--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmmw_plat/voip_audio_services_api/inc/voipdownlinkstream.h	Tue Feb 02 01:08:46 2010 +0200
@@ -0,0 +1,253 @@
+/*
+* 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:  Defines VoIP downlink stream APIs.
+*
+*/
+
+
+#ifndef __VOIPDOWNLINKSTREAM_H
+#define __VOIPDOWNLINKSTREAM_H
+
+#include <voipaudiocommon.h>
+#include <voipdtmftoneplayer.h>
+
+
+// FORWARD DECLARATIONS
+class CVoIPAudioDownlinkStream;
+class CVoIPAudioDownlinkStreamImpl;
+class CVoIPDataBuffer;
+class CVoIPFormatIntfc;
+
+/**
+ *  MVoIPDownlinkObserver class
+ *
+ *  ?more_complete_description
+ *
+ *  @lib VoIPAudioIntfc.dll
+ *  @since S60 v5.0
+ */
+class MVoIPDownlinkObserver
+    {
+public:
+    static const TUint KOpenComplete       = 1;
+    static const TUint KDownlinkError      = 2;
+    static const TUint KDownlinkClosed     = 3;
+    static const TUint KAudioDeviceChanged = 4;
+
+public:
+    /**
+     * ?description
+     *
+     * @since S60 v5.0
+     * @param const CVoIPAudioDownlinkStream&
+     * @param CVoIPDataBuffer*
+     * @return void
+     */
+    virtual void FillBuffer(const CVoIPAudioDownlinkStream& aSrc,
+                            CVoIPDataBuffer* aBuffer) = 0;
+    /**
+     * ?description
+     *
+     * @since S60 v5.0
+     * @param const CVoIPAudioDownlinkStream&
+     * @param TInt - Event type
+     * @param TInt - Status
+     * @return void
+     */
+    virtual void Event(const CVoIPAudioDownlinkStream& aSrc,
+                       TInt aEventType,
+                       TInt aError) = 0;
+    };
+
+
+/**
+ *  CVoIPAudioDownlinkStream class
+ *
+ *  ?more_complete_description
+ *
+ *  @lib VoIPAudioIntfc.dll
+ *  @since S60 v5.0
+ */
+class CVoIPAudioDownlinkStream
+    {
+public:
+    /**
+     *  TVoIPOutputDevice
+     *  ?description
+     *  @since S60 v5.0
+     */
+    enum TVoIPOutputDevice
+        {
+        EHandset,
+        ELoudSpeaker,
+        ENoPreference
+        };
+
+public:
+    /**
+     * Destructor
+     *
+     * @since S60 v5.0
+     * @param none
+     * @return none
+     */
+    IMPORT_C virtual ~CVoIPAudioDownlinkStream();
+
+    /**
+     * ?description
+     *
+     * @since S60 v5.0
+     * @param MVoIPDownlinkObserver&
+     * @return TInt
+     */
+    IMPORT_C TInt Open(MVoIPDownlinkObserver& aObserver);
+
+    /**
+     * ?description
+     *
+     * @since S60 v5.0
+     * @param TVersion&
+     * @return TInt
+     */
+    IMPORT_C TInt GetVersion(TVersion& aVersion);
+
+    /**
+     * ?description
+     *
+     * @since S60 v5.0
+     * @param TInt&
+     * @return TInt
+     */
+    IMPORT_C TInt GetMaxVolume(TInt& aVolume);
+
+    /**
+     * ?description
+     *
+     * @since S60 v5.0
+     * @param TInt
+     * @return TInt
+     */
+    IMPORT_C TInt SetVolume(TInt aVolume);
+
+    /**
+     * ?description
+     *
+     * @since S60 v5.0
+     * @param TInt&
+     * @return TInt
+     */
+    IMPORT_C TInt GetVolume(TInt& aVolume);
+
+    /**
+     * ?description
+     *
+     * @since S60 v5.0
+     * @param TVoIPCodecFormat
+     * @param CVoIPFormatIntfc*&
+     * @return TInt
+     */
+    IMPORT_C TInt SetFormat(TVoIPCodecFormat aFormat,
+                            CVoIPFormatIntfc*& aIntfc);
+
+    /**
+     * ?description
+     *
+     * @since S60 v5.0
+     * @param TVoIPOutputDevice
+     * @return TInt
+     */
+    IMPORT_C TInt SetAudioDevice(TVoIPOutputDevice aDevice);
+
+    /**
+     * ?description
+     *
+     * @since S60 v5.0
+     * @param TVoIPOutputDevice&
+     * @return TInt
+     */
+    IMPORT_C TInt GetAudioDevice(TVoIPOutputDevice& aDevice);
+
+    /**
+     * ?description
+     *
+     * @since S60 v5.0
+     * @param none
+     * @return TInt
+     */
+    IMPORT_C TInt Start();
+
+    /**
+     * ?description
+     *
+     * @since S60 v5.0
+     * @param none
+     * @return TInt
+     */
+    IMPORT_C TInt Stop();
+
+    /**
+     * ?description
+     *
+     * @since S60 v5.0
+     * @param none
+     * @return void
+     */
+    IMPORT_C void Close();
+
+    /**
+     * ?description
+     *
+     * @since S60 v5.0
+     * @param CVoIPDataBuffer*
+     * @return TInt
+     */
+    IMPORT_C TInt BufferFilled(CVoIPDataBuffer* aBuffer);
+
+protected:
+
+    /**
+     * Constructor
+     *
+     * @since S60 v5.0
+     * @param none
+     * @return TInt
+     */
+    CVoIPAudioDownlinkStream();
+
+    /**
+     * Symbian constructor
+     *
+     * @since S60 v5.0
+     * @param none
+     * @return TInt
+     */
+     void ConstructL(
+          CVoIPAudioDownlinkStreamImpl* aVoIPAudioDownlinkStreamImpl);
+
+private:
+    /**
+     * For internal use only
+     */
+    friend class CDTMFTonePlayer;
+
+private:
+
+    CVoIPAudioDownlinkStreamImpl* iVoIPAudioDownlinkStreamImpl;
+
+    };
+
+#endif //__VOIPDOWNLINKSTREAM_H
+
+
+// End of file