Add support for audio files with cue sheets
Submitted by Carlos Garnacho
gnome-music could be able to handle audio files with cue sheets, where songs themselves are portions of the larger file, with an specified start time and duration.
In this case tracker stores the info like this (very simplified):
gnome-music can generically query for the normal case, and this indirect relationship (because in regular files nie:isStoredAs points to self), and the nfo:audioOffset/duration properties are enough to make it behave as expected with these songs.
I'm attaching a few patches.