Merge branch 'devel'

CHANGES.txt

@@ -1,3 +1,6 @@
+Jun 07, 2013 - v0.1.7  Changed Exif dictionary names from ['Exif', 'Photo',
+    'Iop', 'GPSInfo'] to ['Image', 'Photo', 'Iop', 'GPSInfo'].  
+
 Jun 06, 2013 - v0.1.6  Exif classes made private.  Refactored IFD post
     processing.  Corrected omission of Exif in UUIDBox docstring.
 

docs/source/conf.py

@@ -78,7 +78,7 @@ copyright = u'2013, John Evans'
 # The short X.Y version.
 version = '0.1'
 # The full version, including alpha/beta/rc tags.
-release = '0.1.6'
+release = '0.1.7'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

docs/source/introduction.rst

@@ -203,5 +203,5 @@ OpenJPEG counterparts are already failing, and others which do pass but
 still produce heaps of output on stderr.  Rather than let this swamp
 the signal (that most of the tests are actually passing), they've been
 filtered out for now.  There are also more skipped tests on Python 2.7
-than on Python 3.3.  The important point to remember is whether or not any test
+than on Python 3.3.  The important part is whether or not any test
 errors are reported at the end.

glymur/jp2box.py

@@ -1626,7 +1626,7 @@ class UUIDBox(Jp2kBox):
         elif kwargs['uuid'].bytes == b'JpgTiffExif->JP2':
             e = Exif(buffer)
             d = {}
-            d['Exif'] = e.exif_image
+            d['Image'] = e.exif_image
             d['Photo'] = e.exif_photo
             d['GPSInfo'] = e.exif_gpsinfo
             d['Iop'] = e.exif_iop
@@ -1779,7 +1779,13 @@ class _Ifd:
 
     def post_process(self, tagnum2name):
         for tag, value in self.raw_ifd.items():
+            try:
                 tag_name = tagnum2name[tag]
+            except KeyError:
+                # Ok, we don't recognize this tag.  Just use the numeric id.
+                msg = 'Unrecognized Exif tag "{0}".'.format(tag)
+                warnings.warn(msg, UserWarning)
+                tag_name = tag
             self.processed_ifd[tag_name] = value
 
 

glymur/test/test_jp2k.py

@@ -4,6 +4,7 @@ import doctest
 import imp
 import os
 import re
+import shutil
 import struct
 import sys
 import tempfile
@@ -658,5 +659,37 @@ class TestJp2k(unittest.TestCase):
         attr_value = elt.attrib['{0}CreatorTool'.format(ns1)]
         self.assertEqual(attr_value, 'glymur')
 
+    def test_unrecognized_exif_tag(self):
+        # An unrecognized exif tag should be handled gracefully.
+        with tempfile.NamedTemporaryFile(suffix='.jp2') as tfile:
+            shutil.copyfile(self.jp2file, tfile.name)
+
+            # The Exif UUID starts at byte 77.  There are 8 bytes for the L and
+            # T fields, then 16 bytes for the UUID identifier, then 6 exif
+            # header bytes, then 8 bytes for the TIFF header, then 2 bytes
+            # the the Image IFD number of tags, where we finally find the first
+            # tag, "Make" (271).  We'll corrupt it by changing it into 171,
+            # which does not correspond to any known Exif Image tag.
+            with open(tfile.name, 'r+b') as fp:
+                fp.seek(117)
+                buffer = struct.pack('<H', int(171))
+                fp.write(buffer)
+
+            # Verify that a warning is issued, but only on python3.
+            # On python2, just suppress the warning.
+            if sys.hexversion < 0x03030000:
+                with warnings.catch_warnings():
+                    warnings.simplefilter("ignore")
+                    j = Jp2k(tfile.name)
+            else:
+                with self.assertWarns(UserWarning) as cw:
+                    j = Jp2k(tfile.name)
+
+            exif = j.box[3].data
+            # Were the tag == 271, 'Make' would be in the keys instead.
+            self.assertTrue(171 in exif['Image'].keys())
+            self.assertFalse('Make' in exif['Image'].keys())
+
+
 if __name__ == "__main__":
     unittest.main()

glymur/test/test_printing.py

@@ -820,15 +820,7 @@ class TestPrinting(unittest.TestCase):
         lines = ["UUID Box (uuid) @ (77, 638)",
                  "    UUID:  4a706754-6966-6645-7869-662d3e4a5032 (Exif)",
                  "    UUID Data:  ",
-                 "{'Exif': {'ExifTag': 138,",
+                 "{'GPSInfo': {'GPSAltitude': 0.0,",
-                 "          'GPSTag': 354,",
-                 "          'Make': 'HTC',",
-                 "          'Model': 'HTC Glacier',",
-                 "          'ResolutionUnit': 2,",
-                 "          'XResolution': 72.0,",
-                 "          'YCbCrPositioning': 1,",
-                 "          'YResolution': 72.0},",
-                 " 'GPSInfo': {'GPSAltitude': 0.0,",
                  "             'GPSAltitudeRef': 0,",
                  "             'GPSDateStamp': '2013:02:09',",
                  "             'GPSLatitude': [42.0, 20.0, 33.61],",
@@ -853,6 +845,14 @@ class TestPrinting(unittest.TestCase):
                  "                                     75),",
                  "             'GPSTimeStamp': [19.0, 47.0, 53.0],",
                  "             'GPSVersionID': (2, 2, 0)},",
+                 " 'Image': {'ExifTag': 138,",
+                 "           'GPSTag': 354,",
+                 "           'Make': 'HTC',",
+                 "           'Model': 'HTC Glacier',",
+                 "           'ResolutionUnit': 2,",
+                 "           'XResolution': 72.0,",
+                 "           'YCbCrPositioning': 1,",
+                 "           'YResolution': 72.0},",
                  " 'Iop': None,",
                  " 'Photo': {'ColorSpace': 1,",
                  "           'ComponentsConfiguration': (1, 2, 3, 0),",
@@ -867,6 +867,7 @@ class TestPrinting(unittest.TestCase):
                  "           'PixelYDimension': 1424}}"]
 
         expected = '\n'.join(lines)
+
         self.assertEqual(actual, expected)
 
 if __name__ == "__main__":

setup.py

@@ -1,7 +1,7 @@
 from distutils.core import setup
 
 kwargs = {'name': 'Glymur',
-          'version': '0.1.6',
+          'version': '0.1.7',
           'description': 'Tools for accessing JPEG2000 files',
           'long_description': open('README.md').read(),
           'author': 'John Evans',