[转]使用OpenCV进行视频读写

#include <opencv/cxcore.h> #include <opencv/highgui.h> #include <opencv/cv.h> #undef RC_OPENCV_2_1_0 #ifdef _DEBUG #ifdef RC_OPENCV_2_1_0 #pragma comment( lib, "cxcore210d.lib" ) #pragma comment( lib, "cv210d.lib" ) #pragma comment( lib, "highgui210d.lib" ) #else #pragma comment( lib, "opencv_core220d.lib" ) #pragma comment( lib, "opencv_highgui220d.lib" ) #pragma comment( lib, "opencv_imgproc220d.lib" ) #endif #else #ifdef RC_OPENCV_2_1_0 #pragma comment( lib, "cxcore210.lib" ) #pragma comment( lib, "cv210.lib" ) #pragma comment( lib, "highgui210.lib" ) #else #pragma comment( lib, "opencv_core220.lib" ) #pragma comment( lib, "opencv_highgui220.lib" ) #pragma comment( lib, "opencv_imgproc220.lib" ) #endif #endif void main() { /** 打开输入视频文件 */ cv::VideoCapture vc; vc.open( ".//test.avi" ); if ( vc.isOpened() ) { /** 打开输出视频文件 */ cv::VideoWriter vw; vw.open( ".//output.avi", // 输出视频文件名 (int)vc.get( CV_CAP_PROP_FOURCC ), // 也可设为CV_FOURCC_PROMPT，在运行时选取 (double)vc.get( CV_CAP_PROP_FPS ), // 视频帧率 cv::Size( (int)vc.get( CV_CAP_PROP_FRAME_WIDTH ), (int)vc.get( CV_CAP_PROP_FRAME_HEIGHT ) ), // 视频大小 true ); // 是否输出彩色视频 /** 如果成功打开输出视频文件 */ if ( vw.isOpened() ) { while ( true ) { /** 读取当前视频帧 */ cv::Mat frame; vc >> frame; /** 若视频读取完毕，跳出循环 */ if ( frame.empty() ) { break; } /** 将视频写入文件 */ vw << frame; } } } /** 手动释放视频捕获资源 */ vc.release(); }