最近在使用v4l2获取视频。在编译的过程中，遇到了下面的问题，CMakeLists代码和报错程序截图如下：

# cmake needs this line cmake_minimum_required(VERSION 2.8.4) # Define project name project(capturev4l2) # Find OpenCV find_package(OpenCV REQUIRED) # Add OpenCV headers location to your include paths include_directories(${OpenCV_INCLUDE_DIRS}) # Declare the executable target built from your sources set(SOURCE capturev4l2.c) add_executable(capturev4l2 ${SOURCE}) # Link your application with OpenCV libraries target_link_libraries(capturev4l2 ${OpenCV_LIBS})

发现上面的错误提示有关于cuda，cmake cannot find -lopencv_dep_cudart。添加了cuda的CMakeLists依赖之后代码如下

# cmake needs this line cmake_minimum_required(VERSION 2.8.4) # Define project name project(capturev4l2) # Find OpenCV find_package(OpenCV REQUIRED) find_package(CUDA) # Add OpenCV headers and cuda header location to your include paths include_directories(${OpenCV_INCLUDE_DIRS}) include_directories("/usr/local/cuda-8.0/include") # Declare the executable target built from your sources set(SOURCE capturev4l2.c) add_executable(capturev4l2 ${SOURCE}) # Link your application with OpenCV libraries target_link_libraries(capturev4l2 ${OpenCV_LIBS})

编译

$cmake .. $make

最后在https://devtalk.nvidia.com/default/topic/970325/jetson-tx1/cmake-cannot-find-lopencv_dep_cudart/发现有人遇到了同样的问题。在CMakeLists加入下面这行代码

set(CUDA_USE_STATIC_CUDA_RUNTIME OFF)

编译成功。

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