com.google.android.exoplayer2.source

Class MergingMediaSource

java.lang.Object

com.google.android.exoplayer2.source.BaseMediaSource

com.google.android.exoplayer2.source.CompositeMediaSource<java.lang.Integer>

com.google.android.exoplayer2.source.MergingMediaSource

All Implemented Interfaces:

MediaSource

public final class MergingMediaSource
extends CompositeMediaSource<java.lang.Integer>

Merges multiple MediaSources.

The Timelines of the sources being merged must have the same number of periods.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MergingMediaSource.IllegalMergeException Thrown when a MergingMediaSource cannot merge its sources.

Nested classes/interfaces inherited from interface com.google.android.exoplayer2.source.MediaSource

MediaSource.MediaPeriodId, MediaSource.SourceInfoRefreshListener

Constructor Summary

Constructors

Constructor and Description
MergingMediaSource(CompositeSequenceableLoaderFactory compositeSequenceableLoaderFactory, MediaSource... mediaSources)
MergingMediaSource(MediaSource... mediaSources)

Method Summary

Modifier and Type	Method and Description
MediaPeriod	createPeriod(MediaSource.MediaPeriodId id, Allocator allocator) Returns a new MediaPeriod identified by periodId.
protected MediaSource.MediaPeriodId	getMediaPeriodIdForChildMediaPeriodId(java.lang.Integer id, MediaSource.MediaPeriodId mediaPeriodId) Returns the MediaPeriodId in the composite source corresponding to the specified MediaPeriodId in a child source.
void	maybeThrowSourceInfoRefreshError() Throws any pending error encountered while loading or refreshing source information.
protected void	onChildSourceInfoRefreshed(java.lang.Integer id, MediaSource mediaSource, Timeline timeline, java.lang.Object manifest) Called when the source info of a child source has been refreshed.
void	prepareSourceInternal(ExoPlayer player, boolean isTopLevelSource, TransferListener mediaTransferListener) Starts source preparation.
void	releasePeriod(MediaPeriod mediaPeriod) Releases the period.
void	releaseSourceInternal() Releases the source.

Methods inherited from class com.google.android.exoplayer2.source.CompositeMediaSource

getMediaTimeForChildMediaTime, getWindowIndexForChildWindowIndex, prepareChildSource, releaseChildSource

Methods inherited from class com.google.android.exoplayer2.source.BaseMediaSource

addEventListener, createEventDispatcher, createEventDispatcher, createEventDispatcher, prepareSource, prepareSource, refreshSourceInfo, releaseSource, removeEventListener

Methods inherited from class java.lang.Object

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

Constructor Detail

MergingMediaSource

public MergingMediaSource(MediaSource... mediaSources)

Parameters:

mediaSources - The MediaSources to merge.

MergingMediaSource

public MergingMediaSource(CompositeSequenceableLoaderFactory compositeSequenceableLoaderFactory,
                          MediaSource... mediaSources)

Parameters:

compositeSequenceableLoaderFactory - A factory to create composite SequenceableLoaders for when this media source loads data from multiple streams (video, audio etc...).

mediaSources - The MediaSources to merge.

Method Detail

prepareSourceInternal

public void prepareSourceInternal(ExoPlayer player,
                                  boolean isTopLevelSource,
                                  @Nullable
                                  TransferListener mediaTransferListener)

Description copied from class: BaseMediaSource

Starts source preparation. This method is called at most once until the next call to BaseMediaSource.releaseSourceInternal().

Overrides:

prepareSourceInternal in class CompositeMediaSource<java.lang.Integer>

Parameters:

player - The player for which this source is being prepared.

isTopLevelSource - Whether this source has been passed directly to ExoPlayer.prepare(MediaSource) or ExoPlayer.prepare(MediaSource, boolean, boolean).

mediaTransferListener - The transfer listener which should be informed of any media data transfers. May be null if no listener is available. Note that this listener should usually be only informed of transfers related to the media loads and not of auxiliary loads for manifests and other data.

maybeThrowSourceInfoRefreshError

public void maybeThrowSourceInfoRefreshError()
                                      throws java.io.IOException

Description copied from interface: MediaSource

Throws any pending error encountered while loading or refreshing source information.

Should not be called directly from application code.

Specified by:

maybeThrowSourceInfoRefreshError in interface MediaSource

Overrides:

maybeThrowSourceInfoRefreshError in class CompositeMediaSource<java.lang.Integer>

Throws:

java.io.IOException

createPeriod

public MediaPeriod createPeriod(MediaSource.MediaPeriodId id,
                                Allocator allocator)

Description copied from interface: MediaSource

Returns a new MediaPeriod identified by periodId. This method may be called multiple times without an intervening call to MediaSource.releasePeriod(MediaPeriod).

Should not be called directly from application code.

Parameters:

id - The identifier of the period.

allocator - An Allocator from which to obtain media buffer allocations.

Returns:

A new MediaPeriod.

releasePeriod

public void releasePeriod(MediaPeriod mediaPeriod)

Description copied from interface: MediaSource

Releases the period.

Should not be called directly from application code.

Parameters:

mediaPeriod - The period to release.

releaseSourceInternal

public void releaseSourceInternal()

Description copied from class: BaseMediaSource

Releases the source. This method is called exactly once after each call to BaseMediaSource.prepareSourceInternal(ExoPlayer, boolean, TransferListener).

Overrides:

releaseSourceInternal in class CompositeMediaSource<java.lang.Integer>

onChildSourceInfoRefreshed

protected void onChildSourceInfoRefreshed(java.lang.Integer id,
                                          MediaSource mediaSource,
                                          Timeline timeline,
                                          @Nullable
                                          java.lang.Object manifest)

Description copied from class: CompositeMediaSource

Called when the source info of a child source has been refreshed.

Specified by:

onChildSourceInfoRefreshed in class CompositeMediaSource<java.lang.Integer>

Parameters:

id - The unique id used to prepare the child source.

mediaSource - The child source whose source info has been refreshed.

timeline - The timeline of the child source.

manifest - The manifest of the child source.

getMediaPeriodIdForChildMediaPeriodId

@Nullable
protected MediaSource.MediaPeriodId getMediaPeriodIdForChildMediaPeriodId(java.lang.Integer id,
                                                                                    MediaSource.MediaPeriodId mediaPeriodId)

Description copied from class: CompositeMediaSource

Returns the MediaPeriodId in the composite source corresponding to the specified MediaPeriodId in a child source. The default implementation does not change the media period id.

Overrides:

getMediaPeriodIdForChildMediaPeriodId in class CompositeMediaSource<java.lang.Integer>

Parameters:

id - The unique id used to prepare the child source.

mediaPeriodId - A MediaPeriodId of the child source.

Returns:

The corresponding MediaPeriodId in the composite source. Null if no corresponding media period id can be determined.