--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/videoeditorengine/audioeditorengine/inc/ProcVisualizationAO.h Fri Jan 29 14:08:33 2010 +0200
@@ -0,0 +1,108 @@
+/*
+* 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 __CPROCVISUALIZATIONAO_H__
+#define __CPROCVISUALIZATIONAO_H__
+
+#include <e32base.h>
+#include "AudSong.h"
+#include "AudObservers.h"
+
+#include "AudProcessorImpl.h"
+
+class MProcProcessObserver;
+class CProcVisProcessor;
+
+class CProcVisualizationAO : public CActive
+ {
+
+public:
+
+ static CProcVisualizationAO* NewL();
+
+ virtual ~CProcVisualizationAO();
+
+ /**
+ * Starts a clip visualization operation
+ *
+ * Can leave with one of the system wide error codes
+ *
+ * Possible panic code
+ * <code>EVisualizationProcessAlreadyRunning</code>
+ *
+ * @param aClip song to be visualized
+ * @param aSize size of the visualization array (time resolution)
+ * @param aObserver observer to be notified of progress
+ *
+ * @return void
+ *
+ */
+ void StartClipVisualizationL(const CAudClipInfo* aClipInfo, TInt aSize, MAudVisualizationObserver& aObserver, TInt aPriority);
+
+ /**
+ * Cancels a visualization operation
+ *
+ * Possible panic code
+ * <code>EVisualizationProcessNotRunning</code>
+ *
+ */
+ void CancelVisualization();
+
+ /**
+ * Enumeration that represents the state of this object
+ */
+ enum TVisualizationState
+ {
+ EProcGettingClipVisualization = 100,
+ EProcVisualizationIdle
+ };
+
+protected:
+ virtual void RunL();
+ virtual void DoCancel();
+
+private:
+
+ void ConstructL();
+
+private:
+
+ CProcVisualizationAO();
+
+ // visualization observer
+ MAudVisualizationObserver* iObserver;
+
+ // visualization processor
+ CProcVisProcessor* iProcVisProcessor;
+ // visualization state
+ TVisualizationState iVisualizationState;
+
+ // clipinfo visualized
+ const CAudClipInfo* iClipInfo;
+
+ // visualization size
+ TInt iSize;
+
+ // previous progress value sent to the observer
+ TInt iPreviousProgressValue;
+ };
+
+
+#endif