videofeeds/utils/inc/CIptvRtpTo3gpConverter.h
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     1 /*
       
     2 * Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of the License "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 *
       
    14 * Description:    .rtp to .3gp file converter*
       
    15 */
       
    16 
       
    17 
       
    18 
       
    19 
       
    20 #ifndef CIPTVRTPTO3GPCONVERTER_H
       
    21 #define CIPTVRTPTO3GPCONVERTER_H
       
    22 
       
    23 #include <e32base.h>
       
    24 
       
    25 class RFs;
       
    26 class MIptvRtpTo3gpObserver;
       
    27 
       
    28 /**
       
    29  * .rtp to .3gp file converter
       
    30  *
       
    31  * @lib   IptvUtil.lib
       
    32  * @since Video Center 1.0
       
    33  */
       
    34 class CIptvRtpTo3gpConverter : public CBase
       
    35     {
       
    36 public: // Public constructors and destructors
       
    37 
       
    38     /**
       
    39      * Two-phased constructor
       
    40      *
       
    41      * @param aFs
       
    42      * @param aObserver  Observer to receive conversion notifications
       
    43      * @param aPriority
       
    44      */
       
    45     static CIptvRtpTo3gpConverter* NewL( RFs& aFs, MIptvRtpTo3gpObserver& aObserver, TInt aPriority );
       
    46 
       
    47     /**
       
    48      * C++ destructor
       
    49      */
       
    50     virtual ~CIptvRtpTo3gpConverter();
       
    51 
       
    52 private: // private constructors
       
    53 
       
    54     /**
       
    55      * C++ default constructor
       
    56      *
       
    57      * @param aFs
       
    58      * @param aObserver
       
    59      */
       
    60     CIptvRtpTo3gpConverter( RFs& aFs, MIptvRtpTo3gpObserver& aObserver );
       
    61 
       
    62     /**
       
    63      * 2nd phase constructor
       
    64      *
       
    65      * @param aPriority
       
    66      */
       
    67     void ConstructL( TInt aPriority );
       
    68 
       
    69 public: // public user API
       
    70 
       
    71     /**
       
    72      * Requests conversion generation
       
    73      *  
       
    74      * Conversion completation and failures are notified by the registered observer
       
    75      *  
       
    76      * @param aSrcRtpFilename  Filename for source .rtp clip
       
    77      * @param aDst3gpFilename  Filename for destination .3gp clip
       
    78      */
       
    79     void ConvertL( const TDesC& aSrcRtpFilename, const TDesC& aDst3gpFilename );
       
    80 
       
    81     /**
       
    82      * Cancels ongoing file conversion
       
    83      */
       
    84     void CancelConverstion();
       
    85 
       
    86 private: // implementation, own methods
       
    87 
       
    88     /**
       
    89      * Actual cleanup for internal data/state
       
    90      *
       
    91      * @param aStatus status for conversion operation. If different than KErrNone, output
       
    92      *                file is removed
       
    93      */
       
    94     void DoCleanup( TInt aStatus );
       
    95 
       
    96     /**
       
    97      * Launches idle cleanup and notification
       
    98      *
       
    99      * @param aStatus convertion status, passed to DoCleanup
       
   100      */
       
   101     void DoIdleCleanupAndNotify( TInt aStatus );
       
   102 
       
   103     /**
       
   104      * Callback to cleanup up and notify
       
   105      *
       
   106      * @param aSelf wrapped 'this' pointer
       
   107      */
       
   108     static TInt CleanupAndNotifyCallback( TAny* aSelf );
       
   109 
       
   110 private: // implementation, own data
       
   111 
       
   112     /**
       
   113      * Reference to file system server.
       
   114      */
       
   115     RFs& iFs;
       
   116 
       
   117     /**
       
   118      * Conversion observer
       
   119      */
       
   120     MIptvRtpTo3gpObserver& iObserver;
       
   121 
       
   122     /** 
       
   123      * Cache for 3gp file name
       
   124      * Own.
       
   125      */
       
   126     HBufC* i3gpFilename;
       
   127 
       
   128     /**
       
   129      * Idle callback cleanup and notify
       
   130      * Own.
       
   131      */
       
   132     CIdle* iIdle;
       
   133 
       
   134     /**
       
   135      * Status for converstion, passed through idle cleanup
       
   136      */
       
   137     TInt iIdleStatus;
       
   138 
       
   139     /**
       
   140      * Signals that a first keyframe has been written to file
       
   141      */
       
   142     TBool iKeyframeWritten;
       
   143     };
       
   144 
       
   145 #endif // CIPTVRTPTO3GPCONVERTER_H