1 /*

     2 * Copyright (c) 2010 Ixonos Plc.

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - Initial contribution

    11 *

    12 * Contributors:

    13 * Ixonos Plc

    14 *

    15 * Description:  

    16 *

    17 */

    18 

    19 

    20 /* Copyright (c) 2004, Nokia. All rights reserved. */

    21 

    22 #ifndef __VEDVIDEOCLIPINFOGENERATEDIMP_H__

    23 #define __VEDVIDEOCLIPINFOGENERATEDIMP_H__

    24 

    25 

    26 #include <e32base.h>

    27 

    28 #include "VedCommon.h"

    29 #include "VedVideoClipInfo.h"

    30 #include "VedVideoClipGenerator.h"

    31 

    32 /*

    33  *  Forward declarations.

    34  */

    35 class CVedVideoClipInfoGeneratedOperation;

    36 class CVedVideoClipGeneratedFrameToFrameAdapter;

    37 

    38 /**

    39  * Utility class for getting information about generated video clips.

    40  */

    41 class CVedVideoClipInfoGeneratedImp : public CVedVideoClipInfo

    42     {

    43 public:

    44     CVedVideoClipInfoGeneratedImp(CVedVideoClipGenerator& aGenerator, TBool aOwnsGenerator);

    45 

    46     void ConstructL(MVedVideoClipInfoObserver& aObserver);

    47 

    48     /**

    49      * Destroys the object and releases all resources.

    50      */    

    51     ~CVedVideoClipInfoGeneratedImp();

    52 

    53 

    54     /* General property methods. */

    55 

    56     TPtrC DescriptiveName() const;

    57 

    58     TPtrC FileName() const;

    59     

    60     RFile* FileHandle() const;

    61 

    62     CVedVideoClipGenerator* Generator() const;

    63 

    64     TVedVideoClipClass Class() const;

    65 

    66     TVedVideoFormat Format() const;

    67 

    68     TVedVideoType VideoType() const;

    69 

    70     TSize Resolution() const;

    71 

    72     TBool HasAudio() const;

    73 

    74     TVedAudioType AudioType() const;

    75 

    76     TVedAudioChannelMode AudioChannelMode() const;

    77 

    78     TInt AudioSamplingRate() const;

    79 

    80     TTimeIntervalMicroSeconds Duration() const;

    81 

    82 

    83     /* Video frame property methods. */

    84 

    85     TInt VideoFrameCount() const;

    86 

    87     TTimeIntervalMicroSeconds VideoFrameStartTimeL(TInt aIndex);

    88 

    89     TTimeIntervalMicroSeconds VideoFrameEndTimeL(TInt aIndex);

    90 

    91     TTimeIntervalMicroSeconds VideoFrameDurationL(TInt aIndex);

    92 

    93     TInt VideoFrameSizeL(TInt aIndex);

    94 

    95     TBool VideoFrameIsIntraL(TInt aIndex);

    96 

    97     TInt GetVideoFrameIndexL(TTimeIntervalMicroSeconds aTime);

    98 

    99 

   100     void SetTranscodeFactor(TVedTranscodeFactor aFactor);

   101 

   102     TVedTranscodeFactor TranscodeFactor();

   103 

   104     TBool IsMMSCompatible();

   105 

   106     /* Frame methods. */

   107 

   108     void GetFrameL(MVedVideoClipFrameObserver& aObserver,

   109                             TInt aIndex,

   110                             TSize* const aResolution,

   111                             TDisplayMode aDisplayMode,

   112                             TBool aEnhance,

   113                             TInt aPriority);

   114     

   115     void CancelFrame();

   116 

   117 private:

   118     // Member variables

   119 

   120     // Get audio info operation.

   121     CVedVideoClipInfoGeneratedOperation* iInfoOperation;

   122     // Flag to indicate then info is available

   123     TBool iReady;

   124     // Frame generator

   125     CVedVideoClipGenerator* iGenerator;

   126     TBool iOwnsGenerator;

   127 

   128     CVedVideoClipGeneratedFrameToFrameAdapter* iAdapter;

   129         

   130     TVedTranscodeFactor iTFactor; 

   131     friend class CVedVideoClipInfoGeneratedOperation;

   132     };

   133 

   134 

   135 

   136 class CVedVideoClipGeneratedFrameToFrameAdapter : public CBase, public MVedVideoClipGeneratorFrameObserver

   137     {

   138 public:

   139     CVedVideoClipGeneratedFrameToFrameAdapter(CVedVideoClipInfo& aInfo);

   140     void NotifyVideoClipGeneratorFrameCompleted(CVedVideoClipGenerator& aInfo, 

   141                                                         TInt aError, 

   142                                                         CFbsBitmap* aFrame);

   143 private:

   144     MVedVideoClipFrameObserver* iFrameObserver;

   145     CVedVideoClipInfo& iInfo;

   146 

   147     friend class CVedVideoClipInfoGeneratedImp;

   148     };

   149 

   150 

   151 /**

   152  * Internal class for asynchronous construction of info class.

   153  */

   154 class CVedVideoClipInfoGeneratedOperation : public CActive

   155     {

   156 public:

   157     /* Static constructor */

   158     static CVedVideoClipInfoGeneratedOperation* NewL(CVedVideoClipInfoGeneratedImp* aInfo,

   159                                                      MVedVideoClipInfoObserver& aObserver);

   160 protected:

   161     /*

   162     * From CActive

   163     * Standard active object RunL 

   164     */

   165     void RunL();

   166 

   167     /*

   168     * From CActive

   169     * Standard active object DoCancel

   170     */

   171     void DoCancel();

   172 

   173 private:

   174     /* Default constructor */

   175     CVedVideoClipInfoGeneratedOperation(CVedVideoClipInfoGeneratedImp* aInfo, 

   176                                         MVedVideoClipInfoObserver& aObserver);

   177     /* Standard Symbian OS two phased constructor */

   178     void ConstructL();

   179     /* Destructor */

   180     ~CVedVideoClipInfoGeneratedOperation();

   181 

   182 private:

   183     // Class to contain video clip info.

   184     CVedVideoClipInfoGeneratedImp* iInfo;

   185     // Observer of video clip info operation.

   186     MVedVideoClipInfoObserver* iObserver;

   187 

   188     friend class CVedVideoClipInfoGeneratedImp;

   189     };

   190 

   191 

   192 #endif // __VEDVIDEOCLIPINFOGENERATEDIMP_H__

   193