MusicBrainz::DiscID(3pm)
NAME
MusicBrainz::DiscID - Perl interface for the MusicBrainz libdiscid
library
SYNOPSIS
use MusicBrainz::DiscID;
my $discid = MusicBrainz::DiscID->new();
if ( $disc->read() == 0 ) {
print STDERR "Error: " . $discid->error_msg() . "\n";
exit(1);
}
print "DiscID: " . $discid->id() . "\n";
DESCRIPTION
MusicBrainz::DiscID is a class to calculate a MusicBrainz DiscID from
an audio CD in the drive. The coding style is slightly different to the
C interface to libdiscid, because it makes use of perl's Object
Oriented functionality.
- MusicBrainz::DiscID::default_device()
- Returns a device string for the default device for this platform.
- MusicBrainz::DiscID::new( [$device] )
- Construct a new DiscID object.
- As an optional argument the name of the device to read the ID from may be given. If you donOt specify a device here you can later read the ID with the read method.
- $discid->error_msg()
- Return a human-readable error message of the last error that
occured. - $discid->first_track_num()
- Return the number of the first track on this disc (usually 1).
Returns undef if no ID was yet read. - $discid->last_track_num()
- Return the number of the last track on this disc.
- $discid->id()
- Returns the DiscID as a string. Returns undef if no ID was yet
read. - $discid->last_track_num()
- Return the number of the last track on this disc. Returns undef if no ID was yet read.
- $discid->put( $first_track, $sectors, $offset1, $offset2, ... )
- This function may be used if the TOC has been read earlier and you
want to calculate the disc ID afterwards, without accessing the
disc drive. - $discid->read( [$device] )
- Read the disc ID from the given device. If no device is given the
default device of the platform will be used. On error, this
function returns false and sets the error message which you can
access $discid->error_msg(). - $discid->sectors()
- Return the length of the disc in sectors. Returns undef if no ID
was yet read. - $discid->submission_url()
- Returns a submission URL for the DiscID as a string. Returns undef if no ID was yet read.
- $discid->track_length( $track_num )
- Return the length of a track in sectors.
- $discid->track_offset( $track_num )
- Return the sector offset of a track.
- $discid->webservice_url()
- Returns a Webservice URL for the DiscID as a string. Returns undef if no ID was yet read.
SEE ALSO
<http://musicbrainz.org/doc/libdiscid>
AUTHOR
Nicholas J. Humfrey <njh@aelius.com>
COPYRIGHT AND LICENSE
Copyright (C) 2009 Nicholas J. Humfrey
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
- This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.