getFPS            556 modules/videoio/src/cap_dshow.cpp         double getFPS(int deviceID) const;
getFPS           3168 modules/videoio/src/cap_dshow.cpp         return g_VI.getFPS(m_index);
getFPS           3227 modules/videoio/src/cap_dshow.cpp         if (fps != g_VI.getFPS(m_index))
getFPS           3246 modules/videoio/src/cap_dshow.cpp                 int fps = static_cast<int>(g_VI.getFPS(m_index));