don't use constructors for C API structures

modules/video/src/compat_video.cpp

@@ -56,7 +56,7 @@ cvMeanShift( const void* imgProb, CvRect windowIn,
 
     if( comp )
     {
-        comp->rect = window;
+        comp->rect = cvRect(window);
         comp->area = cvRound(cv::sum(img(window))[0]);
     }
 
@@ -76,13 +76,13 @@ cvCamShift( const void* imgProb, CvRect windowIn,
 
     if( comp )
     {
-        comp->rect = window;
+        comp->rect = cvRect(window);
         cv::Rect roi = rr.boundingRect() & cv::Rect(0, 0, img.cols, img.rows);
         comp->area = cvRound(cv::sum(img(roi))[0]);
     }
 
     if( box )
-        *box = rr;
+        *box = cvBox2D(rr);
 
     return rr.size.width*rr.size.height > 0.f ? 1 : -1;
 }

modules/video/test/test_camshift.cpp

@@ -435,7 +435,7 @@ void CV_MeanShiftTest::run_func(void)
 int CV_MeanShiftTest::validate_test_results( int /*test_case_idx*/ )
 {
     int code = cvtest::TS::OK;
-    CvPoint2D32f c;
+    Point2f c;
     double m = MAX(box0.size.width, box0.size.height), delta;
 
     if( cvIsNaN(comp.area) || cvIsInf(comp.area) || comp.area <= 0 )

modules/video/test/test_optflowpyrlk.cpp

@@ -120,7 +120,7 @@ void CV_OptFlowPyrLKTest::run( int )
     /* read first image */
     sprintf( filename, "%soptflow/%s", ts->get_data_path().c_str(), "rock_1.bmp" );
     imgI2 = cv::imread( filename, cv::IMREAD_UNCHANGED );
-    imgI = imgI2;
+    imgI = cvIplImage(imgI2);
 
     if( imgI2.empty() )
     {
@@ -132,7 +132,7 @@ void CV_OptFlowPyrLKTest::run( int )
     /* read second image */
     sprintf( filename, "%soptflow/%s", ts->get_data_path().c_str(), "rock_2.bmp" );
     imgJ2 = cv::imread( filename, cv::IMREAD_UNCHANGED );
-    imgJ = imgJ2;
+    imgJ = cvIplImage(imgJ2);
 
     if( imgJ2.empty() )
     {