--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/videoeditorengine/audioeditorengine/codecs/mp3/inc/ProcMP3FrameHandler.h Fri Jan 29 14:08:33 2010 +0200
@@ -0,0 +1,89 @@
+/*
+* 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:
+*
+*/
+
+
+#ifndef __CPROCMP3FRAMEHANDLER_H__
+#define __CPROCMP3FRAMEHANDLER_H__
+
+/*-- System Headers. --*/
+#include <e32base.h>
+
+/*-- Project Headers. --*/
+#include "AudCommon.h"
+#include "ProcFrameHandler.h"
+#include "ProcInFileHandler.h"
+
+#include "MP3API.h"
+
+/**
+ * Frame handler class for accessing MP3 data elements.
+ *
+ * @author Juha Ojanperä
+ */
+class CProcMP3FrameHandler : public CProcFrameHandler
+ {
+public:
+
+
+ /*
+ * Constructors & destructor
+ */
+ static CProcMP3FrameHandler* NewL();
+ static CProcMP3FrameHandler* NewLC();
+
+ ~CProcMP3FrameHandler();
+
+
+ // From base class CProcFrameHandler ---------->
+ TBool ManipulateGainL(const HBufC8* aFrameIn, HBufC8*& aFrameOut, TInt8 aGain);
+ TBool GetGainL(const HBufC8* aFrame, RArray<TInt>& aGains, TInt& aMaxGain) const;
+ TBool GetNormalizingMargin(const HBufC8* aFrame, TInt8& aMargin) const;
+ TBool IsMixingAvailable() const;
+ // <--------------------------------------------
+
+
+
+private:
+
+ // ConstructL
+ void ConstructL();
+
+ // c++ constructor
+ CProcMP3FrameHandler();
+
+ // internal function for reading MP3 gains
+ TBool GetMP3Gains(const HBufC8* aFrame, RArray<TInt>& aGains, TInt& aMaxGain, TBitStream& aBs) const;
+
+private:
+
+ // a handle to MP3 editing class in MP3AACManipLib
+ CMp3Edit* iMp3Edit;
+
+ // a flag to indicate whether MP3 decoder is initialized
+ mutable TBool decInitialized;
+
+ // a handle to CMPAudDec
+ CMPAudDec *iMpAud;
+ TMpTransportHandle *iTHandle;
+
+
+ friend class CProcMP3InFileHandler;
+
+ };
+
+#endif /*-- __CPROCMP3FRAMEHANDLER_H__ --*/