Bash to extract frames from a list of MP4 using FFMPEG

frame_extractor.bash

# choose one or the other

# 1
# oneliner: all JPGs in a single folder (don't use it when you are going to have thousands of images)
for i in $(ls 2022_07_*.MP4 | awk -F "." '{print $1}'); do ffmpeg -i $i.MP4 -qscale:v 1 -s 1920x1080 $(printf '%s' $i)_%8d.jpg; done

# 2
# each mp4 generates its own jpg folder
for i in $(ls 2022_07_13_*.MP4 | awk -F "." '{print $1}')
do
	mkdir $i
	ffmpeg -i $i.MP4 -qscale:v 1 -s 1920x1080 $i/$(printf '%s' $i)_%8d.jpg
done