If the file is a real url (with urlencoded chars) then use
efreet_uri_decode to decode the uri and use the decoded
string in place of the raw file in window title and playlist items
use albumart if already cached/found for video list thumbs for known
music files... at least until a video frame is decoded.
this allows you to see the video playlisty live, select items from it,
scroll around and have full live paying previews in the list