source: trunk/src/multimedia/audio/qaudiodeviceinfo_symbian_p.h@ 769

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//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of other Qt classes.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#ifndef QAUDIODEVICEINFO_SYMBIAN_P_H
#define QAUDIODEVICEINFO_SYMBIAN_P_H

#include <QtCore/QMap>
#include <QtMultimedia/qaudioengine.h>
#include <sounddevice.h>

QT_BEGIN_NAMESPACE

namespace SymbianAudio {
class DevSoundWrapper;
}

class QAudioDeviceInfoInternal
    :   public QAbstractAudioDeviceInfo
{
    Q_OBJECT

public:
    QAudioDeviceInfoInternal(QByteArray device, QAudio::Mode mode);
    ~QAudioDeviceInfoInternal();

    // QAbstractAudioDeviceInfo
    QAudioFormat preferredFormat() const;
    bool isFormatSupported(const QAudioFormat &format) const;
    QAudioFormat nearestFormat(const QAudioFormat &format) const;
    QString deviceName() const;
    QStringList codecList();
    QList<int> frequencyList();
    QList<int> channelsList();
    QList<int> sampleSizeList();
    QList<QAudioFormat::Endian> byteOrderList();
    QList<QAudioFormat::SampleType> sampleTypeList();
    static QByteArray defaultInputDevice();
    static QByteArray defaultOutputDevice();
    static QList<QByteArray> availableDevices(QAudio::Mode);

private slots:
    void devsoundInitializeComplete(int err);

private:
    void getSupportedFormats() const;

private:
    mutable bool m_initializing;
    int m_intializationResult;

    QString m_deviceName;
    QAudio::Mode m_mode;

    struct Capabilities
    {
        QList<int> m_frequencies;
        QList<int> m_channels;
        QList<int> m_sampleSizes;
        QList<QAudioFormat::Endian> m_byteOrders;
        QList<QAudioFormat::SampleType> m_sampleTypes;
    };

    // Mutable to allow lazy initialization when called from const-qualified
    // public functions (isFormatSupported, nearestFormat)
    mutable bool m_updated;
    mutable QMap<QString, Capabilities> m_capabilities;
    mutable Capabilities m_unionCapabilities;
};

QT_END_NAMESPACE

#endif