IQualProp interface

The IQualProp interface provides methods for retrieving performance information from video renderers. The values returned through the interface are reset each time the filter is stopped. The Video Renderer filter and the Full Screen Renderer filter expose this interface.

Applications can use this interface to retrieve video performance information.

Methods

The IQualProp interface has these methods.

Method Description
IQualProp::get_AvgFrameRate The get_AvgFrameRate method retrieves the actual average frame rate since streaming started.
IQualProp::get_AvgSyncOffset The get_AvgSyncOffset method retrieves the average time difference between when the video frames should have been displayed and when they actually were.
IQualProp::get_DevSyncOffset The get_DevSyncOffset method retrieves the average time difference between when the video frames should have been displayed and when they actually were.
IQualProp::get_FramesDrawn The get_FramesDrawn method retrieves the number of frames actually drawn since streaming started.
IQualProp::get_FramesDroppedInRenderer The get_FramesDroppedInRenderer method retrieves the number of frames dropped by the renderer.
IQualProp::get_Jitter The get_Jitter method gets the jitter (variation in time) between successive frames delivered to the video renderer.

Requirements

   
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header amvideo.h (include Dshow.h)

See also

Interfaces