IAMTimelineGroup::SetOutputFPS method

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

Note

[Deprecated. This API may be removed from future releases of Windows.]

 

The SetOutputFPS method sets the uncompressed output frame rate for this group.

Syntax

HRESULT SetOutputFPS(
   double FPS
);

Parameters

FPS

Output frame rate for this group, in frames per second. The value cannot equal zero, and cannot have more than seven digits after the decimal place.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

Rendered output from this group runs at the specified frame rate, and all edits on the source material are rounded to the nearest frame boundary, as defined by the frame rate. For best performance, use the same frame rate for all groups, video and audio.

The IAMTimelineGroup::SetSmartRecompressFormat method overwrites the frame rate.

Note

The header file Qedit.h is not compatible with Direct3D headers later than version 7.

 

Note

To obtain Qedit.h, download the Microsoft Windows SDK Update for Windows Vista and .NET Framework 3.0. Qedit.h is not available in the Microsoft Windows SDK for Windows 7 and .NET Framework 3.5 Service Pack 1.

 

Requirements

Requirement	Value
Header	Qedit.h
Library	Strmiids.lib

See also

IAMTimelineGroup Interface

Error and Success Codes