Live streaming using iPhone and saving the video

What technology is used for live 开发者_如何学JAVA streaming of video from iPhone cam to a distant server.

I want to show live streaming as well as save the video, once it gets finished.

The way its being done right now is by capturing the frames as the movie is taken (right now its being done through a screenshot private api, but now with 4.0 u can grab the frame of videos a better way, cant discuss that right now tho), then take some number of frames, encode them using ffmpeg or some ohter encoding library, send the video chunks to your server and live stream them using the live http streaming...thats a birdeye view of how its being done..hope it helps