mencoder을 이용한 폴더내의 avi파일 일괄 변환

#!/bin/sh
 
MENCODER="/usr/local/bin/mencoder"
PASSLOG="pass.log"
 
# menc2mpeg4 gets at least one filename
if [ $# -gt 0 ]
then
        echo "number of input files : $#";
else
        echo "Usage : menc2mpeg4 filename1 [filename2] .....";
        exit 0
fi
 
for filename in "$@";
do
        targetname=${filename%.*};
        targetname="$targetname.msmpeg4.avi";
        echo "Convert $filename into $targetname";
        /bin/nice -n 0 "$MENCODER" "$filename" -oac mp3lame -lameopts preset=standard -ofps 30000/1001 -ovc lavc -lavcopts vcodec=msmpeg4:mbd=2:vqscale=4:trell:turbo -o "$targetname" 2> /dev/null
        err=$?;
        if [ $err -eq 0 ]
        then
                echo "Encoding Finished Successfully!";
        else
                echo "Encoding Failed : $filename";
        fi
done