CLSID StringToCLSID(const std::wstring &str)
//------------------------------------------
{
CLSID clsid = CLSID();
std::vector<OLECHAR> tmp(str.c_str(), str.c_str() + str.length() + 1);
if(::CLSIDFromString(&tmp[0], &clsid) != S_OK)
{
return CLSID();
}
return clsid;
}
bool IsCLSID(const std::wstring &str)
//-----------------------------------
{
CLSID clsid = CLSID();
std::vector<OLECHAR> tmp(str.c_str(), str.c_str() + str.length() + 1);
return (::CLSIDFromString(&tmp[0], &clsid) == S_OK);
}
CLSID CodecInfo::__GetCodecClass(UINT32 unIndex, PROPID propId)
{
PropertyVariant propVariant = m_codecLibrary.GetMethodProperty(
unIndex, propId);
switch (propVariant.vt)
{
case VT_BSTR:
return *reinterpret_cast<const GUID *>(propVariant.bstrVal);
case VT_EMPTY:
return CLSID();
default:
throw LibraryException("Cannot get the codec class.");
}
}
