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. An exception is the file libmpdemux/demux_ty_osd.c, which is version 2 only. Thus MPlayer as a whole can be redistributed under the terms of the GNU General Public License, version 2, 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: ffmpeg_files Copyright: Many, see individual files for copyright notices. License: GNU Lesser General Public License Name: libdvdcss Version: Subversion r237 + local changes URL: http://developers.videolan.org/libdvdcss/ Directory: libdvdcss Copyright: 1998-2008 VideoLAN License: GNU General Public License Name: mpg123 Version: 0.59s + significant changes URL: http://www.mpg123.de/ Directory: mp3lib Copyright: 1995-1999 by Michael Hipp 2004 Romain Dolbeau 2006 Zuxy Meng License: GNU General Public License Name: librtsp Version: xine CVS 2003/04/10 + patches URL: http://www.xinehq.de Directory: stream/librtsp/ Copyright: 2000-2002 the xine project License: GNU General Public License Name: realrtsp Version: xine CVS 2003/04/17 + patches URL: http://www.xinehq.de Directory: stream/realrtsp/ Copyright: 2002 the xine project License: GNU General Public License Name: pnm protocol implementation Version: xine CVS 2002/12/26 + patches URL: http://www.xinehq.de Directory: stream/pnm.[ch] Copyright: 2000-2002 the xine project License: GNU General Public License Name: id3edit Version: 1.9 + patches URL: http://id3edit.sourceforge.net/ Directory: libmpdemux/genres.h Copyright: 2001 Jason Carter License: GNU General Public License Name: FreeSDP Version: 0.4.1 URL: https://savannah.nongnu.org/projects/freesdp/ Directory: stream/freesdp/ Copyright: 2001-2003 Federico Montesino Pouzols License: GNU General Public License Name: MJPEG Tools Version: post 2001-12-03 release or CVS snapshot URL: http://mjpeg.sourceforge.net/ Directory: libmpdemux/yuv4mpeg* Copyright: 2001 Matthew J. Marjanovic 2001 Andrew Stevens License: GNU General Public License