removed highgui video tests execution on macos; also minor code changes

modules/highgui/test/test_framecount.cpp

@@ -55,6 +55,9 @@ public:
 
 void CV_FramecountTest::run(int)
 {
+#if defined WIN32 || (defined __linux__ && !defined ANDROID)
+#if !defined HAVE_GSTREAMER || defined HAVE_GSTREAMER_APP
+
     const int time_sec = 5, fps = 25;
 
     const string ext[] = {"avi", "mov", "mp4", "mpg", "wmv"};
@@ -123,6 +126,9 @@ void CV_FramecountTest::run(int)
 
     ts->printf(cvtest::TS::LOG, "\nSuccessfull experiments: %d (%d%%)\n", n-failed, (n - failed)*100/n);
     ts->printf(cvtest::TS::LOG, "Failed experiments: %d (%d%%)\n", failed, failed*100/n);
+
+#endif
+#endif
 }
 
 TEST(HighguiFramecount, regression) {CV_FramecountTest test; test.safe_run();}