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    41 

    42 #ifndef SYMBIANAUDIODEVICEINFO_H

    43 #define SYMBIANAUDIODEVICEINFO_H

    44 

    45 #include <QtMultimedia/qaudioengine.h>

    46 #include <sounddevice.h>

    47 

    48 QT_BEGIN_NAMESPACE

    49 

    50 class SymbianAudioDeviceInfo

    51     :   public QAbstractAudioDeviceInfo

    52 {

    53     Q_OBJECT

    54 

    55 public:

    56     SymbianAudioDeviceInfo(QByteArray device, QAudio::Mode mode);

    57     ~SymbianAudioDeviceInfo();

    58 

    59     // QAbstractAudioDeviceInfo

    60     QAudioFormat preferredFormat() const;

    61     bool isFormatSupported(const QAudioFormat &format) const;

    62     QAudioFormat nearestFormat(const QAudioFormat &format) const;

    63     QString deviceName() const;

    64     QStringList codecList();

    65     QList<int> frequencyList();

    66     QList<int> channelsList();

    67     QList<int> sampleSizeList();

    68     QList<QAudioFormat::Endian> byteOrderList();

    69     QList<QAudioFormat::SampleType> sampleTypeList();

    70     QList<QByteArray> deviceList(QAudio::Mode);

    71 

    72 private:

    73     void getSupportedFormats() const;

    74 

    75 private:

    76     QScopedPointer<CMMFDevSound> m_devsound;

    77 

    78     QString m_deviceName;

    79     QAudio::Mode m_mode;

    80 

    81     // Mutable to allow lazy initialization when called from const-qualified

    82     // public functions (isFormatSupported, nearestFormat)

    83     mutable bool m_updated;

    84     mutable QStringList m_codecs;

    85     mutable QList<int> m_frequencies;

    86     mutable QList<int> m_channels;

    87     mutable QList<int> m_sampleSizes;

    88     mutable QList<QAudioFormat::Endian> m_byteOrders;

    89     mutable QList<QAudioFormat::SampleType> m_sampleTypes;

    90 };

    91 

    92 QT_END_NAMESPACE

    93 

    94 #endif