1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** GNU Lesser General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU Lesser
19** General Public License version 3 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPL3 included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 3 requirements
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
24**
25** GNU General Public License Usage
26** Alternatively, this file may be used under the terms of the GNU
27** General Public License version 2.0 or (at your option) the GNU General
28** Public license version 3 or any later version approved by the KDE Free
29** Qt Foundation. The licenses are as published by the Free Software
30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
31** included in the packaging of this file. Please review the following
32** information to ensure the GNU General Public License requirements will
33** be met: https://www.gnu.org/licenses/gpl-2.0.html and
34** https://www.gnu.org/licenses/gpl-3.0.html.
35**
36** $QT_END_LICENSE$
37**
38****************************************************************************/
39
40#ifndef CAMERABINAUDIOENCODE_H
41#define CAMERABINAUDIOENCODE_H
42
43#include <QtMultimedia/private/qtmultimediaglobal_p.h>
44#include <qaudioencodersettingscontrol.h>
45
46#include <QtCore/qstringlist.h>
47#include <QtCore/qmap.h>
48#include <QtCore/qset.h>
49
50#include <gst/gst.h>
51#include <gst/pbutils/pbutils.h>
52
53#if QT_CONFIG(gstreamer_encodingprofiles)
54#include <gst/pbutils/encoding-profile.h>
55#include <private/qgstcodecsinfo_p.h>
56#endif
57
58#include <qaudioformat.h>
59
60QT_BEGIN_NAMESPACE
61class CameraBinSession;
62
63class CameraBinAudioEncoder : public QAudioEncoderSettingsControl
64{
65 Q_OBJECT
66public:
67 CameraBinAudioEncoder(QObject *parent);
68 virtual ~CameraBinAudioEncoder();
69
70 QStringList supportedAudioCodecs() const override;
71 QString codecDescription(const QString &codecName) const override;
72
73 QStringList supportedEncodingOptions(const QString &codec) const;
74 QVariant encodingOption(const QString &codec, const QString &name) const;
75 void setEncodingOption(const QString &codec, const QString &name, const QVariant &value);
76
77 QList<int> supportedSampleRates(const QAudioEncoderSettings &settings = QAudioEncoderSettings(),
78 bool *isContinuous = 0) const override;
79 QList<int> supportedChannelCounts(const QAudioEncoderSettings &settings = QAudioEncoderSettings()) const;
80 QList<int> supportedSampleSizes(const QAudioEncoderSettings &settings = QAudioEncoderSettings()) const;
81
82 QAudioEncoderSettings audioSettings() const override;
83 void setAudioSettings(const QAudioEncoderSettings &) override;
84
85 QAudioEncoderSettings actualAudioSettings() const;
86 void setActualAudioSettings(const QAudioEncoderSettings&);
87 void resetActualSettings();
88
89#if QT_CONFIG(gstreamer_encodingprofiles)
90 GstEncodingProfile *createProfile();
91#endif
92
93 void applySettings(GstElement *element);
94
95Q_SIGNALS:
96 void settingsChanged();
97
98private:
99#if QT_CONFIG(gstreamer_encodingprofiles)
100 QGstCodecsInfo m_codecs;
101#endif
102
103 QAudioEncoderSettings m_actualAudioSettings;
104 QAudioEncoderSettings m_audioSettings;
105};
106
107QT_END_NAMESPACE
108
109#endif
110

source code of qtmultimedia/src/plugins/gstreamer/camerabin/camerabinaudioencoder.h