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It’s the story of an experimental video codec, built on the Y′COCG colour space and designed for restoration purposes. We do use the unofficial FourCC «YCOG» for this video codec.
This video codec is developed since early 2014 by Reto Kromer, who first presented it publicly in 2015, but the C library was called «openYCoCg» only two years later.1 An alpha is currently tested. The source code and its brew formula will be freely available on our GitHub repository, as soon as a public beta will be released.
A Little Context
An alpha release is currently tested by some restoration facilities and archives located in Asia, Europe and North America (often by using a plug-in for the Diamant-Film restoration suite). At present, it supports two different bit-depths: