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IWMSServer::get_MediaParsers

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IWMSServer::get_MediaParsers

The get_MediaParsers method retrieves an IWMSPlugins interface containing a collection of media parser plug-ins.

Syntax

  HRESULT get_MediaParsers(
  IWMSPlugins**  pVal
);

Parameters

pVal

[out] Pointer to a pointer to an IWMSPlugins interface containing the media parser plug-in collection.

Return Values

If the method succeeds, it returns S_OK. If it fails, it returns an HRESULT error code.

Return code Number Description
E_POINTER 0x80004003 Indicates that pVal is a NULL pointer argument.

Remarks

This method calls AddRef internally. To avoid memory leaks, you must call Release when you are finished using the interface.

You can use media parser plug-ins to format and interpret the data retrieved from the storage system by data source plug-ins.

The following system plug-ins can be accessed using the get_MediaParsers method.

Plug-in Description
WMS JPEG Media Parser Enables the Windows Media server to stream JPEG image files.
WMS MP3 Media Parser Enables the Windows Media server to stream MPEG Layer-3 audio (MP3) files.
WMS Windows Media Parser Enables the Windows Media server to stream Windows Media files with the following extensions: .asf, .wma, .wmv, and .wm.

Example Code

#include <windows.h>
#include "wmsserver.h"

// Declare variables and interfaces.
IWMSServer      *pServer;
IWMSPlugins     *pPlugins;

HRESULT         hr;

// Initialize the COM library and retrieve a pointer
// to an IWMSServer interface.
hr = CoInitialize(NULL);
hr = CoCreateInstance(CLSID_WMSServer,
                      NULL,
                      CLSCTX_ALL,
                      IID_IWMSServer,
                      (void **)&pServer);
if (FAILED(hr)) goto EXIT;

// Retrieve a pointer to an IWMSPlugins interface
// containing media parser plug-ins.
hr = pServer->get_MediaParsers(&pPlugins);
if (FAILED(hr)) goto EXIT;

EXIT:
    // TODO: Release temporary COM objects and uninitialize COM.

Requirements

Header: wmsserver.h.

Library: WMSServerTypeLib.dll.

Platform: Windows Server 2003 family, Windows Server 2008 family.

See Also

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