CSourceStream.FillBuffer 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 FillBuffer method fills a media sample with data.
Syntax
virtual HRESULT FillBuffer(
IMediaSample *pSample
) = 0;
Parameters
-
pSample
-
Pointer to the sample's IMediaSample interface.
Return value
Returns an HRESULT value. Possible values include those shown in the following table.
| Return code | Description |
|---|---|
|
End of stream |
|
Success |
Remarks
The derived class must implement this method.
The media sample given to this method has no time stamps. The derived class should call the IMediaSample::SetTime method to set the time stamps. If appropriate for the media type, the derived class should also set the media times, by calling the IMediaSample::SetMediaTime method. For more information, see Time and Clocks in DirectShow.
Return S_FALSE at the end of the stream. This causes the CSourceStream class to send the end-of-stream notification and halt the buffer processing loop. See CSourceStream::DoBufferProcessingLoop for more information.
Requirements
| Requirement | Value |
|---|---|
| Header |
|
| Library |
|
See also
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