I have this code:
ffmpeg -y -i "$file" -i watermark.png -filter_complex \ "[0:v][1:v]overlay=30:main_h-overlay_h:enable=between(t,30,35)" "out/$file"
And I want to add scale2ref here so that the size of the watermark is reduced to a maximum of 30% of the width of the video. I've tried many options, but none of them work.
