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    41 

    42 #ifndef QAUDIOSYSTEM_H

    43 #define QAUDIOSYSTEM_H

    44 

    45 #include <qmobilityglobal.h>

    46 #include <qtmedianamespace.h>

    47 

    48 #include "qaudio.h"

    49 #include "qaudioformat.h"

    50 #include "qaudiodeviceinfo.h"

    51 

    52 QT_BEGIN_HEADER

    53 

    54 QT_BEGIN_NAMESPACE

    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 QString deviceName() const = 0;

    64     virtual QStringList supportedCodecs() = 0;

    65     virtual QList<int> supportedSampleRates() = 0;

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

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

    68     virtual QList<QAudioFormat::Endian> supportedByteOrders() = 0;

    69     virtual QList<QAudioFormat::SampleType> supportedSampleTypes() = 0;

    70 };

    71 

    72 class Q_MULTIMEDIA_EXPORT QAbstractAudioOutput : public QObject

    73 {

    74     Q_OBJECT

    75 

    76 public:

    77     virtual void start(QIODevice *device) = 0;

    78     virtual QIODevice* start() = 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 processedUSecs() const = 0;

    90     virtual qint64 elapsedUSecs() const = 0;

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

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

    93     virtual void setFormat(const QAudioFormat& fmt) = 0;

    94     virtual QAudioFormat format() const = 0;

    95 

    96 Q_SIGNALS:

    97     void errorChanged(QAudio::Error);

    98     void stateChanged(QAudio::State);

    99     void notify();

   100 };

   101 

   102 class Q_MULTIMEDIA_EXPORT QAbstractAudioInput : public QObject

   103 {

   104     Q_OBJECT

   105 

   106 public:

   107     virtual void start(QIODevice *device) = 0;

   108     virtual QIODevice* start() = 0;

   109     virtual void stop() = 0;

   110     virtual void reset() = 0;

   111     virtual void suspend()  = 0;

   112     virtual void resume() = 0;

   113     virtual int bytesReady() const = 0;

   114     virtual int periodSize() const = 0;

   115     virtual void setBufferSize(int value) = 0;

   116     virtual int bufferSize() const = 0;

   117     virtual void setNotifyInterval(int milliSeconds) = 0;

   118     virtual int notifyInterval() const = 0;

   119     virtual qint64 processedUSecs() const = 0;

   120     virtual qint64 elapsedUSecs() const = 0;

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

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

   123     virtual void setFormat(const QAudioFormat& fmt) = 0;

   124     virtual QAudioFormat format() const = 0;

   125 

   126 Q_SIGNALS:

   127     void errorChanged(QAudio::Error);

   128     void stateChanged(QAudio::State);

   129     void notify();

   130 };

   131 

   132 QT_END_NAMESPACE

   133 

   134 QT_END_HEADER

   135 

   136 #endif // QAUDIOSYSTEM_H