mirror of
https://github.com/mpv-player/mpv
synced 2024-12-26 09:02:38 +00:00
e544c3f7b3
Originally mpv vaapi support was based on the MPlayer-vaapi patches. These were never merged in upstream MPlayer. The license headers indicated they were GPL-only. Although the actual author agreed to relicensing, the company employing him to write this code did not, so the original code is unusable to us. Fortunately, vaapi support was refactored and rewritten several times, meaning little code is actually left. The previous commits removed or moved that to GPL-only code. Namely, vo_vaapi.c remains GPL-only. The other code went away or became unnecessary mainly because libavcodec itself gained the ability to manage the hw decoder, and libavutil provides code to manage vaapi surfaces. We also changed to mainly using EGL interop, making any of the old rendering code unnecessary. hwdec_vaglx.c is still GPL. It's possibly relicensable, because much of it was changed, but I'm not too sure and further investigation would be required. Also, this has been disabled by default for a while now, so bothering with this is a waste of time. This commit simply disables it at compile time as well in LGPL mode.
144 lines
7.1 KiB
Plaintext
144 lines
7.1 KiB
Plaintext
mpv is a fork of mplayer2, which is a fork of MPlayer.
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mpv as a whole is licensed as GPL version 2 or later (see LICENSE). Most source
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files are GPLv2+, but some files are available under a more liberal license,
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such as LGPLv2.1+, BSD, MIT, ISC, and possibly others. Look at the copyright
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header of each source file, and grep the sources for "Copyright" if you need
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to know details. C source files without Copyright notice are licensed as
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LGPLv2.1+. Also see the list of files with specific licenses below (not all
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files can have a standard license header).
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All new contributions must be LGPLv2.1+ licensed, or if the changes are done on
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GPL code, must come with the implicit agreement that the project can relicense
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the code to LGPLv2.1+ at a later point without asking the contributor. (This
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is a safeguard for making potential relicensing of remaining code to LGPLv2.1+
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easier.) Using a more liberal license compatible to LGPLv2.1+ is also ok.
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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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Note that mplayer2 as a whole is licensed under GPLv3+. This is because it uses
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a copy of talloc (part of Samba), which is LGPLv3+, and the next compatible
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license for this mix is GPLv3+.
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MPlayer as a whole is licensed under GPLv2 (incompatible to GPLv3!), because
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some files are licensed to GPLv2 (and _not_ any later version of the license).
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In particular, this affects the file libmpdemux/demux_ty_osd.c. It is disabled
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under mplayer2, and has been removed from mpv.
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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 LGPLv3+ with the --enable-preliminary-lgpl3 configure
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option. This is a very new switch and it hasn't been confirmed yet whether
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really all GPL code is excluded (thus preliminary). In addition, it disables
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a number of useful features, some of them quite central:
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- no audio filtering, which breaks: --volume, --af, replaygain, pitch
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correction, fine control about downmix/upmix/resampling behavior
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- Linux X11 video output
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- Linux audio output via ALSA (PulseAudio works)
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- BSD audio output via OSS
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- NVIDIA/Linux hardware decoding (vdpau, although CUDA usually works)
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- many builtin video filters (use libavfilter instead)
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- automatic rotation and stereoscopic video handling
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- Linux TV input
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- the --frames option
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- the add/cycle and sub-add/audio-add/sub-remove/audio-remove commands
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- video format conversion (if not supported by the VO)
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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 lack of the add/cycle commands
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makes this particularly useless for CLI mode, and most of the appeal of LGPL
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is for libmpv anyway. Thus it's not recommended to build mpv CLI in LGPL mode
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at all.
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Source files with specific licenses:
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- etc/input.conf is LGPLv2.1+
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- etc/builtin.conf is LGPLv2.1+
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- etc/encoding-profiles.conf is LGPLv2.1+
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- all mpv icons and derived files are LGPLv2.1+ (mpv-icon-8bit-16x16.png etc.)
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- everything else under etc/ is unknown
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- everything under DOCS/man/ is GPLv2+
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- sub/osd_font.otf is LGPLv2.1+
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- version.sh is LGPLv2+
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- bootstrap.py is unknown (probably GPLv2+ or LGPLv2+)
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- the build system (wscript, waftools/*) is LGPLv2+, some parts BSD
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Some files are LGPLv3+. This is due to the contributions of a single developer
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going by the SVN username "iive". The chosen license of this project is
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LGPLv2.1+. The affected files will be changed to LGPLv2.1+ at the earliest
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opportunity, for example if his contributions disappear by being replaced
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or removed. All new contributions to these files are implied to be LGPLv2.1+.
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The following files are still GPL:
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audio/filter/* will be replaced with new filter chain
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audio/filter/af_format.c mostly LGPL (except af glue code)
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audio/filter/af_lavc3enc.c as above
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audio/filter/af_lavfi.c as above
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audio/filter/af_scaletempo.c as above
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audio/filter/af_rubberband.c as above
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audio/out/ao_alsa.c chaotic history, original author did not decide
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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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audio/audio.* needed by af code only
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demux/demux_tv.c will stay GPL
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stream/ai_* will stay GPL (TV code)
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stream/audio_in.* will stay GPL (TV code)
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stream/dvb* must stay GPL
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stream/frequencies.* 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_dvd.c unknown
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stream/stream_dvd_common.* unknown
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stream/stream_dvdnav.c unknown
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stream/stream_smb.c will stay GPLv3
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stream/stream_tv.c will stay GPL
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stream/tv* will stay GPL
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video/filter/vf_crop.c will be deleted
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video/filter/vf_dsize.c will be deleted
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video/filter/vf_expand.c will be deleted
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video/filter/vf_flip.c will be deleted
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video/filter/vf_format.c will be deleted
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video/filter/vf_gradfun.c will be deleted
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video/filter/vf_mirror.c will be deleted
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video/filter/vf_noformat.c will be deleted
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video/filter/vf_pullup.c will be deleted
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video/filter/vf_rotate.c will be deleted
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video/filter/vf_scale.c will be deleted
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video/filter/vf_stereo3d.c will be deleted
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video/filter/vf_sub.c will be deleted
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video/filter/vf_yadif.c will be deleted
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video/gpu_memcpy.* will be deleted
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video/out/opengl/hwdec_vaglx.c GPL
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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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The following files contain some optional GPL code:
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input/cmd_list.c potentially some commands
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demux/demux_mkv.c some verbose message
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options/options.c --frames option
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options/parse_commandline.c dvd:// expansion
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player/audio.c libaf glue code
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player/loadfile.c --frames option (minor but probably fatal)
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player/osd.c OSD level 3
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player/command.c add/cycle command, possible sub-add command
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player/main.c configuration output
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The following files are partially LGPLv3+ (otherwise LGPL):
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demux/demux_mf.c minor autodetection thing
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stream/cache.c minor cache option changes
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video/decode/lavc.h split from vd_lavc.c
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video/decode/vd_lavc.c XvMC influences in get_format()
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