sl@0: // Copyright (c) 2001-2009 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: #include <mmf/plugin/mmfhwdeviceimplementationuids.hrh>
sl@0: #include "SoundDeviceBody.h"
sl@0: #include <mmf/server/mmfswcodecwrappercustominterfacesuids.hrh> // KUidRefDevSoundTaskConfig
sl@0: 
sl@0: const TInt KMaxMessageQueueItems = 8;
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Default Constructor.
sl@0:  *
sl@0:  *	No default implementation. CMMFDevSound implements 2-phase construction.
sl@0:  *
sl@0:  */
sl@0: CMMFDevSoundClientImp::CMMFDevSoundClientImp()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Destructor.
sl@0:  *
sl@0:  *	Deletes all objects and releases all resource owned by this
sl@0:  *	instance.
sl@0:  *
sl@0:  */
sl@0: CMMFDevSoundClientImp::~CMMFDevSoundClientImp()
sl@0: 	{
sl@0: 	// clear the array of custom interfaces
sl@0: 	for (TInt i = 0; i < iCustomInterfaceArray.Count(); i++)
sl@0: 		{
sl@0: 		iCustomInterfaceArray[i].iInterface->Release();
sl@0: 		}
sl@0: 	iCustomInterfaceArray.Reset();
sl@0: 	iCustomInterfaceArray.Close();
sl@0: 
sl@0: 	// delete the MUX utility
sl@0: 	delete iMuxUtility;
sl@0: 
sl@0: 	if (iMsgQueueHandler && iMsgQueueHandler->IsActive())
sl@0: 		{
sl@0: 		iMsgQueueHandler->Cancel();
sl@0: 		}
sl@0: 	delete iMsgQueueHandler;
sl@0: 
sl@0: 	iMsgQueue.Close();	
sl@0: 
sl@0: 	if( iDevSoundProxy != NULL)
sl@0: 		{
sl@0: 		iDevSoundProxy->Close();
sl@0: 		delete iDevSoundProxy;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Constructs, and returns a pointer to, a new CMMFDevSound object.
sl@0:  *
sl@0:  *	Leaves on failure.
sl@0:  *
sl@0:  */
sl@0: CMMFDevSoundClientImp* CMMFDevSoundClientImp::NewL()
sl@0: 	{
sl@0: 	CMMFDevSoundClientImp* self = new (ELeave) CMMFDevSoundClientImp();
sl@0: 	CleanupStack::PushL(self);
sl@0: 	self->ConstructL();
sl@0: 	CleanupStack::Pop(self);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	2nd phase constructor - assumes that iParent has already been set up properly.
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::ConstructL()
sl@0: 	{
sl@0: 	// all these data properties should be NULL, but add ASSERTs to verify
sl@0: 
sl@0: 	ASSERT(iDevSoundProxy==NULL);
sl@0: 	iDevSoundProxy = new (ELeave) RMMFDevSoundProxy();
sl@0: 
sl@0: 	TInt err = iMsgQueue.CreateGlobal(KNullDesC, KMaxMessageQueueItems);	// global, accessible to all that have its handle
sl@0: 	User::LeaveIfError(err);
sl@0: 	err = iDevSoundProxy->Open(iMsgQueue);
sl@0: 	if(err)
sl@0: 		{
sl@0: 		delete iDevSoundProxy;
sl@0: 		iDevSoundProxy = NULL;
sl@0: 		}
sl@0: 
sl@0: 	User::LeaveIfError(err);
sl@0: 
sl@0: 	// create MUX utility
sl@0: 	iMuxUtility = CMMFDevSoundCIMuxUtility::NewL(this);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Initializes CMMFDevSound object to play and record PCM16 raw audio data
sl@0:  *	with sampling rate of 8 KHz.
sl@0:  *
sl@0:  *	On completion of Initialization, calls InitializeComplete() on
sl@0:  *	aDevSoundObserver.
sl@0:  *
sl@0:  *	Leaves on failure.
sl@0:  *
sl@0:  *	@param	"MDevSoundObserver& aDevSoundObserver"
sl@0:  *			A reference to DevSound Observer instance.
sl@0:  *
sl@0:  *	@param	"TMMFState aMode"
sl@0:  *			Mode for which this object will be used.
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::InitializeL(MDevSoundObserver& aDevSoundObserver, TMMFState aMode)
sl@0: 
sl@0: 	{
sl@0: 	TInt initError = KErrNone;
sl@0: 	iDevSoundObserver = &aDevSoundObserver;
sl@0: 	initError = iDevSoundProxy->InitializeL(aMode);
sl@0: 
sl@0: 	if (initError)
sl@0: 		{
sl@0: 		User::Leave(initError);
sl@0: 		}
sl@0: 
sl@0: 	if (iMsgQueueHandler)
sl@0: 		{
sl@0: 		iMsgQueueHandler->Cancel();
sl@0: 		iMsgQueueHandler->SetObserver(*iDevSoundObserver);
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		iMsgQueueHandler = CMsgQueueHandler::NewL(iDevSoundProxy, *iDevSoundObserver, &iMsgQueue, *this);
sl@0: 		}
sl@0: 
sl@0: 	iMsgQueueHandler->ReceiveEvents();
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Configure CMMFDevSound object for the settings in aConfig.
sl@0:  *
sl@0:  *	Use this to set sampling rate, Encoding and Mono/Stereo.
sl@0:  *
sl@0:  *	@param	"TMMFCapabilities& aConfig"
sl@0:  *			Attribute values to which CMMFDevSound object will be configured to.
sl@0:  *
sl@0:  *  As part of defect 20796, the iRecordFormat has been set under the iPlayFormat, 
sl@0:  *  before it was not set at all.
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::SetConfigL(const TMMFCapabilities& aConfig)
sl@0: 	{
sl@0: 	iDevSoundProxy->SetConfigL(aConfig);
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Changes the current playback volume to a specified value.
sl@0:  *
sl@0:  *	The volume can be changed before or during playback and is effective
sl@0:  *	immediately.
sl@0:  *
sl@0:  *	@param	"TInt aVolume"
sl@0:  *			The volume setting. This can be any value from zero to the value
sl@0:  *			returned by a call to CMdaAudioPlayerUtility::MaxVolume(). If the
sl@0:  *			volume is not within this range, the volume is automatically set to
sl@0:  *			minimum or maximum value based on the value that is being passed.
sl@0:  *			Setting a zero value mutes the sound. Setting the maximum value
sl@0:  *			results in the loudest possible sound.
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::SetVolume(TInt aVolume)
sl@0: 	{
sl@0: 	iDevSoundProxy->SetVolume(aVolume);
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Changes the current recording gain to a specified value.
sl@0:  *
sl@0:  *	The gain can be changed before or during recording and is effective
sl@0:  *	immediately.
sl@0:  *
sl@0:  *	@param	"TInt aGain"
sl@0:  *			The volume setting. This can be any value from zero to the value
sl@0:  *			returned by a call to CMdaAudioPlayerUtility::MaxVolume(). If the
sl@0:  *			volume is not within this range, the gain is automatically set to
sl@0:  *			minimum or maximum value based on the value that is being passed.
sl@0:  *			Setting a zero value mutes the sound. Setting the maximum value
sl@0:  *			results in the loudest possible sound.
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::SetGain(TInt aGain)
sl@0: 	{
sl@0: 	iDevSoundProxy->SetGain(aGain);
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Sets the speaker balance for playing.
sl@0:  *
sl@0:  *	The speaker balance can be changed before or during playback and is
sl@0:  *	effective immediately.
sl@0:  *
sl@0:  *	@param	"TInt& aLeftPercentage"
sl@0:  *			On return contains left speaker volume perecentage. This can be any
sl@0:  *			value from zero to 100. Setting a zero value mutes the sound on left
sl@0:  *			speaker.
sl@0:  *
sl@0:  *	@param	"TInt& aRightPercentage"
sl@0:  *			On return contains right speaker volume perecentage. This can be any
sl@0:  *			value from zero to 100. Setting a zero value mutes the sound on
sl@0:  *			right speaker.
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::SetPlayBalanceL(TInt aLeftPercentage, TInt aRightPercentage)
sl@0: 	{
sl@0: 	iDevSoundProxy->SetPlayBalanceL(aLeftPercentage, aRightPercentage);
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Sets the microphone gain balance for recording.
sl@0:  *
sl@0:  *	The microphone gain balance can be changed before or during recording and
sl@0:  *	is effective immediately.
sl@0:  *
sl@0:  *	@param	"TInt aLeftPercentage"
sl@0:  *			Left microphone gain precentage. This can be any value from zero to
sl@0:  *			100. Setting a zero value mutes the gain on left microphone.
sl@0:  *
sl@0:  *	@param	"TInt aRightPercentage"
sl@0:  *			Right microphone gain precentage. This can be any value from zero to
sl@0:  *			100. Setting a zero value mutes the gain on right microphone.
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::SetRecordBalanceL(TInt aLeftPercentage, TInt aRightPercentage)
sl@0: 	{
sl@0: 	iDevSoundProxy->SetRecordBalanceL(aLeftPercentage, aRightPercentage);
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Initializes audio device and start play process. This method queries and
sl@0:  *	acquires the audio policy before initializing audio device. If there was an
sl@0:  *	error during policy initialization, PlayError() method will be called on
sl@0:  *	the observer with error code KErrAccessDenied, otherwise BufferToBeFilled()
sl@0:  *	method will be called with a buffer reference. After reading data into the
sl@0:  *	buffer reference passed, the client should call PlayData() to play data.
sl@0:  *
sl@0:  *	The amount of data that can be played is specified in
sl@0:  *	CMMFBuffer::RequestSize(). Any data that is read into buffer beyond this
sl@0:  *	size will be ignored.
sl@0:  *
sl@0:  *	Leaves on failure.
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::PlayInitL()
sl@0: 	{
sl@0: 	if (!iDevSoundObserver)
sl@0: 		User::Leave(KErrNotReady);
sl@0: 	iDevSoundProxy->PlayInitL();
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Initializes audio device and start record process. This method queries and
sl@0:  *	acquires the audio policy before initializing audio device. If there was an
sl@0:  *	error during policy initialization, RecordError() method will be called on
sl@0:  *	the observer with error code KErrAccessDenied, otherwise BufferToBeEmptied()
sl@0:  *	method will be called with a buffer reference. This buffer contains recorded
sl@0:  *	or encoded data. After processing data in the buffer reference passed, the
sl@0:  *	client should call RecordData() to continue recording process.
sl@0:  *
sl@0:  *	The amount of data that is available is specified in
sl@0:  *	CMMFBuffer::RequestSize().
sl@0:  *
sl@0:  *	Leaves on failure.
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::RecordInitL()
sl@0: 	{
sl@0: 
sl@0: 	if (!iDevSoundObserver)
sl@0: 		User::Leave(KErrNotReady);
sl@0: 	iDevSoundProxy->RecordInitL();
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Plays data in the buffer at the current volume. The client should fill
sl@0:  *	the buffer with audio data before calling this method. The Observer gets
sl@0:  *	reference to buffer along with callback BufferToBeFilled(). When playing of
sl@0:  *	the audio sample is complete, successfully or otherwise, the method
sl@0:  *	PlayError() on observer is called.
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::PlayData()
sl@0: 	{
sl@0: 	ASSERT(iDevSoundObserver);
sl@0: 	iDevSoundProxy->PlayData();
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Stops the ongoing operation (Play, Record, TonePlay, Convert)
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::Stop()
sl@0: 	{
sl@0: 	iDevSoundProxy->Stop();
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Temporarily Stops the ongoing operation (Play, Record, TonePlay, Convert)
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::Pause()
sl@0: 	{
sl@0: 	iDevSoundProxy->Pause();
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Returns the sample recorded so far.
sl@0:  *
sl@0:  *	@return "TInt"
sl@0:  *			Returns the samples recorded.
sl@0:  *
sl@0:  */
sl@0: TInt CMMFDevSoundClientImp::SamplesRecorded()
sl@0: 	{
sl@0: 	return iDevSoundProxy->SamplesRecorded();
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Returns the sample played so far.
sl@0:  *
sl@0:  *	@return "TInt"
sl@0:  *			Returns the samples recorded.
sl@0:  *
sl@0:  */
sl@0: TInt CMMFDevSoundClientImp::SamplesPlayed()
sl@0: 	{
sl@0: 	return iDevSoundProxy->SamplesPlayed();
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Initializes audio device and start playing tone. Tone is played with
sl@0:  *	frequency and for duration specified.
sl@0:  *
sl@0:  *	Leaves on failure.
sl@0:  *
sl@0:  *	@param	"TInt aFrequency"
sl@0:  *			Frequency at with the tone will be played.
sl@0:  *
sl@0:  *	@param	"TTimeIntervalMicroSeconds& aDuration"
sl@0:  *			The period over which the tone will be played. A zero value causes
sl@0:  *			the no tone to be played (Verify this with test app).
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::PlayToneL(TInt aFrequency, const TTimeIntervalMicroSeconds& aDuration)
sl@0: 	{
sl@0: 	iDevSoundProxy->PlayToneL(aFrequency, aDuration);
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *	Initializes audio device and start playing a dual tone. 
sl@0:  *  The tone consists of two sine waves of different frequencies summed together
sl@0:  *  Dual Tone is played with specified frequencies and for specified duration.
sl@0:  *
sl@0:  *	@param	"aFrequencyOne"
sl@0:  *			First frequency of dual tone
sl@0:  *
sl@0:  *	@param	"aFrequencyTwo"
sl@0:  *			Second frequency of dual tone
sl@0:  *
sl@0:  *	@param	"aDuration"
sl@0:  *			The period over which the tone will be played. A zero value causes
sl@0:  *			the no tone to be played (Verify this with test app).
sl@0:  */
sl@0: void CMMFDevSoundClientImp::PlayDualToneL(TInt aFrequencyOne, TInt aFrequencyTwo, const TTimeIntervalMicroSeconds& aDuration)
sl@0: 	{
sl@0: 	iDevSoundProxy->PlayDualToneL(aFrequencyOne, aFrequencyTwo, aDuration);
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Initializes audio device and start playing DTMF string aDTMFString.
sl@0:  *
sl@0:  *	Leaves on failure.
sl@0:  *
sl@0:  *	@param	"TDesC& aDTMFString"
sl@0:  *			DTMF sequence in a descriptor.
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::PlayDTMFStringL(const TDesC& aDTMFString)
sl@0: 	{
sl@0: 	if (!iDevSoundObserver)
sl@0: 		User::Leave(KErrNotReady);
sl@0: 
sl@0: 	iDevSoundProxy->PlayDTMFStringL(aDTMFString);
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Initializes audio device and start playing tone sequence.
sl@0:  *
sl@0:  *	Leaves on failure.
sl@0:  *
sl@0:  *	@param	"TDesC8& aData"
sl@0:  *			Tone sequence in a descriptor.
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::PlayToneSequenceL(const TDesC8& aData)
sl@0: 	{
sl@0: 	if (!iDevSoundObserver)
sl@0: 		User::Leave(KErrNotReady);
sl@0: 
sl@0: 	iDevSoundProxy->PlayToneSequenceL(aData);
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Initializes audio device and start playing the specified pre-defined tone
sl@0:  *	sequence.
sl@0:  *
sl@0:  *	Leaves on failure.
sl@0:  *
sl@0:  *	@param	"TInt aSequenceNumber"
sl@0:  *			The index identifying the specific pre-defined tone sequence. Index
sl@0:  *			values are relative to zero.
sl@0:  *			This can be any value from zero to the value returned by a call to
sl@0:  *			CMdaAudioPlayerUtility::FixedSequenceCount() - 1.
sl@0:  *			The function raises a panic if sequence number is not within this
sl@0:  *			range.
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::PlayFixedSequenceL(TInt aSequenceNumber)
sl@0: 	{
sl@0: 	if (!iDevSoundObserver)
sl@0: 		User::Leave(KErrNotReady);
sl@0: 
sl@0: 	iDevSoundProxy->PlayFixedSequenceL(aSequenceNumber);
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Defines the duration of tone on, tone off and tone pause to be used during the
sl@0:  *	DTMF tone playback operation.
sl@0:  *
sl@0:  *	Supported only during tone playing.
sl@0:  *
sl@0:  *	@param	"TTimeIntervalMicroSeconds32& aToneOnLength"
sl@0:  *			The period over which the tone will be played. If this is set to
sl@0:  *			zero, then the tone is not played.
sl@0:  *
sl@0:  *	@param	"TTimeIntervalMicroSeconds32& aToneOffLength"
sl@0:  *			The period over which the no tone will be played.
sl@0:  *
sl@0:  *	@param	"TTimeIntervalMicroSeconds32& aPauseLength"
sl@0:  *			The period over which the tone playing will be paused.
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::SetDTMFLengths(TTimeIntervalMicroSeconds32& aToneOnLength,
sl@0: 								TTimeIntervalMicroSeconds32& aToneOffLength,
sl@0: 								TTimeIntervalMicroSeconds32& aPauseLength) 
sl@0: 	{
sl@0: 	iDevSoundProxy->SetDTMFLengths(aToneOnLength, aToneOffLength, aPauseLength);
sl@0: 	}
sl@0: 
sl@0: /*
sl@0:  *
sl@0:  *	Defines the period over which the volume level is to rise smoothly from
sl@0:  *	nothing to the normal volume level.
sl@0:  *
sl@0:  *	@param	"TTimeIntervalMicroSeconds& aRampDuration"
sl@0:  *			The period over which the volume is to rise. A zero value causes 
sl@0:  *			the tone sample to be played at the normal level for the full
sl@0:  *			duration of the playback. A value, which is longer than the duration
sl@0:  *			of the tone sample, that the sample never reaches its normal
sl@0:  *			volume level.
sl@0:  *
sl@0:  *
sl@0:  */
sl@0: void CMMFDevSoundClientImp::SetVolumeRamp(const TTimeIntervalMicroSeconds& aRampDuration)
sl@0: 	{
sl@0: 	iDevSoundProxy->SetVolumeRamp(aRampDuration);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /**
sl@0:  *	@see sounddevice.h
sl@0:  */
sl@0: void CMMFDevSoundClientImp::GetSupportedInputDataTypesL(RArray<TFourCC>& aSupportedDataTypes, const TMMFPrioritySettings& aPrioritySettings) const
sl@0: 	{
sl@0: 	iDevSoundProxy->GetSupportedInputDataTypesL(aSupportedDataTypes, aPrioritySettings);
sl@0: 	}
sl@0: 
sl@0: /**
sl@0:  *	@see sounddevice.h
sl@0:  */
sl@0: void CMMFDevSoundClientImp::GetSupportedOutputDataTypesL(RArray<TFourCC>& aSupportedDataTypes, const TMMFPrioritySettings& aPrioritySettings) const
sl@0: 	{
sl@0: 	iDevSoundProxy->GetSupportedOutputDataTypesL(aSupportedDataTypes, aPrioritySettings);
sl@0: 	}
sl@0: 
sl@0: /**
sl@0:  *	@see sounddevice.h
sl@0:  */
sl@0: TInt CMMFDevSoundClientImp::SetClientThreadInfo(TThreadId aTid)
sl@0: 	{
sl@0: 	return iDevSoundProxy->SetClientThreadInfo(aTid);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TInt CMMFDevSoundClientImp::RegisterAsClient(TUid aEventType, const TDesC8& aNotificationRegistrationData)
sl@0: 	{
sl@0: 	return iDevSoundProxy->RegisterAsClient(aEventType,aNotificationRegistrationData);
sl@0: 	}
sl@0: 	
sl@0: TInt CMMFDevSoundClientImp::CancelRegisterAsClient(TUid aEventType)
sl@0: 	{
sl@0: 	return iDevSoundProxy->CancelRegisterAsClient(aEventType);
sl@0: 	}
sl@0: 	
sl@0: TInt CMMFDevSoundClientImp::GetResourceNotificationData(TUid aEventType,TDes8& aNotificationData)
sl@0: 	{
sl@0: 	return iDevSoundProxy->GetResourceNotificationData(aEventType,aNotificationData);
sl@0: 	}
sl@0: 	
sl@0: TInt CMMFDevSoundClientImp::WillResumePlay()
sl@0: 	{
sl@0: 	return iDevSoundProxy->WillResumePlay();
sl@0: 	}
sl@0: 
sl@0: TInt CMMFDevSoundClientImp::EmptyBuffers()
sl@0: 	{
sl@0: 	return iDevSoundProxy->EmptyBuffers();
sl@0: 	}
sl@0: 
sl@0: TInt CMMFDevSoundClientImp::GetTimePlayed(TTimeIntervalMicroSeconds& aTime)
sl@0: 	{
sl@0: 	return iDevSoundProxy->GetTimePlayed(aTime);
sl@0: 	}
sl@0: /*
sl@0:  *
sl@0:  *	Returns a given Custom Interface on the DevSound based on the UID
sl@0:  *  If this is not recognised then the custominterface is created by
sl@0:  *  a pair of ECOM plugins.
sl@0:  *
sl@0:  *  @released
sl@0:  *  @param	"TUid aInterfaceId"
sl@0:  *			The UID of the required Custom Interface
sl@0:  *  @return a pointer to the custom interface
sl@0:  *
sl@0:  */
sl@0: TAny* CMMFDevSoundClientImp::CustomInterface(TUid aInterfaceId)
sl@0: 	{
sl@0: 	// check if this UID refers to auto/pause/resume
sl@0: 	if (aInterfaceId == KMmfUidDevSoundAudioResourceCustomInterface)
sl@0: 		{
sl@0: 		MAutoPauseResumeSupport* result = this; 
sl@0: 		return result;
sl@0: 		}
sl@0: 	if (aInterfaceId == KMmfUidDevSoundEmptyBuffersCustomInterface)
sl@0: 		{
sl@0: 		MMMFDevSoundEmptyBuffers* result = this; 
sl@0: 		return result;
sl@0: 		}		
sl@0: 	if (aInterfaceId == KMmfUidDevSoundAudioClientThreadInfoCustomInterface)
sl@0: 		{
sl@0: 		MAudioClientThreadInfo* result = this;
sl@0: 		return result;
sl@0: 		}
sl@0: 
sl@0: 	if (aInterfaceId == KMmfUidDevSoundTimePlayedCustomInterface)
sl@0: 		{
sl@0: 		MMMFDevSoundTimePlayed* result = this;
sl@0: 		return result;
sl@0: 		}	
sl@0: 		
sl@0: 	// we are being asked for a Custom Interface not natively supported 
sl@0: 	// by the DevSound plugin.  
sl@0: 	
sl@0: 	// first check if we already have resolved a custom interface of this type
sl@0: 	TInt index = FindCustomInterface(aInterfaceId);
sl@0: 	
sl@0: 	MMMFDevSoundCustomInterfaceMuxPlugin* ptr = NULL;
sl@0: 		
sl@0: 	// if we found the interface, take a copy of this instead
sl@0: 	if (index != KNullHandle)
sl@0: 		{
sl@0: 		// check our index is valid
sl@0: 		ptr = iCustomInterfaceArray[index-1].iInterface;
sl@0: 		if (ptr)		
sl@0: 			{
sl@0: 			return ptr->CustomInterface(aInterfaceId);
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			// we may not need this code because this 
sl@0: 			// *should* be impossible to reach
sl@0: 			return NULL;
sl@0: 			}
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		// else try and instantiate a plugin tunnelling
sl@0: 		// pair to support this Custom Interface
sl@0: 		TRAPD(err, ptr = iMuxUtility->CreateCustomInterfaceMuxL(aInterfaceId));
sl@0: 	
sl@0: 		if (ptr && (err == KErrNone))
sl@0: 			{
sl@0: 			TMMFDevSoundCustomInterfaceData data;
sl@0: 			data.iInterface = ptr;
sl@0: 			data.iId = aInterfaceId;
sl@0: 			
sl@0: 			// attempt to open remote demux
sl@0: 			// this will store a handle in the mux plugin if successful
sl@0: 			// and also return it here - invalid handle = -1
sl@0: 			data.iHandle = ptr->OpenInterface(aInterfaceId);
sl@0: 			
sl@0: 			// if the handle is greater than zero then we know we have
sl@0: 			// successfully opened the interface
sl@0: 			if (data.iHandle > KNullHandle)
sl@0: 				{	
sl@0: 				// append this to the current interface list
sl@0: 				TInt err = KErrNone;
sl@0: 				err = iCustomInterfaceArray.Append(data);
sl@0: 				if (err == KErrNone)
sl@0: 					{
sl@0: 					// return the custom interface on the ptr
sl@0: 					return ptr->CustomInterface(aInterfaceId);
sl@0: 					}
sl@0: 				}
sl@0: 					
sl@0: 				// no memory or other problem so shut down interface
sl@0: 				ptr->Release();
sl@0: 				ptr = NULL;
sl@0: 			}
sl@0: 		}
sl@0: 		
sl@0: 		// if code gets here then we don't support the interface
sl@0: 		// so we can pass it onto the DevSound proxy so that we 
sl@0: 		// can attempt to resolve the interface externally
sl@0: 		return iDevSoundProxy->CustomInterface(aInterfaceId);	
sl@0: 	}
sl@0: 
sl@0: TInt CMMFDevSoundClientImp::FindCustomInterface(TUid aInterfaceId)
sl@0: 	{
sl@0: 	TInt index = KNullHandle;
sl@0: 	
sl@0: 	for (TInt i = 0; i < iCustomInterfaceArray.Count(); i++)
sl@0: 		{
sl@0: 		if (iCustomInterfaceArray[i].iId == aInterfaceId)
sl@0: 			{
sl@0: 			index = i+1; // use index+1 as the handle, so 0 is undefined/not-found
sl@0: 			break;
sl@0: 			}
sl@0: 		}
sl@0: 	
sl@0: 	return index;
sl@0: 	}
sl@0: 
sl@0: void CMMFDevSoundClientImp::CloseCustomInterface(TInt aIndex)
sl@0: 	{
sl@0: 	for (TInt i = 0; i < iCustomInterfaceArray.Count(); i++)
sl@0: 		{
sl@0: 		if(iCustomInterfaceArray[i].iHandle == aIndex)
sl@0: 			{
sl@0: 			iCustomInterfaceArray[i].iInterface->Release();	
sl@0: 			iCustomInterfaceArray.Remove(i);
sl@0: 			break;
sl@0: 			}
sl@0: 		}
sl@0: 	}