1 files changed, 73 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/decoder/Decoder.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/decoder/Decoder.java
new file mode 100644
index 0000000000..8040c04ebe
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/decoder/Decoder.java
@@ -0,0 +1,73 @@
+/*
+ * 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.decoder;
+
+import androidx.annotation.Nullable;
+
+/**
+ * A media decoder.
+ *
+ * @param <I> The type of buffer input to the decoder.
+ * @param <O> The type of buffer output from the decoder.
+ * @param <E> The type of exception thrown from the decoder.
+ */
+public interface Decoder<I, O, E extends Exception> {
+
+  /**
+   * Returns the name of the decoder.
+   *
+   * @return The name of the decoder.
+   */
+  String getName();
+
+  /**
+   * Dequeues the next input buffer to be filled and queued to the decoder.
+   *
+   * @return The input buffer, which will have been cleared, or null if a buffer isn't available.
+   * @throws E If a decoder error has occurred.
+   */
+  @Nullable
+  I dequeueInputBuffer() throws E;
+
+  /**
+   * Queues an input buffer to the decoder.
+   *
+   * @param inputBuffer The input buffer.
+   * @throws E If a decoder error has occurred.
+   */
+  void queueInputBuffer(I inputBuffer) throws E;
+
+  /**
+   * Dequeues the next output buffer from the decoder.
+   *
+   * @return The output buffer, or null if an output buffer isn't available.
+   * @throws E If a decoder error has occurred.
+   */
+  @Nullable
+  O dequeueOutputBuffer() throws E;
+
+  /**
+   * Flushes the decoder. Ownership of dequeued input buffers is returned to the decoder. The caller
+   * is still responsible for releasing any dequeued output buffers.
+   */
+  void flush();
+
+  /**
+   * Releases the decoder. Must be called when the decoder is no longer needed.
+   */
+  void release();
+
+}