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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" MusicBrainz::DiscID \- Perl interface for the MusicBrainz libdiscid library .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& use MusicBrainz::DiscID; \& \& my $discid = MusicBrainz::DiscID\->new(); \& if ( $disc\->read() == 0 ) { \& print STDERR "Error: " . $discid\->error_msg() . "\en"; \& exit(1); \& } \& print "DiscID: " . $discid\->id() . "\en"; .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" MusicBrainz::DiscID is a class to calculate a MusicBrainz DiscID from an audio \s-1CD\s0 in the drive. The coding style is slightly different to the C interface to libdiscid, because it makes use of perl's Object Oriented functionality. .IP "\fIMusicBrainz::DiscID::default_device()\fR" 4 .IX Item "MusicBrainz::DiscID::default_device()" Returns a device string for the default device for this platform. .IP "MusicBrainz::DiscID::new( [$device] )" 4 .IX Item "MusicBrainz::DiscID::new( [$device] )" Construct a new DiscID object. .Sp As an optional argument the name of the device to read the \s-1ID\s0 from may be given. If you don't specify a device here you can later read the \s-1ID\s0 with the read method. .ie n .IP "$discid\->\fIerror_msg()\fR" 4 .el .IP "\f(CW$discid\fR\->\fIerror_msg()\fR" 4 .IX Item "$discid->error_msg()" Return a human-readable error message of the last error that occured. .ie n .IP "$discid\->\fIfirst_track_num()\fR" 4 .el .IP "\f(CW$discid\fR\->\fIfirst_track_num()\fR" 4 .IX Item "$discid->first_track_num()" Return the number of the first track on this disc (usually 1). Returns undef if no \s-1ID\s0 was yet read. .ie n .IP "$discid\->\fIlast_track_num()\fR" 4 .el .IP "\f(CW$discid\fR\->\fIlast_track_num()\fR" 4 .IX Item "$discid->last_track_num()" Return the number of the last track on this disc. .ie n .IP "$discid\->\fIid()\fR" 4 .el .IP "\f(CW$discid\fR\->\fIid()\fR" 4 .IX Item "$discid->id()" Returns the DiscID as a string. Returns undef if no \s-1ID\s0 was yet read. .ie n .IP "$discid\->\fIlast_track_num()\fR" 4 .el .IP "\f(CW$discid\fR\->\fIlast_track_num()\fR" 4 .IX Item "$discid->last_track_num()" Return the number of the last track on this disc. Returns undef if no \s-1ID\s0 was yet read. .ie n .IP "$discid\->put( $first_track, $sectors, $offset1, $offset2, ... )" 4 .el .IP "\f(CW$discid\fR\->put( \f(CW$first_track\fR, \f(CW$sectors\fR, \f(CW$offset1\fR, \f(CW$offset2\fR, ... )" 4 .IX Item "$discid->put( $first_track, $sectors, $offset1, $offset2, ... )" This function may be used if the \s-1TOC\s0 has been read earlier and you want to calculate the disc \s-1ID\s0 afterwards, without accessing the disc drive. .ie n .IP "$discid\->read( [$device] )" 4 .el .IP "\f(CW$discid\fR\->read( [$device] )" 4 .IX Item "$discid->read( [$device] )" Read the disc \s-1ID\s0 from the given device. If no device is given the default device of the platform will be used. On error, this function returns false and sets the error message which you can access \f(CW$discid\fR\->\fIerror_msg()\fR. .ie n .IP "$discid\->\fIsectors()\fR" 4 .el .IP "\f(CW$discid\fR\->\fIsectors()\fR" 4 .IX Item "$discid->sectors()" Return the length of the disc in sectors. Returns undef if no \s-1ID\s0 was yet read. .ie n .IP "$discid\->\fIsubmission_url()\fR" 4 .el .IP "\f(CW$discid\fR\->\fIsubmission_url()\fR" 4 .IX Item "$discid->submission_url()" Returns a submission \s-1URL\s0 for the DiscID as a string. Returns undef if no \s-1ID\s0 was yet read. .ie n .IP "$discid\->track_length( $track_num )" 4 .el .IP "\f(CW$discid\fR\->track_length( \f(CW$track_num\fR )" 4 .IX Item "$discid->track_length( $track_num )" Return the length of a track in sectors. .ie n .IP "$discid\->track_offset( $track_num )" 4 .el .IP "\f(CW$discid\fR\->track_offset( \f(CW$track_num\fR )" 4 .IX Item "$discid->track_offset( $track_num )" Return the sector offset of a track. .ie n .IP "$discid\->\fIwebservice_url()\fR" 4 .el .IP "\f(CW$discid\fR\->\fIwebservice_url()\fR" 4 .IX Item "$discid->webservice_url()" Returns a Webservice \s-1URL\s0 for the DiscID as a string. Returns undef if no \s-1ID\s0 was yet read. .SH "SEE ALSO" .IX Header "SEE ALSO" .SH "AUTHOR" .IX Header "AUTHOR" Nicholas J. Humfrey .SH "COPYRIGHT AND LICENSE" .IX Header "COPYRIGHT AND LICENSE" Copyright (C) 2009 Nicholas J. Humfrey .PP This program is free software; you can redistribute it and/or modify it under the terms of the \s-1GNU\s0 General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. .PP This program is distributed in the hope that it will be useful, but \s-1WITHOUT ANY WARRANTY\s0; without even the implied warranty of \&\s-1MERCHANTABILITY\s0 or \s-1FITNESS FOR A PARTICULAR PURPOSE. \s0 See the \&\s-1GNU\s0 General Public License for more details.