demos/c_simple/meta_data.c

   1 /*****************************************************************************
   2  * This file is part of gfxprim library.                                     *
   3  *                                                                           *
   4  * Gfxprim is free software; you can redistribute it and/or                  *
   5  * modify it under the terms of the GNU Lesser General Public                *
   6  * License as published by the Free Software Foundation; either              *
   7  * version 2.1 of the License, or (at your option) any later version.        *
   8  *                                                                           *
   9  * Gfxprim is distributed in the hope that it will be useful,                *
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of            *
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
  12  * Lesser General Public License for more details.                           *
  13  *                                                                           *
  14  * You should have received a copy of the GNU Lesser General Public          *
  15  * License along with gfxprim; if not, write to the Free Software            *
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor,                        *
  17  * Boston, MA  02110-1301  USA                                               *
  18  *                                                                           *
  19  * Copyright (C) 2009-2014 Cyril Hrubis <metan@ucw.cz>                       *
  20  *                                                                           *
  21  *****************************************************************************/
  22
  23  /*
  24
  25    Read image meta-data and print them into stdout.
  26
  27   */
  28
  29 #include <stdio.h>
  30 #include <string.h>
  31 #include <errno.h>
  32
  33 #include <GP.h>
  34
  35 #define SEP \
  36 "-----------------------------------------------------------------------------"
  37
  38 int main(int argc, char *argv[])
  39 {
  40         GP_DataStorage *storage;
  41         int i;
  42
  43         if (argc < 2) {
  44                 fprintf(stderr, "Takes an image(s) as parameter(s)\n");
  45                 return 1;
  46         }
  47
  48         storage = GP_DataStorageCreate();
  49
  50         if (!storage) {
  51                 fprintf(stderr, "Failed to create data storage\n");
  52                 return 1;
  53         }
  54
  55         for (i = 1; i < argc; i++) {
  56                 puts(SEP);
  57                 printf("Opening '%s'\n", argv[i]);
  58
  59                 GP_DataStorageClear(storage);
  60
  61                 if (GP_LoadMetaData(argv[i], storage)) {
  62                         fprintf(stderr, "Failed to read '%s' meta-data: %s\n",
  63                                 argv[i], strerror(errno));
  64                 } else {
  65                         GP_DataStoragePrint(storage);
  66                 }
  67         }
  68
  69         puts(SEP);
  70
  71         return 0;
  72 }