blob: 99fac10ebe1d77d68dc97f0d10ae53b2eee7ee22 (
plain)
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
153
154
155
156
157
158
159
160
161
162
163
164
|
/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QAUDIOOUTPUTPULSE_H
#define QAUDIOOUTPUTPULSE_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/qfile.h>
#include <QtCore/qtimer.h>
#include <QtCore/qstring.h>
#include <QtCore/qstringlist.h>
#include <QtCore/qdatetime.h>
#include "qaudio.h"
#include "qaudiodeviceinfo.h"
#include "qaudiosystem.h"
#include <pulse/pulseaudio.h>
QT_BEGIN_NAMESPACE
class QPulseAudioOutput : public QAbstractAudioOutput
{
friend class OutputPrivate;
Q_OBJECT
public:
QPulseAudioOutput(const QByteArray &device);
~QPulseAudioOutput();
void start(QIODevice *device);
QIODevice *start();
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 processedUSecs() const;
qint64 elapsedUSecs() const;
QAudio::Error error() const;
QAudio::State state() const;
void setFormat(const QAudioFormat &format);
QAudioFormat format() const;
void setVolume(qreal volume);
qreal volume() const;
void setCategory(const QString &category);
QString category() const;
public:
void streamUnderflowCallback();
private:
bool open();
void close();
qint64 write(const char *data, qint64 len);
private Q_SLOTS:
void userFeed();
private:
QByteArray m_device;
QByteArray m_streamName;
QAudioFormat m_format;
QAudio::Error m_errorState;
QAudio::State m_deviceState;
bool m_pullMode;
bool m_opened;
QIODevice *m_audioSource;
QTimer m_periodTimer;
int m_periodTime;
pa_stream *m_stream;
int m_notifyInterval;
int m_periodSize;
int m_bufferSize;
int m_maxBufferSize;
QTime m_clockStamp;
qint64 m_totalTimeValue;
QTimer *m_tickTimer;
char *m_audioBuffer;
QTime m_timeStamp;
qint64 m_elapsedTimeOffset;
bool m_resuming;
QString m_category;
qreal m_volume;
pa_cvolume m_chVolume;
pa_sample_spec m_spec;
};
class OutputPrivate : public QIODevice
{
friend class QPulseAudioOutput;
Q_OBJECT
public:
OutputPrivate(QPulseAudioOutput *audio);
virtual ~OutputPrivate() {}
protected:
qint64 readData(char *data, qint64 len);
qint64 writeData(const char *data, qint64 len);
private:
QPulseAudioOutput *m_audioDevice;
};
QT_END_NAMESPACE
#endif
|
