Add libexif to deps/third_party.

libexif/sources/test/test-mnote.c

+/* exif-mnote.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 <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <libexif/exif-data.h>
+
+static int
+test_exif_data (ExifData *d)
+{
+        unsigned int i, c;
+        char v[1024], *p;
+        ExifMnoteData *md;
+
+        fprintf (stdout, "Byte order: %s\n",
+                exif_byte_order_get_name (exif_data_get_byte_order (d)));
+
+        fprintf (stdout, "Parsing maker note...\n");
+        md = exif_data_get_mnote_data (d);
+        if (!md) {
+                fprintf (stderr, "Could not parse maker note!\n");
+                exif_data_unref (d);
+                return 1;
+        }
+
+        fprintf (stdout, "Increasing ref-count...\n");
+        exif_mnote_data_ref (md);
+
+        fprintf (stdout, "Decreasing ref-count...\n");
+        exif_mnote_data_unref (md);
+
+        fprintf (stdout, "Counting entries...\n");
+        c = exif_mnote_data_count (md);
+        fprintf (stdout, "Found %i entries.\n", c);
+        for (i = 0; i < c; i++) {
+                fprintf (stdout, "Dumping entry number %i...\n", i);
+                fprintf (stdout, "  Name: '%s'\n",
+                                exif_mnote_data_get_name (md, i));
+                fprintf (stdout, "  Title: '%s'\n",
+                                exif_mnote_data_get_title (md, i));
+                fprintf (stdout, "  Description: '%s'\n",
+                                exif_mnote_data_get_description (md, i));
+                p = exif_mnote_data_get_value (md, i, v, sizeof (v));
+                if (p) { fprintf (stdout, "  Value: '%s'\n", v); }
+        }
+
+        return 0;
+}
+
+int
+main (int argc, char **argv)
+{
+        ExifData *d;
+        unsigned int buf_size;
+        unsigned char *buf;
+        int r;
+
+        if (argc <= 1) {
+                fprintf (stderr, "You need to supply a filename!\n");
+                return 1;
+        }
+
+        fprintf (stdout, "Loading '%s'...\n", argv[1]);
+        d = exif_data_new_from_file (argv[1]);
+        if (!d) {
+                fprintf (stderr, "Could not load data from '%s'!\n", argv[1]);
+                return 1;
+        }
+        fprintf (stdout, "Loaded '%s'.\n", argv[1]);
+
+        fprintf (stdout, "######### Test 1 #########\n");
+        r = test_exif_data (d);
+        if (r) return r;
+
+        exif_data_save_data (d, &buf, &buf_size);
+        exif_data_unref (d);
+        d = exif_data_new_from_data (buf, buf_size);
+        free (buf);
+
+        fprintf (stdout, "######### Test 2 #########\n");
+        r = test_exif_data (d);
+        if (r) return r;
+
+        fprintf (stdout, "Test successful!\n");
+
+        return 1;
+}