Video file screenshot script

gistfile1.txt

# single video file
./screenshotter.sh video.mp4 250

# directory of files
find . -type f -maxdepth 1 -printf '"%f"\n' -exec screenshots.sh {} 250 \;

screenshots.sh

!/bin/bash

duration=$(ffprobe -v quiet -print_format json -show_format -show_streams "$1" | jq -r .format.duration)
fps=$(echo "scale=5; $duration / $2" | bc)
filename=$(basename "$1")
#filename="${filenameonly%.*}"

#echo $1 $duration $fps $filename
mkdir -p "screenshots/$filename"
ffmpeg -v quiet -stats -i "$1" -vf fps=1/$fps "screenshots/$filename/%06d.png"