Fix ClippingSampleStream

library/core/src/main/java/com/google/android/exoplayer2/source/ClippingMediaPeriod.java

@@ -112,7 +112,7 @@ public final class ClippingMediaPeriod implements MediaPeriod, MediaPeriod.Callb
       if (internalStreams[i] == null) {
       if (internalStreams[i] == null) {
         sampleStreams[i] = null;
         sampleStreams[i] = null;
       } else if (streams[i] == null || sampleStreams[i].stream != internalStreams[i]) {
       } else if (streams[i] == null || sampleStreams[i].stream != internalStreams[i]) {
-        sampleStreams[i] = new ClippingSampleStream(this, internalStreams[i], startUs, endUs,
+        sampleStreams[i] = new ClippingSampleStream(internalStreams[i], startUs, endUs,
             pendingInitialDiscontinuity);
             pendingInitialDiscontinuity);
       }
       }
       streams[i] = sampleStreams[i];
       streams[i] = sampleStreams[i];
@@ -222,9 +222,8 @@ public final class ClippingMediaPeriod implements MediaPeriod, MediaPeriod.Callb
   /**
   /**
    * Wraps a {@link SampleStream} and clips its samples.
    * Wraps a {@link SampleStream} and clips its samples.
    */
    */
-  private static final class ClippingSampleStream implements SampleStream {
+  private final class ClippingSampleStream implements SampleStream {
 
 
-    private final MediaPeriod mediaPeriod;
     private final SampleStream stream;
     private final SampleStream stream;
     private final long startUs;
     private final long startUs;
     private final long endUs;
     private final long endUs;
@@ -232,9 +231,8 @@ public final class ClippingMediaPeriod implements MediaPeriod, MediaPeriod.Callb
     private boolean pendingDiscontinuity;
     private boolean pendingDiscontinuity;
     private boolean sentEos;
     private boolean sentEos;
 
 
-    public ClippingSampleStream(MediaPeriod mediaPeriod, SampleStream stream, long startUs,
-        long endUs, boolean pendingDiscontinuity) {
-      this.mediaPeriod = mediaPeriod;
+    public ClippingSampleStream(SampleStream stream, long startUs, long endUs,
+        boolean pendingDiscontinuity) {
       this.stream = stream;
       this.stream = stream;
       this.startUs = startUs;
       this.startUs = startUs;
       this.endUs = endUs;
       this.endUs = endUs;