Unable to open some DNG-Files created by Pentax-K7
This may be related to Bug #11957
I'm running darktable on Gentoo.
I have set my Pentax cameras to store pictures as DNG and until now there hasn't been a problem.
Recently I am unable to open some of the DNG-Files, ORF- and PEF-Files seem to work fine though.
Inside dt I get an error-message saying "unable to read white balance" or "unknown file format" or "file doesn't exist" and on console it reads
[rawspeed] (IMGP2345.dng) void rawspeed::AbstractParallelizedDecompressor::startThreading(rawspeed::uint32) const, line 112: Too many errors encountered. Giving up. First Error:
void rawspeed::BitStream<Tag, Cache>::fillSafe() [with Tag = rawspeed::JPEGBitPumpTag; Cache = rawspeed::BitStreamCacheRightInLeftOut], line 128: Buffer overflow read in BitStream
[temperature] failed to read camera white balance information from `IMGP2345.dng'!
The same file opens in RawTherapee without problems
Strangely this doesn't even affect all of my K3-Files and I'm unable to spot the difference (apparently I didn't even update the camera firmware).
I am attaching two DNG-Files named working.dng (opens in dt as expected) and notworking.dng (throwing the above mentioned errors when tried to open in dt, but opening without problem in RawTherapee.
Maybe someone can have a look into this issue.