DefaultHTTPStreamingSwitchManager

Paquete	org.osmf.net.httpstreaming
Clase	public class DefaultHTTPStreamingSwitchManager
Herencia	DefaultHTTPStreamingSwitchManager RuleSwitchManagerBase NetStreamSwitchManagerBase EventDispatcher Object

Versión del lenguaje:

ActionScript 3.0

Versión de producto:

OSMF 2.0

Versiones de motor de ejecución:

Flash Player 10, AIR 1.5

Default implementation of SwitchManagerBase

Elementos de API relacionados

org.osmf.net.abr.MetricBase
org.osmf.net.abr.RuleBase

Propiedades públicas

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	Propiedad		Definido por
		actualIndex : int [solo lectura] The index of the currently downloading quality level	RuleSwitchManagerBase
		autoSwitch : Boolean [override]	RuleSwitchManagerBase
		climbFactor : Number A factor to be applied when switching up.	DefaultHTTPStreamingSwitchManager
		constructor : Object Una referencia a la clase de objeto o función constructora para una instancia de objeto determinada.	Object
		currentIndex : uint [override] [solo lectura]	RuleSwitchManagerBase
		emergencyRules : Vector.<RuleBase> [solo lectura] Array of normal rules to be used in the algorithm.	RuleSwitchManagerBase
		maxAllowedIndex : int The highest stream index that the switching manager is allowed to switch to.	NetStreamSwitchManagerBase
		maxDownSwitchLimit : int The maximum difference between the indices of the old and new quality level when switching down.	DefaultHTTPStreamingSwitchManager
		maxReliabilityRecordSize : uint The maximum length of the reliability record (how many switches to remember)	DefaultHTTPStreamingSwitchManager
		maxUpSwitchLimit : int The maximum difference between the indices of the old and new quality level when switching up.	DefaultHTTPStreamingSwitchManager
		metricRepository : MetricRepository [solo lectura] The metric repository responsible with providing the metrics	RuleSwitchManagerBase
		minReliability : Number The minimum reliability for a quality level to be used.	DefaultHTTPStreamingSwitchManager
		minReliabilityRecordSize : uint The minimum length of the reliability record below which reliability is not an issue	DefaultHTTPStreamingSwitchManager
		normalRules : Vector.<RuleBase> [solo lectura] Array of normal rules to be used in the algorithm.	DefaultHTTPStreamingSwitchManager
		normalRuleWeights : Vector.<Number> The weights of the normal rules (their importance in the algorithm). Valid values must obey the following rules: same number of weights as there are rules all rules must be equal or greater than zero at least one weight must be non-zero	DefaultHTTPStreamingSwitchManager

Propiedades protegidas

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	Propiedad		Definido por
		_autoSwitch : Boolean	NetStreamSwitchManagerBase
		_maxAllowedIndex : int	NetStreamSwitchManagerBase

Métodos públicos

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	Método		Definido por
		DefaultHTTPStreamingSwitchManager(notifier:EventDispatcher, switcher:NetStreamSwitcher, metricRepository:MetricRepository, emergencyRules:Vector.<RuleBase> = null, autoSwitch:Boolean = true, normalRules:Vector.<RuleBase> = null, normalRuleWeights:Vector.<Number> = null, minReliability:Number = 0.85, minReliabilityRecordSize:uint = 5, maxReliabilityRecordSize:uint = 30, climbFactor:Number = 0.9, maxUpSwitchLimit:int = 1, maxDownSwitchLimit:int = 2) Constructor.	DefaultHTTPStreamingSwitchManager
		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
		dispatchEvent(event:Event):Boolean Distribuye un evento en el flujo del evento.	EventDispatcher
		getCurrentReliability(index:uint):Number The current reliability of the specified index.	DefaultHTTPStreamingSwitchManager
		getNewEmergencyIndex(maxBitrate:Number):uint [override] Returns an index that satisfies the maxBitrate constraint	DefaultHTTPStreamingSwitchManager
		getNewIndex():uint [override] Computes the necessary rules and metrics and determines the index to switch to.	DefaultHTTPStreamingSwitchManager
		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
		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
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Establece la disponibilidad de una propiedad dinámica para operaciones de bucle.	Object
		switchTo(index:int):void [override]	RuleSwitchManagerBase
		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

	Método		Definido por
		getMaxIndex(maxBitrate:Number, emergencyFlag:Boolean = false):uint Determines maximum available index whose declared bitrate is smaller than maxBitrate.	DefaultHTTPStreamingSwitchManager
		isReliable(index:uint):Boolean Determines whether an index is reliable. This is achieved by comparing the index's reliability with the minimumReliability	DefaultHTTPStreamingSwitchManager
		setNormalRules(value:Vector.<RuleBase>):void Array of normal rules to be used in the algorithm.	DefaultHTTPStreamingSwitchManager

Eventos

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	Evento		Resumen	Definido por
		activate	[evento broadcast] Se distribuye cuando Flash Player o AIR pasan a estar activos.	EventDispatcher
		deactivate	[evento broadcast] Se distribuye cuando Flash Player o de AIR pasan a estar inactivos.	EventDispatcher

Información sobre propiedades

Información sobre constructores

Información sobre métodos

getNewEmergencyIndex

()

método

override public function getNewEmergencyIndex(maxBitrate:Number):uint

Returns an index that satisfies the maxBitrate constraint

Parámetros

maxBitrate:Number

Valor devuelto

uint

getNewIndex

()

método

override public function getNewIndex():uint

Computes the necessary rules and metrics and determines the index to switch to. The index must be a valid one (it can be higher than maxAllowedIndex, but it should be a real index that is available)

Valor devuelto

uint

Avisos legales | Política de privacidad en línea

	`notifier:EventDispatcher` — An object that dispatches the HTTPStreamingEvent.RUN_ALGORITHM event

	`switcher:NetStreamSwitcher` — The NetStreamSwitcher to use for switching

	`metricRepository:MetricRepository` — The repository responsible with providing metrics

	`emergencyRules:Vector.<RuleBase>` (default = `null`) — Array of rules to be used in the algorithm. An emergency rule can only recommend lower bitrates than the current one.

	`autoSwitch:Boolean` (default = `true`) — Flag deciding whether autoSwitch should be enabled

	`normalRules:Vector.<RuleBase>` (default = `null`) — Array of normal rules to be used in the algorithm. A normal rule can recommend both lower and higher bitrates than the current one.

	`normalRuleWeights:Vector.<Number>` (default = `null`) — The weights of the normal rules (their importance in the algorithm)

	`minReliability:Number` (default = `0.85`) — The minimum reliability for a quality level to be used

	`minReliabilityRecordSize:uint` (default = `5`) — The maximum length of the reliability record (how many switches to remember)

	`maxReliabilityRecordSize:uint` (default = `30`) — The minimum length of the reliability record below which reliability is not an issue

	`climbFactor:Number` (default = `0.9`) — A factor to be applied when switching up. For example: currently playing 300kbps; new ideal bitrate = 1000kbps This means that: max bitrate = 300 + climbFactor x (1000 - 300)

	`maxUpSwitchLimit:int` (default = `1`) — The maximum difference between the indices of the old and new quality level when switching up. Set this to -1 to disable the constraint. This works in conjunction with the reliability constraint. If no reliable stream is available inside the maxUpSwitchLimit, no switch will be performed.

	`maxDownSwitchLimit:int` (default = `2`) — The maximum difference between the indices of the old and new quality level when switching down. Set this to -1 value to disable the constraint. This works in conjunction with the reliability constraint. If no reliable stream is available inside the maxDownSwitchLimit, no switch will be performed. The maxDownSwitchLimit constraint does not apply to emergency switches.

DefaultHTTPStreamingSwitchManager - AS3 OSMF

Paquetesx

Elementos del lenguaje

Apéndices

Paquete org.osmf.net.httpstreaming

climbFactor

maxDownSwitchLimit

maxReliabilityRecordSize

maxUpSwitchLimit

minReliability

minReliabilityRecordSize

normalRules

normalRuleWeights

getCurrentReliability

getMaxIndex

getNewEmergencyIndex

getNewIndex

isReliable

setNormalRules

	`maxBitrate:Number` — The maximum bitrate to which the index must comply

	`emergencyFlag:Boolean` (default = `false`)