Output your ansi art to a png using your favorite tool like ansilove or an ansi art editor.

Convert PNG to 1080 width

ffmpeg -i input.png -vf "scale=1080:-1" output.png

Make instragram friendly MP4 from PNG (w/scrolling)

ffmpeg -loop 1 -i input.png -vf "fade=t=in:st=0:d=3,fade=t=out:st=15:d=3,scroll=vertical=0.001,s cale=-1:1920, crop=iw:1080:0:0,format=yuv420p" -t 20 output.mp4

Pause video at the beginning Create intro

ffmpeg -loop 1 -i judgedredd1080.png -vf "crop=iw:1920:0:0,format=yuv420p" -t 4 judgedredd-intro -1080x1920.mp4