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Optional method to suggest specific alignment or prefix requirements to an upstream filter.
HRESULT GetAllocatorRequirements( ALLOCATOR_PROPERTIES * pProps );
Parameters
- pProps
- [in]
ALLOCATOR_PROPERTIESstructure containing the required size,
count, and alignment of the allocator.
Return Values
Returns an HRESULTvalue. Returns E_NOTIMPL if not implemented.
Remarks
Source filters that insist on their own allocator may use this method downstream to accommodate downstream filters' memory requirements for performance benefits.