printf '' \
| mplayer -input nodefault-bindings -nosound -benchmark \
-noconfig all -really-quiet \
- -vf scale=320:-2,tile=10:1:10:0:0 \
+ -vf scale=320:-2,expand=:::::16/9,tile=10:1:10:0:0 \
-vo jpeg:quality=85:outdir="${tmp}"\
"mf://$tmp/_*.jpg" 2>&-