AV1 itself is royalty-free but it relies on other patents which aren't. Sisvel sells a license bundle of 1000+ patents[1] (called a “patent pool”) that enables

AV1 itself is royalty-free but it relies on other patents which aren't. Sisvel sells a license bundle of 1000+ patents[1] (called a “patent pool”) that enables you to use AV1 without an army of lawyers. [1] https://www.sisvel.com/images/documents/Video-Coding-Platform/PatentList_AV1.pdf https://www.sisvel.com/images/documents/Video-Coding-Platfor...