invalid type value detected in Image::printIFDStructure: 21059

[potuz]

I am attaching a picture taken yesterday with my camera. Exiv2 fails on this picture with the messages

invalid type value detected in Image::printIFDStructure:  21059
Exiv2 exception in print action for file _MG_2027.CR2:
invalid type value detected in Image::printIFDStructure

Perhaps I should debug this before posting here, but this issue and #156 which is raised often by photos from my camera are preventing me from using other software that relies on exiv2.

If it's anything useful I realized that the photos that are failing are all that I have taken with an external flash
_MG_2027.zip

[D4N]

This issue will be closed by #180. I hope to merge it in the next few days.

[potuz]

Thanks! this can be closed for all I know

[D4N]

I'd like to keep this issue open for now, although it is no longer reachable from the standard application, you can still trigger the bug via exiv2 -pR $file. Looks like printStructure continues processing the image file, whereas the tiff-parser gives up earlier (or just ignores invalid entries).

[clanmills]

I'm going to close this one. Thanks to @D4N, we are no long preprocessing the file with printStructure(recursive), so exiv2 now finds the metadata with a warning:

595 rmills@rmillsmbp:~/gnu/github/exiv2/exiv2/build $ bin/exiv2 -pa ~/Downloads/_MG_2027.CR2
Warning: Directory Canon has an unexpected next pointer; ignored.
Exif.Image.ImageWidth                        Short       1  1536
...
Exif.Image3.StripByteCounts                  Long        1  6577889
596 rmills@rmillsmbp:~/gnu/github/exiv2/exiv2/build $ 

When you explicitly use printStructure(recursive) with $ exiv2 -pR image-path, the output is sane and reasonable.

594 rmills@rmillsmbp:~/gnu/github/exiv2/exiv2/build $ bin/exiv2 -pR ~/Downloads/_MG_2027.CR2
STRUCTURE OF TIFF FILE (II): /Users/rmills/Downloads/_MG_2027.CR2
 address |    tag                              |      type |    count |    offset | value
      18 | 0x0100 ImageWidth                   |     SHORT |        1 |           | 1536
      30 | 0x0101 ImageLength                  |     SHORT |        1 |           | 1024
...
  STRUCTURE OF TIFF FILE (II): /Users/rmills/Downloads/_MG_2027.CR2
   address |    tag                              |      type |    count |    offset | value
       272 | 0x829a ExposureTime                 |  RATIONAL |        1 |       612 | 1/60
       284 | 0x829d FNumber                      |  RATIONAL |        1 |       620 | 40/10
...
    STRUCTURE OF TIFF FILE (II): /Users/rmills/Downloads/_MG_2027.CR2
     address |    tag                              |      type |    count |    offset | value
         702 | 0x0001 Version                      |     SHORT |       46 |       996 | 92 2 0 4 2 ...
         714 | 0x0002 ISOSpeed                     |     SHORT |        4 |      1088 | 1 28 907 605
...
         978 | 0x4003                              |     SHORT |       22 |      8988 | 0 0 0 0 0 ...
invalid type value detected in Image::printIFDStructure:  21059
Exiv2 exception in print action for file /Users/rmills/Downloads/_MG_2027.CR2:
invalid type value detected in Image::printIFDStructure
595 rmills@rmillsmbp:~/gnu/github/exiv2/exiv2/build $