[FFmpeg-user] rav1e encoding only using one core

Edward Park kumowoon1025 at gmail.com
Fri Sep 11 17:06:56 EEST 2020

> I'm playing around with rav1e and noticed in my first test that only one
> core is used of the 8 (16 virtual) I have. I tried with and without
> -threads setting. Since most other codecs behave this way I was expecting
> it to use as many cores as possible if not constrained by the command line.

Unfortunately rav1e will disappoint you at the moment, as far as parallel encoding goes.
I don't know if most other codecs can be said to scale as well as you say, different codecs serve different different purposes, recent ones centered around consistent real-time performance will use the dozens of cores available in workstations nowadays, but most hit the cap pretty soon depending on config.

Ted Park

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