velocity-obstacle basic
ffmpeg -t 5 -pattern_type glob -i '*.png' -vf "scale=1280:-1:flags=lanczos,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse" -loop 0 output.gif
ffmpeg -i 2-5-slowpoke.gif -movflags faststart -pix_fmt yuv420p -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" out.mp4
