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September 2008
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2008.09.24 19:44 "tiffinfo dies when run against specific test file", by David Steinbrunner
Hello, As a part of a system I am working on, tiffinfo is used to figure out if files seen as tiff images by ImageMagick are actually tiff or raw. We have a test suite that shows that this works just fine on RHEL4 with libtiff 3.7.1 installed but when running these tests on RHEL5, which has the latest stable version of libtiff, one of the test cases fail. I was able to find that tiffinfo seg faults which does not allow our code to get the info it needs from tiffinfo. Here is the output: $ tiffinfo RAW_LEICA_M8.DNG TIFFReadDirectory: Warning, /home/dsteinbrunner/album_wc/branches/db-backend/src/perl/modules/Album-Meta dataSniffer/t/RAW_LEICA_M8.DNG: unknown field with tag 34859 (0x882b) encountered. TIFFReadDirectory: Warning, /home/dsteinbrunner/album_wc/branches/db-backend/src/perl/modules/Album-Meta dataSniffer/t/RAW_LEICA_M8.DNG: unknown field with tag 36867 (0x9003) encountered. TIFFReadDirectory: Warning, RAW_LEICA_M8.DNG: unknown field with tag 37390 (0x920e) encountered. TIFFReadDirectory: Warning, RAW_LEICA_M8.DNG: unknown field with tag 37391 (0x920f) encountered. TIFFReadDirectory: Warning, RAW_LEICA_M8.DNG: unknown field with tag 37392 (0x9210) encountered. TIFFReadDirectory: Warning, RAW_LEICA_M8.DNG: unknown field with tag 37398 (0x9216) encountered. TIFF Directory at offset 0x8 (8) Subfile Type: reduced-resolution image (1 = 0x1) Image Width: 320 Image Length: 240 Resolution: 72, 72 pixels/inch Bits/Sample: 8 Compression Scheme: None Photometric Interpretation: RGB color Orientation: row 0 top, col 0 lhs Samples/Pixel: 3 Rows/Strip: 68 Planar Configuration: single image plane SubIFD Offsets: 494 Make: Leica Camera AG Model: M8 Digital Camera Software: 1.107 Artist: Copyright: EXIFIFDOffset: 764 Tag 34859: 0 Tag 36867: 2007:08:02 22:13:49 Tag 37390: 3729.000000 Tag 37391: 3764.000000 Tag 37392: 2 Tag 37398: 0,0,0,1 DNGVersion: 1,0,0,0 UniqueCameraModel: M8 Digital Camera ColorMatrix1: 1.046900,-0.531400,0.128000,-0.432600,1.217600,0.241900,-0.088600,0.247300,0 .716000 ColorMatrix2: 0.767500,-0.219500,-0.030500,-0.586000,1.411800,0.185700,-0.242500,0.400700, 0.657800 CameraCalibration1: 1.000000,0.000000,0.000000,0.000000,1.000000,0.000000,0.000000,0.000000,1.00 0000 CameraCalibration2: 1.000000,0.000000,0.000000,0.000000,1.000000,0.000000,0.000000,0.000000,1.00 0000 AsShotNeutral: 0.475064,1.000000,0.796616 BaselineNoise: 1.000000 BaselineSharpness: 1.000000 CameraSerialNumber: 3106091 CalibrationIlluminant1: 17 CalibrationIlluminant2: 21 TIFF Directory at offset 0x2fc (764) Segmentation fault Not knowing if this was a libtiff issue or RHEL5 issue I installed it on my Mac OS X 10.5.5 system using macports and I got the same result except that "Segmentation fault" read as "Bus error". Any thoughts? I can make the 10 MB file available upon request. Thanks, -- David Steinbrunner