Paul posted:

D:\FFMPEG\bin\ffmpeg -i L:\some.MOV -f image2 -q:v 1 -c:v mjpeg a%05d.jpg

1 ffmpeg -i file.mp4 frames%03d.jpeg
(one jpeg per frame)

2 ffmpeg -i file.mp4 -r 1 frames%03d.jpeg
(one jpeg per second)

1 Shotcut-File-Export Frame-name-#####.jpg
(the current frame to one jpeg)

2 Shotcut-View-Export-Presets-stills-JPEG-From Source-Export File
(every frame to C:\Users\yourlogin\Videos\name-#####.jpg)