X-Git-Url: https://diplodocus.org/git/flac-archive/blobdiff_plain/10d83bbfbcd2461f4fd53f6bc17d1250922214b5..49c989802328cc7723f410d6d8b92754d207981e:/fa-encode

diff --git a/fa-encode b/fa-encode
index c18b1bc..9388f07 100755
--- a/fa-encode
+++ b/fa-encode
@@ -15,64 +15,45 @@ TODO:  implement B<-d>
 
 =cut
 
-# POSIX.1-2017, Base Definitions, 3.282  Portable Filename Character Set says
-#   [A-Za-z0-9._-]
-# https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282
-
-# Flac tags (set with `flac -T fieldname=...`) are Vorbis comments.
-# https://www.xiph.org/vorbis/doc/v-comment.html#fieldnames field names we care about:
-# - TITLE - Track/Work name
-# - VERSION - may be used to differentiate multiple versions of the same track title in a single collection. (e.g. remix info)
-# - ALBUM - The collection name to which this track belongs
-# - TRACKNUMBER - The track number of this piece
-# - ARTIST - The artist generally considered responsible for the track
-# - DATE - Date the track was recorded (XXX I use US release date)
-# I use one more, though I'm unsure where I got it.  Did I make it up?
-# - DISCNUMBER - number in multi-disc collection
-
-# Input is a directory containing:
-# - trackNN.cdda.wav - WAV  format files ripped from CD-DA audio tracks where NN is track number 01 - 99
-# - tags - described below
-# - cover.front.jpeg - optional JPEG format file containing the album front cover
-
-# The tags file is composed of two blocks:
-# 1. album tags
-# 2. track tags
-# Album tags may be:
-# - ALBUM
-# - ARTIST
-# - DATE
-# - DISCNUMBER (optional)
-
-# Track tags may be any of the rest of the tags listed above, suffixed with
-# [N] where N is the track number.  ARTIST, and only ARTIST, may also appear
-# in the track tags.  In this case, it overrides the album artist.  In order
-# to add artists, the album artist must be listed again.  For example, Reba
-# McEntire's "The Heart Won't Lie" on the album "It's Your Call" features
-# Vince Gill, and is specified as:
-# ARTIST=Reba McEntire
-# ALBUM=It's Your Call
-# TITLE[5]=The Heart Won't Lie
-# ARTIST[5]=Reba McEntire
-# ARTIST[5]=Vince Gill
-
 package epg::flac::archive::encode;
 
 use v5.12;
 use warnings;
 
 use FindBin;
+use Pod::Usage;
+
+use lib $FindBin::Bin;
 
-require "$FindBin::Bin/tags.p";
+require 'tags.pl';
 epg::flac::archive::tags->import(
     qw[
         read_tags
         mangle_for_file_name
         quote
+        track_tags_from_disc
+        two_digits
     ]);
 
+sub filename {
+    my ($tracknumber, $tags) = @_;
+    my $title = $tags->{TITLE} // die('title required');
+    my @discnumber = @{$tags->{DISCNUMBER} // []};
+    my @partnumber = @{$tags->{PARTNUMBER} // []};
+    my @version = @{$tags->{VERSION} // []};
+    join('-',
+         (map { two_digits($_) } @discnumber),
+         two_digits($tracknumber),
+         mangle_for_file_name(join('TODO multi-title?', @$title)),
+         # TODO more than one VERSION?
+         (map { mangle_for_file_name($_) } @version),
+         @partnumber,
+        )
+        . '.flac',
+}
+
 sub main {
-    my $input_directory = shift;
+    my $input_directory = shift || pod2usage();
     my $fn = "$input_directory/tags";
     open(my $fh, '<', $fn) || die("open($fn): $!");
     my ($album, $tracks) = read_tags($fh);
@@ -104,6 +85,7 @@ sub main {
     my $dir = join('/', '..', mangle_for_file_name($artist), mangle_for_file_name($album_tag));
 
     say('set -ex');
+    say('cd ', quote($input_directory));
     say('mkdir -p ', quote($dir));
     my $tracknum = 0;
     for my $track (@$tracks) {
@@ -123,17 +105,17 @@ sub main {
             $track->{DISCNUMBER} = \@discnumber;
         }
         my $title = join(' ', @{$track->{TITLE}});
-        my $tracknum_s = sprintf('%02d', $tracknum);
         my $fn = join('/',
                       $dir,
-                      join('_',
-                           (map { sprintf('%02d', $_) } @discnumber),
-                           $tracknum_s,
-                           mangle_for_file_name($title) . '.flac',
+                      filename(
+                          $tracknum,
+                          {track_tags_from_disc($album, $tracks, $tracknum)}
                       ),
             );
         -e $fn && die("cowardly refusing to clobber $fn");
-        my @pictures = ('--picture', quote('3|image/jpeg|||cover.front')); # TODO optional
+        my @pictures = ('--picture', quote('3|image/jpeg|||cover.front.jpeg')); # TODO optional
+        @pictures = ();         # XXX
+        my $tracknum_s = two_digits($tracknum);
         say(join(' ',
                  'flac -o',
                  quote($fn),
@@ -151,7 +133,7 @@ sub main {
                  "track$tracknum_s.cdda.wav"
             ));
     }
-    say('rm tags cover.front');
+    say('rm tags cover.front.jpeg');
 
     return 0;
 }
@@ -161,4 +143,3 @@ if (!caller) {
 }
 
 1;
-