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
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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 1.1, 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qpulsehelpers.h"
QT_BEGIN_NAMESPACE
namespace QPulseAudioInternal
{
pa_sample_spec audioFormatToSampleSpec(const QAudioFormat &format)
{
pa_sample_spec spec;
spec.rate = format.sampleRate();
spec.channels = format.channelCount();
if (format.sampleSize() == 8) {
spec.format = PA_SAMPLE_U8;
} else if (format.sampleSize() == 16) {
switch (format.byteOrder()) {
case QAudioFormat::BigEndian: spec.format = PA_SAMPLE_S16BE; break;
case QAudioFormat::LittleEndian: spec.format = PA_SAMPLE_S16LE; break;
}
} else if (format.sampleSize() == 24) {
switch (format.byteOrder()) {
case QAudioFormat::BigEndian: spec.format = PA_SAMPLE_S24BE; break;
case QAudioFormat::LittleEndian: spec.format = PA_SAMPLE_S24LE; break;
}
} else if (format.sampleSize() == 32) {
switch (format.byteOrder()) {
case QAudioFormat::BigEndian:
format.sampleType() == QAudioFormat::Float ? spec.format = PA_SAMPLE_FLOAT32BE : spec.format = PA_SAMPLE_S32BE;
break;
case QAudioFormat::LittleEndian:
format.sampleType() == QAudioFormat::Float ? spec.format = PA_SAMPLE_FLOAT32LE : spec.format = PA_SAMPLE_S32LE;
break;
}
} else {
spec.format = PA_SAMPLE_INVALID;
}
return spec;
}
#ifdef DEBUG_PULSE
QString stateToQString(pa_stream_state_t state)
{
switch (state)
{
case PA_STREAM_UNCONNECTED: return "Unconnected";
case PA_STREAM_CREATING: return "Creating";
case PA_STREAM_READY: return "Ready";
case PA_STREAM_FAILED: return "Failed";
case PA_STREAM_TERMINATED: return "Terminated";
}
return QString("Unknown state: %0").arg(state);
}
QString sampleFormatToQString(pa_sample_format format)
{
switch (format)
{
case PA_SAMPLE_U8: return "Unsigned 8 Bit PCM.";
case PA_SAMPLE_ALAW: return "8 Bit a-Law ";
case PA_SAMPLE_ULAW: return "8 Bit mu-Law";
case PA_SAMPLE_S16LE: return "Signed 16 Bit PCM, little endian (PC).";
case PA_SAMPLE_S16BE: return "Signed 16 Bit PCM, big endian.";
case PA_SAMPLE_FLOAT32LE: return "32 Bit IEEE floating point, little endian (PC), range -1.0 to 1.0";
case PA_SAMPLE_FLOAT32BE: return "32 Bit IEEE floating point, big endian, range -1.0 to 1.0";
case PA_SAMPLE_S32LE: return "Signed 32 Bit PCM, little endian (PC).";
case PA_SAMPLE_S32BE: return "Signed 32 Bit PCM, big endian.";
case PA_SAMPLE_S24LE: return "Signed 24 Bit PCM packed, little endian (PC).";
case PA_SAMPLE_S24BE: return "Signed 24 Bit PCM packed, big endian.";
case PA_SAMPLE_S24_32LE: return "Signed 24 Bit PCM in LSB of 32 Bit words, little endian (PC).";
case PA_SAMPLE_S24_32BE: return "Signed 24 Bit PCM in LSB of 32 Bit words, big endian.";
case PA_SAMPLE_MAX: return "Upper limit of valid sample types.";
case PA_SAMPLE_INVALID: return "Invalid sample format";
}
return QString("Invalid value: %0").arg(format);
}
QString stateToQString(pa_context_state_t state)
{
switch (state)
{
case PA_CONTEXT_UNCONNECTED: return "Unconnected";
case PA_CONTEXT_CONNECTING: return "Connecting";
case PA_CONTEXT_AUTHORIZING: return "Authorizing";
case PA_CONTEXT_SETTING_NAME: return "Setting Name";
case PA_CONTEXT_READY: return "Ready";
case PA_CONTEXT_FAILED: return "Failed";
case PA_CONTEXT_TERMINATED: return "Terminated";
}
return QString("Unknown state: %0").arg(state);
}
#endif
QAudioFormat sampleSpecToAudioFormat(pa_sample_spec spec)
{
QAudioFormat format;
format.setSampleRate(spec.rate);
format.setChannelCount(spec.channels);
format.setCodec("audio/pcm");
switch (spec.format) {
case PA_SAMPLE_U8:
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::UnSignedInt);
format.setSampleSize(8);
break;
case PA_SAMPLE_ALAW:
// TODO:
break;
case PA_SAMPLE_ULAW:
// TODO:
break;
case PA_SAMPLE_S16LE:
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setSampleSize(16);
break;
case PA_SAMPLE_S16BE:
format.setByteOrder(QAudioFormat::BigEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setSampleSize(16);
break;
case PA_SAMPLE_FLOAT32LE:
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::Float);
format.setSampleSize(32);
break;
case PA_SAMPLE_FLOAT32BE:
format.setByteOrder(QAudioFormat::BigEndian);
format.setSampleType(QAudioFormat::Float);
format.setSampleSize(32);
break;
case PA_SAMPLE_S32LE:
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setSampleSize(32);
break;
case PA_SAMPLE_S32BE:
format.setByteOrder(QAudioFormat::BigEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setSampleSize(32);
break;
case PA_SAMPLE_S24LE:
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setSampleSize(24);
break;
case PA_SAMPLE_S24BE:
format.setByteOrder(QAudioFormat::BigEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setSampleSize(24);
break;
case PA_SAMPLE_S24_32LE:
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setSampleSize(24);
break;
case PA_SAMPLE_S24_32BE:
format.setByteOrder(QAudioFormat::BigEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setSampleSize(24);
break;
case PA_SAMPLE_MAX:
case PA_SAMPLE_INVALID:
default:
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::Unknown);
format.setSampleSize(0);
}
return format;
}
}
QT_END_NAMESPACE
|
