[FFmpeg-user] how to see what version of ffv1

[Dave Rice]

Hi Jim,

> On Mar 22, 2017, at 9:55 PM, jshupert at theppsgroup.com wrote:
> 
> Friends,
> 3 Qs
> q1
> I am wondering how I can tell what version of ffv1 a file is encoded with?
> 
> I find a ticket 1534
> https://trac.ffmpeg.org/ticket/1534
> that seems to have the same concern
> ffprobe -show_streams  does *not show that a file was made with

The comments of the ticket also provide a solution.

You could also use `ffprobe -i <input_video> -debug 1`. There’s some documentation on that at https://trac.ffmpeg.org/wiki/Encode/FFV1 <https://trac.ffmpeg.org/wiki/Encode/FFV1>.

> q2
> is it true that the following command will create a file with ffv1 version 3?
> ffmpeg -i <input> -vcodec ffv1 -level 3 -coder 1 <outfile>

Yes.

> q3
> how can i see that my ffmpeg compile has ffv1 version 3 capability

Is it after https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/abe76b851c05eea8743f6c899cbe5f7409b0f301 <https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/abe76b851c05eea8743f6c899cbe5f7409b0f301> ?

Or if you run `ffmpeg -h encoder=ffv1` do you see the -slicecrc option?
Dave