Each of the following commands generates a .mjpeg file — a Motion JPEG video format — from an input .mp4 or .mov video, optimized for use in frame-by-frame playback with an SD card reader.
Make sure you have FFmpeg installed and accessible from your terminal or command prompt.
This command rescales the width to 172 pixels, automatically adjusting height to keep the original aspect ratio.
Use when you want a smaller width and you don’t want to distort the original video (Height can vary)
ffmpeg -y -i .\human_scan.mp4 -pix_fmt yuvj420p -q:v 7 -vf "fps=24,scale=172:-1:flags=lanczos" human_scan.mjpegUse when you want to target 172x320 (Stretching is acceptable)
ffmpeg -y -i .\human_scan.mp4 -pix_fmt yuvj420p -q:v 7 -vf "fps=24,scale=172:320:flags=lanczos" human_scan.mjpegUse when your source video is landscape (16:9)
ffmpeg -y -i .\enterprise.mp4 -pix_fmt yuvj420p -q:v 7 -vf "transpose=1,fps=24,scale=172:320:flags=lanczos" enterprise.mjpeg- -pix_fmt yuvj420p: Ensures JPEG-compatible pixel format
- -q:v 7: Controls image quality (lower is better; 1 = best, 31 = worst)
- -vf: Specifies the video filters:
- fps=24: Extracts 24 frames per second
- scale: Resizes the video
- transpose=1: Rotates the video 90° clockwise
- .mjpeg: Output format used when streaming or storing a series of JPEG frames as a video
