Initial copy of QtMultimediaKit.

Comes from original repo, with SHA1:
2c82d5611655e5967f5c5095af50c0991c4378b2

src/plugins/gstreamer/camerabin/camerabinrecorder.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 "camerabinrecorder.h"
+#include "camerabinaudioencoder.h"
+#include "camerabinvideoencoder.h"
+#include "camerabincontainer.h"
+#include <QtCore/QDebug>
+
+CameraBinRecorder::CameraBinRecorder(CameraBinSession *session)
+    :QMediaRecorderControl(session),
+     m_session(session),
+     m_state(QMediaRecorder::StoppedState)
+{
+    connect(m_session, SIGNAL(stateChanged(QCamera::State)), SLOT(updateState()));
+    connect(m_session, SIGNAL(durationChanged(qint64)), SIGNAL(durationChanged(qint64)));
+    connect(m_session, SIGNAL(mutedChanged(bool)), this, SIGNAL(mutedChanged(bool)));
+}
+
+CameraBinRecorder::~CameraBinRecorder()
+{
+}
+
+QUrl CameraBinRecorder::outputLocation() const
+{
+    return m_session->outputLocation();
+}
+
+bool CameraBinRecorder::setOutputLocation(const QUrl &sink)
+{
+    m_session->setOutputLocation(sink);
+    return true;
+}
+
+QMediaRecorder::State CameraBinRecorder::state() const
+{
+    return m_state;
+}
+
+void CameraBinRecorder::updateState()
+{
+    if (m_session->state() != QCamera::ActiveState &&
+            m_state != QMediaRecorder::StoppedState) {
+        m_session->stopVideoRecording();
+        emit stateChanged(m_state = QMediaRecorder::StoppedState);
+    }
+}
+
+qint64 CameraBinRecorder::duration() const
+{
+    return m_session->duration();
+}
+
+void CameraBinRecorder::record()
+{
+    if (m_session->state() == QCamera::ActiveState) {
+        if (m_state == QMediaRecorder::PausedState)
+            m_session->resumeVideoRecording();
+        else
+            m_session->recordVideo();
+        emit stateChanged(m_state = QMediaRecorder::RecordingState);
+    } else
+        emit error(QMediaRecorder::ResourceError, tr("Service has not been started"));
+}
+
+void CameraBinRecorder::pause()
+{
+    if (m_session->state() == QCamera::ActiveState) {
+        m_session->pauseVideoRecording();
+        emit stateChanged(m_state = QMediaRecorder::PausedState);
+    } else
+        emit error(QMediaRecorder::ResourceError, tr("Service has not been started"));
+}
+
+void CameraBinRecorder::stop()
+{
+    if (m_session->state() == QCamera::ActiveState) {
+        m_session->stopVideoRecording();
+        emit stateChanged(m_state = QMediaRecorder::StoppedState);
+    }
+}
+
+bool CameraBinRecorder::findCodecs()
+{
+    //Check the codecs are compatible with container,
+    //and choose the compatible codecs/container if omitted
+    CameraBinAudioEncoder *audioEncodeControl = m_session->audioEncodeControl();
+    CameraBinVideoEncoder *videoEncodeControl = m_session->videoEncodeControl();
+    CameraBinContainer *mediaContainerControl = m_session->mediaContainerControl();
+
+    audioEncodeControl->resetActualSettings();
+    videoEncodeControl->resetActualSettings();
+    mediaContainerControl->resetActualContainer();
+
+    QStringList containerCandidates;
+    if (mediaContainerControl->containerMimeType().isEmpty())
+        containerCandidates = mediaContainerControl->supportedContainers();
+    else
+        containerCandidates << mediaContainerControl->containerMimeType();
+
+
+    QStringList audioCandidates;
+    QAudioEncoderSettings audioSettings = audioEncodeControl->audioSettings();
+    if (audioSettings.codec().isEmpty())
+        audioCandidates = audioEncodeControl->supportedAudioCodecs();
+    else
+        audioCandidates << audioSettings.codec();
+
+    QStringList videoCandidates;
+    QVideoEncoderSettings videoSettings = videoEncodeControl->videoSettings();
+    if (videoSettings.codec().isEmpty())
+        videoCandidates = videoEncodeControl->supportedVideoCodecs();
+    else
+        videoCandidates << videoSettings.codec();
+
+    QString container;
+    QString audioCodec;
+    QString videoCodec;
+
+    foreach (const QString &containerCandidate, containerCandidates) {
+        QSet<QString> supportedTypes = mediaContainerControl->supportedStreamTypes(containerCandidate);
+
+        audioCodec.clear();
+        videoCodec.clear();
+
+        bool found = false;
+        foreach (const QString &audioCandidate, audioCandidates) {
+            QSet<QString> audioTypes = audioEncodeControl->supportedStreamTypes(audioCandidate);
+            if (!audioTypes.intersect(supportedTypes).isEmpty()) {
+                found = true;
+                audioCodec = audioCandidate;
+                break;
+            }
+        }
+        if (!found)
+            continue;
+
+        found = false;
+        foreach (const QString &videoCandidate, videoCandidates) {
+            QSet<QString> videoTypes = videoEncodeControl->supportedStreamTypes(videoCandidate);
+            if (!videoTypes.intersect(supportedTypes).isEmpty()) {
+                found = true;
+                videoCodec = videoCandidate;
+                break;
+            }
+        }
+        if (!found)
+            continue;
+
+
+        container = containerCandidate;
+        break;
+    }
+
+    if (container.isEmpty()) {
+        qWarning() << "Camera error: Not compatible codecs and container format.";
+        emit error(QMediaRecorder::FormatError, tr("Not compatible codecs and container format."));
+        return false;
+    } else {
+        mediaContainerControl->setActualContainer(container);
+
+        QAudioEncoderSettings audioSettings = audioEncodeControl->audioSettings();
+        audioSettings.setCodec(audioCodec);
+        audioEncodeControl->setActualAudioSettings(audioSettings);
+
+        QVideoEncoderSettings videoSettings = videoEncodeControl->videoSettings();
+        videoSettings.setCodec(videoCodec);
+        videoEncodeControl->setActualVideoSettings(videoSettings);
+    }
+
+    return true;
+}
+
+void CameraBinRecorder::applySettings()
+{
+    findCodecs();
+}
+
+bool CameraBinRecorder::isMuted() const
+{
+    return m_session->isMuted();
+}
+
+void CameraBinRecorder::setMuted(bool muted)
+{
+    m_session->setMuted(muted);
+}