1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtMultimedia module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#ifndef QAUDIOOUTPUTWIN_H
#define QAUDIOOUTPUTWIN_H
#include <windows.h>
#include <mmsystem.h>
#include <QtCore/qdebug.h>
#include <QtCore/qtimer.h>
#include <QtCore/qstring.h>
#include <QtCore/qstringlist.h>
#include <QtCore/qdatetime.h>
#include <QtMultimedia/qaudio.h>
#include <QtMultimedia/qaudiodeviceinfo.h>
#include <QtMultimedia/qaudioengine.h>
class QAudioOutputPrivate : public QAbstractAudioOutput
{
Q_OBJECT
public:
QAudioOutputPrivate(const QByteArray &device, const QAudioFormat& audioFormat);
~QAudioOutputPrivate();
qint64 write( const char *data, qint64 len );
QAudioFormat format() const;
QIODevice* start(QIODevice* device = 0);
void stop();
void reset();
void suspend();
void resume();
int bytesFree() const;
int periodSize() const;
void setBufferSize(int value);
int bufferSize() const;
void setNotifyInterval(int milliSeconds);
int notifyInterval() const;
qint64 totalTime() const;
qint64 clock() const;
QAudio::Error error() const;
QAudio::State state() const;
QIODevice* audioSource;
QAudioFormat settings;
QAudio::Error errorState;
QAudio::State deviceState;
private slots:
void feedback();
bool deviceReady();
signals:
void stateChanged(QAudio::State);
void notify();
private:
QByteArray m_device;
bool resuming;
int bytesAvailable;
QTime timeStamp;
QTime timeStampOpened;
qint32 buffer_size;
qint32 period_size;
qint64 totalTimeValue;
bool pullMode;
int intervalTime;
static void CALLBACK waveOutProc( HWAVEOUT hWaveOut, UINT uMsg,
DWORD dwInstance, DWORD dwParam1, DWORD dwParam2 );
WAVEHDR* allocateBlocks(int size, int count);
void freeBlocks(WAVEHDR* blockArray);
bool open();
void close();
WAVEFORMATEX wfx;
HWAVEOUT hWaveOut;
MMRESULT result;
WAVEHDR header;
WAVEHDR* waveBlocks;
volatile int waveFreeBlockCount;
int waveCurrentBlock;
char* audioBuffer;
};
class OutputPrivate : public QIODevice
{
Q_OBJECT
public:
OutputPrivate(QAudioOutputPrivate* audio);
~OutputPrivate();
qint64 readData( char* data, qint64 len);
qint64 writeData(const char* data, qint64 len);
private:
QAudioOutputPrivate *audioDevice;
};
#endif
|
