qtmobility/src/multimedia/qvideoencodercontrol.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 23 Jun 2010 19:08:38 +0300
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Mobility Components.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights.  These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qvideoencodercontrol.h"
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#include <QtCore/qstringlist.h>
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#include <QtCore/qvariant.h>
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QT_BEGIN_NAMESPACE
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/*!
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    \class QVideoEncoderControl
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    \preliminary
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    \ingroup multimedia
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    \brief The QVideoEncoderControl class provides access to the settings
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    of a media service that performs video encoding.
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    If a QMediaService supports encoding video data it will implement
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    QVideoEncoderControl.  This control provides information about the limits
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    of restricted video encoder options and allows the selection of a set of
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    video encoder settings as specified in a QVideoEncoderSettings object.
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    The functionality provided by this control is exposed to application code
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    through the QMediaRecorder class.
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    The interface name of QVideoEncoderControl is \c com.nokia.Qt.QVideoEncoderControl/1.0 as
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    defined in QVideoEncoderControl_iid.
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    \sa QMediaRecorder, QVideoEncoderSettings, QMediaService::requestControl()
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*/
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/*!
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    \macro QVideoEncoderControl_iid
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    \c com.nokia.Qt.QVideoEncoderControl/1.0
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    Defines the interface name of the QVideoEncoderControl class.
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    \relates QVideoEncoderControl
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*/
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/*!
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    Create a new video encoder control object with the given \a parent.
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*/
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QVideoEncoderControl::QVideoEncoderControl(QObject *parent)
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    :QMediaControl(parent)
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{
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}
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/*!
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    Destroys a video encoder control.
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*/
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QVideoEncoderControl::~QVideoEncoderControl()
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{
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}
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/*!
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    \fn QVideoEncoderControl::supportedVideoCodecs() const
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    Returns the list of supported video codecs.
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*/
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/*!
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    \fn QVideoEncoderControl::videoCodecDescription(const QString &codec) const
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    Returns a description of a video \a codec.
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*/
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/*!
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    \fn QVideoEncoderControl::supportedEncodingOptions(const QString &codec) const
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    Returns a list of supported encoding options for a video \a codec.
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    The names and types of the options in the list is system dependent.
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*/
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/*!
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    \fn QVideoEncoderControl::encodingOption(const QString &codec, const QString &option) const
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    Returns the value of a video \a codec \a option.
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*/
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/*!
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    \fn QVideoEncoderControl::setEncodingOption(const QString &codec, const QString &option, const QVariant &value)
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    Sets the \a value of a \a codec specific \a option.
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*/
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/*!
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    \fn QVideoEncoderControl::supportedResolutions(const QVideoEncoderSettings &settings = QVideoEncoderSettings(),
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                                                   bool *continuous = 0) const
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    Returns a list of supported resolutions.
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    If non null video \a settings parameter is passed,
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    the returned list is reduced to resolution supported with partial settings like
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    \l {QVideoEncoderSettings::setCodec()}{video codec} or
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    \l {QVideoEncoderSettings::setFrameRate()}{frame rate} applied.
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    If the encoder supports arbitrary resolutions within the supported resolutions range,
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    *\a continuous is set to true, otherwise *\a continuous is set to false.
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    \sa QVideoEncoderSettings::resolution()
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*/
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/*!
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    \fn QVideoEncoderControl::supportedFrameRates(const QVideoEncoderSettings &settings = QVideoEncoderSettings(),
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                                                  bool *continuous = 0) const
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    Returns a list of supported frame rates.
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    If non null video \a settings parameter is passed,
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    the returned list is reduced to frame rates supported with partial settings like
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    \l {QVideoEncoderSettings::setCodec()}{video codec} or
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    \l {QVideoEncoderSettings::setResolution()}{video resolution} applied.
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    If the encoder supports arbitrary frame rates within the supported range,
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    *\a continuous is set to true, otherwise *\a continuous is set to false.
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    \sa QVideoEncoderSettings::frameRate()
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*/
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/*!
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    \fn QVideoEncoderControl::videoSettings() const
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    Returns the selected video encoder settings.
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*/
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/*!
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    \fn QVideoEncoderControl::setVideoSettings(const QVideoEncoderSettings &settings)
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    Sets the selected video encoder \a settings.
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*/
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#include "moc_qvideoencodercontrol.cpp"
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QT_END_NAMESPACE
1
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