Adopting AV1 for Real-Time Communication (RTC) at Scale

What this post added

This post details Meta's adoption of the AV1 video codec for real-time communication (RTC), focusing on the technical challenges and solutions implemented to achieve scale and improve call quality. Key contributions include the development of a low-complexity AV1 encoder preset comparable to H.264/AVC, the selection of the dav1d decoder for its efficiency, and strategies for reducing binary size. It also describes the use of an ML-based device eligibility framework to identify capable Android devices, enabling wider AV1 coverage.