The plugins which use a GPL library are as follows:
cdparanoia libcdparanoia (http://www.xiph.org/paranoia/)
aasink aalib (http://aa-project.sourceforge.net/aalib/)
-gst1394 libraw1394 (http://linux1394.sourceforge.net)
xmms libxmms (http://www.xmms.org)
decdvd ac3dec,mpeg2dec (http://linuxvideo.org/mpeg2dec/,http://linuxvideo.org/ac3dec/)a
esdsink libesd (ftp.gnome.org/pub/GNOME/stable/sources/esound)
icastsend libshout (http://www.icecast.org)
lame libmp3lame (http://www.mp3dev.org/mp3/)
+gst1394 libraw1394 (http://linux1394.sourceforge.net)
+flac libFLAC (http://flac.sourceforge.net)
Plugins which use a BSD covered library are as follows:
vorbisenc libogg/libvorbis (http://www.xiph.org/ogg/vorbis)
you might want to get the windows libraries
from http://divx.euro.ru/ and put the .dll files
in /usr/lib/win32/)
+flac (for the FLAC lossless audio format)
+ http://flac.sourceforge.net
An extra set of tools is required if you wish to build GStreamer out of
CVS (using autogen.sh):