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    41 

    42 //

    43 //  W A R N I N G

    44 //  -------------

    45 //

    46 // This file is not part of the Qt API.  It exists for the convenience

    47 // of other Qt classes.  This header file may change from version to

    48 // version without notice, or even be removed.

    49 //

    50 // We mean it.

    51 //

    52 

    53 

    54 #ifndef QAUDIOINPUT_MAC_P_H

    55 #define QAUDIOINPUT_MAC_P_H

    56 

    57 #include <CoreServices/CoreServices.h>

    58 #include <CoreAudio/CoreAudio.h>

    59 #include <AudioUnit/AudioUnit.h>

    60 #include <AudioToolbox/AudioToolbox.h>

    61 

    62 #include <QtCore/qobject.h>

    63 #include <QtCore/qmutex.h>

    64 #include <QtCore/qwaitcondition.h>

    65 #include <QtCore/qatomic.h>

    66 

    67 #include <qaudio.h>

    68 #include <qaudioformat.h>

    69 #include <qaudiosystem.h>

    70 

    71 QT_BEGIN_HEADER

    72 

    73 QT_BEGIN_NAMESPACE

    74 

    75 class QTimer;

    76 class QIODevice;

    77 class QAbstractAudioDeviceInfo;

    78 

    79 namespace QtMultimediaInternal

    80 {

    81 class QAudioInputBuffer;

    82 }

    83 

    84 class QAudioInputPrivate : public QAbstractAudioInput

    85 {

    86     Q_OBJECT

    87 

    88 public:

    89     bool            isOpen;

    90     int             periodSizeBytes;

    91     int             internalBufferSize;

    92     qint64          totalFrames;

    93     QAudioFormat    audioFormat;

    94     QIODevice*      audioIO;

    95     AudioUnit       audioUnit;

    96     AudioDeviceID   audioDeviceId;

    97     Float64         clockFrequency;

    98     UInt64          startTime;

    99     QAudio::Error   errorCode;

   100     QAudio::State   stateCode;

   101     QtMultimediaInternal::QAudioInputBuffer*   audioBuffer;

   102     QMutex          mutex;

   103     QWaitCondition  threadFinished;

   104     QAtomicInt      audioThreadState;

   105     QTimer*         intervalTimer;

   106     AudioStreamBasicDescription streamFormat;

   107     AudioStreamBasicDescription deviceFormat;

   108     QAbstractAudioDeviceInfo *audioDeviceInfo;

   109 

   110     QAudioInputPrivate(const QByteArray& device);

   111     ~QAudioInputPrivate();

   112 

   113     bool open();

   114     void close();

   115 

   116     QAudioFormat format() const;

   117     void setFormat(const QAudioFormat& fmt);

   118 

   119     QIODevice* start();

   120     void start(QIODevice* device);

   121     void stop();

   122     void reset();

   123     void suspend();

   124     void resume();

   125     void idle();

   126 

   127     int bytesReady() const;

   128     int periodSize() const;

   129 

   130     void setBufferSize(int value);

   131     int bufferSize() const;

   132 

   133     void setNotifyInterval(int milliSeconds);

   134     int notifyInterval() const;

   135 

   136     qint64 processedUSecs() const;

   137     qint64 elapsedUSecs() const;

   138 

   139     QAudio::Error error() const;

   140     QAudio::State state() const;

   141 

   142     void audioThreadStart();

   143     void audioThreadStop();

   144 

   145     void audioDeviceStop();

   146     void audioDeviceFull();

   147     void audioDeviceError();

   148 

   149     void startTimers();

   150     void stopTimers();

   151 

   152 private slots:

   153     void deviceStopped();

   154 

   155 private:

   156     enum { Running, Stopped };

   157 

   158     // Input callback

   159     static OSStatus inputCallback(void* inRefCon,

   160                                     AudioUnitRenderActionFlags* ioActionFlags,

   161                                     const AudioTimeStamp* inTimeStamp,

   162                                     UInt32 inBusNumber,

   163                                     UInt32 inNumberFrames,

   164                                     AudioBufferList* ioData);

   165 };

   166 

   167 QT_END_NAMESPACE

   168 

   169 QT_END_HEADER

   170 

   171 #endif // QAUDIOINPUT_MAC_P_H