According to the 2016 global media format report published by Encoding.com, Flash only made up six percent of mobile and web video in 2015, down from 21 percent in 2014. The company believes Flash will be completely gone within the next two years. Right now, H.264 is still the leading video codec, making up 72 percent of online videos. But H.264 isn't new, it's been around for 13 years, and the next generation of codecs are starting to pick up steam. WebM — which is royalty-free — is on pace to be the next big video codec, with 12 percent of the market and the leading HTML5 video delivery system for Chrome and Firefox.