+#!/bin/bash
+
+PROG_NAME=$(basename $0)
+
+VIDEO_OPTS="-c:v libx264 -preset veryslow -crf 15"
+
+print_usage()
+{
+ echo "${PROG_NAME} -- Conversion AVI à MP4 (x264)"
+ echo "Usage: ${PROG_NAME} [OPTIONS...] FICHIER"
+ echo
+ echo "Options:"
+ echo " -a Conversion trame audio AAC (défaut=copier)"
+ echo " -b Si option a sélectionnée, bitrate (défaut=192k)"
+}
+
+# Default values
+bitrate=192k
+aac=0
+
+while getopts "ab:" flag ;do
+ case ${flag} in
+ a)
+ aac=1
+ ;;
+ b)
+ bitrate=${OPTARG}
+ ;;
+ h)
+ print_usage
+ exit 0
+ ;;
+ ?)
+ echo "${PROG_NAME}: Option invalide: ${OPTARG}."
+ echo "Essayez \`${PROG_NAME} -h' pour plus d'informations."
+ exit 1
+ ;;
+ esac
+done
+shift `expr "${OPTIND}" - 1`
+
+if [ x"${aac}" = x1 ]; then
+ audio_opts="-c:a aac -b:a ${bitrate}"
+else
+ audio_opts="-c:a copy"
+fi
+
+# `$#' now represents the number of arguments after the options.
+# `$1' is the first argument, etc.
+if [ $# -gt 1 ]; then
+ echo "${PROG_NAME}: Too many arguments."
+ echo "Essayez \`${PROG_NAME} -h' pour plus d'informations."
+ exit 1
+fi
+
+if [ ${#} -ne 1 ]; then
+ echo "${PROG_NAME}: Nom de fichier manquant."
+ echo "Essayez \`${PROG_NAME} -h' pour plus d'informations."
+ exit 1
+fi
+
+src=${1}
+
+# Checking if input file exist.
+if [ ! -f $1 ]; then
+ echo "$0: File ${src} not found."
+ print_usage
+ exit 1
+fi
+
+dest=`echo "${src}" | sed s/\.avi$/.mp4/g`
+
+ffmpeg -i ${src} ${VIDEO_OPTS} ${audio_opts} ${dest}