get_DevSyncOffset
Collapse the table of content
Expand the table of content

IQualProp::get_DevSyncOffset method

The get_DevSyncOffset method retrieves the average time difference between when the video frames should have been displayed and when they actually were. This method is the same as the IQualProp::get_AvgSyncOffset method except that the value returned is calculated as a standard deviation rather than as a simple average.

Syntax


HRESULT get_DevSyncOffset(
   int *piDev
);

Parameters

piDev

Pointer to a value denoting the accuracy of the video frames displayed.

Return value

Returns an HRESULT value.

Remarks

When playing video from networks, the presentation can often be disrupted by network glitches. For this reason, expressing the accuracy of video frames by a simple average is inappropriate. Looking at a standard deviation provides a better idea of the overall accuracy.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Amvideo.h (include Dshow.h)

Library

Strmiids.lib

See also

Error and Success Codes
IQualProp Interface

 

 

Show:
© 2016 Microsoft