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Diffstat (limited to 'src/gsttools/qgstreamervideoinputdevicecontrol.cpp')
-rw-r--r-- | src/gsttools/qgstreamervideoinputdevicecontrol.cpp | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/src/gsttools/qgstreamervideoinputdevicecontrol.cpp b/src/gsttools/qgstreamervideoinputdevicecontrol.cpp new file mode 100644 index 000000000..5fe9ca705 --- /dev/null +++ b/src/gsttools/qgstreamervideoinputdevicecontrol.cpp @@ -0,0 +1,155 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qgstreamervideoinputdevicecontrol_p.h" + +#include <QtCore/QDir> +#include <QtCore/QDebug> + +#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> + +QGstreamerVideoInputDeviceControl::QGstreamerVideoInputDeviceControl(QObject *parent) + :QVideoDeviceControl(parent), m_selectedDevice(0) +{ + update(); +} + +QGstreamerVideoInputDeviceControl::~QGstreamerVideoInputDeviceControl() +{ +} + +int QGstreamerVideoInputDeviceControl::deviceCount() const +{ + return m_names.size(); +} + +QString QGstreamerVideoInputDeviceControl::deviceName(int index) const +{ + return m_names[index]; +} + +QString QGstreamerVideoInputDeviceControl::deviceDescription(int index) const +{ + return m_descriptions[index]; +} + +int QGstreamerVideoInputDeviceControl::defaultDevice() const +{ + return 0; +} + +int QGstreamerVideoInputDeviceControl::selectedDevice() const +{ + return m_selectedDevice; +} + + +void QGstreamerVideoInputDeviceControl::setSelectedDevice(int index) +{ + if (index != m_selectedDevice) { + m_selectedDevice = index; + emit selectedDeviceChanged(index); + emit selectedDeviceChanged(deviceName(index)); + } +} + + +void QGstreamerVideoInputDeviceControl::update() +{ + m_names.clear(); + m_descriptions.clear(); + +#ifdef Q_WS_MAEMO_6 + m_names << QLatin1String("primary") << QLatin1String("secondary"); + m_descriptions << tr("Main camera") << tr("Front camera"); +#else + 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_names.append(entryInfo.filePath()); + m_descriptions.append(name); + } + ::close(fd); + } +#endif +} |