These ebuilds come from http://git.overlays.gentoo.org/gitweb/?p=dev/bangert.git;a=summary.
If you have some problems, go to the official site first.
gst123 : gst123 is a flexible CLI player in the spirit of ogg123 and mpg123, based on gstreamer. ( http://space.twc.de/~stefan/gst123.php )
nelly2pcm : Decodes Nellymoser Asao encoded audio in FLV files into WAV ( http://code.google.com/p/nelly2pcm/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a bangert
For Paludis use this rsync : rsync://gentoo.zugaina.org/bangert-portage
If you have a problem : ycarus(-at-)zugaina.org