diff options
Diffstat (limited to 'src/plugins/gstreamer/camerabin/camerabinserviceplugin.cpp')
| -rw-r--r-- | src/plugins/gstreamer/camerabin/camerabinserviceplugin.cpp | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/src/plugins/gstreamer/camerabin/camerabinserviceplugin.cpp b/src/plugins/gstreamer/camerabin/camerabinserviceplugin.cpp new file mode 100644 index 000000000..7e8aebb9a --- /dev/null +++ b/src/plugins/gstreamer/camerabin/camerabinserviceplugin.cpp @@ -0,0 +1,172 @@ +/**************************************************************************** +** +** 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 <QtCore/qstring.h> +#include <QtCore/qdebug.h> +#include <QtCore/QDir> +#include <QtCore/QDebug> + +#include "camerabinserviceplugin.h" + + +#include "camerabinservice.h" +#include <private/qgstutils_p.h> + +#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> +#include <gst/gst.h> + +QT_BEGIN_NAMESPACE + +QMediaService* CameraBinServicePlugin::create(const QString &key) +{ + QGstUtils::initializeGst(); + + if (key == QLatin1String(Q_MEDIASERVICE_CAMERA)) + return new CameraBinService(key); + + qWarning() << "Gstreamer camerabin service plugin: unsupported key:" << key; + return 0; +} + +void CameraBinServicePlugin::release(QMediaService *service) +{ + delete service; +} + +QMediaServiceProviderHint::Features CameraBinServicePlugin::supportedFeatures( + const QByteArray &service) const +{ + if (service == Q_MEDIASERVICE_CAMERA) + return QMediaServiceProviderHint::VideoSurface; + + return QMediaServiceProviderHint::Features(); +} + +QList<QByteArray> CameraBinServicePlugin::devices(const QByteArray &service) const +{ + if (service == Q_MEDIASERVICE_CAMERA) { + if (m_cameraDevices.isEmpty()) + updateDevices(); + + return m_cameraDevices; + } + + return QList<QByteArray>(); +} + +QString CameraBinServicePlugin::deviceDescription(const QByteArray &service, const QByteArray &device) +{ + 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]; + } + + return QString(); +} + +QVariant CameraBinServicePlugin::deviceProperty(const QByteArray &service, const QByteArray &device, const QByteArray &property) +{ + Q_UNUSED(service); + Q_UNUSED(device); + Q_UNUSED(property); + return QVariant(); +} + +void CameraBinServicePlugin::updateDevices() const +{ + m_cameraDevices.clear(); + m_cameraDescriptions.clear(); + + QDir devDir("/dev"); + devDir.setFilter(QDir::System); + + QFileInfoList entries = devDir.entryInfoList(QStringList() << "video*"); + + foreach (const QFileInfo &entryInfo, entries) { + 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); + } +} + +QT_END_NAMESPACE |