What is the best way to get the CDDB info for an audio CD in Perl?

Question

What is the best way to get the cd-title and the cd-track-names from an audio CD? I tried this module, but it didn't work.

#!/usr/bin/env perl
use warnings;
use strict;
use CDDB_get qw( get_cddb );

my %config;
$config{CDDB_HOST} = "freedb.freedb.org";
$config{CDDB_PORT} = 8880;
$config{CDDB_MODE} = "cddb";
$config{CD_DEVICE} = "/dev/sr1";

# user interaction welcome?
$config{input} = 1;

my %cd = get_cddb( \%config ); # line 16

print "$_ : $cd{$_}\n" for keys %cd;

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

print "artist: $cd{artist}\n";
print "title: $cd{title}\n";
print "category: $cd{cat}\n";
print "cddbid: $cd{id}\n";
print "trackno: $cd{tno}\n";

my $n = 1;
for my $i ( @{$cd{track}} ) {
    print "track $n: $i\n";
    $n++;
}

# OUT:
# Odd number of elements in hash assignment at ./cddb_get.pl line 16.
# Use of uninitialized value in list assignment at ./cddb_get.pl line 16.
# Use of uninitialized value in concatenation (.) or string at ./cddb_get.pl line 18.
#  :
# no cddb entry found at ./cddb_get.pl line 21.

Answer 1

Try putting

BEGIN { $CDDB_get::debug = 1 }

before the use CDDB_get line in order to get debugging output to STDERR.

Answer 2

Are you sure the API URL to FreeDB is correct in the module?

Can you try HTTP instead of CDDBP?

From the FreeDB documentation:

Configure your CDDB1- or freedb-aware software to point to freedb.freedb.org (Random freedb server) as your CDDB/freedb-server.

All official freedb servers are running cddbp at port 8880 and http at port 80. The path for http-access is /~cddb/cddb.cgi.

Answer 3

I would consider looking information up on musicbrainz.org instead.

Using MusicBrainz::DiscID to find the discid of a cd and WebService::MusicBrainz to retrieve the data is quite easy:

#!/usr/bin/perl

use strict;
use warnings;

use MusicBrainz::DiscID;
use WebService::MusicBrainz;

my $discid=MusicBrainz::DiscID->new;
if ( !$discid->read ) {
    print STDERR "Error: " . $discid->error_msg . "\n";
    exit 1;
}
print "DiscID: " . $discid->id . "\n";

my $service=WebService::MusicBrainz->new_release;
my $response=$service->search({ DISCID=>$discid->id });
my $release=$response->release;

print "ARTIST: " . $release->artist->name . "\n";
print "ALBUM:  " . $release->title . "\n";