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Fast video converter for Linux? (lemmy.ca)

submitted 2 weeks ago by Showroom7561@lemmy.ca to c/foss@beehaw.org

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Context: I'm currently using an older Samsung phone to convert h264 dashcam videos to HEVC/h265 to save space. These are many, 10 minute long videos, and the process is incredibly labour intensive, since I have to do each one manually.

The conversion itself is really fast (maybe 2-3 minutes), and the results are excellent (usually half the size with the same quality).

Question: Is there software for Linux that can convert at similar speeds, preferably batched? Handbreak has been incredibly slow.

Caveat: I'm using a Framework 13 (11th gen Intel) laptop with an Intel integrated graphics card, so I can't really leverage that in the same way a dedicated GPU can be. But still, I can only imagine that my laptop should be able to outperform my super old phone! LOL

I'm not really looking to compress the videos (I've experimented, and the quality loss from an already "poor" source just doesn't cut it). HEVC/h265 conversion would be ideal.

Is there anything else I can try?

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[–] solrize@lemmy.ml 18 points 2 weeks ago (2 children)

Everyone uses ffmpeg for this and Handbrake probably uses it also. I do most of my own conversions on a cheap dedicated server so it's not a big deal if it takes a while, but yeah, h265 is slow.

[–] GammaGames@beehaw.org 5 points 2 weeks ago

It does, handbrake is a fantastic piece of software

[–] Showroom7561@lemmy.ca 1 points 2 weeks ago (1 children)

Handbreak is really slow, though. For context, in the time it takes handbreak to convert one of these videos, I would have done like 5 or 6 on my smartphone.

Batch conversion is great, though. I just need it to be done in less than an entire day. 😢

[–] MangoPenguin@lemmy.blahaj.zone 7 points 2 weeks ago (1 children)

Did you set it up to use Intel Quicksync? If you're using CPU only it's going to be insanely slow.

so I can’t really leverage that in the same way a dedicated GPU can be.

You can, and Intel Quicksync is often better than a dedicated GPU for transcoding video.

[–] Showroom7561@lemmy.ca 3 points 2 weeks ago (1 children)

Ok, you absolutely set me on the right path! I didn't realize that in Linux (using Flatpak Handbrake), I needed a separate plugin for Quicksync.

I've been running tests, and tweaking the profiles, but goddamn is it fast now! Faster than when I was using it in Windows.

Thank you!

[–] MangoPenguin@lemmy.blahaj.zone 2 points 2 weeks ago (1 children)

Awesome! It definitely makes a huge difference, and the quality on 11th gen Intel should be nearly as good as CPU transcoding.

[–] Showroom7561@lemmy.ca 3 points 2 weeks ago

And using the app "Identity" (also a Flatpak), comparing the quality differences is suuuuper easy!

Goddamn, I love FOSS!