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This method retrieves information about an input stream, such as any restrictions on the number of samples per buffer, and whether the stream performs a lookahead on the input data. This information never changes.
HRESULT GetInputStreamInfo(DWORDdwInputStreamIndex,DWORD* pdwFlags);
Parameters
- dwInputStreamIndex
Zero-based index of an input stream on the DMO. - pdwFlags
[out] Pointer to a variable that receives a bitwise combination of zero or more DMO_INPUT_STREAM_INFO_FLAGS flags.
Return Values
Returns an HRESULT value. Possible values include the following.
| Value | Description |
|---|---|
| S_OK | Success |
| DMO_E_INVALIDSTREAMINDEX | Invalid stream index |
| E_POINTER | NULL pointer argument |
Remarks
The DMO_INPUT_STREAMF_HOLDS_BUFFERS flag indicates that the DMO performs a lookahead on the incoming data.
The application must be sure to allocate sufficient buffers for the DMO to process the input. Call the IMediaObject::GetInputSizeInfo method to determine the buffer requirements.
Requirements
OS Versions: Windows CE .NET 4.1 and later.
Header: Dmo.h.
Link Library: Dmoguid.lib.
See Also
IMediaObject | IMediaObject::GetInputSizeInfo | DMO_INPUT_STREAM_INFO_FLAGS | DMO_INPUT_STREAMF_HOLDS_BUFFERS
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