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 

    21 #ifndef __CPROCTIMEESTIMATEAO_H__

    22 #define __CPROCTIMEESTIMATEAO_H__

    23 

    24 #include <e32base.h>

    25 #include "AudSong.h"

    26 #include "AudCommon.h"

    27 #include "ProcProcessAO.h"

    28 

    29 class CProcProcess;

    30 

    31 

    32 class CProcTimeEstimateAO : public CActive 

    33     {

    34 

    35 public:

    36 

    37     static CProcTimeEstimateAO* NewL();

    38 

    39     virtual ~CProcTimeEstimateAO();

    40 

    41     /**

    42     *

    43     * Starts retrieving audio clip info

    44     *

    45     * @param    aFilename        filename of the input file

    46     * @param    aObserver        observer to be notified of progress

    47     * @param    aProperties        properties of the input file.

    48     *                            Needs to be allocated by the caller,                            

    49     *                            and will filled in as a result of calling

    50     *                            this function

    51     * @param    aPriority        priority of the operation

    52     *

    53     */

    54     TBool StartL(const CAudSong* aSong, MAudTimeEstimateObserver& aTEObserver);

    55     void CancelTimeEstimate();

    56     

    57         

    58       

    59 protected:

    60     virtual void RunL();

    61     virtual void DoCancel();

    62 

    63 private:

    64 

    65     void ConstructL();

    66 

    67 private:

    68     

    69     

    70     // C++ constructor

    71     CProcTimeEstimateAO();

    72     

    73     

    74     // processing AC for getting frames

    75     CProcProcess* iProcessingObject;

    76     

    77     // observer to notify

    78     MAudTimeEstimateObserver* iTEObserver;

    79     

    80     // song

    81     const CAudSong* iSong;

    82     

    83     };

    84 

    85 

    86 #endif