[x265] rest: Update introduction.rst, clarifying purpose, adding legal notices

[Tom Vaughan]

diff -r dcf74ea39e31 doc/reST/introduction.rst

--- a/doc/reST/introduction.rst    Sat May 03 15:08:24 2014 -0500

+++ b/doc/reST/introduction.rst  Sun May 04 15:54:23 2014 -0700

@@ -1,52 +1,77 @@

-************

-Introduction

-************

-

-Increase in demand for high resolution video along with increase in the

-consumption of video can be met only with the supply of a high

-efficiency codec. The x265 codec from MCW aims at providing the most

-efficient video encoder with the highest possible quality at even the

-lowest given bit rate.

-

-About HEVC

-==========

-

-The High Efficiency Video Coding (HEVC) is the latest generation video

-compression standard. This standard was developed by the ISO/IEC Moving

-Picture Experts Group (MPEG) and ITU-T Video Coding Experts Group

-(VCEG), through their Joint Collaborative Team on Video Coding (JCT-VC).

-HEVC is also known as ISO/IEC 23008-2 MPEG-H Part 2 and ITU-T H.265.

-HEVC provides superior video quality and up to twice the data

-compression as the previous standard (H.264/MPEG-4 AVC). HEVC can

-support 8K Ultra High Definition video, with a picture size up to

-8192x4320 pixels.

-

-About x265

-==========

-

-The primary objective of x265 is to become the best H.265/HEVC encoder

-available anywhere, offering the highest compression efficiency and the

-highest performance on a wide variety of hardware platforms. The x265

-encoder is available as an open source library, published under the

-GPLv2 license. It is also available under a commercial license similar

-to the x264s commercial license.

-

-x265 is developed by `MulticoreWare <http://www.multicorewareinc.com>`_,
leaders

-in high performance software solutions, with backing from leading video
technology

-providers including `Telestream <http://www.telestream.com>`_ and

-`Doremi Labs <http://www.doremilabs.com>`_ (and other companies who want
to remain

-anonymous at this time), and with contributions from open source
developers.

-x265 leverages many of the outstanding video encoding features and
optimizations

-from the x264 AVC encoder project.

-

-The x265 software is available for free under the GNU GPL 2 license,

-from https://bitbucket.org/multicoreware/x265.  For commercial companies

-that wish to distribute x265 without being subject to the open source

-requirements of the GPL 2 license, commercial licenses are available

-with competitive terms.  Contact license @ x265.com to inquire about

-commercial license terms.

-

-While x265 is primarily designed as a video encoder software library, a

-command-line executable is provided to facilitate testing and

-development.  We expect x265 to be utilized in many leading video

-hardware and software products and services in the coming months.

+************

+Introduction

+************

+

+Increasing demand for high definition and ultra-high definition video,

+along with an increasing desire for video on demand has led to exponential

+growth in demand for bandwidth and storage requirements.  These challenges

+can be met by the new High Efficiency Video Coding (HEVC) standard, also
known

+as H.265. The x265 HEVC encoder project was launched by MulticoreWare in
2013,

+aiming to provide the most efficient, highest performance HEVC video
encoder.

+

+About HEVC

+==========

+

+The High Efficiency Video Coding (HEVC) was developed by the ISO/IEC Moving

+Picture Experts Group (MPEG) and ITU-T Video Coding Experts Group

+(VCEG), through their Joint Collaborative Team on Video Coding (JCT-VC).

+HEVC is also known as ISO/IEC 23008-2 MPEG-H Part 2 and ITU-T H.265.

+HEVC provides superior video quality and up to twice the data

+compression as the previous standard (H.264/MPEG-4 AVC).  HEVC can

+support 8K Ultra High Definition video, with a picture size up to

+8192x4320 pixels.

+

+About x265

+==========

+

+The primary objective of x265 is to become the best H.265/HEVC encoder

+available anywhere, offering the highest compression efficiency and the

+highest performance on a wide variety of hardware platforms. The x265

+encoder is available as an open source library, published under the

+GPLv2 license. It is also available under a commercial license, enabling

+commercial companies to utilize and distribute x265 in their solutions
without

+being subject to the restrictions of the GPL license.

+

+x265 is developed by `MulticoreWare <http://www.multicorewareinc.com>`_,
leaders

+in high performance software solutions, with backing from leading video
technology

+providers including `Telestream <http://www.telestream.com>`_ and

+`Doremi Labs <http://www.doremilabs.com>`_ (and other companies who want
to remain

+anonymous at this time), and with contributions from open source
developers.

+x265 leverages many of the outstanding video encoding features and
optimizations

+from the x264 AVC encoder project.

+

+The x265 software is available for free under the GNU GPL 2 license,

+from https://bitbucket.org/multicoreware/x265.  For commercial companies

+that wish to distribute x265 without being subject to the open source

+requirements of the GPL 2 license, commercial licenses are available

+with competitive terms.  Contact license @ x265.com to inquire about

+commercial license terms.

+

+While x265 is primarily designed as a video encoder software library, a

+command-line executable is provided to facilitate testing and

+development.  We expect x265 to be utilized in many leading video

+hardware and software products and services in the coming months.

+

+LEGAL NOTICES

+==========

+The x265 software is owned and copyrighted by MulticoreWare, Inc.

+MulticoreWare is committed to offering the x265 software under the

+GNU GPL v2 license.  Companies who do not wish to integrate the x265
Software

+in their products under the terms of the GPL license can contact
MulticoreWare

+(license @ x265.com) to obtain a commercial license agreement.  Companies
who

+use x265 under the GPL may also wish to work with MulticoreWare to
accelerate

+the development of specific features or optimized support for specific
hardware

+or software platforms, or to contract for support.

+

+The GNU GPL v2 license or the x265 commercial license agreement govern
your

+rights to access the copyrighted x265 software source code, but do not
cover

+any patents that may be applicable to the function of binary executable
software

+created from the x265 source code.  You are responsible for understanding
the

+laws in your country, and for licensing all applicable patent rights
needed for

+use or distribution of software applications created from the x265 source
code.

+A good place to start is with the Motion Picture Experts Group - Licensing

+Authority - HEVC Licensing Program.

+

+x265 is a registered trademark of MulticoreWare, Inc.

+The x265 logo is a trademark of MulticoreWare, and may only be used with
explicit

+written permission.  All rights reserved.
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