# set the working space
#
# on Linux/Mac/Windows Terminal or WSL/Windows locally

cd Desktop

# on Windows on OneDrive Cloud

cd OneDrive



# generate exercise files

ffmpeg -f lavfi -i mandelbrot -t 10 -c:v rawvideo -pix_fmt uyvy422 mandelbrot.avi

ffplay mandelbrot.avi

ffmpeg -f lavfi -i "sine=frequency=440" -t 10 -c:a pcm_s16le -ar 48k -ac 2 la.wav

ffplay la.wav

ffmpeg -i mandelbrot.avi -i la.wav -c:v copy -c:a copy mandela.avi

ffplay mandela.avi

ffprobe mandela.avi

ffprobe -show_format -show_streams mandela.avi

ffprobe -show_format -show_streams -print_format flat mandela.avi

ffprobe -show_format -show_streams -print_format xml mandela.avi

ffprobe -show_format -show_streams -print_format json mandela.avi

ffprobe -show_format -show_streams -print_format json mandela.avi > mandela.txt

mediainfo mandela.avi



# find help

ffmpeg -h

ffmpeg -codecs

ffmpeg -decoders

ffmpeg -h decoder=aac

ffmpeg -encoders

ffmpeg -h encoder=libx264

ffmpeg -filters

ffmpeg -pix_fmts



# modify container

ffmpeg -i mandelbrot.avi -c copy mandelbrot.mov



# generate checksums at frame level

ffmpeg -i mandelbrot.avi -f framemd5 mandelbrot_avi_framemd5.txt

ffmpeg -i mandelbrot.mov -f framemd5 mandelbrot_mov_framemd5.txt



# compare checksum files
#
# on Linux/Mac/Windows Terminal or WSL

diff -s mandelbrot_avi_framemd5.txt mandelbrot_mov_framemd5.txt

# on Windows

fc mandelbrot_avi_framemd5.txt mandelbrot_mov_framemd5.txt



# play a single image sequence

ffplay -loop 0 DUFAY_TIFF/Dufay_%06d.tif



# from master to access

ffmpeg -f image2 -framerate 24 -i DUFAY_TIFF/Dufay_%06d.tif -filter:v "scale=1440:1080:flags=lanczos, pad=1920:1080:240:0" -pix_fmt yuv420p -c:v libx264 -preset veryslow -crf 30 -movflags +faststart+write_colr Dufay_master_H264.mp4