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Try to cache streaming contents

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This commit is contained in:
Midori Kochiya 2024-03-11 17:21:28 +08:00
parent 3e1c3133ca
commit 3d3d0fa856
7 changed files with 152 additions and 1 deletions
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42
app/src/main/java/com/cappielloantonio/tempo/util/DownloadUtil.java
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@ -8,10 +8,13 @@ import androidx.media3.common.util.UnstableApi;
import androidx.media3.database.DatabaseProvider;
import androidx.media3.database.StandaloneDatabaseProvider;
import androidx.media3.datasource.DataSource;
import androidx.media3.datasource.DataSpec;
import androidx.media3.datasource.DefaultDataSource;
import androidx.media3.datasource.DefaultHttpDataSource;
import androidx.media3.datasource.ResolvingDataSource;
import androidx.media3.datasource.cache.Cache;
import androidx.media3.datasource.cache.CacheDataSource;
import androidx.media3.datasource.cache.LeastRecentlyUsedCacheEvictor;
import androidx.media3.datasource.cache.NoOpCacheEvictor;
import androidx.media3.datasource.cache.SimpleCache;
import androidx.media3.exoplayer.DefaultRenderersFactory;
@ -42,6 +45,7 @@ public final class DownloadUtil {
private static DatabaseProvider databaseProvider;
private static File downloadDirectory;
private static Cache downloadCache;
private static SimpleCache streamingCache;
private static DownloadManager downloadManager;
private static DownloaderManager downloaderManager;
private static DownloadNotificationHelper downloadNotificationHelper;
@ -75,7 +79,27 @@ public final class DownloadUtil {
if (dataSourceFactory == null) {
context = context.getApplicationContext();
DefaultDataSource.Factory upstreamFactory = new DefaultDataSource.Factory(context, getHttpDataSourceFactory());
dataSourceFactory = buildReadOnlyCacheDataSource(upstreamFactory, getDownloadCache(context));
if (Preferences.getStreamingCacheSize() > 0) {
// Cache enabled
CacheDataSource.Factory streamCacheFactory = new CacheDataSource.Factory()
.setCache(getStreamingCache(context))
.setUpstreamDataSourceFactory(upstreamFactory);
ResolvingDataSource.Factory resolvingFactory = new ResolvingDataSource.Factory(
new StreamingCacheDataSource.Factory(streamCacheFactory),
dataSpec -> {
DataSpec.Builder builder = dataSpec.buildUpon();
builder.setFlags(dataSpec.flags & ~DataSpec.FLAG_DONT_CACHE_IF_LENGTH_UNKNOWN);
return builder.build();
}
);
dataSourceFactory = buildReadOnlyCacheDataSource(resolvingFactory, getDownloadCache(context));
} else {
// Cache disabled
dataSourceFactory = buildReadOnlyCacheDataSource(upstreamFactory, getDownloadCache(context));
}
}
return dataSourceFactory;
@ -108,6 +132,18 @@ public final class DownloadUtil {
return downloadCache;
}
private static synchronized SimpleCache getStreamingCache(Context context) {
if (streamingCache == null) {
File streamingCacheDirectory = new File(context.getCacheDir(), "streamingCache");
streamingCache = new SimpleCache(
streamingCacheDirectory,
new LeastRecentlyUsedCacheEvictor(Preferences.getStreamingCacheSize() * 1024 * 1024),
getDatabaseProvider(context)
);
}
return streamingCache;
}
private static synchronized void ensureDownloadManagerInitialized(Context context) {
if (downloadManager == null) {
downloadManager = new DownloadManager(
@ -187,6 +223,10 @@ public final class DownloadUtil {
return files;
}
public static synchronized long getStreamingCacheSize(Context context) {
return getStreamingCache(context).getCacheSpace();
}
public static Notification buildGroupSummaryNotification(Context context, String channelId, String groupId, int icon, String title) {
return new NotificationCompat.Builder(context, channelId)
.setContentTitle(title)