Data communication between demuxers and UIs

I decided to give a shot and try to implement dvb playlist for GUI to allow
users remove/add/rename/group channels. I soon realized that this is
impossible because its not easy to transmit data between libmpdemux/dvbin.c
and GUI.

Now, to solve this problem I was thinking if demuxers would be allowed to
register virtual filesystems for UIs. "Services" would then register mount
points like DVB, HTTP, FTP, CDDA, ... Demuxers would then look for possible
files/streams to play and  list them by the virtual filesystem.

--Aapo Tahkola