IMediaObject::GetOutputStreamInfo 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 GetOutputStreamInfo method retrieves information about an output stream; for example, whether the stream is discardable, and whether it uses a fixed sample size. This information never changes.
Syntax
HRESULT GetOutputStreamInfo(
DWORD dwOutputStreamIndex,
[out] DWORD *pdwFlags
);
Parameters
dwOutputStreamIndex
Zero-based index of an output stream on the DMO.
[out] pdwFlags
Pointer to a variable that receives a bitwise combination of zero or more DMO_OUTPUT_STREAM_INFO_FLAGS flags.
Return value
Returns an HRESULT value. Possible values include those in the following table.
| Return code | Description |
|---|---|
|
Invalid stream index |
|
NULL pointer argument |
|
Success |
Requirements
| Target Platform | Windows |
| Header | mediaobj.h (include Dmo.h) |
| Library | Dmoguids.lib |