checkm3u.func

#!/usr/bin/env bash
#------------------------------------------------------------------------------
# burnCDDA is a shell script for burning Audio-CDs with
# cdrdao and cdrecord.
#
# (C) 2001 by Thorsten Muehlfelder <~thenktor~at~gmail~dot~com~>
#
# This program is free software; you can redistribute it and/or 
# modify it under the terms of the GNU General Public License (version 2)
# as published by the Free Software Foundation;
# 
# 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, write to the Free Software 
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 
#------------------------------------------------------------------------------

# errormessage of checkm3u
function checkerror()
{
CORRUPTED=$CORRUPTED+1
echo -e "\nThis File is${RED} corrupted${NOCOLOR} and can cause bad sound quality!"
echo -e "${BLUE}Press any key${NOCOLOR}"
read -n1
echo ""
continue
}


# check m3u playlist function
function checkm3u()
{
N=0
LN=1
CORRUPTED=0
NOTSUPPORTED=0
NOTREADABLE=0
while [ $LN -le $MAXLN ]; do
	LINE=`$HEAD -$LN "$PLAYLIST" | $TAIL -1 | $SED s/$'\r'//`
	# check if first character of the line is "#" and if yes skip the line
	EXTENDED=`echo "$LINE" | $HEAD -c 1`
	if [ "$EXTENDED" = "#" ]; then
		LN=$LN+1
		continue
	fi
	# correct some errors caused by drag and drop from the file manager
	FILEMANAGER=`echo "$LINE" | $HEAD -c 8`
	if [ "$FILEMANAGER" = "file:///" ]; then
		# use # instead of / as separator and substitude file:/// with /
		# substitude %20 with ' '
		# WARNING: there are many errors with special characters left
		# don't know how to fix it in a simple way
		LINE=`echo "$LINE" | $SED s#^file:///#/# | $SED s/%20/' '/g`
	fi
	echo "File: $LINE"
	# cut the part after the "." and set it as TYP
	TYP=`echo "$LINE" | $GAWK 'BEGIN { FS = "." } {if (NF > 1) print $NF}' | $TR [:upper:] [:lower:]`
	N=$N+1
	LN=$LN+1
	if [ -r "$LINE" ]; then
		if [ "$TYP" = "mp3" ]; then
			echo "mp3_check..."
			$MP3_CHECK "$LINE" 2> /dev/null 1> /dev/null || checkerror
			echo -e "${GREEN} OK${NOCOLOR}"
		elif [ "$TYP" = "ogg" ]; then
			echo "ogginfo..."
			$OGGINFO "$LINE" | $GREP "Corrupted ogg" && checkerror
			echo -e "${GREEN} OK${NOCOLOR}"
		elif [ "$TYP" = "mpc" ]; then
			echo "Musepack file. No check possible!"
		elif [ "$TYP" = "flac" ]; then
			echo "flac --test..."
			$FLACCHK --totally-silent --test "$LINE" || checkerror
			echo -e "${GREEN} OK${NOCOLOR}"
		elif [ "$TYP" = "wav" ]; then
			echo "WAV file. No check possible!"
		elif [ "$TYP" = "" ]; then
			echo "File format could not be detected. No check possible!"
		else
			echo "$TYP file. No check possible!"
		fi
	else
		echo "$LINE does not exist or is not readable."
		echo -e "${YELLOW}Failed${NOCOLOR}"
		NOTREADABLE=$NOTREADABLE+1
	fi
	echo -e "\n"
done
echo -e "\nChecked $MAXN files in '$PLAYLIST':"
echo -e "mp3_check/ogginfo found${RED} $CORRUPTED ${NOCOLOR}corrupted files!"
echo -e "${YELLOW}$NOTREADABLE ${NOCOLOR}files did not exist or were not readable."
}