DefaultHTTPStreamingSwitchManager

패키지	org.osmf.net.httpstreaming
클래스	public class DefaultHTTPStreamingSwitchManager
상속	DefaultHTTPStreamingSwitchManager RuleSwitchManagerBase NetStreamSwitchManagerBase EventDispatcher Object

언어 버전:

ActionScript 3.0

제품 버전:

OSMF 2.0

런타임 버전:

Flash Player 10, AIR 1.5

Default implementation of SwitchManagerBase

관련 API 요소

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

공용 속성

상속되는 공용 속성 숨기기

상속되는 공용 속성 표시

	속성		정의 주체
		actualIndex : int [읽기 전용] The index of the currently downloading quality level	RuleSwitchManagerBase
		autoSwitch : Boolean [재정의]	RuleSwitchManagerBase
		climbFactor : Number A factor to be applied when switching up.	DefaultHTTPStreamingSwitchManager
		constructor : Object 지정된 객체 인스턴스의 클래스 객체 또는 생성자 함수에 대한 참조입니다.	Object
		currentIndex : uint [재정의] [읽기 전용]	RuleSwitchManagerBase
		emergencyRules : Vector.<RuleBase> [읽기 전용] 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 [읽기 전용] 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> [읽기 전용] 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

보호 속성

상속되는 보호 속성 숨기기

상속되는 보호 속성 표시

	속성		정의 주체
		_autoSwitch : Boolean	NetStreamSwitchManagerBase
		_maxAllowedIndex : int	NetStreamSwitchManagerBase

공용 메서드

상속되는 공용 메서드 숨기기

상속되는 공용 메서드 표시

	메서드		정의 주체
		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 리스너에서 이벤트 알림을 받을 수 있도록 EventDispatcher 객체에 이벤트 리스너 객체를 등록합니다.	EventDispatcher
		dispatchEvent(event:Event):Boolean 이벤트를 이벤트 흐름으로 전달합니다.	EventDispatcher
		getCurrentReliability(index:uint):Number The current reliability of the specified index.	DefaultHTTPStreamingSwitchManager
		getNewEmergencyIndex(maxBitrate:Number):uint [재정의] Returns an index that satisfies the maxBitrate constraint	DefaultHTTPStreamingSwitchManager
		getNewIndex():uint [재정의] Computes the necessary rules and metrics and determines the index to switch to.	DefaultHTTPStreamingSwitchManager
		hasEventListener(type:String):Boolean EventDispatcher 객체에 특정 유형의 이벤트에 대한 리스너가 등록되어 있는지 여부를 확인합니다.	EventDispatcher
		hasOwnProperty(name:String):Boolean 지정된 속성이 객체에 정의되어 있는지 여부를 나타냅니다.	Object
		isPrototypeOf(theClass:Object):Boolean Object 클래스의 인스턴스가 매개 변수로 지정된 객체의 프로토타입 체인에 있는지 여부를 나타냅니다.	Object
		propertyIsEnumerable(name:String):Boolean 지정된 속성이 존재하고 열거 가능한지 여부를 나타냅니다.	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void EventDispatcher 객체에서 리스너를 제거합니다.	EventDispatcher
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void 루프 작업에서 동적 속성을 사용할 수 있는지 여부를 설정합니다.	Object
		switchTo(index:int):void [재정의]	RuleSwitchManagerBase
		toLocaleString():String 로캘별 규칙에 따라 서식이 지정된 이 객체의 문자열 표현을 반환합니다.	Object
		toString():String 지정된 객체의 문자열 표현을 반환합니다.	Object
		valueOf():Object 지정된 객체의 프리미티브 값을 반환합니다.	Object
		willTrigger(type:String):Boolean 이 EventDispatcher 객체 또는 조상 객체에 지정한 이벤트 유형에 대한 이벤트 리스너가 등록되어 있는지 여부를 확인합니다.	EventDispatcher

보호 메서드

	메서드		정의 주체
		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

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	이벤트		요약	정의 주체
		activate	[브로드캐스트 이벤트] Flash Player 또는 AIR 응용 프로그램이 운영 체제 포커스를 얻어 활성화될 때 전달됩니다.	EventDispatcher
		deactivate	[브로드캐스트 이벤트] Flash Player 또는 AIR 응용 프로그램이 운영 체제 포커스를 잃고 비활성화될 때 전달됩니다.	EventDispatcher

속성 세부 정보

climbFactor

속성

climbFactor:Number

언어 버전:

ActionScript 3.0

제품 버전:

OSMF 2.0

런타임 버전:

Flash Player 10, AIR 1.5

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)

It must be equal or greater than 0

구현
public function get climbFactor():Number
public function set climbFactor(value:Number):void

오류

ArgumentError — If it is set to a negative value

maxDownSwitchLimit

속성

maxDownSwitchLimit:int

언어 버전:

ActionScript 3.0

제품 버전:

OSMF 2.0

런타임 버전:

Flash Player 10, AIR 1.5

The maximum difference between the indices of the old and new quality level when switching down. Set this to a -1 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.

구현
public function get maxDownSwitchLimit():int
public function set maxDownSwitchLimit(value:int):void

maxReliabilityRecordSize

속성

maxReliabilityRecordSize:uint

언어 버전:

ActionScript 3.0

제품 버전:

OSMF 2.0

런타임 버전:

Flash Player 10, AIR 1.5

The maximum length of the reliability record (how many switches to remember)

구현
public function get maxReliabilityRecordSize():uint
public function set maxReliabilityRecordSize(value:uint):void

maxUpSwitchLimit

속성

maxUpSwitchLimit:int

언어 버전:

ActionScript 3.0

제품 버전:

OSMF 2.0

런타임 버전:

Flash Player 10, AIR 1.5

The maximum difference between the indices of the old and new quality level when switching up. Set this to a -1 to disable the constraint.

This works in conjunction with the reliability constraint. If no reliable stream is available inside the maxUpSwitchLlimit, no switch will be performed.

구현
public function get maxUpSwitchLimit():int
public function set maxUpSwitchLimit(value:int):void

minReliability

속성

minReliability:Number

언어 버전:

ActionScript 3.0

제품 버전:

OSMF 2.0

런타임 버전:

Flash Player 10, AIR 1.5

The minimum reliability for a quality level to be used. This value must be a number in the [0-1] interval (inclusive)

구현
public function get minReliability():Number
public function set minReliability(value:Number):void

오류

ArgumentError — If it is set to an invalid value

minReliabilityRecordSize

속성

minReliabilityRecordSize:uint

언어 버전:

ActionScript 3.0

제품 버전:

OSMF 2.0

런타임 버전:

Flash Player 10, AIR 1.5

The minimum length of the reliability record below which reliability is not an issue

구현
public function get minReliabilityRecordSize():uint
public function set minReliabilityRecordSize(value:uint):void

normalRules

속성

normalRules:Vector.<RuleBase> [읽기 전용]

언어 버전:

ActionScript 3.0

제품 버전:

OSMF 2.0

런타임 버전:

Flash Player 10, AIR 1.5

Array of normal rules to be used in the algorithm. A normal rule can recommend both lower and higher bitrates than the current one

구현
public function get normalRules():Vector.<RuleBase>

normalRuleWeights

속성

normalRuleWeights:Vector.<Number>

언어 버전:

ActionScript 3.0

제품 버전:

OSMF 2.0

런타임 버전:

Flash Player 10, AIR 1.5

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

구현
public function get normalRuleWeights():Vector.<Number>
public function set normalRuleWeights(value:Vector.<Number>):void

오류

ArgumentError — If the weights are not valid, by breaking at least one of the above criteria

생성자 세부 정보

()

생성자

public function 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)

언어 버전:

ActionScript 3.0

제품 버전:

OSMF 2.0

런타임 버전:

Flash Player 10, AIR 1.5

Constructor.

매개 변수

	`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.

메서드 세부 정보

getCurrentReliability

()

메서드

public function getCurrentReliability(index:uint):Number

언어 버전:

ActionScript 3.0

제품 버전:

OSMF 2.0

런타임 버전:

Flash Player 10, AIR 1.5

The current reliability of the specified index.

매개 변수

index:uint

반환값

Number — A number between 0 (most unreliable) and 1 (most reliable)

getMaxIndex

()

메서드

protected function getMaxIndex(maxBitrate:Number, emergencyFlag:Boolean = false):uint

언어 버전:

ActionScript 3.0

제품 버전:

OSMF 2.0

런타임 버전:

Flash Player 10, AIR 1.5

Determines maximum available index whose declared bitrate is smaller than maxBitrate. Only reliable indices (indices that pass the isReliable() function) are taken into consideration.

매개 변수

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

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

반환값

uint — The index satisfying the aforementioned condition

관련 API 요소

isReliable()

getNewEmergencyIndex

()

메서드

override public function getNewEmergencyIndex(maxBitrate:Number):uint

Returns an index that satisfies the maxBitrate constraint

매개 변수

maxBitrate:Number

반환값

uint

getNewIndex

()

메서드

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)

반환값

uint

isReliable

()

메서드

protected function isReliable(index:uint):Boolean

언어 버전:

ActionScript 3.0

제품 버전:

OSMF 2.0

런타임 버전:

Flash Player 10, AIR 1.5

Determines whether an index is reliable. This is achieved by comparing the index's reliability with the minimumReliability

매개 변수

index:uint

반환값

Boolean

setNormalRules

()

메서드

protected function setNormalRules(value:Vector.<RuleBase>):void

언어 버전:

ActionScript 3.0

제품 버전:

OSMF 2.0

런타임 버전:

Flash Player 10, AIR 1.5

Array of normal rules to be used in the algorithm. A normal rule can recommend both lower and higher bitrates than the current one.

매개 변수

value:Vector.<RuleBase>

관련 API 요소

normalRules

법적 고지 사항 | 온라인 개인 정보 보호 정책

DefaultHTTPStreamingSwitchManager - AS3 OSMF

클래스 x

climbFactor

maxDownSwitchLimit

maxReliabilityRecordSize

maxUpSwitchLimit

minReliability

minReliabilityRecordSize

normalRules

normalRuleWeights