/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <stdlib.h>
#include <string.h>
#include "h5tools_utils.h"
#include "h5trav.h"
#include "h5repack.h"
/* module-scoped variables */
const char *progname = "h5repack";
int d_status = EXIT_SUCCESS;
/* local prototypes */
static void usage(void);
static void read_info(const char *filename,pack_opt_t *options);
/*-------------------------------------------------------------------------
* 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);
if (argc<2)
{
usage();
exit(1);
}
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: read_info
*
* Purpose: read comp and chunk options from file
*
* Return: void, exit on error
*
* Programmer: pvn@ncsa.uiuc.edu
*
* Date: September, 22, 2003
*
*-------------------------------------------------------------------------
*/
static
void read_info(const char *filename,
pack_opt_t *options)
{
char stype[10];
char comp_info[1024];
FILE *fp;
char c;
int i, rc=1;
char *srcdir = getenv("srcdir"); /* the source directory */
char data_file[512]=""; /* buffer to hold name of existing file */
/* compose the name of the file to open, using the srcdir, if appropriate */
if (srcdir){
strcpy(data_file,srcdir);
strcat(data_file,"/");
}
strcat(data_file,filename);
if ((fp = fopen(data_file, "r")) == (FILE *)NULL) {
error_msg(progname, "cannot open options file %s\n", filename);
exit(1);
}
/* cycle until end of file reached */
while( 1 )
{
rc=fscanf(fp, "%s", stype);
if (rc==-1)
break;
/*-------------------------------------------------------------------------
* filter
*-------------------------------------------------------------------------
*/
if (strcmp(stype,"-f") == 0) {
/* find begining of info */
i=0; c='0';
while( c!=' ' )
{
fscanf(fp, "%c", &c);
if (feof(fp)) break;
}
c='0';
/* go until end */
while( c!=' ' )
{
fscanf(fp, "%c", &c);
comp_info[i]=c;
i++;
if (feof(fp)) break;
if (c==10 /*eol*/) break;
}
comp_info[i-1]='\0'; /*cut the last " */
if (h5repack_addfilter(comp_info,options)==-1){
error_msg(progname, "could not add compression option\n");
exit(1);
}
}
/*-------------------------------------------------------------------------
* layout
*-------------------------------------------------------------------------
*/
else if (strcmp(stype,"-l") == 0) {
/* find begining of info */
i=0; c='0';
while( c!=' ' )
{
fscanf(fp, "%c", &c);
if (feof(fp)) break;
}
c='0';
/* go until end */
while( c!=' ' )
{
fscanf(fp, "%c", &c);
comp_info[i]=c;
i++;
if (feof(fp)) break;
if (c==10 /*eol*/) break;
}
comp_info[i-1]='\0'; /*cut the last " */
if (h5repack_addlayout(comp_info,options)==-1){
error_msg(progname, "could not add chunck option\n");
exit(1);
}
}
/*-------------------------------------------------------------------------
* not valid
*-------------------------------------------------------------------------
*/
else {
error_msg(progname, "bad file format for %s", filename);
exit(1);
}
}
fclose(fp);
return;
}
/*-------------------------------------------------------------------------
* Function: usage
*
* Purpose: print usage
*
* Return: void
*
*-------------------------------------------------------------------------
*/
static
void usage(void)
{
printf("usage: h5repack -i input -o output [-h] [-v] [-f FILTER] [-l LAYOUT] [-n] [-m size] [-e file]\n");
printf("\n");
printf("-i input Input HDF5 File\n");
printf("-o output Output HDF5 File\n");
printf("[-h] Print this message\n");
printf("[-v] Verbose mode\n");
printf("[-n] Use a native HDF5 type when repacking. Default is the file type\n");
printf("[-m size] Do not apply the filter to objects smaller than size\n");
printf("[-e file] Name of file with the -f and -l options\n");
printf("[-f FILTER] Filter type\n");
printf("[-l LAYOUT] Layout type\n");
printf("\n");
printf("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, meaning apply\n");
printf(" compression only to those objects. If no names are specified, the filter\n");
printf(" 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(" NONE, to remove all filters\n");
printf(" <filter parameters> is optional filter parameter information\n");
printf(" GZIP=<deflation level> from 1-9\n");
printf(" SZIP=<pixels per block,coding> pixels per block is a even number in\n");
printf(" 2-32 and coding method is either EC or NN\n");
printf(" SHUF (no parameter)\n");
printf(" FLET (no parameter)\n");
printf(" NONE (no parameter)\n");
printf("\n");
printf("LAYOUT is a string with the format:\n");
printf("\n");
printf(" <list of objects>:<layout type>=<layout parameters>\n");
printf("\n");
printf(" <list of objects> is a comma separated list of object names, meaning that\n");
printf(" layout information is supplied for those objects. If no names are\n");
printf(" specified, the layout type 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 optional layout information\n");
printf(" CHUNK=DIM[xDIM...xDIM], the chunk size of each dimension\n");
printf(" COMPA (no parameter)\n");
printf(" CONTI (no parameter)\n");
printf("\n");
printf("Examples of use:\n");
printf("\n");
printf("1) h5repack -v -i file1 -o file2 -f GZIP=1\n");
printf("\n");
printf(" GZIP compression with level 1 to all objects\n");
printf("\n");
printf("2) h5repack -v -i file1 -o file2 -f A:SZIP=8,NN\n");
printf("\n");
printf(" SZIP compression with 8 pixels per block and NN coding method to object A\n");
printf("\n");
printf("3) h5repack -v -i file1 -o file2 -l A,B:CHUNK=20x10 -f C,D,F:NONE\n");
printf("\n");
printf(" Chunked layout, with a layout size of 20x10, to objects A and B\n");
printf(" and remove filters to objects C, D, F\n");
printf("\n");
}
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