Multimedia Streaming Component Objects
This article provides a table that describes the various components that Microsoft® DirectShow® supports. These objects support the multimedia streaming interfaces. This article also includes a diagram that shows the hierarchy of component objects.
This article contains the following sections.
Component Objects Table
This section describes the various components that are supported by DirectShow.
| Object | Description | Interfaces supported |
|---|---|---|
| CLSID_AMMultiMediaStream | DirectShow implementation of multimedia stream. | IAMMultiMediaStream, IMultiMediaStream |
| CLSID_MediaStreamFilter | Provides multimedia streaming functionality for the CLSID_AMMultiMediaStream object through the IAMMultiMediaStream interface. | IBaseFilter |
| CLSID_AMDirectDrawStream | Microsoft® DirectDraw® media stream that can be added to a DirectShow multimedia stream. | IAMMediaStream, IMediaStream, IDirectDrawMediaStream, IPin, IMemInputPin |
| Samples created by the DirectDraw stream. | IStreamSample, IDirectDrawStreamSample, IMediaSample | |
| CLSID_ AMMediaTypeStream | Can create media samples for any DirectShow-supported data type | IAMMediaStream, IMediaStream, IPin, IMemInputPin |
| Samples created by the CLSID_ AMMediaTypeStream object | IStreamSample, IMediaSample, IMediaSample2 | |
| CLSID_AMAudioData | Implementation of IAudioData audio container object | IAudioData |
Object References Diagram
The hierarchy of objects creates some interesting circular references between the DirectShow objects. The following diagram shows all the objects and their references. Strong references (those that increment the referenced object) are indicated by solid lines. Weak references (those that do not AddRef the referenced object) are indicated by a dotted line.
Samples hold strong references to the multimedia stream object, while the media streams do not.
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