read_exif twice or to dict will crash pyexiv2

[peter17]

Hi!

I encounter a problem with pyexiv2: the following will work fine:

Python 3.7.3 (default, Apr  4 2019, 08:55:10) 
[GCC 8.3.1 20190329] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyexiv2            
>>> image = pyexiv2.Image('image.jpg')
>>> image.read_exif()
{'Exif.Image.Make': 'Panasonic', 'Exif.Image.Model': 'DMC-FZ1000', ...

But calling read_exif a second time or saving output to a dict will produce:

>>> image.read_exif()
corrupted size vs. prev_size
Abandon (core dumped)

>>> exif = image.read_exif()
corrupted size vs. prev_size
Abandon (core dumped)

What can I do? Thanks in advance! Best regards

[LeoHsiao1]

I'm sorry I didn't notice this problem in time.

I haven't encountered this problem yet. The reason may be that your image metadata is a special value that I haven't encountered yet.

Please forward your image file to me and let me have a try.

I can successfully perform the following operations:

Python 3.6.7 (default, Oct 22 2018, 11:32:17)
[GCC 8.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyexiv2
>>> i = pyexiv2.Image("1.jpg")
>>> i.read_exif()
{'Exif.Image.ImageDescription': '11', 'Exif.Image.ExifTag': '2158',  ...
>>> len(i.read_exif())
9
>>> i.modify_exif({'Exif.Image.Make': 'Panasonic'})
>>> i.read_exif()["Exif.Image.Make"]
'Panasonic'

[peter17]

Hi @LeoHsiao1 I tried again and it is working fine now... I don't understand why. That image may have been corrupted... Thanks. Best regards.

[github-actions[bot]]

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