#!/bin/bash
#
# $Id: cdda2mp3 356 2011-09-24 23:25:47Z svnuser $
#
# $Log: cdda2mp3,v $
# Revision 1.4  2000/12/20 07:11:08  merlin
# Lots of updates
#
# Revision 1.3  1998/05/24 02:31:43  merlin
# Modified not to use fifos anymore
#
# Revision 1.2  1998/05/24 02:24:13  merlin
# Version that actually works on this system
#
# Revision 1.1  1998/05/24 02:21:49  merlin
# Original version from the distribution
#
#
# Demo script for processing all audio tracks with a mp3 decoder
# based on a news article by Tom Kludy
# This variant uses named pipes in order to save space.
# There is another variant of this script, which uses temporary
# wav files (see cdda2mp3.new).
#
# usage: cdda2mp3 <name prefix for all mp3 files>
#

USAGE="$0 [-t tty for cdparanoia] [-d 1st track to dump] 
	    [-e 1st track to encode] [-o offset between dump and encode]
	    [-dp (disable paranoia)] [-f file prefix]"

TTY=/dev/null
DUMPTRACK=1
ENCTRACK=1
OFFSET=1
DP=""
FILEPREFIX="audiotrack"

#NUMBEROFTRACKS=`cdda2wav -N -d0.01 -v3 2>&1 | grep " 1-" | sed -e "s/ 1- //" -e "s/ .*//"`
NUMBEROFTRACKS=`cdparanoia -Q 2>&1 | tail -2 | head -1 | sed -e "s/\. .*//" -e "s/ *//"`
echo "CD has $NUMBEROFTRACKS tracks"

while [ $# -gt 0 ]
do
    case $1 in
	    -t) if [ $# -eq 1 ]; then
		    echo $USAGE>&2
		    exit 1
		else
		    TTY=$2
		    shift
		fi
		;;

	    -d) if [ $# -eq 1 ]; then
		    echo $USAGE>&2
		    exit 1
		else
		    DUMPTRACK=$2
		    shift
		fi
		;;

	    -e) if [ $# -eq 1 ]; then
		    echo $USAGE>&2
		    exit 1
		else
		    ENCTRACK=$2
		    shift
		fi
		;;

	    -o) if [ $# -eq 1 ]; then
		    echo $USAGE>&2
		    exit 1
		else
		    OFFSET=$2
		    shift
		fi
		;;

	    -f) if [ $# -eq 1 ]; then
		    echo $USAGE>&2
		    exit 1
		else
		    FILEPREFIX=$2
		    shift
		fi
		;;

	    -dp) DP="-Z"
		 shift
		;;

	    *)  if [ $# -eq 1 ]; then
		    echo $USAGE>&2
		    exit 1
		else
		    echo $USAGE>&2
		    exit 1
		fi
		;;
    esac
    shift
done


# feed track numbers and start sectors into loop
(
    while [ $DUMPTRACK -le $NUMBEROFTRACKS ]
    do
	OLDDUMPTRACK=`expr $DUMPTRACK - $OFFSET`

	echo "Dumping track $DUMPTRACK at `date '+%k:%M:%S'`" > $TTY

	cdparanoia $DP $DUMPTRACK $FILEPREFIX$DUMPTRACK.wav >$TTY 2>&1
	
	echo "Done dumping track $DUMPTRACK at `date '+%k:%M:%S'`" >$TTY

	# Wait for the track to be encoded 
	while [ $OLDDUMPTRACK -gt 0 -a -f $FILEPREFIX$OLDDUMPTRACK.wav ]
	do
	    sleep 1
	done

	DUMPTRACK=`expr $DUMPTRACK + 1`
    done 

    # Encoding is waiting for the next file before starting, so we create it
    # temporarly 
    touch "$FILEPREFIX$DUMPTRACK.wav"
    sleep 10
    rm "$FILEPREFIX$DUMPTRACK.wav"
)&

while [ $ENCTRACK -le $NUMBEROFTRACKS ]
do
    NEWENCTRACK=`expr $ENCTRACK + 1`

    # Wait for the track to be dumped
    while [ ! -f "$FILEPREFIX$NEWENCTRACK.wav" ]
    do
	sleep 1
    done

    echo "Encoding track $ENCTRACK at `date '+%k:%M:%S'`"

    l3enc "$FILEPREFIX$ENCTRACK.wav" "$FILEPREFIX$ENCTRACK.mp3"

    # check result code
    RES=$?
    if [ $RES = 0 ] ; then
	echo
	echo "Done encoding track $ENCTRACK at `date '+%k:%M:%S'`"
        rm "$FILEPREFIX$ENCTRACK.wav"
    else
	echo
	echo "File $FILEPREFIX$ENCTRACK.mp3 failed  at `date '+%k:%M:%S'` (result $RES). Aborted." >&2
	exit 1
    fi

    ENCTRACK=$NEWENCTRACK
done

# cda -dev /dev/cdrom on &>/dev/null; cda toc >cda; cda -dev /dev/cdrom off 2>/dev/null