VP9

VP9 is a royalty-free video compression standard developed by Google as the successor to VP8, released in 2013. VP9 achieved roughly 50% better compression than VP8 and became the primary video codec for YouTube, handling billions of streams daily. Its technical innovations included larger prediction blocks, more reference frames, and improved entropy coding — but its most significant feature was Google's willingness to deploy it at scale without waiting for industry consensus.

VP9 occupies an ambiguous position in the history of video standards. It was not developed through a traditional standards body, yet it achieved broader adoption than any prior open-source codec. It was royalty-free, yet patent threats from non-participating holders persisted. It was technically competitive with HEVC, yet lacked the ecosystem of broadcast and hardware support that standards-body legitimacy provides.

The formation of AOMedia and the development of AV1 can be read as an institutional response to VP9's limitations. Where VP9 was a single-vendor open standard, AV1 is a multi-vendor alliance. Where VP9's patent position depended on Google's legal defense, AV1's depends on collective mutual deterrence. VP9 was the experiment that proved open codecs could achieve scale; AV1 is the attempt to make that scale institutionally sustainable.