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Update libtheora to the 1.1 release.


  • Name: Christopher Montgomery (xhiphmont)
  • Email: cmontgom@redhat.com

Current status

  • Targeted release: Fedora 12
  • Last updated: 2009-06-02
  • Percentage of completion: 0%

Detailed Description

libtheora 1.1 incorporates a substantially improved encoder, codenamed 'Thusnelda'.

Over the last year, Mony has produced a series of detailed reports describing the Thusnelda improvements as they have been developed: http://web.mit.edu/xiphmont/Public/theora/demo2.html http://web.mit.edu/xiphmont/Public/theora/demo3.html http://web.mit.edu/xiphmont/Public/theora/demo4.html http://web.mit.edu/xiphmont/Public/theora/demo5.html http://web.mit.edu/xiphmont/Public/theora/demo6.html http://web.mit.edu/xiphmont/Public/theora/demo7.html

Benefit to Fedora

A lot of positive momentum has been building around open video on the web. With this feature, Fedora becomes more attractive as a platform for producing video content in open formats.


libtheora needs to be updated. All video-encoding applications that support theora will transparently benefit from the improvements in Thusnelda.

How To Test

Use a video-encoding application to produce theora-encoded content. Compare the quality with content produced with libtheora 1.0 and notice the improved quality.

User Experience



Contingency Plan

Revert to libtheora 1.0.


Release Notes

Fedora 11 comes with libtheora 1.1, including the new 'thusnelda' encoder.

Comments and Discussion