Added own exif tag handling in files exif.[ch]

1 files changed, 41 insertions, 0 deletions

diff --git a/exif.h b/exif.h
new file mode 100644
index 0000000..6bb6f9c
--- /dev/null
+++ b/exif.h
@@ -0,0 +1,41 @@
+/* sxiv: exif.h
+ * Copyright (c) 2011 Bert Muennich <be.muennich at googlemail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef EXIF_H
+#define EXIF_H
+
+#include "types.h"
+
+enum {
+	JPEG_MARKER_SOI  = 0xFFD8,
+	JPEG_MARKER_APP1 = 0xFFE1
+};
+
+enum {
+	EXIF_MAX_LEN          = 0x10000,
+	EXIF_HEAD             = 0x45786966,
+	EXIF_BO_BIG_ENDIAN    = 0x4D4D,
+	EXIF_BO_LITTLE_ENDIAN = 0x4949,
+	EXIF_TAG_MARK         = 0x002A,
+	EXIF_TAG_ORIENTATION  = 0x0112
+};
+
+int exif_orientation(const fileinfo_t*);
+void exif_auto_orientate(const fileinfo_t*); /* in image.c */
+
+#endif /* EXIF_H */