sl@0: // Copyright (c) 2002-2009 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 "MmfAudioInput.h"
sl@0: #include <ecom/implementationproxy.h>
sl@0: #include <mmf/server/mmfformat.h>
sl@0: #include <mmf/plugin/mmfaudioiointerfaceuids.hrh>
sl@0: 
sl@0: 
sl@0: void Panic(TInt aPanicCode)
sl@0: 	{
sl@0: 	_LIT(KMMFAudioInputPanicCategory, "MMFAudioInput");
sl@0: 	User::Panic(KMMFAudioInputPanicCategory, aPanicCode);
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Static standard SymbianOS 2 phase constuction method.
sl@0: 
sl@0: Constucts this audio device.
sl@0: 
sl@0: @return A pointer to a MDataSource returned on successful construction.
sl@0: */
sl@0: MDataSource* CMMFAudioInput::NewSourceL()
sl@0: 	{
sl@0: 	CMMFAudioInput* self = new (ELeave) CMMFAudioInput ;
sl@0: 	CleanupStack::PushL(self);
sl@0: 	self->ConstructL();
sl@0: 	CleanupStack::Pop();
sl@0: 	return  STATIC_CAST( MDataSource*, self );
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Standard SymbianOS ConstructL.
sl@0: 
sl@0: Used to initialise member varibles with device specific behaviour.
sl@0: */
sl@0: void CMMFAudioInput::ConstructL()
sl@0: 	{
sl@0: 	iDataTypeCode = KMMFFourCCCodePCM16;
sl@0: 	iActiveSchedulerWait = new(ELeave) CActiveSchedulerWait;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Standard SymbianOS destructor.
sl@0: */
sl@0: CMMFAudioInput::~CMMFAudioInput()
sl@0: 	{
sl@0: 	delete iActiveSchedulerWait;
sl@0: 	if (iMMFDevSound)
sl@0: 		{
sl@0: 		iMMFDevSound->Stop();
sl@0: 		delete iMMFDevSound;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /**
sl@0: Overridable constuctor specific to this datasource.
sl@0: 
sl@0: @param  aInitData
sl@0:         The initialisation data.
sl@0: */
sl@0: void CMMFAudioInput::ConstructSourceL( const TDesC8& /*aInitData*/ ) 
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: @deprecated
sl@0: 
sl@0: Gets audio from hardware device abstracted MMFDevsound (not used).
sl@0: 
sl@0: @param  aBuffer
sl@0:         The data to read in from a Hardware Device
sl@0: @param  aConsumer
sl@0:         The MDataSink consuming the data contained in aBuffer.
sl@0: */
sl@0: void CMMFAudioInput::HWFillBufferL(CMMFBuffer* /*aBuffer*/, MDataSink* /*aConsumer*/)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /**
sl@0: Gets audio from MMFDevsound.
sl@0: 
sl@0: @pre
sl@0: iMMFDevSound must be loaded.
sl@0: 
sl@0: @param  aBuffer
sl@0:         The data to read in from a Devsound device.
sl@0: @param  aConsumer
sl@0:         The MDataSink consuming the data contained in aBuffer.
sl@0: @param  aMediaId
sl@0:         Type of data supplied - currently ignored.
sl@0: */
sl@0: void CMMFAudioInput::FillBufferL(CMMFBuffer* aBuffer, MDataSink* aConsumer, TMediaId /* aMediaId */)
sl@0: 	{
sl@0: 	iConsumer = aConsumer;
sl@0: 
sl@0: 	if (!iMMFDevSound)
sl@0: 		Panic(EMMFAudioInputDevSoundNotLoaded);
sl@0: 	
sl@0: 	if ((iState == EPaused) && (iPausePending != EFalse) && (iFirstBufferRequested) )
sl@0:   		{
sl@0:   		User::Leave(KErrNotReady);
sl@0:   		}
sl@0: 
sl@0: 	if ((aBuffer != NULL) && (!CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type())))
sl@0: 		User::Leave(KErrNotSupported);
sl@0: 
sl@0: 	if (aConsumer == NULL)
sl@0: 		User::Leave(KErrArgument);
sl@0: 
sl@0: 	//this is a one-shot "prime" funtion for MMFDevSound as first buffer is uninitialised
sl@0: 	if (!iFirstBufferRequested)
sl@0: 		{
sl@0: 		iMMFDevSound->RecordInitL();
sl@0: 		iFirstBufferRequested = ETrue;
sl@0: 		return;
sl@0: 		}
sl@0: 
sl@0: 	if (iState != EDevSoundReady && iState != EPaused)
sl@0: 		{
sl@0: 		User::Leave(KErrNotReady);
sl@0: 		}
sl@0: 
sl@0: 	iMMFDevSound->RecordData();
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Indicates the data sink has emptied the buffer.
sl@0: 
sl@0: Called by the data path's MDataSink when it has emptied the buffer.
sl@0: 
sl@0: The default implementation is empty.
sl@0: 
sl@0: @param  aBuffer
sl@0:         The data buffer that has been emptied (not used).
sl@0: */
sl@0: void CMMFAudioInput::BufferEmptiedL(CMMFBuffer* /*aBuffer*/)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /**
sl@0: Tests whether a source buffer can be created.
sl@0: 
sl@0: The default imlpementation returns true.
sl@0: 
sl@0: @return	A boolean indicating if the buffer can be made. ETrue if the buffer can be created, false
sl@0:         otherwise.
sl@0: */
sl@0: TBool CMMFAudioInput::CanCreateSourceBuffer()
sl@0: 	{
sl@0: 	return ETrue;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Creates a source buffer.
sl@0: 
sl@0: Intended for asynchronous usage (buffers supplied by Devsound device)
sl@0: 
sl@0: @param  aMediaId
sl@0: 		The Media ID. Not used in the default implementation.
sl@0: @param  aReference
sl@0:         A boolean indicating if MDataSource owns the buffer. ETrue if it does, EFalse if it does 
sl@0:         not.
sl@0: 
sl@0: @return The buffer created (this will always be NULL when asychronous).
sl@0: */
sl@0: CMMFBuffer* CMMFAudioInput::CreateSourceBufferL(TMediaId /*aMediaId*/, TBool &aReference)
sl@0: 	{
sl@0: 	CMMFDataBuffer* buf = NULL;
sl@0: 
sl@0: 	aReference = ETrue; // This is a reference from DevSound
sl@0: 	return buf;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Creates a source buffer.
sl@0: 
sl@0: Intended for synchronous usage.
sl@0: 
sl@0: @param  aMediaId
sl@0:         The Media ID. Not used in the default implementation.
sl@0: 
sl@0: @return The buffer created
sl@0: */
sl@0: CMMFBuffer* CMMFAudioInput::CreateSourceBufferL(TMediaId /*aMediaId*/)
sl@0: 	{
sl@0: 	CMMFDataBuffer* buf = CMMFDataBuffer::NewL(KAudioInputDefaultFrameSize);
sl@0: 	return buf;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /**
sl@0: Primes the source.
sl@0: 
sl@0: This is a virtual function that each derived class must implement, but may be left blank for
sl@0: default behaviour.
sl@0: 
sl@0: Overridable PrimeL method. Additional Prime method specific to this DataSource.
sl@0: */
sl@0: void CMMFAudioInput::SourcePrimeL()
sl@0: 	{
sl@0: 	iState = EDevSoundReady;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Pauses the source.
sl@0: 
sl@0: This is a virtual function that each derived class must implement, but may be left blank for default 
sl@0: behaviour.
sl@0: 
sl@0: Overridable PauseL method. Additional Pause method specific to this DataSource.
sl@0: */
sl@0: void CMMFAudioInput::SourcePauseL()
sl@0: 	{
sl@0: 	if (iState == EDevSoundReady)
sl@0: 		{//not waiting on a buffer being played so stop devsound now
sl@0: 		iState = EPaused;
sl@0: 		if (iFirstBufferRead)
sl@0: 			{
sl@0: 			if (!iMMFDevSound)
sl@0: 				Panic(EMMFAudioInputDevSoundNotLoaded);
sl@0: 			else
sl@0: 				iMMFDevSound->Pause();
sl@0: 			}
sl@0: 		else
sl@0: 			iPausePending = ETrue; // Wait for recording to get started.
sl@0: 		}
sl@0: 	//else if Devsound isn't ready then no point in stopping it
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /**
sl@0: Stops the source.
sl@0: 
sl@0: This is a virtual function that each derived class must implement, but may be left blank for default 
sl@0: behaviour.
sl@0: 
sl@0: Overridable StopL method. Additional Stop method specific to this DataSource.
sl@0: */
sl@0: void CMMFAudioInput::SourceStopL()
sl@0: 	{
sl@0: 	iStopped = ETrue;
sl@0: 	// This is done in Audio Output as well, not sure whether its needed here or not.
sl@0: 	// Pause will be called before SourceStopL() and pause will take care of closing
sl@0: 	// DevSound
sl@0: 	if (iState == EDevSoundReady  || iState == EPaused)
sl@0: 		{//not waiting on a buffer being played so stop devsound now
sl@0: 		iState = EIdle;
sl@0: 		if (iFirstBufferRequested)
sl@0: 			{
sl@0: 			if (!iMMFDevSound)
sl@0: 				Panic(EMMFAudioInputDevSoundNotLoaded);
sl@0: 			else
sl@0: 				{
sl@0: 				iMMFDevSound->Stop();
sl@0: 				}
sl@0: 
sl@0: 			iFirstBufferRequested = EFalse;
sl@0: 			iFirstBufferRead = EFalse;
sl@0: 			}
sl@0: 		}
sl@0: 	//else if Devsound isn't ready then no point in stopping it
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Plays the source.
sl@0: 
sl@0: This is a virtual function that each derived class must implement, but may be left blank for default
sl@0: behaviour.
sl@0: 
sl@0: Overridable PlayL method. Additional Play method specific to this DataSource.
sl@0: */
sl@0: void CMMFAudioInput::SourcePlayL()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Logs on the source thread.
sl@0: 
sl@0: Thread specific initialization procedure for this device. Runs automatically on thread construction.
sl@0: 
sl@0: @param  aEventHandler
sl@0:         The event handler.
sl@0: 
sl@0: @return An error code indicating if the function call was successful. KErrNone on success, otherwise
sl@0:         another of the system-wide error codes.
sl@0: */
sl@0: TInt CMMFAudioInput::SourceThreadLogon(MAsyncEventHandler& aEventHandler)
sl@0: 	{
sl@0: 	iEventHandler = &aEventHandler;
sl@0: 	TInt err = KErrNone;
sl@0: 	if (!iDevSoundLoaded)
sl@0: 		TRAP(err, LoadL());
sl@0: 	return err;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Logs off the source thread.
sl@0: 
sl@0: Thread specific destruction procedure for this device. Runs automatically on thread destruction.
sl@0: */
sl@0: void CMMFAudioInput::SourceThreadLogoff()
sl@0: 	{
sl@0: 	if(iMMFDevSound)
sl@0: 		{
sl@0: 		iMMFDevSound->Stop();
sl@0: 		delete iMMFDevSound;
sl@0: 		iMMFDevSound = NULL;
sl@0: 		}
sl@0: 	iDevSoundLoaded = EFalse;
sl@0: 	iState = EIdle;
sl@0: 	}
sl@0: 
sl@0: /*
sl@0: @internaTechnology
sl@0: 
sl@0: @pre
sl@0: dev sound should be created and loaded.
sl@0: */
sl@0: void CMMFAudioInput::ConfigDevSoundL()
sl@0: 	{
sl@0: 	//[precondition dev sound created ]
sl@0: 	ASSERT( iMMFDevSound );
sl@0: 
sl@0: 	// Query DevSound capabilities and Try to use DevSound sample rate and 
sl@0: 	// mono/stereo capability
sl@0: 	TMMFCapabilities devSoundCaps = iMMFDevSound->Capabilities();
sl@0: 	// get current config
sl@0: 	TMMFCapabilities devSoundConfig = iMMFDevSound->Config();
sl@0: 
sl@0: 	// Default PCM16
sl@0: 	devSoundConfig.iEncoding = EMMFSoundEncoding16BitPCM;
sl@0: 
sl@0: 	// 1 = Monophonic and 2 == Stereo
sl@0: 	if (((iSinkChannels == 1) && (devSoundCaps.iChannels & EMMFMono)) ||
sl@0: 		((iSinkChannels == 2) && (devSoundCaps.iChannels & EMMFStereo)))
sl@0: 		devSoundConfig.iChannels = iSinkChannels;
sl@0: 
sl@0: 
sl@0: 	// Check for std sample rates.
sl@0: 	if ((iSinkSampleRate == 96000) && (devSoundCaps.iRate & EMMFSampleRate96000Hz))
sl@0: 		devSoundConfig.iRate = EMMFSampleRate96000Hz;
sl@0: 	else if ((iSinkSampleRate == 88200) && (devSoundCaps.iRate & EMMFSampleRate88200Hz))
sl@0: 		devSoundConfig.iRate = EMMFSampleRate88200Hz;
sl@0: 	else if ((iSinkSampleRate == 64000) && (devSoundCaps.iRate & EMMFSampleRate64000Hz))
sl@0: 		devSoundConfig.iRate = EMMFSampleRate64000Hz;
sl@0: 	else if ((iSinkSampleRate == 48000) && (devSoundCaps.iRate & EMMFSampleRate48000Hz))
sl@0: 		devSoundConfig.iRate = EMMFSampleRate48000Hz;
sl@0: 	else if ((iSinkSampleRate == 44100) && (devSoundCaps.iRate & EMMFSampleRate44100Hz))
sl@0: 		devSoundConfig.iRate = EMMFSampleRate44100Hz;
sl@0: 	else if ((iSinkSampleRate == 32000) && (devSoundCaps.iRate & EMMFSampleRate32000Hz))
sl@0: 		devSoundConfig.iRate = EMMFSampleRate32000Hz;
sl@0: 	else if ((iSinkSampleRate == 24000) && (devSoundCaps.iRate & EMMFSampleRate24000Hz))
sl@0: 		devSoundConfig.iRate = EMMFSampleRate24000Hz;
sl@0: 	else if ((iSinkSampleRate == 22050) && (devSoundCaps.iRate & EMMFSampleRate22050Hz))
sl@0: 		devSoundConfig.iRate = EMMFSampleRate22050Hz;
sl@0: 	else if ((iSinkSampleRate == 16000) && (devSoundCaps.iRate & EMMFSampleRate16000Hz))
sl@0: 		devSoundConfig.iRate = EMMFSampleRate16000Hz;
sl@0: 	else if ((iSinkSampleRate == 12000) && (devSoundCaps.iRate & EMMFSampleRate12000Hz))
sl@0: 		devSoundConfig.iRate = EMMFSampleRate12000Hz;
sl@0: 	else if ((iSinkSampleRate == 11025) && (devSoundCaps.iRate & EMMFSampleRate11025Hz))
sl@0: 		devSoundConfig.iRate = EMMFSampleRate11025Hz;
sl@0: 	else if ((iSinkSampleRate == 8000) && (devSoundCaps.iRate & EMMFSampleRate8000Hz))
sl@0: 		devSoundConfig.iRate = EMMFSampleRate8000Hz; 
sl@0: 	else 
sl@0: 		{
sl@0: 		// pick the maximum sample rate available
sl@0: 		if (devSoundCaps.iRate & EMMFSampleRate96000Hz)
sl@0: 			devSoundConfig.iRate = EMMFSampleRate96000Hz;
sl@0: 		else if (devSoundCaps.iRate & EMMFSampleRate88200Hz)
sl@0: 			devSoundConfig.iRate = EMMFSampleRate88200Hz;
sl@0: 		else if (devSoundCaps.iRate & EMMFSampleRate64000Hz)
sl@0: 			devSoundConfig.iRate = EMMFSampleRate64000Hz;
sl@0: 		else if (devSoundCaps.iRate & EMMFSampleRate48000Hz)
sl@0: 			devSoundConfig.iRate = EMMFSampleRate48000Hz;
sl@0: 		else if (devSoundCaps.iRate & EMMFSampleRate44100Hz)
sl@0: 			devSoundConfig.iRate = EMMFSampleRate44100Hz;
sl@0: 		else if (devSoundCaps.iRate & EMMFSampleRate32000Hz)
sl@0: 			devSoundConfig.iRate = EMMFSampleRate32000Hz;
sl@0: 		else if (devSoundCaps.iRate & EMMFSampleRate24000Hz)
sl@0: 			devSoundConfig.iRate = EMMFSampleRate24000Hz;
sl@0: 		else if (devSoundCaps.iRate & EMMFSampleRate22050Hz)
sl@0: 			devSoundConfig.iRate = EMMFSampleRate22050Hz;
sl@0: 		else if (devSoundCaps.iRate & EMMFSampleRate16000Hz)
sl@0: 			devSoundConfig.iRate = EMMFSampleRate16000Hz;
sl@0: 		else if (devSoundCaps.iRate & EMMFSampleRate12000Hz)
sl@0: 			devSoundConfig.iRate = EMMFSampleRate12000Hz;
sl@0: 		else if (devSoundCaps.iRate & EMMFSampleRate11025Hz)
sl@0: 			devSoundConfig.iRate = EMMFSampleRate11025Hz;
sl@0: 		else if (devSoundCaps.iRate & EMMFSampleRate8000Hz)
sl@0: 			devSoundConfig.iRate = EMMFSampleRate8000Hz;
sl@0: 		else
sl@0: 			ASSERT(EFalse); // if we don't support any sample rates, there is not much we can do
sl@0: 		
sl@0: 		}
sl@0: 
sl@0: 	iMMFDevSound->SetConfigL(devSoundConfig);
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Negotiates with the sink.
sl@0: 
sl@0: Called if the source's setup depends on sink.
sl@0: 
sl@0: @param  aSink
sl@0:         The Data sink. Takes an MDataSink reference so a DataSource can negotiate with this
sl@0:         MDataSource.
sl@0: */
sl@0: void CMMFAudioInput::NegotiateSourceL(MDataSink& aSink)
sl@0: 	{
sl@0: 	if (aSink.DataSinkType() == KUidMmfFormatEncode) 
sl@0: 		{//sink is a clip so for now set sink settings to match sink
sl@0: 		iSinkSampleRate = ((CMMFFormatEncode&)aSink).SampleRate(); 
sl@0: 		iSinkChannels = ((CMMFFormatEncode&)aSink).NumChannels();
sl@0: 		iSinkFourCC.Set(aSink.SinkDataTypeCode(TMediaId(KUidMediaTypeAudio)));
sl@0: 
sl@0: 		// if the sink's sample rate is undefined, try to obtain and use a
sl@0: 		// default sample rate from the sink. If this is zero, use 8K
sl@0: 		if (iSinkSampleRate == 0)
sl@0: 			{
sl@0: 			iSinkSampleRate = ((CMMFFormatEncode&)aSink).GetDefaultSampleRate(); 
sl@0: 			if (iSinkSampleRate == 0)
sl@0: 				iSinkSampleRate = 8000;
sl@0: 			}
sl@0: 		
sl@0: 		}
sl@0: 
sl@0: 	if (iMMFDevSound == NULL)
sl@0:   		User::Leave(KErrNotReady);
sl@0: 
sl@0: 	TMMFState prioritySettingsState = iPrioritySettings.iState; //should be EMMFStateRecording
sl@0: 	//to use the GetSupportedOutputDatatypes but we'll save it just in case it's not
sl@0: 	iPrioritySettings.iState = EMMFStateRecording; //if playing does not support any output data types
sl@0: 	RArray<TFourCC> supportedDataTypes;
sl@0: 	//note Output data types becuase if we are recording audio ie audio input
sl@0: 	//the data is sent as an output from DevSound
sl@0: 	TRAPD(err, iMMFDevSound->GetSupportedOutputDataTypesL(supportedDataTypes, iPrioritySettings));
sl@0: 	iPrioritySettings.iState = prioritySettingsState;
sl@0: 	if (err == KErrNone)
sl@0: 		{
sl@0: 		if (supportedDataTypes.Find(iSinkFourCC) == KErrNotFound)
sl@0: 			{//the source fourCC code could not be found in the list of 
sl@0: 			//data types supported by the Devsound therefor default to pcm16
sl@0: 			iDataTypeCode = KMMFFourCCCodePCM16;	
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			//the DevSound does support the same datatype as the source 
sl@0: 			//so set the fourcc to that of the source
sl@0: 			iDataTypeCode = iSinkFourCC;
sl@0: 			}
sl@0: 		}
sl@0: 	supportedDataTypes.Close();
sl@0: 	if (err == KErrNotSupported)
sl@0: 		{//if the Devsound does not support the GetSupportedOutputDataTypesL method
sl@0: 		//then assume that the DevSound is pcm16 only
sl@0: 		iDataTypeCode = KMMFFourCCCodePCM16;	
sl@0: 		}
sl@0: 	else if (err != KErrNone) //we had a real leave error from GetSupportedOuputDataTypesL
sl@0: 		{
sl@0: 		User::Leave(err);
sl@0: 		}
sl@0: 
sl@0:     // Prevent defect when SourcePrimeL is called before NegotiateSourceL()
sl@0: 	// since characterization is ambiguous
sl@0:     if(iState == EDevSoundReady)
sl@0:       {
sl@0:       iState = EIdle;
sl@0:       }
sl@0: 
sl@0:   	// moved from LoadL - fix for DEF037168 - AD
sl@0: 	iMMFDevSound->InitializeL(*this, iDataTypeCode, EMMFStateRecording);
sl@0: 
sl@0: 	// In some implementations InitializeComplete is sent
sl@0: 	// in context, so check before starting activeSchedulerWait.
sl@0: 	if (iState != EDevSoundReady)
sl@0: 		{
sl@0: 		iInitializeState = KRequestPending;
sl@0: 		iActiveSchedulerWait->Start();
sl@0: 		}		
sl@0: 	User::LeaveIfError(iInitializeState);
sl@0: 
sl@0: 	iMMFDevSound->SetPrioritySettings(iPrioritySettings);
sl@0: 
sl@0: 	// Attempt to configure DevSound to the same settings as the sink.
sl@0: 	// Need to do this after calling CMMFDevSound::InitializeL() as
sl@0: 	// this sets up the device capabilities 
sl@0: 	// (returned by iMMFDevSound->Capabilities()).
sl@0: 	ConfigDevSoundL();
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Sets the source's priority settings.
sl@0: 
sl@0: @param  aPrioritySettings
sl@0:         The source priority settings. Takes enumerations to determine audio record priority. Higher 
sl@0:         numbers mean high priority (can interrupt lower priorities).
sl@0: */
sl@0: void CMMFAudioInput::SetSourcePrioritySettings(const TMMFPrioritySettings& aPrioritySettings)
sl@0: 	{
sl@0: 	iPrioritySettings = aPrioritySettings;
sl@0: 	if (!iMMFDevSound)
sl@0: 		Panic(EMMFAudioInputDevSoundNotLoaded);
sl@0: 	else
sl@0: 		iMMFDevSound->SetPrioritySettings(iPrioritySettings);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /**
sl@0: Gets the data type code for the source specified by the media ID.
sl@0: 
sl@0: @param  aMediaId
sl@0:         An optional parameter to specifiy a specific stream when the datasource contains more than
sl@0:         one stream of data.
sl@0: 
sl@0: @return The 4CC of the data supplied by this source.
sl@0: */
sl@0: TFourCC CMMFAudioInput::SourceDataTypeCode(TMediaId /*aMediaId*/)
sl@0: 	{
sl@0: 	return iDataTypeCode;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Sets the data type code for the source.
sl@0: 
sl@0: @param  aSourceFourCC
sl@0:         The 4CC of the data supplied by this source.
sl@0: @param  aMediaId
sl@0:         The Media ID. An optional parameter to specifiy specific stream when datasource contains
sl@0:         more than one stream of data.
sl@0: 
sl@0: @return An error code indicating if the function call was successful. KErrNone on success, otherwise
sl@0:         another of the system-wide error codes.
sl@0: */
sl@0: TInt CMMFAudioInput::SetSourceDataTypeCode(TFourCC aSourceFourCC, TMediaId /*aMediaId*/)
sl@0: 	{
sl@0: 	iDataTypeCode = aSourceFourCC;
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Gets the number of bytes played.
sl@0: 
sl@0: @return	The number of bytes played. If 16-bit divide this number returned by 2 to get word length.
sl@0: */
sl@0: TInt CMMFAudioInput::BytesPlayed()
sl@0: 	{
sl@0: 	if (!iMMFDevSound)
sl@0: 		Panic(EMMFAudioInputDevSoundNotLoaded);
sl@0: 	return iMMFDevSound->SamplesPlayed();
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Returns the sound device.
sl@0: 
sl@0: @pre
sl@0: Dev Sound should be loaded.
sl@0: 
sl@0: Accessor function exposing public CMMFDevsound methods.
sl@0: 
sl@0: @return A reference to a CMMFDevSound objector.
sl@0: */
sl@0: CMMFDevSound& CMMFAudioInput::SoundDevice()
sl@0: 	{
sl@0: 	if (!iMMFDevSound)
sl@0: 		{
sl@0: 		Panic(EMMFAudioInputDevSoundNotLoaded);
sl@0: 		}
sl@0: 	return *iMMFDevSound;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /**
sl@0: @deprecated
sl@0: 
sl@0: This method should not be used - it is provided to maintain SC with v7.0s.
sl@0: 
sl@0: @param  aAudioType
sl@0:         The 4CC of the data supplied by this source.
sl@0: */
sl@0: void CMMFAudioInput::SetDataTypeL(TFourCC aAudioType)
sl@0: 	{
sl@0: 	if (aAudioType != KMMFFourCCCodePCM16)
sl@0: 		{
sl@0: 		User::Leave(KErrNotSupported);
sl@0: 		}
sl@0: 	}	
sl@0: 
sl@0: 
sl@0: /**
sl@0: @deprecated
sl@0: 
sl@0: This method should not be used - it is provided to maintain SC with v7.0s.
sl@0: 
sl@0: @return The 4CC of the data supplied by this source.
sl@0: */
sl@0: TFourCC CMMFAudioInput::DataType() const
sl@0: 	{
sl@0: 	return KMMFFourCCCodePCM16;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /**
sl@0: Loads audio device drivers and initialise this device.
sl@0: */
sl@0: void CMMFAudioInput::LoadL()
sl@0: 	{
sl@0: 	//[ do all the work that can fail first
sl@0: 	// before we modify the internal state ]
sl@0: 
sl@0: 	iMMFDevSound = CMMFDevSound::NewL();
sl@0: 	iFirstBufferRequested = EFalse;
sl@0: 	iFirstBufferRead = EFalse;
sl@0: 	if (iState != EDevSoundReady) 
sl@0: 		{
sl@0: 		iState = EIdle;
sl@0: 		}
sl@0: 
sl@0: 	iDevSoundLoaded = ETrue;
sl@0: 
sl@0: 	//[ assert dev sound has been constructed]
sl@0: 	ASSERT( iMMFDevSound );
sl@0: 	ASSERT( iDevSoundLoaded );
sl@0:     ASSERT( !iFirstBufferRead );
sl@0: 	}
sl@0: 
sl@0: void CMMFAudioInput::DeviceMessage(TUid /*aMessageType*/, const TDesC8& /* aMsg */)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: void CMMFAudioInput::InitializeComplete(TInt aError)
sl@0: 	{
sl@0: 	if (aError == KErrNone)
sl@0: 		{
sl@0: 		iState = EDevSoundReady;
sl@0: 		}
sl@0: 
sl@0: 	if(iInitializeState == KRequestPending)
sl@0: 		{
sl@0: 		iInitializeState = aError;
sl@0: 		iActiveSchedulerWait->AsyncStop();
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: 	
sl@0: /**
sl@0: ToneFinished MMFDevSoundObserver - should never get called.
sl@0: */
sl@0: void CMMFAudioInput::ToneFinished(TInt /*aError*/)
sl@0: 	{
sl@0: 	//we should never get here during a record session!
sl@0: 	__ASSERT_DEBUG(EFalse,Panic(EMMFAudioInputPanicToneFinishedNotSupported));
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /**
sl@0: BuffferToBeEmptied MMFDevSoundObserver
sl@0: Called when stopped due to error.
sl@0: */
sl@0: void CMMFAudioInput::BufferToBeEmptied(CMMFBuffer* aBuffer)
sl@0: 	{
sl@0: 	iDevSoundBuf = aBuffer;
sl@0: 
sl@0: 	if (iFirstBufferRequested)
sl@0: 		{
sl@0: 		if (iPausePending)
sl@0: 			{
sl@0: 			aBuffer->SetLastBuffer(ETrue);
sl@0: 			iPausePending = EFalse;
sl@0: 			}
sl@0: 
sl@0: #ifdef _DEBUG
sl@0: 		TRAPD(err, iConsumer->BufferFilledL(aBuffer));
sl@0: 		__ASSERT_DEBUG(!err, Panic(err));
sl@0: #else
sl@0: 		TRAP_IGNORE(iConsumer->BufferFilledL(aBuffer));
sl@0: #endif
sl@0: 
sl@0: 		iFirstBufferRead = ETrue;
sl@0: 		}
sl@0: 	}	
sl@0: 
sl@0: 
sl@0: /**
sl@0: RecordError MMFDevSoundObserver
sl@0: Called when stopped due to error.
sl@0: */
sl@0: void CMMFAudioInput::RecordError(TInt aError)
sl@0: 	{
sl@0: 	//[  two event categories will be used
sl@0: 	// which mirrors the datapath response ]
sl@0: 
sl@0: 	//[ record the error ]
sl@0: 	iMMFDevsoundError = aError;
sl@0: 	TMMFEvent event( KMMFEventCategoryPlaybackComplete, aError);
sl@0: 	
sl@0: 	//[ send the event to the client.
sl@0: 	SendEventToClient(event);    
sl@0: 	
sl@0: 	// clear flags if there is an error.
sl@0: 	iPausePending = EFalse;
sl@0: 
sl@0: 	//[ we are not going to stop devsound ]
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /**
sl@0: BufferToBeFilled MMFDevSoundObserver - should never get called.
sl@0: */
sl@0: void CMMFAudioInput::BufferToBeFilled(CMMFBuffer* /*aBuffer*/)
sl@0: 	{
sl@0: 	//we should never get here during a play session!
sl@0: 	__ASSERT_DEBUG(EFalse, Panic(EMMFAudioInputPanicPlayerDataUsedNotSupported));
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /**
sl@0: PlayError MMFDevSoundObserver - should never get called.
sl@0: */
sl@0: void CMMFAudioInput::PlayError(TInt /*aError*/)
sl@0: 	{
sl@0: 	//we should never get here during a record session!
sl@0: 	__ASSERT_DEBUG(EFalse, Panic(EMMFAudioInputPanicPlayErrorNotSupported));
sl@0: 	}
sl@0: 
sl@0: 
sl@0: /**
sl@0: ConvertError MMFDevSoundObserver - should never get called.
sl@0: */
sl@0: void CMMFAudioInput::ConvertError(TInt /*aError*/)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: 
sl@0: void CMMFAudioInput::SendEventToClient(const TMMFEvent& aEvent)
sl@0: 	{
sl@0: 	iEventHandler->SendEventToClient(aEvent);
sl@0: 	}
sl@0: 
sl@0: // _________________________________________________________________________
sl@0: // Exported proxy for instantiation method resolution
sl@0: // Define the interface UIDs
sl@0: 
sl@0: const TImplementationProxy ImplementationTable[] = 
sl@0: 	{
sl@0: 		IMPLEMENTATION_PROXY_ENTRY(KMmfUidAudioInputInterface,	CMMFAudioInput::NewSourceL)
sl@0: 	};
sl@0: 
sl@0: EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
sl@0: 	{
sl@0: 	aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);
sl@0: 
sl@0: 	return ImplementationTable;
sl@0: 	}
sl@0: