1 files changed, 105 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/trackselection/TrackSelectorResult.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/trackselection/TrackSelectorResult.java
new file mode 100644
index 0000000000..9c005497cc
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/trackselection/TrackSelectorResult.java
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2017 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.trackselection;
+
+import androidx.annotation.Nullable;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.RendererConfiguration;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.util.Util;
+import org.checkerframework.checker.nullness.compatqual.NullableType;
+
+/**
+ * The result of a {@link TrackSelector} operation.
+ */
+public final class TrackSelectorResult {
+
+  /** The number of selections in the result. Greater than or equal to zero. */
+  public final int length;
+  /**
+   * A {@link RendererConfiguration} for each renderer. A null entry indicates the corresponding
+   * renderer should be disabled.
+   */
+  public final @NullableType RendererConfiguration[] rendererConfigurations;
+  /**
+   * A {@link TrackSelectionArray} containing the track selection for each renderer.
+   */
+  public final TrackSelectionArray selections;
+  /**
+   * An opaque object that will be returned to {@link TrackSelector#onSelectionActivated(Object)}
+   * should the selections be activated.
+   */
+  public final Object info;
+
+  /**
+   * @param rendererConfigurations A {@link RendererConfiguration} for each renderer. A null entry
+   *     indicates the corresponding renderer should be disabled.
+   * @param selections A {@link TrackSelectionArray} containing the selection for each renderer.
+   * @param info An opaque object that will be returned to {@link
+   *     TrackSelector#onSelectionActivated(Object)} should the selection be activated.
+   */
+  public TrackSelectorResult(
+      @NullableType RendererConfiguration[] rendererConfigurations,
+      @NullableType TrackSelection[] selections,
+      Object info) {
+    this.rendererConfigurations = rendererConfigurations;
+    this.selections = new TrackSelectionArray(selections);
+    this.info = info;
+    length = rendererConfigurations.length;
+  }
+
+  /** Returns whether the renderer at the specified index is enabled. */
+  public boolean isRendererEnabled(int index) {
+    return rendererConfigurations[index] != null;
+  }
+
+  /**
+   * Returns whether this result is equivalent to {@code other} for all renderers.
+   *
+   * @param other The other {@link TrackSelectorResult}. May be null, in which case {@code false}
+   *     will be returned.
+   * @return Whether this result is equivalent to {@code other} for all renderers.
+   */
+  public boolean isEquivalent(@Nullable TrackSelectorResult other) {
+    if (other == null || other.selections.length != selections.length) {
+      return false;
+    }
+    for (int i = 0; i < selections.length; i++) {
+      if (!isEquivalent(other, i)) {
+        return false;
+      }
+    }
+    return true;
+  }
+
+  /**
+   * Returns whether this result is equivalent to {@code other} for the renderer at the given index.
+   * The results are equivalent if they have equal track selections and configurations for the
+   * renderer.
+   *
+   * @param other The other {@link TrackSelectorResult}. May be null, in which case {@code false}
+   *     will be returned.
+   * @param index The renderer index to check for equivalence.
+   * @return Whether this result is equivalent to {@code other} for the renderer at the specified
+   *     index.
+   */
+  public boolean isEquivalent(@Nullable TrackSelectorResult other, int index) {
+    if (other == null) {
+      return false;
+    }
+    return Util.areEqual(rendererConfigurations[index], other.rendererConfigurations[index])
+        && Util.areEqual(selections.get(index), other.selections.get(index));
+  }
+
+}