Real Time Messaging Protocol (RTMP) for broadcasting FLV, MP4 video and MP3 audio

Real Time Messaging Protocol (RTMP) is a proprietary protocol developed by Adobe Systems for streaming audio, video and data over the Internet, between a Flash player and a server.

RTMP protocol is used by many well known web-sites such as MTV, VH1, Hulu, BBC.

Most popular open source audio/video players and tools currently do NOT support RTMP (they can't play RTMP audio and video streams or download them).

About RTMP protocol:

RTMP protocol at Wikipedia
RTMP open source, RTMP protocol and RTMP protocol [Open Source Flash]
AMF object spec - describes a format of data objects passed inside RTMP connection [Open Source Flash]
RTMP protocol [Gnash Project wiki]
RTMP/AMF/SOL [Gnash Project wiki]
RTMP protocol flavours - lists various flavours of the protocol: RTMP, RTMPT, RTMPS, MRTMP, …
RTMP protocol, handling and downloading [Zen of Linux]
RTMP protocol [rtmpd]
RTMP protocol [RTMPy wiki]
RTMP protocol [multimedia.cx wiki]
RTMPT [joachim-bauch.de]

Downloading RTMP streams (open and closed source software, freeware and shareware):

RTMP Flash stream recorders (All-streaming-media.com)
How to tutorials on recording RTMP flash streams (Stream-Recorder.com)

Streaming servers supporting RTMP protocol:

Adobe Flash Media Server
Red5 (freeware / Windows, Linux, Mac)
Wowza Media Server
Gnash - has a partial and experimental implementations of RTMP. Gnash has both client and server, sharing the same common source.
haxeVideo is a server implementation of RTMP in Haxe.
crtmpserver
Mammoth - formerly known as OpenFMS
RubyIzumi is an implementation of an RTMP server in Ruby.

Streaming servers supporting "secure" RTMPE protocol:

Adobe Flash Media Server
Wowza Media Server
crtmpserver - a server implementation of RTMP that has implemented (as of 25th may 2009) the RTMPE protocol.
Mammoth - formerly known as OpenFMS, is a server implementation that has implemented an RTMPE-compatible algorithm

RTMP Libraries:

RTMPy [Python, MIT license] is a Twisted protocol for RTMP. The python project rtmpy aims to be a free software implementation of an RTMP library, whilst Tape intends to be a full streaming server (in Python).
RTMP library [C++, GPLv2] from XBMC media player. libRTMP by boxee contains an RTMP client library, and was used as
the basis for rtmpdump.

Real Time Messaging Protocol (RTMP) for broadcasting FLV, MP4 video and MP3 audio

Real Time Messaging Protocol (RTMP) for broadcasting FLV, MP4 video and MP3 audio

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