1. Introduction
One of the major functions of WebRTC endpoints is the ability to send and receive interactive video. The video might come from a camera, a screen recording, a stored file, or some other source. This specification provides the requirements and considerations for WebRTC applications to send and receive video across a network. It specifies the video processing that is required as well as video codecs and their parameters.
Note that this document only discusses those issues dealing with video-codec handling. Issues that are related to transport of media streams across the network are specified in [WebRTC-RTP-USAGE].