1 /* test-mem.c
2 *
3 * Copyright (c) 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 <libexif/exif-data.h>
24 #include <libexif/exif-ifd.h>
25 #include <libexif/exif-loader.h>
26
27 #include <stdio.h>
28 #include <stdlib.h>
29
30 int
main()31 main ()
32 {
33 ExifData *ed;
34 /* ExifEntry *e; */
35 unsigned char *eb, size[2];
36 unsigned int ebs;
37 ExifLoader *loader;
38 unsigned int i;
39
40 printf ("Creating EXIF data...\n");
41 ed = exif_data_new ();
42 if (!ed) {
43 fprintf(stderr, "Out of memory\n");
44 exit(13);
45 }
46
47 exif_data_set_data_type (ed, EXIF_DATA_TYPE_UNCOMPRESSED_CHUNKY);
48
49 printf ("Fill EXIF data with all necessary entries to follow specs...\n");
50 exif_data_fix (ed);
51
52 /* Add a dummy thumbnail */
53 ed->size = 4;
54 ed->data = calloc(1, ed->size);
55 if (!ed->data) {
56 fprintf(stderr, "Out of memory\n");
57 exif_data_unref (ed);
58 exit(13);
59 }
60
61 exif_data_dump (ed);
62
63 printf ("Saving EXIF data to memory...\n");
64 exif_data_save_data (ed, &eb, &ebs);
65 exif_data_unref (ed);
66
67 printf ("Writing %i byte(s) EXIF data to loader...\n", ebs);
68 loader = exif_loader_new ();
69 if (!loader) {
70 fprintf(stderr, "Out of memory\n");
71 free (eb);
72 exit(13);
73 }
74 size[0] = (unsigned char) ebs;
75 size[1] = (unsigned char) (ebs >> 8);
76 exif_loader_write (loader, size, 2);
77 for (i = 0; i < ebs && exif_loader_write (loader, eb + i, 1); i++);
78 printf ("Wrote %i byte(s).\n", i);
79 free (eb);
80 ed = exif_loader_get_data (loader);
81 if (!ed) {
82 fprintf(stderr, "Out of memory\n");
83 exit(13);
84 }
85 exif_loader_unref (loader);
86 exif_data_dump (ed);
87 exif_data_unref (ed);
88
89 return 0;
90 }
91