CVideoTransformFilter::AlterQuality
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4/8/2010
Receives a quality-control notification and provides an opportunity to alter the quality of the media stream.
Syntax
virtual HRESULT AlterQuality(
Quality q
);
Parameters
- q
Quality-control notification message.
Return Value
This member function returns E_FAIL by default.
Remarks
This member function overrides the CTransformFilter::AlterQuality member function.
It is called by the CTransformOutputPin::Notify member function before calling the CBaseInputPin::PassNotify member function to pass the quality control message upstream.
This function sets the m_itrLate data member to the value Quality structure's Late member so the filter can determine whether to skip frames.
It returns E_FAIL so that the renderer downstream will continue to handle quality control.
Requirements
| Windows Embedded CE | Windows CE 2.12 and later |
| Note | Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements For more information, see Setting Up the Build Environment, Version 2.12 requires DXPAK 1.0 or later |