CTransformFilter::DecideBufferSize (Windows CE 5.0)
Sets the number and size of buffers required for the transfer.
virtual HRESULT DecideBufferSize(IMemAllocator* pAlloc,ALLOCATOR_PROPERTIES* ppropInputRequest)PURE;
Parameters
- pAlloc
Allocator assigned to the transfer. - ppropInputRequest
Requested allocator properties for count, size, and alignment, as specified by the ALLOCATOR_PROPERTIES structure.
Return Values
Returns an HRESULT value.
Remarks
This member function is called by the CTransformOutputPin::DecideBufferSize member function.
Override and implement this member function to call the CMemAllocator::SetProperties member function with appropriate values for the output stream.
This call might fail if the allocator cannot satisfy the request.
Requirements
DirectShow applications and DirectShow filters have different include file and link library requirements.
For more information, see Setting Up the Build Environment.
OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
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