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     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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     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 #ifndef QAUDIOENGINE_H

    43 #define QAUDIOENGINE_H

    44 

    45 #include <QtCore/qglobal.h>

    46 #include <QtMultimedia/qaudio.h>

    47 #include <QtMultimedia/qaudioformat.h>

    48 #include <QtMultimedia/qaudiodeviceinfo.h>

    49 

    50 QT_BEGIN_HEADER

    51 

    52 QT_BEGIN_NAMESPACE

    53 

    54 QT_MODULE(Multimedia)

    55 

    56 class Q_MULTIMEDIA_EXPORT QAbstractAudioDeviceInfo : public QObject

    57 {

    58     Q_OBJECT

    59 

    60 public:

    61     virtual QAudioFormat preferredFormat() const = 0;

    62     virtual bool isFormatSupported(const QAudioFormat &format) const = 0;

    63     virtual QAudioFormat nearestFormat(const QAudioFormat &format) const = 0;

    64     virtual QString deviceName() const = 0;

    65     virtual QStringList codecList() = 0;

    66     virtual QList<int> frequencyList() = 0;

    67     virtual QList<int> channelsList() = 0;

    68     virtual QList<int> sampleSizeList() = 0;

    69     virtual QList<QAudioFormat::Endian> byteOrderList() = 0;

    70     virtual QList<QAudioFormat::SampleType> sampleTypeList() = 0;

    71 };

    72 

    73 class Q_MULTIMEDIA_EXPORT QAbstractAudioOutput : public QObject

    74 {

    75     Q_OBJECT

    76 

    77 public:

    78     virtual QIODevice* start(QIODevice* device) = 0;

    79     virtual void stop() = 0;

    80     virtual void reset() = 0;

    81     virtual void suspend() = 0;

    82     virtual void resume() = 0;

    83     virtual int bytesFree() const = 0;

    84     virtual int periodSize() const = 0;

    85     virtual void setBufferSize(int value) = 0;

    86     virtual int bufferSize() const = 0;

    87     virtual void setNotifyInterval(int milliSeconds) = 0;

    88     virtual int notifyInterval() const = 0;

    89     virtual qint64 totalTime() const = 0;

    90     virtual qint64 clock() const = 0;

    91     virtual QAudio::Error error() const = 0;

    92     virtual QAudio::State state() const = 0;

    93     virtual QAudioFormat format() const = 0;

    94 

    95 Q_SIGNALS:

    96     void stateChanged(QAudio::State);

    97     void notify();

    98 };

    99 

   100 class Q_MULTIMEDIA_EXPORT QAbstractAudioInput : public QObject

   101 {

   102     Q_OBJECT

   103 

   104 public:

   105     virtual QIODevice* start(QIODevice* device) = 0;

   106     virtual void stop() = 0;

   107     virtual void reset() = 0;

   108     virtual void suspend()  = 0;

   109     virtual void resume() = 0;

   110     virtual int bytesReady() const = 0;

   111     virtual int periodSize() const = 0;

   112     virtual void setBufferSize(int value) = 0;

   113     virtual int bufferSize() const = 0;

   114     virtual void setNotifyInterval(int milliSeconds) = 0;

   115     virtual int notifyInterval() const = 0;

   116     virtual qint64 totalTime() const = 0;

   117     virtual qint64 clock() const = 0;

   118     virtual QAudio::Error error() const = 0;

   119     virtual QAudio::State state() const = 0;

   120     virtual QAudioFormat format() const = 0;

   121 

   122 Q_SIGNALS:

   123     void stateChanged(QAudio::State);

   124     void notify();

   125 };

   126 

   127 QT_END_NAMESPACE

   128 

   129 QT_END_HEADER

   130 

   131 #endif // QAUDIOENGINE_H