Apply a retro VHS effect
useful tips
// scenario
Add a nostalgic 80s VHS look with washed-out colors and analog noise.
// shell
$ ffmpeg -i input.mp4 -vf "curves=vintage,noise=alls=40:allf=t,hue=s=0.5,eq=contrast=1.3:brightness=-0.05:saturation=0.7" output.mp4