[Icecast] metadata 2

[Geoff Shang]

Hi,

If you want to do this in realtime, it's probably going to be easiest done 
at the source end.

If it doesn't need to be realtime exactly, you could parse the playlist 
log after configuring it.

Unfortunately, Icecast doesn't have an event handler for metadata updates 
like it does for stream connect and disconnect, otherwise you could 
trigger something when the metadata updates.  You could query periodically 
for the metadata but you'd need to do it often enough not to miss tracks 
and be able to know if a track has already been seen.

Geoff.