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Peter Saint-Andre 2010-02-17 22:08:28 +00:00
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xep-0266.xml
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@ -173,7 +173,7 @@
<section1 topic='Guidance for Implementors' anchor='guidance'>
<p>Given that both Speex and G.711 are patent-clear, freely implementable, and commonly deployed, this document suggests that implementors strongly consider including support for both codecs in audio applications of Jingle RTP sessions.</p>
<p>The situation regarding video codecs is more murky, and implementors face difficult tradeoffs. While Theora is patent-clear and freely implementable, it is not yet commonly deployed. While Dirac is patent-clear and deployed fairly widely, no RTP packetization format has been defined for it. While deployment of H.264 is fairly common, but it is not patent-clear or freely implementable. For many open-source / free software projects and smaller technology vendors, implementation of H.264 is either impossible (because of patents and licensing restrictions) or prohibitively expensive (because of royalty payments). These developers are strongly encouraged to implement Theora or Dirac and also to urge wider adoption of Theora and Dirac among larger technology vendors. However, this document acknowledges that it may take some time before Theora and Dirac are commonly deployed (especially on mobile devices) and that systems based on H.264 might be dominant in the marketplace for several years. This situation is unfortunate but cannot be directly changed by the XMPP developer community.</p>
<p>The situation regarding video codecs is more murky, and implementors face difficult tradeoffs. While Theora is patent-clear and freely implementable, it is not yet commonly deployed. While Dirac is patent-clear and deployed fairly widely, no RTP packetization format has been defined for it. While deployment of H.264 is fairly common, it is not patent-clear or freely implementable. For many open-source / free software projects and smaller technology vendors, implementation of H.264 is either impossible (because of patents and licensing restrictions) or prohibitively expensive (because of royalty payments). These developers are strongly encouraged to implement Theora or Dirac and also to urge wider adoption of Theora and Dirac among larger technology vendors. However, this document acknowledges that it may take some time before Theora and Dirac are commonly deployed (especially on mobile devices) and that systems based on H.264 might be dominant in the marketplace for several years. This situation is unfortunate but cannot be directly changed by the XMPP developer community.</p>
</section1>
<section1 topic='Recommendations to the XSF' anchor='recommendations'>