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

Modifier and Type	Class and Description
static class	DefaultBandwidthMeter.Builder Builder for a bandwidth meter.

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

BandwidthMeter.EventListener

Field Summary

Fields

Modifier and Type	Field and Description
static long	DEFAULT_INITIAL_BITRATE_ESTIMATE Default initial bitrate estimate in bits per second.
static int	DEFAULT_SLIDING_WINDOW_MAX_WEIGHT Default maximum weight for the sliding window.

Constructor Summary

Constructors

Constructor and Description
DefaultBandwidthMeter() Creates a bandwidth meter with default parameters.
DefaultBandwidthMeter(android.os.Handler eventHandler, BandwidthMeter.EventListener eventListener) Deprecated. Use DefaultBandwidthMeter.Builder instead.
DefaultBandwidthMeter(android.os.Handler eventHandler, BandwidthMeter.EventListener eventListener, int maxWeight) Deprecated. Use DefaultBandwidthMeter.Builder instead.

Method Summary

Modifier and Type	Method and Description
long	getBitrateEstimate() Returns the estimated bandwidth in bits/sec.
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_INITIAL_BITRATE_ESTIMATE

public static final long DEFAULT_INITIAL_BITRATE_ESTIMATE

Default initial bitrate estimate in bits per second.

See Also:

Constant Field Values

DEFAULT_SLIDING_WINDOW_MAX_WEIGHT

public static final int DEFAULT_SLIDING_WINDOW_MAX_WEIGHT

Default maximum weight for the sliding window.

See Also:

Constant Field Values

Constructor Detail

DefaultBandwidthMeter

public DefaultBandwidthMeter()

Creates a bandwidth meter with default parameters.

DefaultBandwidthMeter

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

Deprecated. Use DefaultBandwidthMeter.Builder instead.

DefaultBandwidthMeter

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

Deprecated. Use DefaultBandwidthMeter.Builder instead.

Method Detail

getBitrateEstimate

public long getBitrateEstimate()

Description copied from interface: BandwidthMeter

Returns the estimated bandwidth in bits/sec.

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.