Looks like it might be inferred by this:

www.videolan.org/projects/dav1d.html

About

dav1d is a new open-source AV1 decoder developed by the VideoLAN and FFmpeg communities and sponsored by the Alliance for Open Media.

aomedia.org/membership/members/

Founding Members:

• Amazon
• Apple
• Cisco
• Google
• [etc]

It is good that Google is acknowledging that a decoder made by someone else is better than their own by switching to it though.