CTransformOutputPin::DecideBufferSize (Windows CE 5.0)
Determines the number and size of buffers required.
HRESULT DecideBufferSize(IMemAllocator* pAlloc,ALLOCATOR_PROPERTIES* ppropInputRequest);
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 overrides the CBaseOutputPin::DecideBufferSize member function and calls the pure virtual CTransformFilter::DecideBufferSize member function, which your derived class must override and implement.
This member function is called from the CBaseOutputPin class during the connection process.
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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