ripcd: Support ripping to Flac as well as Vorbis

ripcd.py

@@ -100,7 +100,7 @@ class Track(object):
         'Tracktitle': 'title',
     }
 
-    FILENAME_FORMAT = '{tracknumber:0>2} {artist} - {title}.ogg'
+    FILENAME_FORMAT = '{tracknumber:0>2} {artist} - {title}.{ext}'
 
     def __init__(self):
         self.filename = None
@@ -108,10 +108,13 @@ class Track(object):
 
     @property
     def outfile(self):
-        if self.tags:
-            return self.FILENAME_FORMAT.format(**self.tags)
+        if self.tags.get('title'):
+            return self.FILENAME_FORMAT.format(ext=self.extension, **self.tags)
         else:
-            return os.path.splitext(self.filename)[0] + '.ogg'
+            return '{filename}.{ext}'.format(
+                filename=os.path.splitext(self.filename)[0],
+                ext=self.extension,
+            )
 
     @classmethod
     def from_file(cls, filename):
@@ -145,13 +148,28 @@ class Track(object):
                 self.tags[tag] = titlecase(value.strip().strip("'"))
 
     @asyncio.coroutine
-    def to_vorbis(self, lock=None):
+    def encode(self, lock=None):
         assert self.filename
         loop = asyncio.get_event_loop()
         yield from loop.run_in_executor(None, self._parse_inf)
         if lock:
             yield from lock.acquire()
         print('Encoding {} as {}'.format(self.filename, self.outfile))
+
+    def write_tags(self):
+        tags = mutagen.File(self.outfile, easy=True)
+        tags.update(self.tags)
+        tags.save()
+
+
+class VorbisTrack(Track):
+
+    extension = 'ogg'
+
+    @asyncio.coroutine
+    def encode(self, lock=None):
+        yield from super(VorbisTrack, self).encode(lock)
+        loop = asyncio.get_event_loop()
         cmd = ['oggenc', '-q', '9', '-Q', '-o', self.outfile, self.filename]
         p = yield from asyncio.create_subprocess_exec(*cmd)
         yield from p.wait()
@@ -162,10 +180,24 @@ class Track(object):
         if self.tags:
             yield from loop.run_in_executor(None, self.write_tags)
 
-    def write_tags(self):
-        tags = mutagen.File(self.outfile, easy=True)
-        tags.update(self.tags)
-        tags.save()
+
+class FlacTrack(Track):
+
+    extension = 'flac'
+
+    @asyncio.coroutine
+    def encode(self, lock=None):
+        yield from super(FlacTrack, self).encode(lock)
+        loop = asyncio.get_event_loop()
+        cmd = ['flac', '-s', '-o', self.outfile, self.filename]
+        p = yield from asyncio.create_subprocess_exec(*cmd)
+        yield from p.wait()
+        if p.returncode != 0:
+            sys.stderr.write('Failed to encode {}\n'.format(self.filename))
+        if lock:
+            lock.release()
+        if self.tags:
+            yield from loop.run_in_executor(None, self.write_tags)
 
 
 @asyncio.coroutine
@@ -222,13 +254,14 @@ def rip_info(device):
 
 
 @asyncio.coroutine
-def rip_tracks(device, num_encoders=None):
+def rip_tracks(device, codec, num_encoders=None):
     if not num_encoders:
         num_encoders = multiprocessing.cpu_count()
     cmd = ['icedax']
     if device:
         cmd.extend(('--device', device))
     cmd.extend((
+        '--max',
         '--alltracks',
         '--no-infofile',
         '--verbose-level', 'summary',
@@ -242,7 +275,13 @@ def rip_tracks(device, num_encoders=None):
     lock = asyncio.Semaphore(num_encoders)
     tasks = []
     for filename in glob.glob('*.wav'):
-        tasks.append(Track.from_file(filename).to_vorbis(lock))
+        if codec == 'vorbis':
+            track = VorbisTrack.from_file(filename)
+        elif codec == 'flac':
+            track = FlacTrack.from_file(filename)
+        else:
+            raise ValueError('Unsupported codec: {}'.format(codec))
+        tasks.append(track.encode(lock))
     yield from asyncio.wait(tasks)
 
 
@@ -282,6 +321,9 @@ def parse_args():
     parser.add_argument('--no-clean', dest='cleanup', action='store_false',
                         default=True,
                         help='Do not remove temporary files')
+    parser.add_argument('--codec', '-c', choices=('vorbis', 'flac'),
+                        default='vorbis',
+                        help='Encode audio with specific codec')
     parser.add_argument('device', nargs='?',
                         help='CD-ROM device to use')
     return parser.parse_args()