diplodocus.org Git - flac-archive/blob - flac2mp3

   1 #!/usr/local/bin/perl
   2
   3 =head1 NAME
   4
   5 B<flac2mp3> - transcode FLAC file to MP3 files
   6
   7 =head1 SYNOPSIS
   8
   9 B<flac2mp3> [B<--lame-options> I<lame-options>] [B<-q>] [B<-v>] I<file> [...]
  10
  11 =head1 DESCRIPTION
  12
  13 B<flac2mp3> transcodes the FLAC files I<file> to MP3 files.  I<file>
  14 may be the kind of FLAC file B<fa-flacd> generates.  That is, it
  15 contains a cue sheet, one TITLE tag per track listed therein, and
  16 ARTIST, ALBUM, and DATE tags.
  17
  18 Note that lame is retarded, and parses B<LANG> directly itself!  So, in order
  19 for it to transcode textual tags, you must specify the encoding in LANG, e.g.
  20 LANG=en_US.utf-8
  21
  22 =head1 OPTIONS
  23
  24 =over 4
  25
  26 =item B<--lame-options> I<lame-options>
  27
  28 Pass I<lame-options> to B<lame>.  This ends up being passed to the
  29 shell, so feel free to take advantage of that.  You'll almost
  30 certainly have to put I<lame-options> in single quotes.
  31
  32 =item B<-q> [B<--quiet>]
  33
  34 Suppress status information.  This option is passed along to B<flac>
  35 and B<lame>.
  36
  37 =item B<-v> [B<--verbose>]
  38
  39 Print diagnostic information.  This option is passed along to B<flac>
  40 and B<lame>.
  41
  42 =back
  43
  44 =head1 AUTHORS
  45
  46 Written by Eric Gillespie <epg@pretzelnet.org>.
  47
  48 =cut
  49
  50 package epg::flac::archive::mp3;
  51
  52 use v5.12;
  53 use warnings;
  54
  55 use File::Temp;
  56 use FindBin;
  57
  58 require "$FindBin::Bin/tags.pl";
  59 epg::flac::archive::tags->import(
  60     qw[
  61         track_tags
  62         read_tags_metaflac
  63         mangle_for_file_name
  64         quote
  65         two_digits
  66     ]);
  67
  68 sub flac2mp3 {
  69     my $mp3 = shift;
  70     my $flac = shift;
  71     my $tags = shift;
  72     # This is an old TODO; what's wrong with --ty ?
  73     # TODO: Look at TDOR, TDRL, TDRC for date.
  74     say(join(' ',
  75              'flac',
  76              '-cd',
  77              quote($flac),
  78              '|',
  79              'lame',
  80              '--id3v2-only',
  81              '--id3v2-latin1',
  82              '--pad-id3v2-size', 0,
  83              '--preset standard',
  84              '--ta',
  85              quote($tags->{artist}),
  86              '--tl',
  87              quote($tags->{album}),
  88              '--tn',
  89              quote($tags->{tracknumber}),
  90              '--tt',
  91              quote($tags->{title}),
  92              '--ty',
  93              quote($tags->{date}),
  94              '$pic_options',
  95              #(map { ('--tv', quote("TPE2=$_")) } @{$albumartist}),
  96              (map { ('--tv', quote("TPOS=$_")) } @{$tags->{discnumber}}),
  97              '-',
  98              quote($mp3),
  99         ))
 100 }
 101
 102 sub main {
 103     for my $flac (@_) {
 104         say('metaflac --export-picture-to=flac2mp3.cover.$$ ', quote($flac), ' && pic_options="--ti flac2mp3.cover.$$"');
 105         my %tags = track_tags(read_tags_metaflac($flac));
 106         flac2mp3(
 107             mangle_for_file_name(
 108                 join(' ',
 109                      $tags{artist},
 110                      $tags{album},
 111                      (map { two_digits($_) } @{$tags{discnumber}}),
 112                      two_digits($tags{tracknumber}),
 113                      $tags{title},
 114                 ))
 115             . '.mp3',
 116             $flac,
 117             \%tags,
 118             );
 119         say('unset pic_options');
 120     }
 121     say('rm -f flac2mp3.cover.$$');
 122
 123     return 0;
 124 }
 125
 126 if (!caller) {
 127     exit(main(@ARGV))
 128 }
 129
 130 1;