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 #ifndef AACCONSTANTS_H

    21 #define AACCONSTANTS_H

    22 

    23 

    24 // length of a silent mono AAC frame

    25 const TInt KSilentMonoAACFrameLenght = 6;

    26 

    27 // silent mono AAC frame

    28 const TUint8 KSilentMonoAACFrame[KSilentMonoAACFrameLenght] =

    29     {

    30     0,

    31     0,

    32     0,

    33     128,

    34     35,

    35     222

    36     };

    37 

    38 // length of a silent stereo AAC frame

    39 const TInt KSilentStereoAACFrameLenght = 8;

    40 

    41 // silent stereo AAC frame

    42 const TUint8 KSilentStereoAACFrame[KSilentStereoAACFrameLenght] =

    43     {

    44     33,

    45     0,

    46     64,

    47     0,

    48     4,

    49     0,

    50     0,

    51     71

    52     };

    53 

    54 

    55 // a class to encapsule info needed by AAC frame handler

    56 class TAACFrameHandlerInfo

    57     {

    58 

    59 public:

    60 

    61     TUint8    iNumChannels; 

    62     TUint8    iNumCouplingChannels;

    63     TUint8    iSampleRateID;

    64     TUint8    iProfileID;

    65     TUint8    iIs960;

    66     TUint8  isSBR;

    67     TUint8    iIsParametricStereo;

    68     };

    69 

    70 

    71 // AAC specific constants

    72 enum

    73 {

    74   SCE_ELEMENT = 0,

    75   CPE_ELEMENT = 1,

    76   LFE_ELEMENT = 3,

    77 

    78   LC_OBJECT   = 1,

    79  

    80   LTP_OBJECT  = 3,

    81 

    82 

    83 

    84   AAC_ADIF    = 0,

    85 

    86 

    87   AAC_ADTS    = 1,

    88 

    89   AAC_MP4     = 2,

    90 

    91   TNS_TOOL    = 1,

    92  

    93   LTP_TOOL    = 2,

    94 

    95   PNS_TOOL    = 4,

    96 

    97   MS_TOOL     = 8,

    98   IS_TOOL     = 16,

    99 

   100   SBR_TOOL    = 32,

   101 

   102   LAST_TOOL   = 32768

   103 };

   104 

   105 #endif