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ICaptureGraphBuilder::SetOutputFileName

  • Artículo
 
Microsoft DirectShow 9.0

ICaptureGraphBuilder::SetOutputFileName

Creates the rendering section of the filter graph, which will save bits to disk with the specified file name.

Syntax

  HRESULT SetOutputFileName(
    const GUID *pType,
    LPCOLESTR lpwstrFile,
    IBaseFilter **ppf,
    IFileSinkFilter **pSink
);

Parameters

pType

[in] Pointer to a GUID representing the media subtype. Must be &MEDIASUBTYPE_Avi.

lpwstrFile

[in] Pointer to a wide-character string containing the output file name.

ppf

[out] Address of a pointer to an IBaseFilter interface representing the multiplexer filter. This method increments the reference count on the IBaseFilter interface so you must decrement the reference count by using the Release method on this parameter when done using the filter.

pSink

[out] Address of a pointer to an IFileSinkFilter interface representing the file writer. This method increments the reference count on the IFileSinkFilter interface so you must decrement the reference count using Release when done using the filter.

Return Value

Returns an HRESULT value. Possible values include the following.

Value Description
E_FAIL Failure.
E_INVALIDARG Invalid argument. Audio-Video Interleaved (AVI) is the only supported output format.
E_OUTOFMEMORY Out of memory.
E_POINTER Null pointer argument.
E_UNEXPECTED Unexpected error occurred.
NOERROR Success.
S_OK Instance of the AVI multiplexer filter was successfully created.

Remarks

This method inserts the multiplexer and the file writer into the filter graph and calls IFileSinkFilter::SetFileName to set the output file name.

You can use the ppf parameter returned by this method as the pfRenderer parameter in calls to RenderStream.

You can use the pSink parameter from this method in a call to SetFileName to change the file name set by ICaptureGraphBuilder::SetOutputFileName.

Requirements

Reference: Dshow.h.

Library: Quartz.dll.

See Also