#!/usr/bin/perl
-# Copyright (c) 2012 Steve McIntyre <93sam@debian.org>
+# Copyright (c) 2012-2016 Steve McIntyre <93sam@debian.org>
# This code is hereby licensed for public consumption under either the
# GNU GPL v2 or greater, or Larry Wall's Artistic license - your choice.
#
# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
# abcde-musicbrainz-tool
-#
+#
# Helper script for abcde to work with the MusicBrainz WS API (v2)
use strict;
-use encoding "utf8";
+use utf8;
use POSIX qw(ceil);
use Digest::SHA;
use MusicBrainz::DiscID;
use WebService::MusicBrainz::Response::Track;
use WebService::MusicBrainz::Response::TrackList;
use Getopt::Long;
+use Pod::Usage;
-my $FRAMES_PER_SEC = 75;
+my $FRAMES_PER_S = 75;
-my ($device, $command, $discid, @discinfo, $workdir);
+my ($device, $command, $discid, @discinfo, $workdir, $help, $man);
Getopt::Long::Configure ('no_ignore_case');
Getopt::Long::Configure ('no_auto_abbrev');
GetOptions ("device=s" => \$device,
"command=s" => \$command,
"discid=s" => \$discid,
"discinfo=i{5,}" => \@discinfo,
- "workdir=s" => \$workdir);
+ "workdir=s" => \$workdir,
+ "help|h" => \$help,
+ "man" => \$man) or pod2usage(-verbose => 0, -exitcode => 2);
+if (@ARGV) {
+ print STDERR "Extraneous arguments given.\n";
+ pod2usage(-verbose => 0, -exitcode => 2);
+}
+pod2usage(-verbose => 1, -exitcode => 0) if $help;
+pod2usage(-verbose => 2, -exitcode => 0) if $man;
+# defaults
if (!defined($device)) {
$device = "/dev/cdrom";
}
$workdir = "/tmp";
}
+sub calc_sha1($) {
+ my $filename = shift;
+ my $s = Digest::SHA->new(1);
+ $s->addfile($filename);
+ return $s->hexdigest;
+}
if ($command =~ m/^id/) {
my $disc = new MusicBrainz::DiscID($device);
printf("%s ", $disc->id());
printf("%d ", $disc->last_track_num() + 1 - $disc->first_track_num());
-
+
for ( my $i = $disc->first_track_num;
$i <= $disc->last_track_num; $i++ ) {
printf("%d ", $disc->track_offset($i));
}
- printf("%d\n", $disc->sectors() / $FRAMES_PER_SEC);
+ printf("%d\n", $disc->sectors() / $FRAMES_PER_S);
undef $disc;
-
} elsif ($command =~ m/data/) {
+ if (!defined $discid or !$discid) {
+ print STDERR "Discid undefined.\n";
+ exit(1);
+ }
my $ws = WebService::MusicBrainz::Release->new();
my $response = $ws->search({ DISCID => $discid });
my @releases = $response->release_list();
my $releasenum = 0;
+ my @sums;
foreach my $release (@releases) {
my $a_artist = $release->artist()->name();
my $va = 0;
+ my $rel_year = "";
if ($a_artist =~ /Various Artists/) {
$va = 1;
}
+ if ($release->release_event_list()->count() > 0) {
+ my @events = @{$release->release_event_list()->events()};
+ $rel_year = substr($events[0]->date(),0,4);
+ }
+
$releasenum++;
open (OUT, "> $workdir/cddbread.$releasenum");
binmode OUT, ":utf8";
my $total_len = 2000;
my @tracks = @{$release->track_list()->tracks()};
for (my $i = 0; $i < scalar(@tracks); $i++) {
- printf OUT "# %d\n", ceil($total_len * $FRAMES_PER_SEC / 1000.0);
+ printf OUT "# %d\n", ceil($total_len * $FRAMES_PER_S / 1000.0);
$total_len += $tracks[$i]->duration();
}
print OUT "#\n";
print OUT "#CATEGORY=none\n";
print OUT "DISCID=" . $discid . "\n";
print OUT "DTITLE=" . $a_artist. " / " . $release->title() . "\n";
- print OUT "DYEAR=\n";
- print OUT "DGENRE=\n";
-
+ print OUT "DYEAR=" . $rel_year . "\n";
+ print OUT "DGENRE=\n";
+
my @tracks = @{$release->track_list()->tracks()};
for (my $i = 0; $i < scalar(@tracks); $i++) {
my $track = $tracks[$i];
print OUT "PLAYORDER=\n";
print OUT ".\n";
close OUT;
+
+ # save release mbid
+ open (OUT, "> $workdir/mbid.$releasenum");
+ print OUT $release->id;
+ close OUT;
+
+ # save release asin
+ open (OUT, "> $workdir/asin.$releasenum");
+ print OUT $release->asin;
+ close OUT;
+
+ # Check to see that this entry is unique; generate a checksum
+ # and compare to any previous checksums
+ my $checksum = calc_sha1("$workdir/cddbread.$releasenum");
+ foreach my $sum (@sums) {
+ if ($checksum eq $sum) {
+ unlink("$workdir/cddbread.$releasenum");
+ $releasenum--;
+ last;
+ }
+ }
+ push (@sums, $checksum);
}
} elsif ($command =~ m/calcid/) {
# Calculate MusicBrainz ID from disc offsets; see
-# http://musicbrainz.org/doc/DiscIDCalculation
+# https://musicbrainz.org/doc/DiscIDCalculation
+
+ if ($#discinfo < 5) {
+ print STDERR "Insufficient or missing discinfo data.\n";
+ exit(1);
+ }
my ($first, $last, $leadin, $leadout, @offsets) = @discinfo;
my $s = Digest::SHA->new(1);
$id =~ tr#=#-#;
print $id;
+ if (-t STDOUT) { print "\n"; }
+} else {
+ print STDERR "Unknown commmand given.\n";
+ pod2usage(1);
+ exit(1);
}
+__END__
+
+=head1 NAME
+
+abcde-musicbrainz-tool - Musicbrainz query tool
+
+=head1 SYNOPSIS
+
+ abcde-musicbrainz-tool [options]
+
+ Options:
+ --command {id|data|calcid} mode of operation (default: id)
+ --device <DEV> read from CD-ROM device DEV (default: /dev/cdrom)
+ --discid <ID> Disc ID to query with --command data.
+ --discinfo <F> <L> <LI> <LO> <TRK1OFF> [<TRK2OFF> [...]]
+ Disc information for --command calcid.
+ --workdir <DIR> working directory (default: /tmp)
+ --help print option summary
+ --man full documentation
+
+=head1 OPTIONS
+
+=over 8
+
+=item B<--command> I<{id|data|calcid}>
+
+Select mode of operation:
+
+=over 8
+
+=item B<id>
+
+Read the disc-ID from the disc in the given device, and print it, the number of tracks, their start sectors, and the duration of the disc in seconds, to stdout. Format:
+
+ ID TRACKCOUNT OFFSET1 [OFFSET2 [...]] LENGTH_S
+
+=item B<data>
+
+Query MusicBrainz web service and store data into the workdir into cddbread.1, cddbread.2, ... files in the workdir.
+
+=item B<calcid>
+
+Calculate MusicBrainz ID from given B<--discinfo> data.
+
+=back
+
+=item B<--device>
+
+Specify CD-ROM drive's device name, to read ID from with B<--command id>.
+
+=item B<--discid>
+
+Supply disc ID for B<--command data>.
+
+=item B<--discinfo> I<<first track> <last track> <lead-in sector> <lead-out sector> <track1 offset> [<track2 offset> [...]]>
+
+Supply disc information for B<--command calcid>.
+
+=item B<--workdir> I<directory>
+
+The cddbread.* output files from B<--command data> go into this directory.
+
+=item B<--help>
+
+Print a brief help message and exit.
+
+=item B<--man>
+
+Display full manual and exit.
+=back