mirror of
https://github.com/mpv-player/mpv
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74b4760aa8
Basically, both the license of the file and the preferred license of the project (LGPLv2.1+) counts. I'm doing that so that files with more liberal licenses don't get infected by LGPL, but allow copy & pasting to LGPL source files without jumping through lawyer bullshit hoops. Mention this in Copyright too.
76 lines
3.7 KiB
Plaintext
76 lines
3.7 KiB
Plaintext
mpv is a fork of mplayer2, which is a fork of MPlayer.
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mpv as a whole is licensed under the GNU General Public License GPL version 2
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or later (called GPLv2+ in this document, see LICENSE.GPL for full license
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text) by default, or the GNU Lesser General Public License LGPL version 2 or
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later (LGPLv2.1+ in this document, see LICENSE.LGPL for full license text) if
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built with the --enable-lgpl configure switch.
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Most source files are LGPLv2.1+ or GPLv2+, but some files are available under
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more liberal licenses, such as BSD, MIT, ISC, and possibly others. Look at the
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copyright header of each source file, and grep the sources for "Copyright" if
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you need to know details. C source files without Copyright notice are usually
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licensed as LGPLv2.1+. Also see the list of files with specific licenses below
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(not all files can have a standard license header).
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All new contributions must be LGPLv2.1+ licensed. Using a more liberal license
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compatible to LGPLv2.1+ is also ok.
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Changes done to GPL code must come with the implicit/explicit agreement that the
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project can relicense the changes to LGPLv2.1+ at a later point without asking
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the contributor. This is a safeguard for making potential relicensing of
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remaining GPL code to LGPLv2.1+ easier.
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See DOCS/contribute.md for binding rules wrt. licensing for contributions.
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For information about authors and contributors, consult the git log, which
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contains the complete SVN and CVS history as well.
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"v2.1+" in this context means "version 2.1 or later".
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Some libraries are GPLv2+ or GPLv3+ only. Building mpv with Samba support makes
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it GPLv3+.
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mpv can be built as LGPLv2.1+ with the --enable-lgpl configure option. To add
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a LGPL mode to mpv, MPlayer code had to be relicensed from GPLv2+ to LGPLv2.1+
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by asking the MPlayer authors for permission. Since permission could not be
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obtained from everyone, LGPL mode disables the following features, some of
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them quite central:
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- Linux X11 video output
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- BSD audio output via OSS
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- NVIDIA/Linux hardware decoding (vdpau, although nvdec usually works)
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- Linux TV input
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- minor features: jack, DVD, CDDA, SMB, CACA, legacy direct3d VO
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Some of these will be fixed in the future. The intended use for LGPL mode is
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with libmpv, and currently it's not recommended to build mpv CLI in LGPL mode
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at all.
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The following files are still GPL only (--enable-lgpl disables them):
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audio/out/ao_jack.c will stay GPL
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audio/out/ao_oss.c will stay GPL
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stream/dvb* must stay GPL
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stream/stream_cdda.c unknown
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stream/stream_dvb.* must stay GPL
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stream/stream_dvdnav.c unknown
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stream/stream_smb.c will stay GPLv3
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video/out/vo_caca.c unknown
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video/out/vo_direct3d.c unknown
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video/out/vo_vaapi.c probably impossible (some company's code)
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video/out/vo_vdpau.c probably impossible (nVidia's code)
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video/out/vo_x11.c probably impossible
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video/out/vo_xv.c probably impossible
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video/out/x11_common.* probably impossible
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video/vdpau.c hard (GPL-only parts must be ifdefed)
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video/vdpau.h unknown
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video/vdpau_mixer.* actual code must be rewritten
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DOCS/man/ GPLv2+
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bootstrap.py unknown license, probably GPLv2+ or LGPLv2+
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etc/mplayer-input.conf unknown license, probably GPLv2+
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mpv.desktop unknown license, probably GPLv2+
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etc/restore-old-bindings.conf unknown license, probably GPLv2+
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None of the cases listed above affect the final binary if it's built as
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LGPL. Linked libraries still can affect the final license (for example if
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FFmpeg was built as GPL).
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