--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmdevicefw/mdf/src/video/decoderadapter/mdfvideodecodehwdeviceadapter.cpp	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,1402 @@
+// Copyright (c) 2006-2009 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:
+//
+
+#include <mmf/devvideo/devvideopuconfig.h>
+#include "mdfvideodecodehwdeviceadapter.h"
+#include "displaymodeutils.h"
+
+#if defined (SYMBIAN_MDFVIDEODECODERHWDEVICE_DEBUG)
+#define DEBUG_PRINT RDebug::Print
+#else
+#define DEBUG_PRINT
+#endif // defined (SYMBIAN_MDFVIDEODECODERHWDEVICE_DEBUG)
+
+const TInt KOutputFormatsArraySize = 3;
+const TInt KTenFPS = 10;
+const TInt KOneSecond = 1000000;
+const TInt KInputBufferSize = 8192;
+
+_LIT(KDevVideoHwDeviceDecoderPanicCategory, "DevVideoHwDeviceDecoder");
+void DevVideoHwDeviceDecoderPanic(TInt aReason)
+	{
+	User::Panic(KDevVideoHwDeviceDecoderPanicCategory, aReason);
+	}
+	
+/* 
+ Constructs a new instance of CMdfVideoDecodeHwDeviceAdapter.
+ @return    "CMdfVideoDecodeHwDeviceAdapter*"
+            A pointer to the newly constructed HwDevice
+ */
+CMdfVideoDecodeHwDeviceAdapter* CMdfVideoDecodeHwDeviceAdapter::NewL()
+	{
+	CMdfVideoDecodeHwDeviceAdapter* self = new (ELeave) CMdfVideoDecodeHwDeviceAdapter;
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	CleanupStack::Pop(self);
+	return self;	
+	}
+
+/*
+ Default constructor
+*/
+CMdfVideoDecodeHwDeviceAdapter::CMdfVideoDecodeHwDeviceAdapter()
+	{
+	}
+	
+void CMdfVideoDecodeHwDeviceAdapter::ConstructL()
+	{
+	// system clock without HAL
+	TInt64 tt64;
+	TTime ttime;
+	ttime.HomeTime();
+	tt64 = ttime.Int64();
+	iSystemClock = tt64;
+
+	// reset picture format
+	iFormat.iDataFormat = (TImageDataFormat)0;
+	
+	// Load the PU Loader plugin
+	iPuLoader = static_cast<CMdfPuLoader*>
+		(REComSession::CreateImplementationL(TUid::Uid(KUidPuLoaderImplementation), iPuLoaderDtorKey));	
+	iState = EProcessingUnitLoaderLoaded;
+	}
+
+/*
+ Default destructor
+*/
+CMdfVideoDecodeHwDeviceAdapter::~CMdfVideoDecodeHwDeviceAdapter()
+	{
+	DEBUG_PRINT(_L("HwDevice: Destroying"));
+	// stop playing if necessary
+	Stop();
+	
+	delete iPlayerEngine;
+	delete iScreenDeviceGc;
+
+	// destroy the buffer manager
+	delete iBufferManager;
+	// destroy the picture header
+	delete iPictureHeader;	
+	
+		// Unload the DecoderPU
+	if (iDecoderPU)
+		{
+		iPuLoader->UnloadProcessingUnit(iDecoderPU);
+		}
+		
+	delete iPuLoader;	
+	delete iPuData;
+	delete iManufacturer;
+	REComSession::DestroyedImplementation(iPuLoaderDtorKey);			
+
+	iInputVidFormats.ResetAndDestroy(); // will destroy contents as well
+	iOutputVidFormats.Close();
+	iPictureRates.Close();
+
+	DEBUG_PRINT(_L("HwDevice: Destroyed"));
+	}
+
+/*
+ @see CMMFVideoHwDevice::CustomInterface()
+ */
+TAny* CMdfVideoDecodeHwDeviceAdapter::CustomInterface(TUid aInterface)
+	{
+	if (aInterface.iUid == KUidDevVideoHwDeviceAdapterSetup)
+		{
+		return static_cast<MDevVideoHwDeviceAdapterSetup*>(this);
+		}
+	return NULL;
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::PostProcessorInfoLC()
+ */
+CPostProcessorInfo* CMdfVideoDecodeHwDeviceAdapter::PostProcessorInfoLC()
+	{
+	// post processor info will be obtained from the post processor plugin, if any
+	return NULL;
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::GetOutputFormatListL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::GetOutputFormatListL(RArray<TUncompressedVideoFormat>& aFormats)
+	{
+	// TUncompressedVideoFormats is a union - therefore using hard initialisation
+	iOutputVidFormats.Reset();
+	TUncompressedVideoFormat outputFormats[KOutputFormatsArraySize];
+	
+	outputFormats[0].iDataFormat = ERgbRawData;
+	outputFormats[0].iRgbFormat = ERgb16bit565;
+	iOutputVidFormats.AppendL(outputFormats[0]);
+	aFormats.AppendL(outputFormats[0]);
+	
+	outputFormats[1].iDataFormat = ERgbFbsBitmap;
+	outputFormats[1].iRgbFormat = EFbsBitmapColor16M;
+	iOutputVidFormats.AppendL(outputFormats[1]);
+	aFormats.AppendL(outputFormats[1]);
+	
+	outputFormats[2].iDataFormat = EYuvRawData;
+	iOutputVidFormats.AppendL(outputFormats[2]);
+	aFormats.AppendL(outputFormats[2]);
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::SetOutputFormatL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetOutputFormatL(const TUncompressedVideoFormat& aFormat)
+	{
+	// check size and format are supported
+	if(iOutputVidFormats.Count() == 0) 
+		{
+		User::Leave(KErrNotReady);
+		}
+	if(!iOutputVidFormats.Find(aFormat)) 
+		{
+		User::Leave(KErrNotSupported);
+		}
+	
+	iFormat = aFormat;
+	TDevVideoPlayPuConfig decodeConfig;
+	decodeConfig.iImageFormat = iFormat;		
+	decodeConfig.iInputBufferSize = KInputBufferSize;	
+	TPuConfigVideoPlayback puConfig(decodeConfig);
+
+	User::LeaveIfError(iDecoderPU->Configure(puConfig));
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::SetClockSource()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetClockSource(MMMFClockSource* aClock)
+	{
+	iClockSource = aClock;
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::SetVideoDestScreenL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetVideoDestScreenL(TBool aScreen)
+	{
+	if(aScreen) 
+		{
+		// NB we expect the output format to have been set before this is called
+		if(!iFormat.iDataFormat) 
+			{
+			User::Leave(KErrNotReady);
+			}
+	
+		// we support only bitmaps for DSA, not raw data
+		if(iFormat.iDataFormat != ERgbFbsBitmap) 
+			{
+			User::Leave(KErrNotSupported);
+			}
+		}
+	
+	// ETrue = use DSA
+	iDSAEnabled = aScreen;
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::SetPostProcessTypesL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetPostProcessTypesL(TUint32 /* aPostProcCombination */)
+	{
+	// the decoder is not configurable
+	User::Leave(KErrNotSupported);
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::SetInputCropOptionsL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetInputCropOptionsL(const TRect& /* aRect */)
+	{
+	// the decoder is not configurable
+	User::Leave(KErrNotSupported);
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::SetYuvToRgbOptionsL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetYuvToRgbOptionsL(const TYuvToRgbOptions& /* aOptions */, const TYuvFormat& /* aYuvFormat */, TRgbFormat /* aRgbFormat */)
+	{
+	// the decoder is not configurable
+	User::Leave(KErrNotSupported);
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::SetYuvToRgbOptionsL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetYuvToRgbOptionsL(const TYuvToRgbOptions& /* aOptions */)
+	{
+	// the decoder is not configurable
+	User::Leave(KErrNotSupported);
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::SetRotateOptionsL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetRotateOptionsL(TRotationType /* aRotationType */)
+	{
+	// the decoder is not configurable
+	User::Leave(KErrNotSupported);
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::SetScaleOptionsL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetScaleOptionsL(const TSize& /* aTargetSize */, TBool /* aAntiAliasFiltering */)
+	{
+	// the decoder is not configurable
+	User::Leave(KErrNotSupported);
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::SetOutputCropOptionsL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetOutputCropOptionsL(const TRect& /* aRect */)
+	{
+	// the decoder is not configurable
+	User::Leave(KErrNotSupported);
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::SetPostProcSpecificOptionsL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetPostProcSpecificOptionsL(const TDesC8& /* aOptions */)
+	{
+	// the decoder is not configurable
+	User::Leave(KErrNotSupported);
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::Initialize()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::Initialize()
+	{
+	__ASSERT_ALWAYS(iProxy, DevVideoHwDeviceDecoderPanic(0));
+
+	TRAPD(err, InitializeL());
+	if(err == KErrNone && !iPUInitialized)
+		{
+		err = KErrNotSupported;		
+		}	
+	iProxy->MdvppInitializeComplete(this, err);
+	}
+
+// private method : body of Initialize()
+void CMdfVideoDecodeHwDeviceAdapter::InitializeL()
+	{
+	// pre-check format
+	switch(iFormat.iDataFormat) 
+		{
+		case 0:
+			User::Leave(KErrNotReady);
+			break;
+		case ERgbRawData:
+		case ERgbFbsBitmap:
+		case EYuvRawData:
+			break;
+		default:
+			User::Leave(KErrNotSupported);
+			break;
+		}
+		
+	// create and initialise the buffer manager
+	iBufferManager = CMdfVideoDecoderBufferManager::NewL();
+
+	iBufferManager->Init(iFormat);
+	iBufferManager->SetFrameSize(iFrameSize);
+	
+	DEBUG_PRINT(_L("HwDevice: Buffer Manager initialized"));
+
+	// The actual frame rate will come from the VOL headers.
+	iFrameRate = KTenFPS;
+	
+	// reset the player flags
+	iPrimed = EFalse;
+	iInputBufferWaiting = EFalse;	
+	iInputEnd = EFalse;
+	
+	// create the player engine
+	iPlayerEngine = CMdfVideoPlayerEngine::NewL(*this);
+
+	RPointerArray<MMdfInputPort> inputPorts;
+	// Get ports and set observers
+	User::LeaveIfError(iDecoderPU->GetInputPorts(inputPorts));
+	if (inputPorts.Count()==0)
+		{
+		inputPorts.Close();
+		User::Leave(KErrNotFound);
+		}
+	iDecoderPUInputPort = inputPorts[0];
+	iDecoderPUInputPort->MipSetObserver(*this);
+	inputPorts.Close();
+
+	RPointerArray<MMdfOutputPort> outputPorts;
+	User::LeaveIfError(iDecoderPU->GetOutputPorts(outputPorts));
+	if (outputPorts.Count()==0)
+		{
+		outputPorts.Close();
+		User::Leave(KErrNotFound);
+		}
+	iDecoderPUOutputPort = outputPorts[0];
+	iDecoderPUOutputPort->MopSetObserver(*this);
+	outputPorts.Close();
+		
+	iState = EProcessingUnitLoaded;
+
+	DEBUG_PRINT(_L("HwDevice: Decoder Processing Unit Loaded"));
+	
+	// Create the buffers that are associated with the input and output ports
+	iInputBuffer = &iBufferManager->CreateDataBufferL(iDecoderPUInputPort->MipBufferSize());
+	iPUInputBuffer = *iInputBuffer;
+	User::LeaveIfError(iDecoderPUInputPort->MipUseBuffer(*iPUInputBuffer));		
+	
+	CVideoFrameBuffer& frameBuffer = iBufferManager->CreateFrameBufferL(TMMFDisplayModeUtils::DisplayMode(iFormat.iRgbFormat));
+	User::LeaveIfError(iDecoderPUOutputPort->MopUseBuffer(frameBuffer));
+	
+	// VD: should not move the set up of the state after sending the Initialize() calls???
+	iState = EProcessingUnitInitializing;
+
+	// async call, that calls back to InitializeComplete()
+	iDecoderPU->Initialize();	
+		
+	DEBUG_PRINT(_L("HwDevice: Initialized OK"));
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::StartDirectScreenAccessL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::StartDirectScreenAccessL(const TRect& aVideoRect, CFbsScreenDevice& aScreenDevice, const TRegion& aClipRegion)
+	{
+	// ensure SetVideoDestScreenL() has been called
+	if(!iDSAEnabled)
+		{
+		User::Leave(KErrNotReady);
+		}
+	
+	DEBUG_PRINT(_L("HwDevice: Starting DSA"));
+
+	iDSAStarted = ETrue;
+
+	// the CDirectScreenAccess must be created by the client app.
+	// the CFbsScreenDevice (only) is passed across...
+	// we need to blit the bitmap into it, i.e. we need to create our own GC
+	if(!iScreenDevice) 
+		{		
+		User::LeaveIfError(aScreenDevice.CreateContext(iScreenDeviceGc));
+		iScreenDevice = &aScreenDevice;
+		iScreenDeviceRect = aVideoRect;
+		iScreenDeviceGc->SetClippingRegion(aClipRegion);
+		}
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::SetScreenClipRegion()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetScreenClipRegion(const TRegion& aRegion)
+	{
+	__ASSERT_ALWAYS(iScreenDeviceGc, DevVideoHwDeviceDecoderPanic(0));
+
+	iScreenDeviceGc->SetClippingRegion(aRegion);
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::SetPauseOnClipFail()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetPauseOnClipFail(TBool /* aPause */)
+	{
+	// not implemented - will pause by default
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::AbortDirectScreenAccess()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::AbortDirectScreenAccess()
+	{
+	DEBUG_PRINT(_L("HwDevice: Stopping DSA"));
+	iDSAStarted = EFalse;
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::IsPlaying()
+ */
+TBool CMdfVideoDecodeHwDeviceAdapter::IsPlaying()
+	{
+	return (iState == EProcessingUnitExecuting ? ETrue : EFalse);
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::Redraw()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::Redraw()
+	{
+	if(iDSAStarted) 
+		{
+		DisplayLastFrameDirect(); 
+		}
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::Start()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::Start()
+	{
+	__ASSERT_ALWAYS(iPlayerEngine, DevVideoHwDeviceDecoderPanic(0));
+	__ASSERT_ALWAYS(iDecoderPU, DevVideoHwDeviceDecoderPanic(0));
+	
+	if(iState != EProcessingUnitExecuting)
+		{		
+		CVideoFrameBuffer* frameBuffer = NULL;
+		TRAPD(err, frameBuffer = &iBufferManager->GetEmptyFrameBufferL(ETrue));
+		if (err != KErrNone)
+			{
+			iProxy->MdvppFatalError(this, err);
+			return;
+			}
+		
+		iDecoderPUOutputPort->MopReadData(*frameBuffer);
+		
+		iDecoderPU->Execute();
+		TProcessingUnitState puState = iDecoderPU->State();
+		if(puState == EProcessingUnitInvalid) 
+			{
+			return;	
+			}
+		iState = EProcessingUnitExecuting;
+
+		// if we are using raw decoding, then play as fast as we can,
+		// otherwise use the actual frame rate
+		TInt playerFrameRate;
+		if(iSynchronize) 
+			{
+			playerFrameRate = TInt(iFrameRate);
+			}
+		else 
+			{
+			playerFrameRate = CMdfVideoPlayerEngine::KUnsynchronized;
+			}
+		TRAP(err, iPlayerEngine->StartL(playerFrameRate));			
+		if(err != KErrNone) 
+			{
+			// the player failed to start. this is a fatal error
+			iProxy->MdvppFatalError(this, err);
+			}
+		else 
+			{			
+			iProxy->MdvppNewBuffers();
+			}
+		}
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::Stop()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::Stop()
+	{
+	if(iState == EProcessingUnitExecuting)
+		{
+		iPlayerEngine->Stop();
+		iDecoderPU->Stop();		
+		iState = EProcessingUnitIdle;
+		}
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::Pause()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::Pause()
+	{
+	Stop();
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::Resume()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::Resume()
+	{
+	Start();
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::SetPosition()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetPosition(const TTimeIntervalMicroSeconds& aPlaybackPosition)
+	{
+	TPuConfigTimestamp timeStamp(aPlaybackPosition);
+	// we have no way report a failure here, and it is not a fatal error so any error is ignored
+	iDecoderPU->Configure(timeStamp);
+	}
+/*
+ @see CMMFVideoPlayHwDevice::FreezePicture()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::FreezePicture(const TTimeIntervalMicroSeconds& /* aTimestamp */)
+	{
+	// not supported; we have no presentation timestamps
+	// however should not cause a fatal error
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::ReleaseFreeze()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::ReleaseFreeze(const TTimeIntervalMicroSeconds& /* aTimestamp */)
+	{
+	// not supported; we have no presentation timestamps
+	// however should not cause a fatal error
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::PlaybackPosition()
+ */
+TTimeIntervalMicroSeconds CMdfVideoDecodeHwDeviceAdapter::PlaybackPosition()
+	{
+	if(iFrameRate == 0.0) 
+		{
+		return 0;
+		}
+	// this is the total number of pictures displayed or discarded
+	// NB it is NOT equivalent to the number of pictures decoded, as the
+	// player may be running a few frames behind the decoder	
+	return ((iPictureCounters.iPicturesDisplayed + iPictureCounters.iPicturesSkipped) * (KOneSecond / (TInt)iFrameRate));
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::PictureBufferBytes()
+ */
+TUint CMdfVideoDecodeHwDeviceAdapter::PictureBufferBytes()
+	{
+	__ASSERT_ALWAYS(iBufferManager, DevVideoHwDeviceDecoderPanic(0));
+	
+	return (iBufferManager->FrameBufferSize() * iBufferManager->MaxFrameBuffers());
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::GetPictureCounters()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::GetPictureCounters(CMMFDevVideoPlay::TPictureCounters& aCounters)
+	{
+	aCounters = iPictureCounters;
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::SetComplexityLevel()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetComplexityLevel(TUint /* aLevel */)
+	{
+	// separate complexity levels are not available; ignored
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::NumComplexityLevels()
+ */
+TUint CMdfVideoDecodeHwDeviceAdapter::NumComplexityLevels()
+	{
+	// separate complexity levels are not available; return 1
+	return 1;
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::GetComplexityLevelInfo()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::GetComplexityLevelInfo(TUint aLevel, CMMFDevVideoPlay::TComplexityLevelInfo& aInfo)
+	{
+	// ignore call if aLevel is not 0
+	if(aLevel == 0) 
+		{
+		aInfo = iComplexityLevelInfo;
+		}
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::ReturnPicture()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::ReturnPicture(TVideoPicture* aPicture)
+	{
+	__ASSERT_ALWAYS(iBufferManager, DevVideoHwDeviceDecoderPanic(0));
+
+	// return the frame buffer that has been emptied
+	TRAPD(err, iBufferManager->ReturnFrameBufferL(*aPicture, CVideoFrameBuffer::EEmptied));
+	if (err == KErrNone)
+		{
+		if (!iLastFrameBufferReceived)
+			{
+			
+			// request the next empty frame buffer
+			CVideoFrameBuffer* frameBuffer = NULL;
+			TRAP(err, frameBuffer = &iBufferManager->GetEmptyFrameBufferL(ETrue));
+			if (err == KErrNone)
+				{
+				CMMFBuffer* buffer = *frameBuffer;
+				iDecoderPUOutputPort->MopReadData(*buffer);
+				}
+			}
+		// DoPostPictureNotify() will handle MdvppStreamEnd()	
+		}
+	else
+		{
+		iProxy->MdvppFatalError(this, err);
+		}
+	ASSERT(err == KErrNone);
+	DoPostPictureNotify();
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::GetSnapshotL()
+ */
+TBool CMdfVideoDecodeHwDeviceAdapter::GetSnapshotL(TPictureData& /*aPictureData*/, const TUncompressedVideoFormat& /*aFormat*/)
+	{
+	// not supported - no presentation timestamps
+	User::Leave(KErrNotSupported);
+	return EFalse;
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::GetTimedSnapshotL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::GetTimedSnapshotL(TPictureData* /*aPictureData*/, const TUncompressedVideoFormat& /*aFormat*/, const TTimeIntervalMicroSeconds& /*aPresentationTimestamp*/)
+	{
+	// this method should be called on the post processor not on the decoder
+	// ending up here is a programming error and hence a PANIC condition
+	DevVideoHwDeviceDecoderPanic(0);
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::GetTimedSnapshotL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::GetTimedSnapshotL(TPictureData* /*aPictureData*/, const TUncompressedVideoFormat& /*aFormat*/, const TPictureId& /*aPictureId*/)
+	{
+	// this method should be called on the post processor not on the decoder
+	// ending up here is a programming error and hence a PANIC condition
+	DevVideoHwDeviceDecoderPanic(0);
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::CancelTimedSnapshot()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::CancelTimedSnapshot()
+	{
+	// this method should be called on the post processor not on the decoder
+	// ending up here is a programming error and hence a PANIC condition
+	DevVideoHwDeviceDecoderPanic(0);
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::GetSupportedSnapshotFormatsL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::GetSupportedSnapshotFormatsL(RArray<TUncompressedVideoFormat>& /*aFormats*/)
+	{
+	// this method should be called on the post processor not on the decoder
+	// ending up here is a programming error and hence a PANIC condition
+	DevVideoHwDeviceDecoderPanic(0);
+	}
+
+/*
+ @see CMMFVideoPlayHwDevice::InputEnd()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::InputEnd()
+	{
+	__ASSERT_ALWAYS(iBufferManager, DevVideoHwDeviceDecoderPanic(0));
+
+	DEBUG_PRINT(_L("HwDevice: Input end"));
+	
+	iInputEnd = ETrue;
+
+	// if there isn't an outstanding write to the PU, write
+	// an empty buffer	
+	if(!iWriteRequestOutstanding) 
+		{
+		SendLastBuffer();
+		}
+	}
+
+/*
+ @see CMMFVideoDecodeHwDevice::VideoDecoderInfoLC()
+ */
+CVideoDecoderInfo* CMdfVideoDecodeHwDeviceAdapter::VideoDecoderInfoLC()
+	{
+	// this is a complicated structure, ensure all fields are
+	// filled with some valid value
+	
+	//if PU is not loaded panic
+	if(iPuData == NULL)	
+		{
+		DevVideoHwDeviceDecoderPanic(KErrNotReady);	
+		}
+	// supported formats array
+	iInputVidFormats.Reset();
+	CCompressedVideoFormat* vidCV = NULL;
+	vidCV = CCompressedVideoFormat::NewL(iPuData->InputDataType() , KNullDesC8);
+	CleanupStack::PushL(vidCV);
+	iInputVidFormats.AppendL(vidCV);
+	CleanupStack::Pop(vidCV);	// CCompressedVideo object is destroyed in destructor
+	
+
+	// construct the video decoder info object
+	CVideoDecoderInfo* vInfo = CVideoDecoderInfo::NewL(
+		iPuUid, 
+		*iManufacturer,
+		KNullDesC,
+		TVersion(KVideoDecoderInfoVersionMaj, KVideoDecoderInfoVersionMin, KVideoDecoderInfoVersionBuild),
+		iInputVidFormats.Array(),
+		EFalse, // not accelerated
+		ETrue, // supports direct screen access
+		iMaxPictureSize, 
+		KMaxTUint32, // max bitrate supported
+		iPuData->MaxPictureRates().Array(),
+		EFalse, // picture loss not supported,
+		EFalse, // slice loss not supported,
+		KVideoDecoderInfoCSInfo,
+		KVideoDecoderInfoISInfo );
+
+	CleanupStack::PushL(vInfo);
+	return vInfo;
+	}
+
+
+/*
+ @see CMMFVideoDecodeHwDevice::GetHeaderInformationL()
+ */
+ 
+TVideoPictureHeader* CMdfVideoDecodeHwDeviceAdapter::GetHeaderInformationL(TVideoDataUnitType aDataUnitType, TVideoDataUnitEncapsulation aEncapsulation, TVideoInputBuffer* aDataUnit)
+	{
+	// NB this may be called EITHER before OR after the decoder is initialized.
+	// ensure at least that SetOutputFormatL() has been called before this, 
+	// as the decoder requires it to be able to initialize.
+	
+	__ASSERT_ALWAYS(iFormat.iDataFormat, DevVideoHwDeviceDecoderPanic(0));
+	
+	TDevVideoHeaderPuConfig header;
+	header.iDataUnitType = aDataUnitType;
+	header.iDataUnitEncapsulation = aEncapsulation;
+	header.iHeaderData.Set(aDataUnit->iData.Ptr(),aDataUnit->iData.Size());
+	
+	TPuConfigVideoHeader headerConfig(header);
+	
+	// Configure the decoder with the Header Information
+	User::LeaveIfError(iDecoderPU->Configure(headerConfig));
+	
+	// retrieve the picture information from the config structure
+	
+	TPuConfigVideoPictureHeader pict; 
+	User::LeaveIfError(iDecoderPU->GetConfig(pict));
+	
+	delete iPictureHeader;
+	iPictureHeader = NULL;
+	// Create a new header from the returned data
+	iPictureHeader = new (ELeave)TVideoPictureHeader(
+							*TPuConfigVideoPictureHeader::GetStructure(pict));
+	iFrameSize = iPictureHeader->iSizeInMemory;
+	return iPictureHeader;
+	
+	}
+
+/*
+ @see CMMFVideoDecodeHwDevice::ConfigureDecoderL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::ConfigureDecoderL(const TVideoPictureHeader& /* aVideoPictureHeader */)
+	{
+	// there is nothing configurable
+	User::Leave(KErrNotSupported);
+	}
+
+/*
+ @see CMMFVideoDecodeHwDevice::ReturnHeader()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::ReturnHeader(TVideoPictureHeader* aHeader)
+	{
+	if(aHeader == iPictureHeader) // only free our created header
+		{
+		delete iPictureHeader;
+		iPictureHeader = NULL;	
+		}
+	}
+
+/*
+ @see CMMFVideoDecodeHwDevice::SetInputFormatL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetInputFormatL(const CCompressedVideoFormat& aFormat, TVideoDataUnitType aDataUnitType, TVideoDataUnitEncapsulation aEncapsulation, TBool aDataInOrder)
+	{
+	// EDuCodedPicture, EDuElementaryStream, aDataInOrder == ETrue
+	if(aFormat.MimeType() != iPuData->InputDataType()) 
+		{
+		User::Leave(KErrNotSupported);	
+		}
+	if(aDataUnitType != EDuCodedPicture) 
+		{
+		User::Leave(KErrNotSupported);	
+		}
+	if(aEncapsulation != EDuElementaryStream) 
+		{
+		User::Leave(KErrNotSupported);	
+		}
+	if(!aDataInOrder) 
+		{
+		User::Leave(KErrNotSupported);	
+		}
+	}
+
+/*
+ @see CMMFVideoDecodeHwDevice::SynchronizeDecoding()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SynchronizeDecoding(TBool aSynchronize)
+	{
+	iSynchronize = aSynchronize;
+	}
+
+/*
+ @see CMMFVideoDecodeHwDevice::SetBufferOptionsL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetBufferOptionsL(const CMMFDevVideoPlay::TBufferOptions& aOptions)
+	{
+	// check values are within the constraints of this device
+	if(aOptions.iPreDecoderBufferPeriod != 0) 
+		{
+		User::Leave(KErrNotSupported);
+		}
+	if(aOptions.iMaxPostDecodeBufferSize != 0) 
+		{
+		User::Leave(KErrNotSupported);
+		}
+	if(aOptions.iPreDecoderBufferPeriod != 0) 
+		{
+		User::Leave(KErrNotSupported);
+		}
+	if(aOptions.iPostDecoderBufferPeriod != 0) 
+		{
+		User::Leave(KErrNotSupported);
+		}
+	if(aOptions.iMaxInputBufferSize > KVideoDecoderMaxDataBufferSize) 
+		{
+		User::Leave(KErrNotSupported);
+		}
+	if(aOptions.iMinNumInputBuffers > 1) 
+		{
+		User::Leave(KErrNotSupported);
+		}
+	// input is OK; write it
+	iBufferOptions = aOptions;	
+	}
+
+/*
+ @see CMMFVideoDecodeHwDevice::GetBufferOptions()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::GetBufferOptions(CMMFDevVideoPlay::TBufferOptions& aOptions)
+	{
+	aOptions = iBufferOptions;	
+	}
+
+/*
+ @see CMMFVideoDecodeHwDevice::SetHrdVbvSpec()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetHrdVbvSpec(THrdVbvSpecification /* aHrdVbvSpec */, const TDesC8& /* aHrdVbvParams */)
+	{
+	// the decoder is not configurable
+	// however this should not cause a fatal error
+	}
+
+/*
+ @see CMMFVideoDecodeHwDevice::SetOutputDevice()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::SetOutputDevice(CMMFVideoPostProcHwDevice* aDevice)
+	{
+	// we allow output to be sent to a post-processor,
+	// even though this plugin doesn not itself provide one
+	iPostProcOutputDevice = aDevice;
+	}
+
+/*
+ @see CMMFVideoDecodeHwDevice::DecodingPosition()
+ */
+TTimeIntervalMicroSeconds CMdfVideoDecodeHwDeviceAdapter::DecodingPosition()
+	{
+	if(iFrameRate == 0.0) 
+		{
+		return 0;
+		}
+	// this is the total number of pictures decoded	
+	return (iPictureCounters.iPicturesDecoded * (KOneSecond / (TInt)iFrameRate));
+	}
+
+/*
+ @see CMMFVideoDecodeHwDevice::PreDecoderBufferBytes()
+ */
+TUint CMdfVideoDecodeHwDeviceAdapter::PreDecoderBufferBytes()
+	{
+	return 0;
+	}
+
+/*
+ @see CMMFVideoDecodeHwDevice::GetBitstreamCounters()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::GetBitstreamCounters(CMMFDevVideoPlay::TBitstreamCounters& aCounters)
+	{
+	aCounters = iBitstreamCounters;
+	}
+
+/*
+ @see CMMFVideoDecodeHwDevice::NumFreeBuffers()
+ */
+TUint CMdfVideoDecodeHwDeviceAdapter::NumFreeBuffers()
+	{
+	__ASSERT_ALWAYS(iBufferManager, DevVideoHwDeviceDecoderPanic(0));
+
+	if(!FrameBufferAvailable()) 
+		{
+		// if there are too many output buffers waiting, we refuse an input buffer
+		// until some output buffers have been processed.
+		return 0;
+		}
+	else 
+		{
+		return (iBufferManager->DataBuffersAvailable());
+		}
+	}
+
+/*
+ @see CMMFVideoDecodeHwDevice::GetBufferL()
+ 
+ This will return a buffer of the requested size, within min/max constraints
+ */
+TVideoInputBuffer* CMdfVideoDecodeHwDeviceAdapter::GetBufferL(TUint /* aBufferSize */)
+	{
+	__ASSERT_ALWAYS(iBufferManager, DevVideoHwDeviceDecoderPanic(0));
+
+	TVideoInputBuffer& buf = iBufferManager->GetDataBufferL();
+	return &buf;
+	}
+
+/*
+ @see CMMFVideoDecodeHwDevice::WriteCodedDataL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::WriteCodedDataL(TVideoInputBuffer* aInputBuffer)
+	{
+	// Leave on null input buffer
+	if(!aInputBuffer) 
+		{
+		User::Leave(KErrArgument);
+		}
+		
+	// increment received buffer count
+	iBitstreamCounters.iTotalPackets++;
+	
+	CMMFDataBuffer* dataBuffer = static_cast<CMMFDataBuffer*>(iPUInputBuffer);
+	dataBuffer->Data().SetLength(aInputBuffer->iData.Length());
+	dataBuffer->SetPosition(0);
+	iDecoderPUInputPort->MipWriteData(*iPUInputBuffer);
+	iWriteRequestOutstanding = ETrue;	
+	}
+	
+/*
+ @see CMMFVideoPlayHwDevice::CommitL()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::CommitL()
+	{
+	// the decoder is not configurable
+	User::Leave(KErrNotSupported);
+	}
+	
+/*
+ @see CMMFVideoPlayHwDevice::Revert()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::Revert()
+	{
+	// the decoder is not configurable
+	// however this should not cause a fatal error
+	}
+
+void CMdfVideoDecodeHwDeviceAdapter::SetProxy(MMMFDevVideoPlayProxy& aProxy)
+	{
+	ASSERT(!iProxy);
+	iProxy = &aProxy;
+	}
+	
+
+/*
+ @see MMdfDecoderHwDeviceObserver::FrameBufferAvailable()
+ */
+TBool CMdfVideoDecodeHwDeviceAdapter::FrameBufferAvailable() const
+	{
+	__ASSERT_ALWAYS(iBufferManager, DevVideoHwDeviceDecoderPanic(0));
+
+	return (iBufferManager->EmptyFrameBuffersAvailable() > 0);
+	}
+
+/*
+ @see MMdfVideoPlayerHwDeviceObserver::Time()
+ */
+TUint CMdfVideoDecodeHwDeviceAdapter::Time() const 
+	{
+	
+	if(iClockSource) 
+		{
+		return iClockSource->Time().Int64();
+		}
+	else 
+		{
+		// system clock without HAL
+		TInt64 tt64;
+		TTime ttime;
+		ttime.HomeTime();
+		tt64 = ttime.Int64();
+		return (tt64 - iSystemClock);
+		}
+	}
+
+/*
+ @see MMdfVideoPlayerHwDeviceObserver::DisplayFrame()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::DisplayFrame()
+	{
+	__ASSERT_ALWAYS(iBufferManager, DevVideoHwDeviceDecoderPanic(0));
+
+	CVideoFrameBuffer* frameBuffer = NULL;
+	TRAPD(err, frameBuffer = &iBufferManager->GetFilledFrameBufferL(EFalse));
+	if(err != KErrNone) 
+		{
+		// the buffer manager has failed
+		DEBUG_PRINT(_L("HwDevice: Buffer Manager failed"));
+		iProxy->MdvppFatalError(this, err);
+		}
+	else	
+		{
+		// is this the last buffer?
+		iLastFrameBufferReceived = frameBuffer->LastBuffer();
+		
+		TVideoPicture& thePicture = *frameBuffer;
+		
+		// increment picture counter
+		CMMFBuffer& theBuffer = *frameBuffer;
+		if(theBuffer.BufferSize()) 
+			{
+			iPictureCounters.iPicturesDisplayed++;
+			}
+
+		iDisplayPictureAvailable = EFalse;
+		
+		// send it to post-processor output, DSA, or the client
+		if(iPostProcOutputDevice) 
+			{
+			TRAP(err, iPostProcOutputDevice->WritePictureL(&thePicture));
+			}
+		else if(iDSAStarted) 
+			{
+			DisplayFrameDirect(&thePicture);
+			TRAP(err, iBufferManager->ReturnFrameBufferL(thePicture, CVideoFrameBuffer::EEmptied));
+		
+			if (!iLastFrameBufferReceived)
+				{
+				CVideoFrameBuffer* frameBuffer = NULL;
+				TRAP(err, frameBuffer = &iBufferManager->GetEmptyFrameBufferL(ETrue));
+				if (err == KErrNone)
+					{
+					iDecoderPUOutputPort->MopReadData(*frameBuffer);
+					}
+				else 
+					{
+					iProxy->MdvppFatalError(this, err);		
+					return;
+					}
+				}
+			// DoPostPictureNotify() will handle MdvppStreamEnd()	
+			// NB we need to notify the client here as there will be no callback
+			DoPostPictureNotify(); 
+			}
+		else 
+			{
+			iProxy->MdvppNewPicture(&thePicture);
+			}
+		}
+	}
+
+/*
+ @see MMdfVideoPlayerHwDeviceObserver::DiscardFrame()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::DiscardFrame()
+	{
+	__ASSERT_ALWAYS(iBufferManager, DevVideoHwDeviceDecoderPanic(0));
+
+	CVideoFrameBuffer* frameBuffer = NULL;
+	TVideoPicture* thePicture = NULL;
+	TRAPD(err, frameBuffer = &iBufferManager->GetFilledFrameBufferL(EFalse));
+	if(err != KErrNone) 
+		{
+		// the buffer manager has failed
+		DEBUG_PRINT(_L("HwDevice: Buffer Manager failed"));
+		iProxy->MdvppFatalError(this, err);
+		}
+	else	
+		{
+		thePicture = *frameBuffer;
+
+		// increment picture counter
+		CMMFBuffer& theBuffer = *frameBuffer;
+		if(theBuffer.BufferSize()) 
+			{
+			iPictureCounters.iPicturesSkipped++;	
+			}
+
+		iDisplayPictureAvailable = EFalse;
+
+		// this should never leave, as thePicture has been given to us by 
+		// iBufferManager to start with.
+		TRAP(err, iBufferManager->ReturnFrameBufferL(*thePicture, CVideoFrameBuffer::EEmptied));
+		if (err != KErrNone)
+			{			
+			DEBUG_PRINT(_L("HwDevice: ReturnFrameBufferL failed"));
+			iProxy->MdvppFatalError(this, err);
+			}		
+
+		TRAP(err, frameBuffer = &iBufferManager->GetEmptyFrameBufferL(ETrue));
+		if (err == KErrNone)
+			{
+			iDecoderPUOutputPort->MopReadData(*frameBuffer);
+			}
+	
+		// NB we need to notify the client here as there will be no callback
+		DoPostPictureNotify(); 
+		}
+	}
+
+/*
+ @see MMdfVideoPlayerHwDeviceObserver::FrameAvailable()
+ */
+TBool CMdfVideoDecodeHwDeviceAdapter::FrameAvailable() const
+	{
+	return iDisplayPictureAvailable;
+	}
+	
+/*
+ @see MMdfInputPortObserver::MipoWriteDataComplete()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::MipoWriteDataComplete(const MMdfInputPort* aInputPort,
+		CMMFBuffer* /* aBuffer */, TInt aErrorCode)
+	{
+	iWriteRequestOutstanding = EFalse;
+	__ASSERT_ALWAYS(aInputPort == iDecoderPUInputPort, DevVideoHwDeviceDecoderPanic(0));
+	if (aErrorCode != KErrNone)
+		{
+		iProxy->MdvppFatalError(this, aErrorCode);
+		return;
+		}
+	// Return the data buffer, the position tells us how much data
+	// was used	
+	if (!iInputEnd)
+		{
+		TRAPD(err, iBufferManager->ReturnDataBufferL(*iInputBuffer));
+		if(err == KErrNone)
+			{
+			iProxy->MdvppNewBuffers();
+			}	
+		else
+			{
+			iProxy->MdvppFatalError(this, err);
+			}
+		}
+	else
+		{
+		// Send an empty buffer to the decoder to signal the
+		// end of the stream
+		SendLastBuffer();
+		}
+	}
+	
+/*
+ @see MMdfInputPortObserver::MipoStopComplete()
+ */		
+void CMdfVideoDecodeHwDeviceAdapter::MipoDisconnectTunnelComplete(const MMdfInputPort* /* aInputPort */,
+	TInt /* aErrorCode */)
+	{	
+	}
+	
+/*
+ @see MMdfInputPortObserver::MipoRestartComplete()
+ */		
+void CMdfVideoDecodeHwDeviceAdapter::MipoRestartTunnelComplete(const MMdfInputPort* /* aInputPort */,
+	TInt /* aErrorCode */)
+	{	
+	}
+	
+/*
+ @see MMdfOutputPortObserver::MopoReadDataComplete()
+ */
+void CMdfVideoDecodeHwDeviceAdapter::MopoReadDataComplete(const MMdfOutputPort* aOutputPort,
+	CMMFBuffer* aBuffer, TInt aErrorCode)	
+	{
+	if(aErrorCode != KErrNone)
+		{
+		iProxy->MdvppFatalError(this, aErrorCode);
+		return;
+		}
+	
+	if(aOutputPort != iDecoderPUOutputPort)
+		{
+		iProxy->MdvppFatalError(this, KErrArgument);
+		return;
+		}
+		
+	// increment iPicturesDecoded
+	if(aBuffer->BufferSize())
+		{
+		iPictureCounters.iPicturesDecoded++; 
+		}
+
+	iDisplayPictureAvailable = ETrue;
+	
+	TRAPD(err, iBufferManager->ReturnFrameBufferL(aBuffer, CVideoFrameBuffer::EFilled, aBuffer->LastBuffer()));
+	if(err != KErrNone)
+		{
+		iProxy->MdvppFatalError(this, err);
+		}			
+	}
+
+/*
+ @see MMdfOutputPortObserver::MopoStopComplete()
+ */	
+void CMdfVideoDecodeHwDeviceAdapter::MopoDisconnectTunnelComplete(const MMdfOutputPort* /* aOutputPort */,
+	TInt /* aErrorCode */)
+	{	
+	}
+
+/*
+ @see MMdfOutputPortObserver::MopoRestartComplete()
+ */	
+void CMdfVideoDecodeHwDeviceAdapter::MopoRestartTunnelComplete(const MMdfOutputPort* /* aOutputPort */,
+	TInt /* aErrorCode */)
+	{	
+	}
+	
+/*
+ @see MMdfProcessingUnitObserver::InitializeComplete()
+ */	
+void CMdfVideoDecodeHwDeviceAdapter::InitializeComplete(const CMdfProcessingUnit* aPu, TInt aErrorCode)
+	{
+	__ASSERT_ALWAYS(aPu == iDecoderPU, DevVideoHwDeviceDecoderPanic(0));
+	
+	if(aErrorCode != KErrNone)
+		{
+		iProxy->MdvppFatalError(this, aErrorCode);
+		return;
+		}
+			
+	iPUInitialized = ETrue;	
+	}
+	
+/*
+ @see MMdfProcessingUnitObserver::ExecuteComplete()
+ */	
+void CMdfVideoDecodeHwDeviceAdapter::ExecuteComplete(const CMdfProcessingUnit* aPu, TInt aErrorCode)
+	{
+	__ASSERT_ALWAYS(aPu == iDecoderPU, DevVideoHwDeviceDecoderPanic(0));
+	
+	if(aErrorCode != KErrNone)
+		{
+		iProxy->MdvppFatalError(this, aErrorCode);
+		return;
+		}	
+	
+	if (iState == EProcessingUnitExecuting)
+		{
+		DEBUG_PRINT(_L("HwDevice: 3() - Stream end"));
+		iProxy->MdvppStreamEnd();
+		iState = EProcessingUnitIdle;
+		}			
+	}	
+
+// private method - DoPostPictureNotify
+void CMdfVideoDecodeHwDeviceAdapter::DoPostPictureNotify()
+	{
+	__ASSERT_ALWAYS(iBufferManager, DevVideoHwDeviceDecoderPanic(0));
+
+	DEBUG_PRINT(_L("HwDevice: PostPictureNotify"));
+	// notify the client that an input buffer is available if we weren't able to
+	// do it before
+	if(iInputBufferWaiting && iBufferManager->DataBuffersAvailable()) 
+		{
+		iInputBufferWaiting = EFalse;
+		iProxy->MdvppNewBuffers();
+		}
+	
+	// at this point, if there are no frames left, the input buffer is free
+	// and InputEnd() has been called, then we have finished.
+	if(iInputEnd && !iBufferManager->FilledFrameBuffersAvailable() && iBufferManager->DataBuffersAvailable()) 
+		{
+		iLastFrameBufferReceived = ETrue;
+		}
+		
+	// NB iLastFrameBufferReceived may have been set beforehand
+	if(iLastFrameBufferReceived)
+		{
+		DEBUG_PRINT(_L("HwDevice: Stream end"));
+		iProxy->MdvppStreamEnd();
+		}
+	}
+
+// private method - display the frame using direct screen access
+void CMdfVideoDecodeHwDeviceAdapter::DisplayFrameDirect(TVideoPicture* aPicture) 
+	{
+	__ASSERT_ALWAYS(iScreenDevice, DevVideoHwDeviceDecoderPanic(0));
+	
+	DEBUG_PRINT(_L("HwDevice: Displaying frame using DSA"));
+	// draw into our GC
+	// NB this will only work if the picture is a CFbsBitmap
+	CFbsBitmap* theBitmap = aPicture->iData.iRgbBitmap;
+	iScreenDeviceGc->DrawBitmap(iScreenDeviceRect, theBitmap);
+	iScreenDevice->Update();	
+	}
+	
+// private method - display the last frame using direct screen access
+void CMdfVideoDecodeHwDeviceAdapter::DisplayLastFrameDirect() 
+	{
+	__ASSERT_ALWAYS(iScreenDevice, DevVideoHwDeviceDecoderPanic(0));
+
+	DEBUG_PRINT(_L("HwDevice: Redrawing last frame using DSA"));
+	// redraw
+	// NB this will only work if the picture is a CFbsBitmap
+	const TPictureData* lastFrame = NULL;
+	TRAPD(err, lastFrame = &iBufferManager->LastPictureL());
+	if(!err) 
+		{
+		CFbsBitmap* theBitmap = lastFrame->iRgbBitmap;
+		iScreenDeviceGc->DrawBitmap(iScreenDeviceRect, theBitmap);
+		iScreenDevice->Update();
+		}
+	}
+
+void CMdfVideoDecodeHwDeviceAdapter::LoadProcessingUnitL(const CImplementationInformation& aImplInfo)
+	{
+	__ASSERT_ALWAYS(iPuLoader, DevVideoHwDeviceDecoderPanic(0));
+	iPuUid = aImplInfo.ImplementationUid();
+	iDecoderPU = iPuLoader->LoadProcessingUnitL(*this, iPuUid);	
+	// store the opaque data associated with this PU so we can extract information about 
+	// the PU later
+	iPuData = CCodecApiVideoOpaqueData::NewL(aImplInfo.OpaqueData());
+	iManufacturer = HBufC::NewL(iPuData->Manufacturer().Length());
+	iManufacturer->Des().Copy(iPuData->Manufacturer());
+	iMaxPictureSize = iPuData->MaxPictureSize();
+	}
+
+void CMdfVideoDecodeHwDeviceAdapter::SendLastBuffer()
+	{
+	__ASSERT_ALWAYS(iPUInputBuffer, DevVideoHwDeviceDecoderPanic(0));
+	__ASSERT_ALWAYS(iDecoderPUInputPort, DevVideoHwDeviceDecoderPanic(0));
+	// Send an empty buffer to the decoder to signal the
+	// end of the stream
+	iPUInputBuffer->SetLastBuffer(ETrue);
+	CMMFDataBuffer* dataBuffer = static_cast<CMMFDataBuffer*>(iPUInputBuffer);
+	dataBuffer->Data().SetLength(0);
+	dataBuffer->SetPosition(0);
+	iDecoderPUInputPort->MipWriteData(*iPUInputBuffer);	
+	}