[ffmpeg]동영상 변환 스크립트

#!/bin/bash
######################################################################
#
# 동영상 변환 스크립트
#
# 사용방법: mkv2mp4 <동영상 파일명>
#
######################################################################

function usage() {
  echo "$0 <mkv filename="">"
}

if [ $# -eq 0 ]
then
  usage
  exit 1
fi

if [ ! -f $1 ]
then
  echo "file not found !"
  usage
  exit 2
fi

nohup ffmpeg -y -i "$1" -threads 0 -r 30 -sn -vcodec libx264 -preset medium -crf 23 -tune film -sws_flags lanczos -vf "scale=-1:720" -acodec libmp3lame -ac 2 -ab 192k -f mp4 "$(basename -s .mkv $1).mp4" &
rm -f nohup.out