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Sets the number and size of buffers required for the transfer.
virtual HRESULT DecideBufferSize( IMemAllocator * pAlloc, ALLOCATOR_PROPERTIES * ppropInputRequest ) PURE;
Parameters
Return Values
Returns an HRESULTvalue.
Remarks
This member function is called by the CTransformOutputPin::DecideBufferSizemember function. Override and implement this member function to call the CMemAllocator::SetPropertiesmember function with appropriate values for the output stream. This call might fail if the allocator cannot satisfy the request.