ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Using digital rights management
private function getMetadata():void{
}
extrapolated-path-to-metadata = "http://metadatas.mywebserver.com/" + videoname;
var urlRequest : URLRequest = new URLRequest(extrapolated-path-to-the-metadata + ".metadata");
var urlStream : URLStream = new URLStream();
urlStream.addEventListener(Event.COMPLETE, handleMetadata);
urlStream.addEventListener(IOErrorEvent.NETWORK_ERROR, handleIOError);
urlStream.addEventListener(IOErrorEvent.IO_ERROR, handleIOError);
urlStream.addEventListener(IOErrorEvent.VERIFY_ERROR, handleIOError);
try{
urlStream.load(urlRequest);
}catch(se:SecurityError){
videoLog.text += se.toString() + "\n";
}catch(e:Error){
videoLog.text += e.toString() + "\n";
}
Open Source Media Framework
Open Source Media Framework (OSMF) is an ActionScript-based framework that gives you complete flexibility and
control in creating your own rich media experiences. For more information on OSMF, visit the OSMF Developer Site.
Workflow for playing protected content
1 Create a MediaPlayer instance.
player = new MediaPlayer();
2 Register MediaPlayerCapabilityChangeEvent.HAS_DRM_CHANGE event to the player. This event will be
dispatched if the content is DRM protected.
player.addEventListener(MediaPlayerCapabilityChangeEvent.HAS_DRM_CHANGE,
onDRMCapabilityChange);
3 In the event handler, obtain the DRMTrait instance. DRMTrait is the interface through which you invoke DRMrelated
methods, such as authenticate(). When loading a DRM-protected content, OSMF performs the DRM
validating actions and dispatches state events. Add a DRMEvent.DRM_STATE_CHANGE event handler to the
DRMTrait.
private function onDRMCapabilityChange
(event :MediaPlayerCapabilityChangeEvent) :void
{
if (event.type == MediaPlayerCapabilityChangeEvent.HAS_DRM_CHANGE
&& event.enabled)
{
drmTrait = player.media.getTrait(MediaTraitType.DRM) as DRMTrait;
drmTrait.addEventListener
(DRMEvent.DRM_STATE_CHANGE, onDRMStateChange);
}
}
4 Handle the DRM events in the onDRMStateChange() method.
Last updated 6/6/2012
547