1 files changed, 110 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/upstream/DefaultLoadErrorHandlingPolicy.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/upstream/DefaultLoadErrorHandlingPolicy.java
new file mode 100644
index 0000000000..082014b7ef
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/upstream/DefaultLoadErrorHandlingPolicy.java
@@ -0,0 +1,110 @@
+/*
+ * 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.upstream;
+
+import org.mozilla.thirdparty.com.google.android.exoplayer2.C;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.ParserException;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.upstream.HttpDataSource.InvalidResponseCodeException;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.upstream.Loader.UnexpectedLoaderException;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+/** Default implementation of {@link LoadErrorHandlingPolicy}. */
+public class DefaultLoadErrorHandlingPolicy implements LoadErrorHandlingPolicy {
+
+  /** The default minimum number of times to retry loading data prior to propagating the error. */
+  public static final int DEFAULT_MIN_LOADABLE_RETRY_COUNT = 3;
+  /**
+   * The default minimum number of times to retry loading prior to failing for progressive live
+   * streams.
+   */
+  public static final int DEFAULT_MIN_LOADABLE_RETRY_COUNT_PROGRESSIVE_LIVE = 6;
+  /** The default duration for which a track is blacklisted in milliseconds. */
+  public static final long DEFAULT_TRACK_BLACKLIST_MS = 60000;
+
+  private static final int DEFAULT_BEHAVIOR_MIN_LOADABLE_RETRY_COUNT = -1;
+
+  private final int minimumLoadableRetryCount;
+
+  /**
+   * Creates an instance with default behavior.
+   *
+   * <p>{@link #getMinimumLoadableRetryCount} will return {@link
+   * #DEFAULT_MIN_LOADABLE_RETRY_COUNT_PROGRESSIVE_LIVE} for {@code dataType} {@link
+   * C#DATA_TYPE_MEDIA_PROGRESSIVE_LIVE}. For other {@code dataType} values, it will return {@link
+   * #DEFAULT_MIN_LOADABLE_RETRY_COUNT}.
+   */
+  public DefaultLoadErrorHandlingPolicy() {
+    this(DEFAULT_BEHAVIOR_MIN_LOADABLE_RETRY_COUNT);
+  }
+
+  /**
+   * Creates an instance with the given value for {@link #getMinimumLoadableRetryCount(int)}.
+   *
+   * @param minimumLoadableRetryCount See {@link #getMinimumLoadableRetryCount}.
+   */
+  public DefaultLoadErrorHandlingPolicy(int minimumLoadableRetryCount) {
+    this.minimumLoadableRetryCount = minimumLoadableRetryCount;
+  }
+
+  /**
+   * Blacklists resources whose load error was an {@link InvalidResponseCodeException} with response
+   * code HTTP 404 or 410. The duration of the blacklisting is {@link #DEFAULT_TRACK_BLACKLIST_MS}.
+   */
+  @Override
+  public long getBlacklistDurationMsFor(
+      int dataType, long loadDurationMs, IOException exception, int errorCount) {
+    if (exception instanceof InvalidResponseCodeException) {
+      int responseCode = ((InvalidResponseCodeException) exception).responseCode;
+      return responseCode == 404 // HTTP 404 Not Found.
+              || responseCode == 410 // HTTP 410 Gone.
+              || responseCode == 416 // HTTP 416 Range Not Satisfiable.
+          ? DEFAULT_TRACK_BLACKLIST_MS
+          : C.TIME_UNSET;
+    }
+    return C.TIME_UNSET;
+  }
+
+  /**
+   * Retries for any exception that is not a subclass of {@link ParserException}, {@link
+   * FileNotFoundException} or {@link UnexpectedLoaderException}. The retry delay is calculated as
+   * {@code Math.min((errorCount - 1) * 1000, 5000)}.
+   */
+  @Override
+  public long getRetryDelayMsFor(
+      int dataType, long loadDurationMs, IOException exception, int errorCount) {
+    return exception instanceof ParserException
+            || exception instanceof FileNotFoundException
+            || exception instanceof UnexpectedLoaderException
+        ? C.TIME_UNSET
+        : Math.min((errorCount - 1) * 1000, 5000);
+  }
+
+  /**
+   * See {@link #DefaultLoadErrorHandlingPolicy()} and {@link #DefaultLoadErrorHandlingPolicy(int)}
+   * for documentation about the behavior of this method.
+   */
+  @Override
+  public int getMinimumLoadableRetryCount(int dataType) {
+    if (minimumLoadableRetryCount == DEFAULT_BEHAVIOR_MIN_LOADABLE_RETRY_COUNT) {
+      return dataType == C.DATA_TYPE_MEDIA_PROGRESSIVE_LIVE
+          ? DEFAULT_MIN_LOADABLE_RETRY_COUNT_PROGRESSIVE_LIVE
+          : DEFAULT_MIN_LOADABLE_RETRY_COUNT;
+    } else {
+      return minimumLoadableRetryCount;
+    }
+  }
+}