Re: [Cellar] generate a version (0, 1, 3) and version 4 FFV1 document from single source

[Dave Rice <[e-mail]>]

> On Feb 3, 2018, at 2:08 PM, Jerome Martinez <[e-mail]> wrote:
> 
> On 03/02/2018 19:24, Dave Rice wrote:
>> 
>> In the version 4 output there are references to exceptions defined in our work on version 0,1,3. These include all lines starting with “Background”. I suggest resolving these in a subsequent commit, but perhaps the version 4 document need not include these but could only reference exceptions existed in prior version.
> 
> IMO we should remove exceptions in v4, in order to have a easy and coherent bitstream specifications (and I expect that the compression is slightly better without the exceptions, I'll run some tests) so “Background” would be marked v3 doc only, without any reference in v4.
> I'll open a separate thread about that when I do the tests.

FYI, on this issue there was more discussion at https://github.com/FFmpeg/FFV1/pull/102 <https://github.com/FFmpeg/FFV1/pull/102>. The results are now merged in, so the Makefile process for the FFV1 repository will create two documents:

draft-ietf-cellar-ffv1-01: FFV1 Video Coding Format Version 0, 1, and 3
and
draft-ietf-cellar-ffv1-v4-00: FFV1 Video Coding Format Version 4

At this point, all issues in Github related to “FFV1 Version 0, 1, and 3” are resolved, but there are two open pull requests:

https://github.com/FFmpeg/FFV1/pull/87 <https://github.com/FFmpeg/FFV1/pull/87> - minor change in terminology about bitstream components
https://github.com/FFmpeg/FFV1/pull/71 <https://github.com/FFmpeg/FFV1/pull/71> - IANA Considerations

I suggest that once these are pull requests are resolved to increment the version numbering and post draft-ietf-cellar-ffv1-02 for a last call and to post an initial post of draft-ietf-cellar-ffv1-v4-00.

Best Regards,
Dave Rice