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
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtMediaservices module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMEDIASERVICEPROVIDER_H
#define QMEDIASERVICEPROVIDER_H
#include <QtCore/qobject.h>
#include <QtCore/qshareddata.h>
#include <QtMediaservices/qtmedianamespace.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Multimedia)
class QMediaService;
class QMediaServiceProviderHintPrivate;
class Q_MULTIMEDIA_EXPORT QMediaServiceProviderHint
{
public:
enum Type { Null, ContentType, Device, SupportedFeatures };
enum Feature {
LowLatencyPlayback = 0x01,
RecordingSupport = 0x02,
StreamPlayback = 0x04
};
Q_DECLARE_FLAGS(Features, Feature)
QMediaServiceProviderHint();
QMediaServiceProviderHint(const QString &mimeType, const QStringList& codecs);
QMediaServiceProviderHint(const QByteArray &device);
QMediaServiceProviderHint(Features features);
QMediaServiceProviderHint(const QMediaServiceProviderHint &other);
~QMediaServiceProviderHint();
QMediaServiceProviderHint& operator=(const QMediaServiceProviderHint &other);
bool operator == (const QMediaServiceProviderHint &other) const;
bool operator != (const QMediaServiceProviderHint &other) const;
bool isNull() const;
Type type() const;
QString mimeType() const;
QStringList codecs() const;
QByteArray device() const;
Features features() const;
//to be extended, if necessary
private:
QSharedDataPointer<QMediaServiceProviderHintPrivate> d;
};
class Q_MULTIMEDIA_EXPORT QMediaServiceProvider : public QObject
{
Q_OBJECT
public:
virtual QMediaService* requestService(const QByteArray &type, const QMediaServiceProviderHint &hint = QMediaServiceProviderHint()) = 0;
virtual void releaseService(QMediaService *service) = 0;
virtual QtMediaservices::SupportEstimate hasSupport(const QByteArray &serviceType,
const QString &mimeType,
const QStringList& codecs,
int flags = 0) const;
virtual QStringList supportedMimeTypes(const QByteArray &serviceType, int flags = 0) const;
virtual QList<QByteArray> devices(const QByteArray &serviceType) const;
virtual QString deviceDescription(const QByteArray &serviceType, const QByteArray &device);
static QMediaServiceProvider* defaultServiceProvider();
#ifdef QT_BUILD_INTERNAL
static void setDefaultServiceProvider(QMediaServiceProvider *provider);
#endif
};
/*!
Service with support for media playback
Required Controls: QMediaPlayerControl
Optional Controls: QMediaPlaylistControl, QAudioDeviceControl
Video Output Controls (used by QWideoWidget and QGraphicsVideoItem):
Required: QVideoOutputControl
Optional: QVideoWindowControl, QVideoRendererControl, QVideoWidgetControl
*/
#define Q_MEDIASERVICE_MEDIAPLAYER "com.nokia.qt.mediaplayer"
/*!
Service with support for recording from audio sources
Required Controls: QAudioDeviceControl
Recording Controls (QMediaRecorder):
Required: QMediaRecorderControl
Recommended: QAudioEncoderControl
Optional: QMediaContainerControl
*/
#define Q_MEDIASERVICE_AUDIOSOURCE "com.nokia.qt.audiosource"
/*!
Service with support for camera use.
Required Controls: QCameraControl
Optional Controls: QCameraExposureControl, QCameraFocusControl, QImageProcessingControl
Still Capture Controls: QImageCaptureControl
Recording Controls (QMediaRecorder):
Required: QMediaRecorderControl
Recommended: QAudioEncoderControl, QVideoEncoderControl, QMediaContainerControl
Viewfinder Video Output Controls (used by QWideoWidget and QGraphicsVideoItem):
Required: QVideoOutputControl
Optional: QVideoWindowControl, QVideoRendererControl, QVideoWidgetControl
*/
#define Q_MEDIASERVICE_CAMERA "com.nokia.qt.camera"
/*!
Service with support for radio tuning.
Required Controls: QRadioTunerControl
Recording Controls (Optional, used by QMediaRecorder):
Required: QMediaRecorderControl
Recommended: QAudioEncoderControl
Optional: QMediaContainerControl
*/
#define Q_MEDIASERVICE_RADIO "com.nokia.qt.radio"
QT_END_NAMESPACE
QT_END_HEADER
#endif // QMEDIASERVICEPROVIDER_H
|
