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IMpeg2PsiParser::GetCountOfElementaryStreams method

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[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The implementation of this method is provided as sample code with the DirectShow SDK. It is not a supported DirectShow API.

The GetCountOfElementaryStreams method retrieves the number of elementary streams in a specified program.

Syntax

HRESULT GetCountOfElementaryStreams(
  [in]  WORD wProgramNumber,
  [out] WORD *pwVal
);

Parameters

wProgramNumber [in]

Specifies the program_number field for the program, as given in the PAT.

pwVal [out]

Pointer to a variable that receives the number of elementary streams in the program.

Return value

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

Return code Description
S_OK
 Success.

 

Remarks

Use the GetRecordProgramNumber method to obtain the program number.

See also

IMpeg2PsiParser Interface

IMpeg2PsiParser::GetRecordProgramNumber

PSI Parser Filter Sample