Media Source Extensions™ is a W3C Recommendation

The HTML Media Extensions Working Group has published a W3C Recommendation for Media Source Extensions™. This specification fulfills a vital part of putting video on the Web by extending the HTML5 video capabilities and facilitating a variety of use cases like adaptive streaming, time shifting and video editing, as well as 360° video players. Flexible and powerful, Media Source Extensions™ provides commercial quality IP streaming video for Web applications, across different platforms and between unrelated companies, and is already deployed in major browsers and video services, such as Youtube.