thirdpartylegalnotices.txt

The Source Engine, Valve games and Refraction mod use Third Party software for certain
functions. The required legal notices for using such code are reproduced below:

************************************************************************************
Discord RPC
************************************************************************************
    Copyright 2017 Discord, Inc.

    Permission is hereby granted, free of charge, to any person obtaining a copy of
    this software and associated documentation files (the "Software"), to deal in
    the Software without restriction, including without limitation the rights to
    use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
    of the Software, and to permit persons to whom the Software is furnished to do
    so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in all
    copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    SOFTWARE.

************************************************************************************
Xzip/Xunzip:
************************************************************************************

    // This is version 2002-Feb-16 of the Info-ZIP copyright and license. The 
    // definitive version of this document should be available at 
    // ftp://ftp.info-zip.org/pub/infozip/license.html indefinitely.
    // 
    // Copyright (c) 1990-2002 Info-ZIP.  All rights reserved.
    //
    // For the purposes of this copyright and license, "Info-ZIP" is defined as
    // the following set of individuals:
    //
    //   Mark Adler, John Bush, Karl Davis, Harald Denker, Jean-Michel Dubois,
    //   Jean-loup Gailly, Hunter Goatley, Ian Gorman, Chris Herborth, Dirk Haase,
    //   Greg Hartwig, Robert Heath, Jonathan Hudson, Paul Kienitz, 
    //   David Kirschbaum, Johnny Lee, Onno van der Linden, Igor Mandrichenko, 
    //   Steve P. Miller, Sergio Monesi, Keith Owens, George Petrov, Greg Roelofs, 
    //   Kai Uwe Rommel, Steve Salisbury, Dave Smith, Christian Spieler, 
    //   Antoine Verheijen, Paul von Behren, Rich Wales, Mike White
    //
    // This software is provided "as is", without warranty of any kind, express
    // or implied.  In no event shall Info-ZIP or its contributors be held liable
    // for any direct, indirect, incidental, special or consequential damages
    // arising out of the use of or inability to use this software.
    //
    // Permission is granted to anyone to use this software for any purpose,
    // including commercial applications, and to alter it and redistribute it
    // freely, subject to the following restrictions:
    //
    //    1. Redistributions of source code must retain the above copyright notice,
    //       definition, disclaimer, and this list of conditions.
    //
    //    2. Redistributions in binary form (compiled executables) must reproduce 
    //       the above copyright notice, definition, disclaimer, and this list of 
    //       conditions in documentation and/or other materials provided with the 
    //       distribution. The sole exception to this condition is redistribution 
    //       of a standard UnZipSFX binary as part of a self-extracting archive; 
    //       that is permitted without inclusion of this license, as long as the 
    //       normal UnZipSFX banner has not been removed from the binary or disabled.
    //
    //    3. Altered versions--including, but not limited to, ports to new 
    //       operating systems, existing ports with new graphical interfaces, and 
    //       dynamic, shared, or static library versions--must be plainly marked 
    //       as such and must not be misrepresented as being the original source.  
    //       Such altered versions also must not be misrepresented as being 
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    //       "UnZipSFX", "WiZ", "Pocket UnZip", "Pocket Zip", and "MacZip" for its 
    //       own source and binary releases.
    //
    ///////////////////////////////////////////////////////////////////////////////

************************************************************************************
JPEG image support:
************************************************************************************

    The Source engine and SDK also make use of library functions for working with .jpg 
    files.  Specifically, the Source engine jpeg library is based in part on the work of 
    the Independent JPEG Group (IJG).  The original source code and project files for the IJG's 
    JPEG libraries may be found at:  http://www.ijg.org/files/jpegsrc.v6b.tar.gz

    The following is the README. File from that archive and is produced in accordance with the legal 
    notices required by the library:

    The Independent JPEG Group's JPEG software
    ==========================================

    README for release 6b of 27-Mar-1998
    ====================================

    This distribution contains the sixth public release of the Independent JPEG
    Group's free JPEG software.  You are welcome to redistribute this software and
    to use it for any purpose, subject to the conditions under LEGAL ISSUES, below.

    Serious users of this software (particularly those incorporating it into
    larger programs) should contact IJG at jpeg-info@uunet.uu.net to be added to
    our electronic mailing list.  Mailing list members are notified of updates
    and have a chance to participate in technical discussions, etc.

    This software is the work of Tom Lane, Philip Gladstone, Jim Boucher,
    Lee Crocker, Julian Minguillon, Luis Ortiz, George Phillips, Davide Rossi,
    Guido Vollbeding, Ge' Weijers, and other members of the Independent JPEG
    Group.

    IJG is not affiliated with the official ISO JPEG standards committee.


    DOCUMENTATION ROADMAP
    =====================

    This file contains the following sections:

    OVERVIEW            General description of JPEG and the IJG software.
    LEGAL ISSUES        Copyright, lack of warranty, terms of distribution.
    REFERENCES          Where to learn more about JPEG.
    ARCHIVE LOCATIONS   Where to find newer versions of this software.
    RELATED SOFTWARE    Other stuff you should get.
    FILE FORMAT WARS    Software *not* to get.
    TO DO               Plans for future IJG releases.

    Other documentation files in the distribution are:

    User documentation:
      install.doc       How to configure and install the IJG software.
      usage.doc         Usage instructions for cjpeg, djpeg, jpegtran,
                        rdjpgcom, and wrjpgcom.
      *.1               Unix-style man pages for programs (same info as usage.doc).
      wizard.doc        Advanced usage instructions for JPEG wizards only.
      change.log        Version-to-version change highlights.
    Programmer and internal documentation:
      libjpeg.doc       How to use the JPEG library in your own programs.
      example.c         Sample code for calling the JPEG library.
      structure.doc     Overview of the JPEG library's internal structure.
      filelist.doc      Road map of IJG files.
      coderules.doc     Coding style rules --- please read if you contribute code.

    Please read at least the files install.doc and usage.doc.  Useful information
    can also be found in the JPEG FAQ (Frequently Asked Questions) article.  See
    ARCHIVE LOCATIONS below to find out where to obtain the FAQ article.

    If you want to understand how the JPEG code works, we suggest reading one or
    more of the REFERENCES, then looking at the documentation files (in roughly
    the order listed) before diving into the code.


    OVERVIEW
    ========

    This package contains C software to implement JPEG image compression and
    decompression.  JPEG (pronounced "jay-peg") is a standardized compression
    method for full-color and gray-scale images.  JPEG is intended for compressing
    "real-world" scenes; line drawings, cartoons and other non-realistic images
    are not its strong suit.  JPEG is lossy, meaning that the output image is not
    exactly identical to the input image.  Hence you must not use JPEG if you
    have to have identical output bits.  However, on typical photographic images,
    very good compression levels can be obtained with no visible change, and
    remarkably high compression levels are possible if you can tolerate a
    low-quality image.  For more details, see the references, or just experiment
    with various compression settings.

    This software implements JPEG baseline, extended-sequential, and progressive
    compression processes.  Provision is made for supporting all variants of these
    processes, although some uncommon parameter settings aren't implemented yet.
    For legal reasons, we are not distributing code for the arithmetic-coding
    variants of JPEG; see LEGAL ISSUES.  We have made no provision for supporting
    the hierarchical or lossless processes defined in the standard.

    We provide a set of library routines for reading and writing JPEG image files,
    plus two sample applications "cjpeg" and "djpeg", which use the library to
    perform conversion between JPEG and some other popular image file formats.
    The library is intended to be reused in other applications.

    In order to support file conversion and viewing software, we have included
    considerable functionality beyond the bare JPEG coding/decoding capability;
    for example, the color quantization modules are not strictly part of JPEG
    decoding, but they are essential for output to colormapped file formats or
    colormapped displays.  These extra functions can be compiled out of the
    library if not required for a particular application.  We have also included
    "jpegtran", a utility for lossless transcoding between different JPEG
    processes, and "rdjpgcom" and "wrjpgcom", two simple applications for
    inserting and extracting textual comments in JFIF files.

    The emphasis in designing this software has been on achieving portability and
    flexibility, while also making it fast enough to be useful.  In particular,
    the software is not intended to be read as a tutorial on JPEG.  (See the
    REFERENCES section for introductory material.)  Rather, it is intended to
    be reliable, portable, industrial-strength code.  We do not claim to have
    achieved that goal in every aspect of the software, but we strive for it.

    We welcome the use of this software as a component of commercial products.
    No royalty is required, but we do ask for an acknowledgement in product
    documentation, as described under LEGAL ISSUES.


    LEGAL ISSUES
    ============

    In plain English:

    1. We don't promise that this software works.  (But if you find any bugs,
       please let us know!)
    2. You can use this software for whatever you want.  You don't have to pay us.
    3. You may not pretend that you wrote this software.  If you use it in a
       program, you must acknowledge somewhere in your documentation that
       you've used the IJG code.

    In legalese:

    The authors make NO WARRANTY or representation, either express or implied,
    with respect to this software, its quality, accuracy, merchantability, or
    fitness for a particular purpose.  This software is provided "AS IS", and you,
    its user, assume the entire risk as to its quality and accuracy.

    This software is copyright (C) 1991-1998, Thomas G. Lane.
    All Rights Reserved except as specified below.

    Permission is hereby granted to use, copy, modify, and distribute this
    software (or portions thereof) for any purpose, without fee, subject to these
    conditions:
    (1) If any part of the source code for this software is distributed, then this
    README file must be included, with this copyright and no-warranty notice
    unaltered; and any additions, deletions, or changes to the original files
    must be clearly indicated in accompanying documentation.
    (2) If only executable code is distributed, then the accompanying
    documentation must state that "this software is based in part on the work of
    the Independent JPEG Group".
    (3) Permission for use of this software is granted only if the user accepts
    full responsibility for any undesirable consequences; the authors accept
    NO LIABILITY for damages of any kind.

    These conditions apply to any software derived from or based on the IJG code,
    not just to the unmodified library.  If you use our work, you ought to
    acknowledge us.

    Permission is NOT granted for the use of any IJG author's name or company name
    in advertising or publicity relating to this software or products derived from
    it.  This software may be referred to only as "the Independent JPEG Group's
    software".

    We specifically permit and encourage the use of this software as the basis of
    commercial products, provided that all warranty or liability claims are
    assumed by the product vendor.


    ansi2knr.c is included in this distribution by permission of L. Peter Deutsch,
    sole proprietor of its copyright holder, Aladdin Enterprises of Menlo Park, CA.
    ansi2knr.c is NOT covered by the above copyright and conditions, but instead
    by the usual distribution terms of the Free Software Foundation; principally,
    that you must include source code if you redistribute it.  (See the file
    ansi2knr.c for full details.)  However, since ansi2knr.c is not needed as part
    of any program generated from the IJG code, this does not limit you more than
    the foregoing paragraphs do.

    The Unix configuration script "configure" was produced with GNU Autoconf.
    It is copyright by the Free Software Foundation but is freely distributable.
    The same holds for its supporting scripts (config.guess, config.sub,
    ltconfig, ltmain.sh).  Another support script, install-sh, is copyright
    by M.I.T. but is also freely distributable.

    It appears that the arithmetic coding option of the JPEG spec is covered by
    patents owned by IBM, AT&T, and Mitsubishi.  Hence arithmetic coding cannot
    legally be used without obtaining one or more licenses.  For this reason,
    support for arithmetic coding has been removed from the free JPEG software.
    (Since arithmetic coding provides only a marginal gain over the unpatented
    Huffman mode, it is unlikely that very many implementations will support it.)
    So far as we are aware, there are no patent restrictions on the remaining
    code.

    The IJG distribution formerly included code to read and write GIF files.
    To avoid entanglement with the Unisys LZW patent, GIF reading support has
    been removed altogether, and the GIF writer has been simplified to produce
    "uncompressed GIFs".  This technique does not use the LZW algorithm; the
    resulting GIF files are larger than usual, but are readable by all standard
    GIF decoders.

    We are required to state that
        "The Graphics Interchange Format(c) is the Copyright property of
        CompuServe Incorporated.  GIF(sm) is a Service Mark property of
        CompuServe Incorporated."


    REFERENCES
    ==========

    We highly recommend reading one or more of these references before trying to
    understand the innards of the JPEG software.

    The best short technical introduction to the JPEG compression algorithm is
        Wallace, Gregory K.  "The JPEG Still Picture Compression Standard",
        Communications of the ACM, April 1991 (vol. 34 no. 4), pp. 30-44.
    (Adjacent articles in that issue discuss MPEG motion picture compression,
    applications of JPEG, and related topics.)  If you don't have the CACM issue
    handy, a PostScript file containing a revised version of Wallace's article is
    available at ftp://ftp.uu.net/graphics/jpeg/wallace.ps.gz.  The file (actually
    a preprint for an article that appeared in IEEE Trans. Consumer Electronics)
    omits the sample images that appeared in CACM, but it includes corrections
    and some added material.  Note: the Wallace article is copyright ACM and IEEE,
    and it may not be used for commercial purposes.

    A somewhat less technical, more leisurely introduction to JPEG can be found in
    "The Data Compression Book" by Mark Nelson and Jean-loup Gailly, published by
    M&T Books (New York), 2nd ed. 1996, ISBN 1-55851-434-1.  This book provides
    good explanations and example C code for a multitude of compression methods
    including JPEG.  It is an excellent source if you are comfortable reading C
    code but don't know much about data compression in general.  The book's JPEG
    sample code is far from industrial-strength, but when you are ready to look
    at a full implementation, you've got one here...

    The best full description of JPEG is the textbook "JPEG Still Image Data
    Compression Standard" by William B. Pennebaker and Joan L. Mitchell, published
    by Van Nostrand Reinhold, 1993, ISBN 0-442-01272-1.  Price US$59.95, 638 pp.
    The book includes the complete text of the ISO JPEG standards (DIS 10918-1
    and draft DIS 10918-2).  This is by far the most complete exposition of JPEG
    in existence, and we highly recommend it.

    The JPEG standard itself is not available electronically; you must order a
    paper copy through ISO or ITU.  (Unless you feel a need to own a certified
    official copy, we recommend buying the Pennebaker and Mitchell book instead;
    it's much cheaper and includes a great deal of useful explanatory material.)
    In the USA, copies of the standard may be ordered from ANSI Sales at (212)
    642-4900, or from Global Engineering Documents at (800) 854-7179.  (ANSI
    doesn't take credit card orders, but Global does.)  It's not cheap: as of
    1992, ANSI was charging $95 for Part 1 and $47 for Part 2, plus 7%
    shipping/handling.  The standard is divided into two parts, Part 1 being the
    actual specification, while Part 2 covers compliance testing methods.  Part 1
    is titled "Digital Compression and Coding of Continuous-tone Still Images,
    Part 1: Requirements and guidelines" and has document numbers ISO/IEC IS
    10918-1, ITU-T T.81.  Part 2 is titled "Digital Compression and Coding of
    Continuous-tone Still Images, Part 2: Compliance testing" and has document
    numbers ISO/IEC IS 10918-2, ITU-T T.83.

    Some extensions to the original JPEG standard are defined in JPEG Part 3,
    a newer ISO standard numbered ISO/IEC IS 10918-3 and ITU-T T.84.  IJG
    currently does not support any Part 3 extensions.

    The JPEG standard does not specify all details of an interchangeable file
    format.  For the omitted details we follow the "JFIF" conventions, revision
    1.02.  A copy of the JFIF spec is available from:
        Literature Department
        C-Cube Microsystems, Inc.
        1778 McCarthy Blvd.
        Milpitas, CA 95035
        phone (408) 944-6300,  fax (408) 944-6314
    A PostScript version of this document is available by FTP at
    ftp://ftp.uu.net/graphics/jpeg/jfif.ps.gz.  There is also a plain text
    version at ftp://ftp.uu.net/graphics/jpeg/jfif.txt.gz, but it is missing
    the figures.

    The TIFF 6.0 file format specification can be obtained by FTP from
    ftp://ftp.sgi.com/graphics/tiff/TIFF6.ps.gz.  The JPEG incorporation scheme
    found in the TIFF 6.0 spec of 3-June-92 has a number of serious problems.
    IJG does not recommend use of the TIFF 6.0 design (TIFF Compression tag 6).
    Instead, we recommend the JPEG design proposed by TIFF Technical Note #2
    (Compression tag 7).  Copies of this Note can be obtained from ftp.sgi.com or
    from ftp://ftp.uu.net/graphics/jpeg/.  It is expected that the next revision
    of the TIFF spec will replace the 6.0 JPEG design with the Note's design.
    Although IJG's own code does not support TIFF/JPEG, the free libtiff library
    uses our library to implement TIFF/JPEG per the Note.  libtiff is available
    from ftp://ftp.sgi.com/graphics/tiff/.


    ARCHIVE LOCATIONS
    =================

    The "official" archive site for this software is ftp.uu.net (Internet
    address 192.48.96.9).  The most recent released version can always be found
    there in directory graphics/jpeg.  This particular version will be archived
    as ftp://ftp.uu.net/graphics/jpeg/jpegsrc.v6b.tar.gz.  If you don't have
    direct Internet access, UUNET's archives are also available via UUCP; contact
    help@uunet.uu.net for information on retrieving files that way.

    Numerous Internet sites maintain copies of the UUNET files.  However, only
    ftp.uu.net is guaranteed to have the latest official version.

    You can also obtain this software in DOS-compatible "zip" archive format from
    the SimTel archives (ftp://ftp.simtel.net/pub/simtelnet/msdos/graphics/), or
    on CompuServe in the Graphics Support forum (GO CIS:GRAPHSUP), library 12
    "JPEG Tools".  Again, these versions may sometimes lag behind the ftp.uu.net
    release.

    The JPEG FAQ (Frequently Asked Questions) article is a useful source of
    general information about JPEG.  It is updated constantly and therefore is
    not included in this distribution.  The FAQ is posted every two weeks to
    Usenet newsgroups comp.graphics.misc, news.answers, and other groups.
    It is available on the World Wide Web at http://www.faqs.org/faqs/jpeg-faq/
    and other news.answers archive sites, including the official news.answers
    archive at rtfm.mit.edu: ftp://rtfm.mit.edu/pub/usenet/news.answers/jpeg-faq/.
    If you don't have Web or FTP access, send e-mail to mail-server@rtfm.mit.edu
    with body
        send usenet/news.answers/jpeg-faq/part1
        send usenet/news.answers/jpeg-faq/part2


    RELATED SOFTWARE
    ================

    Numerous viewing and image manipulation programs now support JPEG.  (Quite a
    few of them use this library to do so.)  The JPEG FAQ described above lists
    some of the more popular free and shareware viewers, and tells where to
    obtain them on Internet.

    If you are on a Unix machine, we highly recommend Jef Poskanzer's free
    PBMPLUS software, which provides many useful operations on PPM-format image
    files.  In particular, it can convert PPM images to and from a wide range of
    other formats, thus making cjpeg/djpeg considerably more useful.  The latest
    version is distributed by the NetPBM group, and is available from numerous
    sites, notably ftp://wuarchive.wustl.edu/graphics/graphics/packages/NetPBM/.
    Unfortunately PBMPLUS/NETPBM is not nearly as portable as the IJG software is;
    you are likely to have difficulty making it work on any non-Unix machine.

    A different free JPEG implementation, written by the PVRG group at Stanford,
    is available from ftp://havefun.stanford.edu/pub/jpeg/.  This program
    is designed for research and experimentation rather than production use;
    it is slower, harder to use, and less portable than the IJG code, but it
    is easier to read and modify.  Also, the PVRG code supports lossless JPEG,
    which we do not.  (On the other hand, it doesn't do progressive JPEG.)


    FILE FORMAT WARS
    ================

    Some JPEG programs produce files that are not compatible with our library.
    The root of the problem is that the ISO JPEG committee failed to specify a
    concrete file format.  Some vendors "filled in the blanks" on their own,
    creating proprietary formats that no one else could read.  (For example, none
    of the early commercial JPEG implementations for the Macintosh were able to
    exchange compressed files.)

    The file format we have adopted is called JFIF (see REFERENCES).  This format
    has been agreed to by a number of major commercial JPEG vendors, and it has
    become the de facto standard.  JFIF is a minimal or "low end" representation.
    We recommend the use of TIFF/JPEG (TIFF revision 6.0 as modified by TIFF
    Technical Note #2) for "high end" applications that need to record a lot of
    additional data about an image.  TIFF/JPEG is fairly new and not yet widely
    supported, unfortunately.

    The upcoming JPEG Part 3 standard defines a file format called SPIFF.
    SPIFF is interoperable with JFIF, in the sense that most JFIF decoders should
    be able to read the most common variant of SPIFF.  SPIFF has some technical
    advantages over JFIF, but its major claim to fame is simply that it is an
    official standard rather than an informal one.  At this point it is unclear
    whether SPIFF will supersede JFIF or whether JFIF will remain the de-facto
    standard.  IJG intends to support SPIFF once the standard is frozen, but we
    have not decided whether it should become our default output format or not.
    (In any case, our decoder will remain capable of reading JFIF indefinitely.)

    Various proprietary file formats incorporating JPEG compression also exist.
    We have little or no sympathy for the existence of these formats.  Indeed,
    one of the original reasons for developing this free software was to help
    force convergence on common, open format standards for JPEG files.  Don't
    use a proprietary file format!


    TO DO
    =====

    The major thrust for v7 will probably be improvement of visual quality.
    The current method for scaling the quantization tables is known not to be
    very good at low Q values.  We also intend to investigate block boundary
    smoothing, "poor man's variable quantization", and other means of improving
    quality-vs-file-size performance without sacrificing compatibility.

    In future versions, we are considering supporting some of the upcoming JPEG
    Part 3 extensions --- principally, variable quantization and the SPIFF file
    format.

    As always, speeding things up is of great interest.

    Please send bug reports, offers of help, etc. to jpeg-info@uunet.uu.net.

************************************************************************************
Celt Codec:
************************************************************************************

    Copyright 2001-2009 Jean-Marc Valin, Timothy B. Terriberry,
                        CSIRO, and other contributors

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:

    - Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.

    - Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
    CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
    LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

************************************************************************************
SPEEX Codes:
************************************************************************************
    SPEEX  © 2002-2003, Jean-Marc Valin/Xiph.Org Foundation
    Redistribution and use in source and binary forms, with or without modification, are permitted 
    provided that the following conditions are met: 
    *   Redistributions of source code must retain the above copyright notice, this list of 
    conditions and the following disclaimer. 
    *   Redistributions in binary form must reproduce the above copyright notice, this list of 
    conditions and the following disclaimer in the documentation and/or other materials 
    provided with the distribution. 
    *   Neither the name of the Xiph.org Foundation nor the names of its contributors may be 
    used to endorse or promote products derived from this software without specific prior 
    written permission. 
    This software is provided by the copyright holders and contributors “as is” and any express or 
    implied warranties, including, but not limited to, the implied warranties of merchantability and 
    fitness for a particular purpose are disclaimed. In no event shall the foundation or contributors be 
    liable for any direct, indirect, incidental, special, exemplary, or consequential damages (including, 
    but not limited to, procurement of substitute goods or services; loss of use, data, or profits; or 
    business interruption) however caused and on any theory of liability, whether in contract, strict 
    liability, or tort (including negligence or otherwise) arising in any way out of the use of this 
    software, even if advised of the possibility of such damage. 

************************************************************************************
google-perftools:
************************************************************************************

    http://code.google.com/p/gperftools/ 

    Copyright (c) 2012, Google Inc.
    All rights reserved.

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are
    met:

        * Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
        * Redistributions in binary form must reproduce the above
    copyright notice, this list of conditions and the following disclaimer
    in the documentation and/or other materials provided with the
    distribution.
        * Neither the name of Google Inc. nor the names of its
    contributors may be used to endorse or promote products derived from
    this software without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    For Google libjingle:
    http://sourceforge.net/projects/libjingle/
    Copyright (c) 2004--2005, Google Inc.
    All rights reserved.

    Redistribution and use in source and binary forms, with or without modification,
    are permitted provided that the following conditions are met:

        * Redistributions of source code must retain the above copyright notice,
          this list of conditions and the following disclaimer.
        * Redistributions in binary form must reproduce the above copyright notice,
          this list of conditions and the following disclaimer in the documentation
          and/or other materials provided with the distribution.
        * The name of the author may not be used to endorse or promote products
          derived from this software without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
    INTERRUPTION)
    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 
    DAMAGE.

************************************************************************************
CakePHP:
************************************************************************************

    CakePHP(tm) :  Rapid Development Framework <http://www.cakephp.org/>
    Copyright 2005-2007,    Cake Software Foundation, Inc.
                1785 E. Sahara Avenue, Suite 490-204
                Las Vegas, Nevada 89104

    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the "Software"),
    to deal in the Software without restriction, including without limitation
    the rights to use, copy, modify, merge, publish, distribute, sublicense,
    and/or sell copies of the Software, and to permit persons to whom the
    Software is furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in
    all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
    DEALINGS IN THE SOFTWARE.

************************************************************************************
LZMA
************************************************************************************

    LZMA SDK 4.40 Copyright (c) 1999-2006 Igor Pavlov (2006-05-01)
    http://www.7-zip.org/
    LZMA SDK is licensed under two licenses:
    1) GNU Lesser General Public License (GNU LGPL)
    2) Common Public License (CPL)
    It means that you can select one of these two licenses and 
    follow rules of that license.
    SPECIAL EXCEPTION:
    Igor Pavlov, as the author of this Code, expressly permits you to 
    statically or dynamically link your Code (or bind by name) to the 
    interfaces of this file without subjecting your linked Code to the 
    terms of the CPL or GNU LGPL. Any modifications or additions 
    to this file, however, are subject to the LGPL or CPL terms.

************************************************************************************
Fast Pow Function
************************************************************************************

    /*
     * (c) Ian Stephenson
     *
     * ian@dctsystems.co.uk
     *
     * Fast pow() reference implementation
     */

    Used with permission from author

    For libantlr3c:
    // [The "BSD licence"]
    // Copyright (c) 2005-2009 Jim Idle, Temporal Wave LLC
    // http://www.temporal-wave.com
    // http://www.linkedin.com/in/jimidle
    //
    // All rights reserved.
    //
    // Redistribution and use in source and binary forms, with or without
    // modification, are permitted provided that the following conditions
    // are met:
    // 1. Redistributions of source code must retain the above copyright
    //    notice, this list of conditions and the following disclaimer.
    // 2. Redistributions in binary form must reproduce the above copyright
    //    notice, this list of conditions and the following disclaimer in the
    //    documentation and/or other materials provided with the distribution.
    // 3. The name of the author may not be used to endorse or promote products
    //    derived from this software without specific prior written permission.
    //
    // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
    // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
    // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
    // IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
    // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
    // NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
    // THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

************************************************************************************
Autodesk® FBX®:
************************************************************************************

    “This software contains Autodesk® FBX® code developed by Autodesk, Inc. Copyright 2012 Autodesk, Inc. 
    All rights, reserved. Such code is provided “as is” and Autodesk, Inc. disclaims any and all warranties, 
    whether express or implied, including without limitation the implied warranties of merchantability, fitness for a 
    particular purpose or non-infringement of third party rights. In no event shall Autodesk, Inc. be liable for any 
    direct, indirect, incidental, special, exemplary, or consequential damages (including, but not limited to, 
    procurement of substitute goods or services; loss of use, data, or profits; or business interruption) however 
    caused and on any theory of liability, whether in contract, strict liability, or tort (including negligence or 
    otherwise) arising in any way out of such code.”

************************************************************************************
OpenSSL:
************************************************************************************

     * This product includes software developed by the OpenSSL Project
     * for use in the OpenSSL Toolkit. (http://www.openssl.org/)
     * This product includes cryptographic software written by Eric Young
     * (eay@cryptsoft.com).  This product includes software written by Tim
     * Hudson (tjh@cryptsoft.com).
    /* ====================================================================
     * Copyright (c) 1998-2008 The OpenSSL Project.  All rights reserved.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     *
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     *
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in
     *    the documentation and/or other materials provided with the
     *    distribution.
     *
     * 3. All advertising materials mentioning features or use of this
     *    software must display the following acknowledgment:
     *    "This product includes software developed by the OpenSSL Project
     *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
     *
     * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be 
    used to
     *    endorse or promote products derived from this software without
     *    prior written permission. For written permission, please contact
     *    openssl-core@openssl.org.
     *
     * 5. Products derived from this software may not be called "OpenSSL"
     *    nor may "OpenSSL" appear in their names without prior written
     *    permission of the OpenSSL Project.
     *
     * 6. Redistributions of any form whatsoever must retain the following
     *    acknowledgment:
     *    "This product includes software developed by the OpenSSL Project
     *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
     *
     * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
     * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
     * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
     * OF THE POSSIBILITY OF SUCH DAMAGE.
     * ====================================================================
     *
     *
     */


    /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
     * All rights reserved.
     *
     * This package is an SSL implementation written
     * by Eric Young (eay@cryptsoft.com).
     * The implementation was written so as to conform with Netscapes SSL.
     *
     * This library is free for commercial and non-commercial use as long as
     * the following conditions are aheared to.  The following conditions
     * apply to all code found in this distribution, be it the RC4, RSA,
     * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
     * included with this distribution is covered by the same copyright terms
     * except that the holder is Tim Hudson (tjh@cryptsoft.com).
     *
     * Copyright remains Eric Young's, and as such any Copyright notices in
     * the code are not to be removed.
     * If this package is used in a product, Eric Young should be given attribution
     * as the author of the parts of the library used.
     * This can be in the form of a textual message at program startup or
     * in documentation (online or textual) provided with the package.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *    "This product includes cryptographic software written by
     *     Eric Young (eay@cryptsoft.com)"
     *    The word 'cryptographic' can be left out if the rouines from the library
     *    being used are not cryptographic related :-).
     * 4. If you include any Windows specific code (or a derivative thereof) from
     *    the apps directory (application code) you must include an 
    acknowledgement:
     *    "This product includes software written by Tim Hudson 
    (tjh@cryptsoft.com)"
     *
     * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * The licence and distribution terms for any publically available version or
     * derivative of this code cannot be changed.  i.e. this code cannot simply be
     * copied and put under another distribution licence
     * [including the GNU Public Licence.]
     */

************************************************************************************
Google protocol buffers
************************************************************************************

    // Protocol Buffers - Google's data interchange format
    // Copyright 2008 Google Inc.  All rights reserved.
    // http://code.google.com/p/protobuf/
    //
    // Redistribution and use in source and binary forms, with or without
    // modification, are permitted provided that the following conditions are
    // met:
    //
    //     * Redistributions of source code must retain the above copyright
    // notice, this list of conditions and the following disclaimer.
    //     * Redistributions in binary form must reproduce the above
    // copyright notice, this list of conditions and the following disclaimer
    // in the documentation and/or other materials provided with the
    // distribution.
    //     * Neither the name of Google Inc. nor the names of its
    // contributors may be used to endorse or promote products derived from
    // this software without specific prior written permission.
    //
    // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    // Author: kenton@google.com (Kenton Varda)
    //  Based on original Protocol Buffers design by
    //  Sanjay Ghemawat, Jeff Dean, and others.

************************************************************************************
Google Snappy
************************************************************************************

    // Copyright 2005 Google Inc. All Rights Reserved.
    //
    // Redistribution and use in source and binary forms, with or without
    // modification, are permitted provided that the following conditions are
    // met:
    //
    //     * Redistributions of source code must retain the above copyright
    // notice, this list of conditions and the following disclaimer.
    //     * Redistributions in binary form must reproduce the above
    // copyright notice, this list of conditions and the following disclaimer
    // in the documentation and/or other materials provided with the
    // distribution.
    //     * Neither the name of Google Inc. nor the names of its
    // contributors may be used to endorse or promote products derived from
    // this software without specific prior written permission.
    //
    // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.