AVF: Introduce QCameraCaptureDestinationControl_iid

Can be used like:
QCameraImageCapture->setCaptureDestination(
    QCameraImageCapture::CaptureToBuffer | QCameraImageCapture::CaptureToFile);

Both CaptureToBuffer and CaptureToFile are supported.

If CaptureToBuffer is requested, then it sends imageAvailble signal
If CaptureToFile is requested, it sends imageSaved

imageCaptured is sent only if there is the video frame available.
(e.g. when abstract video surface is used as viewfinder)

Pick-to: 5.15
Fixes: QTBUG-85470
Change-Id: If22281e4d0eacfb0d38f8b1c8b676191817f592e
Reviewed-by: Ihor Dutchak <ihor.youw@gmail.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>

1 files changed, 62 insertions, 0 deletions

diff --git a/src/plugins/avfoundation/camera/avfcapturedestinationcontrol.mm b/src/plugins/avfoundation/camera/avfcapturedestinationcontrol.mm
new file mode 100644
index 000000000..d0700d69d
--- /dev/null
+++ b/src/plugins/avfoundation/camera/avfcapturedestinationcontrol.mm
@@ -0,0 +1,62 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "avfcapturedestinationcontrol.h"
+
+QT_BEGIN_NAMESPACE
+
+bool AVFCaptureDestinationControl::isCaptureDestinationSupported(QCameraImageCapture::CaptureDestinations destination) const
+{
+    return destination & (QCameraImageCapture::CaptureToFile | QCameraImageCapture::CaptureToBuffer);
+}
+
+QCameraImageCapture::CaptureDestinations AVFCaptureDestinationControl::captureDestination() const
+{
+    return m_destination;
+}
+
+void AVFCaptureDestinationControl::setCaptureDestination(QCameraImageCapture::CaptureDestinations destination)
+{
+    if (m_destination != destination) {
+        m_destination = destination;
+        Q_EMIT captureDestinationChanged(m_destination);
+    }
+}
+
+QT_END_NAMESPACE