com.google.android.exoplayer2.source.hls.offline

Class HlsDownloader

java.lang.Object

com.google.android.exoplayer2.offline.SegmentDownloader<HlsPlaylist,RenditionKey>

com.google.android.exoplayer2.source.hls.offline.HlsDownloader

All Implemented Interfaces:

com.google.android.exoplayer2.offline.Downloader

public final class HlsDownloader
extends com.google.android.exoplayer2.offline.SegmentDownloader<HlsPlaylist,RenditionKey>

A downloader for HLS 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 variant in a master playlist.
 HlsDownloader hlsDownloader =
     new HlsDownloader(
         playlistUri,
         Collections.singletonList(new RenditionKey(RenditionKey.TYPE_VARIANT, 0)),
         constructorHelper);
 // Perform the download.
 hlsDownloader.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
HlsDownloader(android.net.Uri playlistUri, java.util.List<RenditionKey> renditionKeys, com.google.android.exoplayer2.offline.DownloaderConstructorHelper constructorHelper)

Method Summary

Modifier and Type	Method and Description
protected HlsPlaylist	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, HlsPlaylist playlist, 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

HlsDownloader

public HlsDownloader(android.net.Uri playlistUri,
                     java.util.List<RenditionKey> renditionKeys,
                     com.google.android.exoplayer2.offline.DownloaderConstructorHelper constructorHelper)

Parameters:

playlistUri - The Uri of the playlist to be downloaded.

renditionKeys - Keys defining which renditions in the playlist should be selected for download. If empty, all renditions are downloaded.

constructorHelper - A DownloaderConstructorHelper instance.

Method Detail

getManifest

protected HlsPlaylist 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<HlsPlaylist,RenditionKey>

Throws:

java.io.IOException

getSegments

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

Specified by:

getSegments in class com.google.android.exoplayer2.offline.SegmentDownloader<HlsPlaylist,RenditionKey>

Throws:

java.io.IOException