@Zergling_man @kamehamic chat gpt says this;


# Calculate video duration
duration=$(ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 input.mp4)

# Calculate timestamp for 50% duration
percentage=50
timestamp=$(echo "scale=9; $duration * ($percentage / 100)" | bc)

# Take screenshot
ffmpeg -i input.mp4 -ss "$timestamp" -frames:v 1 output_50percent.png