The FFV1 lossless video codec specification.
CSS Makefile GCC Machine Description
Latest commit d21aafc Sep 6, 2016 @JeromeMartinez JeromeMartinez committed with Michael Niedermayer Median Predictor formula update
In order to be compatible with files in the wild

FFV1 Specification


This repository manages the development of specification documents for FFV1, a lossless intra-frame video codec. Information within this repository should be considered in draft form. The current authoritative specificiation for FFV1 may be found at


The FFV1 specification was iniitally written in lyx. In July 2015 the formatting of the specification was transitioned to Markdown. Propering PDF and HTML rendering has been tested with requires pandoc version and higher.