LZMA¶
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class
numcodecs.lzma.
LZMA
(format=1, check=-1, preset=None, filters=None)[source]¶ Codec providing compression using lzma via the Python standard library.
Parameters: - format : integer, optional
One of the lzma format codes, e.g.,
lzma.FORMAT_XZ
.- check : integer, optional
One of the lzma check codes, e.g.,
lzma.CHECK_NONE
.- preset : integer, optional
An integer between 0 and 9 inclusive, specifying the compression level.
- filters : list, optional
A list of dictionaries specifying compression filters. If filters are provided, ‘preset’ must be None.
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codec_id
= 'lzma'¶
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encode
(buf)[source]¶ Encode data in buf.
Parameters: - buf : buffer-like
Data to be encoded. May be any object supporting the new-style buffer protocol.
Returns: - enc : buffer-like
Encoded data. May be any object supporting the new-style buffer protocol.
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decode
(buf, out=None)[source]¶ Decode data in buf.
Parameters: - buf : buffer-like
Encoded data. May be any object supporting the new-style buffer protocol.
- out : buffer-like, optional
Writeable buffer to store decoded data. N.B. if provided, this buffer must be exactly the right size to store the decoded data.
Returns: - dec : buffer-like
Decoded data. May be any object supporting the new-style buffer protocol.
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get_config
()¶ Return a dictionary holding configuration parameters for this codec. Must include an ‘id’ field with the codec identifier. All values must be compatible with JSON encoding.
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classmethod
from_config
(config)¶ Instantiate codec from a configuration object.