Add Windows Media Foundation backend for QMediaPlayer

Task-number:QTMOBILITY-1606
Reviewed-by: Michael Goddard
(cherry picked from commit bdf3a9b39661cfb836245139d02e95e854646a7e)
(cherry picked from commit 8d2370953eb32bf44a037244e0d9f9b484875f7a)

Change-Id: I07790b8c540a04e4e19a3d018a4884a773e980bf
Reviewed-on: http://codereview.qt.nokia.com/2086
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Ling Hu <ling.hu@nokia.com>

1 files changed, 106 insertions, 0 deletions

diff --git a/src/plugins/wmf/player/sourceresolver.h b/src/plugins/wmf/player/sourceresolver.h
new file mode 100644
index 000000000..60bee69f1
--- /dev/null
+++ b/src/plugins/wmf/player/sourceresolver.h
@@ -0,0 +1,106 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef SOURCERESOLVER_H
+#define SOURCERESOLVER_H
+
+#include "mfstream.h"
+#include "qmediaresource.h"
+
+class SourceResolver: public QObject, public IMFAsyncCallback
+{
+    Q_OBJECT
+public:
+    SourceResolver(QObject *parent);
+
+    ~SourceResolver();
+
+    STDMETHODIMP QueryInterface(REFIID riid, LPVOID *ppvObject);
+    STDMETHODIMP_(ULONG) AddRef(void);
+    STDMETHODIMP_(ULONG) Release(void);
+
+    HRESULT STDMETHODCALLTYPE Invoke(IMFAsyncResult *pAsyncResult);
+
+    HRESULT STDMETHODCALLTYPE GetParameters(DWORD*, DWORD*);
+
+    void load(QMediaResourceList& resources, QIODevice* stream);
+
+    void cancel();
+
+    void shutdown();
+
+    IMFMediaSource* mediaSource() const;
+
+Q_SIGNALS:
+    void error(long hr);
+    void mediaSourceReady();
+
+private:
+    class State : public IUnknown
+    {
+    public:
+        State(IMFSourceResolver *sourceResolver, bool fromStream);
+        ~State();
+
+        STDMETHODIMP QueryInterface(REFIID riid, LPVOID *ppvObject);
+
+        STDMETHODIMP_(ULONG) AddRef(void);
+
+        STDMETHODIMP_(ULONG) Release(void);
+
+        IMFSourceResolver* sourceResolver() const;
+        bool fromStream() const;
+
+    private:
+        long m_cRef;
+        IMFSourceResolver *m_sourceResolver;
+        bool m_fromStream;
+    };
+
+    long              m_cRef;
+    IUnknown          *m_cancelCookie;
+    IMFSourceResolver *m_sourceResolver;
+    IMFMediaSource    *m_mediaSource;
+    MFStream          *m_stream;
+    QMutex            m_mutex;
+};
+
+#endif