video for random colors via ffmpeg

video-creator.bash

mkdir -p frames

# Generate 120 solid-color frames (30 seconds @ 4 fps = 0.25s per frame)
for i in {1..120}; do
    COLOR=$(openssl rand -hex 3)
    FRAME_NUM=$(printf %03d $i)
    magick -size 640x480 xc:"#${COLOR}" \
        -gravity center \
        -fill white \
        -pointsize 72 \
        -annotate +0+0 "Frame ${FRAME_NUM}" \
        "frames/frame${FRAME_NUM}.png"
done

# Create video from frames
ffmpeg -framerate 4 -i frames/frame%03d.png -c:v libx264 -pix_fmt yuv420p color_test_video.mp4