The trailing "2" follows HDF5's convention for versioned/deprecated
symbols (H5Dopen2, H5Gcreate2, etc.), implying this is a successor to
H5Zget_filter_info registered in H5vers.txt -- it isn't. The two functions
are independent: H5Zget_filter_info returns only encode/decode config
flags, H5Zget_filter_class_info additionally exposes name, description,
and set_config/get_config presence. Renamed across C, Fortran, and both
Java binding variants (JNI + FFM) since it hadn't shipped yet.
Adds a human-readable key=value parameter string API for HDF5 filters,
alongside the existing integer cd_values arrays.
New C API:
- H5Pappend_filter(plist, filter_id, flags, params) — appends a filter
using either a key=value string or raw cd_values (H5Z_params_t)
- H5Pget_filter_params_by_idx(plist, idx, buf, buf_size, content_len) —
retrieves the parameter string for a filter by pipeline index
- H5Zconfig_get_int/double/bool/str — typed accessors for use inside
filter set_config callbacks
- H5Z_filter_id_by_name(name) — look up a filter id by registered name
- H5Zget_filter_info2(id, info) — extended filter info including v3 fields
New H5Z_class3_t fields: name, description, set_config, get_config,
and reserved blob-callback placeholders (write_blob/read_blob/close_blob).
H5Z_pipeline gains dxpl_id, scaled[], and ndims arguments threaded
through from all call sites so v3 filter callbacks have full context.
All six built-in filters (deflate, shuffle, fletcher32, nbit, szip,
scaleoffset) implement set_config/get_config callbacks.
TOML subset parser: tomlc17 (MIT) vendored in src/tomlc17/ and compiled
unconditionally into libhdf5. Hex-float literals are transparently
rewritten to decimal before parsing. tomlc17 symbols are hidden via
-fvisibility=hidden to prevent namespace collisions.
On-disk format: no new pipeline version. Parameter strings are converted
to cd_values by set_config at H5Pappend_filter time and stored using the
existing v2 pipeline message. On read, get_config reconstructs the string.
Full backward read compatibility is preserved.
Fortran, C++, and Java bindings added. Tests in test/tfilter2.c
(~2300 lines) and testpar/t_filters_parallel.c (par-01–par-04).
h5dump displays filter parameter strings; h5repack accepts TOML-form
UD= filter specs.
Code-review fixes included: tomlc17 visibility, H5Pget_filter_params_by_idx
arg validation and true-length two-pass contract, flags re-validation after
set_config, H5Z_register3 runtime plugin validation, Java two-pass protocol
and h5libraryError() consistency, CHANGELOG corrections.
Fixes GitHub issue #6153
This is where most people will expect to find license information. The
COPYING_LBNL_HDF5 file has also been renamed to LICENSE_LBNL_HDF5.
The licenses are unchanged.
* OESS-98 convert plugin option to FetchContent, add tests
* Fixes for pkcfg files because of plugin option
* OESS-98 fix tools test for plugins
* Keep doxygen comments under 100 chars long - format hint
* Whitespace
* HDFFV-11144 - Reclassify CMake messages
* HDFFV-11099/11100 added help text
* Reworked switch statement to compare string instead
* Fix typo
* Update CDash mode
* Correct name of threadsafe
* Correct option name
* Undo accidental commit
* Note LLVM 10 to 11 format default changes
* Update format plugin
* Undo clang-format version 11 changes
* One more correction
* Update supported platforms
* Revert whitespace changes
* Correct whitespace
* Changes from PR#3
* HDFFV-11213 added option to control gcc10 warnings diagnostics
* HDFFV-11212 Use the new references correctly in JNI utility and tests
* format source
* Fix typo
* Add new test file
* HDFFV-11212 - update test and remove unused arg
* Minor non-space formatting changes
* Use H5I_INVALID_ID instead of "-1"
* source formatting
* add missing testfile, update jni function
* Undo commit of debug code
* remove mislocated file
* Fix h5repack test for handling of fapls and id close
* Update h5diff test files usage text
* HDFFV-11212 add new ref tests for JNI export dataset
* src format update
* Remove blank line typo
* src format typo
* long double requires %Lg
* Another long double foramt specifer S.B. %Lg
* issue with t128bit test
* Windows issue with h5dump and type.
* Fix review issues
* refactor function nesting and fix error checks
* format fixes
* Remove untested functions and javadoc quiet comments
* Restore TRY block.
* Change string append errors to memory exception
* revert to H5_JNI_FATAL_ERROR - support functions need work
* Add assertion error for h5util functions
* remove duplicate function
* format fix
* Revert HD function error handling
* Update copyright comments
* GH #386 java folder copyright corrections
* Whitespace
* Modify temporary rpath for testing in java example scripts.
* Update URL in source file Copyright headers for web copy of COPYING
file - files not in src or test.
* commit '54957d37f5aa73912763dbb6e308555e863c43f4':
Commit copyright header change for src/H5PLpkg.c which was added after running script to make changes.
Add new files in release_docs to MANIFEST. Cimmit changes to Makefile.in(s) and H5PL.c that resulted from running autogen.sh.
Merge pull request #407 in HDFFV/hdf5 from ~LRKNOX/hdf5_lrk:hdf5_1_10_1 to hdf5_1_10_1
Change copyright headers to replace url referring to file to be removed and replace it with new url for COPYING file.
M. Scot Breitenfeld
github-actions
Dana Robinson
Allen Byrne
Larry Knox
Allen Byrne
Dana Robinson