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Determines the number and size of buffers required.
HRESULT DecideBufferSize( IMemAllocator * pAlloc, ALLOCATOR_PROPERTIES * ppropInputRequest );
Parameters
- pAlloc
- Allocator assigned to the transfer.
- ppropInputRequest
- Requested allocator properties for count, size, and alignment,
as specified by the
ALLOCATOR_PROPERTIESstructure.
Return Values
Returns an HRESULTvalue.
Remarks
This member function overrides the CBaseOutputPin::DecideBufferSizemember function and calls the pure virtual CTransformFilter::DecideBufferSizemember function, which your derived class must override and implement. This member function is called from the CBaseOutputPinclass during the connection process.