[ale] Perl + CDDB

[Byron A Jeff]

On Thu, Feb 10, 2005 at 04:02:29PM -0500, Christopher Fowler wrote:
> 
> I'm starting to write some programs to automate converting my massive
> CD collection into MP3s.  I see there is a CDDB module but it does not 
> seem to read the info from the CD.  Anyone have this figured out?  I could use
> mp3c to create a script but I want more control.  

Chris,

I've done it. But I can't tell you what if any changes I made to the perl
CDDB_Get to make it work.

It's three relatively small scripts. Requires that cdparanoia, lame, and
the CDDB_Get perl module be installed. It will ID a CD, rip the wav files off
the disk one at a time and encode them.

the dumpcddb has been slightly modified by me. I think this is the first time 
I've ever relased it.

I'll just post them here:
----------------- mp3dump -------------------------------
#!/bin/sh
if [ "$1" ] ; then
   if [ $1 = - ] ; then
      maindir=/thrasher
   else
      maindir=$1
   fi
else
   maindir=/thrasher
fi

cd $maindir

mkcddir
newdir=`head -1 /tmp/.cdlisting`

echo Created directory $maindir/$newdir

cd $newdir

if [ "$2" ] ; then
   first=`echo $2 | cut -d- -f1`
   last=`echo $2 | cut -d- -f2`
   first=$[first+1]
   last=$[last-first+2]
else
   first=2
   last=`wc -l MANIFEST | cut -c1-7 | tr -d ' '`
fi

for i in `tail +$first MANIFEST | head -$last` ; do
   echo "   Reading $i"
   tracknum=`echo $i | cut -c1-2`
   time cdparanoia -B $tracknum
   echo "   Converting $i"
   mv track*.wav $i
   lame $i
   rm $i
done

eject
touch COMPLETED
--------------------------mkcddir------------------------- 
#!/bin/sh

dumpcddb | tr 'A-Z' 'a-z' | tr -d '()\054' |  tr -c 'a-z0-9.\n' '_'  > /tmp/.cdlisting
newdir=`head -1 /tmp/.cdlisting`
if [ -z "$newdir" ] ; then
   echo "No CDDB entry found for CD."
   echo -n "Enter <artist>.<title>:"
   read newdir
   tracks=$(grep total /tmp/cddb/numtracks | tr -d ';' | cut -d'=' -f2)
   echo $newdir > /tmp/.cdlisting
   track=1
   while [ $track -le $tracks ] ;do
      printf "%02d_track%02d\n" $track $track >> /tmp/.cdlisting
      track=$[track+1]
   done 
fi
mkdir $newdir
cd $newdir
cp /tmp/.cdlisting MANIFEST
echo $newdir
------------------------------- dumpcddb -------------------------
#!/usr/bin/perl -I.
#
#  CDDB - Read the CDDB entry for an audio CD in your drive
#
#  This module/script gets the CDDB info for an audio cd. You need
#  LINUX, a cdrom drive and an active internet connection in order
#  to do that.
#
#  (c) 2000 Armin Obersteiner <armin at xos.net>
#
#  LICENSE
#
#  This library is released under the same conditions as Perl, that
#  is, either of the following:
#
#  a) the GNU General Public License as published by the Free
#  Software Foundation; either version 1, or (at your option) any
#  later version.
#
#  b) the Artistic License.
#

use CDDB_get;
use Data::Dumper;

use strict vars;

use Getopt::Std;
my %option = ();
getopts("oghdt", \%option);

if($option{h}) {
  print "$0: gets CDDB info of a CD\n";
  print "  no argument - gets CDDB info of CD in your drive\n";
  print "  -o  offline mode - just stores CD info\n";
  print "  -d  output in xmcd format\n";
  print "  -t  output toc\n";
  print "  -g  get CCDB info for stored CDs\n";
  exit;
}

my %config;

my $diskid;
my $total;
my $toc;
my $savedir="/tmp/cddb";

# following variables just need to be declared if different from defaults

$config{CDDB_HOST}="freedb.freedb.org";	# set cddb host
$config{CDDB_PORT}=888;			# set cddb port
$config{CD_DEVICE}="/dev/cdrom";	# set cd device

# user interaction welcome?

$config{input}=0;   # 1: ask user if more than one possibility
                    # 0: no user interaction

if($option{o}) {
  my $ids=CDDB_get::get_discids($config{CD_DEVICE});

  unless(-e $savedir) {
    mkdir $savedir,0755 || die "cannot create $savedir";
  }

  open OUT,">$savedir/numtracks" || die "cannot open outfile";
  print OUT Data::Dumper->Dump($ids,["diskid","total","toc"]);  
  close OUT;

  exit;
}

if($option{g}) {
  print STDERR "retrieving stored cds ...\n";

  opendir(DIR, $savedir) || die "cannot opendir $savedir";
  while (defined(my $file = readdir(DIR))) {
    next if($file =~ /^\./);
    print "\n";

    my $in=`/bin/cat $savedir/$file`;
    my $exit  = $? >> 8; 

    if($exit>0) {
      die "error reading file";
    }
    unlink "$savedir/$file";

    eval $in; 

    my %cd=get_cddb(\%config,[$diskid,$total,$toc]);

    unless(defined $cd{title}) {
      print "no cddb entry found: $savedir/$file\n";
    }

    if($option{d}) {
      print_cover(\%cd);
    } else {
      print_cd(\%cd);
    }
  }
  closedir(DIR);
  exit;
}

# get it on

my %cd=CDDB_get::get_cddb(\%config);

unless(defined $cd{title}) {
  die "no cddb entry found";
}

# do somthing with the results

if($option{d}) {
  print_xmcd(\%cd);
} else {
  print_cd(\%cd);
}


exit;



# subroutines

sub print_cd {
  my $cd=shift;

  print "$cd->{artist}.";
  print "$cd->{title}\n";

  my $n=1;
  foreach my $i ( @{$cd->{track}} ) {
    if($option{t}) {
      my $out=sprintf "track %2d: %8d - %8d: $i\n",$n,$cd->{frames}[$n-1],$cd->{frames}[$n]-1;
      print "$out"; 
    } else {
      printf "%02d_%s\n",$n,$i;
    }
    $n++;
  }  
}

sub print_xmcd {
  my $cd=shift;

  for(@{$cd->{raw}}) {
    print "$_";
  }
}   
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