def delete_tag(filename):
with fileutil.opened(filename, "rb+") as file:
try:
(cls, offset, length) = detect_tag(file)
fileutil.replace_chunk(file, offset, length, bytes())
except NoTagError:
pass
def delete(cls, filename, offset=None):
"""Delete ID3v1 tag from a file (if present)."""
with fileutil.opened(filename, "rb+") as file:
if offset is None:
file.seek(-128, 2)
else:
file.seek(offset)
offset = file.tell()
data = file.read(128)
if data[:3] == b"TAG":
fileutil.replace_chunk(file, offset, 128, b"", in_place=True)
def delete(cls, filename, offset=None):
"""Delete ID3v1 tag from a file (if present)."""
with fileutil.opened(filename, "rb+") as file:
if offset is None:
file.seek(-128, 2)
else:
file.seek(offset)
offset = file.tell()
data = file.read(128)
if data[:3] == b"TAG":
fileutil.replace_chunk(file, offset, 128, b"", in_place=True)
def write(self, filename=None):
if not filename:
filename = self._filename
if not filename:
raise TypeError("invalid file: {0}".format(filename))
with fileutil.opened(filename, "rb+") as file:
try:
(offset, length) = detect_tag(file)[1:3]
except NoTagError:
(offset, length) = (0, 0)
if offset > 0:
delete_tag(file)
(offset, length) = (0, 0)
tag_data = self.encode(size_hint=length)
fileutil.replace_chunk(file, offset, length, tag_data)
