VideoElement

Paquete	org.osmf.elements
Clase	public class VideoElement
Herencia	VideoElement LightweightVideoElement LoadableElementBase MediaElement EventDispatcher Object

Versión del lenguaje:

ActionScript 3.0

Versión de producto:

OSMF 1.0

Versiones de motor de ejecución:

Flash Player 10, AIR 1.5

VideoElement is a media element specifically created for video playback. It supports streaming and progressive formats, as well as HTTP streaming and MBR streaming (for both RTMP and HTTP).

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

The VideoElement 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 VideoElement, passing the NetLoader and URLResource as parameters.
Create a new MediaPlayer.
Assign the VideoElement to the MediaPlayer's media property.
Control the media using the MediaPlayer's methods, properties, and events.
When done with the VideoElement, set the MediaPlayer's media property to null. This will unload the VideoElement.

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

The VideoElement 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).

Ver los ejemplos

Elementos de API relacionados

org.osmf.elements.LightweightVideoElement
org.osmf.media.URLResource
org.osmf.media.MediaElement
org.osmf.media.MediaPlayer
org.osmf.net.NetLoader
flash.net.drm.DRMVoucher

Propiedades públicas

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	Propiedad		Definido por
		client : NetClient [solo lectura] The NetClient used by this object's NetStream.	LightweightVideoElement
		constructor : Object Una referencia a la clase de objeto o función constructora para una instancia de objeto determinada.	Object
		container : IMediaContainer [solo lectura] The media container that this element uses.	MediaElement
		currentFPS : Number [solo lectura] 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> [solo lectura] 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> [solo lectura] A Vector of MediaTraitType values representing the trait types on this media element.	MediaElement

Propiedades protegidas

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	Propiedad		Definido por
		loader : LoaderBase The LoaderBase used by this element to load resources.	LoadableElementBase

Métodos públicos

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	Método		Definido por
		VideoElement(resource:MediaResourceBase = null, loader:NetLoader = null) Constructor.	VideoElement
		addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void Registra un objeto de detector de eventos con un objeto EventDispatcher, de modo que el detector reciba la notificación de un evento.	EventDispatcher
		addMetadata(namespaceURL:String, metadata:Metadata):void Adds a Metadata object to this MediaElement under the specified namespace URL.	MediaElement
		dispatchEvent(event:Event):Boolean Distribuye un evento en el flujo del evento.	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 Comprueba si el objeto EventDispatcher tiene detectores registrados para un tipo concreto de evento.	EventDispatcher
		hasOwnProperty(name:String):Boolean Indica si un objeto tiene definida una propiedad especificada.	Object
		hasTrait(type:String):Boolean Determines whether this media element has a media trait of the specified type.	MediaElement
		isPrototypeOf(theClass:Object):Boolean Indica si hay una instancia de la clase Object en la cadena de prototipo del objeto especificado como parámetro.	Object
		propertyIsEnumerable(name:String):Boolean Indica si existe la propiedad especificada y si es enumerable.	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Elimina un detector del objeto EventDispatcher.	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 Establece la disponibilidad de una propiedad dinámica para operaciones de bucle.	Object
		toLocaleString():String Devuelve la representación de cadena de este objeto, con formato según las convenciones específicas de configuración regional.	Object
		toString():String Devuelve la representación de cadena del objeto especificado.	Object
		valueOf():Object Devuelve el valor simple del objeto especificado.	Object
		willTrigger(type:String):Boolean Comprueba si hay registrado un detector de eventos con este objeto EventDispatcher o con cualquiera de sus ascendientes para el tipo de evento concreto.	EventDispatcher

Métodos protegidos

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	Método		Definido por
		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

Eventos

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	Resumen	Definido por
activate	[evento broadcast] Se distribuye cuando Flash Player o AIR pasan a estar activos.	EventDispatcher
containerChange	Dispatched when the element's container property changed.	MediaElement
deactivate	[evento broadcast] Se distribuye cuando Flash Player o de AIR pasan a estar inactivos.	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

Información sobre constructores

Ejemplos Cómo utilizar este ejemplo

VideoElementExample.as

package
{
    import flash.display.Sprite;
    import flash.display.StageAlign;
    import flash.display.StageScaleMode;
    
    import org.osmf.elements.VideoElement;
    import org.osmf.media.MediaPlayer;
    import org.osmf.media.MediaPlayerSprite;
    import org.osmf.media.URLResource;
    import org.osmf.net.DynamicStreamingItem;
    import org.osmf.net.DynamicStreamingResource;
    
    public class VideoElementExample extends Sprite
    {
        public function VideoElementExample()
        {
            super();
            
            stage.scaleMode = StageScaleMode.NO_SCALE;
            stage.align = StageAlign.TOP_LEFT;
            
            var mediaPlayerSprite:MediaPlayerSprite = new MediaPlayerSprite();
            var videoElement:VideoElement = new VideoElement();
            var dynResource:DynamicStreamingResource = new DynamicStreamingResource("rtmp://cp67126.edgefcs.net/ondemand");
            
            dynResource.streamItems = Vector.<DynamicStreamingItem>(
                [     new DynamicStreamingItem("mp4:mediapm/ovp/content/demo/video/elephants_dream/elephants_dream_768x428_24.0fps_408kbps.mp4", 408, 768, 428)
                    , new DynamicStreamingItem("mp4:mediapm/ovp/content/demo/video/elephants_dream/elephants_dream_768x428_24.0fps_608kbps.mp4", 608, 768, 428)
                    , new DynamicStreamingItem("mp4:mediapm/ovp/content/demo/video/elephants_dream/elephants_dream_1024x522_24.0fps_908kbps.mp4", 908, 1024, 522)
                    , new DynamicStreamingItem("mp4:mediapm/ovp/content/demo/video/elephants_dream/elephants_dream_1024x522_24.0fps_1308kbps.mp4", 1308, 1024, 522)
                    , new DynamicStreamingItem("mp4:mediapm/ovp/content/demo/video/elephants_dream/elephants_dream_1280x720_24.0fps_1708kbps.mp4", 1708, 1280, 720)
                ]);
            
            videoElement.resource = dynResource;
            
            addChild(mediaPlayerSprite);
            mediaPlayerSprite.media = videoElement;    
        }    
    }
}

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VideoElement - AS3 OSMF

Paquetesx

Elementos del lenguaje

Apéndices

Paquete org.osmf.elements

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

	`loader:NetLoader` (default = `null`) — NetLoader used to load the video. If null, the appropriate NetLoader will be created based on the resource type.