com.google.android.exoplayer.chunk

Class FormatEvaluator.RandomEvaluator

java.lang.Object

com.google.android.exoplayer.chunk.FormatEvaluator.RandomEvaluator

All Implemented Interfaces:

FormatEvaluator

Enclosing interface:

FormatEvaluator

public static final class FormatEvaluator.RandomEvaluator
extends Object
implements FormatEvaluator

Selects randomly between the available formats.

Nested Class Summary

Nested classes/interfaces inherited from interface com.google.android.exoplayer.chunk.FormatEvaluator

FormatEvaluator.AdaptiveEvaluator, FormatEvaluator.Evaluation, FormatEvaluator.FixedEvaluator, FormatEvaluator.RandomEvaluator

Constructor Summary

Constructors

Constructor and Description
RandomEvaluator()
RandomEvaluator(int seed)

Method Summary

Modifier and Type	Method and Description
void	disable() Disables the evaluator.
void	enable() Enables the evaluator.
void	evaluate(List<? extends MediaChunk> queue, long playbackPositionUs, Format[] formats, FormatEvaluator.Evaluation evaluation) Update the supplied evaluation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RandomEvaluator

public RandomEvaluator()

RandomEvaluator

public RandomEvaluator(int seed)

Parameters:

seed - A seed for the underlying random number generator.

Method Detail

enable

public void enable()

Description copied from interface: FormatEvaluator

Enables the evaluator.

Specified by:

enable in interface FormatEvaluator

disable

public void disable()

Description copied from interface: FormatEvaluator

Disables the evaluator.

Specified by:

disable in interface FormatEvaluator

evaluate

public void evaluate(List<? extends MediaChunk> queue,
                     long playbackPositionUs,
                     Format[] formats,
                     FormatEvaluator.Evaluation evaluation)

Description copied from interface: FormatEvaluator

Update the supplied evaluation.

When the method is invoked, evaluation will contain the currently selected format (null for the first evaluation), the most recent trigger (TRIGGER_INITIAL for the first evaluation) and the current queue size. The implementation should update these fields as necessary.

The trigger should be considered "sticky" for as long as a given representation is selected, and so should only be changed if the representation is also changed.

Specified by:

evaluate in interface FormatEvaluator

Parameters:

queue - A read only representation of the currently buffered MediaChunks.

playbackPositionUs - The current playback position.

formats - The formats from which to select, ordered by decreasing bandwidth.

evaluation - The evaluation.