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/avfcameraservice.mm
+++ b/src/plugins/avfoundation/camera/avfcameraservice.mm
@@ -0,0 +1,139 @@
+/****************************************************************************
+**
+** 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/qvariant.h>
+#include <QtCore/qdebug.h>
+
+#include "avfcameraservice.h"
+#include "avfcameracontrol.h"
+#include "avfcamerasession.h"
+#include "avfvideodevicecontrol.h"
+#include "avfaudioinputselectorcontrol.h"
+#include "avfcamerametadatacontrol.h"
+#include "avfmediarecordercontrol.h"
+#include "avfimagecapturecontrol.h"
+#include "avfvideorenderercontrol.h"
+#include "avfmediarecordercontrol.h"
+#include "avfimagecapturecontrol.h"
+
+#include <private/qmediaplaylistnavigator_p.h>
+#include <qmediaplaylist.h>
+
+QT_USE_NAMESPACE
+
+AVFCameraService::AVFCameraService(QObject *parent):
+    QMediaService(parent),
+    m_videoOutput(0)
+{
+    m_session = new AVFCameraSession(this);
+    m_cameraControl = new AVFCameraControl(this);
+    m_videoDeviceControl = new AVFVideoDeviceControl(this);
+    m_audioInputSelectorControl = new AVFAudioInputSelectorControl(this);
+
+    m_metaDataControl = new AVFCameraMetaDataControl(this);
+    m_recorderControl = new AVFMediaRecorderControl(this);
+    m_imageCaptureControl = new AVFImageCaptureControl(this);
+}
+
+AVFCameraService::~AVFCameraService()
+{
+    m_cameraControl->setState(QCamera::UnloadedState);
+
+    if (m_videoOutput) {
+        m_session->setVideoOutput(0);
+        delete m_videoOutput;
+        m_videoOutput = 0;
+    }
+
+    //delete controls before session,
+    //so they have a chance to do deinitialization
+    delete m_imageCaptureControl;
+    //delete m_recorderControl;
+    delete m_metaDataControl;
+    delete m_cameraControl;
+
+    delete m_session;
+}
+
+QMediaControl *AVFCameraService::requestControl(const char *name)
+{
+    if (qstrcmp(name, QCameraControl_iid) == 0)
+        return m_cameraControl;
+
+    if (qstrcmp(name, QVideoDeviceSelectorControl_iid) == 0)
+        return m_videoDeviceControl;
+
+    if (qstrcmp(name, QAudioInputSelectorControl_iid) == 0)
+        return m_audioInputSelectorControl;
+
+    //metadata support is not implemented yet
+    //if (qstrcmp(name, QMetaDataWriterControl_iid) == 0)
+    //    return m_metaDataControl;
+
+    if (qstrcmp(name, QMediaRecorderControl_iid) == 0)
+        return m_recorderControl;
+
+    if (qstrcmp(name, QCameraImageCaptureControl_iid) == 0)
+        return m_imageCaptureControl;
+
+    if (!m_videoOutput) {
+        if (qstrcmp(name, QVideoRendererControl_iid) == 0)
+            m_videoOutput = new AVFVideoRendererControl(this);
+
+        if (m_videoOutput) {
+            m_session->setVideoOutput(m_videoOutput);
+            return m_videoOutput;
+        }
+    }
+
+    return 0;
+}
+
+void AVFCameraService::releaseControl(QMediaControl *control)
+{
+    if (m_videoOutput == control) {
+        m_videoOutput = 0;
+        m_session->setVideoOutput(0);
+        delete control;
+    }
+}
+
+#include "moc_avfcameraservice.cpp"