H5Pget_filter2
(
hid_t plist_id
,
unsigned idx
,
unsigned int *flags
,
size_t *cd_nelmts
,
unsigned cd_values[]
,
size_t namelen
,
char name[]
,
unsigned *filter_config
)
H5Pget_filter2
returns information about a
filter, specified by its filter number, in a filter pipeline,
specified by the property list with which it is associated.
plist_id
must be a dataset or group creation property list.
idx
is a value between zero and
N-1, as described in
H5Pget_nfilters
.
The function will return a negative value if the filter number
is out of range.
The structure of the flags
argument is discussed
in H5Pset_filter
.
On input, cd_nelmts
indicates the number of entries
in the cd_values
array, as allocated by the caller;
on return,cd_nelmts
contains the number of values
defined by the filter.
If name
is a pointer to an array of at least
namelen
bytes, the filter name will be copied
into that array. The name will be null terminated if
namelen
is large enough. The filter name returned
will be the name appearing in the file, the name registered
for the filter, or an empty string.
filter_config
is the bit field described in
H5Zget_filter_info
.
hid_t plist_id |
IN: Dataset or group creation property list identifier. |
int idx |
IN: Sequence number within the filter pipeline of the filter for which information is sought. |
unsigned int *flags |
OUT: Bit vector specifying certain general properties of the filter. |
size_t *cd_nelmts |
IN/OUT: Number of elements in
cd_values . |
unsigned int *cd_values |
OUT: Auxiliary data for the filter. |
size_t namelen |
IN: Anticipated number of characters in
name . |
char name[] |
OUT: Name of the filter. |
unsigned int *filter_config |
OUT: Bit field, as described in
H5Zget_filter_info . |
H5Z_FILTER_DEFLATE
| Data compression filter, employing the gzip algorithm |
H5Z_FILTER_SHUFFLE
| Data shuffling filter |
H5Z_FILTER_FLETCHER32
| Error detection filter, employing the Fletcher32 checksum algorithm |
H5Z_FILTER_SZIP
| Data compression filter, employing the SZIP algorithm |
H5Z_FILTER_NBIT
| Data compression filter, employing the N-bit algorithm |
H5Z_FILTER_SCALEOFFSET
| Data compression filter, employing the scale-offset algorithm |
Release | Change |
1.8.0 | Function introduced in this release. |
1.8.5 | Function extended to work with group creation property lists. |