that could clearly be useful for executives, in the secret service, or whatever.

    That’s not our goal, our goal is to start from an observation: today our personal data is constantly being plundered and that wouldn’t be legal in real life with the mail or the telephone, we want to change that. So we are making you a product that changes that by default for anyone.

    As a french speaker, I can attest that the translation is fairly accurate.

    While I don’t agree with the characterisation Gaël Duval makes here, I believe the statement from GrapheneOS here:

    Duval and his organizations have consistently taken a stance against protecting users from exploits. In this video, he once again claims protecting against exploits is for only useful pedophiles and spies.

    Is a bit disingenuous. It sounds like they do make some efforts to secure their device, but it’s not their main focus. Theirs is to improve privacy first and foremost.

    I would take anything GrapheneOS devs says with a grain of salt, as we all know that they have quite an adversarial relationship with… well… everyone. But especially other OS makers.