IAMTimelineSrc::FixMediaTimes 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 FixMediaTimes method rounds the specified time values to the nearest frame boundary, as defined by the output frame rate. In general, applications do not need to call this method.

Syntax

HRESULT FixMediaTimes(
   REFERENCE_TIME *pStart,
   REFERENCE_TIME *pStop
);

Parameters

pStart

Pointer to a variable that contains the start time, in 100-nanosecond units. If the call succeeds, this variable is set to the rounded time.

pStop

Pointer to a variable that contains the stop time, in 100-nanosecond units. If the call succeeds, this variable is set to the rounded time.

Return value

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

Remarks

This method is similar to the IAMTimelineObj::FixTimes method, but it preserves the original ratio of media times and timeline times. Just rounding the times to the nearest frame boundary could distort this ratio.

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

IAMTimelineSrc Interface

Error and Success Codes