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=head1 NAME |
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Convert::CD::Cue - import/export .bin/.cue files. |
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=head1 SYNOPSIS |
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use Convert::CD::Cue; |
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# to be done |
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|
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=head1 DESCRIPTION |
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Parse/Write .cue files. |
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=head2 Convert:CD::Cue METHODS |
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This class represents a .bin/.cue file combination. |
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=over 4 |
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=cut |
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package Convert::CD::Cue; |
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|
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$VERSION = 0.01; |
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use Carp; |
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use base Convert::CD::TOCFile; |
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=item new param => value... |
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Create a new Convert::CD::Cue object. |
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Parameters: |
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|
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path the base image filename |
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tocpath the (optional) path of the tocfile |
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=cut |
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|
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sub new { |
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my $class = shift; |
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my $self = bless { @_, }, $class; |
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exists $self->{tocpath} or $self->{tocpath} = $self->find_tocfile ("cue", "CUE", "Cue"); |
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$self; |
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} |
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|
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sub _read { |
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my ($self, $cd) = @_; |
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|
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defined $self->{tocpath} |
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or croak "no tocpath specified and/or no .cue found"; |
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open my $cue, "<", $self->{tocpath} |
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or croak "$self->{tocpath}: $!"; |
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my @tracks; # perliminary track data |
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my $file; |
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my $track; |
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# assumption #1: these thingies are line-based |
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while (<$cue>) { |
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s/[\015\012]+$//; |
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# assumption #2, leading whitespace don't matter much |
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# assumption #3, case? what case? |
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if (/\S*FILE \"?(.*?)\"? (\S+)$/i) { |
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my ($path, $type) = ($1, $2); |
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if (-e $path) { |
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$file = $path; |
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} else { |
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my $name = $path; $name =~ s/^.*[\/\\]//; |
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if (-e $name) { |
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$file = $name; |
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} elsif (-e lc $name) { |
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$file = lc $name; |
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} else { |
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$file = $self->{path}; |
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} |
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warn "\"$path\" not found, using \"$file\" instead\n"; |
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} |
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|
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} elsif (/\S*TRACK (\d+) (\S+)/i) { |
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my ($idx, $mode) = ($1, $2); |
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my $secsize = 2352; |
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$secsize = $1 if $mode =~ s/\/(\d+)$//; # MODE2/1234 => MODE2 |
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$secsize = 2448 if $mode eq "CDG"; |
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$track = $tracks[$idx - 1] = {}; |
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$track->{path} = $file; |
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$track->{mode} = $mode; |
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$track->{secsize} = $secsize; |
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|
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} elsif (/\S*INDEX (\d+) ([0-9:]+)/i) { |
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my ($idx, $time) = ($1, $self->parse_msf ($2)); |
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$track->{index}[$idx] = $time; |
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$track->{offset} = $time * $track->{secsize} if $idx == 1; |
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} elsif (/\S*PREGAP ([0-9:]+)/i) { |
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$track->{pregap} = $self->parse_msg ($1); |
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} elsif (/\S*POSTGAP ([0-9:]+)/i) { |
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$track->{postgap} = $self->parse_msg ($1); |
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} else { |
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warn "unknown .cue directive skipped: $_"; |
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} |
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} |
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# now go through the tracks array |
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my $prev = undef; |
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for (@tracks) { |
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next unless $_; |
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if ($prev && $prev->{offset} <= $_->{offset}) { |
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$prev->{size} = $_->{offset} - $prev->{offset}; |
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} |
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$prev = $_; |
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} |
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|
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for (@tracks) { |
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if (defined $_) { |
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$cd->append_track (%$_); |
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} else { |
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# synthesize empty track |
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$cd->append_track (size => 0, mode => "MODE1", secsize => 2048); |
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} |
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} |
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} |
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#sub _write { |
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# my ($self, $cd) = @_; |
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#} |
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1; |
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=back |
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=head1 AUTHOR |
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|
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Marc Lehmann <pcg@goof.com> |
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|
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=cut |
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