Notes
L’accès à cette page nécessite une autorisation. Vous pouvez essayer de vous connecter ou de modifier des répertoires.
L’accès à cette page nécessite une autorisation. Vous pouvez essayer de modifier des répertoires.
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