Smart Tee Filter (Compact 2013)

3/26/2014

The Smart Tee filter is used in video capture graphs to split the video stream into a preview stream and a capture stream. This is done without any additional data copying. The output pins support whatever media types are supported on the downstream connection.

The Smart Tee filter is useful when a video capture filter does not provide separate pins for capture and preview. The Smart Tee filter delivers preview data only if doing so does not hurt capture performance. It also removes the time stamps from the preview stream. The capture graph builder automatically inserts the Smart Tee filter when needed.

The following table shows the filter properties.

Filter property

Description

Filter Interfaces

IBaseFilter

Input Pin Media Types

MEDIATYPE_NULL, MEDIASUBTYPE_NULL

Input Pin Interfaces

IMemInputPin, IPin, IQualityControl

Output Pin Media Types

MEDIATYPE_Video, MEDIASUBTYPE_NULL

Output Pin Interfaces

IAMStreamControl, IPin, IQualityControl

Filter CLSID

CLSID_SmartTee

Executable

qcap.dll

Merit

0×0

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