opencv写入AVI文件[8]
1 /**
2 此程序实现读入一个彩色视频文件，写入另一个avi文件
3 **/
4 #include <highgui.h>
5 #include <cv.h>
6 int main(int argc,char * argv[])
7 {
8 CvCapture * capture = cvCreateFileCapture("I:\\资料\\opencv相关资料\\OpenCV教程\\图像与视频\\video.long.mjpg.avi");
9 //capture =cvCreateFileCapture(argv[1]);
10 if(!capture)
11 {
12 return -1;
13 }
14 IplImage * bgr_frame = cvQueryFrame(capture);
15 double fps = cvGetCaptureProperty(capture,CV_CAP_PROP_FPS);
16 CvSize size = cvSize((int)cvGetCaptureProperty(capture,CV_CAP_PROP_FRAME_WIDTH),(int)cvGetCaptureProperty(capture,CV_CAP_PROP_FRAME_HEIGHT));
17 CvVideoWriter * writer = cvCreateVideoWriter("out-avi",CV_FOURCC('M','J','P','G'),fps,size);
18 IplImage * logpolar_frame = cvCreateImage(size,IPL_DEPTH_8U,3);
19 while((bgr_frame=cvQueryFrame(capture))!= NULL)
20 {
21 ////以图像中心位原点，缩放比例40，双线性插值，空白部分填充黑色。
22 //cvLogPolar(bgr_frame,logpolar_frame,cvPoint2D32f(bgr_frame->width/2,bgr_frame->height/2),40,CV_INTER_LINEAR+CV_WARP_FILL_OUTLIERS);
23 cvWriteFrame(writer,logpolar_frame);
24
25 logpolar_frame = cvQueryFrame(capture);
26 if(!logpolar_frame)break;
27 cvShowImage("example",logpolar_frame);
28 char c = cvWaitKey(33);
29 if(c==27) break;
30 }
31 cvNamedWindow("example",CV_WINDOW_AUTOSIZE);
32 cvWaitKey(0);
33 cvReleaseVideoWriter(&writer);
34 cvReleaseImage(&logpolar_frame);
35 cvReleaseCapture(&capture);
36 return 0;
37 }
posted on 2013-02-28 16:03 0fengfan0 阅读(1246) 评论(0) 编辑 收藏 举报
