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Passes requests for allocator requirements downstream.
HRESULT GetAllocatorRequirements( ALLOCATOR_PROPERTIES * pProps );
Parameters
- pProps
-
ALLOCATOR_PROPERTIESstructure containing the required size,
count, and alignment of the allocator.
Return Values
Returns E_NOTIMPL if the filter's output pin is not connected. Otherwise, returns an HRESULTthat indicates whether the allocator properties were successfully received. HRESULTcan be one of the following standard constants, or other values not listed.
E_FAIL Failure. E_POINTER Null pointer argument. E_INVALIDARG Invalid argument. E_NOTIMPL Method isn't supported. S_OK or NOERROR Success. Remarks
This member function overrides the CBaseInputPin::GetAllocatorRequirementsmember function and implements the IMemInputPin::GetAllocatorRequirementsmethod. If the downstream input pin can supply allocator requirements, it does so.