RTMP

RTMP (Real Time Messaging Protocol) is protocol for transmiting video content in real time over the internet. It is not the only way to share a video signal with a streaming host, but it is the most common by far. In order to make an RTMP connection you typically need at least a server address (URL) and a stream key, however some servers also require a username and password to connect. All of these are provided by the streaming host.