Null Renderer Filter

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

Note

[Deprecated. This API may be removed from future releases of Windows.]

 

The Null Renderer filter is a renderer that discards every sample it receives, without displaying or rendering the sample data.

Label	Value
Filter interfaces	IBaseFilter, IMediaPosition, IMediaSeeking
Input pin media types	Any media type
Input pin interfaces	IMemInputPin, IPin, IQualityControl
Output pin media types	Not applicable.
Output pin interfaces	Not applicable.
Filter CLSID	CLSID_NullRenderer
Property Page CLSID	No property page.
Executable	Qedit.dll
Merit	MERIT_DO_NOT_USE
Filter Category	CLSID_LegacyAmFilterCategory

 

Remarks

Use this filter when an output pin in the graph requires a downstream connection, but you do not wish to render the data from that pin. By connecting the output pin to the Null Renderer, you complete the connection without rendering the data.

Even though this filter does not render any samples, it does wait for each sample's presentation time before discarding the sample. Therefore, the graph will run at the normal rate. If you want the graph the run as quickly as possible, set the reference clock to NULL. For more information, see Setting the Graph Clock.

Requirements

Requirement	Value
Header	Qedit.h

See also

DirectShow Editing Services Objects