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IBasicVideo::get_AvgTimePerFrame method

The get_AvgTimePerFrame method retrieves the average time between successive frames.

Syntax


HRESULT get_AvgTimePerFrame(
  [out]  REFTIME *pAvgTimePerFrame
);

Parameters

pAvgTimePerFrame [out]

Pointer to a variable of type REFTIME that receives the average frame time, in seconds.

Return value

Returns an HRESULT value.

Remarks

This method returns the authored time per frame. This value is typically set by the source filter, which obtains it from information in the video stream itself. This value is not necessarily equal to the actual time per frame at which the video is rendered.

To retrieve the actual frame rate during playback, use the IQualProp::get_AvgFrameRate. For more information on actual versus authored frame rates, see the Remarks section for the VIDEOINFOHEADER structure.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Control.h (include Dshow.h)

Library

Strmiids.lib

See also

Error and Success Codes
IBasicVideo Interface

 

 

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