this app can convert any video lecture to slide this app currently just run on linux machine.
apt install ffmpeg
apt install img2pdf
use git clone or any other ways to download source code going to the source directory and run
go run . -s 1 -i ./inFile/1280.mp4
so you can see any frame of video on "out.pdf"
if you run binary file, remember you need "pdf.sh" script beside the binary file and ffmpeg, img2pdf should be install.