1 files changed, 61 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/chunk/MediaChunkListIterator.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/chunk/MediaChunkListIterator.java
new file mode 100644
index 0000000000..1b3004418e
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/chunk/MediaChunkListIterator.java
@@ -0,0 +1,61 @@
+/*
+ * 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.chunk;
+
+import org.mozilla.thirdparty.com.google.android.exoplayer2.upstream.DataSpec;
+import java.util.List;
+
+/** A {@link MediaChunkIterator} which iterates over a {@link List} of {@link MediaChunk}s. */
+public final class MediaChunkListIterator extends BaseMediaChunkIterator {
+
+  private final List<? extends MediaChunk> chunks;
+  private final boolean reverseOrder;
+
+  /**
+   * Creates iterator.
+   *
+   * @param chunks The list of chunks to iterate over.
+   * @param reverseOrder Whether to iterate in reverse order.
+   */
+  public MediaChunkListIterator(List<? extends MediaChunk> chunks, boolean reverseOrder) {
+    super(0, chunks.size() - 1);
+    this.chunks = chunks;
+    this.reverseOrder = reverseOrder;
+  }
+
+  @Override
+  public DataSpec getDataSpec() {
+    return getCurrentChunk().dataSpec;
+  }
+
+  @Override
+  public long getChunkStartTimeUs() {
+    return getCurrentChunk().startTimeUs;
+  }
+
+  @Override
+  public long getChunkEndTimeUs() {
+    return getCurrentChunk().endTimeUs;
+  }
+
+  private MediaChunk getCurrentChunk() {
+    int index = (int) super.getCurrentIndex();
+    if (reverseOrder) {
+      index = chunks.size() - 1 - index;
+    }
+    return chunks.get(index);
+  }
+}