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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 #ifndef QAUDIOINPUTWIN_H

    54 #define QAUDIOINPUTWIN_H

    55 

    56 #include <windows.h>

    57 #include <mmsystem.h>

    58 

    59 #include <QtCore/qfile.h>

    60 #include <QtCore/qdebug.h>

    61 #include <QtCore/qtimer.h>

    62 #include <QtCore/qstring.h>

    63 #include <QtCore/qstringlist.h>

    64 #include <QtCore/qdatetime.h>

    65 #include <QtCore/qmutex.h>

    66 

    67 #include <qaudio.h>

    68 #include <qaudiodeviceinfo.h>

    69 #include <qaudiosystem.h>

    70 

    71 

    72 QT_BEGIN_NAMESPACE

    73 

    74 // For compat with 4.6

    75 #if !defined(QT_WIN_CALLBACK)

    76 #  if defined(Q_CC_MINGW)

    77 #    define QT_WIN_CALLBACK CALLBACK __attribute__ ((force_align_arg_pointer))

    78 #  else

    79 #    define QT_WIN_CALLBACK CALLBACK

    80 #  endif

    81 #endif

    82 

    83 class QAudioInputPrivate : public QAbstractAudioInput

    84 {

    85     Q_OBJECT

    86 public:

    87     QAudioInputPrivate(const QByteArray &device);

    88     ~QAudioInputPrivate();

    89 

    90     qint64 read(char* data, qint64 len);

    91 

    92     void setFormat(const QAudioFormat& fmt);

    93     QAudioFormat format() const;

    94     QIODevice* start();

    95     void start(QIODevice* device);

    96     void stop();

    97     void reset();

    98     void suspend();

    99     void resume();

   100     int bytesReady() const;

   101     int periodSize() const;

   102     void setBufferSize(int value);

   103     int bufferSize() const;

   104     void setNotifyInterval(int milliSeconds);

   105     int notifyInterval() const;

   106     qint64 processedUSecs() const;

   107     qint64 elapsedUSecs() const;

   108     QAudio::Error error() const;

   109     QAudio::State state() const;

   110 

   111     QIODevice* audioSource;

   112     QAudioFormat settings;

   113     QAudio::Error errorState;

   114     QAudio::State deviceState;

   115 

   116 private:

   117     qint32 buffer_size;

   118     qint32 period_size;

   119     qint32 header;

   120     QByteArray m_device;

   121     int bytesAvailable;

   122     int intervalTime;

   123     QTime timeStamp;

   124     qint64 elapsedTimeOffset;

   125     QTime timeStampOpened;

   126     qint64 totalTimeValue;

   127     bool pullMode;

   128     bool resuming;

   129     WAVEFORMATEX wfx;

   130     HWAVEIN hWaveIn;

   131     MMRESULT result;

   132     WAVEHDR* waveBlocks;

   133     volatile bool finished;

   134     volatile int waveFreeBlockCount;

   135     int waveCurrentBlock;

   136 

   137     QMutex mutex;

   138     static void QT_WIN_CALLBACK waveInProc( HWAVEIN hWaveIn, UINT uMsg,

   139             DWORD dwInstance, DWORD dwParam1, DWORD dwParam2 );

   140 

   141     WAVEHDR* allocateBlocks(int size, int count);

   142     void freeBlocks(WAVEHDR* blockArray);

   143     bool open();

   144     void close();

   145 

   146 private slots:

   147     void feedback();

   148     bool deviceReady();

   149 

   150 signals:

   151     void processMore();

   152 };

   153 

   154 class InputPrivate : public QIODevice

   155 {

   156     Q_OBJECT

   157 public:

   158     InputPrivate(QAudioInputPrivate* audio);

   159     ~InputPrivate();

   160 

   161     qint64 readData( char* data, qint64 len);

   162     qint64 writeData(const char* data, qint64 len);

   163 

   164     void trigger();

   165 private:

   166     QAudioInputPrivate *audioDevice;

   167 };

   168 

   169 QT_END_NAMESPACE

   170 

   171 #endif