| Pacchetto | org.osmf.elements |
| Classe | public class LightweightVideoElement |
| Ereditarietà | LightweightVideoElement  LoadableElementBase MediaElement EventDispatcher Object |
| Sottoclassi | VideoElement |
| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | OSMF 1.0 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
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
mediaproperty. - Control the media using the MediaPlayer's methods, properties, and events.
- When done with the LightweightVideoElement, set the MediaPlayer's
mediaproperty 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).
Elementi API correlati
org.osmf.media.URLResource
org.osmf.media.MediaElement
org.osmf.media.MediaPlayer
org.osmf.net.NetLoader
Nascondi proprietà pubbliche ereditate
Mostra proprietà pubbliche ereditate| Proprietà | Definito da | ||
|---|---|---|---|
| client : NetClient [sola lettura]
The NetClient used by this object's NetStream. | LightweightVideoElement | ||
 | constructor : Object
Un riferimento all'oggetto classe o alla funzione di costruzione per una determinata istanza di oggetto. | Object | |
| container : IMediaContainer [sola lettura]
The media container that this element uses. | MediaElement | |
| currentFPS : Number [sola lettura]
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> [sola lettura]
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> [sola lettura]
A Vector of MediaTraitType values representing the trait types on this
media element. | MediaElement | |
| Metodo | Definito da | ||
|---|---|---|---|
Constructor. | LightweightVideoElement | ||
| addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registra un oggetto listener di eventi con un oggetto EventDispatcher, in modo che il listener riceva la notifica di un evento. | EventDispatcher | |
|
Adds a Metadata object to this MediaElement under the specified namespace URL. | MediaElement | |
|
Invia un evento nel flusso di eventi. | EventDispatcher | |
|
Returns the Metadata object that is stored under this MediaElement with
the specified namespace URL. | MediaElement | |
|
Returns the media trait of the specified type. | MediaElement | |
|
Verifica se per l'oggetto EventDispatcher sono presenti listener registrati per un tipo specifico di evento. | EventDispatcher | |
|
Indica se per un oggetto è definita una proprietà specifica. | Object | |
|
Determines whether this media element has a media trait of the
specified type. | MediaElement | |
|
Indica se un'istanza della classe Object si trova nella catena di prototipi dell'oggetto specificato come parametro. | Object | |
|
Indica se la proprietà specificata esiste ed è enumerabile. | Object | |
|
Rimuove un listener dall'oggetto EventDispatcher. | EventDispatcher | |
|
Removes the Metadata object that was stored under this MediaElement with
the specified namespace URL. | MediaElement | |
|
Imposta la disponibilità di una proprietà dinamica per le operazioni cicliche. | Object | |
|
Restituisce la rappresentazione in formato stringa di questo oggetto, formattato in base alle convenzioni specifiche per le versioni localizzate. | Object | |
|
Restituisce la rappresentazione in formato stringa dell'oggetto specificato. | Object | |
|
Restituisce il valore di base dell'oggetto specificato. | Object | |
|
Verifica se un listener di eventi è registrato con questo oggetto EventDispatcher o qualsiasi suo antenato per il tipo di evento specificato. | EventDispatcher | |
client | proprietà |
client:NetClient [sola lettura] | Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | OSMF 1.0 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
The NetClient used by this object's NetStream. Will be null until this object has been loaded (as indicated by its LoadTrait entering the READY state).
Implementazione
public function get client():NetClientcurrentFPS | proprietà |
deblocking | proprietà |
deblocking:int| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | OSMF 1.0 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
Indicates the type of filter applied to decoded video as part of post-processing. The default value is 0, which lets the video compressor apply a deblocking filter as needed. See flash.media.Video for more information on deblocking modes.
Implementazione
public function get deblocking():int public function set deblocking(value:int):voidElementi API correlati
defaultDuration | proprietà |
defaultDuration:Number| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | OSMF 1.0 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
Defines the duration that the element's TimeTrait will expose until the element's content is loaded. Setting this property to a positive value results in the element becoming temporal. Any other value will remove the element's TimeTrait, unless the loaded content is exposing a duration.
Implementazione
public function get defaultDuration():Number public function set defaultDuration(value:Number):voidsmoothing | proprietà |
smoothing:Boolean| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | OSMF 1.0 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
Specifies whether the video should be smoothed (interpolated) when it is scaled. For smoothing to work, the runtime must be in high-quality mode (the default). The default value is false (no smoothing). Set this property to true to take advantage of mipmapping image optimization.
Implementazione
public function get smoothing():Boolean public function set smoothing(value:Boolean):voidElementi API correlati
LightweightVideoElement | () | Funzione di costruzione |
public function LightweightVideoElement(resource:MediaResourceBase = null, loader:NetLoader = null)| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | OSMF 1.0 |
| Versioni runtime: | Flash Player 10, AIR 1.5 |
Constructor.
Parametriresource:MediaResourceBase (default = null) | |
loader:NetLoader (default = null) |
Genera
ArgumentError — If resource is not an URLResource.
|
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;
}
}
}
Tue Jun 12 2018, 02:44 PM Z