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 don't 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 occurred.

       $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.

SEE ALSO

       <http://musicbrainz.org/doc/libdiscid>

AUTHOR

       Nicholas J. Humfrey <njh@aelius.com>

COPYRIGHT AND LICENSE

       The MIT License (MIT)

       Copyright (c) 2009-2019 Nicholas J Humfrey

       Permission is hereby granted, free of charge, to any person obtaining a copy of this
       software and associated documentation files (the "Software"), to deal in the Software
       without restriction, including without limitation the rights to use, copy, modify, merge,
       publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
       to whom the Software is furnished to do so, subject to the following conditions:

       The above copyright notice and this permission notice shall be included in all copies or
       substantial portions of the Software.

       THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
       INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
       PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
       FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
       OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
       DEALINGS IN THE SOFTWARE.