Accessibility/Video Codecs: Difference between revisions

Accessibility/Video Codecs (view source)

Revision as of 06:09, 21 September 2008

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 Ogg is being developed by Xiph.org. Xiph.org have not made a decision yet on how subtitles and captions are best to be supported inside Ogg.
-Ogg itself supports CMML, the Continuous Media Markup Language developed by the proposed grantee which is more HTML-like and includes support for hyperlinks. It has been considered to be used for captions and subtitles, but the specifications are still in development. It has to be re-assessed under the current accessibility requirements whether CMML or an extended version of CMML is a useful solution to our problems. A very interesting implementation and use of many of the CMML/Annodex ideas is MetavidWiki (see http://metavid.ucsc.edu/), which is an open source wiki-style social annotation authoring tool.
+Ogg itself supports CMML, the Continuous Media Markup Language which is HTML-like and includes support for hyperlinks. It has been considered for captions and subtitles, but the specifications are still in development.
-Further, Ogg recently added Kate, a codec for karaoke with animated text and images. Kate defines its own file format for specifying karaoke and animations. Experience from the implementation of Kate needs to be included in an accessibility solution for Ogg. We may even work together with the Kate developer to solve this larger problem.
+It has to be re-assessed under the current accessibility requirements whether CMML or an extended version of CMML is a useful solution to accessibility problems. A very interesting implementation and use of many of the CMML/Annodex ideas is MetavidWiki (see http://metavid.ucsc.edu/), which is an open source wiki-style social annotation authoring tool.
+Further, Ogg recently added Kate, a codec for karaoke with animated text and images. Kate defines its own file format for specifying karaoke and animations. Experience from the implementation of Kate needs to be included in an accessibility solution for Ogg.
 There is currently no implementation of W3C Timed Text (TT) for Ogg or of any of the other subtitling formats.
--- What is involved with creating a caption format for Ogg ==
+== What is involved with creating a caption format for Ogg ==
 Definition of inclusion of a text stream such as W3C TT into Ogg requires a so-called media mapping: