https://developers.google.com/speed/webp/?csw=1
https://chromium.googlesource.com/webm/libwebp/
Additional IP Rights Grant (Patents)"This
implementation" means the copyrightable works
distributed byGoogle as part of the WebM
Project.Google hereby grants to you a perpetual,
worldwide, non-exclusive,no-charge, royalty-free,
irrevocable (except as stated in this section)patent
license to make, have made, use, offer to sell, sell,
import,transfer, and otherwise run, modify and
propagate the contents of thisimplementation of VP8,
where such license applies only to those
patentclaims, both currently owned by Google and
acquired in the future,licensable by Google that are
necessarily infringed by thisimplementation of VP8.
This grant does not include claims that would
beinfringed only as a consequence of further
modification of thisimplementation. If you or your
agent or exclusive licensee institute ororder or agree
to the institution of patent litigation against anyentity
(including a cross-claim or counterclaim in a lawsuit)
allegingthat this implementation of VP8 or any code
incorporated within thisimplementation of VP8
constitutes direct or contributory patentinfringement,
or inducement of patent infringement, then any
patentrights granted to you under this License for this
implementation of VP8shall terminate as of the date
such litigation is filed.
Zlib (1.2.3)
Opera uses zlib as compression libraryThe original
download site for this software is :
http://zlib.netCopyright (C) 1995-2004 Jean-loup
Gailly and Mark Adler 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. Jean-
loup Gailly jloup@gzip.org Mark Adler
madler@alumni.caltech.edu
TPVision is grateful to the groups and individuals
above for their contributions.
_________________________________
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation,
Inc.
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02110-1301, USA
Everyone is permitted to copy and distribute verbatim
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