How to extract every 10th frame from a video?

Question

I have a video and I want to extract every 10th frame as I am getting way too many images.

ffmpeg -i out1.avi -r 1 -f image2 image-%3d.jpeg

How to extract images from video file?

Answer 1

If you want 1/10 of what you have now (when you use -r 1) then use

 -r 0.1

It will get 1 frame every 10 seconds instead of 1 frame every 1 second.

 ffmpeg -i out1.avi -r 0.1 -f image2 image-%3d.jpeg

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EDIT:

If you really what every 10th frame from video then you can use select with modulo 10

ffmpeg -i out1.mp4 -vf "select=not(mod(n\,10))" -vsync vfr image_%03d.jpg

but it may gives more images than before.

If video has 25fps then -r 1 gives image every 25th frame. And if video has 60fps then gives image every 60th frame. So it gives less images then this code which get image every 10th frame.