--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmfenh/advancedaudiocontroller/audiocontrollerpluginsvariant/AdvancedAudioController/Src/AdvancedAudioEncoder.cpp	Tue Feb 02 01:08:46 2010 +0200
@@ -0,0 +1,229 @@
+/*
+* Copyright (c) 2004 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:  The functions in this module implements the common behavior
+*                for the audio encoder base class.
+*
+*/
+
+
+
+// INCLUDE FILES
+#include	"AdvancedAudioEncoder.h"
+#include 	<mmfdatabuffer.h>
+#include    "DebugMacros.h"
+
+// CONSTANTS
+const TInt KEmptyBuffer        = 1;
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CAdvancedAudioEncoder::CAdvancedAudioEncoder(TInt aPriority)
+    :   CActive(aPriority),
+    	iState(EIdle),
+        iSharedBuffers(NULL),
+        iMMFDevSound(NULL),
+        iObserver(NULL)
+    {
+#ifdef _DEBUG
+    RDebug::Print(_L("CAdvancedAudioEncoder::CAdvancedAudioEncoder()"));
+#endif
+    }
+
+// Destructor
+EXPORT_C CAdvancedAudioEncoder::~CAdvancedAudioEncoder()
+	{
+#ifdef _DEBUG
+    RDebug::Print(_L("CAdvancedAudioEncoder::~CAdvancedAudioEncoder()"));
+#endif
+	}
+
+// -----------------------------------------------------------------------------
+// CAdvancedAudioEncoder::SetDevSound
+// Sets the DevSound instance.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CAdvancedAudioEncoder::SetDevSound(
+	CMMFDevSound& aDevSound )
+	{
+	iMMFDevSound = &aDevSound;
+	}
+
+// -----------------------------------------------------------------------------
+// CAdvancedAudioEncoder::SetObserver
+// Sets the observer instance.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CAdvancedAudioEncoder::SetObserver(
+	MAdvancedAudioEncoderObserver& aObserver )
+	{
+	iObserver = &aObserver;
+	}
+
+// -----------------------------------------------------------------------------
+// CAdvancedAudioEncoder::SetSinkBuffers
+// Sets the sink buffer for encoding operations.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CAdvancedAudioEncoder::SetSinkBuffers(
+	RPointerArray<CMMFDataBuffer>* aBuffers )
+	{
+	iSharedBuffers = aBuffers;
+	}
+
+// -----------------------------------------------------------------------------
+// CAdvancedAudioEncoder::EmptyBuffer
+// Request to fill the specified buffer with converted data.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CAdvancedAudioEncoder::EmptyBuffer(
+	CMMFBuffer* aBuffer)
+	{
+#ifdef _DEBUG
+//    RDebug::Print(_L("CAdvancedAudioEncoder::EmptyBuffer"));
+#endif
+	iBufferToEmpty = aBuffer; // store away the buffer
+	iState = EEncoding;
+
+	iRequest = KEmptyBuffer;
+	Ready(KErrNone);
+    SetActive();
+	}
+
+// -----------------------------------------------------------------------------
+// CAdvancedAudioEncoder::Stop
+// Stops encoding process.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CAdvancedAudioEncoder::Stop()
+	{
+	DP1(_L("CAdvancedAudioEncoder::Stop start iNextBuffer[%d]"), iNextBuffer);
+
+    // There are 2 situations in which this function is called.
+    // First when Devsound has already given a buffer to Encoder to be handled.
+    // In which case, one needs to finish handling it by calling HandleEmptyBufferL().
+    // Secondly, in a situation where the current shared buffer is being filled (partially full)
+    // in which case, the buffer needs to be flushed
+	if (iBufferToEmpty && (iState == EEncoding))
+		{
+	    DP1(_L("CAdvancedAudioEncoder::Stop setting last buffer[%d]"), iBufferToEmpty);
+		iBufferToEmpty->SetLastBuffer(ETrue);
+		TRAPD(err, HandleEmptyBufferL());
+		if ( err )
+			{
+			DP1(_L("CAdvancedAudioEncoder::Stop err[%d]"), err);
+			iState = EIdle;
+			iObserver->SendEvent(TMMFEvent(KMMFEventCategoryPlaybackComplete, err));
+			}		
+        }
+	else if (iNextBuffer)
+	    { // a record controller may call stop before buffers are initialized
+        if (iNextBuffer->Status() == EBeingFilled)
+            {
+            DP1(_L("CAdvancedAudioEncoder::Stop setting buffer[%d] to EFull"), iNextBuffer);
+            iNextBuffer->SetStatus(EFull);
+            DP1(_L("CAdvancedAudioEncoder::Stop emptying buffer[%d]"), iNextBuffer);
+            iObserver->EmptyBuffer(iNextBuffer);
+            }
+	    }
+		
+	iState = EIdle;
+    DP0(_L("CAdvancedAudioEncoder::Stop end"));
+	}
+
+// -----------------------------------------------------------------------------
+// CAdvancedAudioEncoder::Ready
+// Utility function to post a request complete
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CAdvancedAudioEncoder::Ready(
+    const TInt aStatus)
+    {
+    TRequestStatus* stat = &iStatus;
+    User::RequestComplete(stat, aStatus);
+    }
+
+// -----------------------------------------------------------------------------
+// CDevSoundAudioInput::NextSharedBufferL
+// Determine the next available shared buffer from the pool of shared buffers
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CAdvancedAudioEncoder::NextSharedBufferL()
+	{
+	if ( (*iSharedBuffers)[iSharedBufferIndex]->Status() == EAvailable )
+		{
+		iNextBuffer = (*iSharedBuffers)[iSharedBufferIndex];
+		iSharedBufferIndex++;
+		if ( iSharedBufferIndex == iSharedBuffers->Count() )
+			{
+			iSharedBufferIndex = 0;
+			}
+		}
+	else
+		{
+#ifdef _DEBUG
+	    RDebug::Print(_L("CAdvancedAudioEncoder::NextSharedBufferL - KErrOverflow"));
+#endif
+		User::Leave(KErrOverflow);
+		}
+	}
+
+// -----------------------------------------------------------------------------
+// CAdvancedAudioEncoder::RunL
+// Invoke by the active scheduler when a request completes
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CAdvancedAudioEncoder::RunL()
+	{
+#ifdef _DEBUG
+//    RDebug::Print(_L("CAdvancedAudioEncoder::RunL"));
+#endif
+    switch(iRequest)
+		{
+		case KEmptyBuffer:
+			if ( iState == EEncoding )
+				{
+				TRAPD(err, HandleEmptyBufferL());
+				if ( err )
+					{
+#ifdef _DEBUG
+					RDebug::Print(_L("CAdvancedAudioEncoder::RunL err[%d]"), err);
+#endif
+					// if error is encountered, the state is reset and event is generated and the recording is stopped.
+					//err = KErrDied;
+					iState = EIdle;
+					iObserver->SendEvent(TMMFEvent(KMMFEventCategoryPlaybackComplete, err));
+					}
+				}
+			break;
+
+		default:
+			break;
+		};
+	}
+
+// -----------------------------------------------------------------------------
+// CAdvancedAudioEncoder::DoCancel
+// Cancels the current and any on going requests/tasks.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CAdvancedAudioEncoder::DoCancel()
+    {
+    }
+
+// End of file