I am trying to use the C API to output a totally RAW tiff but I don't see a C API "setter" for specifying a tiff format. I can create a ppm file.
Peter
LibRaw
raw image decoder
Looking for FastRawViewer? It is HERE!
raw image decoder
I am trying to use the C API to output a totally RAW tiff but I don't see a C API "setter" for specifying a tiff format. I can create a ppm file.
Peter
Unless you want to survive
Unless you want to survive ABI change (e.g. libraw.dll/.so upgrade to very different version), you do not need setter.
Look into half_mt.c sample how to set fields in params w/o setter.
-- Alex Tutubalin @LibRaw LLC
Alex,
Alex,
I should have explained that I program in a language call LabVIEW. It has very limited ability to interact with LibRaw. The only method available is to use calls to the dll which is why I am trying to use the C setter/getters. If I could determine the pointer to the libraw_output_params_t structure I might be able to write to the structure but I see a long road ahead of me if I go down that road.
I need access to the RAW RGGB data for my astronomy image calibration application which I had based on
"DCRAW -v -D -4 -T filename" and am now trying to migrate to LibRaw. I suspect the quickest way for me to proceed is to use the example 4channels.exe. Do you agree or it there another way to proceed?
It looks like your problem is
It looks like your problem is different from 'no way to set output_tiff=1 via C-API':
- LibRaw internals are different from dcraw's while we keep some compatibility via dcraw_emu sample
- in particular, there is no document_mode (-d/-D options in dcraw), because unaltered raw data is already accessible via https://www.libraw.org/docs/API-datastruct.html#libraw_rawdata_t
So, it looks like you need to implement direct access to this data from your app (I'm not sure you need intermediate TIFF storage because data is already here).
-- Alex Tutubalin @LibRaw LLC
Alex,
Alex,
I don't know how to program in C or C++. I rely on being able to access LibRaw using either the C getters/putters or an executable. Accessing the libraw_rawdata_t structure is not available via the C getters/putters.
Peter
Sorry, there is no way to
Sorry, there is no way to provide getters for all points in LibRaw that may be need by user (user's code)
(and, also, maintain this when LibRaw internals get changed).
C-wrappers are trivial, you may implement your own via banal copy/paste/change accessed field name.
-- Alex Tutubalin @LibRaw LLC