IAMTimelineSrc::SetMediaLength 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 SetMediaLength method specifies the duration of the source file.
Syntax
HRESULT SetMediaLength(
REFERENCE_TIME Length
);
Parameters
-
Length
-
Media length, in 100-nanosecond units.
Return value
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Remarks
You can avoid potential rendering errors by setting the media length before you set the media stop time. When you set the media stop time, DES checks it against the media length.
This method does not validate the Length parameter, but the value must equal the actual duration of the source file. Obtain the source file duration by calling IMediaDet::get_StreamLength.
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 |
|
| Library |
|
See also