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4/8/2010
The majority of classes in the DirectShow class library implement COM interfaces. The following list shows how the classes can be categorized:
- Filter base classes implement the
IBaseFilterinterface, and include
CBaseFilterand classes derived from it.
- Pin classes implement the
IPininterface, and include
CBasePinand
derived classes.
- Enumerator classes include
CEnumPinsand
CEnumMediaTypes.
- Transport base classes include
CMediaSample,
CBaseAllocator,
CMemAllocator, and their derived classes. These classes share
memory between pins, and pass media samples using that shared
memory.
- Control and position classes include
CBaseFilter,
CMediaPosition,
CMediaControl,
CBaseMediaFilter,
CSourceSeeking, and
CBaseStreamControl.
- Clock base classes include
CBaseReferenceClockand
CSystemClock.
This topic contains the following subtopics.