celt : CELT is a very low delay audio codec designed for high-quality communications. ( http://www.celt-codec.org/ )
ethumb : Thumbnail generation library. ( http://trac.enlightenment.org/e/wiki/Ethumb )
libplayer : Multimedia A/V abstraction layer API. ( http://libplayer.geexbox.org/ )
libspotify : SDK/C language API for Spotify ( https://developer.spotify.com/technologies/libspotify/ )
libvalhalla : A tiny media scanner API. ( http://libvalhalla.geexbox.org/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a dev-zero
For Paludis use this rsync : rsync://gentoo.zugaina.org/dev-zero-portage
If you have a problem : ycarus(-at-)zugaina.org