--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/harvester/harvesterplugins/RTPPlugin/src/harvesterrtpmetadatareader.cpp	Mon Jan 18 20:34:07 2010 +0200
@@ -0,0 +1,264 @@
+/*
+* Copyright (c) 2007-2009 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:  Reads metadata from rtp clip meta header
+*
+*/
+
+#include "harvesterrtpmetadatareader.h"
+#include "harvesterrtpplugin.h"
+#include "harvesterlog.h"
+
+_LIT( KTxtSpace, " ");
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//
+CHarvesterRtpMetaDataReader* CHarvesterRtpMetaDataReader::NewL( 
+    const TDesC8* aFileBuffer  )
+    {
+    CHarvesterRtpMetaDataReader* self =
+        new( ELeave ) CHarvesterRtpMetaDataReader( aFileBuffer );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CHarvesterRtpMetaDataReader::~CHarvesterRtpMetaDataReader()
+    {
+    WRITELOG( "CHarvesterRtpMetaDataReader::~CHarvesterRtpMetaDataReader()" );
+    delete iMetaData;
+    }
+
+// ---------------------------------------------------------------------------
+// Read details from meta header
+// ---------------------------------------------------------------------------
+//
+void CHarvesterRtpMetaDataReader::GetClipDetailsL( 
+    CHarvesterRtpClipDetails& aDetails )
+    {
+    WRITELOG( "CHarvesterRtpMetaDataReader::GetClipDetailsL()" );
+    
+    // Attributes
+    TPtrC8 bytes( iDataPtr.Mid( KAttributesPoint, KIntegerBytes ) );
+    TUint data( 0 );
+    User::LeaveIfError( GetValue( bytes, data ) );
+
+    // Recording quality 
+    aDetails.iQuality = 
+        ( TUint8 )( ( data >> KQualityFieldShift ) & KMaxTUint8 );
+    //Recording ongoing 
+    aDetails.iRecOngoing = 
+        ( data >> KOngoingFlagShift ) & ETrue;
+    // Recording completed 
+    aDetails.iRecCompleted = 
+        ( data >> KCompletedFlagShift ) & ETrue;
+    //Recording failed 
+    aDetails.iRecFailed = 
+        ( data >> KFailedFlagShift ) & ETrue;
+    //Parental rate
+    aDetails.iParental =
+         ( TUint8 )( ( data >> KParentalFieldShift ) & KMaxTUint8 );
+    // Post rule    
+    TUint8 postRule = 
+        ( TUint8 )( ( data >> KPostRuleFieldShift ) & KMaxTUint8 );
+    
+    if ( postRule == KContentRightsLockToDevice )
+        {
+        aDetails.iPostRule = ETrue;
+        }
+    else
+        {
+        aDetails.iPostRule = EFalse;
+        }
+        
+    // Duration
+    TUint duration( 0 ); 
+    TPtrC8 durationBytes ( iDataPtr.Mid( KDurationPoint, KIntegerBytes ) );
+    User::LeaveIfError( GetValue( durationBytes, duration ) );
+    duration /= 1000; //Convert to seconds 
+    aDetails.iDuration = static_cast<TReal32>( duration );
+    
+    // Title
+    GetProgramTitleL( aDetails.iTitle );
+    }
+
+// ---------------------------------------------------------------------------
+// Default constructor
+// ---------------------------------------------------------------------------
+//
+CHarvesterRtpMetaDataReader::CHarvesterRtpMetaDataReader(
+    const TDesC8* aFileBuffer )
+    : iMetaTotal( KErrNotFound ),
+      iMetaData( NULL ),
+      iDataPtr( 0, 0 ),
+      iEsgDataPoint ( KErrNotFound ),
+      iFileBuffer( aFileBuffer )
+    {
+    // None
+    }
+
+// ---------------------------------------------------------------------------
+// 2nd phase constructor
+// ---------------------------------------------------------------------------
+//
+void CHarvesterRtpMetaDataReader::ConstructL()
+    {
+    WRITELOG( "CHarvesterRtpMetaDataReader::ConstructL()" );
+    TPtrC8 bytes;
+    
+    if ( iFileBuffer 
+        && iFileBuffer->Length() > KIntegerBytes )
+        {
+        // Read whole meta area
+        bytes.Set( iFileBuffer->Mid( KMetaLengthPoint, KIntegerBytes ) );
+        }        
+
+    TUint value ( 0 );
+    User::LeaveIfError( GetValue( bytes, value ) );
+    
+    iMetaTotal = value;
+    
+    if ( iMetaTotal > KMaxMetaHeaderLength || iMetaTotal <= 0 )
+        {
+        //Length not reasonable, metadata corrupted
+        WRITELOG( "CHarvesterRtpMetaDataReader - metadata corrupted, leave!" );
+        User::Leave( KErrCorrupt );
+        }
+
+    iMetaData = HBufC8::NewL( iMetaTotal );
+    *iMetaData = iFileBuffer->Mid( KMetaLengthPoint, iMetaTotal );
+
+    iDataPtr.Set( iMetaData->Des() );
+            
+    // Check that all data exist in meta header
+    if ( iDataPtr.Length() < iMetaTotal )
+        {
+        //Meta header corrupted
+        WRITELOG( "CHarvesterRtpMetaDataReader - metaheader corrupted, leave!" );
+        User::Leave( KErrCorrupt );
+        }
+
+    // ESG data point ( device info point + device info data )
+    iEsgDataPoint = KDeviceInfoPoint + KStringLengthBytes +
+                    iDataPtr[KDeviceInfoPoint];
+
+    }
+
+// -----------------------------------------------------------------------------
+// Reads data with length info of meta header from the clip
+// -----------------------------------------------------------------------------
+//
+void CHarvesterRtpMetaDataReader::ReadStringDataL( 
+    const TInt aPosition, 
+    TPtrC8& aData )
+    {
+    WRITELOG( "CHarvesterRtpMetaDataReader::ReadStringDataL()" );
+
+    if ( aPosition < 0 
+        || aPosition > iDataPtr.Length() )
+        {
+        WRITELOG( "CHarvesterRtpMetaDataReader - KErrArgument, leave!" );
+        User::Leave( KErrArgument );
+        }
+
+    const TInt len( iDataPtr[aPosition] );
+    
+    if ( len < 0 
+        || len > TInt( KMaxTUint8 ) )
+        {
+        WRITELOG( "CHarvesterRtpMetaDataReader - KErrCorrupt, leave!" );
+        User::Leave( KErrCorrupt );
+        }
+        
+    aData.Set( iDataPtr.Mid( aPosition + KStringLengthBytes, len ) );
+    }
+
+// -----------------------------------------------------------------------------
+// Get value
+// -----------------------------------------------------------------------------
+//
+TInt CHarvesterRtpMetaDataReader::GetValue( 
+    const TDesC8& aBytes, 
+    TUint& aValue )
+    {
+    WRITELOG( "CHarvesterRtpMetaDataReader::GetValue()" );
+    if ( aBytes.Length() >= KIntegerBytes )
+        {
+        aValue = ( TUint )( aBytes[0] );
+        aValue <<= 8;
+        aValue |= ( TUint )( aBytes[1] );
+        aValue <<= 8;
+        aValue |= ( TUint )( aBytes[2] );
+        aValue <<= 8;
+        aValue |= ( TUint )( aBytes[3] );
+        return KErrNone;
+        }
+
+    WRITELOG( "CHarvesterRtpMetaDataReader::GetValue() : KErrUnderFlow!" );
+    return KErrUnderflow;
+    }
+
+// -----------------------------------------------------------------------------
+// Get and format clip title
+// -----------------------------------------------------------------------------
+//
+void CHarvesterRtpMetaDataReader::GetProgramTitleL( TDes& aTitle )
+    {
+    WRITELOG( "CHarvesterRtpMetaDataReader::GetProgramTitleL()" );
+    
+    User::LeaveIfError( iEsgDataPoint );
+    aTitle.Zero();
+
+    TUint32 totalLength( 0 );
+    TPtrC8 service;
+    TPtrC8 program;
+    
+    ReadStringDataL( iEsgDataPoint, service );
+    
+    totalLength += service.Length();
+    totalLength += KSpaceLength;
+
+    // Program name
+    const TInt progPos( iEsgDataPoint + KStringLengthBytes + service.Length() );
+    ReadStringDataL( progPos, program );
+    
+    totalLength += program.Length();
+
+    HBufC8* title = HBufC8::NewLC( totalLength );
+    title->Des().Append( service.Ptr(), service.Length() );
+    title->Des().Append( KTxtSpace );
+    title->Des().Append( program.Ptr(), program.Length() ); 
+    
+    if ( totalLength > KMaxProgramTitle ) 
+        {
+        //Make title fit in max title length
+        TPtrC8 titlePtr( *title );
+        aTitle.Copy( titlePtr.Mid( 0 , KMaxProgramTitle ) );
+        }
+    else
+        {
+        aTitle.Copy( *title );
+        }
+                
+    CleanupStack::PopAndDestroy( title );
+    }
+