diff -r 000000000000 -r 951a5db380a0 videoeditorengine/audioeditorengine/codecs/mp3/src/ProcMP3FrameHandler.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/videoeditorengine/audioeditorengine/codecs/mp3/src/ProcMP3FrameHandler.cpp	Fri Jan 29 14:08:33 2010 +0200
@@ -0,0 +1,217 @@
+/*
+* Copyright (c) 2010 Ixonos Plc.
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the "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:
+* Ixonos Plc
+*
+* Description:
+*
+*/
+
+
+/*-- Project Headers. --*/
+#include "ProcMP3FrameHandler.h"
+#include "ProcMP3InFileHandler.h"
+#include "ProcFrameHandler.h"
+
+#include "MP3API.h"
+
+
+//mixing files
+
+
+
+CProcMP3FrameHandler* 
+CProcMP3FrameHandler::NewL() 
+{    
+  CProcMP3FrameHandler* self = NewLC();
+  CleanupStack::Pop(self);
+  return self;
+}
+
+CProcMP3FrameHandler* 
+CProcMP3FrameHandler::NewLC() 
+{
+  CProcMP3FrameHandler* self = new (ELeave) CProcMP3FrameHandler();
+  CleanupStack::PushL(self);
+  self->ConstructL();
+  return self;
+}
+
+CProcMP3FrameHandler::~CProcMP3FrameHandler() 
+{
+
+    if (iMp3Edit != 0) delete iMp3Edit;
+
+    if (iMpAud != 0)
+        {
+        
+        delete iMpAud;
+        }
+    if (iTHandle != 0)
+        delete iTHandle;
+
+    
+}
+
+CProcMP3FrameHandler::CProcMP3FrameHandler() : decInitialized(EFalse)
+{
+    
+}
+
+void CProcMP3FrameHandler::
+ConstructL() 
+{
+
+    iMp3Edit = CMp3Edit::NewL();
+    
+    iTHandle = new (ELeave) TMpTransportHandle();
+
+    iMp3Edit->InitTransport(iTHandle);
+
+    iMpAud = CMPAudDec::NewL();
+    iMpAud->Init(iTHandle);
+    
+
+}
+
+TBool CProcMP3FrameHandler::
+ManipulateGainL(const HBufC8* aFrameIn, HBufC8*& aFrameOut, TInt8 aGain) 
+{
+
+    aFrameOut = HBufC8::NewLC(aFrameIn->Size());
+
+    aFrameOut->Des().Copy(aFrameIn->Ptr(), aFrameIn->Size());
+
+
+    RArray<TInt> gains;
+    CleanupClosePushL(gains);
+    TInt aMaxGain = 0;
+    TBitStream bs;
+    GetMP3Gains(aFrameOut, gains, aMaxGain, bs);
+    TUint8* globalGains = new (ELeave) TUint8[gains.Count()/2];
+    CleanupStack::PushL(globalGains);
+    TUint* globalGainPos = new (ELeave) TUint[gains.Count()/2];
+    CleanupStack::PushL(globalGainPos);
+
+
+    //for (TInt a = 0 ; a < gains.Count(); a++)
+    for (TInt a = 0 ; a < gains.Count()/2; a++)
+        {
+
+        
+        TInt newGain = aGain*500;
+        newGain = newGain/1500;
+
+        if (gains[a]+newGain < 0) globalGains[a] = 0;
+        else if(gains[a]+newGain > 255) globalGains[a] = 255;
+        else globalGains[a] = static_cast<TUint8>(gains[a*2]+newGain);
+        globalGainPos[a] = gains[a*2+1];
+        }
+    
+//SetMPGlobalGains(BitStream *bs, uint8 numGains, uint8 *globalGain, uint32 *gainPos);
+
+
+    iMp3Edit->SetMPGlobalGains(&bs, static_cast<TUint8>(gains.Count()/2), globalGains, globalGainPos);
+    
+
+    //delete[] globalGains;
+    //delete[] globalGainPos;
+    CleanupStack::PopAndDestroy(globalGainPos);
+    CleanupStack::PopAndDestroy(globalGains);
+    CleanupStack::PopAndDestroy(&gains);
+    CleanupStack::Pop(); // aFrameOut
+    return ETrue;
+    
+}
+
+TBool CProcMP3FrameHandler::
+GetGainL(const HBufC8* aFrame, RArray<TInt>& aGains, TInt& aMaxGain) const
+    {
+    RArray<TInt> gains;
+    TBitStream bs;
+    GetMP3Gains(aFrame, gains, aMaxGain, bs);
+    
+
+    for (TInt a = 0 ; a < gains.Count(); a++)
+        {
+        TInt ga = gains[a]-120;
+
+        if (ga < 0) ga = 0;
+
+        ga = ga*ga;
+        ga = ga/50;
+
+        aGains.Append(ga);
+        a++;
+        }
+
+    gains.Reset();
+    aMaxGain = 120;
+    return ETrue;
+    }
+
+TBool CProcMP3FrameHandler::
+GetMP3Gains(const HBufC8* aFrame, RArray<TInt>& aGains, TInt& aMaxGain, TBitStream& aBs) const
+    {
+
+    TInt16 readBytes, frameBytes, headerBytes = 0;
+
+    if (!decInitialized)
+        {
+        iMp3Edit->SeekSync(iTHandle, const_cast<unsigned char*>(aFrame->Ptr()), 
+        aFrame->Length(), &readBytes, 
+        &frameBytes, &headerBytes, (uint8) 1);
+        iMpAud->Init(iTHandle);
+        decInitialized = ETrue;
+        }
+
+
+    int16 i;
+    uint32 globalGainPos[4];
+    uint8 globalGain[4], nBufs;
+    TBitStream bsTmp;
+
+    const TInt headerLength = 4;
+
+    TUint8* buf = const_cast<TUint8*>(aFrame->Right(aFrame->Size()-headerLength).Ptr());
+    BsInit(&aBs, buf, aFrame->Size() - headerLength);
+    BsSaveBufState(&aBs, &bsTmp);
+
+    //BsSaveBufState(&bsIn, &bsTmp);
+
+    nBufs = iMp3Edit->GetMPGlobalGains(&bsTmp, iTHandle, globalGain, globalGainPos);
+
+    for(i = 0; i < nBufs; i++)
+        {
+        TInt gg = globalGain[i];
+        TInt ggp = globalGainPos[i];
+
+        aGains.Append(gg);
+        aGains.Append(ggp);
+        }
+    aMaxGain = 255;
+
+    return (EFalse);
+    
+    }
+
+TBool CProcMP3FrameHandler::
+GetNormalizingMargin(const HBufC8* /*aFrame*/, TInt8& /*aMargin*/) const
+{
+  return (EFalse);
+}
+
+TBool CProcMP3FrameHandler::IsMixingAvailable() const
+{
+    return EFalse;
+}
+