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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <stdlib.h>
#include <string.h>
#include "h5tools_utils.h"
#include "h5repack.h"
/* module-scoped variables */
const char *progname = "h5repack";
int d_status = EXIT_SUCCESS;
static void usage(void);
/*-------------------------------------------------------------------------
* Function: main
*
* Purpose: h5repack main program
*
* Return: 1, error, 0, no error
*
* Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
*
* Date: May 9, 2003
*
* Comments:
*
* Modifications:
* July 2004: Introduced the extra EC or NN option for SZIP
* October 2006: Added a new switch -n, that allows to write the dataset
* using a native type. The default to write is the file type.
*
*-------------------------------------------------------------------------
*/
int main(int argc, char **argv)
{
char *infile = NULL;
char *outfile = NULL;
pack_opt_t options; /*the global options */
int i, ret;
/* initialize options */
h5repack_init (&options,0);
for ( i = 1; i < argc; i++)
{
if (strcmp(argv[i], "-h") == 0) {
usage();
exit(0);
}
if (strcmp(argv[i], "-i") == 0) {
infile = argv[++i];
}
else if (strcmp(argv[i], "-o") == 0) {
outfile = argv[++i];
}
else if (strcmp(argv[i], "-v") == 0) {
options.verbose = 1;
}
else if (strcmp(argv[i], "-f") == 0) {
/* add the -f filter option */
if (h5repack_addfilter(argv[i+1],&options)<0)
{
error_msg(progname, "in parsing filter\n");
exit(1);
}
/* jump to next */
++i;
}
else if (strcmp(argv[i], "-l") == 0) {
/* parse the -l layout option */
if (h5repack_addlayout(argv[i+1],&options)<0)
{
error_msg(progname, "in parsing layout\n");
exit(1);
}
/* jump to next */
++i;
}
else if (strcmp(argv[i], "-m") == 0) {
options.threshold = parse_number(argv[i+1]);
if ((int)options.threshold==-1) {
error_msg(progname, "invalid treshold size <%s>\n",argv[i+1]);
exit(1);
}
++i;
}
else if (strcmp(argv[i], "-e") == 0) {
read_info(argv[++i],&options);
}
else if (strcmp(argv[i], "-n") == 0) {
options.use_native = 1;
}
else if (argv[i][0] == '-') {
error_msg(progname, " - is not a valid argument\n");
usage();
exit(1);
}
}
if (infile == NULL || outfile == NULL)
{
error_msg(progname, "file names missing\n");
usage();
exit(1);
}
/* pack it */
ret=h5repack(infile,outfile,&options);
/* free tables */
h5repack_end(&options);
if (ret==-1)
return 1;
else
return 0;
}
/*-------------------------------------------------------------------------
* Function: usage
*
* Purpose: print usage
*
* Return: void
*
*-------------------------------------------------------------------------
*/
static
void usage(void)
{
printf("h5repack -i input -o output [-h] [-v] [-f 'filter'] [-l 'layout'][-m number][-e file] \n");
printf("\n");
printf("-i input Input HDF5 File\n");
printf("-o output Output HDF5 File\n");
printf("[-h] Print usage message\n");
printf("[-v] Verbose mode. Print more output (list of objects,\n");
printf(" filters, warnings)\n");
printf("[-f 'filter'] Filter type: 'filter' is a string with the format\n");
printf("\n");
printf(" <list of objects> : <name of filter> = <filter parameters>\n");
printf("\n");
printf(" <list of objects> is a comma separated list of object names\n");
printf(" meaning apply compression only to those objects.\n");
printf(" if no object names are specified, the filter is applied to all objects\n");
printf(" <name of filter> can be:\n");
printf(" GZIP, to apply the HDF5 GZIP filter (GZIP compression)\n");
printf(" SZIP, to apply the HDF5 SZIP filter (SZIP compression)\n");
printf(" SHUF, to apply the HDF5 shuffle filter\n");
printf(" FLET, to apply the HDF5 checksum filter\n");
printf(" NBIT, to apply the HDF5 NBIT filter (NBIT compression)\n");
printf(" SOFF, to apply the HDF5 Scale/Offset filter\n");
printf(" NONE, to remove the filter\n");
printf(" <filter parameters> is optional compression info\n");
printf(" SHUF (no parameter)\n");
printf(" FLET (no parameter)\n");
printf(" NBIT (no parameter)\n");
printf(" GZIP=<deflation level> from 1-9\n");
printf(" SZIP=<pixels per block,coding>\n");
printf(" (pixels per block is a even number in 2-32 and coding method\n");
printf(" is 'EC' or 'NN')\n");
printf(" SOFF=<scale_factor,scale_type>\n");
printf(" (scale_factor is an integer and scale_type is either 'IN'\n");
printf(" for integer type, or 'DS', for floating point type\n");
printf(" using the D-scaling method)\n");
printf("[-l 'layout'] Layout type. 'layout' is a string with the format\n");
printf("\n");
printf(" <list of objects> : <layout type>\n");
printf("\n");
printf(" <list of objects> is a comma separated list of object names,\n");
printf(" meaning that layout information is supplied for those objects.\n");
printf(" if no object names are specified, the layout is applied to all objects\n");
printf(" <layout type> can be:\n");
printf(" CHUNK, to apply chunking layout\n");
printf(" COMPA, to apply compact layout\n");
printf(" CONTI, to apply continuous layout\n");
printf(" <layout parameters> is present for the chunk case only\n");
printf(" it is the chunk size of each dimension:\n");
printf(" <dim_1 x dim_2 x ... dim_n>\n");
printf("\n");
printf("-e file File with the -f and -l options (only filter and layout flags)\n");
printf("-n Use a native type when repacking. Default is the file type\n");
printf("-m size Do not apply the filter to objects which size in bytes\n");
printf(" is smaller than number. If no size is specified a minimum of\n");
printf(" 1024 bytes is assumed.\n");
printf("\n");
printf("Examples of use:\n");
printf("\n");
printf("1) h5repack -i file1 -o file2 -f GZIP=1 -v\n");
printf("\n");
printf(" Applies GZIP compression to all objects in file1 and saves the output in file2\n");
printf("\n");
printf("2) h5repack -i file1 -o file2 -f dset1:SZIP=8,NN -v\n");
printf("\n");
printf(" Applies SZIP compression only to object 'dset1'\n");
printf("\n");
printf("3) h5repack -i file1 -o file2 -l dset1,dset2:CHUNK=20x10 -v\n");
printf("\n");
printf(" Applies chunked layout to objects 'dset1' and 'dset2'\n");
printf("\n");
}
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