%% You should probably cite rfc9043 instead of this I-D.
@techreport{ietf-cellar-ffv1-00,
    number =    {draft-ietf-cellar-ffv1-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-cellar-ffv1/00/},
    author =    {Michael Niedermayer and Dave Rice and Jérôme Martinez},
    title =     {{FF Video Codec 1}},
    pagetotal = 39,
    year =      2017,
    month =     jul,
    day =       3,
    abstract =  {This document defines FFV1, a lossless intra-frame video encoding format. FFV1 is designed to efficiently compress video data in a variety of pixel formats. Compared to uncompressed video, FFV1 offers storage compression, frame fixity, and self-description, which makes FFV1 useful as a preservation or intermediate video format.},
}