7 * Read the documentation in the doc/ directory.
12 * Read the file COPYING.LGPL. FFmpeg and the associated libraries EXCEPT
13 for libpostproc are licensed under the GNU Lesser General Public License.
15 * libpostproc is distributed under the GNU General Public License, see the
16 file COPYING.GPL for details. Its compilation and use in FFmpeg is optional.
18 * libswscale contains some optional processor-specific optimizations that are
19 distributed under the GNU General Public License.
21 * The files libavcodec/x86/idct_mmx.c, libavcodec/x86/h264_deblock_sse2.asm
22 and libavcodec/x86/h264_idct_sse2.asm are distributed under the GNU General
23 Public License. They are strictly optimizations and their use is optional.
25 * The file libavcodec/ac3dec.c is distributed under the GNU General Public
26 License. In order for (E-)AC-3 decoding to work you need to enable GPL
29 * The file libavdevice/x11grab.c is distributed under the GNU General
30 Public License. X11 grabbing is optional.
32 * The files libavcodec/jfdctfst.c, libavcodec/jfdctint.c, libavcodec/jrevdct.c
33 are taken from libjpeg, see the top of the files for licensing details.
35 * The file libavcodec/fdctref.c is copyrighted by the MPEG Software Simulation
36 Group with all rights reserved. It is only used to create a DCT test program
37 and not compiled into libavcodec.
39 * Some external libraries are under GPL. If you wish to use them with FFmpeg,
40 you have to configure FFmpeg as GPL as well.