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Current Path : /hermes/sb_web/b2920/silverspurcommunity.com/src/bitfade/media/streams/
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Current File : //hermes/sb_web/b2920/silverspurcommunity.com/src/bitfade/media/streams/stream.as
/*

	This base class hold stream properties
	it has to be extended to implements defined (empty) methods

*/
package bitfade.media.streams {
	
	import flash.display.*
	import flash.events.*
	import flash.utils.getTimer
	
	import bitfade.core.IDestroyable
	import bitfade.utils.gc
	
	public class stream extends EventDispatcher implements bitfade.core.IDestroyable {
	
		// size
		public var width:uint
		public var height:uint
		
		// resource url
		public var resource:String
		
		// stream properties
		public var duration:Number = 0
		public var fps:Number = 0
		
		// buffer properties
		public var buffering:Boolean = false;
		public var bufferTimeMax:uint = 5;
		
		// current requested seek position
		protected var seekPos:Number = 0
		
		// playback properties
		public var paused:Boolean = false;
		public var started:Boolean = false;
		public var stopped:Boolean = false;
		public var playStarted:Boolean = false;
		public var playedStreams:uint = 0;
		
		protected var netInited:Boolean = false
		
		// last stream played time
		protected var lastPlayedTime:Number = 0;
		
		// last fired event value
		protected var lastEventValue:Object = {}
		
		// constructor
		public function stream() {
			super()
		}
		
		/*
		
			empty methods that needs to be overridden by extenders
			refer to video.as for explanation
		
		*/
		
		public function get ready():Boolean {
			return false
		}
		
		public function load(url:String,startPaused:Boolean = false,startBuffering:Boolean = true):void {}
		
		public function close():void {}
		
		public function pause():Boolean { return false }
		
		public function resume():Boolean { return false }
		
		public function play():Boolean { return resume() }
		
		// restart playback
		public function restart():void {
			playStarted = false
			stopped = false
			seek(0)
		}
		
		 // stop playback
		public function stop():void {
			stopped = true;
			lastPlayedTime = 0
			pause()
			if (!lastEventValue[streamEvent.STOP]) fireEvent(streamEvent.STOP,getTimer(),true)
		}
		
		public function seek(pos:Number):Number { return 0 }
		
		public function volume(vol:Number):void {}
		
		protected function reset():void {
			buffering = false
			seekPos = lastPlayedTime = 0
			playStarted = started = stopped = false
			lastEventValue = new Array()
			if (playedStreams > 0) fireEvent(streamEvent.CLOSE,0)
		}
		
		public function get bytesLoaded():uint {
			return 0
		}
		
		public function get bytesTotal():uint {
			return 1
		}
		
		public function get loaded():Number {
			return bytesLoaded/bytesTotal
		}
		
		public function get time():Number {
			return 0
		}
		
		public function get position():Number{
			return uint(1000*time/duration+0.5)/1000
		}
		
		// this is used to fire events
        protected function fireEvent(type:String,value:Number = 0,filterDuplicates:Boolean = false):void {
        	if (!netInited) return
        	if (filterDuplicates) {
        		// if we have fire same event type with same value, do nothing
        		if (lastEventValue[type] == value) return
        		lastEventValue[type] = value
        	}
        	// fire event
       		dispatchEvent(new streamEvent(type,value));
        }
        
        // destructor
        public function destroy():void {
        	reset()
        	gc.destroy(this)
        }
		
	}


}
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