Yes, would you mind please emailing those two images (clearly marking which seems to work and which doesn't) to me?
On Jun 17, 2015, at 7:40 PM, John Burnett <[email protected]> wrote: > We are running into metadata issues with tif files created in oiio 1.5.16 > (after upgrading from 1.4.8). In both cases, we are building against libtiff > 4.0.3. > > As a repro, I started with a plain exr created with oiio 1.4.8: > > oiio-1.4.8/oiiotool --pattern checker 128x128 4 --ch R,G,B,=1.0 -d half -o > checker.exr > > And then created tx files with both 1.5.16 and 1.4.8 as a baseline: > > oiio-1.4.8/maketx --prman -o oiio-1.4.8.tx checker.exr > oiio-1.5.16/maketx --prman -o oiio-1.5.16.tx checker.exr > > Using tiffinfo built with libtiff 4.0.3 on oiio-1.5.16.tx image shows the > following printed to stderr: > > tiffinfo oiio-1.5.16.tx > /dev/null > TIFFFetchDirectory: Sanity check on directory count failed, zero tag > directories not supported. > TIFFReadCustomDirectory: Failed to read custom directory at offset 28686. > > ...and oiio-1.4.8.tx image shows no such issues. > > Lastly, using the tiffinfo that ships with prman 19 shows the following (I'm > not sure what version of libtiff prman is using, but the message makes it > look like it's 3.x): > > prman/bin/tiffinfo oiio-1.5.16.tx > /dev/null > TIFFReadDirectory: Warning, oiio-1.5.16.tx: wrong data type 13 for > "EXIFIFDOffset"; tag ignored. > > ...which is the base problem here - renders are spitting out the above > warning for all texture reads. > > tiffdump shows the two tx files are largely the same, except the 1.5.16 tx > has an extra TIFFTAG_EXIFIFD tag at the end of the 0th directory. The > biggest relevant source diff I can see between the two oiio versions is > TIFFOutput::write_exif_data. I'm half wondering if the > TIFFSetDirectory/TIFFSetField calls at the bottom of that method are failing > in some way, but this is literally the second time I've ever looked at the > tiff format and source, so it's a shot in the dark :). > > I have the above three image files I can mail over if that would be helpful > (checker.exr, oiio-1.4.8.tx, and oiio-1.5.16.tx). > > John > > _______________________________________________ > Oiio-dev mailing list > [email protected] > http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org -- Larry Gritz [email protected]
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