These ebuilds come from http://farragut.flameeyes.is-a-geek.org.
If you have some problems, go to the official site first.
a52dec : library for decoding ATSC A/52 streams used in DVD ( http://liba52.sourceforge.net/ )
demac : Free Monkey's Audio decoder ( http://www.rockbox.org/tracker/task/7256 )
flac : free lossless audio encoder and decoder ( http://flac.sourceforge.net )
giflib : Library to handle, display and manipulate GIF images ( http://sourceforge.net/projects/giflib/ )
libmpcdec : Musepack decoder library ( http://www.musepack.net )
libpng : Portable Network Graphics library ( http://www.libpng.org/ )
libtheora : The Theora Video Compression Codec ( http://www.theora.org )
libvorbis : the Ogg Vorbis sound file format library ( http://xiph.org/vorbis )
speex : Audio compression format designed for speech. ( http://www.speex.org )
xine-lib : Core libraries for Xine movie player ( http://xine.sourceforge.net )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a zugaina
For Paludis use this rsync : rsync://gentoo.zugaina.org/zugaina-portage
If you have a problem : ycarus(-at-)zugaina.org