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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef MOCKAUDIODECODERCONTROL_H
#define MOCKAUDIODECODERCONTROL_H
#include "qmediacontrol.h"
#include "qaudiodecodercontrol.h"
#include <QtCore/qpair.h>
#include "qaudiobuffer.h"
#include <QTimer>
#include <QIODevice>
#define MOCK_DECODER_MAX_BUFFERS 10
QT_BEGIN_NAMESPACE
class MockAudioDecoderControl : public QAudioDecoderControl
{
Q_OBJECT
public:
MockAudioDecoderControl(QObject *parent = 0)
: QAudioDecoderControl(parent)
, mState(QAudioDecoder::StoppedState)
, mDevice(0)
, mPosition(-1)
, mSerial(0)
{
mFormat.setChannelCount(1);
mFormat.setSampleSize(8);
mFormat.setSampleRate(1000);
mFormat.setCodec("audio/x-raw");
mFormat.setSampleType(QAudioFormat::UnSignedInt);
}
QAudioDecoder::State state() const
{
return mState;
}
QString sourceFilename() const
{
return mSource;
}
QAudioFormat audioFormat() const
{
return mFormat;
}
void setAudioFormat(const QAudioFormat &format)
{
if (mFormat != format) {
mFormat = format;
emit formatChanged(mFormat);
}
}
void setSourceFilename(const QString &fileName)
{
mSource = fileName;
mDevice = 0;
stop();
}
QIODevice* sourceDevice() const
{
return mDevice;
}
void setSourceDevice(QIODevice *device)
{
mDevice = device;
mSource.clear();
stop();
}
// When decoding we decode to first buffer, then second buffer
// we then stop until the first is read again and so on, for
// 5 buffers
void start()
{
if (mState == QAudioDecoder::StoppedState) {
if (!mSource.isEmpty()) {
mState = QAudioDecoder::DecodingState;
emit stateChanged(mState);
emit durationChanged(duration());
QTimer::singleShot(50, this, SLOT(pretendDecode()));
} else {
emit error(QAudioDecoder::ResourceError, "No source set");
}
}
}
void stop()
{
if (mState != QAudioDecoder::StoppedState) {
mState = QAudioDecoder::StoppedState;
mSerial = 0;
mPosition = 0;
mBuffers.clear();
emit stateChanged(mState);
emit bufferAvailableChanged(false);
}
}
QAudioBuffer read()
{
QAudioBuffer a;
if (mBuffers.length() > 0) {
a = mBuffers.takeFirst();
mPosition = a.startTime() / 1000;
emit positionChanged(mPosition);
if (mBuffers.isEmpty())
emit bufferAvailableChanged(false);
if (mBuffers.isEmpty() && mSerial >= MOCK_DECODER_MAX_BUFFERS) {
mState = QAudioDecoder::StoppedState;
emit finished();
emit stateChanged(mState);
} else
QTimer::singleShot(50, this, SLOT(pretendDecode()));
}
return a;
}
bool bufferAvailable() const
{
return mBuffers.length() > 0;
}
qint64 position() const
{
return mPosition;
}
qint64 duration() const
{
return (sizeof(mSerial) * MOCK_DECODER_MAX_BUFFERS * qint64(1000)) / (mFormat.sampleRate() * mFormat.channelCount());
}
private slots:
void pretendDecode()
{
// Check if we've reached end of stream
if (mSerial >= MOCK_DECODER_MAX_BUFFERS)
return;
// We just keep the length of mBuffers to 3 or less.
if (mBuffers.length() < 3) {
QByteArray b(sizeof(mSerial), 0);
memcpy(b.data(), &mSerial, sizeof(mSerial));
qint64 position = (sizeof(mSerial) * mSerial * qint64(1000000)) / (mFormat.sampleRate() * mFormat.channelCount());
mSerial++;
mBuffers.push_back(QAudioBuffer(b, mFormat, position));
emit bufferReady();
if (mBuffers.count() == 1)
emit bufferAvailableChanged(true);
}
}
public:
QAudioDecoder::State mState;
QString mSource;
QIODevice *mDevice;
QAudioFormat mFormat;
qint64 mPosition;
int mSerial;
QList<QAudioBuffer> mBuffers;
};
QT_END_NAMESPACE
#endif // QAUDIODECODERCONTROL_H
|
