-#! /usr/bin/env perl
-
-# $Id$
+#!/usr/bin/python
+"""
=head1 NAME
B<flac2mp3> - transcode FLAC file to MP3 files
=head1 SYNOPSIS
-B<flac2mp3> I<file>
+B<flac2mp3> [B<--lame-options> I<lame-options>] [B<-j> I<jobs>] [B<-q>] [B<-v>] I<file> [...]
=head1 DESCRIPTION
-B<flac2mp3> transcodes the FLAC file I<file> to MP3 files. I<file> is
-the kind of FLAC file B<fa-flacd> generates. That is, it contains a
-cue sheet, one TITLE tag per track listed therein, and ARTIST, ALBUM,
-and DATE tags.
+B<flac2mp3> transcodes the FLAC files I<file> to MP3 files. I<file>
+may be the kind of FLAC file B<fa-flacd> generates. That is, it
+contains a cue sheet, one TITLE tag per track listed therein, and
+ARTIST, ALBUM, and DATE tags.
-=cut
+Note that lame is retarded, and parses B<LANG> directly itself! So, in order
+for it to transcode textual tags, you must specify the encoding in LANG, e.g.
+LANG=en_US.utf-8
+
+=head1 OPTIONS
+
+=over 4
+
+=item B<--lame-options> I<lame-options>
+
+Pass I<lame-options> to B<lame>. This ends up being passed to the
+shell, so feel free to take advantage of that. You'll almost
+certainly have to put I<lame-options> in single quotes.
+
+=item B<-j> [B<--jobs>] I<jobs>
-use strict;
-use warnings;
-
-use Pod::Usage;
-
-sub tformat {
- my $min = shift;
- my $sec = shift;
- my $hun = shift;
- return "$min:$sec.$hun";
-}
-
-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);
- }
-
- 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 $tag;
- my $value;
- my $artist;
- my $album;
- my $date;
- my @titles;
-
- open(TAGS, '-|', 'metaflac', '--export-vc-to=-', $fn)
- or die("open(metaflac --export-vc-to=- $fn): $!");
- while (<TAGS>) {
- chomp;
-
- ($tag, $value) = split(/=/, $_, 2);
-
- if (/^ARTIST=/) {
- $artist = $value;
- } elsif (/^ALBUM=/) {
- $album = $value;
- } elsif (/^DATE=/) {
- $date = $value;
- } elsif (/TITLE=/) {
- push(@titles, $value);
- }
- }
- close(TAGS) or die("close(metaflac --export-vc-to=- $fn): $?");
-
- return ($artist, $album, $date, @titles);
-}
-
-sub flac2mp3 {
- my $fn = shift;
- my $title = shift;
- my $artist = shift;
- my $album = shift;
- my $date = shift;
- my $track = shift;
- my $skip_arg = shift;
- my $until_arg = shift;
- my $outfile;
-
- # We'll be putting these in single quotes, so we need to escape
- # any single quotes in the filename by closing the quote ('),
- # putting an escaped quote (\'), and then reopening the quote (').
- for ($fn, $title, $artist, $album, $date) {
- s/'/'\\''/;
- }
-
- $outfile = sprintf("$artist ($album) \%02s $title.mp3", $track);
- $outfile =~ s/\//_/g;
-
- $until_arg ||= '';
- # XXX
- system("flac -cd $skip_arg $until_arg '$fn' | lame --preset standard --tt '$title' --ta '$artist' --tl '$album' --ty '$date' --tn $track - '$outfile'");
-}
-
-MAIN: {
- my $fn = shift or pod2usage();
- my @args = get_decode_args($fn);
- my ($artist, $album, $date, @titles) = get_tags($fn);
-
- for my $i (0..$#titles) {
- flac2mp3($fn, $titles[$i], $artist, $album, $date, $i + 1,
- @{$args[$i]});
- }
-}
-
-\f
-__END__
+Run up to I<jobs> jobs instead of the default 1.
+
+=item B<-q> [B<--quiet>]
+
+Suppress status information. This option is passed along to B<flac>
+and B<lame>.
+
+=item B<-v> [B<--verbose>]
+
+Print diagnostic information. This option is passed along to B<flac>
+and B<lame>.
+
+=back
=head1 AUTHORS
=cut
-# Local variables:
-# cperl-indent-level: 4
-# perl-indent-level: 4
-# indent-tabs-mode: nil
-# End:
-
-# vi: set tabstop=4 expandtab:
+"""
+
+import os, re, sys, tempfile, traceback
+from optparse import OptionParser
+from subprocess import Popen, PIPE
+
+import org.diplodocus.jobs
+from org.diplodocus.util import run_or_die
+
+from flac_archive import flac
+from flac_archive.tags import Tags
+
+################################################################################
+# The child processes
+
+def flac2mp3(fn, title, artist, album_artist, album, discnum, date,
+ track, skip_until, pics=None):
+ (title, artist, album) = [(x == None and 'unknown') or x
+ for x in (title, artist, album)]
+ if date == None:
+ date = ''
+
+ if quiet:
+ flac_options = '--silent'
+ else:
+ flac_options = ''
+
+ tmp = []
+ global lame_options
+ if lame_options != None:
+ tmp.append(lame_options)
+ else:
+ tmp.append('--preset standard');
+ quiet and tmp.append('--quiet')
+ verbose and tmp.append('--verbose')
+ lame_options = ' '.join(tmp)
+
+ # Escape any single quotes ' so we can quote this.
+ (fn, title, artist, album_artist,
+ album, date) = [(x or '').replace("'", r"'\''")
+ for x in [fn, title, artist, album_artist, album, date]]
+
+ album_artist_options = ''
+ if album_artist:
+ album_artist_options = "--tv 'TPE2=%s'" % album_artist
+
+ outfile_album = album
+ discnum_options = ''
+ if discnum != None:
+ outfile_album = '%s (disc %s)' % (album, discnum)
+ discnum_options = "--tv 'TPOS=%d'" % int(discnum)
+
+ quoted_outfile = ('%s (%s) %02d %s.mp3' % (artist, outfile_album,
+ track, title)).replace('/', '_')
+
+ pic_options = None
+ if pics:
+ (fd, picfn) = tempfile.mkstemp()
+ f = os.fdopen(fd, 'wb')
+ f.write(pics[0][7])
+ f.close()
+ pic_options = "--ti '%s'" % picfn
+ try:
+ run_or_die(3, "flac %s -cd %s '%s' | lame --id3v2-only --id3v2-latin1 --pad-id3v2-size 0 %s --tt '%s' --ta '%s' --tl '%s' --ty '%s' --tn %d %s %s %s - '%s'"
+ % (flac_options, ' '.join(skip_until), fn,
+ lame_options, title, artist, album, date, track,
+ pic_options, album_artist_options,
+ discnum_options, quoted_outfile))
+ finally:
+ if pic_options:
+ try:
+ os.unlink(picfn)
+ except:
+ pass
+
+ return 0
+
+################################################################################
+# The master process
+
+def tformat(m, s, c):
+ return '%02d:%02d.%02d' % (m, s, c)
+
+def get_decode_args(fn):
+ l = []
+
+ p = Popen(['metaflac', '--no-utf8-convert', '--export-cuesheet-to=-', fn],
+ stdout=PIPE)
+ for line in (x.rstrip() for x in p.stdout):
+ m = re.search(r'INDEX 01 (\d\d):(\d\d):(\d\d)$', line)
+ if m != None:
+ l.append(map(int, m.groups()))
+ status = p.wait()
+ # XXX dataloss! check status
+
+ args = []
+ for i in xrange(len(l)):
+ arg = ['--skip=' + tformat(*l[i])]
+ try:
+ next = l[i + 1]
+ except IndexError:
+ next = None
+ if next != None:
+ if next[2] == 0:
+ if next[1] == 0:
+ arg.append('--until=' + tformat(next[0] - 1, 59, 74))
+ else:
+ arg.append('--until=' + tformat(next[0], next[1] - 1,
+ 74))
+ else:
+ arg.append('--until=' + tformat(next[0], next[1],
+ next[2] - 1))
+
+ args.append(arg)
+
+ # If no cue sheet, stick a dummy in here.
+ if len(args) == 0:
+ args = [[]]
+
+ return args
+
+def get_tags(fn):
+ """Return the ARTIST, ALBUM, and DATE tags followed by the TITLE tags
+ in the file FN."""
+
+ tags = Tags()
+
+ p = Popen(['metaflac', '--no-utf8-convert', '--export-tags-to=-', fn],
+ stdout=PIPE)
+ tags.load(p.stdout)
+
+ # XXX dataloss! check status
+ status = p.wait()
+
+ return tags
+
+def main(argv):
+ # Control the exit code for any uncaught exceptions.
+ try:
+ parser = OptionParser()
+ parser.disable_interspersed_args()
+ parser.add_option('-X', '--debug', action='store_true', default=False)
+ parser.add_option('-j', '--jobs', type='int', default=1)
+ parser.add_option('--lame-options')
+ parser.add_option('-q', '--quiet', action='store_true', default=False)
+ parser.add_option('-v', '--verbose', action='store_true', default=False)
+ except:
+ traceback.print_exc()
+ return 2
+
+ try:
+ # Raises SystemExit on invalid options in argv.
+ (options, args) = parser.parse_args(argv[1:])
+ except Exception, error:
+ if isinstance(error, SystemExit):
+ return 1
+ traceback.print_exc()
+ return 2
+
+ separator = ' '
+ try:
+ global debug, flac_options, lame_options, quiet, verbose
+ debug = options.debug
+ lame_options = options.lame_options
+ quiet = options.quiet
+ verbose = options.verbose
+
+ jobs = []
+ for fn in args:
+ try:
+ args = get_decode_args(fn)
+
+ tags = get_tags(fn)
+ album = tags.gets('ALBUM', separator=separator)
+ discnum = tags.gets('DISCNUMBER')
+ track = tags.gets('TRACKNUMBER')
+
+ # 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.
+ if track == None:
+ track = 1
+ else:
+ track = int(track)
+
+ pics = flac.get_pictures(fn)
+
+ for i in range(len(tags)):
+ title = tags.gets('TITLE', track, separator)
+ part = tags.gets('PART', track)
+ if part != None:
+ title = '%s - %s' % (title, part)
+ version = tags.gets('VERSION', track)
+ if version != None:
+ title = '%s (%s)' % (title, version)
+ artist = tags.get('ARTIST', track)
+ artist.extend(tags.get('FEATURING', track))
+ album_artist = tags.gets('ALBUMARTIST', track)
+ jobs.append((fn, title,
+ ', '.join(artist),
+ album_artist, album, discnum,
+ tags.gets('DATE', track),
+ track, args[i], pics))
+ track = i + 2
+ except Exception, error:
+ sys.stderr.write(getattr(error, 'msg', ''))
+ traceback.print_exc()
+ sys.stderr.write('Continuing...\n')
+
+ def getjob(reap):
+ try:
+ job = jobs.pop(0)
+ except IndexError:
+ return
+ return lambda: flac2mp3(*job)
+ org.diplodocus.jobs.run(maxjobs=options.jobs, debug=debug, get_job=getjob)
+ except Exception, error:
+ if isinstance(error, SystemExit):
+ raise
+ # check all print_exc and format_exc in fa-flacd.py; i think
+ # for some i don't do this msg print check
+ sys.stderr.write(getattr(error, 'msg', ''))
+ traceback.print_exc()
+ return 2
+
+ return 0
+
+if __name__ == '__main__':
+ sys.exit(main(sys.argv))
projects / flac-archive / blobdiff