Tvheadend

Morning

i'm currently building a webapp for tvh - some kind of drag'n'drop-channelcreator - and i wonder how the UIDs are built (looks like a hash of something).
thanks to the json-api i managed to convert the filestructure to a mysql-db, but currently i'm looking for a way to generalize it a bit more.

so i'd be glad if anyone could tell me, what has been hashed there - and how... (i found the uuid.c file, but it does not help me that much, C is something like chinese for me ;))

thanks