[benwaggoner]

Originally Posted by Jamaika

For me these are abandoned projects.
https://github.com/xiph/theora Oct 27, 2020
https://github.com/xiph/ogg Apr 21, 2022
https://github.com/xiph/vorbis May 12, 2021

ffmpeg -i london_eye.mov -s 1920x1080 -c:v libtheora -q:v 10 -c:a libvorbis -q:a 10 output.ogv
[ogg @ 000001e0f458c930] Broken file, non-keyframe not correctly marked.

Yeah, Opus has been the most important and competitive Xiph codec for a number of years. It's very nicely designed, and pioneered hybrid speech/general coding years before xHE-AAC. Really good quality @ bitrate from telephony up to perceptually lossless.