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LibDCR

LibDCR is a conversion of the well known dcraw.c software, created by Dave Coffin, into a C library. LibDCR is fully based on dcraw.c and inherits the same features and license terms.

The original dcraw.c source code is splitted in 3 files:

• libdcr.h : libray header file
• libdcr.c : library main file
• dcr.c : main dcraw.c application implemented using the libDCR library

Download libDCR

Differences between dcraw.c and libDCR/dcr.c:

• the global variables declared in dcraw.c, in libDCR are grouped in the DCRAW structure.
• the functions exported from libDCR have the "dcr_" prefix, and the first parameter is of type DCRAW*.
• the variables for the command line arguments are grouped in the dcr_options structure, inside the DCRAW structure. The command line arguments can be managed using the dcr_parse_command_line_options function.
• the application must initialize and free the DCRAW structure, using dcr_init_dcraw and dcr_cleanup_dcraw.
• the standard functions for file access are replaced with function pointers, grouped in the dcr_stream_ops structure, inside the DCRAW structure. dcr_init_dcraw initializes the pointers to the standard functions (fopen, fread, ...)

A basic application of libDCR is shown in CxImage, in the CxImageRAW class you can see how to setup a different file manager, or how to extract the pixel data from the image.

For further information on dcraw.c features and usage, please refer to the Dave Coffin's home page