1 /*

     2 * Copyright (c) 2006 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:  Play controller for MP3 audio formats.

    15 *

    16 */

    17 

    18 

    19 // INCLUDES

    20 #include "MP3AudioPlayControllerPlugin.h"

    21 #include "MP3AudioPlayControllerPlugin.hrh"

    22 #include "MP3AudioControllerUtility.h"

    23 #include "MP3AudioPlayControllerDecoderBuilder.h"

    24 #include "MP3AudioPlayControllerResource.h"

    25 #include "DevSoundAudioOutput.h"

    26 #include "FileAudioOutput.h"

    27 #include "DebugMacros.h"

    28 

    29 

    30 // CONSTANTS

    31 

    32 // ============================ MEMBER FUNCTIONS ===============================

    33 

    34 // -----------------------------------------------------------------------------

    35 // CMP3AudioPlayControllerPlugin::CMP3AudioPlayControllerPlugin

    36 // -----------------------------------------------------------------------------

    37 //

    38 CMP3AudioPlayControllerPlugin::CMP3AudioPlayControllerPlugin()

    39 	:	iDecoderBuilder(NULL)

    40     {

    41     }

    42 

    43 // -----------------------------------------------------------------------------

    44 // CMP3AudioPlayControllerPlugin::ConstructL

    45 // -----------------------------------------------------------------------------

    46 //

    47 void CMP3AudioPlayControllerPlugin::ConstructL()

    48     {

    49     CAdvancedAudioPlayController::ConstructL();

    50 

    51 	iAudioResource = CMP3AudioPlayControllerResource::NewL();

    52     TAapProperties aapProperties = iAudioResource->PropertiesL();

    53     iSharedBufferMaxNum = aapProperties.iSharedBufferMaxNum;

    54     iSharedBufferMaxSize = aapProperties.iSharedBufferMaxSize;

    55     iMetaDataSupport = aapProperties.iMetaDataSupport;

    56 

    57 	iAudioUtility = CMP3AudioControllerUtility::NewL();

    58 	iDecoderBuilder = CMP3AudioPlayControllerDecoderBuilder::NewL();

    59     }

    60 

    61 // -----------------------------------------------------------------------------

    62 // CMP3AudioPlayControllerPlugin::NewL

    63 // -----------------------------------------------------------------------------

    64 //

    65 CMP3AudioPlayControllerPlugin* CMP3AudioPlayControllerPlugin::NewL()

    66     {

    67 	DP0(_L("CMP3AudioPlayControllerPlugin::NewL"));

    68     CMP3AudioPlayControllerPlugin* self = new(ELeave) CMP3AudioPlayControllerPlugin;

    69     CleanupStack::PushL(self);

    70     self->ConstructL();

    71     CleanupStack::Pop(self);

    72     return self;

    73     }

    74 

    75 // Destructor

    76 CMP3AudioPlayControllerPlugin::~CMP3AudioPlayControllerPlugin()

    77     {

    78 	DP0(_L("CMP3AudioPlayControllerPlugin::~CMP3AudioPlayControllerPlugin"));

    79    

    80     if (iIsDRMProtected)

    81 		{

    82 		delete iDataSource;

    83 		}

    84 

    85     if ((iState != EStopped) && (iState != EInitialized) && iAudioOutput)

    86         {

    87         TRAPD(err, iAudioOutput->StopL());

    88 		err = err;

    89         }

    90 

    91 	delete iDecoderBuilder;

    92     delete iAudioUtility;

    93     delete iAudioResource;

    94     delete iAudioOutput;

    95 	}

    96 

    97 // -----------------------------------------------------------------------------

    98 // CMP3AudioPlayControllerPlugin::DoAddDataSourceL

    99 // Initialization of Clip properties. We build a table needed for positioning.

   100 // -----------------------------------------------------------------------------

   101 //

   102 void CMP3AudioPlayControllerPlugin::DoAddDataSourceL()

   103     {

   104     DP0(_L("CMP3AudioPlayControllerPlugin::DoAddDataSourceL"));

   105     }

   106 

   107 // -----------------------------------------------------------------------------

   108 // CMP3AudioPlayControllerPlugin::DoAddDataSinkL

   109 // -----------------------------------------------------------------------------

   110 //

   111 void CMP3AudioPlayControllerPlugin::DoAddDataSinkL()

   112     {

   113     DP0(_L("CMP3AudioPlayControllerPlugin::DoAddDataSinkL"));

   114     if (iDataSink->DataSinkType() == KUidMmfAudioOutput)

   115 		{

   116 		iAudioOutput = CDevSoundAudioOutput::NewL(iPrioritySettings, *this, *iMMFDevSound);

   117 		iDecoderType = KMP3Decoder;

   118         }

   119     else if (iDataSink->DataSinkType() == KUidMmfFileSink)

   120         {

   121 		iAudioOutput = CFileAudioOutput::NewL(*iDataSink, iPrioritySettings, *this);

   122 		iDecoderType = KMP3Converter;

   123         }

   124     else

   125         {

   126         User::Leave(KErrNotSupported);

   127         }

   128 	}

   129 

   130 // -----------------------------------------------------------------------------

   131 // CMP3AudioPlayControllerPlugin::DoReadHeaderL

   132 // -----------------------------------------------------------------------------

   133 //

   134 void CMP3AudioPlayControllerPlugin::DoReadHeaderL(CMMFDataBuffer* aBuffer)

   135     {

   136     DP0(_L("CMP3AudioPlayControllerPlugin::DoReadHeaderL"));

   137 

   138     iAudioUtility->ScanHeaderL(aBuffer);

   139 

   140     iHeaderOffset = iAudioUtility->HeaderOffset();

   141     iSyncOffset = iAudioUtility->SyncOffset();

   142     iSampleRate = iAudioUtility->SampleRate();

   143     iSinkSampleRate = iSampleRate; // Default same as source

   144 //    iBitRate = iAudioUtility->BitRate();

   145 //    iDuration = iAudioUtility->Duration();

   146     iChannels = iAudioUtility->Channels();

   147 //    iSinkNumChannels = iChannels; // Default same as source

   148 //    iSinkNumChannels = iAudioUtility->ChannelsOut();

   149     iDataType = TFourCC(' ','M','P','3');

   150     

   151     if (!(iChannels == 1 || iChannels == 2))

   152         {

   153         User::Leave(KErrNotSupported);

   154         }

   155     

   156 //    iCurrentPosition = iHeaderOffset;

   157 //    iReadHeader = EFalse;

   158     }

   159 

   160 CAdvancedAudioDecoder* CMP3AudioPlayControllerPlugin::BuildDecoderL()

   161 	{

   162 	return iDecoderBuilder->BuildDecoderL(iDecoderType);

   163 	}

   164 

   165 // ========================== OTHER EXPORTED FUNCTIONS =========================

   166 

   167 // Exported proxy for instantiation method resolution

   168 // Define the interface UIDs

   169 const TImplementationProxy ImplementationTable[] =

   170     {

   171     IMPLEMENTATION_PROXY_ENTRY(KUIDMP3PlayControllerPluginImplementation, CMP3AudioPlayControllerPlugin::NewL)

   172     };

   173 

   174 // -----------------------------------------------------------------------------

   175 // ImplementationGroupProxy

   176 // -----------------------------------------------------------------------------

   177 //

   178 EXPORT_C const TImplementationProxy* ImplementationGroupProxy(

   179     TInt& aTableCount)

   180     {

   181     aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);

   182     return ImplementationTable;

   183     }

   184 

   185 // End of file