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     2 **

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

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     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     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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    38 ** $QT_END_LICENSE$

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    40 ****************************************************************************/

    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 

    66 #include <QtMultimedia/qaudio.h>

    67 #include <QtMultimedia/qaudiodeviceinfo.h>

    68 #include <QtMultimedia/qaudioengine.h>

    69 

    70 

    71 QT_BEGIN_NAMESPACE

    72 

    73 class QAudioInputPrivate : public QAbstractAudioInput

    74 {

    75     Q_OBJECT

    76 public:

    77     QAudioInputPrivate(const QByteArray &device, const QAudioFormat& audioFormat);

    78     ~QAudioInputPrivate();

    79 

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

    81 

    82     QAudioFormat format() const;

    83     QIODevice* start(QIODevice* device = 0);

    84     void stop();

    85     void reset();

    86     void suspend();

    87     void resume();

    88     int bytesReady() const;

    89     int periodSize() const;

    90     void setBufferSize(int value);

    91     int bufferSize() const;

    92     void setNotifyInterval(int milliSeconds);

    93     int notifyInterval() const;

    94     qint64 totalTime() const;

    95     qint64 clock() const;

    96     QAudio::Error error() const;

    97     QAudio::State state() const;

    98 

    99     QIODevice* audioSource;

   100     QAudioFormat settings;

   101     QAudio::Error errorState;

   102     QAudio::State deviceState;

   103 

   104 private:

   105     qint32 buffer_size;

   106     qint32 period_size;

   107     qint32 header;

   108     QByteArray m_device;

   109     int bytesAvailable;

   110     int intervalTime;

   111     QTime timeStamp;

   112     qint64 elapsedTimeOffset;

   113     QTime timeStampOpened;

   114     qint64 totalTimeValue;

   115     bool pullMode;

   116     bool resuming;

   117     WAVEFORMATEX wfx;

   118     HWAVEIN hWaveIn;

   119     MMRESULT result;

   120     WAVEHDR* waveBlocks;

   121     volatile bool finished;

   122     volatile int waveFreeBlockCount;

   123     int waveCurrentBlock;

   124 

   125     static void CALLBACK waveInProc( HWAVEIN hWaveIn, UINT uMsg,

   126             DWORD dwInstance, DWORD dwParam1, DWORD dwParam2 );

   127 

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

   129     void freeBlocks(WAVEHDR* blockArray);

   130     bool open();

   131     void close();

   132 

   133 private slots:

   134     void feedback();

   135     bool deviceReady();

   136 

   137 signals:

   138     void processMore();

   139 };

   140 

   141 class InputPrivate : public QIODevice

   142 {

   143     Q_OBJECT

   144 public:

   145     InputPrivate(QAudioInputPrivate* audio);

   146     ~InputPrivate();

   147 

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

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

   150 

   151     void trigger();

   152 private:

   153     QAudioInputPrivate *audioDevice;

   154 };

   155 

   156 QT_END_NAMESPACE

   157 

   158 #endif