multimediacommsengine/mmceshared/src/mcecomg729codec.cpp
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     1 /*
       
     2 * Copyright (c) 2005 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 "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:    
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 
       
    21 #include "mceg729codec.h"
       
    22 #include "mcecomg729codec.h"
       
    23 
       
    24 #ifdef MCE_COMMON_SERVER_SIDE
       
    25 
       
    26 #include <mmcccodecinformation.h>
       
    27 
       
    28 #endif//MCE_COMMON_SERVER_SIDE
       
    29 
       
    30 // Frame Size
       
    31 const TUint KMceG72FrameSize = 10;
       
    32 
       
    33 // ============================ MEMBER FUNCTIONS ===============================
       
    34 
       
    35 // -----------------------------------------------------------------------------
       
    36 // CMceComG729Codec::NewL
       
    37 // -----------------------------------------------------------------------------
       
    38 //
       
    39 CMceComG729Codec* CMceComG729Codec::NewL( TBuf8<KMceMaxSdpNameLength> aSdpName )
       
    40     {
       
    41     CMceComG729Codec* self = NewLC( aSdpName );
       
    42     CleanupStack::Pop( self );
       
    43     return self;
       
    44     }
       
    45 
       
    46 // -----------------------------------------------------------------------------
       
    47 // CMceComG729Codec::NewLC
       
    48 // -----------------------------------------------------------------------------
       
    49 //
       
    50 CMceComG729Codec* CMceComG729Codec::NewLC( TBuf8<KMceMaxSdpNameLength> aSdpName )
       
    51     {
       
    52     CMceComG729Codec* self = new (ELeave) CMceComG729Codec();
       
    53     CleanupStack::PushL( self );
       
    54     self->ConstructL( aSdpName );
       
    55     return self;
       
    56     }
       
    57 
       
    58 
       
    59 // -----------------------------------------------------------------------------
       
    60 // CMceComG729Codec::~CMceComG729Codec
       
    61 // -----------------------------------------------------------------------------
       
    62 //
       
    63 CMceComG729Codec::~CMceComG729Codec()
       
    64     {
       
    65     }
       
    66     
       
    67 
       
    68 // -----------------------------------------------------------------------------
       
    69 // CMceComG729Codec::CMceComG729Codec
       
    70 // -----------------------------------------------------------------------------
       
    71 //
       
    72 CMceComG729Codec::CMceComG729Codec()
       
    73  : CMceComAudioCodec()
       
    74     {
       
    75     iFourCC = 0;
       
    76     iEnableVAD = EFalse;
       
    77     iSamplingFreq = KMceG729SamplingFreq;
       
    78     iPTime = KMceG729DefaultPtime;          
       
    79     iMaxPTime = KMceG729DefaultMaxPtime;    
       
    80     iBitrate  = KMceG729Bitrate;   
       
    81     iAllowedBitrates = KMceAllowedG729Bitrate8K;
       
    82     iPayloadType = KMceDefaultG729PayloadType; 
       
    83     iCodecMode = KG729CodecMode; 
       
    84     iFrameSize = KMceG72FrameSize; 
       
    85     }
       
    86 
       
    87 
       
    88 // -----------------------------------------------------------------------------
       
    89 // CMceComG729Codec::CloneL
       
    90 // -----------------------------------------------------------------------------
       
    91 //
       
    92 CMceComAudioCodec* CMceComG729Codec::CloneL()
       
    93     {
       
    94     CMceComG729Codec* copy = new (ELeave) CMceComG729Codec();
       
    95     CleanupStack::PushL( copy );
       
    96     
       
    97     copy->ConstructL( *this );
       
    98     CleanupStack::Pop( copy );
       
    99     return copy;
       
   100     }
       
   101 
       
   102 
       
   103 // -----------------------------------------------------------------------------
       
   104 // CMceComG729Codec::ConstructL
       
   105 // -----------------------------------------------------------------------------
       
   106 //
       
   107 void CMceComG729Codec::ConstructL( TBuf8<KMceMaxSdpNameLength> aSdpName )
       
   108     {
       
   109     CMceComAudioCodec::ConstructL( aSdpName );
       
   110     }
       
   111 
       
   112 
       
   113 // -----------------------------------------------------------------------------
       
   114 // CMceComG729Codec::ConstructL
       
   115 // -----------------------------------------------------------------------------
       
   116 //
       
   117 void CMceComG729Codec::ConstructL( CMceComG729Codec& aCodec )
       
   118     {
       
   119     CMceComAudioCodec::ConstructL( aCodec );
       
   120     }
       
   121 
       
   122 
       
   123 // -----------------------------------------------------------------------------
       
   124 // CMceComG729Codec::SetBitrate
       
   125 // -----------------------------------------------------------------------------
       
   126 //
       
   127 TInt CMceComG729Codec::SetBitrate( TUint aBitrate )
       
   128     {
       
   129 	TBool isValid = ETrue;
       
   130 	
       
   131     switch ( aBitrate )
       
   132     	{
       
   133     	case KMceG729Bitrate:
       
   134     	    {
       
   135     	    if ( aBitrate > GetMaxBitRate() )
       
   136     	        {
       
   137         		isValid = EFalse;
       
   138     	        }
       
   139     	    break;
       
   140     	    }
       
   141     	default:
       
   142     		isValid = EFalse;
       
   143     		break;
       
   144     	}
       
   145     	
       
   146     if ( isValid )
       
   147     	{
       
   148         return CMceComCodec::SetBitrate( aBitrate );
       
   149     	}
       
   150     else
       
   151     	{
       
   152     	return KErrNotSupported;
       
   153     	}
       
   154 	
       
   155 	}
       
   156 	 
       
   157 
       
   158 // -----------------------------------------------------------------------------
       
   159 // CMceComG729Codec::SetAllowedBitrates
       
   160 // -----------------------------------------------------------------------------
       
   161 //
       
   162 TInt CMceComG729Codec::SetAllowedBitrates( TUint aBitrates )
       
   163     {
       
   164     TInt error = KErrNone;
       
   165     
       
   166     //Confirm that the bitrate mask is valid
       
   167     //I.e. after all the valid bitrates are set to zero the value should be zero
       
   168     if ( !aBitrates || 
       
   169         ( aBitrates >> 8 ) > 0 ) 
       
   170         {
       
   171         error = KErrArgument;
       
   172         }
       
   173     else
       
   174         {
       
   175         CMceComCodec::SetAllowedBitrates( KMceAllowedG729BitrateAllowAll );
       
   176         iAllowedBitrates &= aBitrates;
       
   177         TUint maxBitrate = GetMaxBitRate();
       
   178         if ( iBitrate > maxBitrate )
       
   179             {
       
   180             error = CMceComCodec::SetBitrate( maxBitrate );
       
   181             }
       
   182         }
       
   183     
       
   184     return error;
       
   185     
       
   186     }
       
   187 
       
   188 
       
   189 // -----------------------------------------------------------------------------
       
   190 // CMceComG729Codec::SetCodecMode
       
   191 // -----------------------------------------------------------------------------
       
   192 //
       
   193 TInt CMceComG729Codec::SetCodecMode( TUint aCodecMode )
       
   194     {
       
   195     if ( KG729CodecMode == aCodecMode )
       
   196         {
       
   197         iCodecMode = aCodecMode;
       
   198         return KErrNone;
       
   199         }
       
   200     else
       
   201         {
       
   202         return KErrNotSupported;
       
   203         }
       
   204     }
       
   205 
       
   206 
       
   207 // -----------------------------------------------------------------------------
       
   208 // CMceComG729Codec::GetMaxBitRate
       
   209 // -----------------------------------------------------------------------------
       
   210 //
       
   211 TUint CMceComG729Codec::GetMaxBitRate()
       
   212 	{
       
   213     if( iAllowedBitrates & KMceAllowedG729Bitrate8K )
       
   214         {
       
   215         return KMceG729Bitrate;
       
   216         }
       
   217     else
       
   218         {
       
   219         return 0;    
       
   220         }
       
   221     }   
       
   222 
       
   223 // -----------------------------------------------------------------------------
       
   224 // CMceComG729Codec::SetPTime
       
   225 // -----------------------------------------------------------------------------
       
   226 //
       
   227 TInt CMceComG729Codec::SetPTime( TUint aPTime )
       
   228     {
       
   229     if ( ( aPTime % KMceG72FrameSize ) == 0 )
       
   230         {
       
   231         return CMceComAudioCodec::SetPTime( aPTime );
       
   232         }
       
   233     else
       
   234         {
       
   235         return KErrNotSupported;
       
   236         }
       
   237     }
       
   238 
       
   239 
       
   240 // -----------------------------------------------------------------------------
       
   241 // CMceComG729Codec::SetMaxPTime
       
   242 // -----------------------------------------------------------------------------
       
   243 //
       
   244 TInt CMceComG729Codec::SetMaxPTime( TUint aMaxPTime )
       
   245     {
       
   246     if ( ( aMaxPTime % KMceG72FrameSize ) == 0 )
       
   247         {
       
   248         return CMceComAudioCodec::SetMaxPTime( aMaxPTime );
       
   249         }
       
   250     else
       
   251         {
       
   252         return KErrNotSupported;
       
   253         }
       
   254     }
       
   255 
       
   256 // End of File