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Save base IFDs when converting Exif to bytes

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This commit is contained in:
Andrew Murray 2020-10-05 20:16:48 +11:00
parent faf8fad76d
commit 4b14f0102d
2 changed files with 10 additions and 0 deletions
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8
Tests/test_image.py
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@ -752,6 +752,14 @@ class TestImage:
4098: 1704, 4098: 1704,
} }
def test_exif_ifd(self):
im = Image.open("Tests/images/flower.jpg")
exif = im.getexif()
reloaded_exif = Image.Exif()
reloaded_exif.load(exif.tobytes())
assert reloaded_exif.get_ifd(0x8769) == exif.get_ifd(0x8769)
@pytest.mark.parametrize( @pytest.mark.parametrize(
"test_module", "test_module",
[PIL, Image], [PIL, Image],

2
src/PIL/Image.py
View File

@ -3371,6 +3371,8 @@ class Exif(MutableMapping):
head = b"MM\x00\x2A\x00\x00\x00\x08" head = b"MM\x00\x2A\x00\x00\x00\x08"
ifd = TiffImagePlugin.ImageFileDirectory_v2(ifh=head) ifd = TiffImagePlugin.ImageFileDirectory_v2(ifh=head)
for tag, value in self.items(): for tag, value in self.items():
if tag in [0x8769, 0x8225] and not isinstance(value, dict):
value = self.get_ifd(tag)
ifd[tag] = value ifd[tag] = value
return b"Exif\x00\x00" + head + ifd.tobytes(offset) return b"Exif\x00\x00" + head + ifd.tobytes(offset)