This article on the Wowza website provides a quick overview of the VP9 codec: what it is, how it performs, what it costs, and what it’s good for. It concludes with a section on where you should consider deploying VP9 and what you need to know to effectively deploy the codec.
The article is the second in a five-part series that will cover H.264, VP9, HEVC, AV1, and VVC. There are four tables that detail compatibility, performance, royalty status, and suitability for tasks like live, transcoding, HDR.