diff -r 000000000000 -r f63038272f30 bluetoothengine/btsac/inc/btsacStreamerController.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/bluetoothengine/btsac/inc/btsacStreamerController.h Mon Jan 18 20:28:57 2010 +0200 @@ -0,0 +1,258 @@ +/* +* Copyright (c) 2005 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: Declaration for CBTSACStreamerController class. This class constructs and +* communicates with 'BT Audio Streamer' component to do RTP streaming. + +* +*/ + + +#ifndef BTSAC_STREAMER_H +#define BTSAC_STREAMER_H + +// INCLUDES + +#include +#include +#include // Protocol definitions, e.g., TSBCCodecCapabilities +#include "btsacActivePacketDropIoctl.h" +#include // uuid of SBC Encoder + + +class MBTAudioAdaptationObserver + { + public: + virtual void NotifyError(TInt aError) = 0; + }; + +// CONSTANTS + +// DATA TYPES + +// FORWARD DECLARATIONS + +// CLASS DECLARATION + +/** +* +* +* +*/ + +class TBitpoolData + { +public: + TInt iMaxBitpoolValue; + TInt iMaxDeviation; + //TInt iUpgradeDelay; + TInt iIndex; + TInt iDownBitpoolIndex; + TInt iUpBitpoolIndex; + TBool iMinimumMaxBitpool; + }; + +NONSHARABLE_CLASS(CBTSACStreamerController) : public CActive, MBTAudioErrorObserver, MActivePacketDropIoctlObserver + { + public: // Constructors and destructor + + /** + * Two-phased constructor. + * + * + * + */ + static CBTSACStreamerController* NewL(MBTAudioAdaptationObserver& aObserver); + + /** + * Destructor. + * + * + */ + virtual ~CBTSACStreamerController(); + + public: + // From MBTAudioErrorObserver + virtual TInt Error(const TInt aError); + + // From MActivePacketDropIoctlObserver + virtual void PacketsDropped(TInt aPacketCount); + + + public: // New functions + + /** + * + * + * @param aStatus + * @return None. + */ + TInt StartStream(RSocket& aSocket, TInt aFrameLength); + + /** + * + * + * @param aStatus + * @return None. + */ + TInt StopStream(); + + /** + * + * + * @param aStatus + * @return None. + */ + void ResetAudioInput(); + + /** + * + * + * @param aStatus + * @return None. + */ + TInt FillCapabilities( TSBCCodecCapabilities& aSbc ); + + /** + * + * + * @param aStatus + * @return None. + */ + TInt ConfigureSEP( TSBCCodecCapabilities& aDec ); + + /** + * + * + * @param aStatus + * @return None. + */ + TInt FrameLength() const; + + /** + * + * + * @param none + * @return TSBCCodecCapabilities. + */ + TSBCCodecCapabilities &GetCaps(); + + protected: // Functions from CActive + + /** + * RunL is called by framework after request is being completed. + * @param nones + * @return none + */ + void RunL(); + + /** + * DoCancel() has to be implemented by all the classes deriving CActive. + * Request cancellation routine. + * @param none + * @return none + */ + void DoCancel(); + + /** + * RunError is called if RunL() leaves + */ + TInt RunError(TInt aError); + + + private: // Data definitions + + enum TBTSACStreamingState + { + EStateStreaming, + EStateIdle, + EStateError + }; + + typedef enum EOngoingAction + { + ENone, + EErrorSending, + EDowngradeBitrate, + EUpgradeBitrate, + EStartStabilizingTimer, + EStabilize + }; + + private: + + /** + * C++ default constructor. + */ + CBTSACStreamerController(MBTAudioAdaptationObserver& aObserver); + + /** + * Symbian 2nd phase constructor. + * + * + * + * + */ + void ConstructL(); + + void CheckAndAdjustBitpool(TSBCCodecCapabilities& aDec); + TInt GetMatchingCaps(TSBCCodecCapabilities& aCaps); + TInt ConfigureSEPBitpool(EOngoingAction aAction); + void DoSelfComplete(EOngoingAction aAction, TInt aError); + + void SetBlockLen(TSBCCodecCapabilities& aCap, TUint8 aBlockLen); + TInt GetBlockLen(TSBCCodecCapabilities& aCap) const; + void SetSamplingFrequency(TSBCCodecCapabilities& aCap, TUint8 aFrequency); + TInt GetSamplingFrequency(TSBCCodecCapabilities& aCap) const; + TInt FrameLengthFormula(TSBCCodecCapabilities& aCap) const; + TInt GetNumOfChannels(TSBCCodecCapabilities& aCap) const; + void SetNumOfSubbands(TSBCCodecCapabilities& aCap, TUint8 aNumOfSubbands); + TInt GetNumOfSubbands(TSBCCodecCapabilities& aCap) const; + void SetBitpoolValues(TSBCCodecCapabilities& aCap); + void SetAllocationMethod(TSBCCodecCapabilities& aCap, TUint8 aAllocationMethod); + void SetChannelMode(TSBCCodecCapabilities& aCap, TUint8 aChannelMode); + + TInt SetCurrentBitpoolData(TInt aBitpool); + void InitializeBitpoolDataL(); + void ReorganizeBitpoolTable(TInt aNegotiatedMaxBitpool); + TBitpoolData* GetBitpoolData(TInt aIndex); + TInt GetIndex(TInt aBitpool); + TBool IndexValid(TInt aIndex); + + private: // Data + + CBTAudioStreamer* iBTStreamer; // Bluetooth Audio Streamer component + CBTAudioStreamInputBase* iAudioInput; + TBTSACStreamingState iState; + EOngoingAction iOngoingAction; + TSBCCodecCapabilities iLocalCap; // local copy of Audio Adapatation capabilities + TSBCCodecCapabilities iMatchCap; // local copy of capabilites used to configure accessory + RLibrary iLib; // for loading BTAudioStreamer and BTAudioAdaptation dll + TInt iCurrentBitrate; + TInt iCurrentFrameLength; + RTimer iTimer; + CActivePacketDropIoctl* iPacketDropIoctl; + RThread iThread; + CSbcEncoderIntfc *iEncoderCI; + MBTAudioAdaptationObserver& iObserver; + TInt iTotalNbrOfDroppedPackets; + TTime iFirstPacketDropTime; + TInt iPacketDropDeviation; + RArray iBitpoolData; + TBitpoolData* iCurrentBitpoolData; + }; + + +#endif // BTSAC_STREAMER_H + +// End of File \ No newline at end of file