[FFmpeg-user] command for taking pictures at second 1, 15 ,30?

[James Darnley]

On 2019-05-23 21:54, erwin mueller via ffmpeg-user wrote:
>  Hello,
> may I please ask for a one-line command.My two lines aren't working. I guess it is a filename issue.But I am sure there is a much smarter way to solve it:
> 

> Output #0, image2, to '"/home/pi/cam/img%03d.jpg"':

> Output #1, image2, to '"/home/pi/cam/img%03d.jpg"':

Why do you think writing to the same file twice will work as expected?
The first file will will be /home/pi/cam/img001.jpg for both outputs.