131 lines
5.1 KiB
Text
131 lines
5.1 KiB
Text
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The following is from the README from the lame source:
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This code is distributed under the GNU LESSER PUBLIC LICENSE
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(LGPL, see www.gnu.org) with the following modification:
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1. If you determine that distribution of LAME requires a patent license,
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and you obtain a patent license, you may distribute LAME even though
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redistribution of LAME may also require a patent license.
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2. You agree not to enforce any patent claims for any aspect of
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MPEG audio compression, or any other techniques contained in
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the LAME source code.
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The following is from the LICENSE file from the lame source:
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Can I use LAME in my commercial program?
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Yes, you can, under the restrictions of the LGPL. The easiest
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way to do this is to:
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1. Link to LAME as separate library (libmp3lame.a on unix or
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lame_enc.dll on windows)
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2. Fully acknowledge that you are using LAME, and give a link
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to our web site, www.mp3dev.org
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3. If you make modifications to LAME, you *must* release these
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these modifications back to the LAME project, under the LGPL.
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*** IMPORTANT NOTE ***
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The decoding functions provided in LAME use the mpglib decoding engine which
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is under the GPL. They may not be used by any program not released under the
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GPL unless you obtain such permission from the MPG123 project (www.mpg123.de).
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Running "lame --license" (or viewing frontend/parse.c) reports:
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-=-=-=-=-=-=-
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LAME version 3.96.1 (http://lame.sourceforge.net/)
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Can I use LAME in my commercial program?
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Yes, you can, under the restrictions of the LGPL. In particular, you
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can include a compiled version of the LAME library (for example,
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lame.dll) with a commercial program. Some notable requirements of
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the LGPL:
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1. In your program, you cannot include any source code from LAME, with
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the exception of files whose only purpose is to describe the library
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interface (such as lame.h).
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2. Any modifications of LAME must be released under the LGPL.
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The LAME project (www.mp3dev.org) would appreciate being
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notified of any modifications.
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3. You must give prominent notice that your program is:
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A. using LAME (including version number)
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B. LAME is under the LGPL
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C. Provide a copy of the LGPL. (the file COPYING contains the LGPL)
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D. Provide a copy of LAME source, or a pointer where the LAME
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source can be obtained (such as www.mp3dev.org)
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An example of prominent notice would be an "About the LAME encoding engine"
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button in some pull down menu within the executable of your program.
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4. If you determine that distribution of LAME requires a patent license,
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you must obtain such license.
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*** IMPORTANT NOTE ***
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The decoding functions provided in LAME use the mpglib decoding engine which
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is under the GPL. They may not be used by any program not released under the
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GPL unless you obtain such permission from the MPG123 project (www.mpg123.de).
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The mpglib/README file included with the lame source says:
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COPYING: you may use this source under GPL terms!
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PLEASE NOTE: This software may contain patented algorithms (at least
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patented in some countries). It may be not allowed to sell/use products
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based on this source code in these countries. Check this out first!
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The libmp3lame/fft.c file from the source includes:
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** NOTE: This routine uses at least 2 patented algorithms, and may be
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** under the restrictions of a bunch of different organizations.
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** Although I wrote it completely myself; it is kind of a derivative
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** of a routine I once authored and released under the GPL, so it
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** may fall under the free software foundation's restrictions;
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** it was worked on as a Stanford Univ project, so they claim
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** some rights to it; it was further optimized at work here, so
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** I think this company claims parts of it. The patents are
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** held by R. Bracewell (the FHT algorithm) and O. Buneman (the
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** trig generator), both at Stanford Univ.
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** If it were up to me, I'd say go do whatever you want with it;
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** but it would be polite to give credit to the following people
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** if you use this anywhere:
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** Euler - probable inventor of the fourier transform.
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** Gauss - probable inventor of the FFT.
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** Hartley - probable inventor of the hartley transform.
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** Buneman - for a really cool trig generator
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** Mayer(me) - for authoring this particular version and
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** including all the optimizations in one package.
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** Thanks,
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** Ron Mayer; mayer@acuson.com
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-=-=-=-=-
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Although lame_enc.dll is not included with the package, the
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Dll/LameDLLInterface.htm webpage (included with the source) says:
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-=-=-=-=-
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People and companies who wants to distribute
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lame_enc.dll with their commercial products are free to do so as
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far as I'm concerned (LGPL license), but should be aware that
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lame_enc.dll might infringe certain MP3 related software patents
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held by Fraunhofer IIS in certain countries.
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-=-=-=-=-=-
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Also see
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http://www.mp3licensing.com/help/developers.html#55
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and section 11 in the LGPL and section 7 in the GPL.
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