cheese : A cheesy program to take pictures and videos from your webcam ( http://projects.gnome.org/cheese/ )
ffmpeg : Complete solution to record, convert and stream audio and video. Includes libavcodec ( http://ffmpeg.org/ )
gnome-mplayer : A GTK+ interface to MPlayer ( http://code.google.com/p/gnome-mplayer/ )
gnome-subtitles : Video subtitling for the Gnome desktop ( http://gnome-subtitles.sourceforge.net/ )
rtmpdump : Open source command-line RTMP client intended to stream audio or video flash content ( http://rtmpdump.mplayerhq.hu/ )
transmageddon : Video transcoder built using GStreamer ( http://www.linuxrising.org/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a gentoo-playground
For Paludis use this rsync : rsync://gentoo.zugaina.org/gentoo-playground-portage
If you have a problem : ycarus(-at-)zugaina.org