Choking on GPS IFD

[bgreen-litl]

I'm using 1.4.2 but it also happens in 2.0 .

Here's the image that causes the problem.

DEBUG JPEG format recognized data[0:2]=0xFFD8
DEBUG data[2]=0xFF data[3]=0xE1 data[6:10]=Exif
DEBUG Segment base 0x2
DEBUG APP1 at base 0x2
DEBUG Length: 0x17 0x7C
DEBUG Code: Exif
DEBUG Decrement base by 2 to get to pre-segment header (for compatibility with later code)
DEBUG Endian format is I (Intel)
DEBUG IFD 0 (Image) at offset 8:
DEBUG ImageDescription: (0x010E) ASCII=Gran Turismo 5 @ 170
DEBUG Make: (0x010F) ASCII=Polyphony Digital Inc. @ 186
DEBUG Model: (0x0110) ASCII=Gran Turismo 5 @ 210
DEBUG Orientation: (0x0112) Short=Horizontal (normal) @ 54
DEBUG XResolution: (0x011A) Ratio=72 @ 226
DEBUG YResolution: (0x011B) Ratio=72 @ 234
DEBUG ResolutionUnit: (0x0128) Short=Pixels/Inch @ 90
DEBUG Software: (0x0131) ASCII=PMB Service Uploader @ 242
DEBUG DateTime: (0x0132) ASCII=2012:06:23 08:24:05 @ 264
DEBUG YCbCrPositioning: (0x0213) Short=Co-sited @ 126
DEBUG Copyright: (0x8298) ASCII=TM&Copyright (C) 20, ... ] @ 284
DEBUG ExifOffset: (0x8769) Long=340 @ 150
Traceback (most recent call last):
File "./EXIF.py", line 131, in
main()
File "./EXIF.py", line 99, in main
data = process_file(img_file, stop_tag=stop_tag, details=detailed, strict=strict, debug=debug)
File "/Users/bob/src/exif-py/exifread/init.py", line 204, in process_file
hdr.dump_ifd(ifd, ifd_name, stop_tag=stop_tag)
File "/Users/bob/src/exif-py/exifread/classes.py", line 238, in dump_ifd
logger.debug('%s SubIFD at offset %d:', ifd_info[0], values[0])
IndexError: list index out of range

[javierpra]

@bgreen-litl Thanks. Someone will have a look as soon as we can.

[ianare]

Can you test with the latest version from Git please?

If it's OK then I will publish a new version with this fix.

Thanks,

• ianaré

[bgreen-litl]

Thanks! Your fix appears to fix the issue, but I need to work through some issues that the current master introduces to my dependent code. I was previously using 1.4.2 and it seems some tag names in the returned dict have changed in 2.x e.g. "GPS GPSLongitude" -> "EXIF GPS GPSLongitude" Also, I filed #46 which for the time being prevents me from switching off of 1.4.x.