Viewing a video’s cue points using a Spark VideoPlayer control in Flex 4

The following example shows how you can determine if a FLV file has cue points by listening for the metadataReceived event on a Spark VideoPlayer control in Flex 4 and then inspecting the VideoEvent object’s metadataInfo.cuePoints property.

Full code after the jump.

The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see www.adobe.com/products/flex/. To download the latest nightly build of the Flex 4 SDK, see opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4.

For more information on getting started with Flex 4 and Flash Builder 4, see the official Adobe Flex Team blog.

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/05/22/viewing-a-videos-cue-points-using-a-spark-videoplayer-control-in-flex-gumbo/ -->
<s:Application name="Spark_VideoPlayer_metadataReceived_cuePoints_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo">

    <fx:Script>
        <![CDATA[
            import spark.events.VideoEvent;

            private function videoPlayer_metadataReceived(evt:VideoEvent):void {
                panel.title = videoPlayer.source.toString();
                arrList = new ArrayList(evt.metadataInfo.cuePoints);
            }
        ]]>
    </fx:Script>

    <fx:Declarations>
        <s:ArrayList id="arrList" />
    </fx:Declarations>

    <s:Panel id="panel"
            horizontalCenter="0"
            verticalCenter="0">
        <s:layout>
            <s:HorizontalLayout />
        </s:layout>
        <s:VideoPlayer id="videoPlayer"
                source="http://helpexamples.com/flash/video/cuepoints.flv"
                muted="true"
                metadataReceived="videoPlayer_metadataReceived(event);" />
        <mx:DataGrid id="dataGrid"
                dataProvider="{arrList}"
                height="100%">
            <mx:columns>
                <mx:DataGridColumn dataField="name" />
                <mx:DataGridColumn dataField="time" />
                <mx:DataGridColumn dataField="type" />
            </mx:columns>
        </mx:DataGrid>
    </s:Panel>

</s:Application>

This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.

2 thoughts on “Viewing a video’s cue points using a Spark VideoPlayer control in Flex 4

  1. I’m getting a Cannot resolve attribute ‘metadataReceived’ for component type spark.components.VideoPlayer.

    1. @rdeman,

      This is an old example from a very early example and I don’t believe it works anymore in the latest Flex 4.x SDK. I’m not sure how you’d access a video’s cue point or metadata information in the new OSMF architecture with the Spark VideoDisplay and/or VideoPlayback components. If you need this functionality, you may want to stick with the older mx:VideoDisplay control for the time being.

      Peter

Comments are closed.