1 /* exif-mnote.c
2 *
3 * Copyright 2002 Lutz Mueller <lutz@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
test_exif_data(ExifData * d)29 test_exif_data (ExifData *d)
30 {
31 unsigned int i, c;
32 char v[1024], *p;
33 ExifMnoteData *md;
34
35 printf("Byte order: %s\n",
36 exif_byte_order_get_name (exif_data_get_byte_order (d)));
37
38 printf("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 printf("Increasing ref-count...\n");
47 exif_mnote_data_ref (md);
48
49 printf("Decreasing ref-count...\n");
50 exif_mnote_data_unref (md);
51
52 printf("Counting entries...\n");
53 c = exif_mnote_data_count (md);
54 printf("Found %i entries.\n", c);
55 for (i = 0; i < c; i++) {
56 printf("Dumping entry number %i...\n", i);
57 printf(" Name: '%s'\n",
58 exif_mnote_data_get_name (md, i));
59 printf(" Title: '%s'\n",
60 exif_mnote_data_get_title (md, i));
61 printf(" 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) { printf(" Value: '%s'\n", v); }
65 }
66
67 return 0;
68 }
69
70 int
main(int argc,char ** argv)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 printf("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 printf("Loaded '%s'.\n", argv[1]);
90
91 printf("######### 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 if (!d) {
99 fprintf (stderr, "Could not load data from buf!\n");
100 return 1;
101 }
102 free (buf);
103
104 printf ("######### Test 2 #########\n");
105 r = test_exif_data (d);
106 if (r) return r;
107
108 printf ("Test successful!\n");
109
110 return 1;
111 }
112