(Beta)
| Package | org.osmf.net.rules |
| Class | public class AfterUpSwitchBufferBandwidthRule |
| Inheritance | AfterUpSwitchBufferBandwidthRule  BufferBandwidthRule BandwidthRule RuleBase Object |
| Language Version: | ActionScript 3.0 |
| Product Version: | OSMF 2.0 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
AfterUpSwitchBufferBandwidthRule is an emergency rule based on BufferBandwidthRule. It kicks in if the last fragment downloaded is higher quality than the previous one and it recommends a lower bitrate if the current quality is cleary unsustainable.
It works like the BufferBandwidthRule, only on a single fragment (the last downloaded) and only if that fragment is the first from a higher quality level. In addition to the BufferBandwidthRule, this rule will not kick in (will return a zero-confidence recommendation) if the bandwidth is above an acceptable level.
Public Properties
Hide Inherited Public Properties
Show Inherited Public Properties| Property | Defined By | ||
|---|---|---|---|
 | bufferFragmentsThreshold : Number
The number of fragments in the buffer above which no lower bitrates are recomended.
For example, assume the bandwidth has a value of 3000 kbps and the actual bitrate is 5000 kbps.
If the number of fragments in the buffer is below the threshold, the rule will recommend 3000 kbps; otherwise, it will recommend 5000 kbps
| BufferBandwidthRule | |
| constructor : Object
A reference to the class object or constructor function for a given object instance. | Object | |
| metricRepository : MetricRepository [read-only]
The metric repository. | RuleBase | |
| minBandwidthToBitrateRatio : Number
The minimum acceptable value of the bandwidth / bitrate fraction.
This is taken into consideration only if the bufferFragmentsThreshold constraint is not satisfied. | AfterUpSwitchBufferBandwidthRule | ||
| weights : Vector.<Number> [read-only]
The weights of the fragments (first values are the weights of the most recent fragments
| BandwidthRule | |
Protected Properties
Public Methods
| Method | Defined By | ||
|---|---|---|---|
AfterUpSwitchBufferBandwidthRule(metricRepository:MetricRepository, bufferFragmentsThreshold:Number, minBandwidthToBitrateRatio:Number)
Constructor. | AfterUpSwitchBufferBandwidthRule | ||
[override]
The recommendation
| AfterUpSwitchBufferBandwidthRule | ||
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Indicates whether an object has a specified property defined. | Object | |
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Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter. | Object | |
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Indicates whether the specified property exists and is enumerable. | Object | |
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Sets the availability of a dynamic property for loop operations. | Object | |
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Returns the string representation of this object, formatted according to locale-specific conventions. | Object | |
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Returns the string representation of the specified object. | Object | |
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Returns the primitive value of the specified object. | Object | |
Property Detail
minBandwidthToBitrateRatio | property |
minBandwidthToBitrateRatio:Number| Language Version: | ActionScript 3.0 |
| Product Version: | OSMF 2.0 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
The minimum acceptable value of the bandwidth / bitrate fraction. This is taken into consideration only if the bufferFragmentsThreshold constraint is not satisfied.
Implementation
public function get minBandwidthToBitrateRatio():Number public function set minBandwidthToBitrateRatio(value:Number):voidConstructor Detail
AfterUpSwitchBufferBandwidthRule | () | Constructor |
public function AfterUpSwitchBufferBandwidthRule(metricRepository:MetricRepository, bufferFragmentsThreshold:Number, minBandwidthToBitrateRatio:Number)| Language Version: | ActionScript 3.0 |
| Product Version: | OSMF 2.0 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
Constructor.
ParametersmetricRepository:MetricRepository — The metric repository from which to retrieve the necessary metrics
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bufferFragmentsThreshold:Number — The number of fragments in the buffer above which no lower bitrates are recomended.
For example, assume the bandwidth has a value of 3000 kbps and the actual bitrate is 5000 kbps.
If the number of fragments in the buffer is below the threshold, the rule will recommend 3000 kbps; otherwise, it will recommend 5000 kbps
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minBandwidthToBitrateRatio:Number — The minimum acceptable value of the bandwidth / bitrate fraction.
This is taken into consideration only if the bufferFragmentsThreshold constraint is not satisfied.
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Method Detail
getRecommendation | () | method |
override public function getRecommendation():Recommendation| Language Version: | ActionScript 3.0 |
| Product Version: | OSMF 2.0 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
The recommendation
ReturnsRecommendation |
Wed Nov 21 2018, 06:34 AM -08:00