C++中extern "C"的设立动机是实现C++与C及其它语言的混合编程。 C++语言支持函数重载，C语言不支持函数重载。函数被C++编译后在库中的名字与C语言的不同。-C++ extern "C" to set up the motivation is to implement a C++ mixed programming with C and other languages. C++ language support function overloading, C language do

linux下基于v4l2的摄像头监控系统 采用c语言编写，之中有v4l2的框架，格式转换的库文件，适合新手学习-linux based v4l2 camera monitoring system using c language, into a frame v4l2, the library file format conversion, suitable for novice learning