CMemAllocator Class

Microsoft DirectShow 9.0

CMemAllocator Class

Implements an allocator that supports the IMemAllocator interface.

This class derives from CBaseAllocator. For more information about allocators, refer to the documentation for CBaseAllocator.

Requirements

**  Header:** Declared in Amfilter.h; include Streams.h.

**  Library:** Use Strmbase.lib (retail builds) or Strmbasd.lib (debug builds).

Protected Member Variables
m_pBuffer	Pointer to the memory block that contains the buffers.
Protected Methods
Free	Placeholder method; called during a decommit operation.
ReallyFree	Releases the memory for the buffers.
Alloc	Allocates memory for the buffers.
Public Methods
CMemAllocator	Constructor method.
~CMemAllocator	Destructor method.
CreateInstance	Creates a new instance of the CMemAllocator class.
IMemAllocator Methods
SetProperties	Specifies the number of buffers to allocate and the size of each buffer.