[FFmpeg-user] Setting the default input framerate in conjunction with -f concat -i filelist.txt

[Evert Vorster]

Hi there.

Just place -r 30 in front if the -i, and it all should work as you intend.

-Evert-

On 19 August 2017 at 10:47, Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:

> 2017-08-18 23:34 GMT+02:00 Davide <davide.denardis at gmail.com>:
> > Dear you all,
> >
> > I am trying to set the input framerate of a sequence of images:
> >
> > if I am working with a single image sequence everything works properly:
> > *ffmpeg -framerate 30 -i folder01/img%05d.jpeg ......*
> >
> > then, because I have more folders
>
> > (and I was unable to get the -i
> > concat:filesequence1|filesequence2 working)
>
> Please elaborate, if the mjpeg demuxer is not
> autodetected, force jpeg pipe with "-f jpeg_pipe".
> (Or are these different files, not just jpeg?)
>
> > I tried to use:
> >
> > *ffmpeg -framerate 30 -f concat -safe 0 -i filelist.txt .....
> > *but I receive a:
> > *Option framerate not found.
> >
> > *then if I omit the "-framerate 30", everything runs smoothly, but ffmpeg
> > defaults to a 25 fps value for the input image sequences.
> >
> > Any ideas on how to fix this?
>
> You are describing a missing feature, the concat demuxer does
> not allow to forward options to the actual demuxers.
>
> Carl Eugen
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
> To unsubscribe, visit link above, or email
> ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".
>



-- 
Evert Vorster
Isometrix Acquistion Superchief