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Encyclopedia > Ogg Tarkin

Tarkin is an experimental lossy video codec formerly under development by the Xiph.org Foundation. Tarkin has been put on hold, with Theora becoming the main focus for video encoding.


Tarkin is based on 3-D wavelet compression. A block of video has three dimensions, two spatial and one temporal, and is encoded as a unit with a 3-D discrete wavelet transform. This is in stark contrast to the more traditional method used in Theora and most other video codecs of doing a 2-D discrete cosine transform on single frames of video and doing inter-frame differences and perhaps motion compensation in a separate step.


Tarkin was named after Grand Moff Tarkin from the movie Star Wars.


External link

  • Tarkin development mailing list (http://www.xiph.org/archives/tarkin-dev/) (currently sleeping)

  Results from FactBites:
 
Ogg - The Encyclopedia (1698 words)
Ogg is a patent-free, fully open and standardised multimedia bitstream container format designed for efficient streaming and manipulation (concatenation and muxing) by the Xiph.Org Foundation.
Files ending in the.ogg extension may be of any Ogg media filetype, and because the format is free, Ogg's various codecs have been incorporated into a number of different free and commercial media players as well as portable media players from different manufacturers.
Although Ogg hasn't reached anywhere near the ubiquity of the MPEG standards (e.g.: MP3), as of 2006, it is commonly used to encode free content (such as free music, multimedia on Wikimedia projects and Creative Commons files) and has started to be supported by a significant minority of digital audio players.
BIGpedia - Ogg - Encyclopedia and Dictionary Online (460 words)
Ogg is a patent-free, fully open multimedia bitstream container designed for efficient streaming and storage.
The Ogg bitstream format, spearheaded by the Xiph.org Foundation, has been created as the framework of a larger initiative aimed at developing a set of components for the coding and decoding of multimedia content which are both freely available and freely re-implementable in software.
Independent Ogg implementations are used in several projects such as RealPlayer and a set of DirectShow filters.
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