test-value.c

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/* test-value.c
 *
 * Copyright 2002 Lutz M\uffffller <lutz@users.sourceforge.net>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA  02110-1301  USA.
 */

#include <libexif/exif-utils.h>
#include <libexif/exif-data.h>

#include <stdio.h>
#include <stdlib.h>

int
main ()
{
        ExifData *d;
        ExifEntry *e;
        char v[1024];
        ExifSRational r = {1., 20.};
        unsigned int i;

        d = exif_data_new ();
        if (!d) {
                printf ("Error running exif_data_new()\n");
                exit(13);
        }

        e = exif_entry_new ();
        if (!e) {
                printf ("Error running exif_entry_new()\n");
                exit(13);
        }

        exif_content_add_entry (d->ifd[EXIF_IFD_0], e);
        exif_entry_initialize (e, EXIF_TAG_SHUTTER_SPEED_VALUE);
        exif_set_srational (e->data, exif_data_get_byte_order (d), r);

        for (i = 30; i > 0; i--) {
                printf ("Length %2i: '%s'\n", i, 
                        exif_entry_get_value (e, v, i));
        }

        exif_entry_unref (e);
        exif_data_unref (d);

        return 0;
}

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