Given that discussion around licensing, what's the licensing story around AV1?

> non-sublicensable, perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable

According to its license which is very short and can be read here:

https://code.videolan.org/videolan/dav1d/-/blob/master/doc/P...

That is the license by the creators but does not mean other companies/individuals won’t claim that it infringes on their patents. So if you adopt it, you’re still likely to be accused of infringing their patents.

That link is confusing, because it's not a license by dav1d creators, but a copy of the official AOMedia license: https://aomedia.org/license/patent-license/

and it's backed by these companies: https://aomedia.org/membership/members/

That's a hypothetical legal issue, not an actual one. Also, the companies involved in AV1 did their best to avoid that pitfall in development and have also shown a willingness to go after patent trolls who might try to pull something.

That's true of every license ever. You can treat it as implied.