1 files changed, 58 insertions, 0 deletions
diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/video/VideoListener.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/video/VideoListener.java
new file mode 100644
index 0000000000..a469366b78
--- /dev/null
+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/video/VideoListener.java
@@ -0,0 +1,58 @@
+/*
+ * 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.video;
+
+/** A listener for metadata corresponding to video being rendered. */
+public interface VideoListener {
+
+  /**
+   * Called each time there's a change in the size of the video being rendered.
+   *
+   * @param width The video width in pixels.
+   * @param height The video height in pixels.
+   * @param unappliedRotationDegrees For videos that require a rotation, this is the clockwise
+   *     rotation in degrees that the application should apply for the video for it to be rendered
+   *     in the correct orientation. This value will always be zero on API levels 21 and above,
+   *     since the renderer will apply all necessary rotations internally. On earlier API levels
+   *     this is not possible. Applications that use {@link android.view.TextureView} can apply the
+   *     rotation by calling {@link android.view.TextureView#setTransform}. Applications that do not
+   *     expect to encounter rotated videos can safely ignore this parameter.
+   * @param pixelWidthHeightRatio The width to height ratio of each pixel. For the normal case of
+   *     square pixels this will be equal to 1.0. Different values are indicative of anamorphic
+   *     content.
+   */
+  default void onVideoSizeChanged(
+      int width, int height, int unappliedRotationDegrees, float pixelWidthHeightRatio) {}
+
+  /**
+   * Called each time there's a change in the size of the surface onto which the video is being
+   * rendered.
+   *
+   * @param width The surface width in pixels. May be {@link
+   *     com.google.android.exoplayer2.C#LENGTH_UNSET} if unknown, or 0 if the video is not rendered
+   *     onto a surface.
+   * @param height The surface height in pixels. May be {@link
+   *     com.google.android.exoplayer2.C#LENGTH_UNSET} if unknown, or 0 if the video is not rendered
+   *     onto a surface.
+   */
+  default void onSurfaceSizeChanged(int width, int height) {}
+
+  /**
+   * Called when a frame is rendered for the first time since setting the surface, and when a frame
+   * is rendered for the first time since a video track was selected.
+   */
+  default void onRenderedFirstFrame() {}
+}