h264_dec/arih264dechwdevice/src/arih264dechwdevice.cpp
changeset 0 bb31fbe78861
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/h264_dec/arih264dechwdevice/src/arih264dechwdevice.cpp	Fri Jul 23 16:58:44 2010 +0100
@@ -0,0 +1,2230 @@
+/*
+* Copyright (c) 2009 Aricent and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:
+* Aricent - initial contribution.
+*
+* Contributors:
+*
+* Description:
+* This is a source file, required for arih264dechwdevice
+*
+*/
+
+//User includes
+#include "arih264dechwdevice.h"
+#include "arih264decwrapper.h"
+#include "aristatemachine.h"
+#include "ariprint.h"
+
+//
+//CAriH264decHwDevice
+//
+
+_LIT( KManufacturer, "Aricent" );
+
+_LIT( KIdentifier, "H264 Video Decoder" );
+
+//supported h264 mime types
+_LIT8( KH264SupportedMimeType, "video/H264" );
+
+
+//---------------------------------------------------------------------------
+//1st phase constructor of CAriH264decHwDevice
+//---------------------------------------------------------------------------
+//
+CMMFVideoDecodeHwDevice* CAriH264decHwDevice::NewL()
+	{
+	PRINT_ENTRY;
+	CAriH264decHwDevice* self = new ( ELeave ) CAriH264decHwDevice;
+	CleanupStack::PushL( self );
+	self->ConstructL();
+	CleanupStack::Pop();
+	PRINT_EXIT;
+	return self;
+	}
+
+//---------------------------------------------------------------------------
+//Destructor
+//---------------------------------------------------------------------------
+//
+CAriH264decHwDevice::~CAriH264decHwDevice()
+	{
+	PRINT_ENTRY;
+	delete iInputFormat;
+	delete iEngine;
+	delete iCodec;
+	delete iState;
+
+    delete iVideoPictureHeader;
+
+	// This is required becoz user may say exit before start at that point
+	// OutputFreeBuffer is not created
+	if ( iOutputFreeBuffer )
+		{
+		for( TInt i = 0 ; i < KMaxOutputBuffers; i++ )
+			{
+            if ( ( iOutputFreeBuffer + i )->iHeader )
+                {
+			    delete ( iOutputFreeBuffer + i )->iHeader;
+                }
+			if ( ( iOutputFreeBuffer + i )->iData.iRawData )
+				{
+				delete
+				( TUint8* )( iOutputFreeBuffer + i )->iData.iRawData->Ptr();
+				}
+            if ( ( iOutputFreeBuffer + i )->iData.iRawData )
+                {
+			    delete ( iOutputFreeBuffer + i )->iData.iRawData;
+                }
+			}
+		delete [] iOutputFreeBuffer;
+		}
+
+	if ( iInputFreeBuffers )
+		{
+		for ( TInt i = 0 ; i < iBufferOptions.iMinNumInputBuffers; i++ )
+			{
+			delete [] ( TUint8* )iInputFreeBuffers[i].iData.Ptr();
+			delete iInputFreeBuffers[i].iUser;
+			}
+		delete [] iInputFreeBuffers;
+		}
+
+	if ( iCustomBufferOptions )
+		{
+		delete iCustomBufferOptions;
+		}
+
+    iOutputFreeBufferQueue.Close();
+	iInputFreeBufferQueue.Close();
+
+	iMaxPictureRates.Reset();
+	iMaxPictureRates.Close();
+	iSupportedFormats.Reset();
+	iSupportedFormats.Close();
+
+    iOutputDevice = NULL;
+    iMMFDevVideoPlayProxy = NULL;
+    iCustomBufferHandle = NULL;
+
+	PRINT_EXIT;
+    }
+//---------------------------------------------------------------------------
+//Retrieves a custom interface to the device.
+//---------------------------------------------------------------------------
+//
+TAny* CAriH264decHwDevice::CustomInterface( TUid /*aInterface*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_EXIT;
+	return NULL;
+	}
+
+//---------------------------------------------------------------------------
+//Retrieves decoder information about this hardware device. The device
+//creates a CVideoDecoderInfo structure, fills it with correct data,
+//pushes it to the cleanup stack and returns it. The client will delete the
+//object when it is no longer needed.
+//---------------------------------------------------------------------------
+//
+CVideoDecoderInfo* CAriH264decHwDevice::VideoDecoderInfoLC()
+	{
+    PRINT_ENTRY;
+
+    // construct the video types for iVidTypes
+	CCompressedVideoFormat* format = NULL;
+	format = CCompressedVideoFormat::NewL( KH264SupportedMimeType );
+	CleanupStack::PushL(format);
+	TInt status = iSupportedFormats.Append( format );
+	if ( status != KErrNone )
+		{
+		PRINT_MSG( LEVEL_LOW, ( " Format support is not done, retval of "
+				"append = %d \n", status ) );
+		}
+	CleanupStack::Pop( format );
+
+    for ( TUint i = 0; i < KDecoderInfoCount; i++ )
+		{
+		// max picture rates
+		TPictureRateAndSize pictureRateAndSize;
+		pictureRateAndSize.iPictureSize = TSize( KMaxFrameWidth,
+				                                KMaxFrameHeight );
+		pictureRateAndSize.iPictureRate = KPicRate;
+		status = iMaxPictureRates.Append(pictureRateAndSize);
+		if ( status != KErrNone )
+			{
+			PRINT_MSG( LEVEL_LOW, ( " error in appendng picturerates = %d \n",
+					status ) );
+			}
+		}
+    TUint maxBitRate = KMaxBitRate;
+	CVideoDecoderInfo* videoDecoderInfo = CVideoDecoderInfo::NewL(
+            KUidH264DecoderHwDevice,
+            KManufacturer,
+            KIdentifier,
+            TVersion( 1, 0, 0 ),
+            iSupportedFormats.Array(),
+            // Non-Accelerated
+            EFalse,
+            // Doesnt support Direct Display
+            EFalse,
+            TSize( KMaxFrameWidth, KMaxFrameHeight ),
+            maxBitRate,
+            iMaxPictureRates.Array(),
+            //decoder supports picture loss indications
+            ETrue,
+            //decoder supports slice loss indications
+            ETrue );
+
+    CleanupStack::PushL( videoDecoderInfo );
+
+    PRINT_MSG( LEVEL_LOW, ( "Closing maxPictureRates&supportedFormats\n" ) );
+
+    PRINT_EXIT;
+
+    return videoDecoderInfo;
+	}
+
+//---------------------------------------------------------------------------
+//Reads header information from a coded data unit.
+//---------------------------------------------------------------------------
+//
+TVideoPictureHeader* CAriH264decHwDevice::GetHeaderInformationL(
+								TVideoDataUnitType /*aDataUnitType*/,
+								TVideoDataUnitEncapsulation aEncapsulation,
+								TVideoInputBuffer* aDataUnit )
+	{
+	PRINT_ENTRY;
+    if (!aDataUnit )
+	    {
+	    PRINT_ERR( "Input argument is not proper, aDataUnit is null \n" );
+		User::Leave( KErrArgument );
+		}
+
+    if ( aEncapsulation != EDuElementaryStream )
+    	{
+    	PRINT_ERR( "aEncapsulation is not supported type \n" );
+        User::Leave( KErrNotSupported );
+    	}
+
+    iVideoPictureHeader = new ( ELeave ) TVideoPictureHeader;
+
+	TRAPD( err, CAriH264decWrapper::GetHeaderInfoL( *aDataUnit,
+													*iVideoPictureHeader ) );
+
+    if ( err == KErrNone )
+    	{
+    	PRINT_EXIT;
+        return ( iVideoPictureHeader );
+    	}
+
+    // An error has occured
+    delete iVideoPictureHeader;
+    iVideoPictureHeader = NULL;
+
+    switch ( err )
+        {
+        case KErrCorrupt:
+        case KErrNoMemory:
+        case KErrArgument:
+        case KErrNotSupported:
+            {
+            PRINT_ERR( "GetHeaderInfoL is returned with error \n" );
+            User::Leave( err );
+            break;
+            }
+        case KErrUnderflow:
+            {
+            PRINT_ERR( "GetHeaderInfoL returnd with error KErrUnderflow\n" );
+            break;
+            }
+        default:
+            {
+            PRINT_ERR( "GetHeaderInfoL is returned with error \n" );
+            User::Leave( KErrGeneral );
+            }
+        };
+
+    PRINT_EXIT;
+	return NULL;
+	}
+
+//---------------------------------------------------------------------------
+//Returns a header from GetHeaderInformationL() back to the decoder so that
+//the memory can be freed.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::ReturnHeader( TVideoPictureHeader* aHeader )
+	{
+	PRINT_ENTRY;
+	if ( !iState->IsInitialized() )
+		{
+		if ( iVideoPictureHeader == aHeader )
+			{
+			delete iVideoPictureHeader;
+            iVideoPictureHeader = NULL;
+			}
+		else
+			{
+			iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrArgument );
+			}
+		}
+	else
+		{
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Sets the device input format to a compressed video format.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetInputFormatL(
+								const CCompressedVideoFormat& aFormat,
+								TVideoDataUnitType aDataUnitType,
+								TVideoDataUnitEncapsulation aEncapsulation,
+								TBool aDataInOrder )
+	{
+	PRINT_ENTRY;
+	if ( !iState->IsInitialized() )
+		{
+		if ( ( !aDataInOrder ) ||
+             ( aEncapsulation == EDuGenericPayload ) ||
+             ( aEncapsulation == EDuRtpPayload ) )
+             User::Leave( KErrNotSupported );
+
+		if ( ( aFormat.MimeType().FindF( KH264SupportedMimeType ) !=
+															 KErrNotFound ) )
+
+			{
+			iInputFormat = CCompressedVideoFormat::NewL( aFormat );
+			iDataUnitType  = aDataUnitType;
+			iEncapsulation = aEncapsulation;
+			}
+		else
+			{
+			PRINT_ERR( "aFormat is not supported \n" );
+			User::Leave( KErrNotSupported );
+			}
+		}
+	else
+		{
+		PRINT_ERR( "istate is not initialized yet\n" );
+		User::Leave( KErrNotReady );
+		}
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Sets whether decoding should be synchronized to the current clock source,
+//if any, or if pictures should instead be decoded as soon as possible.
+//If decoding is synchronized, decoding timestamps are used if available,
+//presentation timestamps are used if not. When decoding is not synchronized,
+//pictures are decoded as soon as source data is available for them, and the
+//decoder has a free output buffer. If a clock source is not available,
+//decoding will not be synchronized.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SynchronizeDecoding( TBool /*aSynchronize*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_EXIT;
+	return;
+	}
+
+
+//---------------------------------------------------------------------------
+//Sets the Buffer Options as specified by the client.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetBufferOptionsL(
+						const CMMFDevVideoPlay::TBufferOptions& aOptions )
+	{
+	PRINT_ENTRY;
+	if ( !iState->IsInitialized() )
+		{
+		TTimeIntervalMicroSeconds zerotime( 0 );
+        if ( ( aOptions.iMinNumInputBuffers < KMinInputBuffers ) ||
+             ( aOptions.iPreDecodeBufferSize != 0 ) ||
+             ( aOptions.iMaxPostDecodeBufferSize != 0 ) ||
+             ( aOptions.iPreDecoderBufferPeriod != zerotime ) ||
+             ( aOptions.iPostDecoderBufferPeriod != zerotime ) )
+        	{
+            User::Leave( KErrArgument );
+        	}
+
+		if ( ( aOptions.iMinNumInputBuffers > KMaxInputBuffers ) ||
+               ( aOptions.iMaxInputBufferSize > KMaxInputBufferSize ) )
+			{
+		    User::Leave( KErrNotSupported );
+			}
+
+		iBufferOptions = aOptions;
+		}
+	else
+		{
+		PRINT_ERR( "istate is not initialized yet\n" );
+		User::Leave( KErrNotReady );
+		}
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Gets the video decoder buffer options actually in use.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::GetBufferOptions(
+								 CMMFDevVideoPlay::TBufferOptions& aOptions )
+	{
+	PRINT_ENTRY;
+	if ( !iState->IsInitialized() )
+		{
+		aOptions = iBufferOptions;
+		}
+	else
+		{
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Indicates which HRD/VBV specification is fulfilled in the input stream and
+//any related parameters.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetHrdVbvSpec(
+										THrdVbvSpecification /*aHrdVbvSpec*/,
+										const TDesC8& /*aHrdVbvParams*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_EXIT;
+	iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotSupported );
+	}
+
+//---------------------------------------------------------------------------
+//Sets the output post-processor device to use.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetOutputDevice(
+										 CMMFVideoPostProcHwDevice* aDevice )
+	{
+	PRINT_ENTRY;
+	if ( !iState->IsInitialized() )
+		{
+		if ( !aDevice )
+			{
+			iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrArgument );
+			}
+		else
+			{
+			iOutputDevice = aDevice;
+
+			// checks whether customBuffer supported by o/p device
+			iCustomBufferHandle = ( MMmfVideoBufferManagement* )
+	      ( iOutputDevice->CustomInterface( KMmfVideoBuffermanagementUid ) );
+			}
+		}
+	else
+		{
+		PRINT_ERR( "istate is not initialized yet, "
+						"calling MdvppFatalError on iMMFDevVideoPlayProxy\n" );
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Returns the current decoding position, i.e.
+//the timestamp for the most recently decoded picture.
+//---------------------------------------------------------------------------
+//
+TTimeIntervalMicroSeconds CAriH264decHwDevice::DecodingPosition()
+	{
+	PRINT_ENTRY;
+	if ( iState->IsInitialized() )
+		{
+		PRINT_EXIT;
+		return iDecodingPosition;
+		}
+	else
+		{
+		PRINT_ERR( "iState is not initialised, calling  MdvppFatalError\n" );
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		return ( TTimeIntervalMicroSeconds( 0 ) );
+		}
+	}
+
+//---------------------------------------------------------------------------
+//Returns the current pre-decoder buffer size.
+//---------------------------------------------------------------------------
+//
+TUint CAriH264decHwDevice::PreDecoderBufferBytes()
+	{
+	PRINT_ENTRY;
+    if ( !( iState->IsInitialized() ) )
+        {
+        iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		return ( 0 );
+        }
+
+    PRINT_EXIT;
+    return 0;
+	}
+
+//---------------------------------------------------------------------------
+//Reads various counters related to the received input bitstream
+//and coded data units.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::GetBitstreamCounters(
+							CMMFDevVideoPlay::TBitstreamCounters& aCounters )
+	{
+	PRINT_ENTRY;
+	if ( iState->IsInitialized() )
+		{
+		aCounters = iBitstreamCounters;
+		//Reset the counters to Zero
+		iBitstreamCounters.iLostPackets = 0;
+		iBitstreamCounters.iTotalPackets = 0;
+		}
+	else
+		{
+		PRINT_ERR( "iState is not initialised, calling  MdvppFatalError\n" );
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Retrieves the number of free input buffers the decoder has available
+//---------------------------------------------------------------------------
+//
+TUint CAriH264decHwDevice::NumFreeBuffers()
+	{
+	PRINT_ENTRY;
+	if ( iState->IsInitialized() )
+		{
+		if ( iNumberOfInputBuffersAllocated == 0 )
+		    {
+		    PRINT_EXIT;
+		    return ( iBufferOptions.iMinNumInputBuffers );
+		    }
+		else
+		    {
+		    PRINT_EXIT;
+		    return  ( iInputFreeBufferQueue.Count() );
+		    }
+		}
+	else
+		{
+		PRINT_ERR( "iState is not initialised, calling  MdvppFatalError\n" );
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		return( 0 );
+		}
+	}
+
+//---------------------------------------------------------------------------
+//Returns an input buffer of size aBufferSize. If no buffer is available
+//then NULL is returned.
+//---------------------------------------------------------------------------
+//
+TVideoInputBuffer* CAriH264decHwDevice::GetBufferL( TUint aBufferSize )
+	{
+	PRINT_ENTRY;
+	if ( !( iState->IsInitialized() ) )
+        {
+        PRINT_ERR( "istate is not initialized yet\n" );
+        User::Leave( KErrNotReady );
+		return NULL;
+        }
+
+    if ( iState->IsInputEndPending() )
+	    {
+	    PRINT_ERR( "input is pending\n" );
+		User::Leave( KErrNotReady );
+		return NULL;
+	    }
+
+    if ( aBufferSize > iBufferOptions.iMaxInputBufferSize )
+        {
+        PRINT_ERR( "aBufferSize is more than the allowed size\n" );
+        User::Leave( KErrArgument );
+        return NULL;
+        }
+
+
+	TVideoInputBuffer *inBuffer;
+
+    if ( iNumberOfInputBuffersAllocated ==
+									     iBufferOptions.iMinNumInputBuffers )
+        {
+        if ( iInputFreeBufferQueue.Count() )
+            {
+            PRINT_ERR( "CreateInputBufferL returned ETRUE\n" );
+            // Reallocate the input buffer if needed
+			CreateInputBufferL( aBufferSize, ETrue );
+			inBuffer = iInputFreeBufferQueue[0];
+			iInputFreeBufferQueue.Remove( 0 );
+
+            }
+        else
+            {
+            PRINT_ERR( "No input free buffers available \n" );
+            return NULL;
+            }
+        }
+    else if ( iNumberOfInputBuffersAllocated <
+										 iBufferOptions.iMinNumInputBuffers )
+        {
+        PRINT_ERR( "CreateInputBufferL returned EFALSE\n" );
+        // Allocate new buffer of the requested size
+        CreateInputBufferL( aBufferSize, EFalse );
+
+        // remove the last created buffer
+        inBuffer = iInputFreeBufferQueue[ iInputFreeBufferQueue.Count() - 1];
+
+        iInputFreeBufferQueue.Remove( iInputFreeBufferQueue.Count() - 1 );
+        }
+    else
+        {
+        PRINT_ERR( "iNumberOfInputBuffersAllocated is less "
+                		"			iBufferOptions.iMinNumInputBuffers\n" );
+        User::Leave( KErrGeneral ); // unwanted state;
+        return NULL;
+        }
+
+    PRINT_EXIT;
+	return inBuffer;
+	}
+
+
+//---------------------------------------------------------------------------
+//Called by DevVideoPlay to write the coded data.
+//Writes a piece of coded video data to the decoder. The data buffer must
+//be retrieved from the decoder with GetBufferL()..
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::WriteCodedDataL( TVideoInputBuffer* aBuffer )
+	{
+	PRINT_ENTRY;
+	if ( !iState->IsInitialized() )
+		{
+		PRINT_ERR( "istate is not initialized yet \n" );
+		User::Leave( KErrNotReady );
+		}
+
+    if ( !aBuffer )
+		{
+		PRINT_ERR( "aBuffer is null \n" );
+		User::Leave( KErrArgument );
+		}
+
+    if ( aBuffer->iData.Length() == 0 )
+	    {
+	    PRINT_ERR( "length of aBuffer is zero \n" );
+		User::Leave( KErrArgument );
+	    }
+
+	if ( iState->IsInputEndPending() )
+		{
+		PRINT_ERR( "IsInputEndPending is true \n" );
+		User::Leave( KErrEof );
+		}
+
+	if ( !iCodec )
+		{
+		iCodec = CAriH264decWrapper::NewL( iDataUnitType,
+				                           iOutputFormat,
+				                           &aBuffer->iData,
+				                           iStreamType );
+
+		iDecoderConfigured = ETrue;
+		}
+
+	if ( ( iDataUnitType == EDuSeveralSegments ) ||
+		 ( iDataUnitType == EDuVideoSegment ) )
+		{
+		iBitstreamCounters.iTotalPackets++;
+		}
+
+	// if custom interface is supported by o/p device get all the buffers
+	//and add it to Engine
+	if ( !iOutputBuffersCreated )
+		{
+		// Set Stream information
+		if ( !iDecoderConfigured )
+			{
+			User::Leave( KErrNotReady );
+			}
+
+    	if ( !iCustomBufferHandle )
+    		{
+			// Get o/p buffer length for creation
+			iCodec->GetParam( CONTROL_CMD_GET_OUTPUTBUFFERLENGTH,
+							  ( TAny* )&iOutputBufferSize );
+			CreateOutputBuffersL();
+    		}
+		iOutputBuffersCreated = ETrue;
+		}
+
+	// add all the o/p buffers to engine
+	if ( !iBufferAdded )
+		{
+		if ( iCustomBufferHandle )
+			{
+			TVideoPicture* videoPicture = NULL;
+			for ( TInt i = 0;
+				  i < iCustomBufferOptions->iNumInputBuffers;
+				  i++ )
+				{
+				videoPicture =
+				iCustomBufferHandle->MmvbmGetBufferL(
+									     iCustomBufferOptions->iBufferSize );
+				if ( videoPicture )
+					{
+					TRAPD( lErr, videoPicture->iHeader =
+									new ( ELeave ) TVideoPictureHeader ) ;
+					if ( lErr != KErrNone )
+                    	{
+                    	iCustomBufferHandle->MmvbmReleaseBuffer(
+															  videoPicture );
+                    	iMMFDevVideoPlayProxy->MdvppFatalError( this,
+															  KErrArgument );
+                    	}
+                    else
+                    	{
+					    iEngine->AddOutput( videoPicture );
+                    	}
+					}
+				else
+					{
+					break;
+					}
+				}
+			}
+		else
+			{
+			for( TInt i = 0; i < iOutputFreeBufferQueue.Count(); i++ )
+				{
+				iEngine->AddOutput( iOutputFreeBufferQueue[0] );
+				iOutputFreeBufferQueue.Remove( 0 );
+				}
+			}
+		iBufferAdded = ETrue;
+		}
+
+	iPictureCounters.iTotalPictures++;
+	iFilledBufferCounter++;
+	TInt err = iEngine->AddInput( aBuffer );
+	PRINT_MSG( LEVEL_LOW, ( "WriteCodedDataL, addinput err=%d", err ) );
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Configures the H264 decoder by passing the required header
+//information for the stream that is getting decoded. The header
+//structurespecific  to the Decoder is passed as iOptional member.
+//---------------------------------------------------------------------------
+//
+#ifdef SYMBIAN_MDF_API_V2
+void CAriH264decHwDevice::ConfigureDecoderL(
+							 const TVideoPictureHeader& aVideoPictureHeader )
+	{
+	PRINT_ENTRY;
+	if ( iState->IsInitialized() )
+		{
+		PRINT_ERR( "iState is already initialised \n" );
+		User::Leave( KErrNotReady );
+		}
+	if ( !iCodec )
+		{
+		iCodec = CAriH264decWrapper::NewL( iDataUnitType,
+				                       iOutputFormat,
+				                       aVideoPictureHeader.iOptional,
+				                       iStreamType );
+
+		if ( !iCodec )
+			{
+			PRINT_ERR( "codec wrapper returned error \n" );
+			User::Leave( KErrNotReady );
+			}
+		iDecoderConfigured = ETrue;
+	    iConfigureDecoderCalled = ETrue;
+		}
+
+	iWidthSource = aVideoPictureHeader.iSizeInMemory.iWidth;
+	iHeightSource = aVideoPictureHeader.iSizeInMemory.iHeight;
+	PRINT_EXIT;
+	}
+#endif
+
+
+
+//---------------------------------------------------------------------------
+//Retrieves post-processing information about this hardware device.
+//The device creates a CPostProcessorInfo structure, fills it with correct
+//data, pushes it to the cleanup stack and returns it. The client will
+//delete the object when it is no longer needed.
+//---------------------------------------------------------------------------
+//
+CPostProcessorInfo* CAriH264decHwDevice::PostProcessorInfoLC()
+	{
+	PRINT_ENTRY;
+	//Aricent decoder does not support any post processing functionality
+	RArray<TUncompressedVideoFormat> supportedFormats;
+	CleanupClosePushL( supportedFormats );
+
+	RArray<TUint32> supportedCombinations;
+	CleanupClosePushL( supportedCombinations );
+
+	TYuvToRgbCapabilities yuvToRgbCapabilities;
+	RArray<TScaleFactor> supportedScaleFactors;
+	CleanupClosePushL( supportedScaleFactors );
+
+	CPostProcessorInfo* info = CPostProcessorInfo::NewL(
+		KUidH264DecoderHwDevice,
+		KManufacturer,
+		KIdentifier,
+		TVersion( 1, 0, 0 ),
+		supportedFormats.Array(),
+		supportedCombinations.Array(),
+		EFalse, //Accelerated or not
+		EFalse, //supports DSA
+		yuvToRgbCapabilities,
+		ERotateNone, //supported rotations
+		EFalse, //supports Arbitrary scaling
+		supportedScaleFactors.Array(),
+		EFalse ) //supports antialiased scaling
+        ;
+
+	CleanupStack::PushL( info );
+
+	CleanupStack::Pop( &supportedScaleFactors );
+	supportedScaleFactors.Close();
+	CleanupStack::Pop( &supportedCombinations );
+	supportedCombinations.Close();
+	CleanupStack::Pop( &supportedFormats );
+	supportedFormats.Close();
+
+	PRINT_EXIT;
+	return info;
+	}
+
+//---------------------------------------------------------------------------
+//Retrieves the list of the output formats that the device supports.
+//The list can depend on the device source format, and therefore
+//SetSourceFormatL() must be called before calling this method.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::GetOutputFormatListL(
+								 RArray<TUncompressedVideoFormat>& aFormats )
+	{
+	PRINT_ENTRY;
+    if ( iState->IsInitialized() )
+    	{
+    	PRINT_ERR( "iState is already initialised \n" );
+        User::Leave( KErrNotReady );
+    	}
+
+    if ( !iInputFormat )
+	    {
+		//Input format should be set before calling this function, as output
+        // format is decided based on input format
+	    PRINT_ERR( "iInputFormat is not set yet \n" );
+		User::Leave( KErrNotReady );
+	    }
+
+	TUncompressedVideoFormat format;
+	format.iDataFormat = EYuvRawData;
+	format.iYuvFormat.iYuv2RgbMatrix = NULL;
+	format.iYuvFormat.iRgb2YuvMatrix = NULL;
+	format.iYuvFormat.iAspectRatioNum = 1;
+	format.iYuvFormat.iAspectRatioDenom = 1;
+
+	aFormats.Reset();
+
+    //The following formats are supported by both H.263 and Mpeg-4
+
+	//YUV 420 Chroma0 Planar
+	format.iYuvFormat.iCoefficients = EYuvBt601Range0;
+	format.iYuvFormat.iPattern      = EYuv420Chroma1;
+	format.iYuvFormat.iDataLayout   = EYuvDataPlanar;
+	aFormats.Append( format );
+
+    //YUV 422 Chroma LE Interleaved
+    format.iYuvFormat.iPattern      = EYuv422Chroma1;
+	format.iYuvFormat.iDataLayout   = EYuvDataInterleavedLE;
+    aFormats.Append( format );
+
+    //YUV 422 Chroma BE Interleaved
+    format.iYuvFormat.iDataLayout   = EYuvDataInterleavedBE;
+    aFormats.Append( format );
+
+    //The following formats are only supported by Mpeg-4
+    if ( iInputFormat->MimeType().FindF( KH264SupportedMimeType ) !=
+															    KErrNotFound )
+        {
+        //BT 601.5 Full Range
+        // YUV 420 Chroma0 Planar
+        format.iYuvFormat.iCoefficients = EYuvBt601Range1;
+	    format.iYuvFormat.iPattern      = EYuv420Chroma1;
+	    format.iYuvFormat.iDataLayout   = EYuvDataPlanar;
+        aFormats.Append( format );
+
+        //YUV 422 Chroma LE Interleaved
+        format.iYuvFormat.iPattern      = EYuv422Chroma1;
+	    format.iYuvFormat.iDataLayout   = EYuvDataInterleavedLE;
+        aFormats.Append( format );
+
+        //YUV 422 Chroma BE Interleaved
+        format.iYuvFormat.iDataLayout   = EYuvDataInterleavedBE;
+        aFormats.Append( format );
+
+        //BT 709 Reduced Range
+	    // YUV 420 Chroma0 Planar
+	    format.iYuvFormat.iCoefficients = EYuvBt709Range0;
+	    format.iYuvFormat.iPattern      = EYuv420Chroma1;
+	    format.iYuvFormat.iDataLayout   = EYuvDataPlanar;
+	    aFormats.Append( format );
+
+        //YUV 422 Chroma LE Interleaved
+        format.iYuvFormat.iPattern      = EYuv422Chroma1;
+	    format.iYuvFormat.iDataLayout   = EYuvDataInterleavedLE;
+        aFormats.Append( format );
+
+        //YUV 422 Chroma BE Interleaved
+        format.iYuvFormat.iDataLayout   = EYuvDataInterleavedBE;
+        aFormats.Append( format );
+
+        //BT 709 Full Range
+        // YUV 420 Chroma0 Planar
+	    format.iYuvFormat.iCoefficients = EYuvBt709Range1;
+	    format.iYuvFormat.iPattern      = EYuv420Chroma1;
+	    format.iYuvFormat.iDataLayout   = EYuvDataPlanar;
+	    aFormats.Append( format );
+
+        //YUV 422 Chroma LE Interleaved
+        format.iYuvFormat.iPattern      = EYuv422Chroma1;
+	    format.iYuvFormat.iDataLayout   = EYuvDataInterleavedLE;
+        aFormats.Append( format );
+
+        //YUV 422 Chroma BE Interleaved
+        format.iYuvFormat.iDataLayout   = EYuvDataInterleavedBE;
+        aFormats.Append( format );
+	    }
+    PRINT_EXIT;
+    }
+
+//---------------------------------------------------------------------------
+// Sets the device output format.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetOutputFormatL(
+									const TUncompressedVideoFormat &aFormat )
+	{
+	PRINT_ENTRY;
+    if ( iState->IsInitialized() )
+    	{
+    	PRINT_ERR( "istate is already initialised \n" );
+        User::Leave( KErrNotReady );
+    	}
+
+    if ( !iInputFormat )
+	    {
+		//Input format should be set before calling this function, as output
+        // format is decided based on input format
+	    PRINT_ERR( "iInputFormat is not set yet \n" );
+		User::Leave( KErrNotReady );
+	    }
+
+	// check whether the output format is supported or not. if not
+    //supported leave
+	RArray<TUncompressedVideoFormat> formats;
+	CleanupClosePushL( formats );
+
+	GetOutputFormatListL( formats );
+
+	TBool flag = EFalse;
+
+	for ( TInt i = 0; i < formats.Count(); i++ )
+		{
+		if ( aFormat == formats[i] )
+			{
+			flag = ETrue;
+			break;
+			}
+		}
+	CleanupStack::Pop ( &formats );
+    formats.Close();
+
+	if ( !flag )
+		{
+		PRINT_ERR( "outputformat is not supported \n" );
+        User::Leave( KErrNotSupported );
+		}
+
+    iOutputFormat = aFormat;
+    PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+// Sets the clock source to use for video timing.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetClockSource( MMMFClockSource* /*aClock*/ )
+	{
+	PRINT_ENTRY;
+    if ( iState->IsInitialized() )
+    	{
+    	PRINT_ERR( "iState is initialised,calling MdvppFatalError \n" );
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+    	}
+
+    PRINT_EXIT;
+	return;
+	}
+
+//---------------------------------------------------------------------------
+// Sets the device video output destination.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetVideoDestScreenL( TBool aScreen )
+	{
+	PRINT_ENTRY;
+	if ( !iState->IsInitialized() )
+		{
+		if ( aScreen )
+			{
+			PRINT_ERR( "KErrNotSupported \n" );
+			User::Leave( KErrNotSupported );
+			}
+		}
+	else
+		{
+		PRINT_ERR( "KErrNotSupported \n" );
+		User::Leave( KErrNotReady );
+		}
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+// Sets the post-processing types to be used.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetPostProcessTypesL(
+										   TUint32 /*aPostProcCombination*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "KErrNotSupported API\n" );
+	PRINT_EXIT;
+	User::Leave( KErrNotSupported );
+	}
+
+//---------------------------------------------------------------------------
+// Sets post-processing options for input (pan-scan ) cropping.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetInputCropOptionsL( const TRect& /*aRect*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "KErrNotSupported API\n" );
+	PRINT_EXIT;
+	User::Leave( KErrNotSupported );
+	}
+
+
+//---------------------------------------------------------------------------
+// Sets post-processing options for YUV to RGB color space conversion
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetYuvToRgbOptionsL(
+										const TYuvToRgbOptions& /*aOptions*/,
+										const TYuvFormat& /*aYuvFormat*/,
+										TRgbFormat /*aRgbFormat*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "KErrNotSupported API\n" );
+	PRINT_EXIT;
+	User::Leave( KErrNotSupported );
+	}
+
+//---------------------------------------------------------------------------
+// Sets post-processing options for YUV to RGB color space conversion. Uses
+//the device input and output formats.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetYuvToRgbOptionsL(
+									   const TYuvToRgbOptions& /*aOptions*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "KErrNotSupported API\n" );
+	PRINT_EXIT;
+	User::Leave( KErrNotSupported );
+	}
+
+//---------------------------------------------------------------------------
+// Sets post-processing options for rotation. SetPostProcessTypesL() must be
+//called before this method is used.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetRotateOptionsL( TRotationType /*aRotationType*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "KErrNotSupported API\n" );
+	PRINT_EXIT;
+	User::Leave( KErrNotSupported );
+	}
+
+//---------------------------------------------------------------------------
+//Sets post-processing options for scaling. SetPostProcessTypesL() must be
+//called before this method is used.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetScaleOptionsL( const TSize& /*aTargetSize*/,
+											TBool /*aAntiAliasFiltering*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "KErrNotSupported API\n" );
+	PRINT_EXIT;
+	User::Leave( KErrNotSupported );
+	}
+
+//---------------------------------------------------------------------------
+//Sets post-processing options for output cropping.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetOutputCropOptionsL( const TRect& /*aRect*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "KErrNotSupported API\n" );
+	PRINT_EXIT;
+	User::Leave( KErrNotSupported );
+	}
+
+
+//---------------------------------------------------------------------------
+//Sets post-processing plug-in specific options.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetPostProcSpecificOptionsL(
+												 const TDesC8& /*aOptions*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "KErrNotSupported API\n" );
+	PRINT_EXIT;
+	User::Leave( KErrNotSupported );
+	}
+
+//---------------------------------------------------------------------------
+//Initializes the device. This method is asynchronous, the device calls
+//MdvppInitializeComplete() of MMFVideoPlayProxy after initialization has
+//completed. After this method has successfully completed, further
+//configuration changes are not possible except where separately noted.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::Initialize()
+	{
+	PRINT_ENTRY;
+    if ( !iState->IsTransitionValid( CStateMachine::EInitializeCommand ) )
+		{
+		PRINT_ERR( "state is not valid in statemachine \n" );
+		iMMFDevVideoPlayProxy->MdvppInitializeComplete( this, KErrNotReady );
+        return;
+		}
+
+    TRAPD( err, iInputFreeBuffers	=
+      new ( ELeave ) TVideoInputBuffer[iBufferOptions.iMinNumInputBuffers] );
+    if ( err )
+        {
+        iMMFDevVideoPlayProxy->MdvppInitializeComplete( this, err );
+        PRINT_ERR( "creation of iInputFreeBuffers returned error\n" );
+		return;
+		}
+
+	iPictureCounters.iPicturesDisplayed = 0;
+	iPictureCounters.iPicturesSkipped = 0;
+	iPictureCounters.iTotalPictures = 0;
+	iPictureCounters.iPicturesDecoded = 0;
+
+	iBitstreamCounters.iLostPackets = 0;
+	iBitstreamCounters.iTotalPackets = 0;
+
+	// if custom interface is supported then enable the interface
+	if ( iCustomBufferHandle )
+		{
+
+		TRAP( err, iCustomBufferOptions =
+		          new ( ELeave ) MMmfVideoBufferManagement::TBufferOptions );
+
+		if ( err != KErrNone )
+			{
+			iMMFDevVideoPlayProxy->MdvppInitializeComplete( this, err );
+			PRINT_ERR( "creation of iCustomBuffeOptions returned error \n" );
+			return;
+			}
+
+		iCustomBufferOptions->iNumInputBuffers = KMaxOutputBuffers + 1;
+		iCustomBufferOptions->iBufferSize	= TSize( KMaxFrameWidth,
+				KMaxFrameHeight );
+
+		PRINT_MSG( LEVEL_HIGH, ( "w = %d, h = %d \n", KMaxFrameWidth,
+				KMaxFrameHeight) );
+
+		iCustomBufferHandle->MmvbmSetObserver(
+							   ( MMmfVideoBufferManagementObserver * )this );
+
+		iCustomBufferHandle->MmvbmEnable( ETrue );
+
+		TRAP ( err, iCustomBufferHandle->MmvbmSetBufferOptionsL(
+												*iCustomBufferOptions ) );
+
+		if ( err != KErrNone )
+			{
+			iMMFDevVideoPlayProxy->MdvppInitializeComplete( this, err );
+			PRINT_ERR( "iCustomBufferHandle->MmvbmSetBufferOptionsL \n" );
+			return;
+			}
+		}
+	// Engine Creation
+	TRAP( err, iEngine = CBaseEngine::NewL( this,
+											 ( MBaseCodec* )iCodec,
+											 EFalse ) );
+	if ( err != KErrNone )
+		{
+		iMMFDevVideoPlayProxy->MdvppInitializeComplete( this, err );
+		PRINT_ERR( "Baseengine::NewL returned error \n" );
+		return;
+		}
+
+	// set input & output formats to Codec
+
+	err = iState->Transit( CStateMachine::EInitializeCommand );
+	if ( err )
+		{
+		iMMFDevVideoPlayProxy->MdvppInitializeComplete( this, err );
+		return;
+		}
+
+	iMMFDevVideoPlayProxy->MdvppInitializeComplete( this, KErrNone );
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Commit all changes since the last CommitL(), Revert() or Initialize()
+//to the hardware device. This only applies to methods which can be called
+//both before AND after DevVideoPlay has been initialized.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::CommitL()
+	{
+	PRINT_ENTRY;
+    if ( !( iState->IsInitialized() ) )
+	    {
+	    PRINT_ERR( "istate is not initialised yet \n" );
+		User::Leave( KErrNotReady );
+	    }
+    PRINT_EXIT;
+    return;
+	}
+
+//---------------------------------------------------------------------------
+//Revert all changes since the last CommitL(), Revert() or Initialize() back
+//to their previous settings. This only applies to methods which can be
+//called both before AND after DevVideoPlay has been initialized..
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::Revert()
+	{
+	PRINT_ENTRY;
+    if ( !( iState->IsInitialized() ) )
+	    {
+	    PRINT_ERR( "istate is not initialised yet \n" );
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotSupported );
+	    }
+    PRINT_EXIT;
+    return;
+	}
+
+//---------------------------------------------------------------------------
+//Not Supported.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::StartDirectScreenAccessL(
+										 const TRect& /*aVideoRect*/,
+									     CFbsScreenDevice& /*aScreenDevice*/,
+										 const TRegion& /*aClipRegion*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "Not supported API \n" );
+	PRINT_EXIT;
+	User::Leave( KErrNotSupported );
+	}
+
+//---------------------------------------------------------------------------
+//Not Supported.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetScreenClipRegion( const TRegion& /*aRegion*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "Not supported API \n" );
+	iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotSupported );
+	PRINT_EXIT;
+	return;
+	}
+
+//---------------------------------------------------------------------------
+//Not Supported.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetPauseOnClipFail( TBool /*aPause*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "Not supported API \n" );
+	iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotSupported );
+	PRINT_EXIT;
+	return;
+	}
+
+//---------------------------------------------------------------------------
+//Not Supported.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::AbortDirectScreenAccess()
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "Not supported API \n" );
+	iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotSupported );
+	PRINT_EXIT;
+	return;
+	}
+
+//---------------------------------------------------------------------------
+//Indicates whether playback is proceeding. This method can be used to check
+//whether playback was paused or not in response to a new clipping region
+//or DSA abort
+//---------------------------------------------------------------------------
+//
+TBool CAriH264decHwDevice::IsPlaying()
+	{
+	PRINT_ENTRY;
+	if ( !( iState->IsInitialized() ) )
+		{
+		PRINT_ERR( "istate is not initialised yet \n" );
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+	PRINT_EXIT;
+	return ( iState->IsStarted() );
+	}
+
+//---------------------------------------------------------------------------
+//Not Supported.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::Redraw()
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "Not supported API \n" );
+	iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotSupported );
+	PRINT_EXIT;
+	return;
+	}
+
+//---------------------------------------------------------------------------
+//Starts video playback, including decoding, post-processing, and rendering.
+//Playback will proceed until it has been stopped or paused, or the end of
+//the bitstream is reached.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::Start()
+	{
+	PRINT_ENTRY;
+    if ( iState->IsPlaying() )
+    	{
+		PRINT_EXIT;
+		PRINT_ERR( "already in playing state \n" );
+        return;
+    	}
+
+	if ( !iState->IsTransitionValid( CStateMachine::EStartCommand ) )
+		{
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+
+	iDecodingPosition = TTimeIntervalMicroSeconds( 0 );
+	iEngine->Start();
+
+	TInt error = iState->Transit( CStateMachine::EStartCommand );
+	if ( error != KErrNone )
+		{
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Stops video playback. No new pictures will be decoded, post-processed,
+//or rendered.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::Stop()
+	{
+	PRINT_ENTRY;
+    if ( iState->IsStopped() )
+    	{
+		PRINT_EXIT;
+		PRINT_ERR( "already in stopped state \n" );
+        return;
+    	}
+
+	if ( !iState->IsTransitionValid( CStateMachine::EStopCommand ) )
+		{
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+
+	iPictureNumber = 0;
+	// Stop & Reset the Engine
+	iEngine->Stop();
+	iEngine->Reset();
+	iBufferAdded			= EFalse;
+	iFilledBufferCounter	= 0;
+	iInputEndCalled			= EFalse;
+	TInt error = iState->Transit( CStateMachine::EStopCommand );
+	if ( error != KErrNone )
+		{
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Pauses video playback, including decoding, post-processing, and rendering.
+//No pictures will be decoded, post-processed, or rendered until playback has
+//been resumed.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::Pause()
+	{
+	PRINT_ENTRY;
+    if ( iState->IsPaused() )
+    	{
+		PRINT_EXIT;
+		PRINT_ERR( "already in paused state \n" );
+        return;
+    	}
+
+	if ( !iState->IsTransitionValid( CStateMachine::EPauseCommand ) )
+		{
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+
+	//Stop the Engine
+	iEngine->Stop();
+
+	TInt error = iState->Transit( CStateMachine::EPauseCommand );
+	if ( error != KErrNone )
+		{
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Resumes video playback after a pause.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::Resume()
+	{
+	PRINT_ENTRY;
+    if ( iState->IsPlaying() )
+    	{
+		PRINT_EXIT;
+		PRINT_ERR( "already in playing state \n" );
+        return;
+    	}
+
+	if ( !iState->IsTransitionValid( CStateMachine::EResumeCommand ) )
+		{
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+
+	// Start The Engine
+	iEngine->Start();
+
+	TInt error = iState->Transit( CStateMachine::EResumeCommand );
+	if ( error != KErrNone )
+		{
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+	PRINT_EXIT;
+	}
+
+
+
+//---------------------------------------------------------------------------
+//Changes to a new decoding and playback position,used for randomly accessing
+//(seeking)the input stream. The position change flushes all input and output
+//buffers. Pre-decoder and post-decoder buffering are handled as if a new
+//bitstream was being decoded. If the device still has buffered pictures that
+//precede the new playback position, they will be discarded. If playback is
+//synchronized to a clock source, the client is responsible for setting the
+//clock source to the new position..
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetPosition(
+						const TTimeIntervalMicroSeconds& aPlaybackPosition )
+	{
+	PRINT_ENTRY;
+	//Start Decoding from new position
+	if ( iState->IsInitialized() )
+		{
+		iEngine->Stop();
+		iEngine->Reset();
+        iDecodingPosition = aPlaybackPosition;
+		iBufferAdded = EFalse;
+		iEngine->Start();
+		}
+	else
+		{
+		PRINT_ERR( "istate is not initialised yet\n" );
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+	PRINT_EXIT;
+	}
+
+
+//---------------------------------------------------------------------------
+//Not Supported.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::FreezePicture(
+							const TTimeIntervalMicroSeconds& /*aTimestamp*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "not supported API \n" );
+	iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotSupported );
+	PRINT_EXIT;
+	return;
+	}
+
+//---------------------------------------------------------------------------
+//Not Supported.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::ReleaseFreeze(
+							const TTimeIntervalMicroSeconds& /*aTimestamp*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "not supported API \n" );
+	iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotSupported );
+	PRINT_EXIT;
+	return;
+	}
+
+//---------------------------------------------------------------------------
+//Returns the current playback position, i.e. the timestamp for the most
+//recently displayed or virtually displayed picture. If the device output
+//is written to another device, the most recent output picture is used
+//---------------------------------------------------------------------------
+//
+TTimeIntervalMicroSeconds CAriH264decHwDevice::PlaybackPosition()
+	{
+	PRINT_ENTRY;
+	// In Decoder case decoding position is same as playback position
+	if ( !( iState->IsInitialized() ) )
+		{
+		PRINT_ERR( "iState is not initialised \n" );
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+
+	PRINT_EXIT;
+	return iDecodingPosition;
+	}
+
+//---------------------------------------------------------------------------
+//Returns the total amount of memory allocated for uncompressed pictures.
+//---------------------------------------------------------------------------
+//
+TUint CAriH264decHwDevice::PictureBufferBytes()
+	{
+	PRINT_ENTRY;
+	if ( !( iState->IsInitialized() ) )
+		{
+		PRINT_ERR( "iState is not initialised \n" );
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+
+	PRINT_EXIT;
+	return( KMaxOutputBuffers * iOutputBufferSize );
+	}
+
+//---------------------------------------------------------------------------
+//Reads various counters related to decoded pictures.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::GetPictureCounters(
+							CMMFDevVideoPlay::TPictureCounters& aCounters )
+	{
+	PRINT_ENTRY;
+    if ( !( iState->IsInitialized() ) )
+    	{
+    	PRINT_ERR( "iState is not initialised yet \n" );
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+    	}
+
+	aCounters = iPictureCounters;
+
+	//Reset the counters to Zero
+	iPictureCounters.iPicturesDisplayed = 0;
+	iPictureCounters.iPicturesSkipped = 0;
+	iPictureCounters.iTotalPictures = 0;
+	iPictureCounters.iPicturesDecoded = 0;
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Not supported API.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetComplexityLevel( TUint /*aLevel*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "not supported API\n" );
+	iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotSupported );
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Not supported API.
+//---------------------------------------------------------------------------
+//
+TUint CAriH264decHwDevice::NumComplexityLevels()
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "not supported API\n" );
+	iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotSupported );
+	PRINT_EXIT;
+	return 0;
+	}
+
+//---------------------------------------------------------------------------
+//Not supported API.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::GetComplexityLevelInfo( TUint /*aLevel*/,
+						CMMFDevVideoPlay::TComplexityLevelInfo& /*aInfo*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "not supported API\n" );
+	iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotSupported );
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Called by the Post Proc hwdevice when a picture is displayed on the screen.
+//Returns a picture back to the device.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::ReturnPicture( TVideoPicture* aPicture )
+	{
+	PRINT_ENTRY;
+    if ( !( iState->IsInitialized() ) )
+    	{
+    	PRINT_ERR( "iState is not initialised yet \n" );
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+    	}
+
+    if ( iCustomBufferHandle )
+		{
+	    delete aPicture->iHeader ;
+	    aPicture->iHeader = NULL ;
+		}
+	else
+		{
+		// add to engine if state is not stopped
+		if ( iState->IsStopped() )
+			{
+			iOutputFreeBufferQueue.Append( aPicture );
+			}
+		else
+			{
+			iEngine->AddOutput( aPicture );
+			}
+		}
+
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Not supported API.
+//---------------------------------------------------------------------------
+//
+TBool CAriH264decHwDevice::GetSnapshotL( TPictureData& /*aPictureData*/,
+								const TUncompressedVideoFormat& /*aFormat*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "not supported API\n" );
+	PRINT_EXIT;
+	User::Leave( KErrNotSupported );
+	return( 0 );
+	}
+
+//---------------------------------------------------------------------------
+//Not supported API.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::GetTimedSnapshotL(
+				TPictureData* /*aPictureData*/,
+				const TUncompressedVideoFormat& /*aFormat*/,
+				const TTimeIntervalMicroSeconds& /*aPresentationTimestamp*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "not supported API\n" );
+	//Should take it from Post Proc HwDevice
+	PRINT_EXIT;
+	User::Leave( KErrNotSupported );
+	}
+
+//---------------------------------------------------------------------------
+//Not supported API.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::GetTimedSnapshotL(
+								TPictureData* /*aPictureData*/,
+								const TUncompressedVideoFormat& /*aFormat*/,
+								const TPictureId& /*aPictureId*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "not supported API\n" );
+	 //Should take it from Post Proc HwDevice
+	PRINT_EXIT;
+	User::Leave( KErrNotSupported );
+	}
+
+//---------------------------------------------------------------------------
+//Not supported API.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::CancelTimedSnapshot()
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "not supported API\n" );
+	iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotSupported );
+	PRINT_EXIT;
+	return;
+	}
+
+
+//---------------------------------------------------------------------------
+//Not supported API.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::GetSupportedSnapshotFormatsL(
+							 RArray<TUncompressedVideoFormat>& /*aFormats*/ )
+	{
+	PRINT_ENTRY;
+	PRINT_ERR( "not supported API\n" );
+	PRINT_EXIT;
+	User::Leave( KErrNotSupported );
+	}
+
+//---------------------------------------------------------------------------
+//sets the Flag iInputEndCalled to ETrue
+//Notifies the hardware device that the end of input data has been reached
+//and no more input data will be written
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::InputEnd()
+	{
+	PRINT_ENTRY;
+	if ( !( iState->IsTransitionValid( CStateMachine::EInputEndCommand ) ) )
+		{
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+
+	iInputEndCalled = ETrue;
+
+	if ( iFilledBufferCounter == 0 )
+		{
+		Stop();
+		PRINT_EXIT;
+		iMMFDevVideoPlayProxy->MdvppStreamEnd();
+        return;
+		}
+
+	TInt error = iState->Transit( CStateMachine::EInputEndCommand );
+
+	if ( error != KErrNone )
+		{
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+		}
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Notifies the Hw Device that input buffer is free
+//---------------------------------------------------------------------------
+//
+TInt CAriH264decHwDevice::InputBufferConsumed ( TAny* aInp, TInt aError  )
+	{
+	PRINT_ENTRY;
+	if ( aInp )
+		{
+		 iInputFreeBufferQueue.Append( ( TVideoInputBuffer* )aInp );
+
+		 //call back to clinet
+		 if ( ( aError != KErrCancel ) && ( !iInputEndCalled ) )
+			iMMFDevVideoPlayProxy->MdvppNewBuffers();
+		}
+	PRINT_EXIT;
+	return ( KErrNone );
+	}
+
+
+//---------------------------------------------------------------------------
+//Notifies the Hw Device that out buffer has decoded data
+//---------------------------------------------------------------------------
+//
+TInt CAriH264decHwDevice::OutputBufferReady ( TAny* aOut, TInt aError )
+	{
+	PRINT_ENTRY;
+    if ( aError == KErrNone )
+        {
+        iPictureNumber++;
+        // call back information regarding slice and picture loss
+
+        SliceAndPictureLoss();
+
+        //Decoded Buffer is available
+        TVideoPicture* videoPicture = ( TVideoPicture* )aOut;
+        videoPicture->iHeader->iPictureNumber = iPictureNumber;
+
+        iFilledBufferCounter--;
+
+        iPictureCounters.iPicturesDecoded++;
+        iPictureCounters.iPicturesDisplayed++;
+
+        iDecodingPosition = videoPicture->iTimestamp;
+		if ( !iOutputDevice )
+			{
+			iMMFDevVideoPlayProxy->MdvppNewPicture( videoPicture );
+
+			if ( iInputEndCalled && ( iFilledBufferCounter == 0 ) )
+				{
+				Stop();
+				PRINT_ERR( "calling streamend\n" );
+				iMMFDevVideoPlayProxy->MdvppStreamEnd();
+				}
+
+			return( KErrNone );
+			}
+		else
+			{
+			TRAPD( error, iOutputDevice->WritePictureL( videoPicture ) );
+
+			if ( error == KErrNone )
+				{
+				if ( iInputEndCalled && ( iFilledBufferCounter == 0 ) )
+					{
+					HandleInputEndInStopping();
+					PRINT_ERR( "calling streamend\n" );
+					iMMFDevVideoPlayProxy->MdvppStreamEnd();
+					}
+				}
+			else if ( error ) // KErrArgument, KErrNotReady
+			   {
+				iPictureCounters.iPicturesDisplayed--;
+				// Currently not handled
+			   }
+            }
+        }
+
+    else if ( aError == KErrCancel )
+		{
+
+		 // Add buffers to output free buffer queue if cutombuffer is not set
+		if ( !iCustomBufferHandle )
+			{
+			iOutputFreeBufferQueue.Append( ( TVideoPicture* )aOut );
+			}
+		else
+			{
+			delete ( ( TVideoPicture* )aOut )->iHeader;
+			( ( TVideoPicture* )aOut )->iHeader = NULL;
+
+			// release the buffer
+			iCustomBufferHandle->MmvbmReleaseBuffer( ( TVideoPicture* )aOut );
+			}
+
+		}
+
+    else // other errors
+        {
+        // currently not handled
+        }
+
+    PRINT_EXIT;
+	return ( KErrNone );
+	}
+
+//---------------------------------------------------------------------------
+//Notifies the hw devcie that Error has occured in PE
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::FatalErrorFromProcessEngine ( TInt aError )
+	{
+	PRINT_ENTRY;
+	iMMFDevVideoPlayProxy->MdvppFatalError( this, aError );
+	PRINT_EXIT;
+	}
+
+/*
+******************************************************************************
+Name            : CommandProcessed
+Description     : Callback to indicate the command has been processed
+Parameter       :
+Return Value    :
+Assumptions     : None
+Known Issues    : None
+******************************************************************************
+*/
+void CAriH264decHwDevice::CommandProcessed ( TInt aCmd, TAny* aCmdData,
+												TInt aError )
+	{
+	PRINT_ENTRY;
+	PRINT_EXIT;
+	}
+
+
+
+//---------------------------------------------------------------------------
+//Call back from output device, indicates buffers availability
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::MmvbmoNewBuffers()
+	{
+	PRINT_ENTRY;
+	TVideoPicture* videoPicture = NULL;
+
+	TRAPD( err, videoPicture = iCustomBufferHandle->MmvbmGetBufferL(
+									iCustomBufferOptions->iBufferSize ) );
+
+	if ( err != KErrNone )
+		{
+		PRINT_ERR( "iCustomBufferHandle->MmvbmGetBufferL returned error\n" );
+		iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrArgument );
+		}
+	if ( videoPicture )
+		{
+		if ( videoPicture->iHeader )
+			{
+			delete videoPicture->iHeader;
+			videoPicture->iHeader = NULL;
+			}
+
+        TRAPD(  err1, videoPicture->iHeader =
+									   new ( ELeave ) TVideoPictureHeader ) ;
+
+        if ( err1 != KErrNone )
+        	{
+        	iCustomBufferHandle->MmvbmReleaseBuffer( videoPicture ) ;
+        	iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrArgument );
+        	}
+        else
+        	{
+		    iEngine->AddOutput( videoPicture );
+        	}
+		}
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Callback from output device.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::MmvbmoReleaseBuffers()
+	{
+	PRINT_ENTRY;
+	iEngine->Stop();
+	iEngine->Reset();
+	PRINT_EXIT;
+	}
+
+
+
+//---------------------------------------------------------------------------
+//Set the proxy implementation to be used. Called just
+//after the object is constructed
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SetProxy( MMMFDevVideoPlayProxy& aProxy )
+	{
+	PRINT_ENTRY;
+	iMMFDevVideoPlayProxy = &aProxy;
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Default constructor of CAriH264decHwDevice
+//---------------------------------------------------------------------------
+//
+CAriH264decHwDevice::CAriH264decHwDevice()
+    :iInputFreeBuffers( NULL ),
+     iOutputDevice( NULL ),
+     iMMFDevVideoPlayProxy( NULL ),
+	 iState( NULL ),
+     iVideoPictureHeader( NULL ),
+	 iDecodingPosition( TTimeIntervalMicroSeconds( 0 ) ),
+     iInputFormat( NULL ),
+     iCodec( NULL ),
+     iEngine( NULL ),
+     iInputEndCalled( EFalse ),
+     iOutputFreeBuffer( NULL ),
+     iFilledBufferCounter( 0 ),
+     iDataUnitType( EDuCodedPicture ),
+     iEncapsulation( EDuElementaryStream ),
+     iOutputBufferSize( 0 ),
+     iOutputBuffersCreated( EFalse ),
+     iPictureNumber( 0 ),
+     iNumberOfInputBuffersAllocated( 0 ),
+	 iCustomBufferHandle( NULL ),
+	 iCustomBufferOptions( NULL ),
+	 iBufferAdded( EFalse ),
+     iConfigureDecoderCalled( EFalse ),
+	 iDecoderConfigured( EFalse )
+    {
+    PRINT_ENTRY;
+	iBufferOptions.iPreDecodeBufferSize 		= 0;
+	iBufferOptions.iMaxPostDecodeBufferSize   	= 0;
+	iBufferOptions.iPreDecoderBufferPeriod 		= 0;
+	iBufferOptions.iPostDecoderBufferPeriod 	= 0;
+	iBufferOptions.iMinNumInputBuffers 			= KMaxInputBuffers;
+	iBufferOptions.iMaxInputBufferSize 			= KMaxInputBufferSize;
+
+
+    // Initializing iOutputFormat with one of the combination supported by
+	iOutputFormat.iDataFormat					= EYuvRawData;
+	iOutputFormat.iYuvFormat.iCoefficients		= EYuvBt601Range0;
+	iOutputFormat.iYuvFormat.iPattern			= EYuv420Chroma1;
+	iOutputFormat.iYuvFormat.iDataLayout		= EYuvDataPlanar;
+	iOutputFormat.iYuvFormat.iYuv2RgbMatrix		= NULL;
+	iOutputFormat.iYuvFormat.iRgb2YuvMatrix		= NULL;
+	iOutputFormat.iYuvFormat.iAspectRatioNum	= 1;
+	iOutputFormat.iYuvFormat.iAspectRatioDenom	= 1;
+	PRINT_EXIT;
+    }
+//---------------------------------------------------------------------------
+//This is the 2nd phase constructor
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::ConstructL()
+	{
+	PRINT_ENTRY;
+	iState = CStateMachine::NewL();
+	PRINT_EXIT;
+    }
+
+//---------------------------------------------------------------------------
+//Module to create output data
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::CreateOutputBuffersL()
+	{
+	PRINT_ENTRY;
+	if ( iOutputFreeBuffer )
+		{
+		for ( TInt i = 0 ; i < KMaxOutputBuffers; i++ )
+			{
+			if ( ( iOutputFreeBuffer + i )->iHeader )
+				{
+				delete ( iOutputFreeBuffer + i )->iHeader;
+				}
+			if ( ( iOutputFreeBuffer + i )->iData.iRawData )
+				{
+				delete
+				( TUint8* )( iOutputFreeBuffer + i )->iData.iRawData->Ptr();
+				}
+			if ( ( iOutputFreeBuffer + i )->iData.iRawData )
+				{
+				delete ( iOutputFreeBuffer + i )->iData.iRawData;
+				}
+			}
+		delete [] iOutputFreeBuffer;
+		}
+	for ( TInt i = 0; i < iOutputFreeBufferQueue.Count(); i++ )
+		{
+		iOutputFreeBufferQueue.Remove( 0 );
+		}
+
+	// Create the output Buffer( s ) and buffers to engine
+	iOutputFreeBuffer = new ( ELeave ) TVideoPicture[KMaxOutputBuffers];
+	TInt i;
+    for ( i = 0 ; i < KMaxOutputBuffers; i++ )
+		{
+        ( iOutputFreeBuffer + i )->iData.iRawData = NULL;
+		( iOutputFreeBuffer + i )->iHeader = NULL;
+        }
+
+	for ( i = 0 ; i < KMaxOutputBuffers; i++ )
+		{
+		TUint8* ptr;
+		TPtr8*  temp;
+
+		ptr = new ( ELeave ) TUint8[iOutputBufferSize];
+		CleanupStack::PushL( ptr );
+		temp = new ( ELeave ) TPtr8( ptr, 0, iOutputBufferSize );
+		CleanupStack::Pop( ptr );
+
+		( iOutputFreeBuffer + i )->iData.iRawData = temp;
+		( iOutputFreeBuffer + i )->iHeader =
+										  new ( ELeave ) TVideoPictureHeader;
+
+		// kunal
+		// set the frame widht and height
+
+		( iOutputFreeBuffer + i )->iData.iDataSize =
+										TSize( iWidthSource,iHeightSource );
+		//Add o/p buffer( s ) to the Queue
+		iEngine->AddOutput( ( iOutputFreeBuffer + i ) );
+		}
+	PRINT_EXIT;
+	}
+
+
+//---------------------------------------------------------------------------
+//Gives callbacks to client regarding slice and picture loss
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::SliceAndPictureLoss()
+	{
+	PRINT_ENTRY;
+	TUint firstMacroblock = 0;
+	TUint numMacroblocks = 0;
+	TPictureId pictureId;
+	TUint picLoss = 0;
+	pictureId.iIdType = TPictureId::EPictureNumber;
+
+	 // call back to client regading picture loss
+	if ( ( iCodec->GetParam( CONTROL_CMD_GET_PICTURELOSSINFO,
+							 ( TAny* )&picLoss ) ) >= KMaxAllowPicLoss )
+		iMMFDevVideoPlayProxy->MdvppPictureLoss();
+
+	PRINT_MSG( LEVEL_LOW, ( "CAriH264decHwDevice::SliceAndPictureLoss, "
+	   			"				calling callback regarding slice loss" ) );
+
+	 // call back to clinet regarding slice loss
+	firstMacroblock = iCodec->GetParam( CONTROL_CMD_GET_SLICELOSSINFO,
+									    ( TAny* )&numMacroblocks );
+
+	if ( ( firstMacroblock != 0 ) || ( numMacroblocks != 0 ) )
+	 	iMMFDevVideoPlayProxy->MdvppSliceLoss( firstMacroblock,
+											   numMacroblocks,
+											   pictureId );
+
+	PRINT_EXIT;
+	}
+
+//---------------------------------------------------------------------------
+//Creates one input Buffer
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::CreateInputBufferL( TUint aBufferSize,
+											  TBool aReallocate )
+	{
+	PRINT_ENTRY;
+	if ( !aReallocate )
+		{
+		// Create the Buffer and add it to Queue
+		TUint8* ptr = new ( ELeave ) TUint8[aBufferSize];
+		TInt* lastBufferFlag  = new ( ELeave ) TInt[sizeof( TInt )];
+		iInputFreeBuffers[iNumberOfInputBuffersAllocated].iData.Set(
+															ptr,
+															0,
+															aBufferSize );
+		iInputFreeBuffers[iNumberOfInputBuffersAllocated].iUser =
+													( TAny* )lastBufferFlag;
+		iInputFreeBufferQueue.Append(
+						iInputFreeBuffers + iNumberOfInputBuffersAllocated );
+		iNumberOfInputBuffersAllocated++;
+		}
+
+	else // input buffers are already created and do reallocation here
+		{
+		TVideoInputBuffer* inBuffer = iInputFreeBufferQueue[0];
+		// check the size of the current with the size of the buffer
+		//present in i/p Q
+		if ( aBufferSize > inBuffer->iData.MaxLength() )
+			{
+			// delete the previous buffer
+			delete [] ( TUint8* )inBuffer->iData.Ptr();
+			delete inBuffer->iUser;
+
+			// reallocate the buffer
+			TUint8* ptr = new ( ELeave ) TUint8[aBufferSize];
+			TInt* lastBufferFlag  = new ( ELeave ) TInt[sizeof( TInt )];
+			inBuffer->iData.Set( ptr, 0, aBufferSize );
+			inBuffer->iUser = ( TAny* )lastBufferFlag;
+			}
+		}
+	PRINT_EXIT;
+	}
+//---------------------------------------------------------------------------
+//When InputEnd is called while the hw device in Stopping State.
+//---------------------------------------------------------------------------
+//
+void CAriH264decHwDevice::HandleInputEndInStopping()
+	{
+	PRINT_ENTRY;
+	if ( iState->IsInputEndPending() )
+		{
+		iPictureNumber = 0;
+		// Stop & Reset the Engine
+		iEngine->Stop();
+		iBufferAdded			= EFalse;
+		iFilledBufferCounter	= 0;
+		iInputEndCalled			= EFalse;
+		TInt error = iState->Transit( CStateMachine::EStopCommand );
+		if ( error != KErrNone )
+			{
+			iMMFDevVideoPlayProxy->MdvppFatalError( this, KErrNotReady );
+			}
+		}
+	PRINT_EXIT;
+	}
+
+
+const TImplementationProxy ImplementationTable[] =
+	{
+	//IMPLEMENTATION_PROXY_ENTRY( 0x20029903, CAriH264decHwDevice::NewL )
+    IMPLEMENTATION_PROXY_ENTRY( KUidH264DecoderHwDeviceImplUid,
+										CAriH264decHwDevice::NewL )
+	};
+
+
+EXPORT_C const TImplementationProxy* ImplementationGroupProxy(
+													      TInt& aTableCount )
+	{
+	PRINT_ENTRY;
+	aTableCount =
+		      sizeof( ImplementationTable ) / sizeof( TImplementationProxy );
+	PRINT_EXIT;
+	return ImplementationTable;
+	}
+
+
+#ifndef EKA2
+GLDEF_C TInt E32Dll( TDllReason )
+    {
+    return KErrNone;
+    }
+
+#endif
+