[FFmpeg-user] alternating two images

[Michael Koch]

>
> ffmpeg -r 1 -loop 1 -i cherry-left.jpg -r 1 -loop 1 -i
> cherry-right.jpg -lavfi
> [0:v]setpts=N*2[a],[1:v]setpts=N*2+1[b],[a][b]interleave /tmp/o.nut

I didn't understand the meaning of the output path, but finally I got it 
working after I replaced

/tmp/o.nut

by

-t 10 -r 4 test.mp4

Thanks,
Michael