1 files changed, 55 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/hls/playlist/FilteringHlsPlaylistParserFactory.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/hls/playlist/FilteringHlsPlaylistParserFactory.java
new file mode 100644
index 0000000000..a8c9ea1756
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/hls/playlist/FilteringHlsPlaylistParserFactory.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.mozilla.thirdparty.com.google.android.exoplayer2.source.hls.playlist;
+
+import org.mozilla.thirdparty.com.google.android.exoplayer2.offline.FilteringManifestParser;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.offline.StreamKey;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.upstream.ParsingLoadable;
+import java.util.List;
+
+/**
+ * A {@link HlsPlaylistParserFactory} that includes only the streams identified by the given stream
+ * keys.
+ */
+public final class FilteringHlsPlaylistParserFactory implements HlsPlaylistParserFactory {
+
+  private final HlsPlaylistParserFactory hlsPlaylistParserFactory;
+  private final List<StreamKey> streamKeys;
+
+  /**
+   * @param hlsPlaylistParserFactory A factory for the parsers of the playlists which will be
+   *     filtered.
+   * @param streamKeys The stream keys. If null or empty then filtering will not occur.
+   */
+  public FilteringHlsPlaylistParserFactory(
+      HlsPlaylistParserFactory hlsPlaylistParserFactory, List<StreamKey> streamKeys) {
+    this.hlsPlaylistParserFactory = hlsPlaylistParserFactory;
+    this.streamKeys = streamKeys;
+  }
+
+  @Override
+  public ParsingLoadable.Parser<HlsPlaylist> createPlaylistParser() {
+    return new FilteringManifestParser<>(
+        hlsPlaylistParserFactory.createPlaylistParser(), streamKeys);
+  }
+
+  @Override
+  public ParsingLoadable.Parser<HlsPlaylist> createPlaylistParser(
+      HlsMasterPlaylist masterPlaylist) {
+    return new FilteringManifestParser<>(
+        hlsPlaylistParserFactory.createPlaylistParser(masterPlaylist), streamKeys);
+  }
+}