toMP3

tomp3.sh

#!/bin/bash
while getopts "" opt; do
  case $opt in
    \?)
      printf >&2 \
      "invalid option: -$OPTARG\n
      usage: toMp3 [-t type]\n"
      exit 1;;
    :)
      echo >&2 \
      "$0: option -$OPTARG requires an argument" >&2
      exit 1;;
  esac
done

while [ $# -gt 0 ]
do
  name=`echo "$1" | sed -e "s/.mp4$//g"`
  ffmpeg -i "$1" -vn -ar 44100 -ac 2 -ab 192k -f mp3 "$name.mp3"
  shift
done