From a913fd952fff38c9e9978a7734a10cdab7c348c3 Mon Sep 17 00:00:00 2001
From: andrewlewis <andrewlewis@google.com>
Date: Thu, 15 Jun 2017 02:36:46 -0700
Subject: [PATCH] Add support for mono input to the GVR extension

Issue: #2710

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=159082518
---
 extensions/gvr/build.gradle                                    | 2 +-
 .../google/android/exoplayer2/ext/gvr/GvrAudioProcessor.java   | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/extensions/gvr/build.gradle b/extensions/gvr/build.gradle
index f622a73758..e15c8b1ad8 100644
--- a/extensions/gvr/build.gradle
+++ b/extensions/gvr/build.gradle
@@ -25,7 +25,7 @@ android {
 
 dependencies {
     compile project(':library-core')
-    compile 'com.google.vr:sdk-audio:1.30.0'
+    compile 'com.google.vr:sdk-audio:1.60.1'
 }
 
 ext {
diff --git a/extensions/gvr/src/main/java/com/google/android/exoplayer2/ext/gvr/GvrAudioProcessor.java b/extensions/gvr/src/main/java/com/google/android/exoplayer2/ext/gvr/GvrAudioProcessor.java
index 980424904d..a56bc7f0a9 100644
--- a/extensions/gvr/src/main/java/com/google/android/exoplayer2/ext/gvr/GvrAudioProcessor.java
+++ b/extensions/gvr/src/main/java/com/google/android/exoplayer2/ext/gvr/GvrAudioProcessor.java
@@ -82,6 +82,9 @@ public final class GvrAudioProcessor implements AudioProcessor {
     maybeReleaseGvrAudioSurround();
     int surroundFormat;
     switch (channelCount) {
+      case 1:
+        surroundFormat = GvrAudioSurround.SurroundFormat.SURROUND_MONO;
+        break;
       case 2:
         surroundFormat = GvrAudioSurround.SurroundFormat.SURROUND_STEREO;
         break;