IMediaObject::GetInputStatus
The GetInputStatus method queries whether an input stream can accept more input data.
Syntax
HRESULT GetInputStatus(
DWORD dwInputStreamIndex,
DWORD* dwFlags
);
Parameters
dwInputStreamIndex
Zero-based index of an input stream on the DMO.
dwFlags
[out] Pointer to a variable that receives either zero or DMO_INPUT_STATUSF_ACCEPT_DATA.
Return Value
Returns an HRESULT value. Possible values include those in the following table.
| Return Code | Description |
| DMO_E_INVALIDSTREAMINDEX | Invalid stream index |
| S_OK | Success |
Remarks
If the input stream will accept more data, the method returns the DMO_INPUT_STATUSF_ACCEPT_DATA flag in the dwFlags parameter. Otherwise, it sets this parameter to zero. If the stream will accept more data, the application can call the IMediaObject::ProcessInput method.
The status of an input stream can change only as the result of one of the following method calls.
| Method | Description |
| IMediaObject::Discontinuity | Signals a discontinuity on the specified input stream. |
| IMediaObject::Flush | Flushes all internally buffered data. |
| IMediaObject::ProcessInput | Delivers a buffer to the specified input stream. |
| IMediaObject::ProcessOutput | Generates output from the current input data. |
Requirements
Header: Declared in Mediaobj.h; include Dmo.h
Library: Dmoguids.lib.
See Also