Free WMA to OGG converter script

#!/bin/bash
# Copyright (C) Eskild Hustvedt 2005
# $Id: wma2ogg 2386 2008-03-17 13:09:08Z zerodogg $
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see .

# Ugly hack to convert wma to ogg using mplayer and oggenc
# NO WARRANTY WHATSOEVER

# Temporary mplayer info file
TIEFILE="/tmp/wma2ogg$$_`whoami`"
# Temporary audio file
AUDIOFILE="/tmp/wma2ogg$$.`whoami`-SOUND_$RANDOM$RANDOM"
echo "Decoding to $AUDIOFILE"
# Decode the wma using mplayer
mplayer -vc null -vo null -ao pcm:file="$AUDIOFILE" "$1" | tee $TIEFILE
mplayerret="$?"
# Read and remove the info file
MYFILE="`cat $TIEFILE`"
rm -f $TIEFILE
# Verify return value
if [ "$ret" != "0" ]; then
	echo "Decoding failed! mplayer exited with return value $ret"
	rm -f $AUDIOFILE
	exit $ret
fi
# Parse the info file, getting the name (trackname) and author (artist)
#  so that the new file will have at least some tags.
# TODO: Album? Or doesn't this sucky format have support for that tag?
SONGNAME="`echo "$MYFILE"|grep " name: "|sed -e s,' name: ','',g`"
ARTISTNAME="`echo "$MYFILE"|grep " author: "|sed -e s,' author: ','',g`"
ENC="`echo "$1"|sed -e s,'wma$','ogg',g`"
echo "Encoding to $ENC"
oggenc -a "$ARTISTNAME" -t "$SONGNAME" $AUDIOFILE -o "$ENC"
oggret="$?"
rm -f /tmp/wma2ogg$$
# Verify return value
if [ "$oggret" != "0" ]; then
	echo "Encoding failed! oggenc exited with return value $ret"
	rm -f $ENC
	exit $ret
fi
# TODO Real commandline options
if [ "$2" == "-d" ]; then
	rm -fv "$1"
fi