java.lang.Object
- com.google.android.exoplayer2.upstream.experimental.ExponentialWeightedAverageTimeToFirstByteEstimator

All Implemented Interfaces:

TimeToFirstByteEstimator
```
@Deprecated
public final class ExponentialWeightedAverageTimeToFirstByteEstimator
extends Object
implements TimeToFirstByteEstimator
```
Deprecated.
com.google.android.exoplayer2 is deprecated. Please migrate to androidx.media3 (which contains the same ExoPlayer code). See the migration guide for more details, including a script to help with the migration.

Implementation of TimeToFirstByteEstimator based on exponential weighted average.

Field Summary

Fields
Modifier and Type Field Description

static double DEFAULT_SMOOTHING_FACTOR
Deprecated.

The default smoothing factor.

Constructor Summary

Constructors
Constructor	Description
`ExponentialWeightedAverageTimeToFirstByteEstimator()`	Deprecated. Creates an instance using the `DEFAULT_SMOOTHING_FACTOR`.
`ExponentialWeightedAverageTimeToFirstByteEstimator(double smoothingFactor)`	Deprecated. Creates an instance.

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`long`	`getTimeToFirstByteEstimateUs()`	Deprecated. Returns the estimated time to first byte of the response body, in microseconds, or `C.TIME_UNSET` if no estimate is available.
`void`	`onTransferInitializing(DataSpec dataSpec)`	Deprecated. Called when a transfer is being initialized.
`void`	`onTransferStart(DataSpec dataSpec)`	Deprecated. Called when a transfer starts.
`void`	`reset()`	Deprecated. Resets the estimator.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - DEFAULT_SMOOTHING_FACTOR
```
public static final double DEFAULT_SMOOTHING_FACTOR
```
    Deprecated.
    
    The default smoothing factor.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - ExponentialWeightedAverageTimeToFirstByteEstimator
```
public ExponentialWeightedAverageTimeToFirstByteEstimator()
```
    Deprecated.
    
    Creates an instance using the DEFAULT_SMOOTHING_FACTOR.
  - ExponentialWeightedAverageTimeToFirstByteEstimator
```
public ExponentialWeightedAverageTimeToFirstByteEstimator(double smoothingFactor)
```
    Deprecated.
    
    Creates an instance.
    
    Parameters:
    
    smoothingFactor - The exponential weighted average smoothing factor.
- Method Detail
  - getTimeToFirstByteEstimateUs
```
public long getTimeToFirstByteEstimateUs()
```
    Deprecated.
    
    Description copied from interface: TimeToFirstByteEstimator
    
    Returns the estimated time to first byte of the response body, in microseconds, or C.TIME_UNSET if no estimate is available.
    
    Specified by:
    
    getTimeToFirstByteEstimateUs in interface TimeToFirstByteEstimator
  - reset
```
public void reset()
```
    Deprecated.
    
    Description copied from interface: TimeToFirstByteEstimator
    
    Resets the estimator.
    
    Specified by:
    
    reset in interface TimeToFirstByteEstimator
  - onTransferInitializing
```
public void onTransferInitializing(DataSpec dataSpec)
```
    Deprecated.
    
    Description copied from interface: TimeToFirstByteEstimator
    
    Called when a transfer is being initialized.
    
    Specified by:
    
    onTransferInitializing in interface TimeToFirstByteEstimator
    
    Parameters:
    
    dataSpec - Describes the data for which the transfer is initialized.
  - onTransferStart
```
public void onTransferStart(DataSpec dataSpec)
```
    Deprecated.
    
    Description copied from interface: TimeToFirstByteEstimator
    
    Called when a transfer starts.
    
    Specified by:
    
    onTransferStart in interface TimeToFirstByteEstimator
    
    Parameters:
    
    dataSpec - Describes the data being transferred.

Class ExponentialWeightedAverageTimeToFirstByteEstimator

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_SMOOTHING_FACTOR

Constructor Detail

ExponentialWeightedAverageTimeToFirstByteEstimator

ExponentialWeightedAverageTimeToFirstByteEstimator

Method Detail

getTimeToFirstByteEstimateUs

reset

onTransferInitializing

onTransferStart