Ogg#Ogg codecs

Tarkin is a free experimental lossy video codec from the Ogg codec family of the Xiph.Org Foundation.

The development was started in early 2000 and is set in August 2002 in favor of the sister project Theora again. The project was supported mainly by Jack Moffitt, Christopher Montgomery and Rick Franchuk.

It was named after a character in Star Wars called Wilhuff Tarkin.

Technology

Tarkin is based on three-dimensional wavelet compression. A video block has thereby two spatial and a temporal dimension, which are encoded as a unit with a three-dimensional discrete wavelet transformation. Thus, there is a stark contrast to the traditional and customary by most codecs - even Theora - used method, in which a two-dimensional discrete cosine transform is applied to the frame and in a separate step, which takes place between the images changes and movements ( Motion Compensation ) encodes be.

Tarkin has the FourCC TRKN. The reference implementation was developed in C programming language and released as free software.