cmake_ example

file name: camke_camera    set 5 file follow as:

bin

build

include

res

src

the camer.cpp in src file

camer.cpp

#include <iostream>
#include<string.h>
#include<fstream>
#include <opencv2/opencv.hpp>

using namespace std;
using namespace cv;
using namespace ml;

int device = 0;
int i_begin = 0;
int width = 2560;
int height = 720;
double fps = 45.0;
std::string outputVideoPath = "test\\";
std::string outputVideoName = "test.avi";
std::string outputPicturePath = "Latest\\";
std::string outputPictureFormat = ".jpg";
std::string imshowWindowName = "result";
int quit = 'q';
int fourcc = cv::VideoWriter::fourcc('M', 'P', '4', '2');
int waitkey_time = 100;

int main()
{
	cv::VideoCapture capture(device);

	if (!capture.isOpened())                          
	{
		return -1;
	}

	capture.set(cv::CAP_PROP_FRAME_WIDTH, width);   
	capture.set(cv::CAP_PROP_FRAME_HEIGHT, height);   

	int vedio_width = capture.get(cv::CAP_PROP_FRAME_WIDTH);     
	int vedio_height = capture.get(cv::CAP_PROP_FRAME_HEIGHT);   
	cv::VideoWriter video(outputVideoPath+ outputVideoName, fourcc,\
	 fps, cv::Size(vedio_width, vedio_height));
	while (true)
	{
		cv::Mat frame;
		capture >> frame;
		if (frame.empty())
			continue;
		cv::namedWindow(imshowWindowName, CV_WINDOW_NORMAL);
		cv::imshow(imshowWindowName, frame);
		//cv::imwrite(outputPicturePath + to_string(i_begin) + outputPictureFormat, frame);
		i_begin++;
		video << frame;
		int q=cv::waitKey(waitkey_time);
		if (q == quit)
			break;
	}
	capture.release();
	video.release();
	cv::destroyAllWindows();
	return 0;
}

CMakeLists.txt

cmake_minimum_required (VERSION 2.8)

project (mydemo)

set (EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin)

find_package(OpenCV REQUIRED)

aux_source_directory (src SRC_LIST)

include_directories (include)

add_executable (main ${SRC_LIST})
target_link_libraries(main ${OpenCV_LIBS})