X-Git-Url: https://diplodocus.org/git/flac-archive/blobdiff_plain/70dbeaf6b456442a8d9037774b572632f5baa55d..6c58deb659519e8e298a4e65e340a50ba37d6175:/flac2mp3

diff --git a/flac2mp3 b/flac2mp3
index 8c4e746..999fd66 100755
--- a/flac2mp3
+++ b/flac2mp3
@@ -1,159 +1,46 @@
-#! /usr/bin/env perl
-
-# $Id$
+#! /usr/bin/env python2.4
 
+'''
 =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
+=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 POSIX ':sys_wait_h';
-use Pod::Usage;
-
-sub run_or_die {
-    my $command = shift;
-    my $status;
-
-    $status = system($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);
-    }
-
-    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 ||= '';
-    run_or_die(join(' ', "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]});
-    }
-}
-
-
-__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
 
@@ -161,10 +48,258 @@ Written by Eric Gillespie <epg@pretzelnet.org>.
 
 =cut
 
-# Local variables:
-# cperl-indent-level: 4
-# perl-indent-level: 4
-# indent-tabs-mode: nil
-# End:
-
-# vi: set tabstop=4 expandtab:
+''' #' # python-mode is sucks
+
+import re, sys, traceback
+from optparse import OptionParser
+from subprocess import Popen, PIPE
+
+import org.diplodocus.jobs
+from org.diplodocus import flac, taglib
+from org.diplodocus.util import run_or_die
+
+################################################################################
+# The child processes
+
+def flac2mp3(fn, title, artist, album, 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 = ''
+
+    try:
+        (skip_arg, until_arg) = skip_until
+    except ValueError:
+        skip_arg = until_arg = ''
+
+    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)
+
+    outfile = ('%s (%s) %02d %s.mp3' % (artist, album,
+                                        track, title)).replace('/', '_')
+
+    # Escape any single quotes ' so we can quote this.
+    (fn, title, artist,
+     album, date) = [x.replace("'", r"'\''")
+                     for x in (fn, title, artist, album, date)]
+
+    quoted_outfile = ('%s (%s) %02d %s.mp3' % (artist, album,
+                                               track, title)).replace('/', '_')
+
+    run_or_die(3, "flac %s -cd %s %s '%s' | lame --add-id3v2 %s --tt '%s' --ta '%s' --tl '%s' --ty '%s' --tn %d - '%s'"
+               % (flac_options, skip_arg or '', until_arg or '', fn,
+                  lame_options, title, artist, album, date, track,
+                  quoted_outfile))
+
+    if pics != None:
+        taglib.add_apic_frame_to_mp3(outfile, pics)
+
+    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', '--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
+
+# XXX other things should usue this; flac files, for example, should
+# get PART as part of the filelname, same as mp3s.
+class Tags(object):
+    def __init__(self):
+        self._tags = {}
+    def __len__(self):
+        return len(self._tags)
+    def get(self, key, track=None):
+        key = key.upper()
+        try:
+            if track == None:
+                return self._tags[None][key]
+            try:
+                return self._tags[track][key]
+            except KeyError:
+                return self._tags[None][key]
+        except KeyError:
+            return None
+    def gets(self, key, track=None):
+        value = self.get(key, track)
+        if value == None:
+            return None
+        return '\n'.join(value)
+    def set(self, key, value, track=None):
+        key = key.upper()
+        if track not in self._tags:
+            self._tags[track] = {}
+        if key not in self._tags[track]:
+            self._tags[track][key] = []
+        self._tags[track][key].append(value)
+
+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', '--export-tags-to=-', fn], stdout=PIPE)
+    for line in (x.rstrip() for x in p.stdout):
+        (tag, value) = line.split('=', 1)
+
+        m = re.search(r'\[([0-9]+)]$', tag)
+        if m != None:
+            tag = tag[:m.start()]
+            track = int(m.group(1))
+        else:
+            track = None
+
+        tags.set(tag, value, track)
+    # XXX dataloss!  check status
+    status = p.wait()
+
+    return tags
+
+def find_pics(fn, tags):
+    pics = tags.get('__flac2mp3_PICTURE')
+
+    if not isinstance(pics, list):
+        pics = flac.get_pictures(fn)
+        tags.set('__flac2mp3_PICTURE', pics)
+
+    return pics
+
+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
+
+    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')
+                discnum = tags.gets('DISCNUMBER')
+                track = tags.gets('TRACKNUMBER')
+
+                # lame doesn't seem to support disc number.
+                if discnum != None:
+                    album = '%s (disc %s)' % (album, 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.
+                if track == None:
+                    track = 1
+                else:
+                    track = int(track)
+
+                for i in range(len(tags)):
+                    title = tags.gets('TITLE', track)
+                    part = tags.gets('PART', track)
+                    if part != None:
+                        title = '%s - %s' % (title, part)
+                    jobs.append([fn, title,
+                                 tags.gets('ARTIST', track),
+                                 album,
+                                 tags.gets('DATE', track),
+                                 track, args[i], find_pics(fn, tags)])
+                    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))