generate thumbnail from the middle of every scenes changes in a video using ffmpeg or other software

Question

Is there a way to generate thumbnails from scene changes using ffmpeg? Instead of picking the I-Frames but the middle of two I-Frames? This is assuming the middle of two major changes is usually the best time to take thumbnail shot from.

Answer 1

Yes, there is a way!

Execute this command:

ffmpeg -i yourvideo.mp4 -vf select="eq(pict_type\,I)" -vsync 0 -an thumb%03d.png

It is really simple. ffmpeg algorithms will do all the work and generate thumbnails from the middle of every scene change.

The items on bold:

yourvideo.mp4 (you need to change this to your video input)

thumb%03d.png (This is your output)