From 5a16aee2c9c5ab73626a92da01c25bad03b8f969 Mon Sep 17 00:00:00 2001
From: andrewlewis <andrewlewis@google.com>
Date: Fri, 13 Jan 2017 08:39:30 -0800
Subject: [PATCH] Use stereo for mono audio passthrough on fugu.

Also backport the Shield workaround to v1.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144446498
---
 .../com/google/android/exoplayer2/audio/AudioTrack.java  | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/library/src/main/java/com/google/android/exoplayer2/audio/AudioTrack.java b/library/src/main/java/com/google/android/exoplayer2/audio/AudioTrack.java
index 0d46d27c85..b5873904fc 100644
--- a/library/src/main/java/com/google/android/exoplayer2/audio/AudioTrack.java
+++ b/library/src/main/java/com/google/android/exoplayer2/audio/AudioTrack.java
@@ -445,7 +445,7 @@ public final class AudioTrack {
 
     // Workaround for overly strict channel configuration checks on nVidia Shield.
     if (Util.SDK_INT <= 23 && "foster".equals(Util.DEVICE) && "NVIDIA".equals(Util.MANUFACTURER)) {
-      switch(channelCount) {
+      switch (channelCount) {
         case 7:
           channelConfig = C.CHANNEL_OUT_7POINT1_SURROUND;
           break;
@@ -459,6 +459,13 @@ public final class AudioTrack {
     }
 
     boolean passthrough = !MimeTypes.AUDIO_RAW.equals(mimeType);
+
+    // Workaround for Nexus Player not reporting support for mono passthrough.
+    // (See [Internal: b/34268671].)
+    if (Util.SDK_INT <= 25 && "fugu".equals(Util.DEVICE) && passthrough && channelCount == 1) {
+      channelConfig = AudioFormat.CHANNEL_OUT_STEREO;
+    }
+
     @C.Encoding int sourceEncoding;
     if (passthrough) {
       sourceEncoding = getEncodingForMimeType(mimeType);