mirror of
https://github.com/HDFGroup/hdf5.git
synced 2024-11-27 02:10:55 +08:00
dca5ad5754
new features Description: added support for the scale/offset filter there is a new filter symbol 'SOFF' -f SOFF=<scale_factor,scale_type> scale_factor = integer scale_type = 'IN' or 'DS' Solution: Platforms tested: Linux SunOS Misc. update:
204 lines
6.8 KiB
C
204 lines
6.8 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the files COPYING and Copyright.html. COPYING can be found at the root *
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* of the source code distribution tree; Copyright.html can be found at the *
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* root level of an installed copy of the electronic HDF5 document set and *
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* is linked from the top-level documents page. It can also be found at *
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* http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
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* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#include <stdlib.h>
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#include "h5repack.h"
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static void usage(void);
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/*-------------------------------------------------------------------------
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* Function: main
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*
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* Purpose: h5repack main program
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*
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* Return: 1, error, 0, no error
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*
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* Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
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*
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* Date: May 9, 2003
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*
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* Comments:
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*
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* Modifications: July 2004
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* Introduced the extra EC or NN option for SZIP
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*
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*-------------------------------------------------------------------------
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*/
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int main(int argc, char **argv)
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{
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char *infile = NULL;
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char *outfile = NULL;
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pack_opt_t options; /*the global options */
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int i, ret;
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/* initialize options */
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h5repack_init (&options,0);
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for ( i = 1; i < argc; i++)
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{
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if (strcmp(argv[i], "-h") == 0) {
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usage();
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exit(0);
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}
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if (strcmp(argv[i], "-i") == 0) {
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infile = argv[++i];
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}
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else if (strcmp(argv[i], "-o") == 0) {
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outfile = argv[++i];
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}
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else if (strcmp(argv[i], "-v") == 0) {
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options.verbose = 1;
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}
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else if (strcmp(argv[i], "-f") == 0) {
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/* add the -f filter option */
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if (h5repack_addfilter(argv[i+1],&options)<0)
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exit(1);
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/* jump to next */
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++i;
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}
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else if (strcmp(argv[i], "-l") == 0) {
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/* parse the -l layout option */
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if (h5repack_addlayout(argv[i+1],&options)<0)
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exit(1);
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/* jump to next */
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++i;
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}
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else if (strcmp(argv[i], "-m") == 0) {
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options.threshold = parse_number(argv[i+1]);
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if ((int)options.threshold==-1) {
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printf("Error: Invalid treshold size <%s>\n",argv[i+1]);
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exit(1);
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}
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++i;
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}
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else if (strcmp(argv[i], "-e") == 0) {
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read_info(argv[++i],&options);
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}
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else if (argv[i][0] == '-') {
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usage();
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exit(1);
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}
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}
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if (infile == NULL || outfile == NULL)
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{
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usage();
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exit(1);
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}
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/* pack it */
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ret=h5repack(infile,outfile,&options);
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/* free tables */
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h5repack_end(&options);
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if (ret==-1)
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return 1;
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else
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return 0;
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}
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/*-------------------------------------------------------------------------
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* Function: usage
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*
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* Purpose: print usage
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*
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* Return: void
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*
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*-------------------------------------------------------------------------
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*/
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static
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void usage(void)
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{
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printf("h5repack -i input -o output [-h] [-v] [-f 'filter'] [-l 'layout'][-m number][-e file] \n");
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printf("\n");
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printf("-i input Input HDF5 File\n");
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printf("-o output Output HDF5 File\n");
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printf("[-h] Print usage message\n");
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printf("[-v] Verbose mode. Print more output (list of objects,\n");
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printf(" filters, warnings)\n");
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printf("[-f 'filter'] Filter type: 'filter' is a string with the format\n");
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printf("\n");
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printf(" <list of objects> : <name of filter> = <filter parameters>\n");
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printf("\n");
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printf(" <list of objects> is a comma separated list of object names\n");
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printf(" meaning apply compression only to those objects.\n");
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printf(" if no object names are specified, the filter is applied to all objects\n");
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printf(" <name of filter> can be:\n");
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printf(" GZIP, to apply the HDF5 GZIP filter (GZIP compression)\n");
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printf(" SZIP, to apply the HDF5 SZIP filter (SZIP compression)\n");
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printf(" SHUF, to apply the HDF5 shuffle filter\n");
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printf(" FLET, to apply the HDF5 checksum filter\n");
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printf(" NBIT, to apply the HDF5 NBIT filter (NBIT compression)\n");
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printf(" SOFF, to apply the HDF5 Scale/Offset filter\n");
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printf(" NONE, to remove the filter\n");
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printf(" <filter parameters> is optional compression info\n");
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printf(" SHUF (no parameter)\n");
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printf(" FLET (no parameter)\n");
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printf(" NBIT (no parameter)\n");
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printf(" GZIP=<deflation level> from 1-9\n");
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printf(" SZIP=<pixels per block,coding>\n");
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printf(" (pixels per block is a even number in 2-32 and coding method\n");
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printf(" is 'EC' or 'NN')\n");
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printf(" SOFF=<scale_factor,scale_type>\n");
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printf(" (scale_factor is an integer and scale_type is either 'IN'\n");
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printf(" for integer type, or 'DS', for floating point type\n");
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printf(" using the D-scaling method)\n");
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printf("[-l 'layout'] Layout type. 'layout' is a string with the format\n");
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printf("\n");
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printf(" <list of objects> : <layout type>\n");
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printf("\n");
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printf(" <list of objects> is a comma separated list of object names,\n");
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printf(" meaning that layout information is supplied for those objects.\n");
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printf(" if no object names are specified, the layout is applied to all objects\n");
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printf(" <layout type> can be:\n");
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printf(" CHUNK, to apply chunking layout\n");
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printf(" COMPA, to apply compact layout\n");
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printf(" CONTI, to apply continuous layout\n");
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printf(" <layout parameters> is present for the chunk case only\n");
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printf(" it is the chunk size of each dimension:\n");
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printf(" <dim_1 x dim_2 x ... dim_n>\n");
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printf("\n");
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printf("-e file File with the -f and -l options (only filter and layout flags)\n");
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printf("-m size Do not apply the filter to objects which size in bytes\n");
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printf(" is smaller than number. If no size is specified a minimum of\n");
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printf(" 1024 bytes is assumed.\n");
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printf("\n");
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printf("Examples of use:\n");
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printf("\n");
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printf("1) h5repack -i file1 -o file2 -f GZIP=1 -v\n");
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printf("\n");
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printf(" Applies GZIP compression to all objects in file1 and saves the output in file2\n");
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printf("\n");
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printf("2) h5repack -i file1 -o file2 -f dset1:SZIP=8,NN -v\n");
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printf("\n");
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printf(" Applies SZIP compression only to object 'dset1'\n");
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printf("\n");
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printf("3) h5repack -i file1 -o file2 -l dset1,dset2:CHUNK=20x10 -v\n");
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printf("\n");
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printf(" Applies chunked layout to objects 'dset1' and 'dset2'\n");
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printf("\n");
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}
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