flvstreamer is an open source command-line RTMP client intended to stream audio
or video content from all types of flash or rtmp servers. Forked from rtmpdump
v1.6 with encrypted rtmp and swf verification support removed. 

This tool provides free interoperability with the previously undocumented adobe
RTMP protocol so widely in use on the internet today. It was developed entirely
by reverse engineering methods and without access to any proprietary or
restrictive-license protocol specifications.