126 lines
4.6 KiB
Python
126 lines
4.6 KiB
Python
import os
|
|
import os.path
|
|
import sys
|
|
import re
|
|
#import logging
|
|
|
|
from mutagen import File as MusicFile
|
|
from mutagen.aac import AACError
|
|
|
|
try:
|
|
from collections import MutableMapping
|
|
except ImportError:
|
|
from UserDict import DictMixin as MutableMapping
|
|
try:
|
|
from tqdm import tqdm
|
|
except ImportError:
|
|
def tqdm(iterable, *args, **kwargs):
|
|
return iterable
|
|
|
|
# Set up logging
|
|
#logFormatter = logging.Formatter('%(asctime)s %(levelname)s: %(message)s')
|
|
#logger = logging.getLogger(__name__)
|
|
#logger.setLevel(logging.INFO)
|
|
#logger.handlers = []
|
|
#logger.addHandler(logging.StreamHandler())
|
|
#for handler in logger.handlers:
|
|
# handler.setFormatter(logFormatter)
|
|
|
|
class AudioFile(MutableMapping):
|
|
"""A simple class just for tag editing.
|
|
|
|
No internal mutagen tags are exposed, or filenames or anything. So
|
|
calling clear() won't destroy the filename field or things like
|
|
that. Use it like a dict, then .write() it to commit the changes.
|
|
When saving, tags that cannot be saved by the file format will be
|
|
skipped with a debug message, since this is a common occurrance
|
|
with MP3/M4A.
|
|
|
|
Optional argument blacklist is a list of regexps matching
|
|
non-transferrable tags. They will effectively be hidden, nether
|
|
settable nor gettable.
|
|
|
|
Or grab the actual underlying mutagen format object from the
|
|
.data field and get your hands dirty.
|
|
|
|
"""
|
|
def __init__(self, filename, blacklist=[], easy=True):
|
|
self.filename = filename
|
|
self.data = MusicFile(self.filename, easy=easy)
|
|
if self.data is None:
|
|
raise ValueError("Unable to identify %s as a music file" % (repr(filename)))
|
|
# Also exclude mutagen's internal tags
|
|
self.blacklist = [ re.compile("^~") ] + blacklist
|
|
def __getitem__(self, item):
|
|
if self.blacklisted(item):
|
|
#logger.debug("Attempted to get blacklisted key: %s." % repr(item))
|
|
return
|
|
else:
|
|
return self.data.__getitem__(item)
|
|
def __setitem__(self, item, value):
|
|
if self.blacklisted(item):
|
|
#logger.debug("Attempted to set blacklisted key: %s." % repr(item))
|
|
#print("DEBUG: Attempted to set blacklisted key: %s." % repr(item))
|
|
return
|
|
else:
|
|
try:
|
|
return self.data.__setitem__(item, value)
|
|
except KeyError:
|
|
#print("Skipping unsupported tag {0} for file type {0}".format(item, type(self.data)))
|
|
pass
|
|
#logger.debug("Skipping unsupported tag %s for file type %s",
|
|
# item, type(self.data))
|
|
def __delitem__(self, item):
|
|
if self.blacklisted(item):
|
|
#logger.debug("Attempted to del blacklisted key: %s." % repr(item))
|
|
return
|
|
else:
|
|
return self.data.__delitem__(item)
|
|
def __len__(self):
|
|
return len(self.keys())
|
|
def __iter__(self):
|
|
return iter(self.keys())
|
|
|
|
def blacklisted(self, item):
|
|
"""Return True if tag is blacklisted.
|
|
|
|
Blacklist automatically includes internal mutagen tags (those
|
|
beginning with a tilde)."""
|
|
for regex in self.blacklist:
|
|
if re.search(regex, item):
|
|
return True
|
|
else:
|
|
return False
|
|
def keys(self):
|
|
return [ key for key in self.data.keys() if not self.blacklisted(key) ]
|
|
def write(self):
|
|
return self.data.save()
|
|
|
|
def copy_tags (src, dest):
|
|
"""Replace tags of dest file with those of src.
|
|
|
|
Excludes format-specific tags and replaygain info, which does not
|
|
carry across formats."""
|
|
|
|
# A list of regexps matching non-transferrable tags, like file format
|
|
# info and replaygain info. This will not be transferred from source,
|
|
# nor deleted from destination.
|
|
blacklist_regexes = [ re.compile(s) for s in (
|
|
'encoded',
|
|
'replaygain',
|
|
) ]
|
|
|
|
try:
|
|
m_src = AudioFile(src, blacklist = blacklist_regexes, easy=True)
|
|
m_dest = AudioFile(dest, blacklist = m_src.blacklist, easy=True)
|
|
m_dest.clear()
|
|
#logging.debug("Adding tags from source file:\n%s",
|
|
# "\n".join("%s: %s" % (k, repr(m_src[k])) for k in sorted(m_src.keys())))
|
|
m_dest.update(m_src)
|
|
#logger.debug("Added tags to dest file:\n%s",
|
|
# "\n".join("%s: %s" % (k, repr(m_dest[k])) for k in sorted(m_dest.keys())))
|
|
m_dest.write()
|
|
except AACError:
|
|
#logger.warn("No tags copied because output format does not support tags: %s", repr(type(m_dest.data)))
|
|
print("WARN: no tags copied because output format does not support tags: {0}".format(repr(type(m_dest.data))))
|