    The Source engine, Valve games, and Steam use Third Party code for certain
    functions.  The required legal notices for using such code are reproduced
    below in accordance with Valve's obligations to provide such notices:

    ---------------
    For 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
    //       Info-ZIP releases--including, but not limited to, labeling of the
    //       altered versions with the names "Info-ZIP" (or any variation thereof,
    //       including, but not limited to, different capitalizations),
    //       "Pocket UnZip", "WiZ" or "MacZip" without the explicit permission of
    //       Info-ZIP.  Such altered versions are further prohibited from
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    //
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    //       "UnZipSFX", "WiZ", "Pocket UnZip", "Pocket Zip", and "MacZip" for its
    //       own source and binary releases.
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    ///////////////////////////////////////////////////////////////////////////////

    ----------------------
    For 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.

    ++++++

    For Voice Codec Support:
    -----------------------

    SPEEX   (c) 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.

    For 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.

    ----------------------
    For Google libprotobuf:
    ----------------------

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

    Copyright 2008, 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.

    Code generated by the Protocol Buffer compiler is owned by the owner
    of the input file used when generating it.  This code is not
    standalone and requires a support library to be linked with it.  This
    support library is itself covered by the above license.

    -----------
    For CakePHP:
    -----------

    CakePHP(tm) :  Rapid Development Framework
    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.

    --------
    For 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.

    ---------------------------------------------------
    For the Perl Compatible Regular Expressions Library:
    ---------------------------------------------------

    PCRE LICENCE
    ------------

    PCRE is a library of functions to support regular expressions whose syntax
    and semantics are as close as possible to those of the Perl 5 language.

    Release 7 of PCRE is distributed under the terms of the "BSD" licence, as
    specified below. The documentation for PCRE, supplied in the "doc"
    directory, is distributed under the same terms as the software itself.

    The basic library functions are written in C and are freestanding. Also
    included in the distribution is a set of C++ wrapper functions.

    THE BASIC LIBRARY FUNCTIONS
    ---------------------------

    Written by:       Philip Hazel
    Email local part: ph10
    Email domain:     cam.ac.uk

    University of Cambridge Computing Service,
    Cambridge, England.

    Copyright (c) 1997-2008 University of Cambridge
    All rights reserved.

    THE C++ WRAPPER FUNCTIONS
    -------------------------

    Contributed by:   Google Inc.

    Copyright (c) 2007-2008, Google Inc.
    All rights reserved.

    THE "BSD" LICENCE
    -----------------

    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 University of Cambridge nor the name of Google
          Inc. nor the names of their 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.

    End

    -------------------------------------------------
    For the Chromium Embedded Framework (CEF) library:
    -------------------------------------------------

    Source code for the version of CEF and Chromium used by this application can
    be found at http://developer.valvesoftware.com/wiki/Chromium_Embedded_Framework.

    // Copyright (c) 2008-2020 Marshall A. Greenblatt. Portions Copyright (c)
    // 2006-2009 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 name Chromium Embedded
    // Framework 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 Sitemap Generator:
    ----------------------------

    // Copyright 2009 Google Inc.
    //
    // Licensed under the Apache License, Version 2.0 (the "License");
    // you may not use this file except in compliance with the License.
    // You may obtain a copy of the License at
    //
    //      http://www.apache.org/licenses/LICENSE-2.0
    //
    // Unless required by applicable law or agreed to in writing, software
    // distributed under the License is distributed on an "AS IS" BASIS,
    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    // See the License for the specific language governing permissions and
    // limitations under the License.

    ----------------------
    For Skype's SILK codec:
    ----------------------

    /***********************************************************************
    Copyright (c) 2006-2010, Skype Limited. All rights reserved.
    Redistribution and use in source and binary forms, with or without
    modification, (subject to the limitations in the disclaimer below)
    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 Skype Limited, nor the names of specific
    contributors, may be used to endorse or promote products derived from
    this software without specific prior written permission.
    NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
    BY THIS LICENSE. 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 JSON_parser:
    ---------------

    /*
    Copyright (c) 2005 JSON.org

    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 shall be used for Good, not Evil.

    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.
    */

    ----------
    For TagLib:
    ----------

    /***************************************************************************
        copyright            : (C) 2002 - 2008 by Scott Wheeler
        email                : wheeler@kde.org
     ***************************************************************************/

    /***************************************************************************
     *   This library is free software; you can redistribute it and/or modify  *
     *   it under the terms of the GNU Lesser General Public License version   *
     *   2.1 as published by the Free Software Foundation.                     *
     *                                                                         *
     *   This library is distributed in the hope that it will be useful, but   *
     *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
     *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
     *   Lesser General Public License for more details.                       *
     *                                                                         *
     *   You should have received a copy of the GNU Lesser General Public      *
     *   License along with this library; if not, write to the Free Software   *
     *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA         *
     *   02110-1301  USA                                                       *
     *                                                                         *
     *   Alternatively, this file is available under the Mozilla Public        *
     *   License Version 1.1.  You may obtain a copy of the License at         *
     *   http://www.mozilla.org/MPL/                                           *
     ***************************************************************************/

    ------------------------------
    For VPX Multi-Format Codec SDK:
    ------------------------------

    Copyright (c) 2010, 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 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
    HOLDER 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 libvorbis:
    -------------

    Copyright (c) 2002-2008 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.

    ----------
    For libogg:
    ----------

    Copyright (c) 2002, 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.

    --------------
    For libnestegg:
    --------------

    Copyright  (c) 2010 Mozilla Foundation

    Permission to use, copy, modify, and distribute this software for any
    purpose with or without fee is hereby granted, provided that the above
    copyright notice and this permission notice appear in all copies.

    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

    -----------
    For expatpp:
    -----------

    Expatpp library copyright 1999-2003 AD Software. Expatpp is subject to the
    Mozilla Public License v. 1.0.  Expatpp is an Original Work which works with
    Expat, Copyright 1998, 1999 James Clark. Expatpp is available from
    http://www.oofile.com.au/xml/expatpp.html.

    --------------------
    For Autodesk FBX SDK:
    --------------------

    This software contains Autodesk(r) FBX(r) 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.

    ------------------
    For RAD Game Tools:
    ------------------

    Uses Miles Sound System. Copyright (c) 1991-2001 by RAD Game Tools, Inc.

    -------
    For SDL:
    -------

    Simple DirectMedia Layer
    Copyright (C) 1997-2013 Sam Lantinga

    This software is provided 'as-is', without any express or implied
    warranty.  In no event will the authors be held liable for any damages
    arising from the use of 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. The origin of this software must not be misrepresented; you must not
       claim that you wrote the original software. If you use this software
       in a product, an acknowledgment in the product documentation would be
       appreciated but is not required.
    2. Altered source versions must be plainly marked as such, and must not be
       misrepresented as being the original software.
    3. This notice may not be removed or altered from any source distribution.

    ---------
    For ffmpeg:
    ---------

    Most files in FFmpeg are under the GNU Lesser General Public License version 2.1
    or later (LGPL v2.1+). Read the file `COPYING.LGPLv2.1` for details. Some other
    files have MIT/X11/BSD-style licenses. In combination the LGPL v2.1+ applies to
    FFmpeg.

    ----------
    For libyuv:
    ----------

    Copyright 2011 The LibYuv Project Authors. 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 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
    HOLDER 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 x86inc.asm:
    --------------

    ;*****************************************************************************
    ;* x86inc.asm: x264asm abstraction layer
    ;*****************************************************************************
    ;* Copyright (C) 2005-2012 x264 project
    ;*
    ;* Authors: Loren Merritt
    ;*          Anton Mitrofanov
    ;*          Jason Garrett-Glaser
    ;*          Henrik Gramner
    ;*
    ;* Permission to use, copy, modify, and/or distribute this software for any
    ;* purpose with or without fee is hereby granted, provided that the above
    ;* copyright notice and this permission notice appear in all copies.
    ;*
    ;* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    ;* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
    ;* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
    ;* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    ;* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
    ;* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    ;* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
    ;*****************************************************************************

    --------
    For Opus:
    --------

    Copyright 2001-2011 Xiph.Org, Skype Limited, Octasic,
                        Jean-Marc Valin, Timothy B. Terriberry,
                        CSIRO, Gregory Maxwell, Mark Borgerding,
                        Erik de Castro Lopo

    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 Internet Society, IETF or IETF Trust, nor the
    names of specific 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.

    Opus is subject to the royalty-free patent licenses which are
    specified at:

    Xiph.Org Foundation:
    https://datatracker.ietf.org/ipr/1524/

    Microsoft Corporation:
    https://datatracker.ietf.org/ipr/1914/

    Broadcom Corporation:
    https://datatracker.ietf.org/ipr/1526/

    --------
    For x264:
    --------

    The Steam Client includes video encoding technology provided by the x264
    Commercial Software. By activating this capability, you agree to the following
    EULA terms:

    1. You are granted a limited, non-exclusive, non-transferable license to run one
    copy of the object code version of the x264 Commercial Software on one machine,
    device, or instrument at a time, solely as integrated and for running in
    combination with the Integrated Product.

    2. You are allowed to make unencrypted copies of the x264 Commercial Software
    only for backup and archival purposes.

    3. You are prohibited from: (a) copying unencrypted versions of the x264
    Commercial Software onto any public or distributed network; (b) using the x264
    Commercial Software to operate in or as a time-sharing, outsourcing, service
    bureau, application service provider or managed service provider environment;
    (c) using the x264 Commercial Software as a standalone application or other than
    as integrated into the Integrated Product under this license; (d) changing any
    proprietary rights notices which appear in the x264 Commercial Software or the
    Integrated Product; or (e) modifying the x264 Commercial Software.

    4. All third party licensors and suppliers retain all right, title and interest
    in third party software and all copies thereof, including all copyright and
    other intellectual property rights.

    5. You are not permitted to transfer the license granted by this EULA.

    6. You are required to comply with all applicable export laws and regulations.

    7. You must immediately destroy all copies of the x264 Commercial Software upon
    termination of the EULA.

    -------------------
    For Intel Media SDK:
    -------------------

    Copyright (C) 2007-2013 Intel Corporation.  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 Intel Corporation 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 INTEL CORPORATION "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 INTEL CORPORATION 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 FontConfig:
    -------------------

    fontconfig/COPYING

    Copyright © 2000,2001,2002,2003,2004,2006,2007 Keith Packard
    Copyright © 2005 Patrick Lam
    Copyright © 2009 Roozbeh Pournader
    Copyright © 2008,2009 Red Hat, Inc.
    Copyright © 2008 Danilo Šegan
    Copyright © 2012 Google, Inc.

    Permission to use, copy, modify, distribute, and sell this software and its
    documentation for any purpose is hereby granted without fee, provided that
    the above copyright notice appear in all copies and that both that
    copyright notice and this permission notice appear in supporting
    documentation, and that the name of the author(s) not be used in
    advertising or publicity pertaining to distribution of the software without
    specific, written prior permission.  The authors make no
    representations about the suitability of this software for any purpose.  It
    is provided "as is" without express or implied warranty.

    THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
    INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
    EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
    CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
    DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
    TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
    PERFORMANCE OF THIS SOFTWARE.

    -------------------
    For FreeType:
    -------------------

        Portions of this software are copyright © 2014 The FreeType
        Project (www.freetype.org).  All rights reserved.

    -------------------
    For HarfBuzz:
    -------------------
    HarfBuzz is licensed under the so-called "Old MIT" license.  Details follow.
    For parts of HarfBuzz that are licensed under different licenses see individual
    files names COPYING in subdirectories where applicable.

    Copyright © 2010,2011,2012  Google, Inc.
    Copyright © 2012  Mozilla Foundation
    Copyright © 2011  Codethink Limited
    Copyright © 2008,2010  Nokia Corporation and/or its subsidiary(-ies)
    Copyright © 2009  Keith Stribley
    Copyright © 2009  Martin Hosken and SIL International
    Copyright © 2007  Chris Wilson
    Copyright © 2006  Behdad Esfahbod
    Copyright © 2005  David Turner
    Copyright © 2004,2007,2008,2009,2010  Red Hat, Inc.
    Copyright © 1998-2004  David Turner and Werner Lemberg

    For full copyright notices consult the individual files in the package.

    Permission is hereby granted, without written agreement and without
    license or royalty fees, to use, copy, modify, and distribute this
    software and its documentation for any purpose, provided that the
    above copyright notice and the following two paragraphs appear in
    all copies of this software.

    IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
    DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
    ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
    IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
    DAMAGE.

    THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
    BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
    FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
    ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
    PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

    -------------------
    For libffi:
    -------------------
    libffi - Copyright (c) 1996-2014  Anthony Green, Red Hat, Inc and others.
    See source files for details.

    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
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    -------------------
    For glib:
    -------------------
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    That's all there is to it!

    -------------------
    For pango:
    -------------------
    		  GNU LIBRARY GENERAL PUBLIC LICENSE
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