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| + | Thanks for the insight. It bnrigs light into the dark! |
| − | '''WebM''' is an audio-video format requiring no patent royalties (something very rare in among [[Audio-video patents|audio-video formats]]). WebM has the backing of organisations such as [[Google]], Mozilla Firefox, Opera, and [[FSF]]. VP8 was originally developed by On2, which was bought by [[Google]], who released the format as [[free software]].
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| − | WebM uses the '''VP8''' video format and the [[Ogg Vorbis]] audio format.
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| − | ==Using and advocating WebM==
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| − | * [http://libreplanet.org/wiki/Group:PlayOgg/WebM_recipe How to upload a video to YouTube and ensure it is made available as WebM]
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| − | * ([[FSF]] will launch [http://playfreedom.org/ PlayFreedom.org] in early 2011)
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| − | ==Technical details==
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| − | WebM defines the overall format, with:
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| − | *The overall file structure based on the [[Matroska]] container
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| − | *Video compressed using the VP8 video codec
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| − | *Audio compressed using the [[Vorbis]] audio codec
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| − | ==Google's WebM software==
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| − | The WebM project claims that WebM is 100% [[free software|free, and open-sourc]]ed under a BSD-style licence.<ref>http://www.webmproject.org/about/</ref>
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| − | ==VP8 video codec==
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| − | VP8 is a [[Audio-video patents|video]] codec and format created by On2 (now owned by [[Google]]) and recently released as [[open source]] under a BSD-like licence. It offers a higher quality alternative to the [[Ogg Theora]] codec, in the battle against the proprietary and patent-encumbered [[H.264]] standard. The Xiph Foundation, which manages development of Ogg Theora, has announced their support for WebM.<ref>{{cite web|url=http://www.xiph.org/press/2010/webm/|title=Xiph.Org announces support for the WebM open media project|quote=The Xiph.Org Foundation is pleased to announce its support of the WebM open media project as a project launch partner. As announced earlier today at the Google I/O Developer Conference, the WebM format combines the VP8 video codec, the Matroska container, and the Vorbis audio codec developed by Xiph into a high-quality, open, unencumbered format for video delivery on the Web. Xiph will continue to contribute to WebM as a whole and collaborate in its further development and deployment.}}</ref>
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| − | ===MPEG LA threats===
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| − | The CEO of [[MPEG|MPEG-LA]], Larry Horn, claims to be preparing a patent pool to be used against VP8, and thus WebM.<ref>http://www.mpegla.com/main/pid/vp8/default.aspx</ref> The threat may not be credible since similar claims were made against [[Ogg Theora]] but never materialised.
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| − | Google countered with a [http://www.webm-ccl.org/ WebM Community Cross-License (CCL) initiative] (25. April 2011).
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| − | ==Related pages on {{SITENAME}}==
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| − | * [[Harm to standards]]
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| − | * [[MPEG video formats]]
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| − | * [[HTML5 and video patents]]
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| − | * [[Use software from 20 years ago]] - the only other possibility for avoiding video patents
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| − | ** [[Video formats from 20 years ago]]
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| − | * [[Ogg Theora]] - another audio-video format, free from patent royalties
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| − | ==External links==
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| − | * [http://www.webmproject.org WebM Project home page]
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| − | * [http://www.on2.com/index.php?599 On2 VP8 home page]
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| − | * [http://en.wikipedia.org/wiki/WebM WebM], '''Wikipedia'''
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| − | * [http://x264dev.multimedia.cx/?p=377 The first in-depth technical analysis of VP8] – a review by a programmer who develops ffmpeg's 3rd party VP8 decoder and x264
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| − | ** [http://www.osnews.com/story/23334/The_In-depth_Technical_Analysis_of_VP8_Counterpoints The In-depth Technical Analysis of VP8; Counterpoints], '''OSNews'''
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| − | * [http://digitaldaily.allthingsd.com/20100520/googles-royalty-free-webm-video-may-not-be-royalty-free-for-long/ Google’s “Royalty-Free” WebM Video May Not Be Royalty-Free For Long], 20 May 2010 '''All Things Digital''' – reports a threat from MPEG-LA
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| − | ** [http://www.streamingmedia.com/Articles/News/Featured-News/WebM-Patent-Fight-Ahead-for-Google-76781.aspx MPEG LA says that 12 patent holders have stepped forward with patents they believe are essential to the VP8 standard. A patent pool license could be next.] 26. July 2011
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| − | ** [http://www.webm-ccl.org/ The WebM Community Cross-License (CCL) initiative]
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| − | ** [http://www.theregister.co.uk/2010/05/20/google_confident_on_vp8_and_patents/ Google backs open codec against patent trolls], 20 May 2010, '''The Register''' - Google replies
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| − | ** [http://www.theregister.co.uk/2010/05/21/mpegla_mulls_patent_license_for_webm/ Google open video codec may face patent clash], 21 May 2010, '''The Register'''
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| − | * [http://carlodaffara.conecta.it/?p=420 An analysis of WebM and its patent risk], 25 May 2010, '''Carlo Daffara'''
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| − | ==References==
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| − | {{reflist}}
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| − | {{footer}}
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| − | [[Category:Free software]]
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