This is a python implementation of the Flash RTMP server with minimal support needed for real-time streaming and recording using AMF0.

Advanced application service such as shared object or web API are outside the scope. The goal is to use existing protocols and tools such as web servers as much as possible (API, progressive download). Another objective is to keep the size small so that one can use it locally on a client machine instead of hosting on a remote server.

Our white paper on Flash based audio and video communication in the cloud describes the benefits and problems of using Flash Player for communication, describes the motivation and overview of Flash VideoIO API, shows how to build various application scenarios with the API, compares various architecture and API options for interoperability between Flash Player and SIP/RTP, and describes our SIP-RTMP message flow, session negotiation, media transport and media format in detail.

The project was started and most of the work was done in 2007. More recently I wrote example test application and finished the server part to make it complete. If you are interested in contributing, feel free to send me a patch with your changes. If you plan to use this software in your project or want to contribute significantly in this project or its features, feel free to send me a note to the support group. You don't need to subscribe to that group to post a message. I look forward to hearing from you!

There are other open-source RTMP servers available such as rtmpy.org and osflash.org/red5. My implementation is different because it does not use the complex Twisted library as in rtmpy.org and it is pure Python based couple of files instead of hundreds of Java files of Red5. I did use AMF parsing from rtmpy.org though. Secondly my project is a much simpler version of a full Red5 server and useful only for dealing with real-time media and doesn't implement shared object or web server style applications.

The software is open source under GNU Public License (GPL). If the viral nature of GPL is not suitable for your deployment, we also sell low cost alternative commercial license. In particular, the alternative commercial license allows you to combine pieces of our software with your other proprietary elements.

Notice: The owners of the project reserve all the rights to source code. All the contributors and committers automatically and implicitly assign all the rights to the owners by contributing to this project. The rights assignment implies that the owners reserve all the rights to publish or distribute the sources or binaries elsewhere under another license for commercial or non-commercial use. Irrespective of the rights, this project will continue to remain open source.

(Aug 2009): "I tried your RTMP-SIP gateway this afternoon. It's pretty neat. Awesome. Great job. I like it more than the Red5 project. It's a very good idea to implement it with python and it's lightweight and better integrate with ..."

(Nov 2009): "I was looking for a lightweight rtmp server and tried out your server at http://code.google.com/p/siprtmp/ and it seems to have been running quite well. Hats off to you. ... Thanks for the great lightweight server."

If you have any feedback, criticism or comment on siprtmp or rtmplite, feel free to send them to support group. You don't need to subscribe to that group to post a message.