IMemInputPin::GetAllocatorRequirements (Windows CE 5.0)
This optional method is used to suggest specific alignment or prefix requirements to an upstream filter.
HRESULT GetAllocatorRequirements(ALLOCATOR_PROPERTIES* pProps);
Parameters
- pProps
[in] ALLOCATOR_PROPERTIES structure containing the required size, count, and alignment of the allocator.
Return Values
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
DirectShow applications and DirectShow filters have different include file and link library requirements.
For more information, see Setting Up the Build Environment.
Pocket PC: Windows Mobile 5.0 and later
Smartphone: Windows Mobile 5.0 and later
OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
See Also
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