"Real Time Messaging Protocol (RTMP) was initially a proprietary protocol developed by Macromedia for streaming audio, video and data over the Internet, between a Flash player and a server. Macromedia is now owned by Adobe, which has released an incomplete version of the specification of the protocol for public use.The RTMP protocol has multiple variations: The \"plain\" protocol which works on top of and uses TCP port number 1935 by default. RTMPS which is RTMP over a TLS/SSL connection."@en .