CMediaSample.GetMediaTime 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]
The GetMediaTime method retrieves the media times for this sample. This method implements the IMediaSample::GetMediaTime method.
Syntax
HRESULT GetMediaTime(
LONGLONG *pStart,
LONGLONG *pEnd
);
Parameters
-
pStart
-
Pointer to a variable that receives the media start time.
-
pEnd
-
Pointer to a variable that receives the media stop time.
Return value
Returns one of the HRESULT values shown in the following table.
| Return code | Description |
|---|---|
|
Success. |
|
No media times were set for this sample. |
Remarks
The CMediaSample::m_MediaEnd member variable specifies an offset from CMediaSample::m_MediaStart, but the value received by the pEnd parameter is an absolute media time, calculated as m_MediaStart + m_MediaEnd.
For information about media times, see Time and Clocks in DirectShow.
Requirements
| Requirement | Value |
|---|---|
| Header |
|
| Library |
|