From df39e13cf7f50654f8aa9f19d2d6d8efcce46fdf Mon Sep 17 00:00:00 2001
From: Alberto Griggio <agriggio@users.noreply.github.com>
Date: Mon, 16 Sep 2019 01:30:52 -0700
Subject: [PATCH] properly handle exif orientation

translate the tag value to string using the exiftool way, to be compatible with RT.
Fixes issue #4

(cherry picked from commit a4621f54b2ac82b679cf9d865a0a3e4a2ed9c468)
---
 rtengine/imagedata.cc | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/rtengine/imagedata.cc b/rtengine/imagedata.cc
index 2434fc42b..3b61d2baa 100644
--- a/rtengine/imagedata.cc
+++ b/rtengine/imagedata.cc
@@ -256,7 +256,23 @@ FramesData::FramesData(const Glib::ustring &fname) :
         }
 
         if (find_tag(Exiv2::orientation)) {
-            orientation = validateUft8(pos->print(&exif)); // validateUft8 (#5923) still needed?
+            static const std::vector<std::string> ormap = {
+                "Unknown",
+                "Horizontal (normal)",
+                "Mirror horizontal",
+                "Rotate 180",
+                "Mirror vertical",
+                "Mirror horizontal and rotate 270 CW",
+                "Rotate 90 CW",
+                "Mirror horizontal and rotate 90 CW",
+                "Rotate 270 CW",
+                "Unknown"
+            };
+            auto idx = pos->toLong();
+            if (idx >= 0 && idx < long(ormap.size())) {
+                orientation = ormap[idx];
+            }
+            //orientation = pos->print(&exif);
         }
 
         if (find_tag(Exiv2::lensName)) {