ZXing C++ Port

ZXing is/was a Java library.

At some point a complete C++ port/rewrite was created and maintained in the official ZXing repo. However, at the time of writing the C++ port is no longer maintained and has been removed from the official ZXing repo.

This project was forked from the last ZXing commit to contain the C++ project, with the following exceptions

scons (Python) build system has been deleted.
Deleted black box tests, because they refer to a large test data in ZXing repo.
Added appropriate copyright/licensing details (based on those in the ZXing repo).
Updated README.md

Removal of build systems was done to minimise maintenance burden.

If tests and XCode projects (other than those produced automatically be CMake) are desired, then another repo should be created and this repo referenced as a submodule.

Building using CMake

CMake is a tool, that generates native makefiles and workspaces. It integrates well with a number of IDEs including Qt Creator and Visual Studio.

Usage with CLion or Qt Creator:

Simply open CMakeLists.txt as a new project
Additional command line arguments can be specified (see below)

Usage with Makefiles, Visual Studio, etc. (see cmake --help for a complete list of generators):

mkdir build
cd to build
Unix: run cmake -G "Unix Makefiles" ..
Windows: run cmake -G "Visual Studio 10" ..

You can switch between build modes by specifying:

-DCMAKE_BUILD_TYPE=Debug or
-DCMAKE_BUILD_TYPE=Release

OpenCV integration

When build on a system where opencv is installed the open cv bridge classes and executable will be built too.

Development tips

To profile the code (very useful to optimize the code):

Install Valgrind
Run valgrind --tool=callgrind build/zxing - path/to/test/data/*.jpg > report.html
Analyze output using KCachegrind

License

yongleex/zxing-cpp

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