IStreamSample::GetSampleTimes (Windows CE 5.0)
This method retrieves the current sample's start and end times. If the sample is updating, this method returns the times after the update completes.
HRESULT GetSampleTimes(STREAM_TIME* pStartTime,STREAM_TIME* pEndTime,STREAM_TIME* pCurrentTime);
Parameters
- pStartTime
[out] Pointer to a STREAM_TIME value that will contain the sample's start time. - pEndTime
[out] Pointer to a STREAM_TIME value that will contain the sample's end time. - pCurrentTime
[out] Pointer to a STREAM_TIME value that will contain the media stream's current media time.
Return Values
Returns S_OK if successful or E_POINTER if one of the parameters is invalid.
Remarks
For streams that have a clock, the start and end times will be relative to the stream's current time. If the stream does not have a clock, the times are media-relative and the current time will be zero.
The pCurrentTime parameter enables you to conveniently track the media stream's current time, so you do not have to call IMultiMediaStream::GetTime.
Unlike GetTime, however, this method returns S_OK if the stream does not have a clock; GetTime returns S_FALSE.
The value assigned to pCurrentTime is the same as the value produced by the following code fragment.
pSample->GetMediaStream(&pMediaStream);
pMediaStream->GetMultiMediaStream(&pMultiMediaStream);
pMediaStream->Release();
pMultiMediaStream->GetTime(&pCurrentTime);
pMultiMediaStream->Release();
Requirements
DirectShow applications and DirectShow filters have different include file and link library requirements.
For more information, see Setting Up the Build Environment.
OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
See Also
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