From 01ce549e8f5e5707d2bf12e90318cb9db6098458 Mon Sep 17 00:00:00 2001
From: eguven <eguven@google.com>
Date: Wed, 20 Jun 2018 02:53:26 -0700
Subject: [PATCH] Fix HlsMediaPlaylist download using HlsDownloadHelper

Issue: #4396

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=201324467
---
 .../android/exoplayer2/source/hls/offline/HlsDownloadHelper.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/library/hls/src/main/java/com/google/android/exoplayer2/source/hls/offline/HlsDownloadHelper.java b/library/hls/src/main/java/com/google/android/exoplayer2/source/hls/offline/HlsDownloadHelper.java
index 9b77293a5a6..dd30341210b 100644
--- a/library/hls/src/main/java/com/google/android/exoplayer2/source/hls/offline/HlsDownloadHelper.java
+++ b/library/hls/src/main/java/com/google/android/exoplayer2/source/hls/offline/HlsDownloadHelper.java
@@ -74,6 +74,7 @@ public int getPeriodCount() {
   public TrackGroupArray getTrackGroups(int periodIndex) {
     Assertions.checkNotNull(playlist);
     if (playlist instanceof HlsMediaPlaylist) {
+      renditionGroups = new int[0];
       return TrackGroupArray.EMPTY;
     }
     // TODO: Generate track groups as in playback. Reverse the mapping in getDownloadAction.