#include"cv.h"

 #include"highgui.h"

 int main(int argc, char** argv)

 {

     cvNamedWindow("camera", CV_WINDOW_AUTOSIZE);

     argc = ;

     CvCapture* capture;

     capture = cvCreateCameraCapture();//如果不行换成-1,0,1试试

     assert(capture != NULL);

     IplImage* frame;

     CvSize size = cvSize((int)cvGetCaptureProperty(capture, CV_CAP_PROP_FRAME_WIDTH),

         (int)cvGetCaptureProperty(capture, CV_CAP_PROP_FRAME_HEIGHT));

     double fps = cvGetCaptureProperty(

                 capture,

                 CV_CAP_PROP_FPS//帧率

                 );

     CvVideoWriter* writer = cvCreateVideoWriter(  // On linux Will only work if you've installed ffmpeg development files correctly,

                 "D:\\Opencv\\testData\\camera.avi",                               // otherwise segmentation fault.  Windows probably better.

                 CV_FOURCC('D', 'X', '', ''),

                 ,//摄像头好像帧率获取出来为0，故设为15

                 size

                 );

     IplImage* imgWrite = cvCreateImage(size, , );

     while (){

         frame = cvQueryFrame(capture);

         if (!frame)

             break;

         char c = cvWaitKey();

             if (c == ) break;

         cvCopy(frame, imgWrite);

         cvWriteToAVI(writer, imgWrite);

         cvShowImage("camera", frame);

     }

     cvReleaseCapture(&capture);

     cvReleaseVideoWriter(&writer);

     cvDestroyWindow("camera");

     return ;

 }