Thread:Talk:Search/search by mimetype/filetype?

I suspect this isn't quite the right place to ask it; feel free to point me at the right component in Bugzilla if not. But here goes: it should be possible to do something equivalent to Google's filetype: operator, at least on Commons. There are times when you want video; times when you want audio; etc., etc. So it'd be really nice to provide that :)