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    41 

    42 

    43 #ifndef QAUDIOOUTPUT_H

    44 #define QAUDIOOUTPUT_H

    45 

    46 #include <QtCore/qiodevice.h>

    47 

    48 #include <qmobilityglobal.h>

    49 #include <qtmedianamespace.h>

    50 

    51 #include <qaudio.h>

    52 #include <qaudioformat.h>

    53 #include <qaudiodeviceinfo.h>

    54 

    55 

    56 QT_BEGIN_HEADER

    57 

    58 QT_BEGIN_NAMESPACE

    59 

    60 

    61 class QAbstractAudioOutput;

    62 

    63 class Q_MULTIMEDIA_EXPORT QAudioOutput : public QObject

    64 {

    65     Q_OBJECT

    66 

    67 public:

    68     explicit QAudioOutput(const QAudioFormat &format = QAudioFormat(), QObject *parent = 0);

    69     explicit QAudioOutput(const QAudioDeviceInfo &audioDeviceInfo, const QAudioFormat &format = QAudioFormat(), QObject *parent = 0);

    70     ~QAudioOutput();

    71 

    72     QAudioFormat format() const;

    73 

    74     void start(QIODevice *device);

    75     QIODevice* start();

    76 

    77     void stop();

    78     void reset();

    79     void suspend();

    80     void resume();

    81 

    82     void setBufferSize(int bytes);

    83     int bufferSize() const;

    84 

    85     int bytesFree() const;

    86     int periodSize() const;

    87 

    88     void setNotifyInterval(int milliSeconds);

    89     int notifyInterval() const;

    90 

    91     qint64 processedUSecs() const;

    92     qint64 elapsedUSecs() const;

    93 

    94     QAudio::Error error() const;

    95     QAudio::State state() const;

    96 

    97 Q_SIGNALS:

    98     void stateChanged(QAudio::State);

    99     void notify();

   100 

   101 private:

   102     Q_DISABLE_COPY(QAudioOutput)

   103 

   104     QAbstractAudioOutput* d;

   105 };

   106 

   107 QT_END_NAMESPACE

   108 

   109 QT_END_HEADER

   110 

   111 #endif // QAUDIOOUTPUT_H