VideoPlaybackRate.qml Example File | Qt Multimedia 5.4

- Qt 5.4
- Qt Multimedia
- QML Video Example
- VideoPlaybackRate.qml Example File
- Qt 5.4.2 Reference Documentation

# VideoPlaybackRate.qml Example File

video/qmlvideo/qml/qmlvideo/VideoPlaybackRate.qml

    /****************************************************************************
    **
    ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
    ** Contact: http://www.qt-project.org/legal
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    ** This file is part of the Qt Mobility Components.
    **
    ** $QT_BEGIN_LICENSE:LGPL21$
    ** Commercial License Usage
    ** Licensees holding valid commercial Qt licenses may use this file in
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    ** GNU Lesser General Public License Usage
    ** Alternatively, this file may be used under the terms of the GNU Lesser
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    ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
    ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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    import QtQuick 2.0

    Scene {
        id: root
        property int margin: 20
        property real delta: 0.1
        property string contentType: "video"

        Content {
            id: content
            anchors.centerIn: parent
            width: parent.contentWidth
            contentType: "video"
            source: parent.source1
            volume: parent.volume
            onVideoFramePainted: root.videoFramePainted()
        }

        Button {
            id: increaseButton
            anchors {
                right: parent.right
                bottom: decreaseButton.top
                margins: parent.margins
            }
            width: Math.max(parent.width, parent.height) / 10
            height: root.buttonHeight
            text: "Increase"
            onClicked: {
                var video = content.contentItem()
                video.playbackRate += delta
            }
        }

        Button {
            id: decreaseButton
            anchors {
                right: parent.right
                verticalCenter: parent.verticalCenter
                margins: parent.margins
            }
            width: Math.max(parent.width, parent.height) / 10
            height: root.buttonHeight
            text: "Decrease"
            onClicked: {
                var video = content.contentItem()
                video.playbackRate -= delta
            }
        }

        Button {
            id: valueButton
            anchors {
                left: parent.left
                verticalCenter: parent.verticalCenter
                margins: parent.margins
            }
            width: Math.max(parent.width, parent.height) / 25
            height: root.buttonHeight
            enabled: false
            text: Math.round(10 * content.contentItem().playbackRate) / 10
        }

        Component.onCompleted: root.content = content
    }