/usr/share/pyshared/h5py/h5z.pyx is in python-h5py 2.0.1-2+b1.
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#
# This file is part of h5py, a low-level Python interface to the HDF5 library.
#
# Copyright (C) 2008 Andrew Collette
# http://h5py.alfven.org
# License: BSD (See LICENSE.txt for full license)
#
# $Date$
#
#-
"""
Filter API and constants.
"""
include "config.pxi"
# === Public constants and data structures ====================================
FILTER_LZF = H5PY_FILTER_LZF
FILTER_ERROR = H5Z_FILTER_ERROR
FILTER_NONE = H5Z_FILTER_NONE
FILTER_ALL = H5Z_FILTER_ALL
FILTER_DEFLATE = H5Z_FILTER_DEFLATE
FILTER_SHUFFLE = H5Z_FILTER_SHUFFLE
FILTER_FLETCHER32 = H5Z_FILTER_FLETCHER32
FILTER_SZIP = H5Z_FILTER_SZIP
FILTER_RESERVED = H5Z_FILTER_RESERVED
FILTER_MAX = H5Z_FILTER_MAX
FLAG_DEFMASK = H5Z_FLAG_DEFMASK
FLAG_MANDATORY = H5Z_FLAG_MANDATORY
FLAG_OPTIONAL = H5Z_FLAG_OPTIONAL
FLAG_INVMASK = H5Z_FLAG_INVMASK
FLAG_REVERSE = H5Z_FLAG_REVERSE
FLAG_SKIP_EDC = H5Z_FLAG_SKIP_EDC
SZIP_ALLOW_K13_OPTION_MASK = H5_SZIP_ALLOW_K13_OPTION_MASK #1
SZIP_CHIP_OPTION_MASK = H5_SZIP_CHIP_OPTION_MASK #2
SZIP_EC_OPTION_MASK = H5_SZIP_EC_OPTION_MASK #4
SZIP_NN_OPTION_MASK = H5_SZIP_NN_OPTION_MASK #32
SZIP_MAX_PIXELS_PER_BLOCK = H5_SZIP_MAX_PIXELS_PER_BLOCK #32
FILTER_CONFIG_ENCODE_ENABLED = H5Z_FILTER_CONFIG_ENCODE_ENABLED
FILTER_CONFIG_DECODE_ENABLED = H5Z_FILTER_CONFIG_DECODE_ENABLED
ERROR_EDC = H5Z_ERROR_EDC
DISABLE_EDC = H5Z_DISABLE_EDC
ENABLE_EDC = H5Z_ENABLE_EDC
NO_EDC = H5Z_NO_EDC
# === Filter API =============================================================
def filter_avail(int filter_code):
"""(INT filter_code) => BOOL
Determine if the given filter is available to the library. The
filter code should be one of:
- FILTER_DEFLATE
- FILTER_SHUFFLE
- FILTER_FLETCHER32
- FILTER_SZIP
"""
return <bint>H5Zfilter_avail(<H5Z_filter_t>filter_code)
def get_filter_info(int filter_code):
"""(INT filter_code) => INT filter_flags
Retrieve a bitfield with information about the given filter. The
filter code should be one of:
- FILTER_DEFLATE
- FILTER_SHUFFLE
- FILTER_FLETCHER32
- FILTER_SZIP
Valid bitmasks for use with the returned bitfield are:
- FILTER_CONFIG_ENCODE_ENABLED
- FILTER_CONFIG_DECODE_ENABLED
"""
cdef unsigned int flags
H5Zget_filter_info(<H5Z_filter_t>filter_code, &flags)
return flags
def _register_lzf():
register_lzf()
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