com.google.android.exoplayer2.upstream.cache.LeastRecentlyUsedCacheEvictor Java Examples

private void enableCache(int maxCacheSizeMb) {
    LeastRecentlyUsedCacheEvictor evictor = new LeastRecentlyUsedCacheEvictor(maxCacheSizeMb * 1024 * 1024);
    File file = new File(mContext.getCacheDir(), "media");
    Log.d("ZAQ", "enableCache (" + maxCacheSizeMb + " MB), file: " + file.getAbsolutePath());
    SimpleCache simpleCache = new SimpleCache(file, evictor);
    mDataSourceFactory = new CacheDataSourceFactory(
            simpleCache,
            mDataSourceFactory,
            new FileDataSourceFactory(),
            new CacheDataSinkFactory(simpleCache, 2 * 1024 * 1024),
            CacheDataSource.FLAG_BLOCK_ON_CACHE | CacheDataSource.FLAG_IGNORE_CACHE_ON_ERROR,
            new CacheDataSource.EventListener() {
                @Override
                public void onCacheIgnored(int reason) {
                    Log.d("ZAQ", "onCacheIgnored");
                }

                @Override
                public void onCachedBytesRead(long cacheSizeBytes, long cachedBytesRead) {
                    Log.d("ZAQ", "onCachedBytesRead , cacheSizeBytes: " + cacheSizeBytes + "   cachedBytesRead: " + cachedBytesRead);
                }
            });
}
 

public void setUri(Uri uri) {
    if (uri == null) {
        return;
    }

    player.stop();
    prepared = false;

    DefaultHttpDataSourceFactory httpDataSourceFactory = new DefaultHttpDataSourceFactory("Aerial Dream");
    DataSource.Factory dataSourceFactory = cacheSize > 0
            ? new CacheDataSourceFactory(new SimpleCache(getContext().getCacheDir(), new LeastRecentlyUsedCacheEvictor(cacheSize), new ExoDatabaseProvider(getContext())), httpDataSourceFactory, 0)
            : httpDataSourceFactory;

    mediaSource = new ProgressiveMediaSource.Factory(dataSourceFactory)
            .createMediaSource(uri);
    player.prepare(mediaSource);
}
 

@Provides
@Singleton
ExoCreator provideExoCreator() {
    SimpleCache cache = new SimpleCache(new File(mApplication.getCacheDir(), "/toro_cache"),
            new LeastRecentlyUsedCacheEvictor(200 * 1024 * 1024), new ExoDatabaseProvider(mApplication));
    Config config = new Config.Builder(mApplication).setMediaSourceBuilder(MediaSourceBuilder.LOOPING).setCache(cache)
            .build();
    return ToroExo.with(mApplication).getCreator(config);
}
 

@Override
public DataSource createDataSource() {
    LeastRecentlyUsedCacheEvictor evictor = new LeastRecentlyUsedCacheEvictor(maxCacheSize);
    SimpleCache simpleCache =
            new SimpleCache(new File(context.getCacheDir(), "media"), evictor);
    return new CacheDataSource(simpleCache, defaultDatasourceFactory.createDataSource(),
            new FileDataSource(), new CacheDataSink(simpleCache, maxFileSize),
            CacheDataSource.FLAG_BLOCK_ON_CACHE | CacheDataSource.FLAG_IGNORE_CACHE_ON_ERROR,
            null);
}
 

private Cache newCache() {
    return new SimpleCache(
            new File(mAppContext.getExternalCacheDir(), "exo-video-cache"),//缓存目录
            new LeastRecentlyUsedCacheEvictor(512 * 1024 * 1024),//缓存大小，默认512M，使用LRU算法实现
            new ExoDatabaseProvider(mAppContext));
}
 

@Override
public void onCreate() {
    super.onCreate();

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        @SuppressLint("WrongConstant") NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_DEFAULT_CHANNEL_ID, getString(R.string.notification_channel_name), NotificationManagerCompat.IMPORTANCE_DEFAULT);
        NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.createNotificationChannel(notificationChannel);

        AudioAttributes audioAttributes = new AudioAttributes.Builder()
                .setUsage(AudioAttributes.USAGE_MEDIA)
                .setContentType(AudioAttributes.CONTENT_TYPE_MUSIC)
                .build();
        audioFocusRequest = new AudioFocusRequest.Builder(AudioManager.AUDIOFOCUS_GAIN)
                .setOnAudioFocusChangeListener(audioFocusChangeListener)
                .setAcceptsDelayedFocusGain(false)
                .setWillPauseWhenDucked(true)
                .setAudioAttributes(audioAttributes)
                .build();
    }

    audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);

    mediaSession = new MediaSessionCompat(this, "PlayerService");
    mediaSession.setFlags(MediaSessionCompat.FLAG_HANDLES_MEDIA_BUTTONS | MediaSessionCompat.FLAG_HANDLES_TRANSPORT_CONTROLS);
    mediaSession.setCallback(mediaSessionCallback);

    Context appContext = getApplicationContext();

    Intent activityIntent = new Intent(appContext, MainActivity.class);
    mediaSession.setSessionActivity(PendingIntent.getActivity(appContext, 0, activityIntent, 0));

    Intent mediaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON, null, appContext, MediaButtonReceiver.class);
    mediaSession.setMediaButtonReceiver(PendingIntent.getBroadcast(appContext, 0, mediaButtonIntent, 0));

    exoPlayer = ExoPlayerFactory.newSimpleInstance(this, new DefaultRenderersFactory(this), new DefaultTrackSelector(), new DefaultLoadControl());
    exoPlayer.addListener(exoPlayerListener);
    DataSource.Factory httpDataSourceFactory = new OkHttpDataSourceFactory(new OkHttpClient(), Util.getUserAgent(this, getString(R.string.app_name)));
    Cache cache = new SimpleCache(new File(this.getCacheDir().getAbsolutePath() + "/exoplayer"), new LeastRecentlyUsedCacheEvictor(1024 * 1024 * 100)); // 100 Mb max
    this.dataSourceFactory = new CacheDataSourceFactory(cache, httpDataSourceFactory, CacheDataSource.FLAG_BLOCK_ON_CACHE | CacheDataSource.FLAG_IGNORE_CACHE_ON_ERROR);
    this.extractorsFactory = new DefaultExtractorsFactory();
}