VideoFillMode.qml Example File

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 import QtQuick 2.0
 import QtMultimedia 5.0

 Scene {
     id: root

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

     Button {
         id: button
         anchors {
             right: parent.right
             verticalCenter: parent.verticalCenter
             margins: parent.margins
         }
         width: 150
         height: root.buttonHeight
         text: "PreserveAspectFit"
         onClicked: {
             if (!content.dummy) {
                 var video = content.contentItem()
                 if (video.fillMode == VideoOutput.Stretch) {
                     video.fillMode = VideoOutput.PreserveAspectFit
                     text = "PreserveAspectFit"
                 } else if (video.fillMode == VideoOutput.PreserveAspectFit) {
                     video.fillMode = VideoOutput.PreserveAspectCrop
                     text = "PreserveAspectCrop"
                 } else {
                     video.fillMode = VideoOutput.Stretch
                     text = "Stretch"
                 }
             }
         }
     }

     Component.onCompleted: root.content = content
 }