IStreamSample::GetSampleTimes (Windows Embedded CE 6.0)
1/6/2010
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.
Syntax
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 Value
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
| Windows Embedded CE | Windows CE 2.12 and later |
| Note | Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements For more information, see Setting Up the Build Environment, Version 2.12 requires DXPAK 1.0 or later |