--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qtmobility/plugins/multimedia/gstreamer/mediacapture/maemo/qgstreamervideoencode_maemo.cpp	Mon May 03 13:18:40 2010 +0300
@@ -0,0 +1,179 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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 "qgstreamervideoencode_maemo.h"
+#include "qgstreamercapturesession_maemo.h"
+#include "qgstreamermediacontainercontrol_maemo.h"
+
+#include <QtCore/qdebug.h>
+
+QGstreamerVideoEncode::QGstreamerVideoEncode(QGstreamerCaptureSession *session)
+    :QVideoEncoderControl(session), m_session(session)
+{
+    QList<QByteArray> codecCandidates;
+    codecCandidates << "video/mpeg4"; //"video/h264" << "video/xvid" << "video/mpeg4" << "video/mpeg1" << "video/mpeg2" << "video/theora";
+
+    m_elementNames["video/mpeg4"] = "dspmp4venc";
+
+    m_codecOptions["video/mpeg4"] = QStringList() << "quantizer";
+
+    foreach( const QByteArray& codecName, codecCandidates ) {
+        QByteArray elementName = m_elementNames[codecName];
+        GstElementFactory *factory = gst_element_factory_find(elementName.constData());
+        if (factory) {
+            m_codecs.append(codecName);
+            const gchar *descr = gst_element_factory_get_description(factory);
+            m_codecDescriptions.insert(codecName, QString::fromUtf8(descr));
+
+            m_streamTypes.insert(codecName,
+                                 QGstreamerMediaContainerControl::supportedStreamTypes(factory, GST_PAD_SRC));
+
+            gst_object_unref(GST_OBJECT(factory));
+        }
+    }
+
+    if (!m_codecs.isEmpty())
+        m_videoSettings.setCodec(m_codecs[0]);
+}
+
+QGstreamerVideoEncode::~QGstreamerVideoEncode()
+{
+}
+
+QList<QSize> QGstreamerVideoEncode::supportedResolutions(const QVideoEncoderSettings &, bool *continuous) const
+{
+    if (continuous)
+        *continuous = m_session->videoInput() != 0;
+
+    return m_session->videoInput() ? m_session->videoInput()->supportedResolutions() : QList<QSize>();
+}
+
+QList< qreal > QGstreamerVideoEncode::supportedFrameRates(const QVideoEncoderSettings &, bool *continuous) const
+{
+    if (continuous)
+        *continuous = false;
+
+    return m_session->videoInput() ? m_session->videoInput()->supportedFrameRates() : QList<qreal>();
+}
+
+QStringList QGstreamerVideoEncode::supportedVideoCodecs() const
+{
+    return m_codecs;
+}
+
+QString QGstreamerVideoEncode::videoCodecDescription(const QString &codecName) const
+{
+    return m_codecDescriptions.value(codecName);
+}
+
+QStringList QGstreamerVideoEncode::supportedEncodingOptions(const QString &codec) const
+{
+    return m_codecOptions.value(codec);
+}
+
+QVariant QGstreamerVideoEncode::encodingOption(const QString &codec, const QString &name) const
+{
+    return m_options[codec].value(name);
+}
+
+void QGstreamerVideoEncode::setEncodingOption(
+        const QString &codec, const QString &name, const QVariant &value)
+{
+    m_options[codec][name] = value;
+}
+
+QVideoEncoderSettings QGstreamerVideoEncode::videoSettings() const
+{
+    return m_videoSettings;
+}
+
+void QGstreamerVideoEncode::setVideoSettings(const QVideoEncoderSettings &settings)
+{
+    m_videoSettings = settings;
+}
+
+GstElement *QGstreamerVideoEncode::createEncoder()
+{
+    QString codec = m_videoSettings.codec();
+
+    GstElement *encoderElement = gst_element_factory_make( m_elementNames.value(codec).constData(), "video-encoder");
+
+    return encoderElement;
+}
+
+QPair<int,int> QGstreamerVideoEncode::rateAsRational() const
+{
+    qreal frameRate = m_videoSettings.frameRate();
+
+    if (frameRate > 0.001) {
+        //convert to rational number
+        QList<int> denumCandidates;
+        denumCandidates << 1 << 2 << 3 << 5 << 10 << 1001 << 1000;
+
+        qreal error = 1.0;
+        int num = 1;
+        int denum = 1;
+
+        foreach (int curDenum, denumCandidates) {
+            int curNum = qRound(frameRate*curDenum);
+            qreal curError = qAbs(qreal(curNum)/curDenum - frameRate);
+
+            if (curError < error) {
+                error = curError;
+                num = curNum;
+                denum = curDenum;
+            }
+
+            if (curError < 1e-8)
+                break;
+        }
+
+        return QPair<int,int>(num,denum);
+    }
+
+    return QPair<int,int>();
+}
+
+
+QSet<QString> QGstreamerVideoEncode::supportedStreamTypes(const QString &codecName) const
+{
+    return m_streamTypes.value(codecName);
+}