diff -r 000000000000 -r a2952bb97e68 mmappcomponents/playbackhelper/src/devsoundif.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmappcomponents/playbackhelper/src/devsoundif.cpp	Thu Dec 17 08:55:47 2009 +0200
@@ -0,0 +1,114 @@
+/*
+* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Implementation of CDevSoundIf
+*
+*/
+
+// Version : %version: 5 %
+
+
+
+// INCLUDE FILES
+#include <mmf/server/sounddevice.h>
+#include <devsoundif.h>
+
+#include "playbackhelper_log.h"
+
+// CONSTANTS
+const TInt KTenStepsVolume = 10;
+const TInt KTwentyStepsVolume = 20;
+
+
+// ============================ MEMBER FUNCTIONS ===================================================
+
+// -------------------------------------------------------------------------------------------------
+// CDevSoundIf::CDevSoundIf
+// C++ default constructor can NOT contain any code, that might leave.
+// -------------------------------------------------------------------------------------------------
+//
+CDevSoundIf::CDevSoundIf()
+{
+    PLAYBACKHELPER_DEBUG(_L("CDevSoundIf::CDevSoundIf()"));
+}
+
+// -------------------------------------------------------------------------------------------------
+// CDevSoundIf::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -------------------------------------------------------------------------------------------------
+//
+void CDevSoundIf::ConstructL()
+{
+    PLAYBACKHELPER_DEBUG(_L("CDevSoundIf::ConstructL()"));
+
+    iDevSound = CMMFDevSound::NewL();
+}
+
+// -------------------------------------------------------------------------------------------------
+// CDevSoundIf::NewL
+// Two-phased constructor.
+// -------------------------------------------------------------------------------------------------
+//
+EXPORT_C CDevSoundIf* CDevSoundIf::NewL()
+{
+    PLAYBACKHELPER_DEBUG(_L("CDevSoundIf::NewL()"));
+
+    CDevSoundIf* self = new( ELeave ) CDevSoundIf;
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop();
+    return self;
+}
+
+// -------------------------------------------------------------------------------------------------
+// CDevSoundIf::~CDevSoundIf
+// Destructor
+// -------------------------------------------------------------------------------------------------
+//
+EXPORT_C CDevSoundIf::~CDevSoundIf()
+{
+    PLAYBACKHELPER_DEBUG(_L("CDevSoundIf::~CDevSoundIf()"));
+
+    if ( iDevSound ) 
+    {
+        delete iDevSound;
+    }
+
+}
+
+// -------------------------------------------------------------------------------------------------
+// CDevSoundIf::GetNumberOfVolumeSteps
+// -------------------------------------------------------------------------------------------------
+//
+EXPORT_C TInt CDevSoundIf::GetNumberOfVolumeSteps()
+{
+    // 
+    // set default 10-steps volume
+    //
+    TInt volumeSteps = KTenStepsVolume;
+	
+    if ( iDevSound && 
+         iDevSound->MaxVolume() >= KTwentyStepsVolume ) 
+    {
+        //
+        // set 20-steps volume
+        //
+        volumeSteps = KTwentyStepsVolume;
+    }	 
+
+    PLAYBACKHELPER_DEBUG(_L("CDevSoundIf::GetNumberOfVolumeSteps() returns [%d]"), volumeSteps);
+
+    return volumeSteps;
+}
+
+//  End of File