什么是获得在Perl音频CD的CDDB信息的最佳方式？

Question

什么是获得从音频CD的CD标题和CD-轨道名的最好方法？ 我想这个模块，但没有奏效。

#!/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

尝试把

BEGIN { $CDDB_get::debug = 1 }

之前，以便在use CDDB_get线获得调试输出到stderr。

Answer 2

您确定API网址的FreeDB是正确的模块？

您可以尝试HTTP，而不是CDDBP？

从所述的FreeDB文档：

  

配置您的CDDB1-或freedb的感知   软件指向freedb.freedb.org   （随机的FreeDB服务器）作为   CDDB /的FreeDB服务器。

     

所有正式的FreeDB服务器   在端口8880和HTTP运行cddbp在   端口80用于HTTP访问的路径   /~cddb/cddb.cgi。

Answer 3

我会考虑找资料了对 musicbrainz.org 代替。

使用的MusicBrainz ::盘标识符找到一个CD和WebService :: MusicBrainz上的盘标识符检索数据是很容易的：

#!/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";