IAMVideoControl::GetCurrentActualFrameRate method (strmif.h)

Article
10/13/2021
2 minutes to read

The GetCurrentActualFrameRate method retrieves the actual frame rate, expressed as a frame duration in 100-nanosecond units. USB (Universal Serial Bus) and IEEE 1394 cameras may provide lower frame rates than requested because of bandwidth availability. This is only available during video streaming.

Syntax

HRESULT GetCurrentActualFrameRate(
  [in]  IPin     *pPin,
  [out] LONGLONG *ActualFrameRate
);

Parameters

[in] pPin

Pointer to the pin to retrieve the frame rate from.

[out] ActualFrameRate

Pointer to the frame rate in frame duration in 100-nanosecond units.

Return value

Returns an HRESULT value that depends on the implementation of the interface.

Requirements


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