CBaseVideoRenderer::GetStdDev (Windows Embedded CE 6.0)
1/6/2010
Estimates the standard deviation in milliseconds between when each frame is due and when it is actually rendered, for per-frame statistics.
Syntax
HRESULT GetStdDev(
int nSamples,
int* piResult,
LONGLONG llSumSq,
LONGLONG iTot
);
Parameters
- nSamples
Integer value that contains the number of video samples received by the video renderer.
- piResult
Pointer to an integer value that will contain the standard deviation.
- llSumSq
Value that represents the standard deviation, in milliseconds, of all rendered video samples. The lower the value, the more consistent the rendering.
- iTot
Value that represents the mean value, in milliseconds, between the stamped time and rendered time for all rendered video samples.
Return Value
Returns NOERROR.
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 |