From 3830307cd3c012ed4e6e5a764793b640ead00e2b Mon Sep 17 00:00:00 2001
From: Drew Hill <drewhill80@gmail.com>
Date: Thu, 19 Oct 2017 20:28:17 -0400
Subject: [PATCH] fix not initialized error

---
 .../android/exoplayer2/video/VideoFrameReleaseTimeHelper.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/library/core/src/main/java/com/google/android/exoplayer2/video/VideoFrameReleaseTimeHelper.java b/library/core/src/main/java/com/google/android/exoplayer2/video/VideoFrameReleaseTimeHelper.java
index 408cd1a09a..b3ce65daa4 100644
--- a/library/core/src/main/java/com/google/android/exoplayer2/video/VideoFrameReleaseTimeHelper.java
+++ b/library/core/src/main/java/com/google/android/exoplayer2/video/VideoFrameReleaseTimeHelper.java
@@ -79,6 +79,9 @@ public final class VideoFrameReleaseTimeHelper {
 
   private VideoFrameReleaseTimeHelper(double defaultDisplayRefreshRate) {
     useDefaultDisplayVsync = defaultDisplayRefreshRate != DISPLAY_REFRESH_RATE_UNKNOWN;
+    if (useDefaultDisplayVsync) {
+      vsyncSampler = VSyncSampler.getInstance();
+    }
   }
 
   /**
@@ -128,7 +131,6 @@ public final class VideoFrameReleaseTimeHelper {
   private void setSync(double defaultDisplayRefreshRate) {
 
     if (useDefaultDisplayVsync) {
-      vsyncSampler = VSyncSampler.getInstance();
       vsyncDurationNs = (long) (C.NANOS_PER_SECOND / defaultDisplayRefreshRate);
       vsyncOffsetNs = (vsyncDurationNs * VSYNC_OFFSET_PERCENTAGE) / 100;
     }