com.google.android.exoplayer2.source.dash.offline

Class DashDownloader

java.lang.Object

com.google.android.exoplayer2.offline.SegmentDownloader<DashManifest>

com.google.android.exoplayer2.source.dash.offline.DashDownloader

All Implemented Interfaces:

com.google.android.exoplayer2.offline.Downloader

public final class DashDownloader
extends com.google.android.exoplayer2.offline.SegmentDownloader<DashManifest>

A downloader for DASH streams.

Example usage:

 SimpleCache cache = new SimpleCache(downloadFolder, new NoOpCacheEvictor());
 DefaultHttpDataSourceFactory factory = new DefaultHttpDataSourceFactory("ExoPlayer", null);
 DownloaderConstructorHelper constructorHelper =
     new DownloaderConstructorHelper(cache, factory);
 // Create a downloader for the first representation of the first adaptation set of the first
 // period.
 DashDownloader dashDownloader =
     new DashDownloader(
         manifestUrl, Collections.singletonList(new StreamKey(0, 0, 0)), constructorHelper);
 // Perform the download.
 dashDownloader.download();
 // Access downloaded data using CacheDataSource
 CacheDataSource cacheDataSource =
     new CacheDataSource(cache, factory.createDataSource(), CacheDataSource.FLAG_BLOCK_ON_CACHE);
 

Nested Class Summary

Nested classes/interfaces inherited from class com.google.android.exoplayer2.offline.SegmentDownloader

com.google.android.exoplayer2.offline.SegmentDownloader.Segment

Constructor Summary

Constructors

Constructor and Description
DashDownloader(android.net.Uri manifestUri, java.util.List<com.google.android.exoplayer2.offline.StreamKey> streamKeys, com.google.android.exoplayer2.offline.DownloaderConstructorHelper constructorHelper)

Method Summary

Modifier and Type	Method and Description
protected DashManifest	getManifest(com.google.android.exoplayer2.upstream.DataSource dataSource, android.net.Uri uri)
protected java.util.List<com.google.android.exoplayer2.offline.SegmentDownloader.Segment>	getSegments(com.google.android.exoplayer2.upstream.DataSource dataSource, DashManifest manifest, boolean allowIncompleteList)

Methods inherited from class com.google.android.exoplayer2.offline.SegmentDownloader

cancel, download, getDownloadedBytes, getDownloadPercentage, remove

Methods inherited from class java.lang.Object

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

Constructor Detail

DashDownloader

public DashDownloader(android.net.Uri manifestUri,
                      java.util.List<com.google.android.exoplayer2.offline.StreamKey> streamKeys,
                      com.google.android.exoplayer2.offline.DownloaderConstructorHelper constructorHelper)

Parameters:

manifestUri - The Uri of the manifest to be downloaded.

streamKeys - Keys defining which representations in the manifest should be selected for download. If empty, all representations are downloaded.

constructorHelper - A DownloaderConstructorHelper instance.

Method Detail

getManifest

protected DashManifest getManifest(com.google.android.exoplayer2.upstream.DataSource dataSource,
                                   android.net.Uri uri)
                            throws java.io.IOException

Specified by:

getManifest in class com.google.android.exoplayer2.offline.SegmentDownloader<DashManifest>

Throws:

java.io.IOException

getSegments

protected java.util.List<com.google.android.exoplayer2.offline.SegmentDownloader.Segment> getSegments(com.google.android.exoplayer2.upstream.DataSource dataSource,
                                                                                                      DashManifest manifest,
                                                                                                      boolean allowIncompleteList)
                                                                                               throws java.lang.InterruptedException,
                                                                                                      java.io.IOException

Specified by:

getSegments in class com.google.android.exoplayer2.offline.SegmentDownloader<DashManifest>

Throws:

java.lang.InterruptedException

java.io.IOException