mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
a7acab6cda
* qatar/master: vc1dec: Remove separate scaling function for interlaced field MVs vc1dec: Invoke edge_emulation regardless of MV precision x86: Use consistent 3dnowext function and macro name suffixes g723_1: scale output as supposed for the case with postfilter disabled g723_1: increase excitation storage by 4 g723_1: fix upper bound parameter from inverse maximum autocorrelation g723_1: make scale_vector() behave like the reference g723_1: fix off-by-one error in normalize_bits() g723_1: save/restore excitation with offset to store LPC history wmapro: prevent division by zero when sample rate is unspecified x86: proresdsp: improve SIGNEXTEND macro comments x86: h264dsp: K&R formatting cosmetics LICENSE: Document all GPL files Conflicts: libavcodec/g723_1.c libavcodec/wmaprodec.c libavcodec/x86/h264dsp_mmx.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
59 lines
2.4 KiB
Plaintext
59 lines
2.4 KiB
Plaintext
FFmpeg:
|
|
-------
|
|
|
|
Most files in FFmpeg are under the GNU Lesser General Public License version 2.1
|
|
or later (LGPL v2.1+). Read the file COPYING.LGPLv2.1 for details. Some other
|
|
files have MIT/X11/BSD-style licenses. In combination the LGPL v2.1+ applies to
|
|
FFmpeg.
|
|
|
|
Some optional parts of FFmpeg are licensed under the GNU General Public License
|
|
version 2 or later (GPL v2+). See the file COPYING.GPLv2 for details. None of
|
|
these parts are used by default, you have to explicitly pass --enable-gpl to
|
|
configure to activate them. In this case, FFmpeg's license changes to GPL v2+.
|
|
|
|
Specifically, the GPL parts of FFmpeg are
|
|
|
|
- libpostproc
|
|
- optional x86 optimizations in the files
|
|
libavcodec/x86/idct_mmx.c
|
|
- the X11 grabber in libavdevice/x11grab.c
|
|
- the texi2pod.pl tool
|
|
- the following filters in libavfilter:
|
|
- vf_blackframe.c
|
|
- vf_boxblur.c
|
|
- vf_cropdetect.c
|
|
- vf_delogo.c
|
|
- vf_hqdn3d.c
|
|
- vf_yadif.c
|
|
|
|
There are a handful of files under other licensing terms, namely:
|
|
|
|
* The files libavcodec/jfdctfst.c, libavcodec/jfdctint_template.c and
|
|
libavcodec/jrevdct.c are taken from libjpeg, see the top of the files for
|
|
licensing details. Specifically note that you must credit the IJG in the
|
|
documentation accompanying your program if you only distribute executables.
|
|
You must also indicate any changes including additions and deletions to
|
|
those three files in the documentation.
|
|
|
|
Should you, for whatever reason, prefer to use version 3 of the (L)GPL, then
|
|
the configure parameter --enable-version3 will activate this licensing option
|
|
for you. Read the file COPYING.LGPLv3 or, if you have enabled GPL parts,
|
|
COPYING.GPLv3 to learn the exact legal terms that apply in this case.
|
|
|
|
|
|
external libraries:
|
|
-------------------
|
|
|
|
Some external libraries, e.g. libx264, are under GPL and can be used in
|
|
conjunction with FFmpeg. They require --enable-gpl to be passed to configure
|
|
as well.
|
|
|
|
The OpenCORE external libraries are under the Apache License 2.0. That license
|
|
is incompatible with the LGPL v2.1 and the GPL v2, but not with version 3 of
|
|
those licenses. So to combine the OpenCORE libraries with FFmpeg, the license
|
|
version needs to be upgraded by passing --enable-version3 to configure.
|
|
|
|
The nonfree external libraries libfaac and libaacplus can be hooked up in FFmpeg.
|
|
You need to pass --enable-nonfree to configure to enable it. Employ this option
|
|
with care as FFmpeg then becomes nonfree and unredistributable.
|