1 /* exif-mnote.c 2 * 3 * Copyright 2002 Lutz M\uffffller <lutz (at) users.sourceforge.net> 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Lesser General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Lesser General Public License for more details. 14 * 15 * You should have received a copy of the GNU Lesser General Public 16 * License along with this library; if not, write to the 17 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301 USA. 19 */ 20 21 #include <config.h> 22 23 #include <stdio.h> 24 #include <stdlib.h> 25 26 #include <libexif/exif-data.h> 27 28 static int 29 test_exif_data (ExifData *d) 30 { 31 unsigned int i, c; 32 char v[1024], *p; 33 ExifMnoteData *md; 34 35 fprintf (stdout, "Byte order: %s\n", 36 exif_byte_order_get_name (exif_data_get_byte_order (d))); 37 38 fprintf (stdout, "Parsing maker note...\n"); 39 md = exif_data_get_mnote_data (d); 40 if (!md) { 41 fprintf (stderr, "Could not parse maker note!\n"); 42 exif_data_unref (d); 43 return 1; 44 } 45 46 fprintf (stdout, "Increasing ref-count...\n"); 47 exif_mnote_data_ref (md); 48 49 fprintf (stdout, "Decreasing ref-count...\n"); 50 exif_mnote_data_unref (md); 51 52 fprintf (stdout, "Counting entries...\n"); 53 c = exif_mnote_data_count (md); 54 fprintf (stdout, "Found %i entries.\n", c); 55 for (i = 0; i < c; i++) { 56 fprintf (stdout, "Dumping entry number %i...\n", i); 57 fprintf (stdout, " Name: '%s'\n", 58 exif_mnote_data_get_name (md, i)); 59 fprintf (stdout, " Title: '%s'\n", 60 exif_mnote_data_get_title (md, i)); 61 fprintf (stdout, " Description: '%s'\n", 62 exif_mnote_data_get_description (md, i)); 63 p = exif_mnote_data_get_value (md, i, v, sizeof (v)); 64 if (p) { fprintf (stdout, " Value: '%s'\n", v); } 65 } 66 67 return 0; 68 } 69 70 int 71 main (int argc, char **argv) 72 { 73 ExifData *d; 74 unsigned int buf_size; 75 unsigned char *buf; 76 int r; 77 78 if (argc <= 1) { 79 fprintf (stderr, "You need to supply a filename!\n"); 80 return 1; 81 } 82 83 fprintf (stdout, "Loading '%s'...\n", argv[1]); 84 d = exif_data_new_from_file (argv[1]); 85 if (!d) { 86 fprintf (stderr, "Could not load data from '%s'!\n", argv[1]); 87 return 1; 88 } 89 fprintf (stdout, "Loaded '%s'.\n", argv[1]); 90 91 fprintf (stdout, "######### Test 1 #########\n"); 92 r = test_exif_data (d); 93 if (r) return r; 94 95 exif_data_save_data (d, &buf, &buf_size); 96 exif_data_unref (d); 97 d = exif_data_new_from_data (buf, buf_size); 98 free (buf); 99 100 fprintf (stdout, "######### Test 2 #########\n"); 101 r = test_exif_data (d); 102 if (r) return r; 103 104 fprintf (stdout, "Test successful!\n"); 105 106 return 1; 107 } 108
