this post was submitted on 13 Dec 2023

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FFmpeg now has multi-threading (www.phoronix.com)

submitted 11 months ago by Lem453@lemmy.ca to c/jellyfin@lemmy.ml

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This should eventually make it's way into jellyfin. Eager to see the performance improvements.

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[–] scholar@lemmy.world 37 points 11 months ago (2 children)

As far as I'm aware this is only for the cli version of ffmpeg and won't affect the threading of codecs many of which were already multithreaded.

[–] Lmaydev@programming.dev 6 points 11 months ago

It's literally for the CLI yeah.

[–] vynlwombat@lemmy.world 2 points 11 months ago (2 children)

I recently tried figuring out how to build ffmpeg with Nvidia codecs. I'm very new to ffmpeg and codec terminology. How is multithreading for the CLI different than the codecs?

[–] notfromhere@lemmy.one 7 points 11 months ago

My understanding is some parts have to be done sequentially even though the parts themselves are multithreaded, now the different parts can all be done in parallel.

[–] Lmaydev@programming.dev 1 points 10 months ago* (last edited 10 months ago)

Change the main loop and every component (demuxers, decoders, filters, encoders, muxers) to use the previously added transcode scheduler.

The components are what they have parallelised.