VideoPlaybackRate.qml Example File

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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: 90
         height: root.buttonHeight
         text: "Increase"
         onClicked: {
             var video = content.contentItem()
             video.playbackRate = video.playbackRate + delta
         }
     }

     Button {
         id: decreaseButton
         anchors {
             right: parent.right
             verticalCenter: parent.verticalCenter
             margins: parent.margins
         }
         width: 90
         height: root.buttonHeight
         text: "Decrease"
         onClicked: {
             var video = content.contentItem()
             video.playbackRate = video.playbackRate - delta
         }
     }

     Button {
         id: valueButton
         anchors {
             left: parent.left
             verticalCenter: parent.verticalCenter
             margins: parent.margins
         }
         width: 50
         height: root.buttonHeight
         enabled: false
         text: Math.round(10 * content.contentItem().playbackRate) / 10
     }

     Component.onCompleted: root.content = content
 }