NukeDownstream    426 modules/videoio/src/cap_dshow.cpp         void NukeDownstream(IBaseFilter *pBF);
NukeDownstream    849 modules/videoio/src/cap_dshow.cpp                         NukeDownstream(pininfo.pFilter);
NukeDownstream    968 modules/videoio/src/cap_dshow.cpp     if( (pVideoInputFilter) )NukeDownstream(pVideoInputFilter);