From c5bc2d5f804aae283838d1db6d14065958b5f152 Mon Sep 17 00:00:00 2001
From: aquilescanta <aquilescanta@google.com>
Date: Tue, 14 Aug 2018 03:27:38 -0700
Subject: [PATCH] Add support for reporting AudioCapabilities changes on custom
 threads

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=208622197
---
 .../audio/AudioCapabilitiesReceiver.java      | 26 +++++++++++++++++--
 1 file changed, 24 insertions(+), 2 deletions(-)

diff --git a/library/core/src/main/java/com/google/android/exoplayer2/audio/AudioCapabilitiesReceiver.java b/library/core/src/main/java/com/google/android/exoplayer2/audio/AudioCapabilitiesReceiver.java
index 1eb0ec4660..aa610db8b1 100644
--- a/library/core/src/main/java/com/google/android/exoplayer2/audio/AudioCapabilitiesReceiver.java
+++ b/library/core/src/main/java/com/google/android/exoplayer2/audio/AudioCapabilitiesReceiver.java
@@ -20,6 +20,7 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.media.AudioManager;
+import android.os.Handler;
 import android.support.annotation.Nullable;
 import com.google.android.exoplayer2.util.Assertions;
 import com.google.android.exoplayer2.util.Util;
@@ -45,6 +46,7 @@ public final class AudioCapabilitiesReceiver {
   }
 
   private final Context context;
+  private final @Nullable Handler handler;
   private final Listener listener;
   private final @Nullable BroadcastReceiver receiver;
 
@@ -55,7 +57,18 @@ public final class AudioCapabilitiesReceiver {
    * @param listener The listener to notify when audio capabilities change.
    */
   public AudioCapabilitiesReceiver(Context context, Listener listener) {
+    this(context, /* handler= */ null, listener);
+  }
+
+  /**
+   * @param context A context for registering the receiver.
+   * @param handler The handler to which {@link Listener} events will be posted. If null, listener
+   *     methods are invoked on the main thread.
+   * @param listener The listener to notify when audio capabilities change.
+   */
+  public AudioCapabilitiesReceiver(Context context, @Nullable Handler handler, Listener listener) {
     this.context = Assertions.checkNotNull(context);
+    this.handler = handler;
     this.listener = Assertions.checkNotNull(listener);
     this.receiver = Util.SDK_INT >= 21 ? new HdmiAudioPlugBroadcastReceiver() : null;
   }
@@ -69,8 +82,17 @@ public final class AudioCapabilitiesReceiver {
    */
   @SuppressWarnings("InlinedApi")
   public AudioCapabilities register() {
-    Intent stickyIntent = receiver == null ? null
-        : context.registerReceiver(receiver, new IntentFilter(AudioManager.ACTION_HDMI_AUDIO_PLUG));
+    Intent stickyIntent = null;
+    if (receiver != null) {
+      IntentFilter intentFilter = new IntentFilter(AudioManager.ACTION_HDMI_AUDIO_PLUG);
+      if (handler != null) {
+        stickyIntent =
+            context.registerReceiver(
+                receiver, intentFilter, /* broadcastPermission= */ null, handler);
+      } else {
+        stickyIntent = context.registerReceiver(receiver, intentFilter);
+      }
+    }
     audioCapabilities = AudioCapabilities.getCapabilities(stickyIntent);
     return audioCapabilities;
   }