| 套件 | org.osmf.net.rules |
| 類別 | public class AfterUpSwitchBufferBandwidthRule |
| 繼承 | AfterUpSwitchBufferBandwidthRule  BufferBandwidthRule BandwidthRule RuleBase Object |
| 語言版本: | ActionScript 3.0 |
| 產品版本: | OSMF 2.0 |
| 執行階段版本: | 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.
隱藏繼承公用屬性
顯示繼承公用屬性| 屬性 | 定義自 | ||
|---|---|---|---|
 | 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
類別物件的參照或是特定物件實體的建構函數。 | Object | |
| metricRepository : MetricRepository [唯讀]
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> [唯讀]
The weights of the fragments (first values are the weights of the most recent fragments
| BandwidthRule | |
| 方法 | 定義自 | ||
|---|---|---|---|
AfterUpSwitchBufferBandwidthRule(metricRepository:MetricRepository, bufferFragmentsThreshold:Number, minBandwidthToBitrateRatio:Number)
Constructor. | AfterUpSwitchBufferBandwidthRule | ||
[覆寫]
The recommendation
| AfterUpSwitchBufferBandwidthRule | ||
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指出物件是否有已定義的指定屬性。 | Object | |
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指出 Object 類別的實體是否位於指定為參數的物件原型鏈中。 | Object | |
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指出指定的屬性是否存在，以及是否可列舉。 | Object | |
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為迴圈作業設定動態屬性的可用性。 | Object | |
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傳回代表此物件的字串，根據地區特定慣例進行格式化。 | Object | |
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會傳回指定之物件的字串形式。 | Object | |
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會傳回指定之物件的基本值。 | Object | |
minBandwidthToBitrateRatio | 屬性 |
minBandwidthToBitrateRatio:Number| 語言版本: | ActionScript 3.0 |
| 產品版本: | OSMF 2.0 |
| 執行階段版本: | 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.
實作
public function get minBandwidthToBitrateRatio():Number public function set minBandwidthToBitrateRatio(value:Number):voidAfterUpSwitchBufferBandwidthRule | () | 建構函式 |
public function AfterUpSwitchBufferBandwidthRule(metricRepository:MetricRepository, bufferFragmentsThreshold:Number, minBandwidthToBitrateRatio:Number)| 語言版本: | ActionScript 3.0 |
| 產品版本: | OSMF 2.0 |
| 執行階段版本: | Flash Player 10, AIR 1.5 |
Constructor.
參數metricRepository:MetricRepository — The metric repository from which to retrieve the necessary metrics
| |
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
| |
minBandwidthToBitrateRatio:Number — The minimum acceptable value of the bandwidth / bitrate fraction.
This is taken into consideration only if the bufferFragmentsThreshold constraint is not satisfied.
|
getRecommendation | () | 方法 |
override public function getRecommendation():Recommendation| 語言版本: | ActionScript 3.0 |
| 產品版本: | OSMF 2.0 |
| 執行階段版本: | Flash Player 10, AIR 1.5 |
The recommendation
傳回值Recommendation |
Tue Jun 12 2018, 03:47 PM Z