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 MP3MIXAPI__H

    22 #define MP3MIXAPI__H

    23 

    24 #include "ProcInFileHandler.h"

    25 #include "ProcOutFileHandler.h"

    26 #include "imdct2.h"

    27 #include "editdef.h"

    28 

    29 

    30 class CImdct2;

    31 

    32 class CMp3Mix : public CBase

    33     {

    34 

    35 public:

    36 

    37     IMPORT_C static CMp3Mix* NewL();

    38     IMPORT_C ~CMp3Mix();

    39     

    40     IMPORT_C TBool StartMixingL(CProcInFileHandler* aMP3InFileHandler1, 

    41                                 TInt aStartPosMilli1,

    42                                 CProcInFileHandler* aMP3InFileHandler2,

    43                                 TInt aStartPosMilli2,

    44                                 CProcOutFileHandler* aMP3OutFileHandler,

    45                                 TInt aBitrateShort,

    46                                 TInt aBitrateLong,

    47                                    TInt& aMixingDuration);

    48 

    49     IMPORT_C TBool MixFrameL(HBufC8* aMP3InBuffer1, HBufC8* aMP3InBuffer2, TInt& aFramesProcessed);

    50 

    51     IMPORT_C TBool StopMixing();

    52 

    53 

    54     static TBool WriteL(TDesC& aMessage);

    55     TBool WriteFloatsL(FLOAT* aArray, TInt aLen) const;

    56     TBool WriteIntsL(TInt16* aArray, TInt aLen);

    57 

    58 

    59 

    60 private:

    61 

    62     void ConstructL();

    63     CMp3Mix();

    64 

    65     CProcInFileHandler* iIn1;

    66     CProcInFileHandler* iIn2;

    67     CProcOutFileHandler* iOut1;

    68     TAudioMixerInputInfo* iInfo;

    69     CEditorAPIHandle* iEditorAPIHandle1;

    70     CEditorAPIHandle* iEditorAPIHandle2;

    71     TUint iFrameCount1;

    72     TUint iFrameCount2;

    73 

    74     CEditorChunk* iChunk1;

    75     CEditorChunk* iChunk2;

    76 

    77 

    78     TUint iFramesMixed;

    79 

    80     CL3MixerHelper* iL3Mix;

    81     CImdct2* imdct2; 

    82 

    83     TInt iMixingDuration;

    84 

    85     RFile* iFile;

    86     RFs* iFs;

    87     TBool iFileOpened;

    88     HBufC8* iWriteBuffer; 

    89 

    90 

    91     };

    92 

    93 #endif