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Mutagen does not add empty tags

Browse source 
See for example
https://github.com/nex3/mutagen/blob/master/mutagen/mp4.py#L521
https://github.com/nex3/mutagen/blob/master/mutagen/asf.py#L52
This commit is contained in:
Thomas Scholtes 2014-02-05 00:54:48 +01:00
parent 95bff36154
commit 694cce380b
1 changed files with 4 additions and 23 deletions
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27
beets/mediafile.py
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@ -300,17 +300,10 @@ class StorageStyle(object):
def fetch(self, mediafile):
"""Retrieve the first raw value of this tag from the mediafile."""
try:
entry = mediafile.mgfile[self.key]
return mediafile.mgfile[self.key][0]
except KeyError:
return None
try:
return entry[0]
except:
log.error('Mutagen exception when reading field: %s' %
traceback.format_exc)
return None
def get(self, mediafile):
"""Retrieve the unpacked value of this field from the mediafile."""
data = self.fetch(mediafile)
@ -445,13 +438,8 @@ class MP4StorageStyle(StorageStyle):
# Possibly index the list.
if self.as_type == bool:
return entry
try:
else:
return entry[0]
except:
log.error('Mutagen exception when reading field: %s' %
traceback.format_exc)
return None
def store(self, mediafile, value):
if self.as_type != bool:
@ -480,15 +468,9 @@ class MP3StorageStyle(StorageStyle):
def fetch(self, mediafile):
try:
frame = mediafile.mgfile[self.key]
return mediafile.mgfile[self.key].text[0]
except KeyError:
return None
try:
return frame.text[0]
except:
log.error('Mutagen exception when reading field: %s' %
traceback.format_exc)
return None
def store(self, mediafile, value):
frame = mutagen.id3.Frames[self.key](encoding=3, text=[value])
@ -543,10 +525,9 @@ class MP3UFIDStorageStyle(MP3StorageStyle):
def fetch(self, mediafile):
try:
frame = mediafile.mgfile[self.key]
return mediafile.mgfile[self.key].data
except KeyError:
return None
return frame.data
def store(self, mediafile, value):
frames = mediafile.mgfile.tags.getall(self.key)