LibRaw technical support

Stable LibRaw versions: technical support, errors, API questions

Segmentation fault when called subtract_black() version LibRaw-0.15.0-Beta1

Submitted by juanmafont on

Probed with .CR2 file from canon 350d.

Segmentation fault launch at line 2204 of libraw_cxx.cpp

 
2202           for(i=0; i< size*4; i++)
2203              {
2204               int val = imgdata.image[0][i];
2205                val -= cblk[i & 3];
2205                imgdata.image[0][i] = CLIP(val);
2205                if(C.data_maximum < val) C.data_maximum = val;
2205              }

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Cannot figure out correct color conversion

Submitted by SAn on

I trying to get correct color after iProcessor.unpack(), but was puzzled by contents of libraw_colordata_t structure. Suppose that I have already done demosaicing but still have color in camera color space. What formulas do I need to use to convert (R,G,B) -> (X,Y,Z)? I tried these without success:

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Crash with NEF file in scale_colors

Submitted by william on

Hi,
I'm trying out Libraw 14.6 and many images seem to work fine, but an old Nikon D70 NEF is causing crashes that seem to occur in scale_colors.

Can someone please test this file with the latest version and let me know if the crash is real or I am doing something wrong when using the library?
http://saar.se/temp/_DSC0178.NEF

Regards,
William

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Problem with precompiled libraw 0.14.7

Submitted by PFindMichael on 

// typedefinition: somewhere in another h file:
 
typedef libraw_data_t *           (*libraw_init_dll_def)(int v);
typedef void                      (*libraw_set_progress_handler_dll_def)(libraw_data_t*,progress_callback cb,void *datap);
typedef int                       (*libraw_open_file_dll_def)(libraw_data_t*, const char *);
typedef int                       (*libraw_adjust_sizes_info_only_dll_def)(libraw_data_t*);
typedef void                      (*libraw_close_dll_def)(libraw_data_t*);
typedef int                       (*libraw_unpack_dll_def)(libraw_data_t*);

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Cannot do "Native Building" using LibRaw-0.15.0-Alpha1

Submitted by Novfrank on

I could build the .lib, .dll and samples using LibRaw-0.14.7 by following the instructions of "Windows: Native Building". However when I tried to do the same thing using LibRaw-0.15.0-Alpha1, I got an error saying that

"cl.exe /EHsc /MP /MT /I. /DWIN32 /O2 /W0 /nologo /DUSE_JPEG /I..\jpeg-8d /DLIBRAW_BUILDLIB /Fo"object\\dcraw_common.obj" /c internal\dcraw_common.cpp
dcraw_common.cpp
.\internal/defines.h(58) : fatal error C1083: Cannot open include file: 'jpeglib.h': No such file or directory"

Does anyone know why??

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Build LibRaw for Windows 64bit

Submitted by Anonymous (not verified) on

Hi Everyone,
I've just downloaded LibRaw and I want to use it in my project. I got the source files and I built it in my Visual Studio 2010 as 64 bit. However, When I tried to integrate it to my project, I got the errors below. I believe there is something about the way it is compiled - my project usually only accepts static libs, that might be the problem.
Could you help me? Maybe telling me how to compile LibRaw as static lib...

Error	286	error LNK2005: atoi already defined in MSVCRTD.lib(MSVCR100D.dll)	C:\Pluribus\svn\source\Trunk\build64\Server\src\LIBCMT.lib(atox.obj)

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Noob Compilation question on linux (ubuntu 11.10)

Submitted by orangenuke on

Hi,
So I configured and ran make in the libraw folder. The library has been installed.
I just want to compile a very simple program on this page http://www.libraw.org/docs/Samples-LibRaw-eng.html
I have replaced the function name with main and file pointer with a constant.
What I don't get is to how to actually compile it.

I run the following command in the terminal
g++ -o rawexec -I/usr/local/include -L/usr/local/lib -lraw librawfile.cpp
and get a bunch of errors:
/usr/local/lib/libraw.so: undefined reference to `GOMP_loop_dynamic_next'

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