[GTALUG] ffmpeg question

[Aruna Hewapathirane]

<snip>

> >> I thought that something like this may work:
> >> ffmpeg -r 1/5 -i y-01.png -r 1 -i y-02.png -c:v mpeg4 -vf
> "fps=2,format=yuv420p" out.mp4
> >> It does not. The first image is displayed, only.
> >> Kind regards from Poland,
> >> zb.
>
>
zb,

You could create a short, temporary intermediate video for each frame:

ffmpeg -r 1/5 -i y-01.png -c:v mpeg4 -vf "fps=2,format=yuv420p" out.mp4
ffmpeg -r 1/10-i y-02.png -c:v mpeg4 -vf "fps=2,format=yuv420p" out.mp4

5seconds for the first and 10seconds for the second ( and so on and so
forth... )

Then concatenate each video:
FFmpeg FAQ: How can I join video files?
<http://ffmpeg.org/faq.html#How-can-I-join-video-files_003f>
FFmpeg Wiki: How to concatenate (join, merge) media files
<https://trac.ffmpeg.org/wiki/How%20to%20concatenate%20%28join%2C%20merge%29%20media%20files>

This will allow you to do what you need to from the command line but this
is a very awkward and cumbersome way. Probably be much easier to use a
video editor.
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