Initial implementation of Mac camera backend

Based on AVFoundation framework Change-Id: If4cfd105a592f50b42606624548b9ffc870e3e47 Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>
2012-08-17 13:44:14 +10:00
parent 09a7fda971
commit 37b872da9e
27 changed files with 3009 additions and 0 deletions
--- a/src/plugins/avfoundation/camera/avfcameraserviceplugin.mm
+++ b/src/plugins/avfoundation/camera/avfcameraserviceplugin.mm
@@ -0,0 +1,112 @@
+/****************************************************************************
+**
+** 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 "avfcameraserviceplugin.h"
+#include "avfcameraservice.h"
+
+#include <qmediaserviceproviderplugin.h>
+
+#import <AVFoundation/AVFoundation.h>
+
+
+QT_BEGIN_NAMESPACE
+
+
+AVFServicePlugin::AVFServicePlugin()
+{
+}
+
+QMediaService* AVFServicePlugin::create(QString const& key)
+{
+    if (key == QLatin1String(Q_MEDIASERVICE_CAMERA))
+        return new AVFCameraService;
+    else
+        qWarning() << "unsupported key:" << key;
+
+    return 0;
+}
+
+void AVFServicePlugin::release(QMediaService *service)
+{
+    delete service;
+}
+
+QList<QByteArray> AVFServicePlugin::devices(const QByteArray &service) const
+{
+    if (service == Q_MEDIASERVICE_CAMERA) {
+        if (m_cameraDevices.isEmpty())
+            updateDevices();
+
+        return m_cameraDevices;
+    }
+
+    return QList<QByteArray>();
+}
+
+QString AVFServicePlugin::deviceDescription(const QByteArray &service, const QByteArray &device)
+{
+    if (service == Q_MEDIASERVICE_CAMERA) {
+        if (m_cameraDevices.isEmpty())
+            updateDevices();
+
+        return m_cameraDescriptions.value(device);
+    }
+
+    return QString();
+}
+
+void AVFServicePlugin::updateDevices() const
+{
+    m_cameraDevices.clear();
+    m_cameraDescriptions.clear();
+
+    NSArray *videoDevices = [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo];
+    for (AVCaptureDevice *device in videoDevices) {
+        QByteArray deviceId([[device uniqueID] UTF8String]);
+        m_cameraDevices << deviceId;
+        m_cameraDescriptions.insert(deviceId, QString::fromUtf8([[device localizedName] UTF8String]));
+    }
+}
+
+QT_END_NAMESPACE