Fix NPE releasing HlsMediaPeriod

Issue: #1907 ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=135798950

Fix NPE releasing HlsMediaPeriod
Issue: #1907 ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=135798950
996fe47f · olly · Oliver Woodman · 29f3eb5e · 996fe47f
Commit 996fe47f authored Oct 11, 2016 by olly Committed by Oliver Woodman Oct 11, 2016
Showing with 4 additions and 2 deletions
library/src/main/java/com/google/android/exoplayer2/source/hls/HlsMediaPeriod.java
--- a/library/src/main/java/com/google/android/exoplayer2/source/hls/HlsMediaPeriod.java
+++ b/library/src/main/java/com/google/android/exoplayer2/source/hls/HlsMediaPeriod.java
@@ -103,8 +103,10 @@ import java.util.List;
  public void release() {
    continueLoadingHandler.removeCallbacksAndMessages(null);
    manifestFetcher.release();
-    for (HlsSampleStreamWrapper sampleStreamWrapper : sampleStreamWrappers) {
-      sampleStreamWrapper.release();
+    if (sampleStreamWrappers != null) {
+      for (HlsSampleStreamWrapper sampleStreamWrapper : sampleStreamWrappers) {
+        sampleStreamWrapper.release();
+      }
    }
  }