On 3/23/2017 12:31 AM, Dave Rice wrote:
Hi Jim,
On Mar 22, 2017, at 9:55 PM, jshup...@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
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Thanks brother.
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