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     2 **

     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the QtMultimedia module of the Qt Toolkit.

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    16 ** GNU Lesser General Public License Usage

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    40 ****************************************************************************/

    41 

    42 #include "qaudiodeviceinfo_symbian_p.h"

    43 #include "qaudio_symbian_p.h"

    44 

    45 QT_BEGIN_NAMESPACE

    46 

    47 QAudioDeviceInfoInternal::QAudioDeviceInfoInternal(QByteArray device,

    48                                                QAudio::Mode mode)

    49     :   m_deviceName(QLatin1String(device))

    50     ,   m_mode(mode)

    51     ,   m_updated(false)

    52 {

    53     QT_TRAP_THROWING(m_devsound.reset(CMMFDevSound::NewL()));

    54 }

    55 

    56 QAudioDeviceInfoInternal::~QAudioDeviceInfoInternal()

    57 {

    58 

    59 }

    60 

    61 QAudioFormat QAudioDeviceInfoInternal::preferredFormat() const

    62 {

    63     QAudioFormat format;

    64     switch (m_mode) {

    65     case QAudio::AudioOutput:

    66         format.setFrequency(44100);

    67         format.setChannels(2);

    68         format.setSampleSize(16);

    69         format.setByteOrder(QAudioFormat::LittleEndian);

    70         format.setSampleType(QAudioFormat::SignedInt);

    71         format.setCodec(QLatin1String("audio/pcm"));

    72         break;

    73 

    74     case QAudio::AudioInput:

    75         format.setFrequency(8000);

    76         format.setChannels(1);

    77         format.setSampleSize(16);

    78         format.setByteOrder(QAudioFormat::LittleEndian);

    79         format.setSampleType(QAudioFormat::SignedInt);

    80         format.setCodec(QLatin1String("audio/pcm"));

    81         break;

    82 

    83     default:

    84         Q_ASSERT_X(false, Q_FUNC_INFO, "Invalid mode");

    85     }

    86 

    87     if (!isFormatSupported(format)) {

    88         if (m_frequencies.size())

    89             format.setFrequency(m_frequencies[0]);

    90         if (m_channels.size())

    91             format.setChannels(m_channels[0]);

    92         if (m_sampleSizes.size())

    93             format.setSampleSize(m_sampleSizes[0]);

    94         if (m_byteOrders.size())

    95             format.setByteOrder(m_byteOrders[0]);

    96         if (m_sampleTypes.size())

    97             format.setSampleType(m_sampleTypes[0]);

    98     }

    99 

   100     return format;

   101 }

   102 

   103 bool QAudioDeviceInfoInternal::isFormatSupported(

   104                                  const QAudioFormat &format) const

   105 {

   106     getSupportedFormats();

   107     const bool supported =

   108             m_codecs.contains(format.codec())

   109         &&  m_frequencies.contains(format.frequency())

   110         &&  m_channels.contains(format.channels())

   111         &&  m_sampleSizes.contains(format.sampleSize())

   112         &&  m_byteOrders.contains(format.byteOrder())

   113         &&  m_sampleTypes.contains(format.sampleType());

   114 

   115     return supported;

   116 }

   117 

   118 QAudioFormat QAudioDeviceInfoInternal::nearestFormat(const QAudioFormat &format) const

   119 {

   120     if (isFormatSupported(format))

   121         return format;

   122     else

   123         return preferredFormat();

   124 }

   125 

   126 QString QAudioDeviceInfoInternal::deviceName() const

   127 {

   128     return m_deviceName;

   129 }

   130 

   131 QStringList QAudioDeviceInfoInternal::codecList()

   132 {

   133     getSupportedFormats();

   134     return m_codecs;

   135 }

   136 

   137 QList<int> QAudioDeviceInfoInternal::frequencyList()

   138 {

   139     getSupportedFormats();

   140     return m_frequencies;

   141 }

   142 

   143 QList<int> QAudioDeviceInfoInternal::channelsList()

   144 {

   145     getSupportedFormats();

   146     return m_channels;

   147 }

   148 

   149 QList<int> QAudioDeviceInfoInternal::sampleSizeList()

   150 {

   151     getSupportedFormats();

   152     return m_sampleSizes;

   153 }

   154 

   155 QList<QAudioFormat::Endian> QAudioDeviceInfoInternal::byteOrderList()

   156 {

   157     getSupportedFormats();

   158     return m_byteOrders;

   159 }

   160 

   161 QList<QAudioFormat::SampleType> QAudioDeviceInfoInternal::sampleTypeList()

   162 {

   163     getSupportedFormats();

   164     return m_sampleTypes;

   165 }

   166 

   167 QByteArray QAudioDeviceInfoInternal::defaultInputDevice()

   168 {

   169     return QByteArray("default");

   170 }

   171 

   172 QByteArray QAudioDeviceInfoInternal::defaultOutputDevice()

   173 {

   174     return QByteArray("default");

   175 }

   176 

   177 QList<QByteArray> QAudioDeviceInfoInternal::availableDevices(QAudio::Mode)

   178 {

   179     QList<QByteArray> result;

   180     result += QByteArray("default");

   181     return result;

   182 }

   183 

   184 void QAudioDeviceInfoInternal::getSupportedFormats() const

   185 {

   186     if (!m_updated) {

   187         QScopedPointer<SymbianAudio::DevSoundCapabilities> caps(

   188             new SymbianAudio::DevSoundCapabilities(*m_devsound, m_mode));

   189 

   190         SymbianAudio::Utils::capabilitiesNativeToQt(*caps,

   191             m_frequencies, m_channels, m_sampleSizes,

   192             m_byteOrders, m_sampleTypes);

   193 

   194         m_codecs.append(QLatin1String("audio/pcm"));

   195 

   196         m_updated = true;

   197     }

   198 }

   199 

   200 QT_END_NAMESPACE