| 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 |
Elementos de API relacionados
org.osmf.net.abr.MetricBase
org.osmf.net.abr.RuleBase
org.osmf.net.abr.RuleBase
Propiedades públicas
Ocultar propiedades públicas heredadas
Mostrar propiedades públicas heredadas| 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
Métodos públicos
| 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 | |
|
Distribuye un evento en el flujo del evento. | EventDispatcher | |
The current reliability of the specified index. | DefaultHTTPStreamingSwitchManager | ||
[override]
Returns an index that satisfies the maxBitrate constraint
| DefaultHTTPStreamingSwitchManager | ||
[override]
Computes the necessary rules and metrics and determines the index to switch to. | DefaultHTTPStreamingSwitchManager | ||
|
Comprueba si el objeto EventDispatcher tiene detectores registrados para un tipo concreto de evento. | EventDispatcher | |
|
Indica si un objeto tiene definida una propiedad especificada. | Object | |
|
Indica si hay una instancia de la clase Object en la cadena de prototipo del objeto especificado como parámetro. | Object | |
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Indica si existe la propiedad especificada y si es enumerable. | Object | |
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Elimina un detector del objeto EventDispatcher. | EventDispatcher | |
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Establece la disponibilidad de una propiedad dinámica para operaciones de bucle. | Object | |
| [override] | RuleSwitchManagerBase | |
|
Devuelve la representación de cadena de este objeto, con formato según las convenciones específicas de configuración regional. | Object | |
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Devuelve la representación de cadena del objeto especificado. | Object | |
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Devuelve el valor simple del objeto especificado. | Object | |
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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 | ||
|---|---|---|---|
Determines maximum available index whose declared bitrate is smaller than maxBitrate. | DefaultHTTPStreamingSwitchManager | ||
Determines whether an index is reliable.
This is achieved by comparing the index's reliability with the minimumReliability
| DefaultHTTPStreamingSwitchManager | ||
Array of normal rules to be used in the algorithm. | DefaultHTTPStreamingSwitchManager | ||
Eventos
Información sobre propiedades
climbFactor | propiedad |
climbFactor:Number| Versión del lenguaje: | ActionScript 3.0 |
| Versión de producto: | OSMF 2.0 |
| Versiones de motor de ejecución: | 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
Implementación
public function get climbFactor():Number public function set climbFactor(value:Number):voidEmite
ArgumentError — If it is set to a negative value
|
maxDownSwitchLimit | propiedad |
maxDownSwitchLimit:int| Versión del lenguaje: | ActionScript 3.0 |
| Versión de producto: | OSMF 2.0 |
| Versiones de motor de ejecución: | 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.
Implementación
public function get maxDownSwitchLimit():int public function set maxDownSwitchLimit(value:int):voidmaxReliabilityRecordSize | propiedad |
maxReliabilityRecordSize:uint| Versión del lenguaje: | ActionScript 3.0 |
| Versión de producto: | OSMF 2.0 |
| Versiones de motor de ejecución: | Flash Player 10, AIR 1.5 |
The maximum length of the reliability record (how many switches to remember)
Implementación
public function get maxReliabilityRecordSize():uint public function set maxReliabilityRecordSize(value:uint):voidmaxUpSwitchLimit | propiedad |
maxUpSwitchLimit:int| Versión del lenguaje: | ActionScript 3.0 |
| Versión de producto: | OSMF 2.0 |
| Versiones de motor de ejecución: | 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.
Implementación
public function get maxUpSwitchLimit():int public function set maxUpSwitchLimit(value:int):voidminReliability | propiedad |
minReliability:Number| Versión del lenguaje: | ActionScript 3.0 |
| Versión de producto: | OSMF 2.0 |
| Versiones de motor de ejecución: | 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)
Implementación
public function get minReliability():Number public function set minReliability(value:Number):voidEmite
ArgumentError — If it is set to an invalid value
|
minReliabilityRecordSize | propiedad |
minReliabilityRecordSize:uint| Versión del lenguaje: | ActionScript 3.0 |
| Versión de producto: | OSMF 2.0 |
| Versiones de motor de ejecución: | Flash Player 10, AIR 1.5 |
The minimum length of the reliability record below which reliability is not an issue
Implementación
public function get minReliabilityRecordSize():uint public function set minReliabilityRecordSize(value:uint):voidnormalRules | propiedad |
normalRules:Vector.<RuleBase> [solo lectura] | Versión del lenguaje: | ActionScript 3.0 |
| Versión de producto: | OSMF 2.0 |
| Versiones de motor de ejecución: | 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
Implementación
public function get normalRules():Vector.<RuleBase>normalRuleWeights | propiedad |
normalRuleWeights:Vector.<Number>| Versión del lenguaje: | ActionScript 3.0 |
| Versión de producto: | OSMF 2.0 |
| Versiones de motor de ejecución: | 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
Implementación
public function get normalRuleWeights():Vector.<Number> public function set normalRuleWeights(value:Vector.<Number>):voidEmite
ArgumentError — If the weights are not valid,
by breaking at least one of the above criteria
|
Información sobre constructores
DefaultHTTPStreamingSwitchManager | () | Información sobre |
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)| Versión del lenguaje: | ActionScript 3.0 |
| Versión de producto: | OSMF 2.0 |
| Versiones de motor de ejecución: | Flash Player 10, AIR 1.5 |
Constructor.
Parámetrosnotifier: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) | |
autoSwitch:Boolean (default = true) | |
normalRules:Vector.<RuleBase> (default = null) | |
normalRuleWeights:Vector.<Number> (default = null) | |
minReliability:Number (default = 0.85) | |
minReliabilityRecordSize:uint (default = 5) | |
maxReliabilityRecordSize:uint (default = 30) | |
climbFactor:Number (default = 0.9) | |
maxUpSwitchLimit:int (default = 1) | |
maxDownSwitchLimit:int (default = 2) |
Información sobre métodos
getCurrentReliability | () | método |
public function getCurrentReliability(index:uint):Number| Versión del lenguaje: | ActionScript 3.0 |
| Versión de producto: | OSMF 2.0 |
| Versiones de motor de ejecución: | Flash Player 10, AIR 1.5 |
The current reliability of the specified index.
Parámetros
index:uint |
Number — A number between 0 (most unreliable) and 1 (most reliable)
|
getMaxIndex | () | método |
protected function getMaxIndex(maxBitrate:Number, emergencyFlag:Boolean = false):uint| Versión del lenguaje: | ActionScript 3.0 |
| Versión de producto: | OSMF 2.0 |
| Versiones de motor de ejecución: | 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.
Parámetros
maxBitrate:Number — The maximum bitrate to which the index must comply
| |
emergencyFlag:Boolean (default = false) |
uint — The index satisfying the aforementioned condition
|
Elementos de API relacionados
getNewEmergencyIndex | () | método |
getNewIndex | () | método |
isReliable | () | método |
protected function isReliable(index:uint):Boolean| Versión del lenguaje: | ActionScript 3.0 |
| Versión de producto: | OSMF 2.0 |
| Versiones de motor de ejecución: | Flash Player 10, AIR 1.5 |
Determines whether an index is reliable. This is achieved by comparing the index's reliability with the minimumReliability
Parámetros
index:uint |
Boolean |
Elementos de API relacionados
setNormalRules | () | método |
protected function setNormalRules(value:Vector.<RuleBase>):void| Versión del lenguaje: | ActionScript 3.0 |
| Versión de producto: | OSMF 2.0 |
| Versiones de motor de ejecución: | 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.
Parámetros
value:Vector.<RuleBase> |
Elementos de API relacionados
Tue Jun 12 2018, 02:12 PM Z