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
|
/****************************************************************************
**
** Copyright (C) 2015 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qwindowsaudioutils.h"
#ifndef SPEAKER_FRONT_LEFT
#define SPEAKER_FRONT_LEFT 0x00000001
#define SPEAKER_FRONT_RIGHT 0x00000002
#define SPEAKER_FRONT_CENTER 0x00000004
#define SPEAKER_LOW_FREQUENCY 0x00000008
#define SPEAKER_BACK_LEFT 0x00000010
#define SPEAKER_BACK_RIGHT 0x00000020
#define SPEAKER_FRONT_LEFT_OF_CENTER 0x00000040
#define SPEAKER_FRONT_RIGHT_OF_CENTER 0x00000080
#define SPEAKER_BACK_CENTER 0x00000100
#define SPEAKER_SIDE_LEFT 0x00000200
#define SPEAKER_SIDE_RIGHT 0x00000400
#define SPEAKER_TOP_CENTER 0x00000800
#define SPEAKER_TOP_FRONT_LEFT 0x00001000
#define SPEAKER_TOP_FRONT_CENTER 0x00002000
#define SPEAKER_TOP_FRONT_RIGHT 0x00004000
#define SPEAKER_TOP_BACK_LEFT 0x00008000
#define SPEAKER_TOP_BACK_CENTER 0x00010000
#define SPEAKER_TOP_BACK_RIGHT 0x00020000
#define SPEAKER_RESERVED 0x7FFC0000
#define SPEAKER_ALL 0x80000000
#endif
#ifndef WAVE_FORMAT_EXTENSIBLE
#define WAVE_FORMAT_EXTENSIBLE 0xFFFE
#endif
#ifndef WAVE_FORMAT_IEEE_FLOAT
#define WAVE_FORMAT_IEEE_FLOAT 0x0003
#endif
static const GUID _KSDATAFORMAT_SUBTYPE_PCM = {
0x00000001, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
static const GUID _KSDATAFORMAT_SUBTYPE_IEEE_FLOAT = {
0x00000003, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
QT_BEGIN_NAMESPACE
bool qt_convertFormat(const QAudioFormat &format, WAVEFORMATEXTENSIBLE *wfx)
{
if (!wfx
|| !format.isValid()
|| format.codec() != QStringLiteral("audio/pcm")
|| format.sampleRate() <= 0
|| format.channelCount() <= 0
|| format.sampleSize() <= 0
|| format.byteOrder() != QAudioFormat::LittleEndian) {
return false;
}
wfx->Format.nSamplesPerSec = format.sampleRate();
wfx->Format.wBitsPerSample = wfx->Samples.wValidBitsPerSample = format.sampleSize();
wfx->Format.nChannels = format.channelCount();
wfx->Format.nBlockAlign = (wfx->Format.wBitsPerSample / 8) * wfx->Format.nChannels;
wfx->Format.nAvgBytesPerSec = wfx->Format.nBlockAlign * wfx->Format.nSamplesPerSec;
wfx->Format.cbSize = 0;
if (format.sampleType() == QAudioFormat::Float) {
wfx->Format.wFormatTag = WAVE_FORMAT_IEEE_FLOAT;
wfx->SubFormat = _KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
} else {
wfx->Format.wFormatTag = WAVE_FORMAT_PCM;
wfx->SubFormat = _KSDATAFORMAT_SUBTYPE_PCM;
}
if (format.channelCount() > 2) {
wfx->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfx->Format.cbSize = 22;
wfx->dwChannelMask = 0xFFFFFFFF >> (32 - format.channelCount());
}
return true;
}
QT_END_NAMESPACE
|
