;;
"-ps")
shift
- pal_size=$1
+ if [ "$1" != "0,0" ]; then
+ pal_size=$1
+ else
+ echo "warning: ignored pal_size: $1"
+ fi
;;
"-pp")
shift
;;
"-ns")
shift
- ntsc_size=$1
+ if [ "$1" != "0,0" ]; then
+ ntsc_size=$1
+ else
+ echo "warning: ignored ntsc_size: $1"
+ fi
;;
"-np")
shift