1 files changed, 137 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/chunk/Chunk.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/chunk/Chunk.java
new file mode 100644
index 0000000000..3f4450eddd
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/source/chunk/Chunk.java
@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2016 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 android.net.Uri;
+import androidx.annotation.Nullable;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.C;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.Format;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.upstream.DataSource;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.upstream.DataSpec;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.upstream.Loader.Loadable;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.upstream.StatsDataSource;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.util.Assertions;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * An abstract base class for {@link Loadable} implementations that load chunks of data required
+ * for the playback of streams.
+ */
+public abstract class Chunk implements Loadable {
+
+  /**
+   * The {@link DataSpec} that defines the data to be loaded.
+   */
+  public final DataSpec dataSpec;
+  /**
+   * The type of the chunk. One of the {@code DATA_TYPE_*} constants defined in {@link C}. For
+   * reporting only.
+   */
+  public final int type;
+  /**
+   * The format of the track to which this chunk belongs, or null if the chunk does not belong to
+   * a track.
+   */
+  public final Format trackFormat;
+  /**
+   * One of the {@link C} {@code SELECTION_REASON_*} constants if the chunk belongs to a track.
+   * {@link C#SELECTION_REASON_UNKNOWN} if the chunk does not belong to a track.
+   */
+  public final int trackSelectionReason;
+  /**
+   * Optional data associated with the selection of the track to which this chunk belongs. Null if
+   * the chunk does not belong to a track.
+   */
+  @Nullable public final Object trackSelectionData;
+  /**
+   * The start time of the media contained by the chunk, or {@link C#TIME_UNSET} if the data
+   * being loaded does not contain media samples.
+   */
+  public final long startTimeUs;
+  /**
+   * The end time of the media contained by the chunk, or {@link C#TIME_UNSET} if the data being
+   * loaded does not contain media samples.
+   */
+  public final long endTimeUs;
+
+  protected final StatsDataSource dataSource;
+
+  /**
+   * @param dataSource The source from which the data should be loaded.
+   * @param dataSpec Defines the data to be loaded.
+   * @param type See {@link #type}.
+   * @param trackFormat See {@link #trackFormat}.
+   * @param trackSelectionReason See {@link #trackSelectionReason}.
+   * @param trackSelectionData See {@link #trackSelectionData}.
+   * @param startTimeUs See {@link #startTimeUs}.
+   * @param endTimeUs See {@link #endTimeUs}.
+   */
+  public Chunk(
+      DataSource dataSource,
+      DataSpec dataSpec,
+      int type,
+      Format trackFormat,
+      int trackSelectionReason,
+      @Nullable Object trackSelectionData,
+      long startTimeUs,
+      long endTimeUs) {
+    this.dataSource = new StatsDataSource(dataSource);
+    this.dataSpec = Assertions.checkNotNull(dataSpec);
+    this.type = type;
+    this.trackFormat = trackFormat;
+    this.trackSelectionReason = trackSelectionReason;
+    this.trackSelectionData = trackSelectionData;
+    this.startTimeUs = startTimeUs;
+    this.endTimeUs = endTimeUs;
+  }
+
+  /**
+   * Returns the duration of the chunk in microseconds.
+   */
+  public final long getDurationUs() {
+    return endTimeUs - startTimeUs;
+  }
+
+  /**
+   * Returns the number of bytes that have been loaded. Must only be called after the load
+   * completed, failed, or was canceled.
+   */
+  public final long bytesLoaded() {
+    return dataSource.getBytesRead();
+  }
+
+  /**
+   * Returns the {@link Uri} associated with the last {@link DataSource#open} call. If redirection
+   * occurred, this is the redirected uri. Must only be called after the load completed, failed, or
+   * was canceled.
+   *
+   * @see DataSource#getUri()
+   */
+  public final Uri getUri() {
+    return dataSource.getLastOpenedUri();
+  }
+
+  /**
+   * Returns the response headers associated with the last {@link DataSource#open} call. Must only
+   * be called after the load completed, failed, or was canceled.
+   *
+   * @see DataSource#getResponseHeaders()
+   */
+  public final Map<String, List<String>> getResponseHeaders() {
+    return dataSource.getLastResponseHeaders();
+  }
+}