: Which compression formats (e.g., H.264, VP8) are supported ( a=rtpmap ). How it Works (Offer/Answer Model) Systems use an Offer/Answer model to connect: The Secret Protocol Making Video Calls Work | SDP in WebRTC
: Specifies when the session is active ( t= ). SDP.mp4
An SDP message consists of several lines of text in the format = . A typical file or message contains three main sections: : Which compression formats (e