Content.qml Example File
multimedia/video/qmlvideo/qml/qmlvideo/Content.qml
import QtQuick 2.0
Rectangle {
id: root
border.color: "white"
border.width: showBorder ? 1 : 0
color: "transparent"
property string contentType
property string source
property real volume
property bool dummy: false
property bool autoStart: true
property bool started: false
property bool showFrameRate: false
property bool showBorder: false
signal initialized
signal error
signal videoFramePainted
Loader {
id: contentLoader
}
Connections {
id: framePaintedConnection
onFramePainted: {
if (frameRateLoader.item)
frameRateLoader.item.notify()
root.videoFramePainted()
}
ignoreUnknownSignals: true
}
Connections {
id: errorConnection
onFatalError: {
console.log("[qmlvideo] Content.onFatalError")
stop()
root.error()
}
ignoreUnknownSignals: true
}
Loader {
id: frameRateLoader
source: root.showFrameRate ? "../frequencymonitor/FrequencyItem.qml" : ""
onLoaded: {
item.parent = root
item.anchors.top = root.top
item.anchors.right = root.right
item.anchors.margins = 10
}
}
onWidthChanged: {
if (contentItem())
contentItem().width = width
}
onHeightChanged: {
if (contentItem())
contentItem().height = height
}
function initialize() {
if ("video" == contentType) {
contentLoader.source = "VideoItem.qml"
if (Loader.Error == contentLoader.status) {
contentLoader.source = "VideoDummy.qml"
dummy = true
}
contentLoader.item.volume = volume
} else if ("camera" == contentType) {
contentLoader.source = "CameraItem.qml"
if (Loader.Error == contentLoader.status) {
contentLoader.source = "CameraDummy.qml"
dummy = true
}
} else {
console.log("[qmlvideo] Content.initialize: error: invalid contentType")
}
if (contentLoader.item) {
contentLoader.item.sizeChanged.connect(updateRootSize)
contentLoader.item.parent = root
contentLoader.item.width = root.width
framePaintedConnection.target = contentLoader.item
errorConnection.target = contentLoader.item
if (root.autoStart)
root.start()
}
root.initialized()
}
function start() {
if (contentLoader.item) {
if (root.contentType == "video")
contentLoader.item.mediaSource = root.source
contentLoader.item.start()
root.started = true
}
}
function stop() {
if (contentLoader.item) {
contentLoader.item.stop()
if (root.contentType == "video")
contentLoader.item.mediaSource = ""
root.started = false
}
}
function contentItem() { return contentLoader.item }
function updateRootSize() { root.height = contentItem().height }
}