User:Ryan Cooley/Theora

THEORA

Theora is an open source and royalty-free video format, being proposed for use in the HTML5 video standard, and by free software advocates as an alternative to the extensively patented, internationally recognized video standards like MPEG-2 Video and H.264/MPEG-4 AVC.

History
Theora is based upon the VP3 codec.

VP3 was originally a proprietary video codec developed by On2 Technologies, comparable in quality and bit rate to MPEG-1 video codecs.

In September, 2001 it was donated to the public as open source, and On2 disclaimed all rights to it, including their patents on the technology. In 2002, On2 entered into an agreement with the Xiph.org Foundation to make VP3 the basis of a new, free video codec, Ogg Theora.

Quality & Performance
Quality is extremely bad

http://forum.doom9.org/archive/index.php/t-146893.html http://www.osnews.com/story/19019/Theora-vs-h.264/ http://rob.opendot.cl/index.php/2009/06/16/chrome-and-theorah-264/ http://forum.doom9.org/archive/index.php/t-146893.html http://etill.net/projects/dirac_theora_evaluation/include/halbach-2009-dirac_theora-paper.pdf http://www.hydrogenaudio.org/forums/index.php?s=&showtopic=70809&view=findpost&p=625394

http://forum.doom9.org/archive/index.php/t-134471.html http://www.w3.org/2007/08/video/positions/Nokia.pdf