TubeLab-App-Android/app/src/main/java/app/fedilab/fedilabtube/helper/CacheDataSourceFactory.java

69 lines
3.4 KiB
Java

package app.fedilab.fedilabtube.helper;
/* Copyright 2020 Thomas Schneider
*
* This file is a part of TubeLab
*
* This program is free software; you can redistribute it and/or modify it under the terms of the
* GNU General Public License as published by the Free Software Foundation; either version 3 of the
* License, or (at your option) any later version.
*
* TubeLab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*
* You should have received a copy of the GNU General Public License along with TubeLab; if not,
* see <http://www.gnu.org/licenses>. */
import android.content.Context;
import android.content.SharedPreferences;
import com.google.android.exoplayer2.database.ExoDatabaseProvider;
import com.google.android.exoplayer2.upstream.DataSource;
import com.google.android.exoplayer2.upstream.DefaultBandwidthMeter;
import com.google.android.exoplayer2.upstream.DefaultDataSourceFactory;
import com.google.android.exoplayer2.upstream.DefaultHttpDataSourceFactory;
import com.google.android.exoplayer2.upstream.FileDataSource;
import com.google.android.exoplayer2.upstream.cache.CacheDataSink;
import com.google.android.exoplayer2.upstream.cache.CacheDataSource;
import com.google.android.exoplayer2.upstream.cache.LeastRecentlyUsedCacheEvictor;
import com.google.android.exoplayer2.upstream.cache.SimpleCache;
import com.google.android.exoplayer2.util.Util;
import java.io.File;
public class CacheDataSourceFactory implements DataSource.Factory {
private static SimpleCache sDownloadCache;
private final Context context;
private final DefaultDataSourceFactory defaultDatasourceFactory;
private final long maxFileSize;
public CacheDataSourceFactory(Context context) {
super();
this.context = context;
this.maxFileSize = 5 * 1024 * 1024;
DefaultBandwidthMeter.Builder bandwidthMeterBuilder = new DefaultBandwidthMeter.Builder(context);
DefaultBandwidthMeter bandwidthMeter = bandwidthMeterBuilder.build();
defaultDatasourceFactory = new DefaultDataSourceFactory(this.context,
bandwidthMeter,
new DefaultHttpDataSourceFactory(Util.getUserAgent(context, null), bandwidthMeter));
}
public static SimpleCache getInstance(Context context) {
SharedPreferences sharedpreferences = context.getSharedPreferences(Helper.APP_PREFS, Context.MODE_PRIVATE);
int video_cache = sharedpreferences.getInt(Helper.SET_VIDEO_CACHE, Helper.DEFAULT_VIDEO_CACHE_MB);
LeastRecentlyUsedCacheEvictor evictor = new LeastRecentlyUsedCacheEvictor(video_cache * 1024 * 1024);
ExoDatabaseProvider exoDatabaseProvider = new ExoDatabaseProvider(context);
if (sDownloadCache == null)
sDownloadCache = new SimpleCache(new File(context.getCacheDir(), "media"), evictor, exoDatabaseProvider);
return sDownloadCache;
}
@Override
public DataSource createDataSource() {
SimpleCache simpleCache = getInstance(context);
return new CacheDataSource(simpleCache, defaultDatasourceFactory.createDataSource(),
new FileDataSource(), new CacheDataSink(simpleCache, maxFileSize),
CacheDataSource.FLAG_BLOCK_ON_CACHE | CacheDataSource.FLAG_IGNORE_CACHE_ON_ERROR, null);
}
}