IMFSourceReaderCallback::OnReadSample method (mfreadwrite.h)
Called when the IMFSourceReader::ReadSample method completes.
Syntax
HRESULT OnReadSample(
[in] HRESULT hrStatus,
[in] DWORD dwStreamIndex,
[in] DWORD dwStreamFlags,
[in] LONGLONG llTimestamp,
[in] IMFSample *pSample
);
Parameters
[in] hrStatus
The status code. If an error occurred while processing the next sample, this parameter contains the error code.
[in] dwStreamIndex
The zero-based index of the stream that delivered the sample.
[in] dwStreamFlags
A bitwise OR of zero or more flags from the MF_SOURCE_READER_FLAG enumeration.
[in] llTimestamp
The time stamp of the sample, or the time of the stream event indicated in dwStreamFlags. The time is given in 100-nanosecond units.
[in] pSample
A pointer to the IMFSample interface of a media sample. This parameter might be NULL.
Return value
Returns an HRESULT value. Currently, the source reader ignores the return value.
Remarks
The pSample parameter might be NULL. For example, when the source reader reaches the end of a stream, dwStreamFlags contains the MF_SOURCE_READERF_ENDOFSTREAM flag, and pSample is NULL.
If there is a gap in the stream, dwStreamFlags contains the MF_SOURCE_READERF_STREAMTICK flag, pSample is NULL, and llTimestamp indicates the time when the gap occurred.
This interface is available on Windows Vista if Platform Update Supplement for Windows Vista is installed.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 7, Windows Vista and Platform Update Supplement for Windows Vista [desktop apps | UWP apps] |
| Minimum supported server | Windows Server 2008 R2 [desktop apps | UWP apps] |
| Target Platform | Windows |
| Header | mfreadwrite.h |