1 files changed, 54 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/text/cea/Cea708InitializationData.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/text/cea/Cea708InitializationData.java
new file mode 100644
index 0000000000..5d63ca8e82
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/text/cea/Cea708InitializationData.java
@@ -0,0 +1,54 @@
+/*
+ * 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.text.cea;
+
+import java.util.Collections;
+import java.util.List;
+
+/** Initialization data for CEA-708 decoders. */
+public final class Cea708InitializationData {
+
+  /**
+   * Whether the closed caption service is formatted for displays with 16:9 aspect ratio. If false,
+   * the closed caption service is formatted for 4:3 displays.
+   */
+  public final boolean isWideAspectRatio;
+
+  private Cea708InitializationData(List<byte[]> initializationData) {
+    isWideAspectRatio = initializationData.get(0)[0] != 0;
+  }
+
+  /**
+   * Returns an object representation of CEA-708 initialization data
+   *
+   * @param initializationData Binary CEA-708 initialization data.
+   * @return The object representation.
+   */
+  public static Cea708InitializationData fromData(List<byte[]> initializationData) {
+    return new Cea708InitializationData(initializationData);
+  }
+
+  /**
+   * Builds binary CEA-708 initialization data.
+   *
+   * @param isWideAspectRatio Whether the closed caption service is formatted for displays with 16:9
+   *     aspect ratio.
+   * @return Binary CEA-708 initializaton data.
+   */
+  public static List<byte[]> buildData(boolean isWideAspectRatio) {
+    return Collections.singletonList(new byte[] {(byte) (isWideAspectRatio ? 1 : 0)});
+  }
+}