CTransInPlaceFilter::DecideBufferSize (Windows Embedded CE 6.0)
1/6/2010
Determines the size of the transport buffer.
Syntax
HRESULT DecideBufferSize(
IMemAllocator* pAlloc,
ALLOCATOR_PROPERTIES* pProperties
);
Parameters
- pAlloc
Pointer to the IMemAllocator object used by the output pin.
- pProperties
Requested allocator properties for count, size, and alignment, as specified by the ALLOCATOR_PROPERTIES structure.
Return Value
Returns NOERROR if successful; otherwise, returns an HRESULT value indicating the error.
HRESULT can be one of the following standard constants, or other values not listed.
| Value | Description |
|---|---|
E_FAIL |
Failure. |
E_POINTER |
Null pointer argument. |
E_INVALIDARG |
Invalid argument. |
E_NOTIMPL |
Method is not supported. |
Remarks
This member function overrides the CTransformFilter::DecideBufferSize member function. It is called when the filter must provide its own allocator. Allocator requirements are obtained from the filter's input pin and passed to the output pin.
Requirements
| Windows Embedded CE | Windows CE 2.12 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 |