examples/QtQuick/videoapp/videoengine.h

00001 /****************************************************************************
00002 **
00003 ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
00004 ** All rights reserved.
00005 ** Contact: Nokia Corporation
00006 **
00007 **
00008 ** $QT_BEGIN_LICENSE:BSD$
00009 ** You may use this file under the terms of the BSD license as follows:
00010 **
00011 ** "Redistribution and use in source and binary forms, with or without
00012 ** modification, are permitted provided that the following conditions are
00013 ** met:
00014 **   * Redistributions of source code must retain the above copyright
00015 **     notice, this list of conditions and the following disclaimer.
00016 **   * Redistributions in binary form must reproduce the above copyright
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00018 **     the documentation and/or other materials provided with the
00019 **     distribution.
00020 **   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
00021 **     the names of its contributors may be used to endorse or promote
00022 **     products derived from this software without specific prior written
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00025 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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00036 ** $QT_END_LICENSE$
00037 **  Description:  videoengine.h, header file for video player engine.
00038 ****************************************************************************/
00039 
00040 
00041 
00042 #ifndef VIDEOENGINE_H_
00043 #define VIDEOENGINE_H_
00044 
00045 // SYSTEM INCLUDE
00046 #include <videoplayer.h>
00047 
00048 // USER INCLUDE
00049 #include "videocontainer.h"
00050 
00051 // FORWARD DECLARATION
00052 class VideoPlayerWrapper;
00053 
00060 class CVideoPlayerEngine : public CBase, public MVideoPlayerUtilityObserver
00061 {
00062 public: 
00066     enum TPlayerState
00067         {
00068         ENotInitialized = 0,
00069         EInitialized,
00070         EStopped,
00071         EPlaying,
00072         EPaused
00073         };
00074     static CVideoPlayerEngine* NewL(VideoPlayerWrapper *aPlayerPrivate);
00075     static CVideoPlayerEngine* NewLC(VideoPlayerWrapper *aPlayerPrivate);
00076     ~CVideoPlayerEngine();
00077     
00078 public:
00079     void InitL();
00080     void OpenL();
00081     void Play();
00082     void PauseL();
00083     void Stop();
00084     void SetVolume(TInt aValue);
00085 
00086 public:
00087     /* MVideoPlayerUtilityObserver begins */
00088     void MvpuoOpenComplete(TInt aError);
00089     void MvpuoPrepareComplete(TInt aError);
00090     void MvpuoFrameReady(CFbsBitmap& aFrame,TInt aError);
00091     void MvpuoPlayComplete(TInt aError);
00092     void MvpuoEvent(const TMMFEvent& aEvent);
00093     /* MVideoPlayerUtilityObserver begins ends */
00094     
00095     TPlayerState State() const { return iState; }
00096     
00097 private:
00098     CVideoPlayerEngine();
00099     void ConstructL(VideoPlayerWrapper *aPlayerPrivate);
00100 
00101 private:
00102     TPlayerState iState; // Variable for video player engine states.
00103     CVideoPlayerUtility *iPlayer; // Video player utility instance.
00104     CVideoContainer *iVideoContainer; // Pointer to video container.
00105     VideoPlayerWrapper *iPlayerWrapper; //Pointer to video player wrapper class.
00106 };
00107 
00108 #endif /* VIDEOENGINE_H_ */

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