[FFmpeg-devel] [PATCH] G722 decoder
Wed Mar 25 00:16:01 CET 2009
On Tue, Mar 24, 2009 at 09:54:56PM +0000, Jethro Walters wrote:
> Can somebody tell me definitively what ffmpeg is licensed as?
Check out the README, I'll paste the relevant section below.
Executive summary: LGPL v2.1 or later, unless you explicitly enable GPL
components. Then it becomes GPL v2 or later.
* Read the file COPYING.LGPL. FFmpeg and the associated libraries EXCEPT
for libpostproc are licensed under the GNU Lesser General Public License.
* libpostproc is distributed under the GNU General Public License, see the
file COPYING.GPL for details. Its compilation and use in FFmpeg is optional.
* libswscale contains some optional processor-specific optimizations
* that are distributed under the GNU General Public License.
* The files libavcodec/x86/idct_mmx.c, libavcodec/x86/h264_deblock_sse2.asm
and libavcodec/x86/h264_idct_sse2.asm are distributed under the GNU General
Public License. They are strictly optimizations and their use is optional.
* The file libavcodec/ac3dec.c is distributed under the GNU General Public
License. In order for (E-)AC-3 decoding to work you need to enable GPL
* The file libavdevice/x11grab.c is distributed under the GNU General
Public License. X11 grabbing is optional.
* The files libavcodec/jfdctfst.c, libavcodec/jfdctint.c, libavcodec/jrevdct.c
are taken from libjpeg, see the top of the files for licensing details.
* The file libavcodec/fdctref.c is copyrighted by the MPEG Software Simulation
Group with all rights reserved. It is only used to create a DCT test program
and not compiled into libavcodec.
* Some external libraries are under GPL. If you wish to use them with FFmpeg,
you have to configure FFmpeg as GPL as well.
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