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Compression! (infosec.pub)

submitted 1 week ago by irelephant@lemmy.dbzer0.com to c/iiiiiiitttttttttttt@programming.dev

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[–] WolfLink@sh.itjust.works 6 points 1 week ago (2 children)

Media files are always thoroughly compressed (except in certain settings like professional video and audio work).

[–] Opisek@piefed.blahaj.zone 1 points 6 days ago (1 children)

I don't see how that relates to encryption.

[–] WolfLink@sh.itjust.works 2 points 6 days ago

It’s more relevant to the previous comment as an example of how we are doing a lot of compression at the filesystem level.

The files that are typically largest are already quite thoroughly compressed.

[–] rainwall@piefed.social 4 points 1 week ago (1 children)

Media files can can benefit from a codec change. Going from h264 to h265/hevc can net a 30-50% reduction in size for almost no quality loss.

The only trade off is increased cpu usage if the client doesnt have hardware h265 support and the time to do the transcoding.

[–] ulterno@programming.dev 3 points 1 week ago

And then comes AV1, with crazily varying quality/compression for different source materials.