+ if [ "$length" -a ! "${thumb}" -nt "${video}" ]; then
+ ffmpeg -nostdin -y -i "$video" -vf scale=320:-2,fps=10/${length} "${thumb%.jpg}_%02d.jpg"
+ montage "${thumb%.jpg}_"[01][0-9].jpg -tile 10x1 -geometry 320x180+0+0 -quality 85 "${thumb}"
+ rm -- "${thumb%.jpg}_"[01][0-9].jpg
+ fi 2>&-