qtmobility/plugins/multimedia/v4l/camera/v4lvideoencode.h
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the Qt Mobility Components.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
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    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #ifndef V4LVIDEOENCODE_H
       
    43 #define V4LVIDEOENCODE_H
       
    44 
       
    45 #include <qvideoencodercontrol.h>
       
    46 class V4LCameraSession;
       
    47 
       
    48 #include <QtCore/qstringlist.h>
       
    49 #include <QtCore/qmap.h>
       
    50 QTM_USE_NAMESPACE
       
    51 
       
    52 class V4LVideoEncode : public QVideoEncoderControl
       
    53 {
       
    54     Q_OBJECT
       
    55 public:
       
    56     V4LVideoEncode(QObject *parent);
       
    57     virtual ~V4LVideoEncode();
       
    58 
       
    59     QList<QSize> supportedResolutions(const QVideoEncoderSettings &settings = QVideoEncoderSettings(),
       
    60                                       bool *continuous = 0) const;
       
    61 
       
    62     QList< qreal > supportedFrameRates(const QVideoEncoderSettings &settings = QVideoEncoderSettings(),
       
    63                                        bool *continuous = 0) const;
       
    64 
       
    65     QPair<int,int> rateAsRational() const;
       
    66 
       
    67     QStringList supportedVideoCodecs() const;
       
    68     QString videoCodecDescription(const QString &codecName) const;
       
    69 
       
    70     QVideoEncoderSettings videoSettings() const;
       
    71     void setVideoSettings(const QVideoEncoderSettings &settings);
       
    72 
       
    73     QStringList supportedEncodingOptions(const QString &codec) const;
       
    74     QVariant encodingOption(const QString &codec, const QString &name) const;
       
    75     void setEncodingOption(const QString &codec, const QString &name, const QVariant &value);
       
    76 
       
    77 private:
       
    78     V4LCameraSession *m_session;
       
    79     QStringList m_codecs;
       
    80     QMap<QString,QString> m_codecDescriptions;
       
    81     QMap<QString,QByteArray> m_elementNames;
       
    82     QMap<QString,QStringList> m_codecOptions;
       
    83 
       
    84     QVideoEncoderSettings m_videoSettings;
       
    85     QMap<QString, QMap<QString, QVariant> > m_options;
       
    86 };
       
    87 
       
    88 #endif