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'''
Care about audio fileformat
'''
try:
from mutagen.flac import FLAC
from mutagen.apev2 import APEv2File
from mutagen.oggvorbis import OggVorbis
except ImportError:
pass
import parser
import shutil
class MpegAudioStripper(parser.GenericParser):
'''
Represent mpeg audio file (mp3, ...)
'''
def _should_remove(self, field):
if field.name in ("id3v1", "id3v2"):
return True
else:
return False
class OggStripper(parser.GenericParser):
'''
Represent an ogg vorbis file
'''
def remove_all(self):
if self.backup is True:
shutil.copy2(self.filename, self.output)
self.filename = self.output
mfile = OggVorbis(self.filename)
mfile.delete()
mfile.save()
def is_clean(self):
'''
Check if the "metadata" block is present in the file
'''
mfile = OggVorbis(self.filename)
if mfile.tags == []:
return True
else:
return False
def get_meta(self):
'''
Return the content of the metadata block if present
'''
metadata = {}
mfile = OggVorbis(self.filename)
[metadata[key] = value for key, value in mfile.tags]
return metadata
class Apev2Stripper(parser.GenericParser):
'''
Represent a Apev2 audio file
'''
def remove_all(self):
'''
Remove the "metadata" block from the file
'''
if self.backup is True:
shutil.copy2(self.filename, self.output)
self.filename = self.output
mfile = APEv2File(self.filename)
mfile.delete()
mfile.save()
def is_clean(self):
'''
Check if the "metadata" block is present in the file
'''
mfile = APEv2File(self.filename)
if mfile.tags is None:
return True
else:
return False
def get_meta(self):
'''
Return the content of the metadata block if present
'''
metadata = {}
mfile = APEv2File(self.filename)
if mfile.tags is not None:
[metadata[key] = value for key, value in mfile.tags]
return metadata
class FlacStripper(parser.GenericParser):
'''
Represent a Flac audio file
'''
def remove_all(self):
'''
Remove the "metadata" block from the file
'''
if self.backup is True:
shutil.copy2(self.filename, self.output)
self.filename = self.output
mfile = FLAC(self.filename)
mfile.delete()
mfile.clear_pictures()
mfile.save()
def is_clean(self):
'''
Check if the "metadata" block is present in the file
'''
mfile = FLAC(self.filename)
if mfile.tags is None and mfile.pictures == []:
return True
else:
return False
def get_meta(self):
'''
Return the content of the metadata block if present
'''
metadata = {}
mfile = FLAC(self.filename)
if mfile.tags is not None:
[metadata[key] = value for key, value in mfile.tags]
if mfile.pictures != []:
metadata['picture :'] = 'yes'
return metadata
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