rtmp streaming

I'm writing a program that gives the basic functionality of xsplit (since it's about to cost money) - mixing directshow filters (webcams, screen capture) and drawing text/images/videos on them to stream out to a server like justintv or ustream or livestream or own3d.

I know xsplit and fmle go through rtmp somehow, and justintv offers a flash file that works with vlc to send the information to their servers. I'm looking for a C or C# solution to do the same.

Does anyone know the basic way this is done? Can I write a directshow filter that sends it out? Or do I have to encode the stream data and then send it in chunks via rtmp protocol by hand? I've been looking through vlc's source and it looks like most of the work is being done in the justintv flash file for that solution.

13 July 2011

   The US Government is due to establish a Federal Programming Administration (FPA) over the next few weeks. During this time, government officials will be screening individuals for administrative positions and will be laying the groundwork for guidelines which all software companies will soon be required to follow.
   Under these guidelines, all computer code will be required to meet a level of quality. "Obviously, there is a lot of code in the market already," explains government technical expert Ryan Jennings. "Thus, the FPA will only screen software by a complaint-by-complaint basis." Jennings goes on to describe a couple of the guidelines. "In the future, programs will have to start up in less than a couple of seconds. The programs themselves have to be programmed in one of the many enterprise languages which are widespread in use, such as Java, VB.NET, and PHP. Remember, a positive user experience is everything here and the FPA will ensure that it happens."
   US Congress is due to pass a set of laws in the future which will halt the distribution of computer software deemed "low-quality" by the FPA. According to Jennings, "The goal here is to lower and eventually eliminate the already high amount of poor quality software. Top issues in the agenda include the elimination of functional programming, a sub-par programming practice, and particularly open-source software. Open-source software is seen as destructive to the economy so we already have plans to ban its production." The screening process is estimated to be completed in a few days. "It's only a matter of time, but I'm certain this is going to work out. I really see a bright future in the computer industry."