MythTV imports the following external libraries:

Library Name	Upstream Library Location	Last imported revision (upstream)	Last imported date	Changeset
libavcodec/libavfilter/libswscale/libavutil/libpostproc	​http://git.ffmpeg.org/	21657	02/10/10	​23525
libbluray	​http://git.videolan.org/	635bba0a91f605dcd8cebbf942c884bff04aae3a	07/22/10	​25394
libdvdnav/libdvdread	​http://svn.mplayerhq.hu/	1166	02/08/09	​19956
libhdhomerun	​http://www.silicondust.com/support/hdhomerun/downloads/linux/	20100519beta1	05/19/10	​24741
liblivemedia	​http://www.live555.com/liveMedia/	Unknown	06/21/06	​10265
libmpeg2	​http://libmpeg2.sourceforge.net/	Unknown	01/21/05	​5118
libsamplerate	​http://www.mega-nerd.com/SRC/index.html	0.1.7	10/18/09	​22521
libsoundtouch	​http://www.surina.net/soundtouch/	1.3.1	05/23/06	​9996