| Pakket | org.osmf.net.httpstreaming |
| Klasse | public class DefaultHTTPStreamingSwitchManager |
| Overerving | DefaultHTTPStreamingSwitchManager  RuleSwitchManagerBase NetStreamSwitchManagerBase EventDispatcher Object |
| Taalversie: | ActionScript 3.0 |
| Productversie: | OSMF 2.0 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
Verwante API-elementen
org.osmf.net.abr.MetricBase
org.osmf.net.abr.RuleBase
org.osmf.net.abr.RuleBase
Openbare eigenschappen
Overerfde openbare eigenschappen verbergen
Overerfde openbare eigenschappen weergeven| Eigenschap | Gedefinieerd door | ||
|---|---|---|---|
 | actualIndex : int [alleen-lezen]
The index of the currently downloading quality level
| RuleSwitchManagerBase | |
| autoSwitch : Boolean [overschrijven] | RuleSwitchManagerBase | |
| climbFactor : Number
A factor to be applied when switching up. | DefaultHTTPStreamingSwitchManager | ||
| constructor : Object
Verwijzing naar het klasseobject of de constructorfunctie van een bepaalde objectinstantie. | Object | |
| currentIndex : uint [overschrijven] [alleen-lezen] | RuleSwitchManagerBase | |
| emergencyRules : Vector.<RuleBase> [alleen-lezen]
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 [alleen-lezen]
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> [alleen-lezen]
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 | ||
Beschermde eigenschappen
Openbare methoden
| Methode | Gedefinieerd door | ||
|---|---|---|---|
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
Registreert een gebeurtenislistenerobject bij een object EventDispatcher, zodat de listener een melding van een gebeurtenis ontvangt. | EventDispatcher | |
|
Verzendt een gebeurtenis naar de gebeurtenisstroom. | EventDispatcher | |
The current reliability of the specified index. | DefaultHTTPStreamingSwitchManager | ||
[overschrijven]
Returns an index that satisfies the maxBitrate constraint
| DefaultHTTPStreamingSwitchManager | ||
[overschrijven]
Computes the necessary rules and metrics and determines the index to switch to. | DefaultHTTPStreamingSwitchManager | ||
|
Controleert of het object EventDispatcher listeners heeft geregistreerd voor een specifiek type gebeurtenis. | EventDispatcher | |
|
Geeft aan of voor een object een opgegeven eigenschap is gedefinieerd. | Object | |
|
Geeft aan of een instantie van de klasse Object zich in de prototypeketen van het object bevindt dat als parameter is opgegeven. | Object | |
|
Geeft aan of de opgegeven eigenschap bestaat en kan worden opgesomd. | Object | |
|
Verwijdert een listener uit het object EventDispatcher. | EventDispatcher | |
|
Stelt de beschikbaarheid van een dynamische eigenschap voor lusbewerkingen in. | Object | |
| [overschrijven] | RuleSwitchManagerBase | |
|
Geeft de tekenreeksweergave van dit object weer, geformatteerd volgens de locatiespecifieke conventies. | Object | |
|
Retourneert een tekenreeksrepresentatie van het opgegeven object. | Object | |
|
Retourneert de primitieve waarde van het opgegeven object. | Object | |
|
Controleert of een gebeurtenislistener is geregistreerd bij dit object EventDispatcher of een van de voorouders voor het opgegeven type gebeurtenis. | EventDispatcher | |
Beschermde methoden
| Methode | Gedefinieerd door | ||
|---|---|---|---|
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 | ||
Gebeurtenissen
Eigenschapdetails
climbFactor | eigenschap |
climbFactor:Number| Taalversie: | ActionScript 3.0 |
| Productversie: | OSMF 2.0 |
| Runtimeversies: | 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
Implementatie
public function get climbFactor():Number public function set climbFactor(value:Number):voidGegenereerde uitzondering
ArgumentError — If it is set to a negative value
|
maxDownSwitchLimit | eigenschap |
maxDownSwitchLimit:int| Taalversie: | ActionScript 3.0 |
| Productversie: | OSMF 2.0 |
| Runtimeversies: | 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.
Implementatie
public function get maxDownSwitchLimit():int public function set maxDownSwitchLimit(value:int):voidmaxReliabilityRecordSize | eigenschap |
maxReliabilityRecordSize:uint| Taalversie: | ActionScript 3.0 |
| Productversie: | OSMF 2.0 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
The maximum length of the reliability record (how many switches to remember)
Implementatie
public function get maxReliabilityRecordSize():uint public function set maxReliabilityRecordSize(value:uint):voidmaxUpSwitchLimit | eigenschap |
maxUpSwitchLimit:int| Taalversie: | ActionScript 3.0 |
| Productversie: | OSMF 2.0 |
| Runtimeversies: | 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.
Implementatie
public function get maxUpSwitchLimit():int public function set maxUpSwitchLimit(value:int):voidminReliability | eigenschap |
minReliability:Number| Taalversie: | ActionScript 3.0 |
| Productversie: | OSMF 2.0 |
| Runtimeversies: | 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)
Implementatie
public function get minReliability():Number public function set minReliability(value:Number):voidGegenereerde uitzondering
ArgumentError — If it is set to an invalid value
|
minReliabilityRecordSize | eigenschap |
minReliabilityRecordSize:uint| Taalversie: | ActionScript 3.0 |
| Productversie: | OSMF 2.0 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
The minimum length of the reliability record below which reliability is not an issue
Implementatie
public function get minReliabilityRecordSize():uint public function set minReliabilityRecordSize(value:uint):voidnormalRules | eigenschap |
normalRules:Vector.<RuleBase> [alleen-lezen] | Taalversie: | ActionScript 3.0 |
| Productversie: | OSMF 2.0 |
| Runtimeversies: | 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
Implementatie
public function get normalRules():Vector.<RuleBase>normalRuleWeights | eigenschap |
normalRuleWeights:Vector.<Number>| Taalversie: | ActionScript 3.0 |
| Productversie: | OSMF 2.0 |
| Runtimeversies: | 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
Implementatie
public function get normalRuleWeights():Vector.<Number> public function set normalRuleWeights(value:Vector.<Number>):voidGegenereerde uitzondering
ArgumentError — If the weights are not valid,
by breaking at least one of the above criteria
|
Constructordetails
DefaultHTTPStreamingSwitchManager | () | Constructor |
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)| Taalversie: | ActionScript 3.0 |
| Productversie: | OSMF 2.0 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
Constructor.
Parametersnotifier: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) |
Methodedetails
getCurrentReliability | () | methode |
public function getCurrentReliability(index:uint):Number| Taalversie: | ActionScript 3.0 |
| Productversie: | OSMF 2.0 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
The current reliability of the specified index.
Parameters
index:uint |
Number — A number between 0 (most unreliable) and 1 (most reliable)
|
getMaxIndex | () | methode |
protected function getMaxIndex(maxBitrate:Number, emergencyFlag:Boolean = false):uint| Taalversie: | ActionScript 3.0 |
| Productversie: | OSMF 2.0 |
| Runtimeversies: | 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.
Parameters
maxBitrate:Number — The maximum bitrate to which the index must comply
| |
emergencyFlag:Boolean (default = false) |
uint — The index satisfying the aforementioned condition
|
Verwante API-elementen
getNewEmergencyIndex | () | methode |
getNewIndex | () | methode |
isReliable | () | methode |
protected function isReliable(index:uint):Boolean| Taalversie: | ActionScript 3.0 |
| Productversie: | OSMF 2.0 |
| Runtimeversies: | Flash Player 10, AIR 1.5 |
Determines whether an index is reliable. This is achieved by comparing the index's reliability with the minimumReliability
Parameters
index:uint |
Boolean |
Verwante API-elementen
setNormalRules | () | methode |
protected function setNormalRules(value:Vector.<RuleBase>):void| Taalversie: | ActionScript 3.0 |
| Productversie: | OSMF 2.0 |
| Runtimeversies: | 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.
Parameters
value:Vector.<RuleBase> |
Verwante API-elementen
Wed Jun 13 2018, 11:42 AM Z