#! /bin/sh
# Script for processing all audio tracks with an ogg or mp3 decoder
# based on a news article by Tom Kludy
# This variant uses named pipes in order to save space.
# usage: cdda2ogg <name prefix for all ogg/mp3 files>

# specify the sampling program and its options
# do not specify the track option here!
CDDA2WAV=${CDDA2WAV:-icedax}
CDDA2WAV_OPTS=${CDDA2WAV_OPTS:-'-H -P0 -q'}

# for normal use, comment out the next line
#DEBUG='-d1'

# the post processor is fed through a pipe to avoid space waste
# specify the post processing program and its options
case $0 in
   *ogg|*OGG|*Ogg)
   # ensure the right suffix for suffixes later
   suffix=ogg
   missmsg="Encoder not found. Install one first! (eg. vorbis-tools)"
   MP_CODER=${MP_CODER:-oggenc}
   outopt="-o"
   ;;
   *mp3|*MP3|*mpeg3|*MPEG3|*Mp3)
   suffix=mp3
   missmsg="Encoder not found. Install one first! (eg. lame)"
   MP_CODER=${MP_CODER:-lame}
   outopt=""
   ;;
   *)
   echo Unknown target file type: $suffix. Valid names for this application are: cdda2mp3, cdda2ogg.
   exit 1
   ;;
esac

MP_OPTIONS=${MP_OPTIONS:-''}

MP_CODER=$(which $MP_CODER 2>/dev/null)
if [ ! -x "$MP_CODER" ] ; then
   echo $missmsg
   exit 1
fi

CDDA_DEVICE=${CDDA_DEVICE:-/dev/cdrw}
export CDDA_DEVICE

FILEPREFIX=${1:-audiotrack}

if [ -e /etc/default/cdda2$suffix ]; then
	. /etc/default/cdda2$suffix
fi

if [ -z "$LIST" ] ; then
   echo Looking for available tracks...
   # could use list_audio_tracks instead but that would need an extra filter as
   # well, and this way we do not depend on that symlink
   LIST="$( $CDDA2WAV -J -vtoc -H 2>&1 | sed -e 's/^[^\ ].*//; s/\.([^)]*)/ /g;s/,//g;')"
   if [ -z "$LIST" ] ; then
      echo "ERROR: No valid audio tracks detected"
      exit 1
   fi
fi

echo Fetching `echo $LIST | wc -w` tracks from $CDDA_DEVICE, encoding with $MP_CODER.
echo Cancel with Ctrl-C, watch out for error messages.

for TRACK in $LIST ; do
   NAME="`printf "%02d" $TRACK`-$FILEPREFIX.$suffix"
   echo
   echo "############ Starting with Track Nr. $TRACK -> $NAME ############"
  $CDDA2WAV $CDDA2WAV_OPTS -t$TRACK $DEBUG - | \
  $MP_CODER $MP_OPTIONS - $outopt "$NAME"

  # check result code
  RES=$?
  if [ $RES != 0 ] ; then
    echo File $NAME failed \(result $RES\). Aborted. >&2
    break
  fi
done