can anybody explain some details of vlc work process

[mb508]

I want to add some features to vlc, mostly for reliability control. For example when I stream form WEBcam.
Sometimes WEBcam may be disconected for several seconds, but then it reconect again, VLC doesn't continue read and stream from it.

And I want to find place where to insert code for checking this situation.

But thirst, i'll be very happy if somebody explain me typical VLC working process.
I have read all API documentation, but still can't understand folowing things:
1. which thread functions executed when I read from HTTP URL source
2. which threads functions read data from source, parce, demux, ... , mux, send to network
3. how data flow betwin threads


Thanks a lot for your help!
// Sorry for awful English ... I'm doing my best =)