In case it helps, the thumbnailer's D-Bus interface is at:
Bus name: com.canonical.Thumbnailer
Path: /com/canonical/Thumbnailer
Interface: com.canonical.Thumbnailer
The method calls pass read-only file descriptors into a shared cache. The only art exposed via this interface at the moment is album and artist artwork, where the result is entirely dependent on the album and artist name passed to the method.
The music-app will need to be able to make calls to this service, but it should also be safe to make it more generally available.
In case it helps, the thumbnailer's D-Bus interface is at:
Bus name: com.canonical. Thumbnailer Thumbnailer Thumbnailer
Path: /com/canonical/
Interface: com.canonical.
The method calls pass read-only file descriptors into a shared cache. The only art exposed via this interface at the moment is album and artist artwork, where the result is entirely dependent on the album and artist name passed to the method.
The music-app will need to be able to make calls to this service, but it should also be safe to make it more generally available.