Licensing


 * PS3 licensing
 * PS4 licensing

The Playstation Vita uses open source available material, for most of its system resources, listed below:

Notes for readers/editors:

Bold term (left) with generic/wiki link, followed by more specific link if possible.

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 * base64: is a utility to encode and decode base64 files.
 * [blist:] web based relational data base?
 * bzip2: is a free and open-source file compression program.
 * cJSON: is an ultra-lightweight, portable, single-file, simple-as-can-be ANSI-C compliant JSON parser.
 * [FreeBSD:]
 * FreeType 2: is a software font engine.
 * giflib: is a library for rendering and generating GIF image files.
 * Jerasure version 1.2A: is a Library in C/C++ Facilitating Erasure Coding for Storage Applications.
 * libjpeg: is a widely used free software library written in C which implements JPEG.
 * libtiff: is a library for reading and writing Tagged Image File Format (abbreviated TIFF) files.
 * libusrsctp:
 * MD5: is a message-digest algorithm.
 * NetBSD: is an open-source, Unix-like operating system.
 * CELT (Opus): is a interactive audio codec.
 * Protocol Buffers: are a method of serializing structured data.
 * squish: is an open source DXT compression.
 * strlcpy is a C string handling (which copies a string to a destination buffer)
 * zlib: is a software library used for data compression, written by Jean-loup Gailly (compression) and Mark Adler (decompression).

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 * libical: is an Open Source (MPL/LGPL) implementation of the IETF's iCalendar Calendaring and Scheduling protocols.

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 * ICU: is a mature, widely used set of C/C++ and Java libraries providing Unicode and Globalization support.

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 * cairo: is a 2D graphics library used to provide a vector graphics-based (&lt;=1.81 / 2.00-3.20 / =&gt;3.30)
 * cURL: is a computer software project providing a library and command-line tool for transferring data using various protocols.
 * [dtoa:]
 * [expat:]
 * FreeType 2: is a software font engine.
 * ICU: is a mature, widely used set of C/C++ and Java libraries providing Unicode and Globalization support.
 * libjpeg: is a widely used free software library written in C which implements JPEG.
 * libjpeg-turbo
 * libxml2: is a software library for parsing XML documents.
 * [OpenSSL:]
 * [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.
 * pixman: is a low-level software library for pixel manipulation.
 * Webkit (&lt;=1.81 / 2.00-3.20 / 3.30-3.36 / 3.50)
 * zlib: is a software library used for data compression, written by Jean-loup Gailly (compression) and Mark Adler (decompression).

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 * OpenCV: is a library of programming functions mainly aimed at real-time computer vision.

PlayStation Mobile

 * [libYAML:]
 * Mono class libraries: are class libraries.
 * Mono VM: is a free and open source project to create an Ecma standard-compliant, .NET Framework-compatible set of tools.
 * In compliance with the LGPL, the source code of the open source software is made available to you. For request, please send e-mail to: pss_opensource_info@scei.co.jp with “Mono LGPL Request” in the subject line. In the body of the e-mail include your name and e-mail address.

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 * [Boost:]
 * FLANN: is a library for performing fast approximate nearest neighbor searches in high dimensional spaces.
 * OpenCV: is a library of programming functions mainly aimed at real-time computer vision.

PlayStation Mobile Development Assistant

 * giflib
 * libjpeg
 * libtiff
 * libYAML
 * Mono Class Libraries
 * Mono Virtual Machine
 * squish

See http://scei.co.jp/legal/ (license agreement & terms of service/use, about ratings and parental controls...)

See also http://manuals.playstation.net/document/en/psvita/notices.html for Intellectual property notices