1 files changed, 147 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/extractor/TrackOutput.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/extractor/TrackOutput.java
new file mode 100644
index 0000000000..fd33bd6027
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/extractor/TrackOutput.java
@@ -0,0 +1,147 @@
+/*
+ * 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.extractor;
+
+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.util.ParsableByteArray;
+import java.io.EOFException;
+import java.io.IOException;
+import java.util.Arrays;
+
+/**
+ * Receives track level data extracted by an {@link Extractor}.
+ */
+public interface TrackOutput {
+
+  /**
+   * Holds data required to decrypt a sample.
+   */
+  final class CryptoData {
+
+    /**
+     * The encryption mode used for the sample.
+     */
+    @C.CryptoMode public final int cryptoMode;
+
+    /**
+     * The encryption key associated with the sample. Its contents must not be modified.
+     */
+    public final byte[] encryptionKey;
+
+    /**
+     * The number of encrypted blocks in the encryption pattern, 0 if pattern encryption does not
+     * apply.
+     */
+    public final int encryptedBlocks;
+
+    /**
+     * The number of clear blocks in the encryption pattern, 0 if pattern encryption does not
+     * apply.
+     */
+    public final int clearBlocks;
+
+    /**
+     * @param cryptoMode See {@link #cryptoMode}.
+     * @param encryptionKey See {@link #encryptionKey}.
+     * @param encryptedBlocks See {@link #encryptedBlocks}.
+     * @param clearBlocks See {@link #clearBlocks}.
+     */
+    public CryptoData(@C.CryptoMode int cryptoMode, byte[] encryptionKey, int encryptedBlocks,
+        int clearBlocks) {
+      this.cryptoMode = cryptoMode;
+      this.encryptionKey = encryptionKey;
+      this.encryptedBlocks = encryptedBlocks;
+      this.clearBlocks = clearBlocks;
+    }
+
+    @Override
+    public boolean equals(@Nullable Object obj) {
+      if (this == obj) {
+        return true;
+      }
+      if (obj == null || getClass() != obj.getClass()) {
+        return false;
+      }
+      CryptoData other = (CryptoData) obj;
+      return cryptoMode == other.cryptoMode && encryptedBlocks == other.encryptedBlocks
+          && clearBlocks == other.clearBlocks && Arrays.equals(encryptionKey, other.encryptionKey);
+    }
+
+    @Override
+    public int hashCode() {
+      int result = cryptoMode;
+      result = 31 * result + Arrays.hashCode(encryptionKey);
+      result = 31 * result + encryptedBlocks;
+      result = 31 * result + clearBlocks;
+      return result;
+    }
+
+  }
+
+  /**
+   * Called when the {@link Format} of the track has been extracted from the stream.
+   *
+   * @param format The extracted {@link Format}.
+   */
+  void format(Format format);
+
+  /**
+   * Called to write sample data to the output.
+   *
+   * @param input An {@link ExtractorInput} from which to read the sample data.
+   * @param length The maximum length to read from the input.
+   * @param allowEndOfInput True if encountering the end of the input having read no data is
+   *     allowed, and should result in {@link C#RESULT_END_OF_INPUT} being returned. False if it
+   *     should be considered an error, causing an {@link EOFException} to be thrown.
+   * @return The number of bytes appended.
+   * @throws IOException If an error occurred reading from the input.
+   * @throws InterruptedException If the thread was interrupted.
+   */
+  int sampleData(ExtractorInput input, int length, boolean allowEndOfInput)
+      throws IOException, InterruptedException;
+
+  /**
+   * Called to write sample data to the output.
+   *
+   * @param data A {@link ParsableByteArray} from which to read the sample data.
+   * @param length The number of bytes to read, starting from {@code data.getPosition()}.
+   */
+  void sampleData(ParsableByteArray data, int length);
+
+  /**
+   * Called when metadata associated with a sample has been extracted from the stream.
+   *
+   * <p>The corresponding sample data will have already been passed to the output via calls to
+   * {@link #sampleData(ExtractorInput, int, boolean)} or {@link #sampleData(ParsableByteArray,
+   * int)}.
+   *
+   * @param timeUs The media timestamp associated with the sample, in microseconds.
+   * @param flags Flags associated with the sample. See {@code C.BUFFER_FLAG_*}.
+   * @param size The size of the sample data, in bytes.
+   * @param offset The number of bytes that have been passed to {@link #sampleData(ExtractorInput,
+   *     int, boolean)} or {@link #sampleData(ParsableByteArray, int)} since the last byte belonging
+   *     to the sample whose metadata is being passed.
+   * @param encryptionData The encryption data required to decrypt the sample. May be null.
+   */
+  void sampleMetadata(
+      long timeUs,
+      @C.BufferFlags int flags,
+      int size,
+      int offset,
+      @Nullable CryptoData encryptionData);
+}