--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/3rdparty/phonon/mmf/audiooutput.h Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,98 @@
+/* This file is part of the KDE project.
+
+Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+
+This library is free software: you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation, either version 2.1 or 3 of the License.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this library. If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#ifndef PHONON_MMF_AUDIOOUTPUT_H
+#define PHONON_MMF_AUDIOOUTPUT_H
+
+#include <QHash>
+
+#include "mmf_medianode.h"
+#include <phonon/audiooutputinterface.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace Phonon
+{
+namespace MMF
+{
+class Backend;
+class VolumeObserver;
+
+/**
+ * @short AudioOutputInterface implementation for MMF.
+ *
+ * Forwards volume commands to the VolumeObserver instance,
+ * which is provided by the backend when MediaNode objects are
+ * connected.
+ *
+ * \section volume Volume
+ *
+ * Phonon's concept on volume is from 0.0 to 1.0, and from 1< it does
+ * voltage multiplication. CDrmPlayerUtility goes from 1 to
+ * CDrmPlayerUtility::MaxVolume(). We apply some basic math to convert
+ * between the two.
+ *
+ * @author Frans Englich<frans.englich@nokia.com>
+ */
+class AudioOutput : public MediaNode
+ , public AudioOutputInterface
+{
+ Q_OBJECT
+ Q_INTERFACES(Phonon::AudioOutputInterface)
+
+public:
+ AudioOutput(Backend *backend, QObject *parent);
+ virtual qreal volume() const;
+ virtual void setVolume(qreal volume);
+
+ virtual int outputDevice() const;
+
+ /**
+ * Has no effect.
+ */
+ virtual bool setOutputDevice(int);
+
+ static QHash<QByteArray, QVariant> audioOutputDescription(int index);
+
+ enum Constants
+ {
+ AudioOutputDeviceID = 0
+ };
+
+protected:
+ virtual bool activateOnMediaObject(MediaObject *mo);
+
+Q_SIGNALS:
+ void volumeChanged(qreal volume);
+ void audioDeviceFailed();
+
+private:
+
+ void setVolumeObserver(VolumeObserver* observer);
+
+ qreal m_volume;
+
+ // Not owned
+ VolumeObserver* m_observer;
+};
+}
+}
+
+QT_END_NAMESPACE
+
+#endif