

To get the perfect selfie please pull your tongue back in your mouth. Good, now close you mouth. Perfect, now lower your phone thirty degree. Great, now lower it thirty degrees more. Almost there! Now lower thirty more degrees and put it the fuck away in your pocket.
Congratulations, you now have the perfect selfie.
No need for AI summary, I found this in two seconds as a web search.
https://getstream.io/glossary/video-codecs/
At any rate, it looks like the AI was pretty accurate this time. Cheers!