--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vtengines/videoteleng/Inc/Audio/MVtEngAudio.h	Mon Nov 23 14:47:47 2009 +0200
@@ -0,0 +1,117 @@
+/*
+* Copyright (c) 2006 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:  Audio volume and routing interface
+*
+*/
+
+
+
+#ifndef MVTENGAUDIO_H
+#define MVTENGAUDIO_H
+
+//  INCLUDES
+#include <e32def.h>
+
+/**
+*  Interface for audio related information.
+*
+*  @lib videoteleng
+*  @since 2.6
+*/
+class MVtEngAudio
+    {
+    public:
+
+        /**
+        * Current routing state
+        */
+        enum TAudioRoutingState 
+            {
+            EAudioHandset,
+            EAudioLoudspeaker,
+            EAudioBT,
+            EAudioWiredHeadset
+            };
+
+        /**
+        * Wired headset type
+        */
+        enum TWiredHeadsetType
+            {
+            EWiredHeadset,
+            EWiredLoopset,
+            EWiredTty,
+            EWiredNone
+            };
+
+        /**
+        * Audio routing setting to be used when changing
+        * audio routing from client.
+        */
+        enum TVtEngRoutingSetting
+            {
+            EActivateHandsfree,
+            EDeactivateHansfree,
+            EActivateBT,
+            EDeactivateBT
+            };
+
+        /**
+        * Speaker volume levels for Handset and Handsfree.
+        */
+        struct TVtEngOutputVolume
+            {
+            TInt iHandsetVolume;
+            TInt iHandsfreeVolume;
+            };
+
+        /**
+        * Returns target where audio is currently routed to.
+        * @param aAudioRoutingState routing target
+        * @return Symbian OS error code
+        */
+        virtual TInt GetRoutingState(
+            TAudioRoutingState& aAudioRoutingState ) = 0;
+
+        /**
+        * Returns if routing to specified target can be
+        * done.
+        * @param aAudioRoutingState routing target
+        * @param aAvailable ETrue if possible to do
+        * @return Symbian OS error code
+        */
+        virtual TInt GetRoutingAvailability(
+            const TAudioRoutingState aAudioRoutingState,
+            TBool& aAvailable ) = 0;
+
+        /**
+        * Returns type of wired headset
+        * @return Symbian OS error code.
+        */
+        virtual TInt GetHeadsetType(
+            TWiredHeadsetType& aHeadsetType ) = 0;
+
+        /**
+        * Returns speaker volume
+        * @param aHandsetVolume if ETrue returns handset volume,
+        * otherwise loudspeaker volume.
+        * @return output volume ranging from 1 to 10 or Symbian OS error code.
+        */
+        virtual TInt OutputVolume( 
+            const TBool aHandsetVolume ) const = 0;
+
+
+    };
+
+#endif      // MVTENGAUDIO_H