sl@0: // Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #ifndef __A2DPBTHEADSETAUDIOIF_H__
sl@0: #define __A2DPBTHEADSETAUDIOIF_H__
sl@0: 
sl@0: #include <e32base.h>
sl@0: #include <bttypes.h> //TBTDevAddr
sl@0: #include <es_sock.h> //RSocketServer, RSocket
sl@0: #include <bt_sock.h> //RBTPhysicalLinkAdaptor
sl@0: #include "GavdpStateMachine.h"
sl@0: #include "RTPStreamer.h"
sl@0: 
sl@0: class CA2dpCodecUtilities; //fwd ref
sl@0: class CMMFCodec; //fwd ref
sl@0: class TRange;	// fwd ref
sl@0: 
sl@0: 
sl@0: /**
sl@0: API to access and send audio to an A2DP compliant audio headset
sl@0: This API is used internally within the Symbian reference 
sl@0: CMMFDevSound/CMMFHwDevices/CRoutingSoundPlayDevice.
sl@0: 
sl@0: @internalTechnology
sl@0: */
sl@0: class CA2dpBTHeadsetAudioInterface : public CBase, public MGAVDPStateChangeObserver, public MRTPStreamerObserver
sl@0: 	{
sl@0: public:
sl@0: 	IMPORT_C static CA2dpBTHeadsetAudioInterface* NewL();
sl@0: 	IMPORT_C ~CA2dpBTHeadsetAudioInterface();	
sl@0: 	IMPORT_C void Initialize(const TBTDevAddr& aRemoteAddress, TRequestStatus& aStatus);
sl@0: 	IMPORT_C void CancelInitialize();
sl@0: 	IMPORT_C TInt GetSupportedDataTypes(RArray<TFourCC>& aSupportedDataTypes) const;
sl@0: 	IMPORT_C TInt GetSupportedSampleRates(RArray<TUint>& aSupportedDiscreteRates, RArray<TRange>& aSupportedRateRanges) const;
sl@0: 	IMPORT_C TInt GetSupportedChannels(RArray<TUint>& aSupportedChannels, TMMFStereoSupport& aStereoSupport) const;
sl@0: 	IMPORT_C TInt SetDataType(const TFourCC& aDataType);
sl@0: 	IMPORT_C TInt SetSampleRate(TUint aSampleRate);
sl@0: 	IMPORT_C TInt SetChannels(TUint aChannels, TMMFStereoSupport aStereoSupport);
sl@0: 	IMPORT_C void OpenDevice(TRequestStatus& aStatus);
sl@0: 	IMPORT_C void CancelOpenDevice();
sl@0: 	IMPORT_C void CloseDevice(TRequestStatus& aStatus);
sl@0: 	IMPORT_C TUint Volume() const;
sl@0: 	IMPORT_C TInt SetVolume(TUint aVolume);
sl@0: 	IMPORT_C void PlayData(const TDesC8& aData, TRequestStatus& aStatus);
sl@0: 	IMPORT_C void CancelPlayData();
sl@0: 	IMPORT_C void FlushBuffer();
sl@0: 	IMPORT_C TUint BytesPlayed() const;
sl@0: 	IMPORT_C void ResetBytesPlayed();
sl@0: 	IMPORT_C void PauseBuffer();
sl@0: 	IMPORT_C void ResumePlaying();
sl@0: 	IMPORT_C void NotifyError(TRequestStatus& aStatus);
sl@0: 	IMPORT_C void CancelNotifyError();
sl@0: 	
sl@0: 	//APIs only used for unit testing purposes - not needed for BT server or routing sound device
sl@0: 	IMPORT_C MGavdpUser* TEST_MGavdpUser();
sl@0: 	IMPORT_C void TEST_ForceRemoteSBCCodecConfiguration(const TSBCCodecCapabilities& aRemoteCodecConfiguration);
sl@0: private:
sl@0: 	CA2dpBTHeadsetAudioInterface();
sl@0: 	void ConstructL();
sl@0: 	
sl@0: 	void ProcessGAVDPStateChangeIdleToOpen(TInt aError);
sl@0: 	void ProcessGAVDPStateChangeOpenToStreaming(TInt aError);
sl@0: 	void ProcessGAVDPStateChangeStreamingToOpen(TInt aError);
sl@0: 
sl@0: 	//MGAVDPStateChangeObserver
sl@0: 	void GAVDPStateChangeComplete(const TGAVDPState& aInitialState, TInt aError);
sl@0: 	void GAVDPStateMachineEvent(TInt aError);
sl@0: 	void GAVDPStateMachineStreamSuspendedByRemoteHeadset();
sl@0: 	TInt GAVDPStateMachineReconfigureByRemoteHeadset();
sl@0: 	void GAVDPStateMachineStreamResumedByRemoteHeadset();
sl@0: 	
sl@0: 	//MRTPStreamerObserver
sl@0: 	void RTPStreamerEvent(TInt aError);
sl@0: 
sl@0: 	TInt SetSniffMode(TBool aSniffMode);
sl@0: private:
sl@0: 	//owned classes
sl@0: 	CGAVDPStateMachine* iGAVDPStateMachine;
sl@0: 	CActiveRTPStreamer* iRTPStreamer;
sl@0: 	CMMFCodec* iCodec;
sl@0: 	CA2dpAudioCodecConfiguration* iA2dpCodecConfiguration;
sl@0: 	
sl@0: 	RSocketServ iSocketServer;
sl@0: 	RBTPhysicalLinkAdapter iBTPhysicalLinkAdapter;
sl@0: 	TRequestStatus* iInitializeRequestStatus;
sl@0: 	TRequestStatus* iOpenDeviceRequestStatus;
sl@0: 	TRequestStatus* iCloseDeviceRequestStatus;
sl@0: 	TRequestStatus* iNotifyRequestStatus;
sl@0: 	TFourCC	iDataType;
sl@0: 	TBool	iAudioSettingsHaveChanged;
sl@0: 	TBool	iReconfiguring;
sl@0: 	TBool	iPaused;
sl@0: 	TInt iOpenDeviceError;
sl@0: 	};
sl@0: 
sl@0: #endif
sl@0: