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idiotic.py
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idiotic.py
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from mutagen import id3 as mutid3
class Id3(object):
"""Wraps mutagen's id3 class as a simple dictionary, which is stored as the
'tags' attribute. This mimics the behavior of mutagen's flac, ogg…
classes."""
def __init__(self, filepath, lang=None, encoding=None):
super().__init__()
self.lang = lang or 'eng'
self.encoding = encoding or 3
self.mut = mutid3.ID3FileType(filepath)
self.text_frames = {
mutid3.TALB: 'album',
mutid3.TBPM: 'bpm',
mutid3.TCOM: 'composer',
mutid3.TCOP: 'copyright',
mutid3.TDAT: 'date',
mutid3.TDLY: 'audiodelay',
mutid3.TENC: 'encodedby',
mutid3.TEXT: 'lyricist',
mutid3.TFLT: 'filetype',
mutid3.TIME: 'time',
mutid3.TIT1: 'grouping',
mutid3.TIT2: 'title',
mutid3.TIT3: 'version',
mutid3.TKEY: 'initialkey',
mutid3.TLAN: 'language',
mutid3.TLEN: 'audiolength',
mutid3.TMED: 'mediatype',
mutid3.TMOO: 'mood',
mutid3.TOAL: 'originalalbum',
mutid3.TOFN: 'filename',
mutid3.TOLY: 'author',
mutid3.TOPE: 'originalartist',
mutid3.TORY: 'originalyear',
mutid3.TOWN: 'fileowner',
mutid3.TPE1: 'artist',
mutid3.TPE2: 'albumartist',
mutid3.TPE3: 'conductor',
mutid3.TPE4: 'arranger',
mutid3.TPOS: 'discnumber',
mutid3.TPRO: 'producednotice',
mutid3.TPUB: 'organization',
mutid3.TRCK: 'track',
mutid3.TRDA: 'recordingdates',
mutid3.TRSN: 'radiostationname',
mutid3.TRSO: 'radioowner',
mutid3.TSIZ: 'audiosize',
mutid3.TSOA: 'albumsortorder',
mutid3.TSOP: 'performersortorder',
mutid3.TSOT: 'titlesortorder',
mutid3.TSRC: 'isrc',
mutid3.TSSE: 'encodingsettings',
mutid3.TSST: 'setsubtitle',
mutid3.TYER: 'year'}
self.time_frames = {
mutid3.TDEN: 'encodingtime',
mutid3.TDOR: 'originalreleasetime',
mutid3.TDRC: 'year',
mutid3.TDRL: 'releasetime',
mutid3.TDTG: 'taggingtime'}
self.url_frames = {
mutid3.WCOP: 'wwwcopyright',
mutid3.WOAF: 'wwwfileinfo',
mutid3.WOAS: 'wwwsource',
mutid3.WORS: 'wwwradio',
mutid3.WPAY: 'wwwpayment',
mutid3.WPUB: 'wwwpublisher'}
self.tags = self._get_tag_dictionary(self.mut)
def _get_tag_dictionary(self, mut):
tag_dict = {}
for frame in mut.tags.values():
# try for text frames
try:
self._populate_text_tags(mut, tag_dict, frame)
continue
except KeyError:
pass
# try for time frames
try:
self._populate_time_tags(mut, tag_dict, frame)
continue
except KeyError:
pass
# try for url frames
try:
self._populate_url_tags(mut, tag_dict, frame)
continue
except KeyError:
pass
# try for genre frame
try:
self._populate_genre_tag(tag_dict, frame)
except AssertionError:
pass
# try for playcount frame
try:
self._populate_playcount_tag(tag_dict, frame)
except AssertionError:
pass
# try for popularimeter frame
try:
self._populate_popularimeter_tag(tag_dict, frame)
except AssertionError:
pass
self._populate_comment_tag(mut, tag_dict)
self._populate_arbitrary_tags(mut, tag_dict, 'TXXX', 'text')
self._populate_arbitrary_tags(mut, tag_dict, 'WXXX', 'url')
return tag_dict
# TODO: process uslt, ufid, rva2, uurl_frames (cf. puddle_id3.py)
# don't forget about __ tags when converting back to mutagen
def _populate_text_tags(self, mut, tag_dict, frame):
plain_tag = self.text_frames[type(frame)]
tag_dict[plain_tag] = ' ;; '.join(frame.text)
def _populate_time_tags(self, mut, tag_dict, frame):
plain_tag = self.time_frames[type(frame)]
tag_content_list = [time.text for time in frame.text]
tag_content = ' ;; '.join(tag_content_list)
tag_dict[plain_tag] = tag_content
def _populate_url_tags(self, mut, tag_dict, frame):
plain_tag = self.url_frames[type(frame)]
tag_dict[plain_tag] = frame.url
def _populate_genre_tag(self, tag_dict, frame):
# pseudo-"if" for unified EAFP-approach
assert type(frame) is mutid3.TCON
tag_dict['genre'] = ' ;; '.join(frame.genres)
def _populate_playcount_tag(self, tag_dict, frame):
assert type(frame) is mutid3.PCNT
tag_dict['playcount'] = frame.count
def _populate_popularimeter_tag(self, tag_dict, frame):
assert type(frame) is mutid3.POPM
try:
tag_dict['popularimeter'] = frame.count
except AttributeError:
pass
def _populate_comment_tag(self, mut, tag_dict):
for frame in mut.tags.getall('COMM'):
if frame.desc == '':
tag_dict['comment'] = ' ;; '.join(frame.text)
else:
tag_name = 'comment' + '__' + frame.desc
tag_dict[tag_name] = ' ;; '.join(frame.text)
def _populate_arbitrary_tags(self, mut, tag_dict,
base_frame, content_field):
"""Add non-standardized tags to $tag_dict."""
for frame in mut.tags.getall(base_frame):
if frame.desc not in tag_dict.keys():
content_list = getattr(frame, content_field)
tag_dict[frame.desc] = ' ;; '.join(content_list)
else:
tag_name = frame.FrameID + '__' + frame.desc
tag_dict[tag_name] = ' ;; '.join(frame.text)