com.google.android.exoplayer.chunk

Class DataChunk

java.lang.Object

com.google.android.exoplayer.chunk.Chunk

com.google.android.exoplayer.chunk.DataChunk

All Implemented Interfaces:

Loader.Loadable

public abstract class DataChunk
extends Chunk

A base class for Chunk implementations where the data should be loaded into a byte[] before being consumed.

Field Summary

Fields inherited from class com.google.android.exoplayer.chunk.Chunk

dataSource, dataSpec, format, NO_PARENT_ID, parentId, trigger, TRIGGER_ADAPTIVE, TRIGGER_CUSTOM_BASE, TRIGGER_INITIAL, TRIGGER_MANUAL, TRIGGER_TRICK_PLAY, TRIGGER_UNSPECIFIED, type, TYPE_CUSTOM_BASE, TYPE_DRM, TYPE_MANIFEST, TYPE_MEDIA, TYPE_MEDIA_INITIALIZATION, TYPE_UNSPECIFIED

Constructor Summary

Constructors

Constructor and Description
DataChunk(DataSource dataSource, DataSpec dataSpec, int type, int trigger, Format format, int parentId, byte[] data)

Method Summary

Modifier and Type	Method and Description
long	bytesLoaded() Gets the number of bytes that have been loaded.
void	cancelLoad() Cancels the load.
protected abstract void	consume(byte[] data, int limit) Invoked by load().
byte[]	getDataHolder() Returns the array in which the data is held.
boolean	isLoadCanceled() Whether the load has been canceled.
void	load() Performs the load, returning on completion or cancelation.

Methods inherited from class java.lang.Object

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

Constructor Detail

DataChunk

public DataChunk(DataSource dataSource,
                 DataSpec dataSpec,
                 int type,
                 int trigger,
                 Format format,
                 int parentId,
                 byte[] data)

Parameters:

dataSource - The source from which the data should be loaded.

dataSpec - Defines the data to be loaded. dataSpec.length must not exceed Integer.MAX_VALUE. If dataSpec.length == C.LENGTH_UNBOUNDED then the length resolved by dataSource.open(dataSpec) must not exceed Integer.MAX_VALUE.

type - See Chunk.type.

trigger - See Chunk.trigger.

format - See Chunk.format.

parentId - Identifier for a parent from which this chunk originates.

data - An optional recycled array that can be used as a holder for the data.

Method Detail

getDataHolder

public byte[] getDataHolder()

Returns the array in which the data is held.

This method should be used for recycling the holder only, and not for reading the data.

Returns:

The array in which the data is held.

bytesLoaded

public long bytesLoaded()

Description copied from class: Chunk

Gets the number of bytes that have been loaded.

Specified by:

bytesLoaded in class Chunk

Returns:

The number of bytes that have been loaded.

cancelLoad

public final void cancelLoad()

Description copied from interface: Loader.Loadable

Cancels the load.

isLoadCanceled

public final boolean isLoadCanceled()

Description copied from interface: Loader.Loadable

Whether the load has been canceled.

Returns:

True if the load has been canceled. False otherwise.

load

public final void load()
                throws IOException,
                       InterruptedException

Description copied from interface: Loader.Loadable

Performs the load, returning on completion or cancelation.

Throws:

IOException

InterruptedException

consume

protected abstract void consume(byte[] data,
                                int limit)
                         throws IOException

Invoked by load(). Implementations should override this method to consume the loaded data.

Parameters:

data - An array containing the data.

limit - The limit of the data.

Throws:

IOException - If an error occurs consuming the loaded data.