DynamicStreamingResource

Pakket	org.osmf.net
Klasse	public class DynamicStreamingResource
Overerving	DynamicStreamingResource StreamingURLResource URLResource MediaResourceBase Object

Taalversie:

ActionScript 3.0

Productversie:

OSMF 1.0

Runtimeversies:

Flash Player 10, AIR 1.5

DynamicStreamingResource encapsulates multiple representations of a piece of media, such that the player application can dynamically switch from one representation to another. Typically (though not always), each representation is encoded at a different bitrate, and the player application switches between representations based on changes to the client's available bandwidth.

This class provides an object representation of a dynamic streaming resource without any knowledge or assumption of any file format, such as SMIL, Media RSS, F4M, etc.

Bekijk de voorbeelden

Openbare eigenschappen

Overerfde openbare eigenschappen verbergen

Overerfde openbare eigenschappen weergeven

	Eigenschap		Gedefinieerd door
		alternativeAudioStreamItems : Vector.<StreamingItem> Vector containing all alternative audio items associated with the current streaming resource.	StreamingURLResource
		clipEndTime : Number Optional end time of the streaming resource.	StreamingURLResource
		clipStartTime : Number Optional start time of the streaming resource.	StreamingURLResource
		connectionArguments : Vector.<Object> Optional set of arguments that will be supplied when making a connection to the source of the stream.	StreamingURLResource
		constructor : Object Verwijzing naar het klasseobject of de constructorfunctie van een bepaalde objectinstantie.	Object
		drmContentData : ByteArray Content metadata for DRM-encrypted content.	StreamingURLResource
		host : String [alleen-lezen] A URL representing the host of the dynamic streaming resource.	DynamicStreamingResource
		initialIndex : int The preferred starting index.	DynamicStreamingResource
		mediaType : String The MediaType, if any, of this resource.	MediaResourceBase
		metadataNamespaceURLs : Vector.<String> [alleen-lezen] A Vector containing the namespace URLs for all Metadata objects within this resource.	MediaResourceBase
		mimeType : String The MIME type, if any, of this resource.	MediaResourceBase
		streamItems : Vector.<DynamicStreamingItem> Vector of DynamicStreamingItems.	DynamicStreamingResource
		streamType : String The StreamType for this resource.	StreamingURLResource
		url : String [alleen-lezen] The URL of the resource.	URLResource
		urlIncludesFMSApplicationInstance : Boolean Indicates, for RTMP streaming URLs, whether the URL includes the FMS application instance or not.	StreamingURLResource

Openbare methoden

Overerfde openbare methoden verbergen

Overerfde openbare methoden weergeven

	Methode		Gedefinieerd door
		DynamicStreamingResource(host:String, streamType:String = null) Constructor.	DynamicStreamingResource
		addMetadataValue(namespaceURL:String, value:Object):void Adds a metadata value to this resource.	MediaResourceBase
		getMetadataValue(namespaceURL:String):Object Retrieves a metadata value from this resource.	MediaResourceBase
		hasOwnProperty(name:String):Boolean Geeft aan of voor een object een opgegeven eigenschap is gedefinieerd.	Object
		isPrototypeOf(theClass:Object):Boolean Geeft aan of een instantie van de klasse Object zich in de prototypeketen van het object bevindt dat als parameter is opgegeven.	Object
		propertyIsEnumerable(name:String):Boolean Geeft aan of de opgegeven eigenschap bestaat en kan worden opgesomd.	Object
		removeMetadataValue(namespaceURL:String):Object Removes a metadata value from this resource.	MediaResourceBase
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Stelt de beschikbaarheid van een dynamische eigenschap voor lusbewerkingen in.	Object
		toLocaleString():String Geeft de tekenreeksweergave van dit object weer, geformatteerd volgens de locatiespecifieke conventies.	Object
		toString():String Retourneert een tekenreeksrepresentatie van het opgegeven object.	Object
		valueOf():Object Retourneert de primitieve waarde van het opgegeven object.	Object

Eigenschapdetails

host	eigenschap

host:String [alleen-lezen]

Taalversie:

ActionScript 3.0

Productversie:

OSMF 1.0

Runtimeversies:

Flash Player 10, AIR 1.5

A URL representing the host of the dynamic streaming resource.

Implementatie
public function get host():String

initialIndex

eigenschap

initialIndex:int

Taalversie:

ActionScript 3.0

Productversie:

OSMF 1.0

Runtimeversies:

Flash Player 10, AIR 1.5

The preferred starting index.

Implementatie
public function get initialIndex():int
public function set initialIndex(value:int):void

Gegenereerde uitzondering

RangeError — If the index is out of range. From OSMF 2.0 upwards you can set the initialIndex through a metadata as well, using the RESOURCE_INITIAL_INDEX key. This metadata can be added to any media resource, such as an URLResource, and it will be used to set the initial index when the DynamicStreamingResource is created. For example, having resource as a URLResource you can set the initialIndex in the following way: resource.addMetadata(MetadataNamespaces.RESOURCE_INITIAL_INDEX, 1); The RESOURCE_INITIAL_INDEX metadata accepts integers, and will adjust the value to fit into the streamItems range. This means that if the specified value is negative it will be adjusted to 0, and if it is larger than the available streamItems, then it will be adjusted to the greatest streamItem index.

streamItems

eigenschap

streamItems:Vector.<DynamicStreamingItem>

Taalversie:

ActionScript 3.0

Productversie:

OSMF 1.0

Runtimeversies:

Flash Player 10, AIR 1.5

Vector of DynamicStreamingItems. Each item represents a different bitrate stream.

Implementatie
public function get streamItems():Vector.<DynamicStreamingItem>
public function set streamItems(value:Vector.<DynamicStreamingItem>):void

Constructordetails

()

Constructor

public function DynamicStreamingResource(host:String, streamType:String = null)

Taalversie:

ActionScript 3.0

Productversie:

OSMF 1.0

Runtimeversies:

Flash Player 10, AIR 1.5

Constructor.

Parameters

	`host:String` — A URL representing the host of the dynamic streaming resource.

	`streamType:String` (default = `null`) — The type of the stream. If null, defaults to StreamType.RECORDED.

Voorbeelden Hoe dit voorbeeld te gebruiken

DynamicStreamingResourceExample.as

package
{
    import flash.display.Sprite;
    import flash.display.StageAlign;
    import flash.display.StageScaleMode;
    
    import org.osmf.elements.VideoElement;
    import org.osmf.media.MediaPlayerSprite;
    import org.osmf.net.DynamicStreamingItem;
    import org.osmf.net.DynamicStreamingResource;
    
    public class DynamicStreamingResourceExample extends Sprite
    {
        public function DynamicStreamingResourceExample()
        {
            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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DynamicStreamingResource - AS3 OSMF

Klassen x

host

initialIndex

streamItems

DynamicStreamingResource