rtmpdump is a software to download rtmp:// and rtmpe:// streams.
A media content dumper. rtmpdump is designed to be a small dumper for media content streamed over the RTMP/RTMPE protocol. Supplying an rtmp url will result in a dumped flv file, which can be played/transcoded using ffmpeg/mplayer, etc

The license of this software is Free, you can free download and free use this video utility software.