FFV1 Video Coding Format Version 4
draft-ietf-cellar-ffv1-v4-01

• Status
• IESG evaluation record
• IESG writeups
• Email expansions
• History

• Versions
• 00
• 01

cellar                                                    M. Niedermayer
Internet-Draft
Intended status: Standards Track                                 D. Rice
Expires: January 28, 2019
                                                             J. Martinez
                                                           July 27, 2018

                   FFV1 Video Coding Format Version 4
                      draft-ietf-cellar-ffv1-v4-01

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.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on January 28, 2019.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of

Niedermayer, et al.     Expires January 28, 2019                [Page 1]
Internet-Draft                    FFV1                         July 2018

   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Notation and Conventions  . . . . . . . . . . . . . . . . . .   4
     2.1.  Definitions . . . . . . . . . . . . . . . . . . . . . . .   4
     2.2.  Conventions . . . . . . . . . . . . . . . . . . . . . . .   5
       2.2.1.  Pseudo-code . . . . . . . . . . . . . . . . . . . . .   5
       2.2.2.  Arithmetic Operators  . . . . . . . . . . . . . . . .   5
       2.2.3.  Assignment Operators  . . . . . . . . . . . . . . . .   6
       2.2.4.  Comparison Operators  . . . . . . . . . . . . . . . .   6
       2.2.5.  Mathematical Functions  . . . . . . . . . . . . . . .   7
       2.2.6.  Order of Operation Precedence . . . . . . . . . . . .   7
       2.2.7.  Range . . . . . . . . . . . . . . . . . . . . . . . .   8
       2.2.8.  NumBytes  . . . . . . . . . . . . . . . . . . . . . .   8
       2.2.9.  Bitstream Functions . . . . . . . . . . . . . . . . .   8
   3.  General Description . . . . . . . . . . . . . . . . . . . . .   8
     3.1.  Border  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     3.2.  Samples . . . . . . . . . . . . . . . . . . . . . . . . .   9
     3.3.  Median Predictor  . . . . . . . . . . . . . . . . . . . .   9
     3.4.  Context . . . . . . . . . . . . . . . . . . . . . . . . .  10
     3.5.  Quantization Table Sets . . . . . . . . . . . . . . . . .  11
     3.6.  Quantization Table Set Indexes  . . . . . . . . . . . . .  11
     3.7.  Color spaces  . . . . . . . . . . . . . . . . . . . . . .  11
       3.7.1.  YCbCr . . . . . . . . . . . . . . . . . . . . . . . .  11
       3.7.2.  RGB . . . . . . . . . . . . . . . . . . . . . . . . .  12
     3.8.  Coding of the Sample Difference . . . . . . . . . . . . .  13
       3.8.1.  Range Coding Mode . . . . . . . . . . . . . . . . . .  13
       3.8.2.  Golomb Rice Mode  . . . . . . . . . . . . . . . . . .  17
   4.  Bitstream . . . . . . . . . . . . . . . . . . . . . . . . . .  19
     4.1.  Parameters  . . . . . . . . . . . . . . . . . . . . . . .  20
       4.1.1.  version . . . . . . . . . . . . . . . . . . . . . . .  21
       4.1.2.  micro_version . . . . . . . . . . . . . . . . . . . .  22
       4.1.3.  coder_type  . . . . . . . . . . . . . . . . . . . . .  23
       4.1.4.  state_transition_delta  . . . . . . . . . . . . . . .  23
       4.1.5.  colorspace_type . . . . . . . . . . . . . . . . . . .  23
       4.1.6.  chroma_planes . . . . . . . . . . . . . . . . . . . .  24
       4.1.7.  bits_per_raw_sample . . . . . . . . . . . . . . . . .  24
       4.1.8.  log2_h_chroma_subsample . . . . . . . . . . . . . . .  24