if [[ ! -e "${films_folder}$i.mp4" ]]
then
echo "${films_folder}$i.mp4 not exist"
echo "Converting "$i"."
/usr/local/bin/ffmpeg -i ${video_folder}$i.mkv -acodec aac -strict experimental -ab 128k -ac 2 -vcodec libx264 -b 1200k -s 1280x720 -r 30 -threads 0 ${films_folder}$i.mp4
echo "Convert "$i" to mp4 is done!"
else
shift
fi
# mkdir fs/
# sshfs -o IdentityFile=<pk_from_key_pair> root@<server_name>:/ fs/
# fusermount -u fs/