Break video into images for processing

Question

I have recently found friday, a image processing library for haskell and it seems pretty nice so far, but I would like to be able to load videos and break them up into images. Is there such a library available for haskell?

Answer 1

I do not know whether such a library exists, but I suspect not. Video codecs are pretty complicated. If something for haskell exists, it would most likely be an ffmpeg wrapper. Anyway, I would use the ffmpeg command line tool directly if you only need to extract the frames from some videos. Or use a system call to do it dynamically.

The ffmpeg command is pretty simple for this task:

ffmpeg -i "input.mov" -an -f image2 "output_%05d.jpg"

https://en.wikibooks.org/wiki/FFMPEG_An_Intermediate_Guide/image_sequence