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