Pakiet | org.osmf.net.httpstreaming |
Klasa | public class DefaultHTTPStreamingSwitchManager |
Dziedziczenie | DefaultHTTPStreamingSwitchManager RuleSwitchManagerBase NetStreamSwitchManagerBase EventDispatcher Object |
Wersja języka: | ActionScript 3.0 |
Wersja produktu: | OSMF 2.0 |
Wersje środowiska wykonawczego: | Flash Player 10, AIR 1.5 |
Powiązane elementy interfejsu API
org.osmf.net.abr.RuleBase
Właściwość | Zdefiniowane przez | ||
---|---|---|---|
actualIndex : int [tylko do odczytu]
The index of the currently downloading quality level
| RuleSwitchManagerBase | ||
autoSwitch : Boolean [przesłanianie] | RuleSwitchManagerBase | ||
climbFactor : Number
A factor to be applied when switching up. | DefaultHTTPStreamingSwitchManager | ||
constructor : Object
Odwołanie do obiektu klasy lub funkcji konstruktora, dotyczące danej instancji obiektu. | Object | ||
currentIndex : uint [przesłanianie] [tylko do odczytu] | RuleSwitchManagerBase | ||
emergencyRules : Vector.<RuleBase> [tylko do odczytu]
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 [tylko do odczytu]
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> [tylko do odczytu]
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 |
Metoda | Zdefiniowane przez | ||
---|---|---|---|
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
Rejestruje obiekt detektora zdarzeń w obiekcie EventDispatcher, dzięki czemu detektor będzie otrzymywał powiadomienia o zdarzeniu. | EventDispatcher | ||
Wywołuje zdarzenie, tj. kieruje je do przepływu zdarzeń. | EventDispatcher | ||
The current reliability of the specified index. | DefaultHTTPStreamingSwitchManager | ||
[przesłanianie]
Returns an index that satisfies the maxBitrate constraint
| DefaultHTTPStreamingSwitchManager | ||
[przesłanianie]
Computes the necessary rules and metrics and determines the index to switch to. | DefaultHTTPStreamingSwitchManager | ||
Sprawdza, czy obiekt EventDispatcher zawiera jakiekolwiek detektory zarejestrowane dla konkretnego typu zdarzeń. | EventDispatcher | ||
Wskazuje, czy dla obiektu zdefiniowano określoną właściwość. | Object | ||
Wskazuje, czy instancja klasy Object należy do łańcucha prototypów obiektu określonego jako parametr. | Object | ||
Wskazuje, czy określona właściwość istnieje i jest przeliczalna. | Object | ||
Usuwa detektor z obiektu EventDispatcher. | EventDispatcher | ||
Ustawia dostępność właściwości dynamicznej używanej w pętlach. | Object | ||
[przesłanianie] | RuleSwitchManagerBase | ||
Zwraca ciąg reprezentujący obiekt — sformatowany zgodnie z konwencjami właściwymi dla ustawień regionalnych. | Object | ||
Zwraca ciąg reprezentujący określony obiekt. | Object | ||
Zwraca pierwotną wartość dla określonego obiektu. | Object | ||
Sprawdza, czy detektor zdarzeń określonego typu jest zarejestrowany w tym obiekcie EventDispatcher lub jego elementach macierzystych. | EventDispatcher |
Metoda | Zdefiniowane przez | ||
---|---|---|---|
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 |
climbFactor | właściwość |
climbFactor:Number
Wersja języka: | ActionScript 3.0 |
Wersja produktu: | OSMF 2.0 |
Wersje środowiska wykonawczego: | 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
Implementacja
public function get climbFactor():Number
public function set climbFactor(value:Number):void
Zgłasza
ArgumentError — If it is set to a negative value
|
maxDownSwitchLimit | właściwość |
maxDownSwitchLimit:int
Wersja języka: | ActionScript 3.0 |
Wersja produktu: | OSMF 2.0 |
Wersje środowiska wykonawczego: | 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.
Implementacja
public function get maxDownSwitchLimit():int
public function set maxDownSwitchLimit(value:int):void
maxReliabilityRecordSize | właściwość |
maxReliabilityRecordSize:uint
Wersja języka: | ActionScript 3.0 |
Wersja produktu: | OSMF 2.0 |
Wersje środowiska wykonawczego: | Flash Player 10, AIR 1.5 |
The maximum length of the reliability record (how many switches to remember)
Implementacja
public function get maxReliabilityRecordSize():uint
public function set maxReliabilityRecordSize(value:uint):void
maxUpSwitchLimit | właściwość |
maxUpSwitchLimit:int
Wersja języka: | ActionScript 3.0 |
Wersja produktu: | OSMF 2.0 |
Wersje środowiska wykonawczego: | 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.
Implementacja
public function get maxUpSwitchLimit():int
public function set maxUpSwitchLimit(value:int):void
minReliability | właściwość |
minReliability:Number
Wersja języka: | ActionScript 3.0 |
Wersja produktu: | OSMF 2.0 |
Wersje środowiska wykonawczego: | 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)
Implementacja
public function get minReliability():Number
public function set minReliability(value:Number):void
Zgłasza
ArgumentError — If it is set to an invalid value
|
minReliabilityRecordSize | właściwość |
minReliabilityRecordSize:uint
Wersja języka: | ActionScript 3.0 |
Wersja produktu: | OSMF 2.0 |
Wersje środowiska wykonawczego: | Flash Player 10, AIR 1.5 |
The minimum length of the reliability record below which reliability is not an issue
Implementacja
public function get minReliabilityRecordSize():uint
public function set minReliabilityRecordSize(value:uint):void
normalRules | właściwość |
normalRules:Vector.<RuleBase>
[tylko do odczytu] Wersja języka: | ActionScript 3.0 |
Wersja produktu: | OSMF 2.0 |
Wersje środowiska wykonawczego: | 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
Implementacja
public function get normalRules():Vector.<RuleBase>
normalRuleWeights | właściwość |
normalRuleWeights:Vector.<Number>
Wersja języka: | ActionScript 3.0 |
Wersja produktu: | OSMF 2.0 |
Wersje środowiska wykonawczego: | 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
Implementacja
public function get normalRuleWeights():Vector.<Number>
public function set normalRuleWeights(value:Vector.<Number>):void
Zgłasza
ArgumentError — If the weights are not valid,
by breaking at least one of the above criteria
|
DefaultHTTPStreamingSwitchManager | () | Konstruktor |
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)
Wersja języka: | ActionScript 3.0 |
Wersja produktu: | OSMF 2.0 |
Wersje środowiska wykonawczego: | Flash Player 10, AIR 1.5 |
Constructor.
Parametrynotifier: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.
|
getCurrentReliability | () | metoda |
public function getCurrentReliability(index:uint):Number
Wersja języka: | ActionScript 3.0 |
Wersja produktu: | OSMF 2.0 |
Wersje środowiska wykonawczego: | Flash Player 10, AIR 1.5 |
The current reliability of the specified index.
Parametry
index:uint |
Number — A number between 0 (most unreliable) and 1 (most reliable)
|
getMaxIndex | () | metoda |
protected function getMaxIndex(maxBitrate:Number, emergencyFlag:Boolean = false):uint
Wersja języka: | ActionScript 3.0 |
Wersja produktu: | OSMF 2.0 |
Wersje środowiska wykonawczego: | 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.
Parametry
maxBitrate:Number — The maximum bitrate to which the index must comply
| |
emergencyFlag:Boolean (default = false )
|
uint — The index satisfying the aforementioned condition
|
Powiązane elementy interfejsu API
getNewEmergencyIndex | () | metoda |
getNewIndex | () | metoda |
isReliable | () | metoda |
protected function isReliable(index:uint):Boolean
Wersja języka: | ActionScript 3.0 |
Wersja produktu: | OSMF 2.0 |
Wersje środowiska wykonawczego: | Flash Player 10, AIR 1.5 |
Determines whether an index is reliable. This is achieved by comparing the index's reliability with the minimumReliability
Parametry
index:uint |
Boolean |
Powiązane elementy interfejsu API
setNormalRules | () | metoda |
protected function setNormalRules(value:Vector.<RuleBase>):void
Wersja języka: | ActionScript 3.0 |
Wersja produktu: | OSMF 2.0 |
Wersje środowiska wykonawczego: | 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.
Parametry
value:Vector.<RuleBase> |
Powiązane elementy interfejsu API
Tue Jun 12 2018, 12:06 PM Z