CODEWITHSUNDEEP
apache-flexweb-applicationscameraflash-builder
Bilal Ahmad
Bilal Ahmad

Reputation: 301

Attach Camera with Flash Builder 4.6

I just want to start my webcam to display video, for this I wrote this code but it is not working. Any idea why It must not be working ? What possibly I might be making mistake ?

Please here is the code,

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
               xmlns:s="library://ns.adobe.com/flex/spark" 
               xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">
    <fx:Script>
        <![CDATA[
            import mx.events.FlexEvent;
            import mx.controls.Alert;

            protected function video_d_creationCompleteHandler(event:FlexEvent):void
            {
                // TODO Auto-generated method stub
                var camera:Camera = Camera.getCamera();
                if (camera) {
                    video_d.videoObject.attachCamera(camera);
                } else {
                    Alert.show("You don't seem to have a camera.");
                }
            }

        ]]>
    </fx:Script>
    <fx:Declarations>
        <!-- Place non-visual elements (e.g., services, value objects) here -->
    </fx:Declarations>
    <s:VideoDisplay x="15" y="23" id="video_d" creationComplete="video_d_creationCompleteHandler(event)" />
</s:Application>

Instead I see the popup with an error:

TypeError: Error #1009: Cannot access a property or method of a null object reference. at vv/video_d_creationCompleteHandler()[C:\Users\Malik\Adobe Flash Builder 4.6\vv\src\vv.mxml:15] at vv/__video_d_creationComplete()[C:\Users\Malik\Adobe Flash Builder 4.6\vv\src\vv.mxml:26] at flash.events::EventDispatcher/dispatchEventFunction() at flash.events::EventDispatcher/dispatchEvent() at mx.core::UIComponent/dispatchEvent()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:13152] at mx.core::UIComponent/set initialized()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:1818] at mx.managers::LayoutManager/doPhasedInstantiation()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\LayoutManager.as:842] at mx.managers::LayoutManager/doPhasedInstantiationCallback()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\LayoutManager.as:1180]

Awaiting your answers with many thanks. Thanks Bilal Ahmad

Upvotes: 1

Views: 3384

Answers (1)

Art
Art

Reputation: 831

Your VideoDisplay.videoObject is null. AFAIK it can be fixed like here. If you don't like this approach it's possible to do something like this:

<s:VideoDisplay  x="15" y="23" id="video_d" creationComplete="video_d_creationCompleteHandler(event)">
    <s:source>
        <s:DynamicStreamingVideoSource host="" streamType="{StreamType.LIVE}">
            <s:DynamicStreamingVideoItem  />
        </s:DynamicStreamingVideoSource>
    </s:source>
</s:VideoDisplay>

Or use good old mx:VideoDisplay.

Upvotes: 2

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