H5Zpublic.h File Reference

#include "H5public.h"

Macros
#define	H5Z_FILTER_ERROR   (-1)
#define	H5Z_FILTER_NONE   0
#define	H5Z_FILTER_DEFLATE   1
#define	H5Z_FILTER_SHUFFLE   2
#define	H5Z_FILTER_FLETCHER32   3
#define	H5Z_FILTER_SZIP   4
#define	H5Z_FILTER_NBIT   5
#define	H5Z_FILTER_SCALEOFFSET   6
#define	H5Z_FILTER_RESERVED   256
#define	H5Z_FILTER_MAX   65535
#define	H5Z_FILTER_ALL   0
#define	H5Z_MAX_NFILTERS   32
#define	H5Z_FLAG_DEFMASK   0x00ff
#define	H5Z_FLAG_MANDATORY   0x0000
#define	H5Z_FLAG_OPTIONAL   0x0001
#define	H5Z_FLAG_INVMASK   0xff00
#define	H5Z_FLAG_REVERSE   0x0100
#define	H5Z_FLAG_SKIP_EDC   0x0200
#define	H5_SZIP_ALLOW_K13_OPTION_MASK   1
#define	H5_SZIP_CHIP_OPTION_MASK   2
#define	H5_SZIP_EC_OPTION_MASK   4
#define	H5_SZIP_NN_OPTION_MASK   32
#define	H5_SZIP_MAX_PIXELS_PER_BLOCK   32
#define	H5Z_SHUFFLE_USER_NPARMS   0
#define	H5Z_SHUFFLE_TOTAL_NPARMS   1
#define	H5Z_SZIP_USER_NPARMS   2
#define	H5Z_SZIP_TOTAL_NPARMS   4
#define	H5Z_SZIP_PARM_MASK   0
#define	H5Z_SZIP_PARM_PPB   1
#define	H5Z_SZIP_PARM_BPP   2
#define	H5Z_SZIP_PARM_PPS   3
#define	H5Z_NBIT_USER_NPARMS   0 /* Number of parameters that users can set */
#define	H5Z_SCALEOFFSET_USER_NPARMS   2
#define	H5Z_SO_INT_MINBITS_DEFAULT   0
#define	H5Z_FILTER_CONFIG_ENCODE_ENABLED   (0x0001)
#define	H5Z_FILTER_CONFIG_DECODE_ENABLED   (0x0002)

Typedefs
typedef int	H5Z_filter_t
	Filter identifiers.
typedef H5Z_cb_return_t(*	H5Z_filter_func_t) (H5Z_filter_t filter, void *buf, size_t buf_size, void *op_data)

Enumerations
enum	H5Z_SO_scale_type_t { H5Z_SO_FLOAT_DSCALE = 0 , H5Z_SO_FLOAT_ESCALE = 1 , H5Z_SO_INT = 2 }
enum	H5Z_EDC_t { H5Z_ERROR_EDC = -1 , H5Z_DISABLE_EDC = 0 , H5Z_ENABLE_EDC = 1 , H5Z_NO_EDC = 2 }
enum	H5Z_cb_return_t { H5Z_CB_ERROR = -1 , H5Z_CB_FAIL = 0 , H5Z_CB_CONT = 1 , H5Z_CB_NO = 2 }

Functions
htri_t	H5Zfilter_avail (H5Z_filter_t id)
	Determines whether a filter is available.
herr_t	H5Zget_filter_info (H5Z_filter_t filter, unsigned int *filter_config_flags)
	Retrieves information about a filter.

Macro Definition Documentation

H5Z_FILTER_ALL

#define H5Z_FILTER_ALL   0

Symbol to remove all filters in H5Premove_filter()

H5Z_FILTER_CONFIG_DECODE_ENABLED

#define H5Z_FILTER_CONFIG_DECODE_ENABLED   (0x0002)

H5Z_FILTER_CONFIG_ENCODE_ENABLED

#define H5Z_FILTER_CONFIG_ENCODE_ENABLED   (0x0001)

H5Z_FILTER_DEFLATE

#define H5Z_FILTER_DEFLATE   1

deflation like gzip

H5Z_FILTER_ERROR

#define H5Z_FILTER_ERROR   (-1)

no filter

H5Z_FILTER_FLETCHER32

#define H5Z_FILTER_FLETCHER32   3

fletcher32 checksum of EDC

H5Z_FILTER_MAX

#define H5Z_FILTER_MAX   65535

maximum filter id

H5Z_FILTER_NBIT

#define H5Z_FILTER_NBIT   5

nbit compression

H5Z_FILTER_NONE

#define H5Z_FILTER_NONE   0

reserved indefinitely

H5Z_FILTER_RESERVED

#define H5Z_FILTER_RESERVED   256

filter ids below this value are reserved for library use

H5Z_FILTER_SCALEOFFSET

#define H5Z_FILTER_SCALEOFFSET   6

scale+offset compression

H5Z_FILTER_SHUFFLE

#define H5Z_FILTER_SHUFFLE   2

shuffle the data

H5Z_FILTER_SZIP

#define H5Z_FILTER_SZIP   4

szip compression

H5Z_FLAG_DEFMASK

#define H5Z_FLAG_DEFMASK   0x00ff

definition flag mask

H5Z_FLAG_INVMASK

#define H5Z_FLAG_INVMASK   0xff00

invocation flag mask

H5Z_FLAG_MANDATORY

#define H5Z_FLAG_MANDATORY   0x0000

filter is mandatory

H5Z_FLAG_OPTIONAL

#define H5Z_FLAG_OPTIONAL   0x0001

filter is optional

H5Z_FLAG_REVERSE

#define H5Z_FLAG_REVERSE   0x0100

reverse direction; read

H5Z_FLAG_SKIP_EDC

#define H5Z_FLAG_SKIP_EDC   0x0200

skip EDC filters for read

H5Z_MAX_NFILTERS

#define H5Z_MAX_NFILTERS   32

Maximum number of filters allowed in a pipeline

H5Z_NBIT_USER_NPARMS

#define H5Z_NBIT_USER_NPARMS   0 /* Number of parameters that users can set */

Number of parameters that users can set for the N-bit filter

Typedef Documentation

H5Z_filter_func_t

typedef H5Z_cb_return_t(* H5Z_filter_func_t) (H5Z_filter_t filter, void *buf, size_t buf_size, void *op_data)

Filter callback function definition

H5Z_filter_t

typedef int H5Z_filter_t

Filter identifiers.

Values 0 through 255 are for filters defined by the HDF5 library. Values 256 through 511 are available for testing new filters. Subsequent values should be obtained from the HDF5 development team at help@.nosp@m.hdfg.nosp@m.roup..nosp@m.org. These values will never change because they appear in the HDF5 files.

Enumeration Type Documentation

H5Z_cb_return_t

enum H5Z_cb_return_t

Return values for filter callback function

Enumerator
H5Z_CB_ERROR	error value
H5Z_CB_FAIL	I/O should fail if filter fails.
H5Z_CB_CONT	I/O continues if filter fails.
H5Z_CB_NO	sentinel