1 files changed, 49 insertions, 0 deletions
diff --git a/tuner/src/com/android/tv/tuner/source/TsDataSource.java b/tuner/src/com/android/tv/tuner/source/TsDataSource.java
new file mode 100644
index 00000000..be902944
--- /dev/null
+++ b/tuner/src/com/android/tv/tuner/source/TsDataSource.java
@@ -0,0 +1,49 @@
+/*
+ * 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 com.android.tv.tuner.source;
+
+import com.google.android.exoplayer.upstream.DataSource;
+
+/** {@link DataSource} for MPEG-TS stream, which will be used by {@link TsExtractor}. */
+public abstract class TsDataSource implements DataSource {
+
+    /**
+     * Returns the number of bytes being buffered by {@link TsStreamer} so far.
+     *
+     * @return the buffered position
+     */
+    public long getBufferedPosition() {
+        return 0;
+    }
+
+    /**
+     * Returns the offset position where the last {@link DataSource#read} read.
+     *
+     * @return the last read position
+     */
+    public long getLastReadPosition() {
+        return 0;
+    }
+
+    /**
+     * Shifts start position by the specified offset. Do not call this method when the class already
+     * provided MPEG-TS stream to the extractor.
+     *
+     * @param offset 0 <= offset <= buffered position
+     */
+    public void shiftStartPosition(long offset) {}
+}