<pre>
ffmpeg -re -i /tmp/frieren_6281484.jpg -f mpegts -blocksize 1024 tcp://leddisp.s0:5001
+ffmpeg -i {video/image} -vf "scale=384:256:force_original_aspect_ratio=decrease:flags=lanczos,pad=384:256:-1:-1:color=black" -f mpegts tcp://leddisp.s0:5001
+
ffmpeg -re -i {video/image} -r 10 -framerate 10 -vf "scale=384:256" -f rawvideo -pix_fmt +rgba tcp://localhost:5000
ffmpeg -re -i {video/image} -r 10 -framerate 10 -vf "scale=384:256:force_original_aspect_ratio=decrease:flags=lanczos,pad=384:256:-1:-1:color=black" -f rawvideo -pix_fmt +rgba tcp://localhost:5000