#!/usr/bin/env python
#
-# Copyright (C) 2009-2012 W. Trevor King <wking@drexel.edu>
+# Copyright (C) 2009-2015 W. Trevor King <wking@drexel.edu>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
Conversion between any of the following formats are supported:
* flac
-* m4a (decoding only)
+* mp4 (decoding only)
* mp3
* ogg (Vorbis)
* wav
"""
from hashlib import sha256 as _hash
-import os
-import os.path
+import os as _os
import re as _re
-import shutil
-from subprocess import Popen, PIPE
-from tempfile import mkstemp
+import shutil as _shutil
+import subprocess as _subprocess
+import tempfile as _tempfile
try:
- import mutagen.flac
- import mutagen.id3
- import mutagen.m4a
- import mutagen.mp3
- import mutagen.oggvorbis
-except ImportError, _mutagen_import_error:
- mutagen = None
+ import mutagen as _mutagen
+ import mutagen.flac as _mutagen_flac
+ import mutagen.id3 as _mutagen_id3
+ import mutagen.mp4 as _mutagen_mp4
+ import mutagen.mp3 as _mutagen_mp3
+ import mutagen.oggvorbis as _mutagen_oggvorbis
+except ImportError as error:
+ _mutagen = None
+ _mutagen_import_error = error
-__version__ = '0.4'
+__version__ = '0.5'
def invoke(args, stdin=None, expect=(0,)):
print(' {}'.format(args))
- p = Popen(args, stdin=PIPE, stdout=PIPE, stderr=PIPE)
+ p = _subprocess.Popen(
+ args, stdin=_subprocess.PIPE, stdout=_subprocess.PIPE,
+ stderr=_subprocess.PIPE)
stdout,stderr = p.communicate(stdin)
status = p.wait()
assert status in expect, 'invalid status {} from {}'.format(status, args)
'tyer': 'date',
}
- m4a_to_vorbis_keys = {
+ mp4_to_vorbis_keys = {
'\xa9cmt': 'comment',
'\xa9alb': 'album',
#'tcom': 'composer',
cache_file=None, hash=True, ignore_function=None):
self.source_dir = source_dir
self.target_dir = target_dir
- self._source_extensions = ['flac', 'm4a', 'mp3', 'ogg', 'wav']
+ self._source_extensions = ['flac', 'm4a', 'mp3', 'mp4', 'ogg', 'wav']
self._target_extension = target_extension
self._cache_file = cache_file
self._cache = self._read_cache()
self._hash = hash
self._ignore_function = ignore_function
- f,self._tempfile = mkstemp(prefix='mkogg-')
+ f,self._tempfile = _tempfile.mkstemp(prefix='mkogg-')
def cleanup(self):
- os.remove(self._tempfile)
+ _os.remove(self._tempfile)
self._save_cache()
def _read_cache(self):
return
with open(self._cache_file, 'w') as f:
f.write('# mkogg cache version: {}\n'.format(__version__))
- for key,value in self._cache.iteritems():
+ for key,value in self._cache.items():
f.write('{} -> {}\n'.format(key, value))
def run(self):
self._makedirs(self.target_dir)
- for dirpath,dirnames,filenames in os.walk(self.source_dir):
+ for dirpath,dirnames,filenames in _os.walk(self.source_dir):
for filename in filenames:
- root,ext = os.path.splitext(filename)
+ root,ext = _os.path.splitext(filename)
ext = ext.lower()
if ext.startswith('.'):
ext = ext[1:]
if ext not in self._source_extensions:
print('skip', filename, ext)
continue
- source_path = os.path.join(dirpath, filename)
+ source_path = _os.path.join(dirpath, filename)
if (self._ignore_function is not None and
self._ignore_function(source_path)):
continue
- rel_path = os.path.relpath(dirpath, self.source_dir)
- target_path = os.path.join(
+ rel_path = _os.path.relpath(dirpath, self.source_dir)
+ target_path = _os.path.join(
self.target_dir, rel_path,
'{}.{}'.format(root, self._target_extension))
- target_dir = os.path.dirname(target_path)
+ target_dir = _os.path.dirname(target_path)
self._makedirs(target_dir)
self._convert(source_path, target_path, ext)
def _makedirs(self, target_dir):
- if not os.path.exists(target_dir):
- os.makedirs(target_dir)
+ if not _os.path.exists(target_dir):
+ _os.makedirs(target_dir)
def _convert(self, source, target, ext):
if self._hash:
old_cache_value == self._cache_value(target)):
print('already cached {} to {}'.format(source, target))
return
- elif os.path.exists(target):
+ elif _os.path.exists(target):
print('target {} already exists'.format(target))
return
print('convert {} to {}'.format(source, target))
if ext == self._target_extension:
- shutil.copy(source, target)
+ _shutil.copy(source, target)
return
try:
convert = getattr(self, 'convert_{}_to_{}'.format(
if 'tracktotal' in metadata:
value = []
for i,v in enumerate(metadata['tracknumber']):
- value.append(u'{}/{}'.format(
+ value.append('{}/{}'.format(
v, metadata['tracktotal'][i]))
else:
value = metadata['tracknumber']
for id3_encoding,encoding in [(0, 'ISO-8859-1'), (3, 'utf-8')]:
encoding_success = True
for text in text_list:
- if isinstance(text, unicode):
+ if isinstance(text, str):
try:
text.encode(encoding)
except UnicodeEncodeError:
def convert_mp3_to_wav(self, source, target):
invoke(['mpg123', '-w', target, source])
+ def convert_mp4_to_wav(self, source, target):
+ invoke(['faad', '-o', target, source])
+
def convert_ogg_to_wav(self, source, target):
self.convert_flac_to_wav(source, target)
self.convert_flac_to_ogg(source, target)
def get_flac_metadata(self, source):
- if mutagen is None:
+ if _mutagen is None:
raise _mutagen_import_error
- return mutagen.flac.FLAC(source)
+ return _mutagen_flac.FLAC(source)
def get_m4a_metadata(self, source):
- if mutagen is None:
+ return self.get_mp4_metadata(source)
+
+ def get_mp3_metadata(self, source):
+ if _mutagen is None:
+ raise _mutagen_import_error
+ mp3 = _mutagen_mp3.MP3(source)
+ metadata = {}
+ for key,value in mp3.items():
+ try:
+ vorbis_key = self.id3_to_vorbis_keys[key.lower()]
+ except KeyError:
+ continue
+ v = value.text
+ if vorbis_key == 'tracknumber':
+ for i,v_entry in enumerate(v):
+ if '/' in v_entry:
+ tracknumber,tracktotal = v_entry.split('/', 1)
+ v[i] = tracknumber
+ metadata['tracktotal'] = ['tracktotal']
+ metadata[vorbis_key] = v
+ return metadata
+
+ def get_mp4_metadata(self, source):
+ if _mutagen is None:
raise _mutagen_import_error
- m4a = mutagen.m4a.M4A(source)
+ mp4 = _mutagen_mp4.MP4(source)
metadata = {}
- for key,value in m4a.items():
+ for key,value in mp4.items():
try:
- vorbis_key = self.m4a_to_vorbis_keys[key.lower()]
+ vorbis_key = self.mp4_to_vorbis_keys[key.lower()]
except KeyError:
continue
if vorbis_key == 'tracknumber':
value = disknumber
if disktotal:
metadata['set total'] = [str(disktotal)]
- metadata[vorbis_key] = [str(value)]
- return metadata
-
- def get_mp3_metadata(self, source):
- if mutagen is None:
- raise _mutagen_import_error
- mp3 = mutagen.mp3.MP3(source)
- metadata = {}
- for key,value in mp3.items():
try:
- vorbis_key = self.id3_to_vorbis_keys[key.lower()]
- except KeyError:
- continue
- v = value.text
- if vorbis_key == 'tracknumber':
- for i,v_entry in enumerate(v):
- if u'/' in v_entry:
- tracknumber,tracktotal = v_entry.split(u'/', 1)
- v[i] = tracknumber
- metadata['tracktotal'] = ['tracktotal']
- metadata[vorbis_key] = v
+ metadata[vorbis_key] = [str(value)]
+ except UnicodeEncodeError:
+ metadata[vorbis_key] = [value]
return metadata
def get_ogg_metadata(self, source):
- if mutagen is None:
+ if _mutagen is None:
raise _mutagen_import_error
- return mutagen.oggvorbis.OggVorbis(source)
+ return _mutagen_oggvorbis.OggVorbis(source)
def get_wav_metadata(self, source):
return {}
def set_flac_metadata(self, target, metadata):
- if mutagen is None:
+ if _mutagen is None:
raise _mutagen_import_error
- flac = mutagen.flac.FLAC(target)
+ flac = _mutagen_flac.FLAC(target)
self._set_vorbis_comments(flac, metadata)
flac.save()
def set_mp3_metadata(self, target, metadata):
vorbis_keys_to_id3 = dict(
(v,k) for k,v in self.id3_to_vorbis_keys.items())
- if mutagen is None:
+ if _mutagen is None:
raise _mutagen_import_error
- mp3 = mutagen.mp3.MP3(target)
+ mp3 = _mutagen_mp3.MP3(target)
if mp3.tags is not None:
mp3.tags.delete()
handled_trck = False
frame_name = vorbis_keys_to_id3[key].upper()
except KeyError:
continue
- frame = getattr(mutagen.id3, frame_name)
+ frame = getattr(_mutagen_id3, frame_name)
id3_encoding = self._guess_id3_encoding(value)
max_encoding = max(max_encoding, id3_encoding)
mp3[frame_name] = frame(encoding=id3_encoding, text=value)
mp3.save(v1=v1)
def set_ogg_metadata(self, target, metadata):
- if mutagen is None:
+ if _mutagen is None:
raise _mutagen_import_error
- ogg = mutagen.oggvorbis.OggVorbis(target)
+ ogg = _mutagen_oggvorbis.OggVorbis(target)
self._set_vorbis_comments(ogg, metadata)
ogg.save()
if __name__ == '__main__':
- import optparse
+ import argparse
import sys
- usage = '%prog [options] source-dir target-dir'
- epilog = __doc__
- p = optparse.OptionParser(usage=usage, epilog=epilog)
- p.format_epilog = lambda formatter: epilog+'\n'
- p.add_option('-t', '--target-extension', dest='ext',
- default='ogg', metavar='EXT',
- help='Conversion target type (e.g. flac, mp3) (%default)')
- p.add_option('-c', '--cache', dest='cache', metavar='PATH',
- help=('Save conversion hashes in a cache file to avoid '
- 'repeated previous conversions.'))
- p.add_option('-n', '--no-hash', dest='hash', action='store_false',
- default=True,
- help=("Don't hash files. Just assume matching names would "
- 'have matching hashes.'))
- p.add_option('-i', '--ignore', dest='ignore', metavar='REGEXP',
- help=('Ignore source paths matching REGEXP.'))
- p.add_option('--test', dest='test', action='store_true', default=False,
- help='Run internal tests and exit')
-
- options,args = p.parse_args()
-
- if options.test:
+ class Formatter (argparse.RawDescriptionHelpFormatter,
+ argparse.ArgumentDefaultsHelpFormatter):
+ pass
+
+ p = argparse.ArgumentParser(
+ description=__doc__.splitlines()[0],
+ epilog='\n'.join(__doc__.splitlines()[2:]),
+ formatter_class=Formatter)
+ p.add_argument(
+ '-v', '--version', action='version',
+ version='%(prog)s {}'.format(__version__))
+ p.add_argument(
+ '-t', '--target-extension', dest='ext', metavar='EXT',
+ default='ogg', choices=['flac', 'mp3', 'ogg', 'wav'],
+ help='Conversion target type')
+ p.add_argument(
+ '-c', '--cache', dest='cache', metavar='PATH',
+ help=('Save conversion hashes in a cache file to avoid '
+ 'repeated previous conversions.'))
+ p.add_argument(
+ '-n', '--no-hash', dest='hash',
+ default=True, action='store_const', const=False,
+ help=("Don't hash files. Just assume matching names would "
+ 'have matching hashes.'))
+ p.add_argument(
+ '-i', '--ignore', dest='ignore', metavar='REGEXP',
+ help='Ignore source paths matching REGEXP.')
+ p.add_argument(
+ '--test', dest='test',
+ default=False, action='store_const', const=True,
+ help='Run internal tests and exit')
+ p.add_argument(
+ 'source_dir', metavar='SOURCE', default='.',
+ help='Source directory')
+ p.add_argument(
+ 'target_dir', metavar='TARGET', default='.',
+ help='Target directory')
+
+ args = p.parse_args()
+
+ if args.test:
sys.exit(test())
- if options.ignore is not None:
- ignore_regexp = _re.compile(options.ignore)
+ if args.ignore:
+ ignore_regexp = _re.compile(args.ignore)
ignore_function = ignore_regexp.match
else:
ignore_function = None
- source_dir,target_dir = args
- c = Converter(source_dir, target_dir, target_extension=options.ext,
- cache_file=options.cache, hash=options.hash,
- ignore_function=ignore_function)
+ c = Converter(
+ args.source_dir, args.target_dir, target_extension=args.ext,
+ cache_file=args.cache, hash=args.hash,
+ ignore_function=ignore_function)
try:
c.run()
finally:
projects / blog.git / blobdiff