LightweightVideoElement

Paket	org.osmf.elements
Klass	public class LightweightVideoElement
Arv	LightweightVideoElement LoadableElementBase MediaElement EventDispatcher Object
Underklasser	VideoElement

Språkversion:

ActionScript 3.0

Produktversion:

OSMF 1.0

Körningsmiljöversioner:

Flash Player 10, AIR 1.5

LightweightVideoElement is a media element specifically created for video playback. It supports both streaming and progressive formats.

LightweightVideoElement is a lightweight alternative to VideoElement. Whereas LightweightVideoElement supports only a subset of video delivery modes (specifically progressive and simple RTMP streaming), VideoElement supports all video delivery modes.

The LightweightVideoElement uses a NetLoader class to load and unload its media. Developers requiring custom loading logic for video can pass their own loaders to the LightweightVideoElement constructor. These loaders should subclass NetLoader.

The basic steps for creating and using a LightweightVideoElement are:

Create a new URLResource pointing to the URL of the video stream or file containing the video to be loaded.
Create a new NetLoader.
Create the new LightweightVideoElement, passing the NetLoader and URLResource as parameters.
Create a new MediaPlayer.
Assign the LightweightVideoElement to the MediaPlayer's media property.
Control the media using the MediaPlayer's methods, properties, and events.
When done with the LightweightVideoElement, set the MediaPlayer's media property to null. This will unload the LightweightVideoElement.

The LightweightVideoElement supports Flash Media Token Authentication, for passing authentication tokens through the NetConnection.

The LightweightVideoElement has support for the Flash Player's DRM implementation. Note that the startDate, endDate, and period properties of the DRMTrait on this element correspond to the voucher validity before playback starts. Once playback begins, these properties correspond to the playback time window (as found on flash.net.drm.DRMVoucher).

Visa exemplen

Relaterade API-element

org.osmf.elements.VideoElement
org.osmf.media.URLResource
org.osmf.media.MediaElement
org.osmf.media.MediaPlayer
org.osmf.net.NetLoader

Publika egenskaper

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	Egenskap		Definieras med
		client : NetClient [skrivskyddad] The NetClient used by this object's NetStream.	LightweightVideoElement
		constructor : Object En referens till klassobjektet eller konstruktorfunktionen för en given objektinstans.	Object
		container : IMediaContainer [skrivskyddad] The media container that this element uses.	MediaElement
		currentFPS : Number [skrivskyddad] The number of frames per second being displayed.	LightweightVideoElement
		deblocking : int Indicates the type of filter applied to decoded video as part of post-processing.	LightweightVideoElement
		defaultDuration : Number Defines the duration that the element's TimeTrait will expose until the element's content is loaded.	LightweightVideoElement
		metadataNamespaceURLs : Vector.<String> [skrivskyddad] A Vector containing the namespace URLs for all Metadata objects stored within this MediaElement.	MediaElement
		resource : MediaResourceBase The media resource that this media element operates on.	MediaElement
		smoothing : Boolean Specifies whether the video should be smoothed (interpolated) when it is scaled.	LightweightVideoElement
		traitTypes : Vector.<String> [skrivskyddad] A Vector of MediaTraitType values representing the trait types on this media element.	MediaElement

Skyddade egenskaper

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	Egenskap		Definieras med
		loader : LoaderBase The LoaderBase used by this element to load resources.	LoadableElementBase

Publika metoder

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	Metod		Definieras med
		LightweightVideoElement(resource:MediaResourceBase = null, loader:NetLoader = null) Constructor.	LightweightVideoElement
		addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void Registrerar ett händelseavlyssnarobjekt för ett EventDispatcher-objekt så att avlyssnaren får meddelanden om händelser.	EventDispatcher
		addMetadata(namespaceURL:String, metadata:Metadata):void Adds a Metadata object to this MediaElement under the specified namespace URL.	MediaElement
		dispatchEvent(event:Event):Boolean Skickar en händelse till händelseflödet.	EventDispatcher
		getMetadata(namespaceURL:String):Metadata Returns the Metadata object that is stored under this MediaElement with the specified namespace URL.	MediaElement
		getTrait(type:String):org.osmf.traits:MediaTraitBase Returns the media trait of the specified type.	MediaElement
		hasEventListener(type:String):Boolean Kontrollerar om EventDispatcher-objektet har några avlyssnare registrerade för en viss typ av händelse.	EventDispatcher
		hasOwnProperty(name:String):Boolean Anger om det finns en egenskap angiven för ett objekt.	Object
		hasTrait(type:String):Boolean Determines whether this media element has a media trait of the specified type.	MediaElement
		isPrototypeOf(theClass:Object):Boolean Anger om en instans av klassen Object finns i prototypkedjan för objektet som anges som parameter.	Object
		propertyIsEnumerable(name:String):Boolean Anger om den angivna egenskapen finns och är uppräkningsbar.	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Tar bort en avlyssnare från EventDispatcher-objektet.	EventDispatcher
		removeMetadata(namespaceURL:String):Metadata Removes the Metadata object that was stored under this MediaElement with the specified namespace URL.	MediaElement
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Anger tillgänglighet för en dynamisk egenskap för slingåtgärder.	Object
		toLocaleString():String Returnerar det här objektets strängrepresentation, formaterad i enlighet med språkspecifika konventioner.	Object
		toString():String Returnerar det angivna objektets strängbeteckning.	Object
		valueOf():Object Returnerar det angivna objektets primitiva värde.	Object
		willTrigger(type:String):Boolean Kontrollerar om en händelseavlyssnare är registrerad för det här EventDispatcher-objektet eller något av dess överordnade objekt för den angivna händelsetypen.	EventDispatcher

Skyddade metoder

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	Metod		Definieras med
		addTrait(type:String, instance:org.osmf.traits:MediaTraitBase):void Adds a new media trait to this media element.	MediaElement
		createLoadTrait(resource:MediaResourceBase, loader:LoaderBase):org.osmf.traits:LoadTrait Subclasses can override this method to return a custom LoadTrait subclass.	LoadableElementBase
		processLoadingState():void Subclasses can override this method to do processing when the media element enters the LOADING state.	LoadableElementBase
		processReadyState():void Subclasses can override this method to do processing when the media element enters the READY state.	LoadableElementBase
		processUnloadingState():void Subclasses can override this method to do processing when the media element enters the UNLOADING state.	LoadableElementBase
		removeTrait(type:String):org.osmf.traits:MediaTraitBase Removes a media trait from this media element.	MediaElement
		setupTraits():void Sets up the traits for this media element.	MediaElement

Händelser

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Dölj ärvda händelser

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	Sammanfattning	Definieras med
activate	[utsändningshändelse] Skickas när Flash Player eller AIR får operativsystemfokus och blir aktivt.	EventDispatcher
containerChange	Dispatched when the element's container property changed.	MediaElement
deactivate	[utsändningshändelse] Skickas när Flash Player eller AIR förlorar operativsystemfokus och blir inaktivt.	EventDispatcher
mediaError	Dispatched when an error which impacts the operation of the media element occurs.	MediaElement
mediaInfo	Dispatched when a info which impacts the operation of the media element is available.	MediaElement
metadataAdd	Dispatched when a Metadata object has been added to this media element.	MediaElement
metadataRemove	Dispatched when a Metadata object has been removed from this media element.	MediaElement
traitAdd	Dispatched when a trait is added to the media element.	MediaElement
traitRemove	Dispatched when a trait is removed from the media element.	MediaElement

Egenskapsdetaljer

currentFPS

egenskap

currentFPS:Number [skrivskyddad]

The number of frames per second being displayed. Will be zero until the video is loaded and playing.

Implementering
public function get currentFPS():Number

Konstruktordetaljer

Exempel Så här använder du exemplet

LightweightVideoElementExample.as

package asdoc.org.osmf.elements
{
    import flash.display.Sprite;
    import flash.display.StageAlign;
    import flash.display.StageScaleMode;
    
    import org.osmf.elements.LightweightVideoElement;
    import org.osmf.elements.VideoElement;
    import org.osmf.media.MediaPlayer;
    import org.osmf.media.MediaPlayerSprite;
    import org.osmf.media.URLResource;
    
    public class LightweightVideoElementExample extends Sprite
    {
        public function LightweightVideoElementExample()
        {
            super();
            
            stage.scaleMode = StageScaleMode.NO_SCALE;
            stage.align = StageAlign.TOP_LEFT;
            
            var mediaPlayerSprite:MediaPlayerSprite = new MediaPlayerSprite();
            var videoElement:LightweightVideoElement = new LightweightVideoElement();
            videoElement.resource = new URLResource("http://mediapm.edgesuite.net/strobe/content/test/AFaerysTale_sylviaApostol_640_500_short.flv");
            
            addChild(mediaPlayerSprite);
            mediaPlayerSprite.media = videoElement;    
        }
    }
}

Juridiska meddelanden | Onlinesekretesspolicy

LightweightVideoElement - AS3 OSMF

Paketx

Språkelement

Bilagor

Paket org.osmf.elements

client

currentFPS

deblocking

defaultDuration

smoothing

	`resource:MediaResourceBase` (default = `null`) — URLResource that points to the video source that the LightweightVideoElement will use. For dynamic streaming content, use a DynamicStreamingResource.

	`loader:NetLoader` (default = `null`) — NetLoader used to load the video. If null, then a NetLoader will be used.