From f898bddbfc90276fbf4d4d0ff0459b7e76501e69 Mon Sep 17 00:00:00 2001
From: tonihei <tonihei@google.com>
Date: Wed, 6 Feb 2019 15:59:33 +0000
Subject: [PATCH] Do not prepare MediaPeriods in a loop.

They may prepare immediately and let pendingMediaPeriods become empty before
all other periods are even created.

PiperOrigin-RevId: 232675283
---
 .../com/google/android/exoplayer2/offline/DownloadHelper.java   | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/library/core/src/main/java/com/google/android/exoplayer2/offline/DownloadHelper.java b/library/core/src/main/java/com/google/android/exoplayer2/offline/DownloadHelper.java
index d12013673f..f88371f36d 100644
--- a/library/core/src/main/java/com/google/android/exoplayer2/offline/DownloadHelper.java
+++ b/library/core/src/main/java/com/google/android/exoplayer2/offline/DownloadHelper.java
@@ -834,6 +834,8 @@ public final class DownloadHelper {
                 /* startPositionUs= */ 0);
         mediaPeriods[i] = mediaPeriod;
         pendingMediaPeriods.add(mediaPeriod);
+      }
+      for (MediaPeriod mediaPeriod : mediaPeriods) {
         mediaPeriod.prepare(/* callback= */ this, /* positionUs= */ 0);
       }
     }