CLSID              79 compat/avisynth/windowsPorts/basicDataTypeConversions.h typedef CLSID* LPCLSID;
CLSID             269 libavdevice/dshow_capture.h long          WINAPI libAVFilter_GetClassID     (libAVFilter *, CLSID *);
CLSID              30 libavdevice/dshow_filter.c libAVFilter_GetClassID(libAVFilter *this, CLSID *id)