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🎥 Command line media player
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879mpv is a fork of mplayer2, which is a fork of MPlayer.mpv as a whole is licensed under the GNU General Public License GPL version 2or later (called GPLv2+ in this document, see LICENSE.GPL for full licensetext) by default. The mpv program is licensed the GNU Lesser General PublicLicense LGPL version 2 or later (LGPLv2.1+ in this document, see LICENSE.LGPLfor full license text) if built without using any GPL only files.The -Dgpl=false configure switch is provided as a convenience for excludingthe GPL only files listed below from the build process.However, do note that the build system is provided "as is" and using the-Dgpl=false configure switch does not in itself create a LGPLv2.1+ licensegrant.Additionally, some non-program parts, such as the documentation and some configfiles listed below, are still built and licensed under their respective licenseseven when -Dgpl=false is used. Please consult GPLv2+ and LGPLv2.1+ license textsfor further details on how to distribute these files.Most source files are LGPLv2.1+ or GPLv2+, but some files are available undermore liberal licenses, such as BSD, MIT, ISC, and possibly others. Look at thecopyright header of each source file, and grep the sources for "Copyright" ifyou need to know details. C source files without Copyright notice are usuallylicensed as LGPLv2.1+. Also see the list of files with specific licenses below(not all files can have a standard license header).All new contributions must be LGPLv2.1+ licensed. Using a more liberal licensecompatible to LGPLv2.1+ is also ok.Changes done to GPL code must come with the implicit/explicit agreement that theproject can relicense the changes to LGPLv2.1+ at a later point without askingthe contributor. This is a safeguard for making potential relicensing ofremaining GPL code to LGPLv2.1+ easier.See DOCS/contribute.md for binding rules wrt. licensing for contributions.For information about authors and contributors, consult the git log, whichcontains the complete SVN and CVS history as well.mpv can be built as LGPLv2.1+ without using any GPL only files. To add aLGPL mode to mpv, MPlayer code had to be relicensed from GPLv2+ to LGPLv2.1+ byasking the MPlayer authors for permission. Since permission could not beobtained from everyone, LGPL mode disables the following features, some of themquite central:- Linux X11 video output- BSD audio output via OSS- NVIDIA/Linux hardware decoding (vdpau, although nvdec usually works)- minor features: jack, DVD, CDDA, DVB, CACA, legacy direct3d VOSome of these will be fixed in the future. The intended use for LGPL mode iswith libmpv, and currently it's not recommended to build mpv CLI in LGPL modeat all.The following files are still GPL only (-Dgpl=false disables them): audio/out/ao_jack.c will stay GPL audio/out/ao_oss.c will stay GPL stream/dvb* must stay GPL stream/stream_cdda.c unknown stream/stream_dvb.* must stay GPL stream/stream_dvdnav.c unknown video/out/vo_caca.c unknown video/out/vo_direct3d.c unknown video/out/vo_vaapi.c probably impossible (some company's code) video/out/vo_vdpau.c probably impossible (nVidia's code) video/out/vo_x11.c probably impossible video/out/vo_xv.c probably impossible video/out/x11_common.* probably impossible video/vdpau.c hard (GPL-only parts must be ifdefed) video/vdpau.h unknown video/vdpau_mixer.* actual code must be rewritten DOCS/man/ GPLv2+ etc/mplayer-input.conf unknown license, probably GPLv2+ etc/mpv.desktop unknown license, probably GPLv2+ etc/restore-old-bindings.conf unknown license, probably GPLv2+None of the cases listed above affect the final binary if it's built asLGPL. Linked libraries still can affect the final license (for example ifFFmpeg was built as GPL).