DynamicStreamingResource

套件	org.osmf.net
類別	public class DynamicStreamingResource
繼承	DynamicStreamingResource StreamingURLResource URLResource MediaResourceBase Object

語言版本:

ActionScript 3.0

產品版本:

OSMF 1.0

執行階段版本:

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.

檢視範例

公用屬性

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	屬性		定義自
		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 類別物件的參照或是特定物件實體的建構函數。	Object
		drmContentData : ByteArray Content metadata for DRM-encrypted content.	StreamingURLResource
		host : String [唯讀] 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> [唯讀] 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 [唯讀] The URL of the resource.	URLResource
		urlIncludesFMSApplicationInstance : Boolean Indicates, for RTMP streaming URLs, whether the URL includes the FMS application instance or not.	StreamingURLResource

公用方法

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	方法		定義自
		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 指出物件是否有已定義的指定屬性。	Object
		isPrototypeOf(theClass:Object):Boolean 指出 Object 類別的實體是否位於指定為參數的物件原型鏈中。	Object
		propertyIsEnumerable(name:String):Boolean 指出指定的屬性是否存在，以及是否可列舉。	Object
		removeMetadataValue(namespaceURL:String):Object Removes a metadata value from this resource.	MediaResourceBase
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void 為迴圈作業設定動態屬性的可用性。	Object
		toLocaleString():String 傳回代表此物件的字串，根據地區特定慣例進行格式化。	Object
		toString():String 會傳回指定之物件的字串形式。	Object
		valueOf():Object 會傳回指定之物件的基本值。	Object

屬性詳細資訊

建構函式詳細資料

範例如何使用本範例

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

套件x

語言元素

附錄

套件 org.osmf.net

host

initialIndex

streamItems

	`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.