IMediaObject::Flush method (mediaobj.h)
[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 Flush method flushes all internally buffered data.
Syntax
HRESULT Flush();
Return value
Returns S_OK if successful. Otherwise, returns an HRESULT value indicating the cause of the error.
Remarks
The DMO performs the following actions when this method is called:
- Releases any IMediaBuffer references it holds.
- Discards any values that specify the time stamp or sample length for a media buffer.
- Reinitializes any internal states that depend on the contents of a media sample.
When the method returns, every input stream accepts data. Output streams cannot produce any data until the application calls the IMediaObject::ProcessInput method on at least one input stream.
Requirements
| Target Platform | Windows |
| Header | mediaobj.h (include Dmo.h) |
| Library | Dmoguids.lib |