1 files changed, 36 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/offline/FilterableManifest.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/offline/FilterableManifest.java
new file mode 100644
index 0000000000..1bd32f7d45
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/offline/FilterableManifest.java
@@ -0,0 +1,36 @@
+/*
+ * 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.offline;
+
+import java.util.List;
+
+/**
+ * A manifest that can generate copies of itself including only the streams specified by the given
+ * keys.
+ *
+ * @param <T> The manifest type.
+ */
+public interface FilterableManifest<T> {
+
+  /**
+   * Returns a copy of the manifest including only the streams specified by the given keys. If the
+   * manifest is unchanged then the instance may return itself.
+   *
+   * @param streamKeys A non-empty list of stream keys.
+   * @return The filtered manifest.
+   */
+  T copy(List<StreamKey> streamKeys);
+}