cd ~/Desktop



# generate exercise files

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

ffplay mandelbrot.avi

ffmpeg -lavfi sine=frequency=440 -c:a pcm_s16le -ar 48k -ac 2 -t 10 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

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

ffplay mandelbrot.mov

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

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

diff -s mandelbrot_avi_framemd5.txt mandelbrot_mov_framemd5.txt



# find help

ffmpeg -h

ffmpeg -codecs

ffmpeg -decoders

ffmpeg -encoders

ffmpeg -filters

ffmpeg -filters | grep 'negate'

ffmpeg -pix_fmts

ffmpeg -pix_fmts | grep 'bayer'

ffmpeg -encoders | grep 'av1'

ffmpeg -decoders | grep 'av1'

ffmpeg -h decoder=libdav1d

ffmpeg -decoders | grep '264'

ffmpeg -encoders | grep '264'

ffmpeg -h encoder=libx264

x264 -h

x264 --fullhelp



# Dufaycolor

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

ffmpeg -f image2 -framerate 24 -i DUFAY_TIFF/Dufay_%06d.tif -filter:v "scale=1440:1080:flags=lanczos, pad=1920:1080:240:0" -c:v prores_ks -profile:v 3 Dufay_ProRes.mkv

ffmpeg -i Dufay_ProRes.mkv -pix_fmt yuv420p -c:v libx264 -preset veryslow -crf 35 Dufay_ProRes_H264.mp4

ffmpeg -i Dufay_ProRes.mkv -pix_fmt yuv420p -c:v libx264 -preset veryslow -crf 18 -movflags +faststart Dufay_ProRes_H264_web.mp4