l="$(
printf '' \
| mplayer -input nodefault-bindings -nosound -vo null -identify -frames 0 "$file" 2>&- \
| sed -rn 's:ID_LENGTH=(.*)(\..*)$:\1:p;' \
)"
l="$(
printf '' \
| mplayer -input nodefault-bindings -nosound -vo null -identify -frames 0 "$file" 2>&- \
| sed -rn 's:ID_LENGTH=(.*)(\..*)$:\1:p;' \
)"