mpv is a fork of mplayer2, which is a fork of MPlayer. Original MPlayer Copyright file follows below. MPlayer was originally written by Árpád Gereöffy and has been extended and worked on by many more since then, see the AUTHORS file for an (incomplete) list. MPlayer as a whole is copyrighted by the MPlayer team. Individual copyright notices can be found in file headers. Most files in MPlayer are licensed under the GNU General Public License, version 2 with an explicit "or later" clause or a compatible license (LGPL 2.1+, MIT/BSD). An exception are the files talloc.c and talloc.h, which are LGPL 3+. Thus MPlayer as a whole can be redistributed under terms compatible with the GNU General Public License, version 3; see the LICENSE file for details. MPlayer includes code from several external sources. General information and license details are listed below: Name: a couple of files copied from FFmpeg Version: updated to different versions URL: http://www.ffmpeg.org Directory: compat/x86_cpu.h Copyright: Many, see individual files for copyright notices. License: GNU Lesser General Public License Name: dvbstream Version: 0.4.3-pre3 (CVS checkout) URL: http://sourceforge.net/projects/dvbtools/ Directory: stream/dvbin.h stream/stream_dvb.c Copyright: 2001-2002 Dave Chapman License: GNU General Public License This is not a complete list. grep the sources for "Copyright".