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
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** 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 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 Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** 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-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qgstreameraudiodevice_p.h"
#include <qgstutils_p.h>
#include <private/qplatformmediaintegration_p.h>
QT_BEGIN_NAMESPACE
QGStreamerAudioDeviceInfo::QGStreamerAudioDeviceInfo(GstDevice *d, const QByteArray &device, QAudioDevice::Mode mode)
: QAudioDevicePrivate(device, mode),
gstDevice(d)
{
Q_ASSERT(gstDevice);
gst_object_ref(gstDevice);
auto *n = gst_device_get_display_name(gstDevice);
description = QString::fromUtf8(n);
g_free(n);
QGstCaps caps = gst_device_get_caps(gstDevice);
int size = caps.size();
for (int i = 0; i < size; ++i) {
auto c = caps.at(i);
if (c.name() == "audio/x-raw") {
auto rate = c["rate"].toIntRange();
if (rate) {
minimumSampleRate = rate->min;
maximumSampleRate = rate->max;
}
auto channels = c["channels"].toIntRange();
if (channels) {
minimumChannelCount = channels->min;
maximumChannelCount = channels->max;
}
supportedSampleFormats = c["format"].getSampleFormats();
}
}
preferredFormat.setChannelCount(qBound(minimumChannelCount, 2, maximumChannelCount));
preferredFormat.setSampleRate(qBound(minimumSampleRate, 48000, maximumSampleRate));
QAudioFormat::SampleFormat f = QAudioFormat::Int16;
if (!supportedSampleFormats.contains(f))
f = supportedSampleFormats.value(0, QAudioFormat::Unknown);
preferredFormat.setSampleFormat(f);
}
QGStreamerAudioDeviceInfo::~QGStreamerAudioDeviceInfo()
{
if (gstDevice)
gst_object_unref(gstDevice);
}
QT_END_NAMESPACE
|
