all done!

a few more tests though

ChangeLog

@@ -9,6 +9,8 @@
 - better python detection and build [Felix Bünemann]
 - max-alpha defaults to 65535 for RGB16/GREY16
 - added radsave_buffer [Henri Chain]
+- support tiff orientation tag
+- autorotate option for tiff load
 
 18/5/16 started 8.3.2
 - more robust vips image reading

TODO

@@ -1,14 +1,8 @@
 - save a 16-bit image to tiff with jpg compression ... should it autoconvert?
 
-- try
-
-	vips copy orientation-test.jpg x.tif
-	vips copy x.tif x.jpg
-
-  orientation tag not preserved for tif->jpg
-
 - add a set of tests for orientation
 
+  test autorotate flags on tiff and jpeg
 
   see https://github.com/jcupitt/libvips/issues/243
 

libvips/foreign/tiff2vips.c

@@ -197,8 +197,8 @@
  */
 
 /* 
- */
 #define DEBUG
+ */
 
 #ifdef HAVE_CONFIG_H
 #include <config.h>

libvips/foreign/vips2jpeg.c

@@ -543,7 +543,7 @@ set_exif_orientation( ExifData *ed, VipsImage *im )
 	/* We set the tag, even if it's been deleted, since it's a required
 	 * field.
 	 */
-	if( !vips_image_get_int( im, VIPS_META_ORIENTATION, &orientation ) ) 
+	if( vips_image_get_int( im, VIPS_META_ORIENTATION, &orientation ) ) 
 		orientation = 1;
 
 	VIPS_DEBUG_MSG( "set_exif_orientation: %d\n", orientation );

test/test_foreign.py

@@ -167,7 +167,7 @@ class TestForeign(unittest.TestCase):
         have_exif = False
         x = Vips.Image.new_from_file(self.jpeg_file)
         try:
-            # our test image does have this field
+            # our test image has this field
             y = x.get_value("exif-ifd0-Orientation")
             have_exif = True
         except:
@@ -177,11 +177,11 @@ class TestForeign(unittest.TestCase):
             # we need a copy of the image to set the new metadata on
             # otherwise we get caching problems
             x = x.copy()
-            x.set_value("exif-ifd0-Orientation", "2")
+            x.set_value("orientation", 2)
             x.write_to_file("test.jpg")
             x = Vips.Image.new_from_file("test.jpg")
-            y = x.get_value("exif-ifd0-Orientation")
-            self.assertEqual(y[0], "2")
+            y = x.get_value("orientation")
+            self.assertEqual(y, 2)
 
             os.unlink("test.jpg")
 
@@ -240,6 +240,18 @@ class TestForeign(unittest.TestCase):
         self.save_load_file("test-10.tif", 
                             "[tile,tile-width=256]", self.colour, 10)
 
+        # we need a copy of the image to set the new metadata on
+        # otherwise we get caching problems
+        x = Vips.Image.new_from_file(self.tiff_file)
+        x = x.copy()
+        x.set_value("orientation", 2)
+        x.write_to_file("test.tif")
+        x = Vips.Image.new_from_file("test.tif")
+        y = x.get_value("orientation")
+        self.assertEqual(y, 2)
+
+        os.unlink("test.tif")
+
     def test_magickload(self):
         x = Vips.type_find("VipsForeign", "magickload")
         if not x.is_instantiatable():