# Libmpeg2 > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Libmpeg2 > Markdown URL: https://mediated.wiki/source/Libmpeg2.md > Source: https://en.wikipedia.org/wiki/Libmpeg2 > Source revision: 1296340835 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) {{Short description|Free and open source software library for decoding MPEG-1 and MPEG-2 video data}} '''libmpeg2''' is a [free and open source software](/source/free_and_open_source_software) [library](/source/Library_(computer_science)) for decoding [MPEG-1](/source/MPEG-1) and [MPEG-2](/source/MPEG-2) video streams. libmpeg2 is released under the terms of the [GNU GPL](/source/GNU_GPL) license. ==Legality and software patents== Since the libmpeg2 [source code](/source/source_code) library is released under free and open source license it is legally redistributable. However, the MPEG-2 compression algorithm method is owned by the [MPEG Licensing Authority](/source/MPEG_Licensing_Authority) and are in some countries protected by [software patent](/source/software_patent)s. Absent such a licence from the MPEG Licensing Authority, it could possibly be illegal in certain countries to distribute compiled versions of libmpeg2 for the purpose of decoding [MPEG-1](/source/MPEG-1) and/or [MPEG-2](/source/MPEG-2) video streams. In February 2018, all MPEG-2 patents have expired for any country except Malaysia and the Philippines.{{cite web |title=MPEG-2 Patent List |url=http://www.mpegla.com/main/programs/M2/Documents/m2-att1.pdf |access-date=2018-11-08 |archive-url=https://web.archive.org/web/20110405220357/http://www.mpegla.com/main/programs/m2/Documents/m2-att1.pdf |archive-date=2011-04-05 |url-status=dead }} ==References== {{Reflist}} ==External links== * [http://libmpeg2.sourceforge.net libmpeg2 official website] Category:Video libraries --- Adapted from the Wikipedia article [Libmpeg2](https://en.wikipedia.org/wiki/Libmpeg2) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Libmpeg2?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.