IMPEG2StreamIdMap::EnumStreamIdMap method (strmif.h)

Article
07/27/2023

[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 EnumStreamIdMap method returns a collection of all the mapped Stream IDs on this pin.

Syntax

HRESULT EnumStreamIdMap(
  [in] IEnumStreamIdMap **ppIEnumStreamIdMap
);

Parameters

[in] ppIEnumStreamIdMap

IEnumStreamIdMap interface pointer that will be set to the returned collection.

Return value

Returns S_OK if successful. If the method fails, it returns an HRESULT error code.

Remarks

Currently, there is only one stream ID mapped to a given pin, therefore this collection will contain a single item.

Requirements

Requirement	Value
Minimum supported client	Windows XP [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Target Platform	Windows
Header	strmif.h (include Dshow.h)
Library	Strmiids.lib

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