com.google.android.exoplayer2.upstream

Class DefaultBandwidthMeter

java.lang.Object

com.google.android.exoplayer2.upstream.DefaultBandwidthMeter

All Implemented Interfaces:

BandwidthMeter, TransferListener<java.lang.Object>

public final class DefaultBandwidthMeter
extends java.lang.Object
implements BandwidthMeter, TransferListener<java.lang.Object>

Estimates bandwidth by listening to data transfers. The bandwidth estimate is calculated using a SlidingPercentile and is updated each time a transfer ends.

Nested Class Summary

Nested classes/interfaces inherited from interface com.google.android.exoplayer2.upstream.BandwidthMeter

BandwidthMeter.EventListener

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_MAX_WEIGHT The default maximum weight for the sliding window.

Fields inherited from interface com.google.android.exoplayer2.upstream.BandwidthMeter

NO_ESTIMATE

Constructor Summary

Constructors

Constructor and Description
DefaultBandwidthMeter()
DefaultBandwidthMeter(android.os.Handler eventHandler, BandwidthMeter.EventListener eventListener)
DefaultBandwidthMeter(android.os.Handler eventHandler, BandwidthMeter.EventListener eventListener, int maxWeight)
DefaultBandwidthMeter(android.os.Handler eventHandler, BandwidthMeter.EventListener eventListener, int maxWeight, Clock clock)

Method Summary

Modifier and Type	Method and Description
long	getBitrateEstimate() Returns the estimated bandwidth in bits/sec, or BandwidthMeter.NO_ESTIMATE if an estimate is not available.
void	onBytesTransferred(java.lang.Object source, int bytes) Called incrementally during a transfer.
void	onTransferEnd(java.lang.Object source) Called when a transfer ends.
void	onTransferStart(java.lang.Object source, DataSpec dataSpec) Called when a transfer starts.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_MAX_WEIGHT

public static final int DEFAULT_MAX_WEIGHT

The default maximum weight for the sliding window.

See Also:

Constant Field Values

Constructor Detail

DefaultBandwidthMeter

public DefaultBandwidthMeter()

DefaultBandwidthMeter

public DefaultBandwidthMeter(android.os.Handler eventHandler,
                             BandwidthMeter.EventListener eventListener)

DefaultBandwidthMeter

public DefaultBandwidthMeter(android.os.Handler eventHandler,
                             BandwidthMeter.EventListener eventListener,
                             int maxWeight)

DefaultBandwidthMeter

public DefaultBandwidthMeter(android.os.Handler eventHandler,
                             BandwidthMeter.EventListener eventListener,
                             int maxWeight,
                             Clock clock)

Method Detail

getBitrateEstimate

public long getBitrateEstimate()

Description copied from interface: BandwidthMeter

Returns the estimated bandwidth in bits/sec, or BandwidthMeter.NO_ESTIMATE if an estimate is not available.

Specified by:

getBitrateEstimate in interface BandwidthMeter

onTransferStart

public void onTransferStart(java.lang.Object source,
                            DataSpec dataSpec)

Description copied from interface: TransferListener

Called when a transfer starts.

Specified by:

onTransferStart in interface TransferListener<java.lang.Object>

Parameters:

source - The source performing the transfer.

dataSpec - Describes the data being transferred.

onBytesTransferred

public void onBytesTransferred(java.lang.Object source,
                               int bytes)

Description copied from interface: TransferListener

Called incrementally during a transfer.

Specified by:

onBytesTransferred in interface TransferListener<java.lang.Object>

Parameters:

source - The source performing the transfer.

bytes - The number of bytes transferred since the previous call to this method (or if the first call, since the transfer was started).

onTransferEnd

public void onTransferEnd(java.lang.Object source)

Description copied from interface: TransferListener

Called when a transfer ends.

Specified by:

onTransferEnd in interface TransferListener<java.lang.Object>

Parameters:

source - The source performing the transfer.