How to extract only 3 video frames at 0,5,10 seconds using FFMPEG?

Question

Command I am using:

ffmpeg -i input -c:v libx264 -movflags +faststart -preset slow -crf 22 -b:v 500k -c:a libvo_aacenc -b:a 128k "out.mp4" -r 1 -t 3 -ss 3 -s sqcif "%%1d.jpg"

Answer 1

Use the select filter:

ffmpeg -i input.mp4 -vf "select='eq(t,0)+eq(t,5)+eq(t,10)'" -vsync vfr output_%03d.png

-vsync vfr will prevent it from outputting unwanted, duplicate frames.