# play Mandelbrot without creating the file

ffplay -f lavfi -i mandelbrot



# visualise each bit of two seconds of Mandelbrot

ffmpeg -f lavfi -i mandelbrot -t 2 -pix_fmt yuv420p -f h264 - | xxd -b -c 1 | grep -o '[01]\{8\}' | echo $(tr -d '\n')



# MediaInfo

mediainfo --Details Dufay_ProRes.mkv

mediainfo --Info-Parameters



# show histogram of Dufay

ffmpeg -f image2 -i DUFAY_TIFF/Dufay_%06d.tif -c:v rawvideo -pix_fmt uyvy422 -f nut - | ffplay - -vf histogram=display_mode=overlay -x 640 -y 480



# show histogram of Mandelbrot by piping an eternal stream

ffmpeg -i mandelbrot.mov -pix_fmt uyvy422 -f nut - | ffplay - -vf histogram=display_mode=overlay -x 640 -y 480



# play a 1000 Hz test sound

ffplay -f lavfi -i "sine=frequency=1000"



# generate image and sound for test DCP

ffmpeg -f lavfi -i "smptehdbars=1920x1080" -filter:v "hue=H=.2*t" -c:v rawvideo -t 30 playing_with_the_hue.mkv

ffmpeg -f lavfi -i "anoisesrc=colour=brown" -filter:a "tremolo=f=0.1:d=0.9" -t 30 seashore.wav