/*

* Copyright (c) 2006-2008 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: Audio Stubs -  Declaration of CMMFDevSoundAdaptation::CBody.

*

*/

#ifndef MMFDEVSOUNDADAPTATIONBODY_H

#define MMFDEVSOUNDADAPTATIONBODY_H

//  INCLUDES

#include <e32base.h>

#include <mmfhwdevice.h>

#include <MmfDevSoundAdaptation.h>

//#include <MdaSound.h>

#include "ToneGenerator.h"

#include "DevSoundUtility.h"

// CONSTANTS

const TInt KDevSoundDefaultFrameSize = 0x1000;

const TInt KDevSoundMinFrameSize = 0x800; //2K

const TInt KDevSoundMaxFrameSize = 0x4000;  //16K

const TInt KDevSoundDeltaFrameSize = 0x800; //2K

const TInt KDevSoundFramesPerSecond = 4;

// FORWARD DECLARATIONS

class CMMFHwDeviceStub;

class CTonePlayCompleteTimer;

class CBytesPlayedCIImpl;

class CG711DecoderIntfcCI;

class CG711EncoderIntfcCI;

class CG729DecoderIntfcCI;

class CG729EncoderIntfcCI;

class CIlbcDecoderIntfcCI;

class CIlbcEncoderIntfcCI;

class CSpeechEncoderConfigCI;

class CErrorConcealmentIntfcCI;

// CLASS DECLARATION

/**

*  Class implementing CMMFDevSoundAdaptation behaviour.

*

*  @lib MmfDevSoundAdaptation_Stub.lib

*  @since S60 3.0

*/

class CMMFDevSoundAdaptation::CBody : public CBase,

                                      public MMMFHwDeviceObserver

    {

    public:  // Constructors and destructor

        /**

        * Constructs, and returns a pointer to, a new CBody object.

        * Leaves on failure..

        * @return CBody* A pointer to newly created object.

        */

        static CBody* NewL();

        /**

        * Destructor.

        */

        ~CBody();

    public: // New functions

        /**

        * Initializes to raw audio data PCM16 and Sampling Rate of 8 KHz.

        * On completion of Initialization, calls InitializeComplete() on

        * aDevSoundObserver.

        * Leaves on failure.

        * @since S60 3.0

        * @param MDevSoundAdaptationObserver& aDevSoundObserver A reference

        *        to the DevSound adaptation observer instance.

        * @param TMMFState aMode Mode for which this object will be used.

        * @return void

        */

        void InitializeL(MDevSoundAdaptationObserver& aDevSoundObserver,

                         TMMFState aMode);

        /**

        * Initializes DevSound object for the mode aMode for processing audio

        * data with hardware device aHWDev.

        * On completion of Initialization, calls InitializeComplete() on

        * aDevSoundObserver.

        * Leaves on failure.

        * @since S60 3.0

        * @param MDevSoundAdaptationObserver& aDevSoundObserver A reference

        *        to the DevSound adaptation observer instance.

        * @param TUid aHWDev The CMMFHwDevice implementation identifier.

        * @param TMMFState aMode The mode for which this object will be used

        * @return void

        */

        void InitializeL(MDevSoundAdaptationObserver& aDevSoundObserver,

                         TUid aHWDev, TMMFState aMode);

        /**

        * Initializes DevSound object for the mode aMode for processing audio

        * data with hardware device supporting FourCC aDesiredFourCC.

        * Leaves on failure.

        * @since S60 3.0

        * @param MDevSoundAdaptationObserver& aDevSoundObserver A reference

        *        to the DevSound adaptation observer instance.

        * @param TFourCC aDesiredFourCC The CMMFHwDevice implementation FourCC

        *        code.

        * @param TMMFState aMode The mode for which this object will be used

        * @return KErrNone if successfull, else corresponding error code

        * @return void

        */

        void InitializeL(MDevSoundAdaptationObserver& aDevSoundObserver,

                         TFourCC aDesiredFourCC,

                         TMMFState aMode);

        /**

        * Returns the supported Audio settings ie. encoding, sample rates,

        * mono/stereo operation, buffer size etc..

        * @since S60 3.0

        * @return TMMFCapabilities The device settings.

        */

        TMMFCapabilities Capabilities();

        /**

        * Returns the current device configuration.

        * @since S60 3.0

        * @return TMMFCapabilities The device settings.

        */

        TMMFCapabilities Config() const;

        /**

        * Configure CMMFDevSound object with the settings in aConfig. Use this

        * to set sampling rate, encoding and mono/stereo.

        * Leaves on failure.

        * @since S60 3.0

        * @param const TMMFCapabilities& aConfig The attribute values to which

        *        CMMFDevSound object will be configured to.

        * @return void

        */

        void SetConfigL(const TMMFCapabilities& aCaps);

        /**

        * Returns an integer representing the maximum volume device supports.

        * This is the maximum value which can be passed to

        * CMMFDevSound::SetVolume.

        * @since S60 3.0

        * @return TInt The maximum volume. This value is platform dependent but

        *        is always greater than or equal to one.

        */

        TInt MaxVolume();

        /**

        * Returns an integer representing the current volume.

        * @since S60 3.0

        * @return TInt The current volume level.

        */

        TInt Volume();

        /**

        * Changes the current playback volume to a specified value. The volume

        * can be changed before or during playback and is effective immediately.

        * @since S60 3.0

        * @param TInt aVolume The volume setting. This can be any value from 0

        *        to the value returned by a call to

        *        CMMFDevSound::MaxVolume(). If the volume is not

        *        within this range, the volume is automatically set

        *        to minimum or maximum value based on the value

        *        that is being passed. Setting a zero value mutes

        *        the sound. Setting the maximum value results in

        *        the loudest possible sound.

        * @return void

        */

        void SetVolume(TInt aVolume);

        /**

        * Returns an integer representing the maximum gain the device supports.

        * This is the maximum value which can be passed to CMMFDevSound::SetGain

        * @since S60 3.0

        * @return TInt The maximum gain. This value is platform dependent but is

        *        always greater than or equal to one.

        */

        TInt MaxGain();

        /**

        * Returns an integer representing the current gain.

        * @since S60 3.0

        * @return TInt The current gain level.

        */

        TInt Gain();

        /**

        * Changes the current recording gain to a specified value. The gain can

        * be changed before or during recording and is effective immediately.

        * @since S60 3.0

        * @param TInt aGain The gain setting. This can be any value from zero to

        *        the value returned by a call to

        *        CMMFDevSound::MaxGain(). If the volume

        *        is not within this range, the gain is automatically

        *        set to minimum or maximum value based on the value

        *        that is being passed. Setting a zero value mutes the

        *        sound. Setting the maximum value results in the

        *        loudest possible sound.

        * @return void

        */

        void SetGain(TInt aGain);

        /**

        * Returns the speaker balance set for playing.

        * Leaves on failure.

        * @since S60 3.0

        * @param TInt &aLeftPercentage On return contains the left speaker

        *        volume percentage.

        * @param TInt &aRightPercentage On return contains the right speaker

        *        volume percentage.

        * @return void

        */

        void GetPlayBalanceL(TInt& aLeftPercentage, TInt& aRightPercentage);

        /**

        * Sets the speaker balance for playing. The speaker balance can be

        * changed before or during playback and is effective immediately.

        * Leaves on failure.

        * @since S60 3.0

        * @param TInt aLeftPercentage The left speaker volume percentage. This

        *        can be any value from zero to 100. Setting

        *        a zero value mutes the sound on left

        *        speaker.

        * @param TInt aRightPercentage The right speaker volume percentage.

        *        This can be any value from zero to 100.

        *        Setting a zero value mutes the sound on

        *        right speaker.

        * @return void

        */

        void SetPlayBalanceL(TInt aLeftPercentage, TInt aRightPercentage);

        /**

        * Returns the microphone gain balance set for recording.

        * Leaves on failure.

        * @since S60 3.0

        * @param TInt &aLeftPercentage On return contains the left microphone

        *        gain percentage.

        * @param TInt &aRightPercentage On return contains the right microphone

        *        gain percentage.

        * @return void

        */

        void GetRecordBalanceL(TInt& aLeftPercentage, TInt& aRightPercentage);

        /**

        * Sets the microphone balance for recording. The microphone balance can

        * be changed before or during recording and is effective immediately.

        * Leaves on failure.

        * @since S60 3.0

        * @param TInt aLeftPercentage The left microphone gain percentage. This

        *        can be any value from zero to 100. Setting

        *        a zero value mutes the sound from left

        *        microphone.

        * @param TInt aRightPercentage The right microphone gain percentage.

        *        This can be any value from zero to 100.

        *        Setting a zero value mutes the sound from

        *        right microphone.

        * @return void

        */

        void SetRecordBalanceL(TInt aLeftPercentage, TInt aRightPercentage);

        /**

        * Initializes the audio device and starts the play process. This

        * function queries and acquires the audio policy before initializing

        * audio device. If there was an error during policy initialization,

        * PlayError() function will be called on the observer with error code

        * KErrAccessDenied, otherwise BufferToBeFilled() function will be called

        * with a buffer reference. After reading data into the buffer reference

        * passed, the client should call PlayData() to play data.

        * The amount of data that can be played is specified in

        * CMMFBuffer::RequestSize(). Any data that is read into buffer beyond

        * this size will be ignored.

        * Leaves on failure.

        * @since S60 3.0

        * @return void

        */

        void PlayInitL();

        /**

        * Initializes the audio device and starts the record process. This

        * function queries and acquires the audio policy before initializing

        * audio device. If there was an error during policy initialization,

        * RecordError() function will be called on the observer with error code

        * KErrAccessDenied, otherwise BufferToBeEmptied() function will be

        * called with a buffer reference. This buffer contains recorded or

        * encoded data. After processing data in the buffer reference passed,

        * the client should call RecordData() to continue recording process.

        * The amount of data that is available is specified in

        * CMMFBuffer::RequestSize().

        * Leaves on failure.

        * @since S60 3.0

        * @return void

        */

        void RecordInitL();

        /**

        * Plays data in the buffer at the current volume.

        * The client should fill the buffer with audio data before calling this

        * function. The observer gets a reference to the buffer along with the

        * callback function BufferToBeFilled(). When playing of the audio sample

        * is complete, successfully or otherwise, the function PlayError() on

        * the observer is called.

        * The last buffer of the audio stream being played should have the last

        * buffer flag set using CMMFBuffer::SetLastBuffer(TBool). If a

        * subsequent attempt to play the clip is made, this flag will need

        * resetting by the client.

        * @return void

        */

        void PlayData();

        /**

        * Contine the process of recording.

        * Once the buffer is filled with recorded data, the Observer gets a

        * reference to the buffer along with the callback function

        * BufferToBeEmptied(). After processing the buffer (copying over to a

        * different buffer or writing to file) the client should call this

        * function to continue the recording process.

        * @return void

        */

        void RecordData();

        /**

        * Stops the ongoing operation (Play, Record, TonePlay, Convert).

        * @since S60 3.0

        * @return void

        */

        void Stop();

        /**

        * Temporarily Stops the ongoing operation (Play, Record, TonePlay,

        * Convert).

        * @since S60 3.0

        * @return void

        */

        void Pause();

        /**

        * Returns the Sample recorded so far

        * @since S60 3.0

        * @return TInt Returns the samples recorded.

        */

        TInt SamplesRecorded();

        /**

        * Returns the Sample played so far

        * @since S60 3.0

        * @return TInt Returns the samples played.

        */

        TInt SamplesPlayed();

        /**

        * Initializes the audio device and starts playing a tone. The tone is

        * played with the frequency and duration specified.

        * Leaves on failure.

        * @since S60 3.0

        * @param TInt aFrequency The frequency at which the tone will be played.

        * @param const TTimeIntervalMicroSeconds &aDuration The period over

        *        which the tone will be played. A zero value causes the no tone

        *        to be played.

        * @return void

        */

        void PlayToneL(TInt aFrequency,

                       const TTimeIntervalMicroSeconds& aDuration);

        /**

        * Initializes audio device and starts playing a dual tone. Dual Tone is

        * played with the specified frequencies and for the specified duration.

        * Leaves on failure.

        * @since S60 3.0

        * @param TInt aFrequencyOne The first frequency of dual tone.

        * @param TInt aFrequencyTwo The second frequency of dual tone.

        * @param const TTimeIntervalMicroSeconds &aDuration The period over

        *        which the tone will be played. A zero value causes the no tone

        *        to be played.

        * @return void

        */

        void PlayDualToneL(TInt aFrequencyOne,

                           TInt aFrequencyTwo,

                           const TTimeIntervalMicroSeconds& aDuration);

        /**

        * Initializes the audio device and starts playing the DTMF string

        * aDTMFString.

        * Leaves on failure.

        * @since S60 3.0

        * @param const TDesC &aDTMFString The DTMF sequence in a descriptor.

        * @return void

        */

        void PlayDTMFStringL(const TDesC& aDTMFString);

        /**

        * Initializes the audio device and starts playing a tone sequence.

        * Leaves on failure.

        * @since S60 3.0

        * @param const TDesC8 &aData The tone sequence in a descriptor.

        * @return void

        */

        void PlayToneSequenceL(const TDesC8& aData);

        /**

        * Initializes the audio device and starts playing the specified

        * pre-defined tone sequence.

        * Leaves on failure.

        * @since S60 3.0

        * @param TInt aSequenceNumber The index identifying the specific

        *        pre-defined tone sequence. Index values are relative to zero.

        *        This can be any value from zero to the value returned by a call

        *        to FixedSequenceCount() - 1. The function raises a panic if the

        *        sequence number is not within this range.

        * @return void

        */

        void PlayFixedSequenceL(TInt aSequenceNumber);

        /**

        * Defines the number of times the audio is to be repeated during the

        * tone playback operation. A period of silence can follow each playing

        * of a tone. The tone playing can be repeated indefinitely

        * @since S60 3.0

        * @param TInt aRepeatCount The number of times the tone, together with

        *        the trailing silence, is to be repeated. If this is set to

        *        KMdaRepeatForever, then the tone, together with the trailing

        *        silence, is repeated indefinitely or until Stop() is called.

        *        If this is set to zero, then the tone is not repeated.

        * @param const TTimeIntervalMicroSeconds &aRepeatTrailingSilence An

        *        interval of silence which will be played after each tone.

        *        Supported only during tone playing.

        * @return void

        */

        void SetToneRepeats(

             TInt aRepeatCount,

             const TTimeIntervalMicroSeconds& aRepeatTrailingSilence);

        /**

        * Defines the duration of tone on, tone off and tone pause to be used

        * during the DTMF tone playback operation.

        * Supported only during tone playing.

        * @since S60 3.0

        * @param TTimeIntervalMicroSeconds32 &aToneOnLength The period over

        *        which the tone will be played. If this is set to zero, then the

        *        tone is not played.

        * @param TTimeIntervalMicroSeconds32 &aToneOffLength The period over

        *        which the no tone will be played.

        * @param TTimeIntervalMicroSeconds32 &aPauseLength The period over which

        *        the tone playing will be paused.

        * @return void

        */

        void SetDTMFLengths(TTimeIntervalMicroSeconds32& aToneOnLength,

                            TTimeIntervalMicroSeconds32& aToneOffLength,

                            TTimeIntervalMicroSeconds32& aPauseLength);

        /**

        * Defines the period over which the volume level is to rise smoothly

        * from nothing to the normal volume level.

        * The function is only available before playing.

        * @since S60 3.0

        * @param const TTimeIntervalMicroSeconds &aRampDuration The period over

        *        which the volume is to rise. A zero value causes the tone

        *        sample to be played at the normal level for the full duration

        *        of the playback. A value, which is longer than the duration of

        *        the tone sample means that the sample never reaches its normal

        *        volume level.

        * @return void

        */

        void SetVolumeRamp(const TTimeIntervalMicroSeconds& aRampDuration);

        /**

        * Defines the priority settings that should be used for this instance.

        * @since S60 3.0

        * @param const TMMFPrioritySettings &aPrioritySettings A class type

        *        representing the client's priority, priority preference and

        *        state

        * @return void

        */

        void SetPrioritySettings(const TMMFPrioritySettings& aPrioritySettings);

        /**

        * Retrieves a custom interface to the device.

        * @since S60 3.0

        * @param TUid aInterfaceId The interface UID, defined with the custom

        *        interface.

        * @return TAny* A pointer to the interface implementation, or NULL if

        *        the device does not implement the interface requested. The

        *        return value must be cast to the correct type by the user.

        */

        TAny* CustomInterface(TUid aInterfaceId);

        /**

        * Returns the number of available pre-defined tone sequences.

        * This is the number of fixed sequence supported by DevSound by default.

        * @since S60 3.0

        * @return TInt  The fixed sequence count. This value is implementation

        *        dependent.

        */

        TInt FixedSequenceCount();

        /**

        * Returns the name assigned to a specific pre-defined tone sequence.

        * This is the number of the fixed sequence supported by DevSound by

        * default.

        * The function raises a panic if sequence number specified is invalid.

        * @since S60 3.0

        * @param TInt aSequenceNumber The index identifying the specific

        *        pre-defined tone sequence. Index values are relative to zero.

        *        This can be any value from zero to the value returned by a call

        *        to CMdaAudioPlayerUtility::FixedSequenceCount() - 1. The

        *        function raises a panic if sequence number is not within this

        *        range.

        * @return const TDesC & A reference to a Descriptor containing the fixed

        *        sequence name indexed by aSequenceNumber.

        */

        const TDesC& FixedSequenceName(TInt aSequenceNumber);

        /**

        * Returns a list of the supported input datatypes that can be sent to