IMemInputPin::GetAllocatorRequirements
A version of this page is also available for
4/8/2010
This optional method is used to suggest specific alignment or prefix requirements to an upstream filter.
Syntax
HRESULT GetAllocatorRequirements(
ALLOCATOR_PROPERTIES* pProps
);
Parameters
- pProps
[in] ALLOCATOR_PROPERTIES structure containing the required size, count, and alignment of the allocator.
Return Value
Returns an HRESULT value. 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.
Requirements
| Windows Embedded CE | Windows CE 2.12 and later |
| Windows Mobile | Pocket PC for Windows Mobile Version 5.0 and later, Smartphone for Windows Mobile Version 5.0 and later |
| Note | Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements For more information, see Setting Up the Build Environment, Version 2.12 requires DXPAK 1.0 or later |