diff -r 000000000000 -r 876b1a06bc25 plugins/multimedia/directshow/dsserviceplugin.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/multimedia/directshow/dsserviceplugin.cpp	Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,183 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore/qstring.h>
+#include <QtCore/qdebug.h>
+#include <QtCore/QFile>
+
+#include "dsserviceplugin.h"
+
+#ifdef QMEDIA_DIRECTSHOW_CAMERA
+#include "dscameraservice.h"
+#endif
+
+#ifdef QMEDIA_DIRECTSHOW_PLAYER
+#include "directshowplayerservice.h"
+#endif
+
+#include <qmediaserviceprovider.h>
+
+
+#ifdef QMEDIA_DIRECTSHOW_CAMERA
+#ifndef _STRSAFE_H_INCLUDED_
+#include <tchar.h>
+#endif
+#include <dshow.h>
+#include <objbase.h>
+#include <initguid.h>
+#pragma comment(lib, "strmiids.lib")
+#pragma comment(lib, "ole32.lib")
+#include <windows.h>
+#endif
+
+QStringList DSServicePlugin::keys() const
+{
+    return QStringList()
+#ifdef QMEDIA_DIRECTSHOW_CAMERA
+            << QLatin1String(Q_MEDIASERVICE_CAMERA)
+#endif
+#ifdef QMEDIA_DIRECTSHOW_PLAYER
+            << QLatin1String(Q_MEDIASERVICE_MEDIAPLAYER)
+#endif
+            ;
+}
+
+QMediaService* DSServicePlugin::create(QString const& key)
+{
+#ifdef QMEDIA_DIRECTSHOW_CAMERA
+    if (key == QLatin1String(Q_MEDIASERVICE_CAMERA))
+        return new DSCameraService;
+#endif
+#ifdef QMEDIA_DIRECTSHOW_PLAYER
+    if (key == QLatin1String(Q_MEDIASERVICE_MEDIAPLAYER))
+        return new DirectShowPlayerService;
+#endif
+
+    //qDebug() << "unsupported key:" << key;
+    return 0;
+}
+
+void DSServicePlugin::release(QMediaService *service)
+{
+    delete service;
+}
+
+QList<QByteArray> DSServicePlugin::devices(const QByteArray &service) const
+{
+#ifdef QMEDIA_DIRECTSHOW_CAMERA
+    if (service == Q_MEDIASERVICE_CAMERA) {
+        if (m_cameraDevices.isEmpty())
+            updateDevices();
+
+        return m_cameraDevices;
+    }
+#endif
+
+    return QList<QByteArray>();
+}
+
+QString DSServicePlugin::deviceDescription(const QByteArray &service, const QByteArray &device)
+{
+#ifdef QMEDIA_DIRECTSHOW_CAMERA
+    if (service == Q_MEDIASERVICE_CAMERA) {
+        if (m_cameraDevices.isEmpty())
+            updateDevices();
+
+        for (int i=0; i<m_cameraDevices.count(); i++)
+            if (m_cameraDevices[i] == device)
+                return m_cameraDescriptions[i];
+    }
+#endif
+    return QString();
+}
+
+#ifdef QMEDIA_DIRECTSHOW_CAMERA
+void DSServicePlugin::updateDevices() const
+{
+    m_cameraDevices.clear();
+    m_cameraDescriptions.clear();
+
+    CoInitialize(NULL);
+    ICreateDevEnum* pDevEnum = NULL;
+    IEnumMoniker* pEnum = NULL;
+    // Create the System device enumerator
+    HRESULT hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL,
+                 CLSCTX_INPROC_SERVER, IID_ICreateDevEnum,
+		 reinterpret_cast<void**>(&pDevEnum));
+    if(SUCCEEDED(hr)) {
+        // Create the enumerator for the video capture category
+	hr = pDevEnum->CreateClassEnumerator(
+	     CLSID_VideoInputDeviceCategory, &pEnum, 0);
+	pEnum->Reset();
+	// go through and find all video capture devices
+	IMoniker* pMoniker = NULL;
+	while(pEnum->Next(1, &pMoniker, NULL) == S_OK) {
+	    IPropertyBag *pPropBag;
+	    hr = pMoniker->BindToStorage(0,0,IID_IPropertyBag,
+	         (void**)(&pPropBag));
+            if(FAILED(hr)) {
+	        pMoniker->Release();
+		continue; // skip this one
+	    }
+	    // Find the description
+	    WCHAR str[120];
+	    VARIANT varName;
+	    varName.vt = VT_BSTR;
+            hr = pPropBag->Read(L"FriendlyName", &varName, 0);
+	    if(SUCCEEDED(hr)) {
+	        StringCchCopyW(str,sizeof(str)/sizeof(str[0]),varName.bstrVal);
+		QString temp(QString::fromUtf16((unsigned short*)str));
+		m_cameraDevices.append(QString("ds:%1").arg(temp).toLocal8Bit().constData());
+	        hr = pPropBag->Read(L"Description", &varName, 0);
+	        StringCchCopyW(str,sizeof(str)/sizeof(str[0]),varName.bstrVal);
+		QString temp2(QString::fromUtf16((unsigned short*)str));
+		m_cameraDescriptions.append(temp2);
+	    }
+	    pPropBag->Release();
+	    pMoniker->Release();
+	}
+    }
+    CoUninitialize();
+}
+#endif
+
+Q_EXPORT_PLUGIN2(qtmedia_dsengine, DSServicePlugin);
+