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
|
/****************************************************************************
**
** 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 plugins 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtCore/qstring.h>
#include <QtCore/qdebug.h>
#include <QtGui/QIcon>
#include <QtCore/QDir>
#include "qgstreamerserviceplugin.h"
#ifdef QMEDIA_GSTREAMER_PLAYER
#include "qgstreamerplayerservice.h"
#endif
#ifdef QMEDIA_GSTREAMER_CAPTURE
#include "qgstreamercaptureservice.h"
#endif
#include <QtMultimedia/qmediaserviceprovider.h>
#ifdef QMEDIA_GSTREAMER_CAPTURE
#include <linux/types.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <sys/poll.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <sys/mman.h>
#include <linux/videodev2.h>
#endif
QT_BEGIN_NAMESPACE
QStringList QGstreamerServicePlugin::keys() const
{
return QStringList()
#ifdef QMEDIA_GSTREAMER_PLAYER
<< QLatin1String(Q_MEDIASERVICE_MEDIAPLAYER)
#endif
#ifdef QMEDIA_GSTREAMER_CAPTURE
<< QLatin1String(Q_MEDIASERVICE_AUDIOSOURCE)
<< QLatin1String(Q_MEDIASERVICE_CAMERA)
#endif
;
}
QMediaService* QGstreamerServicePlugin::create(const QString &key)
{
#ifdef QMEDIA_GSTREAMER_PLAYER
if (key == QLatin1String(Q_MEDIASERVICE_MEDIAPLAYER))
return new QGstreamerPlayerService;
#endif
#ifdef QMEDIA_GSTREAMER_CAPTURE
if (key == QLatin1String(Q_MEDIASERVICE_AUDIOSOURCE))
return new QGstreamerCaptureService(key);
if (key == QLatin1String(Q_MEDIASERVICE_CAMERA))
return new QGstreamerCaptureService(key);
#endif
qWarning() << "GStreamer service plugin: unsupported service -" << key;
return 0;
}
void QGstreamerServicePlugin::release(QMediaService *service)
{
delete service;
}
QList<QByteArray> QGstreamerServicePlugin::devices(const QByteArray &service) const
{
#ifdef QMEDIA_GSTREAMER_CAPTURE
if (service == Q_MEDIASERVICE_CAMERA) {
if (m_cameraDevices.isEmpty())
updateDevices();
return m_cameraDevices;
}
#endif
return QList<QByteArray>();
}
QString QGstreamerServicePlugin::deviceDescription(const QByteArray &service, const QByteArray &device)
{
#ifdef QMEDIA_GSTREAMER_CAPTURE
if (service == Q_MEDIASERVICE_CAMERA) {
if (m_cameraDevices.isEmpty())
updateDevices();
for (int i=0; i<m_cameraDevices.count(); i++)
if (m_cameraDevices[i] == device)
return m_cameraDescriptions[i];
}
#endif
return QString();
}
void QGstreamerServicePlugin::updateDevices() const
{
#ifdef QMEDIA_GSTREAMER_CAPTURE
m_cameraDevices.clear();
m_cameraDescriptions.clear();
QDir devDir("/dev");
devDir.setFilter(QDir::System);
QFileInfoList entries = devDir.entryInfoList(QStringList() << "video*");
foreach( const QFileInfo &entryInfo, entries ) {
// qDebug() << "Try" << entryInfo.filePath();
int fd = ::open(entryInfo.filePath().toLatin1().constData(), O_RDWR );
if (fd == -1)
continue;
bool isCamera = false;
v4l2_input input;
memset(&input, 0, sizeof(input));
for (; ::ioctl(fd, VIDIOC_ENUMINPUT, &input) >= 0; ++input.index) {
if(input.type == V4L2_INPUT_TYPE_CAMERA || input.type == 0) {
isCamera = ::ioctl(fd, VIDIOC_S_INPUT, input.index) != 0;
break;
}
}
if (isCamera) {
// find out its driver "name"
QString name;
struct v4l2_capability vcap;
memset(&vcap, 0, sizeof(struct v4l2_capability));
if (ioctl(fd, VIDIOC_QUERYCAP, &vcap) != 0)
name = entryInfo.fileName();
else
name = QString((const char*)vcap.card);
// qDebug() << "found camera: " << name;
m_cameraDevices.append(entryInfo.filePath().toLocal8Bit());
m_cameraDescriptions.append(name);
}
::close(fd);
}
#endif
}
Q_EXPORT_PLUGIN2(gstengine, QGstreamerServicePlugin);
QT_END_NAMESPACE
|
