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