IWMWriter::SetInputProps method (wmsdkidl.h)

Article
4/26/2023

[The feature associated with this page, Windows Media Format 11 SDK, is a legacy feature. It has been superseded by Source Reader and Sink Writer. Source Reader and Sink Writer have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use Source Reader and Sink Writer instead of Windows Media Format 11 SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The SetInputProps method specifies the media properties of an input stream.

Syntax

HRESULT SetInputProps(
  [in] DWORD              dwInputNum,
  [in] IWMInputMediaProps *pInput
);

Parameters

[in] dwInputNum

DWORD containing the input number.

[in] pInput

Pointer to an IWMInputMediaProps interface. See Remarks.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code	Description
S_OK	The method succeeded.
E_INVALIDARG	dwInputNum is greater than the highest index number.
E_OUTOFMEMORY	There is not enough available memory.
E_UNEXPECTED	The method failed for an unspecified reason.

Remarks

Manipulating the IWMInputMediaProps object has no effect on the writer until the application calls this method to configure the input.

Specify NULL for pInput if the input contains compressed samples that will be written directly to the new stream (using IWMWriterAdvanced::WriteStreamSample) without being recompressed.

Requirements


Minimum supported client	Windows 2000 Professional [desktop apps only],Windows Media Format 7 SDK, or later versions of the SDK
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	wmsdkidl.h (include Wmsdk.h)
Library	Wmvcore.lib; WMStubDRM.lib (if you use DRM)