-=cut
-
-use strict;
-use warnings;
-
-use POSIX ':sys_wait_h';
-use Pod::Usage;
-use Getopt::Long qw(:config gnu_getopt no_ignore_case);
-
-my $flac_options;
-my $lame_options;
-my $quiet;
-my $verbose;
-
-sub run_or_die {
- my $command = shift;
- my $status;
-
- $verbose and print(STDERR "$command\n");
- $status = system($command);
-
- if (WIFEXITED($status)) {
- if (($status = WEXITSTATUS($status)) != 0) {
- die("$command exited with status $status");
- }
- } elsif (WIFSIGNALED($status)) {
- die("$command killed with signal ", WTERMSIG($status));
- } elsif (WIFSTOPPED($status)) {
- die("$command stopped with signal ", WSTOPSIG($status));
- } else {
- die("Major horkage on system($command): \$? = $? \$! = $!");
- }
-}
-
-sub tformat {
- return sprintf('%02d:%02d.%02d', @_);
-}
-
-sub get_decode_args {
- my $fn = shift;
- my @l;
-
- open(F, '-|', 'metaflac', '--export-cuesheet-to=-', $fn);
- while (<F>) {
- /INDEX 01 (\d\d):(\d\d):(\d\d)$/ or next;
- push(@l, [$1, $2, $3]);
- }
-
- my @args;
- for my $i (0..$#l) {
- my $arg = ["--skip=" . tformat(@{$l[$i]})];
- my $next = $l[$i+1];
- if (defined($next)) {
- if ($next->[2] == 0) {
- if ($next->[1] == 0) {
- push(@$arg, '--until=' . tformat($next->[0] - 1, 59, 74));
- } else {
- push(@$arg, '--until=' . tformat($next->[0], $next->[1] - 1,
- 74));
- }
- } else {
- push(@$arg, '--until=' . tformat($next->[0], $next->[1],
- $next->[2] - 1));
- }
- }
- push(@args, $arg);
- }
-
- # If no cue sheet, stick a dummy in here.
- if (@args == 0) {
- @args = ([]);
- }
-
- return @args;
-}
-
-# Return the ARTIST, ALBUM, and DATE tags followed by the TITLE tags
-# in the file FN.
-sub get_tags {
- my $fn = shift;
- my $artists = shift;
- my $titles = shift;
- my $tag;
- my $value;
- my $artist;
- my $album;
- my $date;
- my $discnum;
- my $track;
-
- open(TAGS, '-|', 'metaflac', '--export-vc-to=-', $fn)
- or die("open(metaflac --export-vc-to=- $fn): $!");
- while (<TAGS>) {
- chomp;
-
- ($tag, $value) = split(/=/, $_, 2);
-
- if (/^ARTIST=/i) {
- $artist = $value;
- } elsif (/^ALBUM=/i) {
- $album = $value;
- } elsif (/^DATE=/i) {
- $date = $value;
- } elsif (/^DISCNUMBER=/i) {
- $discnum = int($value);
- } elsif (/^ARTIST\[/i) {
- push(@$artists, $value);
- } elsif (/^TRACKNUMBER=/i) {
- $track = $value;
-
- # Intentionally don't match the = on this one, to support the
- # TITLE[1] .. TITLE[n] tag style.
- } elsif (/^TITLE/i) {
- push(@$titles, $value);
- }
- }
- close(TAGS) or die("close(metaflac --export-vc-to=- $fn): $?");
-
- return ($artist, $album, $date, $discnum, $track);
-}
-
-sub arg {
- my $arg = shift;
- my $var = shift;
-
- if (defined($$var)) {
- $$var = "$arg '$$var'";
- } else {
- $$var = ''
- }
-}
-
-sub flac2mp3 {
- my $fn = shift;
- my $title = shift;
- my $artist = shift;
- my $album = shift;
- my $date = shift;
- my $track = int(shift);
- my $skip_arg = shift;
- my $until_arg = shift;
- my @tmp;
- my $outfile;
-
- if ($quiet) {
- $flac_options = '--silent';
- } else {
- $flac_options = '';
- }
-
- if ($lame_options) {
- push(@tmp, $lame_options);
- } else {
- push(@tmp, '--preset standard');
- }
- $quiet and push(@tmp, '--quiet');
- $verbose and push(@tmp, '--verbose');
- $lame_options = join(' ', @tmp);
-
- # We'll be putting these in single quotes, so we need to escape
- # any single quotes in the filename by closing the quote ('),
- # putting an escaped quote (\'), and then reopening the quote (').
- for ($fn, $title, $artist, $album, $date) {
- defined and s/'/'\\''/g;
- }
-
- $outfile = sprintf("$artist ($album) \%02s $title.mp3", $track);
- $outfile =~ s/\//_/g;
-
- arg('--tt', \$title);
- arg('--ta', \$artist);
- arg('--tl', \$album);
- arg('--ty', \$date);
- arg('--tn', \$track);
-
- $skip_arg ||= '';
- $until_arg ||= '';
- run_or_die(join(' ', "flac $flac_options -cd $skip_arg $until_arg '$fn'",
- " | lame $lame_options $title $artist $album $date $track",
- " - '$outfile'"));
-}
-
-MAIN: {
- my $help;
- GetOptions(
- 'lame-options=s', \$lame_options,
- 'quiet|q' => \$quiet,
- 'verbose|v' => \$verbose,
- 'help|h|?' => \$help,
- ) or pod2usage();
- $help and pod2usage(-exitstatus=>0, -verbose=>1);
-
- @ARGV or pod2usage();
- for my $fn (@ARGV) {
- my @args = get_decode_args($fn);
- my (@artists, @titles);
- my ($artist, $album, $date, $discnum, $track) = get_tags($fn, \@artists,
- \@titles);
-
- # lame doesn't seem to support disc number.
- defined($discnum) and $album .= " (disc $discnum)";
-
- # Stupid hack: only a single-track file should have the
- # TRACKNUMBER tag, so use it if set for the first pass through
- # the loop. At the end of the loop, we'll set $track for the
- # next run, so this continues to work for multi-track files.
- $track ||= 1;
-
- for my $i (0..$#titles) {
- flac2mp3($fn, $titles[$i], ($artists[$i] or $artist), $album, $date,
- $track, @{$args[$i]});
- $track = $i + 2;
- }
- }
-}
-
-\f
-__END__
projects / flac-archive / blobdiff