LinuxConf.Au: Flumotion: streaming with Python and GStreamer
Flumotion is a GPL streaming media server written in Python. It is distributed and component-based: every step in the streaming process (production, conversion, consumption) can be run inside a separate process on separate machines.
Flumotion uses Twisted and GStreamer. Twisted enables the high-level functionality, distributing components over the network. GStreamer, through the Python bindings, enables the high-speed low-level functionality: actual media processing.
Flumotion uses a central manager process to control the complete network; one or more worker processes distributed over machines to run actual streaming components; and one or more admin clients connecting to the manager to control it.