1) The document discusses responsive video formats and delivery methods for different devices.
2) It covers video codecs like H.264 and VP8, as well as formats like MP4, WebM and OGG.
3) Adaptive streaming technologies like Apple's HLS and MPEG-DASH are presented as ways to deliver the most appropriate video quality based on a user's bandwidth and device capabilities.
38. Media Source Extensions (MSE)
Encrypted Media Extensions (EME)
Web Cryptography API
http://www.w3.org/TR/media-source/
http://www.w3.org/TR/encrypted-media/
http://www.w3.org/TR/WebCryptoAPI/