1.1-學習Opencv與MFC混合編程之---利用畫圖函數，生成視頻，并寫入視頻文件
源代碼地址：http://download.csdn.net/detail/nuptboyzhb/3961674
寫視頻文件
Ø 新建菜單項，Learning OpenCV——> OpenCVr入門——>寫視頻文件
Ø 菜單項設置如下
Ø 建立類向導
Ø 編輯代碼
voidCCVMFCView::OnMyWriteVedio()
{
// TODO: Add your command handler codehere
CStringcsAVI="AVI Files(*.avi)|*.avi|";
CStringcsFilter=csAVI;
CStringname[]={"","avi",""};
CStringstrFileName;
CStringstrExtension;
CFileDialogFileDlg(false,NULL,NULL,OFN_HIDEREADONLY,csFilter);
// 文件存盤對話框
if(FileDlg.DoModal()==IDOK ) { // 選擇了文件名
strFileName= FileDlg.m_ofn.lpstrFile;
if(FileDlg.m_ofn.nFileExtension == 0) { // 無文件后綴
strExtension= name[FileDlg.m_ofn.nFilterIndex];
strFileName= strFileName + '.' + strExtension;
// 加文件后綴
}
int width = 1000, height = 700;
//-----------------------------------------------------
CvVideoWriter *vw;
vw= cvCreateVideoWriter (strFileName,-1,25, cvSize(width,height),1); //-1可以
//-----------------------------------------------------
int line_type = CV_AA; // changeit to 8 to see non-antialiased graphics
int i;
CvPoint pt1,pt2,pt_zhb;
double angle;
CvSize sz;
CvPoint ptt[6];
CvPoint* pt[2];
int arr[2];
CvFont font;
CvRNG rng;
int width3 = width*3, height3 =height*3;
CvSize text_size;
int ymin = 0;
// Load the source image
IplImage* image = cvCreateImage(cvSize(width,height), 8, 3 );
IplImage* image2;
// Create a window
cvNamedWindow(wndnamed, 1 );
cvZero( image );
cvShowImage(wndnamed,image);
cvWriteFrame(vw,image);
rng = cvRNG((unsigned)-1);
pt[0] = &(ptt[0]);
pt[1] = &(ptt[3]);
arr[0] = 3;
arr[1] = 3;
m_ImageType=-3;
for (i = 0; i< NUMBER; i++)
{
pt1.x=cvRandInt(&rng) %width3 - width;
pt1.y=cvRandInt(&rng) %height3 - height;
pt2.x=cvRandInt(&rng) %width3 - width;
pt2.y=cvRandInt(&rng) %height3 - height;
cvLine( image, pt1, pt2,random_color(&rng), cvRandInt(&rng)%10, line_type, 0 );
cvShowImage(wndnamed,image);
cvWriteFrame (vw,image);
cvWaitKey(DELAY);
}
for (i = 0; i< NUMBER; i++)
{
pt1.x=cvRandInt(&rng) %width3 - width;
pt1.y=cvRandInt(&rng) %height3 - height;
pt2.x=cvRandInt(&rng) %width3 - width;
pt2.y=cvRandInt(&rng) %height3 - height;
cvRectangle( image,pt1,pt2, random_color(&rng), cvRandInt(&rng)%10-1, line_type, 0 );
cvShowImage(wndnamed,image);
cvWriteFrame (vw,image);
cvWaitKey(DELAY);
}
for (i = 0; i< NUMBER; i++)
{
pt1.x=cvRandInt(&rng) %width3 - width;
pt1.y=cvRandInt(&rng) %height3 - height;
sz.width=cvRandInt(&rng)%200;
sz.height=cvRandInt(&rng)%200;
angle =(cvRandInt(&rng)%1000)*0.180;
cvEllipse( image, pt1, sz,angle, angle - 100, angle + 200,
random_color(&rng),cvRandInt(&rng)%10-1, line_type, 0 );
cvShowImage(wndnamed,image);
cvWriteFrame (vw,image);
cvWaitKey(DELAY);
}
for (i = 0; i< NUMBER; i++)
{
pt[0][0].x=cvRandInt(&rng)% width3 - width;
pt[0][0].y=cvRandInt(&rng)% height3 - height;
pt[0][1].x=cvRandInt(&rng)% width3 - width;
pt[0][1].y=cvRandInt(&rng)% height3 - height;
pt[0][2].x=cvRandInt(&rng)% width3 - width;
pt[0][2].y=cvRandInt(&rng)% height3 - height;
pt[1][0].x=cvRandInt(&rng)% width3 - width;
pt[1][0].y=cvRandInt(&rng)% height3 - height;
pt[1][1].x=cvRandInt(&rng)% width3 - width;
pt[1][1].y=cvRandInt(&rng)% height3 - height;
pt[1][2].x=cvRandInt(&rng)% width3 - width;
pt[1][2].y=cvRandInt(&rng)% height3 - height;
cvPolyLine( image, pt, arr,2, 1, random_color(&rng), cvRandInt(&rng)%10, line_type, 0 );
cvShowImage(wndnamed,image);
cvWriteFrame (vw,image);
cvWaitKey(DELAY);
}
for (i = 0; i< NUMBER; i++)
{
pt[0][0].x=cvRandInt(&rng)% width3 - width;
pt[0][0].y=cvRandInt(&rng)% height3 - height;
pt[0][1].x=cvRandInt(&rng)% width3 - width;
pt[0][1].y=cvRandInt(&rng)% height3 - height;
pt[0][2].x=cvRandInt(&rng)% width3 - width;
pt[0][2].y=cvRandInt(&rng)% height3 - height;
pt[1][0].x=cvRandInt(&rng)% width3 - width;
pt[1][0].y=cvRandInt(&rng)% height3 - height;
pt[1][1].x=cvRandInt(&rng)% width3 - width;
pt[1][1].y=cvRandInt(&rng)% height3 - height;
pt[1][2].x=cvRandInt(&rng)% width3 - width;
pt[1][2].y=cvRandInt(&rng)% height3 - height;
cvFillPoly( image, pt, arr,2, random_color(&rng), line_type, 0 );
cvShowImage(wndnamed,image);
cvWriteFrame (vw,image);
cvWaitKey(DELAY);
}
for (i = 0; i< NUMBER; i++)
{
pt1.x=cvRandInt(&rng) %width3 - width;
pt1.y=cvRandInt(&rng) %height3 - height;
cvCircle( image, pt1,cvRandInt(&rng)%300, random_color(&rng),
cvRandInt(&rng)%10-1,line_type, 0 );
cvShowImage(wndnamed,image);
cvWriteFrame (vw,image);
cvWaitKey(DELAY);
}
for (i = 1; i< NUMBER; i++)
{
pt1.x=cvRandInt(&rng) %width3 - width;
pt1.y=cvRandInt(&rng) %height3 - height;
cvInitFont( &font,cvRandInt(&rng) % 8,
(cvRandInt(&rng)%100)*0.05+0.1,(cvRandInt(&rng)%100)*0.05+0.1,
(cvRandInt(&rng)%5)*0.1,cvRound(cvRandInt(&rng)%10), line_type );
cvPutText( image, "Ilove zjq!", pt1, &font, random_color(&rng));
cvShowImage(wndnamed,image);
cvWriteFrame(vw,image);
cvWaitKey(DELAY);
}
cvInitFont( &font, CV_FONT_HERSHEY_COMPLEX,3, 3, 0.0, 5, line_type );
cvGetTextSize( "OpenCVforever!", &font, &text_size, &ymin );
pt1.x = (width -text_size.width)/2-80;
pt1.y = (height +text_size.height)/2-100;
image2 = cvCloneImage(image);
pt_zhb.x=pt1.x;
pt_zhb.y=pt1.y+300;
for( i = 0; i < 255; i++ )
{
cvSubS( image2,cvScalarAll(i), image, 0 );
cvPutText( image,"OpenCV forever!", pt1, &font, CV_RGB(255,i,i));
cvPutText( image,"Made By ZhengHB!", pt_zhb, &font, CV_RGB(255,i,i));
cvShowImage(wndnamed,image);
cvWriteFrame(vw,image);
cvWaitKey(DELAY);
}
// Wait for a key stroke; the samefunction arranges events processing
cvReleaseVideoWriter (&vw);
cvWaitKey(0);
cvReleaseImage(&image);
cvReleaseImage(&image2);
cvDestroyWindow(wndnamed);
}
}
from:http://blog.csdn.net/nupt123456789/article/details/7100125
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