Initial copy of QtMultimediaKit.

Comes from original repo, with SHA1:
2c82d5611655e5967f5c5095af50c0991c4378b2

src/plugins/gstreamer/mediacapture/qgstreamercaptureservice.cpp

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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qgstreamercaptureservice.h"
+#include "qgstreamercapturesession.h"
+#include "qgstreamerrecordercontrol.h"
+#include "qgstreamermediacontainercontrol.h"
+#include "qgstreameraudioencode.h"
+#include "qgstreamervideoencode.h"
+#include "qgstreamerimageencode.h"
+#include "qgstreamerbushelper.h"
+#include "qgstreamercameracontrol.h"
+#include "qgstreamerv4l2input.h"
+#include "qgstreamercapturemetadatacontrol.h"
+
+#include "qgstreameraudioinputendpointselector.h"
+#include "qgstreamervideoinputdevicecontrol.h"
+#include "qgstreamerimagecapturecontrol.h"
+
+#include "qgstreamervideooverlay.h"
+#include "qgstreamervideorenderer.h"
+
+#include "qgstreamervideowidget.h"
+
+#include <qmediaserviceprovider.h>
+
+
+QGstreamerCaptureService::QGstreamerCaptureService(const QString &service, QObject *parent):
+    QMediaService(parent)
+{
+    m_captureSession = 0;
+    m_cameraControl = 0;
+    m_metaDataControl = 0;
+
+    m_videoInput = 0;
+    m_audioInputEndpointSelector = 0;
+    m_videoInputDevice = 0;
+
+    m_videoOutput = 0;
+    m_videoRenderer = 0;
+    m_videoWindow = 0;
+    m_videoWidgetControl = 0;
+    m_imageCaptureControl = 0;
+
+    if (service == Q_MEDIASERVICE_AUDIOSOURCE) {
+        m_captureSession = new QGstreamerCaptureSession(QGstreamerCaptureSession::Audio, this);
+    }
+
+   if (service == Q_MEDIASERVICE_CAMERA) {
+        m_captureSession = new QGstreamerCaptureSession(QGstreamerCaptureSession::AudioAndVideo, this);
+        m_cameraControl = new QGstreamerCameraControl(m_captureSession);
+        m_videoInput = new QGstreamerV4L2Input(this);
+        m_captureSession->setVideoInput(m_videoInput);
+        m_videoInputDevice = new QGstreamerVideoInputDeviceControl(this);
+
+        connect(m_videoInputDevice, SIGNAL(selectedDeviceChanged(QString)),
+                m_videoInput, SLOT(setDevice(QString)));
+
+        if (m_videoInputDevice->deviceCount())
+            m_videoInput->setDevice(m_videoInputDevice->deviceName(m_videoInputDevice->selectedDevice()));
+
+        m_videoRenderer = new QGstreamerVideoRenderer(this);
+
+#if defined(Q_WS_X11) && !defined(QT_NO_XVIDEO)
+        m_videoWindow = new QGstreamerVideoOverlay(this);
+        m_videoWidgetControl = new QGstreamerVideoWidgetControl(this);
+#endif    
+        m_imageCaptureControl = new QGstreamerImageCaptureControl(m_captureSession);
+    }
+
+    m_audioInputEndpointSelector = new QGstreamerAudioInputEndpointSelector(this);
+    connect(m_audioInputEndpointSelector, SIGNAL(activeEndpointChanged(QString)), m_captureSession, SLOT(setCaptureDevice(QString)));
+
+    if (m_captureSession && m_audioInputEndpointSelector->availableEndpoints().size() > 0)
+        m_captureSession->setCaptureDevice(m_audioInputEndpointSelector->defaultEndpoint());
+
+    m_metaDataControl = new QGstreamerCaptureMetaDataControl(this);
+    connect(m_metaDataControl, SIGNAL(metaDataChanged(QMap<QByteArray,QVariant>)),
+            m_captureSession, SLOT(setMetaData(QMap<QByteArray,QVariant>)));
+}
+
+QGstreamerCaptureService::~QGstreamerCaptureService()
+{
+}
+
+QMediaControl *QGstreamerCaptureService::requestControl(const char *name)
+{
+    if (!m_captureSession)
+        return 0;   
+    
+    if (qstrcmp(name,QAudioEndpointSelector_iid) == 0)
+        return m_audioInputEndpointSelector;
+
+    if (qstrcmp(name,QVideoDeviceControl_iid) == 0)
+        return m_videoInputDevice;
+
+    if (qstrcmp(name,QMediaRecorderControl_iid) == 0)
+        return m_captureSession->recorderControl();
+
+    if (qstrcmp(name,QAudioEncoderControl_iid) == 0)
+        return m_captureSession->audioEncodeControl();
+
+    if (qstrcmp(name,QVideoEncoderControl_iid) == 0)
+        return m_captureSession->videoEncodeControl();
+
+    if (qstrcmp(name,QImageEncoderControl_iid) == 0)
+        return m_captureSession->imageEncodeControl();
+
+
+    if (qstrcmp(name,QMediaContainerControl_iid) == 0)
+        return m_captureSession->mediaContainerControl();
+
+    if (qstrcmp(name,QCameraControl_iid) == 0)
+        return m_cameraControl;
+
+    if (qstrcmp(name,QMetaDataWriterControl_iid) == 0)
+        return m_metaDataControl;
+
+    if (qstrcmp(name, QCameraImageCaptureControl_iid) == 0)
+        return m_imageCaptureControl;
+    
+    if (!m_videoOutput) {
+        if (qstrcmp(name, QVideoRendererControl_iid) == 0) {
+            m_videoOutput = m_videoRenderer;
+            m_captureSession->setVideoPreview(m_videoRenderer);
+        } else if (qstrcmp(name, QVideoWindowControl_iid) == 0) {
+            m_videoOutput = m_videoWindow;
+            m_captureSession->setVideoPreview(m_videoWindow);
+        } else if (qstrcmp(name, QVideoWidgetControl_iid) == 0) {
+            m_captureSession->setVideoPreview(m_videoWidgetControl);
+            m_videoOutput = m_videoWidgetControl;
+        }
+
+        if (m_videoOutput)
+            return m_videoOutput;
+    }
+
+    return 0;
+}
+
+void QGstreamerCaptureService::releaseControl(QMediaControl *control)
+{
+    if (control && control == m_videoOutput) {
+        m_videoOutput = 0;
+        m_captureSession->setVideoPreview(0);
+    }
+}