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/****************************************************************************
**
** 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 "qgstreamercaptureservice_p.h"
#include "qgstreamercapturesession_p.h"
#include "qgstreamerrecordercontrol_p.h"
#include "qgstreamercameracontrol_p.h"
#include <private/qgstreamerbushelper_p.h>
#include "qgstreamercapturemetadatacontrol_p.h"

#if defined(USE_GSTREAMER_CAMERA)
#include "qgstreamervideoinput_p.h"
#endif

#include "qgstreamerimagecapturecontrol_p.h"

#include <private/qgstreamervideorenderer_p.h>
#include <private/qgstreamervideowindow_p.h>

QT_BEGIN_NAMESPACE

QGstreamerCaptureService::QGstreamerCaptureService(QMediaRecorder::CaptureMode mode)
{
    if (mode == QMediaRecorder::AudioOnly) {
        m_captureSession = new QGstreamerCaptureSession(QGstreamerCaptureSession::Audio, this);
    }

#if defined(USE_GSTREAMER_CAMERA)
   else {
        m_captureSession = new QGstreamerCaptureSession(QGstreamerCaptureSession::AudioAndVideo, this);
        m_cameraControl = new QGstreamerCameraControl(m_captureSession);
        m_videoInput = new QGstreamerVideoInput;
        m_captureSession->setVideoInput(m_videoInput);

        m_videoRenderer = new QGstreamerVideoRenderer(this);

        m_videoWindow = new QGstreamerVideoWindow(this);
        // If the GStreamer video sink is not available, don't provide the video window control since
        // it won't work anyway.
        if (!m_videoWindow->videoSink()) {
            delete m_videoWindow;
            m_videoWindow = 0;
        }
    }
#endif
}

QGstreamerCaptureService::~QGstreamerCaptureService()
{
    delete m_videoInput;
}

QObject *QGstreamerCaptureService::requestControl(const char *name)
{
    if (!m_captureSession)
        return 0;

    if (qstrcmp(name,QMediaRecorderControl_iid) == 0)
        return m_captureSession->recorderControl();

    if (qstrcmp(name,QCameraControl_iid) == 0)
        return m_cameraControl;

    if (qstrcmp(name, QCameraImageCaptureControl_iid) == 0)
        return m_captureSession->imageCaptureControl();

    if (!m_videoOutput) {
        if (qstrcmp(name, QVideoRendererControl_iid) == 0) {
            m_videoOutput = m_videoRenderer;
        } else if (qstrcmp(name, QVideoWindowControl_iid) == 0) {
            m_videoOutput = m_videoWindow;
        }

        if (m_videoOutput) {
            m_captureSession->setVideoPreview(m_videoOutput);
            return m_videoOutput;
        }
    }

    return 0;
}

void QGstreamerCaptureService::releaseControl(QObject *control)
{
    if (!control) {
        return;
    } else if (control == m_videoOutput) {
        m_videoOutput = 0;
        m_captureSession->setVideoPreview(0);
    }
}

QT_END_NAMESPACE