opencv多视频同一窗口显示C++程序

/************************************************************************/ /*@file Copyright (C) 2015 LeafLiu @version 2015-3-27 20:28:44 */ /************************************************************************/ #include<opencv/cv.h> #include<opencv/highgui.h> #include<iostream> #define LOG printf int main() { char* Lfilename = "C:\\Users\\leaf\\Desktop\\汇报2015-3-16\\VS_block_res_no_shift_no_fusion_affine~1.avi"/*argv[1]*/; char* Rfilename = "C:\\Users\\leaf\\Desktop\\汇报2015-3-16\\VS_block_result_SURF.avi"; CvCapture* pLcapture = NULL; CvCapture* pRcapture= NULL; if( !(pLcapture = cvCaptureFromAVI(Lfilename))) { LOG("error load left file\n"); return 0; } if( !(pRcapture = cvCaptureFromAVI(Rfilename))) { LOG("error load right file\n"); return 0; } int LframeH = (int) cvGetCaptureProperty(pLcapture, CV_CAP_PROP_FRAME_HEIGHT); int LframeW = (int) cvGetCaptureProperty(pLcapture, CV_CAP_PROP_FRAME_WIDTH); int RframeH = (int) cvGetCaptureProperty(pRcapture, CV_CAP_PROP_FRAME_HEIGHT); int RframeW = (int) cvGetCaptureProperty(pRcapture, CV_CAP_PROP_FRAME_WIDTH); if( LframeH!=RframeH||LframeW!=RframeW) { LOG("error-different video size\n"); return 0; } int border = 20; CvVideoWriter *pWriter_join= cvCreateVideoWriter("VS4_join.avi",CV_FOURCC('X','V','I','D'),20,cvSize(LframeW*2+border,LframeH),1); IplImage* pLcurframe,*pRcurframe; bool bRun = true; int idx=0; while((pLcurframe = cvQueryFrame(pLcapture)) && (pRcurframe =cvQueryFrame(pRcapture))&& bRun) { IplImage *imgJoin=cvCreateImage(cvSize(LframeW*2+border,LframeH),IPL_DEPTH_8U,3); cvSetImageROI(imgJoin,cvRect(0,0,LframeW,LframeH)); cvCopy(pLcurframe,imgJoin); cvSetImageROI(imgJoin,cvRect(LframeW+border,0,LframeW,LframeH)); cvCopy(pRcurframe,imgJoin); cvWriteFrame(pWriter_join,imgJoin); cvReleaseImage(&imgJoin); int k = cvWaitKey(30); switch((char)k) { case 'q': bRun = false; break; } idx++; printf("%d\n",idx); } cvReleaseVideoWriter(&pWriter_join); return 0; }