You can clone with
Cannot retrieve contributors at this time
Libav:======Most files in Libav are under the GNU Lesser General Public License version 2.1or later (LGPL v2.1+). Read the file COPYING.LGPLv2.1 for details. Some otherfiles have MIT/X11/BSD-style licenses. In combination the LGPL v2.1+ applies toLibav.Some optional parts of Libav are licensed under the GNU General Public Licenseversion 2 or later (GPL v2+). See the file COPYING.GPLv2 for details. None ofthese parts are used by default, you have to explicitly pass --enable-gpl toconfigure to activate them. In this case, Libav's license changes to GPL v2+.Specifically, the GPL parts of Libav are- the X11 grabber in libavdevice/x11grab.c- the texi2pod.pl tool- the following filters in libavfilter: - vf_blackframe.c - vf_boxblur.c - vf_cropdetect.c - vf_delogo.c - vf_hqdn3d.c - vf_yadif.cThere are a handful of files under other licensing terms, namely:* The files libavcodec/jfdctfst.c, libavcodec/jfdctint_template.c and libavcodec/jrevdct.c are taken from libjpeg, see the top of the files for licensing details. Specifically note that you must credit the IJG in the documentation accompanying your program if you only distribute executables. You must also indicate any changes including additions and deletions to those three files in the documentation.Should you, for whatever reason, prefer to use version 3 of the (L)GPL, thenthe configure parameter --enable-version3 will activate this licensing optionfor you. Read the file COPYING.LGPLv3 or, if you have enabled GPL parts,COPYING.GPLv3 to learn the exact legal terms that apply in this case.external libraries==================Libav can be combined with a number of external libraries, which sometimesaffect the licensing of binaries resulting from the combination.compatible libraries--------------------The libcdio, libx264, libxavs and libxvid libraries are under GPL. Whencombining them with Libav, Libav needs to be licensed as GPL as well bypassing --enable-gpl to configure.The OpenCORE and VisualOn libraries are under the Apache License 2.0. Thatlicense is incompatible with the LGPL v2.1 and the GPL v2, but not withversion 3 of those licenses. So to combine these libraries with Libav, thelicense version needs to be upgraded by passing --enable-version3 to configure.incompatible libraries----------------------The Fraunhofer AAC library, FAAC and OpenSSL are under licenses incompatiblewith all (L)GPL versions. Thus, unfortunately, since both licenses cannot besatisfied simultaneously, binaries resulting from the combination of Libavwith these libraries are nonfree und unredistributable. If you wish to enableany of these libraries nonetheless, pass --enable-nonfree to configure.