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Receives notification of which allocator will be used by the connected output pin.
HRESULT NotifyAllocator( IMemAllocator * pAllocator, BOOL bReadOnly );
Parameters
- pAllocator
- Pointer to the IMemAllocatorobject to use. This might or might not be the same CTransInPlaceInputPinobject that the input pin provided in the CTransInPlaceInputPin::GetAllocatormember function (the output pin could provide its own allocator).
- bReadOnly
- Flag to indicate if the samples from this allocator are
read-only.
Return Values
Returns NOERROR if successful. Returns E_POINTER if the pointer is invalid. Otherwise, returns an error due to calling CTransInPlaceOutputPin::ReceiveAllocator.
Remarks
This member function overrides the CBaseInputPin::NotifyAllocatormember function and implements the IMemInputPin::NotifyAllocatormethod. This member function remembers the allocator and passes it to the output pin because they both must share the same allocator.