Move more classes under source package

- Chunk package is only useful to source packages.
- BehindLiveWindowException is a source exception.
- SequenceableLoader is related to sources.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=127195307

library/src/main/java/com/google/android/exoplayer2/chunk/ChunkSampleStream.java

@@ -19,10 +19,14 @@ import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.DecoderInputBuffer;
 import com.google.android.exoplayer2.DecoderInputBuffer;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.FormatHolder;
 import com.google.android.exoplayer2.FormatHolder;
-import com.google.android.exoplayer2.SequenceableLoader;
 import com.google.android.exoplayer2.extractor.DefaultTrackOutput;
 import com.google.android.exoplayer2.extractor.DefaultTrackOutput;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener.EventDispatcher;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener.EventDispatcher;
 import com.google.android.exoplayer2.source.SampleStream;
 import com.google.android.exoplayer2.source.SampleStream;
+import com.google.android.exoplayer2.source.SequenceableLoader;
+import com.google.android.exoplayer2.source.chunk.BaseMediaChunk;
+import com.google.android.exoplayer2.source.chunk.Chunk;
+import com.google.android.exoplayer2.source.chunk.ChunkHolder;
+import com.google.android.exoplayer2.source.chunk.ChunkSource;
 import com.google.android.exoplayer2.upstream.Allocator;
 import com.google.android.exoplayer2.upstream.Allocator;
 import com.google.android.exoplayer2.upstream.Loader;
 import com.google.android.exoplayer2.upstream.Loader;
 import com.google.android.exoplayer2.util.Assertions;
 import com.google.android.exoplayer2.util.Assertions;

library/src/main/java/com/google/android/exoplayer2/source/AdaptiveMediaSourceEventListener.java

@@ -17,7 +17,7 @@ package com.google.android.exoplayer2.source;
 
 
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;
-import com.google.android.exoplayer2.chunk.FormatEvaluator;
+import com.google.android.exoplayer2.source.chunk.FormatEvaluator;
 import com.google.android.exoplayer2.upstream.DataSpec;
 import com.google.android.exoplayer2.upstream.DataSpec;
 import com.google.android.exoplayer2.util.Assertions;
 import com.google.android.exoplayer2.util.Assertions;
 
 

library/src/main/java/com/google/android/exoplayer2/BehindLiveWindowException.java → library/src/main/java/com/google/android/exoplayer2/source/BehindLiveWindowException.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2;
+package com.google.android.exoplayer2.source;
 
 
 import java.io.IOException;
 import java.io.IOException;
 
 

library/src/main/java/com/google/android/exoplayer2/CompositeSequenceableLoader.java → library/src/main/java/com/google/android/exoplayer2/source/CompositeSequenceableLoader.java

@@ -13,7 +13,9 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2;
+package com.google.android.exoplayer2.source;
+
+import com.google.android.exoplayer2.C;
 
 
 /**
 /**
  * A {@link SequenceableLoader} that encapsulates multiple other {@link SequenceableLoader}s.
  * A {@link SequenceableLoader} that encapsulates multiple other {@link SequenceableLoader}s.

library/src/main/java/com/google/android/exoplayer2/source/ExtractorMediaSource.java

@@ -20,7 +20,6 @@ import com.google.android.exoplayer2.DecoderInputBuffer;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.FormatHolder;
 import com.google.android.exoplayer2.FormatHolder;
 import com.google.android.exoplayer2.ParserException;
 import com.google.android.exoplayer2.ParserException;
-import com.google.android.exoplayer2.SequenceableLoader;
 import com.google.android.exoplayer2.TrackSelection;
 import com.google.android.exoplayer2.TrackSelection;
 import com.google.android.exoplayer2.extractor.DefaultExtractorInput;
 import com.google.android.exoplayer2.extractor.DefaultExtractorInput;
 import com.google.android.exoplayer2.extractor.DefaultExtractorsFactory;
 import com.google.android.exoplayer2.extractor.DefaultExtractorsFactory;

library/src/main/java/com/google/android/exoplayer2/source/MediaPeriod.java

@@ -16,7 +16,6 @@
 package com.google.android.exoplayer2.source;
 package com.google.android.exoplayer2.source;
 
 
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.C;
-import com.google.android.exoplayer2.SequenceableLoader;
 import com.google.android.exoplayer2.TrackSelection;
 import com.google.android.exoplayer2.TrackSelection;
 import com.google.android.exoplayer2.upstream.Allocator;
 import com.google.android.exoplayer2.upstream.Allocator;
 
 

library/src/main/java/com/google/android/exoplayer2/source/MergingMediaPeriod.java

@@ -16,8 +16,6 @@
 package com.google.android.exoplayer2.source;
 package com.google.android.exoplayer2.source;
 
 
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.C;
-import com.google.android.exoplayer2.CompositeSequenceableLoader;
-import com.google.android.exoplayer2.SequenceableLoader;
 import com.google.android.exoplayer2.TrackSelection;
 import com.google.android.exoplayer2.TrackSelection;
 import com.google.android.exoplayer2.upstream.Allocator;
 import com.google.android.exoplayer2.upstream.Allocator;
 
 

library/src/main/java/com/google/android/exoplayer2/SequenceableLoader.java → library/src/main/java/com/google/android/exoplayer2/source/SequenceableLoader.java

@@ -13,7 +13,9 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2;
+package com.google.android.exoplayer2.source;
+
+import com.google.android.exoplayer2.C;
 
 
 /**
 /**
  * An loader that can proceed in approximate synchronization with other loaders.
  * An loader that can proceed in approximate synchronization with other loaders.

library/src/main/java/com/google/android/exoplayer2/chunk/BaseMediaChunk.java → library/src/main/java/com/google/android/exoplayer2/source/chunk/BaseMediaChunk.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2.chunk;
+package com.google.android.exoplayer2.source.chunk;
 
 
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.extractor.DefaultTrackOutput;
 import com.google.android.exoplayer2.extractor.DefaultTrackOutput;

library/src/main/java/com/google/android/exoplayer2/chunk/Chunk.java → library/src/main/java/com/google/android/exoplayer2/source/chunk/Chunk.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2.chunk;
+package com.google.android.exoplayer2.source.chunk;
 
 
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;

library/src/main/java/com/google/android/exoplayer2/chunk/ChunkExtractorWrapper.java → library/src/main/java/com/google/android/exoplayer2/source/chunk/ChunkExtractorWrapper.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2.chunk;
+package com.google.android.exoplayer2.source.chunk;
 
 
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.drm.DrmInitData;
 import com.google.android.exoplayer2.drm.DrmInitData;

library/src/main/java/com/google/android/exoplayer2/chunk/ChunkHolder.java → library/src/main/java/com/google/android/exoplayer2/source/chunk/ChunkHolder.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2.chunk;
+package com.google.android.exoplayer2.source.chunk;
 
 
 /**
 /**
  * Holds a chunk or an indication that the end of the stream has been reached.
  * Holds a chunk or an indication that the end of the stream has been reached.

library/src/main/java/com/google/android/exoplayer2/source/chunk/ChunkSampleStream.java

+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.android.exoplayer2.source.chunk;
+
+import com.google.android.exoplayer2.C;
+import com.google.android.exoplayer2.DecoderInputBuffer;
+import com.google.android.exoplayer2.Format;
+import com.google.android.exoplayer2.FormatHolder;
+import com.google.android.exoplayer2.extractor.DefaultTrackOutput;
+import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener.EventDispatcher;
+import com.google.android.exoplayer2.source.SampleStream;
+import com.google.android.exoplayer2.source.SequenceableLoader;
+import com.google.android.exoplayer2.upstream.Allocator;
+import com.google.android.exoplayer2.upstream.Loader;
+import com.google.android.exoplayer2.util.Assertions;
+
+import java.io.IOException;
+import java.util.Collections;
+import java.util.LinkedList;
+import java.util.List;
+
+/**
+ * A {@link SampleStream} that loads media in {@link Chunk}s, obtained from a {@link ChunkSource}.
+ */
+public class ChunkSampleStream<T extends ChunkSource> implements SampleStream, SequenceableLoader,
+    Loader.Callback<Chunk> {
+
+  private final int trackType;
+  private final T chunkSource;
+  private final SequenceableLoader.Callback<ChunkSampleStream<T>> callback;
+  private final EventDispatcher eventDispatcher;
+  private final int minLoadableRetryCount;
+  private final LinkedList<BaseMediaChunk> mediaChunks;
+  private final List<BaseMediaChunk> readOnlyMediaChunks;
+  private final DefaultTrackOutput sampleQueue;
+  private final ChunkHolder nextChunkHolder;
+  private final Loader loader;
+
+  private Format downstreamFormat;
+
+  private long lastSeekPositionUs;
+  private long pendingResetPositionUs;
+
+  private boolean loadingFinished;
+
+  /**
+   * @param trackType The type of the track. One of the {@link C} {@code TRACK_TYPE_*} constants.
+   * @param chunkSource A {@link ChunkSource} from which chunks to load are obtained.
+   * @param callback An {@link Callback} for the stream.
+   * @param allocator An {@link Allocator} from which allocations can be obtained.
+   * @param positionUs The position from which to start loading media.
+   * @param minLoadableRetryCount The minimum number of times that the source should retry a load
+   *     before propagating an error.
+   * @param eventDispatcher A dispatcher to notify of events.
+   */
+  public ChunkSampleStream(int trackType, T chunkSource,
+      SequenceableLoader.Callback<ChunkSampleStream<T>> callback, Allocator allocator,
+      long positionUs, int minLoadableRetryCount, EventDispatcher eventDispatcher) {
+    this.trackType = trackType;
+    this.chunkSource = chunkSource;
+    this.callback = callback;
+    this.eventDispatcher = eventDispatcher;
+    this.minLoadableRetryCount = minLoadableRetryCount;
+    loader = new Loader("Loader:ChunkSampleStream");
+    nextChunkHolder = new ChunkHolder();
+    mediaChunks = new LinkedList<>();
+    readOnlyMediaChunks = Collections.unmodifiableList(mediaChunks);
+    sampleQueue = new DefaultTrackOutput(allocator);
+    pendingResetPositionUs = C.UNSET_TIME_US;
+    lastSeekPositionUs = positionUs;
+    pendingResetPositionUs = positionUs;
+  }
+
+  /**
+   * Returns the {@link ChunkSource} used by this stream.
+   *
+   * @return The {@link ChunkSource}.
+   */
+  public T getChunkSource() {
+    return chunkSource;
+  }
+
+  /**
+   * Returns an estimate of the position up to which data is buffered.
+   *
+   * @return An estimate of the absolute position in microseconds up to which data is buffered, or
+   *     {@link C#END_OF_SOURCE_US} if the track is fully buffered.
+   */
+  public long getBufferedPositionUs() {
+    if (loadingFinished) {
+      return C.END_OF_SOURCE_US;
+    } else if (isPendingReset()) {
+      return pendingResetPositionUs;
+    } else {
+      long bufferedPositionUs = lastSeekPositionUs;
+      BaseMediaChunk lastMediaChunk = mediaChunks.getLast();
+      BaseMediaChunk lastCompletedMediaChunk = lastMediaChunk.isLoadCompleted() ? lastMediaChunk
+          : mediaChunks.size() > 1 ? mediaChunks.get(mediaChunks.size() - 2) : null;
+      if (lastCompletedMediaChunk != null) {
+        bufferedPositionUs = Math.max(bufferedPositionUs, lastCompletedMediaChunk.endTimeUs);
+      }
+      return Math.max(bufferedPositionUs, sampleQueue.getLargestQueuedTimestampUs());
+    }
+  }
+
+  /**
+   * Seeks to the specified position in microseconds.
+   *
+   * @param positionUs The seek position in microseconds.
+   */
+  public void seekToUs(long positionUs) {
+    lastSeekPositionUs = positionUs;
+    // If we're not pending a reset, see if we can seek within the sample queue.
+    boolean seekInsideBuffer = !isPendingReset() && sampleQueue.skipToKeyframeBefore(positionUs);
+    if (seekInsideBuffer) {
+      // We succeeded. All we need to do is discard any chunks that we've moved past.
+      while (mediaChunks.size() > 1
+          && mediaChunks.get(1).getFirstSampleIndex() <= sampleQueue.getReadIndex()) {
+        mediaChunks.removeFirst();
+      }
+    } else {
+      // We failed, and need to restart.
+      pendingResetPositionUs = positionUs;
+      loadingFinished = false;
+      mediaChunks.clear();
+      if (loader.isLoading()) {
+        loader.cancelLoading();
+      } else {
+        sampleQueue.reset(true);
+      }
+    }
+  }
+
+  /**
+   * Releases the stream.
+   * <p>
+   * This method should be called when the stream is no longer required.
+   */
+  public void release() {
+    chunkSource.release();
+    sampleQueue.disable();
+    loader.release();
+  }
+
+  // SampleStream implementation.
+
+  @Override
+  public boolean isReady() {
+    return loadingFinished || (!isPendingReset() && !sampleQueue.isEmpty());
+  }
+
+  @Override
+  public void maybeThrowError() throws IOException {
+    loader.maybeThrowError();
+    if (!loader.isLoading()) {
+      chunkSource.maybeThrowError();
+    }
+  }
+
+  @Override
+  public int readData(FormatHolder formatHolder, DecoderInputBuffer buffer) {
+    if (isPendingReset()) {
+      return C.RESULT_NOTHING_READ;
+    }
+
+    while (mediaChunks.size() > 1
+        && mediaChunks.get(1).getFirstSampleIndex() <= sampleQueue.getReadIndex()) {
+      mediaChunks.removeFirst();
+    }
+    BaseMediaChunk currentChunk = mediaChunks.getFirst();
+
+    Format format = currentChunk.format;
+    if (!format.equals(downstreamFormat)) {
+      eventDispatcher.downstreamFormatChanged(trackType, format,
+          currentChunk.formatEvaluatorTrigger, currentChunk.formatEvaluatorData,
+          currentChunk.startTimeUs);
+    }
+    downstreamFormat = format;
+
+    return sampleQueue.readData(formatHolder, buffer, loadingFinished, lastSeekPositionUs);
+  }
+
+  // Loader.Callback implementation.
+
+  @Override
+  public void onLoadCompleted(Chunk loadable, long elapsedRealtimeMs, long loadDurationMs) {
+    chunkSource.onChunkLoadCompleted(loadable);
+    eventDispatcher.loadCompleted(loadable.dataSpec, loadable.type, trackType, loadable.format,
+        loadable.formatEvaluatorTrigger, loadable.formatEvaluatorData, loadable.startTimeUs,
+        loadable.endTimeUs, elapsedRealtimeMs, loadDurationMs, loadable.bytesLoaded());
+    callback.onContinueLoadingRequested(this);
+  }
+
+  @Override
+  public void onLoadCanceled(Chunk loadable, long elapsedRealtimeMs, long loadDurationMs,
+      boolean released) {
+    eventDispatcher.loadCanceled(loadable.dataSpec, loadable.type, trackType, loadable.format,
+        loadable.formatEvaluatorTrigger, loadable.formatEvaluatorData, loadable.startTimeUs,
+        loadable.endTimeUs, elapsedRealtimeMs, loadDurationMs, loadable.bytesLoaded());
+    if (!released) {
+      sampleQueue.reset(true);
+      callback.onContinueLoadingRequested(this);
+    }
+  }
+
+  @Override
+  public int onLoadError(Chunk loadable, long elapsedRealtimeMs, long loadDurationMs,
+      IOException error) {
+    long bytesLoaded = loadable.bytesLoaded();
+    boolean isMediaChunk = isMediaChunk(loadable);
+    boolean cancelable = !isMediaChunk || bytesLoaded == 0 || mediaChunks.size() > 1;
+    boolean canceled = false;
+    if (chunkSource.onChunkLoadError(loadable, cancelable, error)) {
+      canceled = true;
+      if (isMediaChunk) {
+        BaseMediaChunk removed = mediaChunks.removeLast();
+        Assertions.checkState(removed == loadable);
+        sampleQueue.discardUpstreamSamples(removed.getFirstSampleIndex());
+        if (mediaChunks.isEmpty()) {
+          pendingResetPositionUs = lastSeekPositionUs;
+        }
+      }
+    }
+    eventDispatcher.loadError(loadable.dataSpec, loadable.type, trackType, loadable.format,
+        loadable.formatEvaluatorTrigger, loadable.formatEvaluatorData, loadable.startTimeUs,
+        loadable.endTimeUs, elapsedRealtimeMs, loadDurationMs, bytesLoaded, error,
+        canceled);
+    if (canceled) {
+      callback.onContinueLoadingRequested(this);
+      return Loader.DONT_RETRY;
+    } else {
+      return Loader.RETRY;
+    }
+  }
+
+  // SequenceableLoader implementation
+
+  @Override
+  public boolean continueLoading(long positionUs) {
+    if (loader.isLoading()) {
+      return false;
+    }
+
+    chunkSource.getNextChunk(mediaChunks.isEmpty() ? null : mediaChunks.getLast(),
+        pendingResetPositionUs != C.UNSET_TIME_US ? pendingResetPositionUs : positionUs,
+        nextChunkHolder);
+    boolean endOfStream = nextChunkHolder.endOfStream;
+    Chunk loadable = nextChunkHolder.chunk;
+    nextChunkHolder.clear();
+
+    if (endOfStream) {
+      loadingFinished = true;
+      return true;
+    }
+
+    if (loadable == null) {
+      return false;
+    }
+
+    if (isMediaChunk(loadable)) {
+      pendingResetPositionUs = C.UNSET_TIME_US;
+      BaseMediaChunk mediaChunk = (BaseMediaChunk) loadable;
+      mediaChunk.init(sampleQueue);
+      mediaChunks.add(mediaChunk);
+    }
+    long elapsedRealtimeMs = loader.startLoading(loadable, this, minLoadableRetryCount);
+    eventDispatcher.loadStarted(loadable.dataSpec, loadable.type, trackType, loadable.format,
+        loadable.formatEvaluatorTrigger, loadable.formatEvaluatorData, loadable.startTimeUs,
+        loadable.endTimeUs, elapsedRealtimeMs);
+    return true;
+  }
+
+  @Override
+  public long getNextLoadPositionUs() {
+    if (isPendingReset()) {
+      return pendingResetPositionUs;
+    } else {
+      return loadingFinished ? C.END_OF_SOURCE_US : mediaChunks.getLast().endTimeUs;
+    }
+  }
+
+  // Internal methods
+
+  // TODO[REFACTOR]: Call maybeDiscardUpstream for DASH and SmoothStreaming.
+  /**
+   * Discards media chunks from the back of the buffer if conditions have changed such that it's
+   * preferable to re-buffer the media at a different quality.
+   *
+   * @param positionUs The current playback position in microseconds.
+   */
+  private void maybeDiscardUpstream(long positionUs) {
+    int queueSize = chunkSource.getPreferredQueueSize(positionUs, readOnlyMediaChunks);
+    discardUpstreamMediaChunks(Math.max(1, queueSize));
+  }
+
+  private boolean isMediaChunk(Chunk chunk) {
+    return chunk instanceof BaseMediaChunk;
+  }
+
+  private boolean isPendingReset() {
+    return pendingResetPositionUs != C.UNSET_TIME_US;
+  }
+
+  /**
+   * Discard upstream media chunks until the queue length is equal to the length specified.
+   *
+   * @param queueLength The desired length of the queue.
+   * @return True if chunks were discarded. False otherwise.
+   */
+  private boolean discardUpstreamMediaChunks(int queueLength) {
+    if (mediaChunks.size() <= queueLength) {
+      return false;
+    }
+    long startTimeUs = 0;
+    long endTimeUs = mediaChunks.getLast().endTimeUs;
+
+    BaseMediaChunk removed = null;
+    while (mediaChunks.size() > queueLength) {
+      removed = mediaChunks.removeLast();
+      startTimeUs = removed.startTimeUs;
+      loadingFinished = false;
+    }
+    sampleQueue.discardUpstreamSamples(removed.getFirstSampleIndex());
+    eventDispatcher.upstreamDiscarded(trackType, startTimeUs, endTimeUs);
+    return true;
+  }
+
+}

library/src/main/java/com/google/android/exoplayer2/chunk/ChunkSource.java → library/src/main/java/com/google/android/exoplayer2/source/chunk/ChunkSource.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2.chunk;
+package com.google.android.exoplayer2.source.chunk;
 
 
 import java.io.IOException;
 import java.io.IOException;
 import java.util.List;
 import java.util.List;

library/src/main/java/com/google/android/exoplayer2/chunk/ContainerMediaChunk.java → library/src/main/java/com/google/android/exoplayer2/source/chunk/ContainerMediaChunk.java

@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2.chunk;
+package com.google.android.exoplayer2.source.chunk;
 
 
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;
-import com.google.android.exoplayer2.chunk.ChunkExtractorWrapper.SingleTrackMetadataOutput;
 import com.google.android.exoplayer2.extractor.DefaultExtractorInput;
 import com.google.android.exoplayer2.extractor.DefaultExtractorInput;
 import com.google.android.exoplayer2.extractor.DefaultTrackOutput;
 import com.google.android.exoplayer2.extractor.DefaultTrackOutput;
 import com.google.android.exoplayer2.extractor.Extractor;
 import com.google.android.exoplayer2.extractor.Extractor;
 import com.google.android.exoplayer2.extractor.ExtractorInput;
 import com.google.android.exoplayer2.extractor.ExtractorInput;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.extractor.SeekMap;
+import com.google.android.exoplayer2.source.chunk.ChunkExtractorWrapper.SingleTrackMetadataOutput;
 import com.google.android.exoplayer2.upstream.DataSource;
 import com.google.android.exoplayer2.upstream.DataSource;
 import com.google.android.exoplayer2.upstream.DataSpec;
 import com.google.android.exoplayer2.upstream.DataSpec;
 import com.google.android.exoplayer2.util.Util;
 import com.google.android.exoplayer2.util.Util;

library/src/main/java/com/google/android/exoplayer2/chunk/DataChunk.java → library/src/main/java/com/google/android/exoplayer2/source/chunk/DataChunk.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2.chunk;
+package com.google.android.exoplayer2.source.chunk;
 
 
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;

library/src/main/java/com/google/android/exoplayer2/chunk/FormatEvaluator.java → library/src/main/java/com/google/android/exoplayer2/source/chunk/FormatEvaluator.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2.chunk;
+package com.google.android.exoplayer2.source.chunk;
 
 
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.upstream.BandwidthMeter;
 import com.google.android.exoplayer2.upstream.BandwidthMeter;

library/src/main/java/com/google/android/exoplayer2/chunk/InitializationChunk.java → library/src/main/java/com/google/android/exoplayer2/source/chunk/InitializationChunk.java

@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2.chunk;
+package com.google.android.exoplayer2.source.chunk;
 
 
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;
-import com.google.android.exoplayer2.chunk.ChunkExtractorWrapper.SingleTrackMetadataOutput;
 import com.google.android.exoplayer2.extractor.DefaultExtractorInput;
 import com.google.android.exoplayer2.extractor.DefaultExtractorInput;
 import com.google.android.exoplayer2.extractor.Extractor;
 import com.google.android.exoplayer2.extractor.Extractor;
 import com.google.android.exoplayer2.extractor.ExtractorInput;
 import com.google.android.exoplayer2.extractor.ExtractorInput;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.extractor.TrackOutput;
 import com.google.android.exoplayer2.extractor.TrackOutput;
+import com.google.android.exoplayer2.source.chunk.ChunkExtractorWrapper.SingleTrackMetadataOutput;
 import com.google.android.exoplayer2.upstream.DataSource;
 import com.google.android.exoplayer2.upstream.DataSource;
 import com.google.android.exoplayer2.upstream.DataSpec;
 import com.google.android.exoplayer2.upstream.DataSpec;
 import com.google.android.exoplayer2.util.ParsableByteArray;
 import com.google.android.exoplayer2.util.ParsableByteArray;

library/src/main/java/com/google/android/exoplayer2/chunk/MediaChunk.java → library/src/main/java/com/google/android/exoplayer2/source/chunk/MediaChunk.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2.chunk;
+package com.google.android.exoplayer2.source.chunk;
 
 
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;

library/src/main/java/com/google/android/exoplayer2/chunk/SingleSampleMediaChunk.java → library/src/main/java/com/google/android/exoplayer2/source/chunk/SingleSampleMediaChunk.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2.chunk;
+package com.google.android.exoplayer2.source.chunk;
 
 
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;

library/src/main/java/com/google/android/exoplayer2/source/dash/DashChunkSource.java

@@ -15,25 +15,25 @@
  */
  */
 package com.google.android.exoplayer2.source.dash;
 package com.google.android.exoplayer2.source.dash;
 
 
-import com.google.android.exoplayer2.BehindLiveWindowException;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format.DecreasingBandwidthComparator;
 import com.google.android.exoplayer2.Format.DecreasingBandwidthComparator;
-import com.google.android.exoplayer2.chunk.Chunk;
-import com.google.android.exoplayer2.chunk.ChunkExtractorWrapper;
-import com.google.android.exoplayer2.chunk.ChunkHolder;
-import com.google.android.exoplayer2.chunk.ChunkSource;
-import com.google.android.exoplayer2.chunk.ContainerMediaChunk;
-import com.google.android.exoplayer2.chunk.FormatEvaluator;
-import com.google.android.exoplayer2.chunk.FormatEvaluator.Evaluation;
-import com.google.android.exoplayer2.chunk.InitializationChunk;
-import com.google.android.exoplayer2.chunk.MediaChunk;
-import com.google.android.exoplayer2.chunk.SingleSampleMediaChunk;
 import com.google.android.exoplayer2.extractor.ChunkIndex;
 import com.google.android.exoplayer2.extractor.ChunkIndex;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.extractor.mkv.MatroskaExtractor;
 import com.google.android.exoplayer2.extractor.mkv.MatroskaExtractor;
 import com.google.android.exoplayer2.extractor.mp4.FragmentedMp4Extractor;
 import com.google.android.exoplayer2.extractor.mp4.FragmentedMp4Extractor;
+import com.google.android.exoplayer2.source.BehindLiveWindowException;
 import com.google.android.exoplayer2.source.TrackGroup;
 import com.google.android.exoplayer2.source.TrackGroup;
+import com.google.android.exoplayer2.source.chunk.Chunk;
+import com.google.android.exoplayer2.source.chunk.ChunkExtractorWrapper;
+import com.google.android.exoplayer2.source.chunk.ChunkHolder;
+import com.google.android.exoplayer2.source.chunk.ChunkSource;
+import com.google.android.exoplayer2.source.chunk.ContainerMediaChunk;
+import com.google.android.exoplayer2.source.chunk.FormatEvaluator;
+import com.google.android.exoplayer2.source.chunk.FormatEvaluator.Evaluation;
+import com.google.android.exoplayer2.source.chunk.InitializationChunk;
+import com.google.android.exoplayer2.source.chunk.MediaChunk;
+import com.google.android.exoplayer2.source.chunk.SingleSampleMediaChunk;
 import com.google.android.exoplayer2.source.dash.mpd.AdaptationSet;
 import com.google.android.exoplayer2.source.dash.mpd.AdaptationSet;
 import com.google.android.exoplayer2.source.dash.mpd.MediaPresentationDescription;
 import com.google.android.exoplayer2.source.dash.mpd.MediaPresentationDescription;
 import com.google.android.exoplayer2.source.dash.mpd.Period;
 import com.google.android.exoplayer2.source.dash.mpd.Period;

library/src/main/java/com/google/android/exoplayer2/source/dash/DashMediaSource.java

@@ -16,21 +16,21 @@
 package com.google.android.exoplayer2.source.dash;
 package com.google.android.exoplayer2.source.dash;
 
 
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.C;
-import com.google.android.exoplayer2.CompositeSequenceableLoader;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.ParserException;
 import com.google.android.exoplayer2.ParserException;
-import com.google.android.exoplayer2.SequenceableLoader;
 import com.google.android.exoplayer2.TrackSelection;
 import com.google.android.exoplayer2.TrackSelection;
 import com.google.android.exoplayer2.chunk.ChunkSampleStream;
 import com.google.android.exoplayer2.chunk.ChunkSampleStream;
-import com.google.android.exoplayer2.chunk.FormatEvaluator;
-import com.google.android.exoplayer2.chunk.FormatEvaluator.AdaptiveEvaluator;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener.EventDispatcher;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener.EventDispatcher;
+import com.google.android.exoplayer2.source.CompositeSequenceableLoader;
 import com.google.android.exoplayer2.source.MediaPeriod;
 import com.google.android.exoplayer2.source.MediaPeriod;
 import com.google.android.exoplayer2.source.MediaSource;
 import com.google.android.exoplayer2.source.MediaSource;
 import com.google.android.exoplayer2.source.SampleStream;
 import com.google.android.exoplayer2.source.SampleStream;
+import com.google.android.exoplayer2.source.SequenceableLoader;
 import com.google.android.exoplayer2.source.TrackGroup;
 import com.google.android.exoplayer2.source.TrackGroup;
 import com.google.android.exoplayer2.source.TrackGroupArray;
 import com.google.android.exoplayer2.source.TrackGroupArray;
+import com.google.android.exoplayer2.source.chunk.FormatEvaluator;
+import com.google.android.exoplayer2.source.chunk.FormatEvaluator.AdaptiveEvaluator;
 import com.google.android.exoplayer2.source.dash.mpd.AdaptationSet;
 import com.google.android.exoplayer2.source.dash.mpd.AdaptationSet;
 import com.google.android.exoplayer2.source.dash.mpd.MediaPresentationDescription;
 import com.google.android.exoplayer2.source.dash.mpd.MediaPresentationDescription;
 import com.google.android.exoplayer2.source.dash.mpd.MediaPresentationDescriptionParser;
 import com.google.android.exoplayer2.source.dash.mpd.MediaPresentationDescriptionParser;

library/src/main/java/com/google/android/exoplayer2/source/hls/HlsChunkSource.java

@@ -15,19 +15,19 @@
  */
  */
 package com.google.android.exoplayer2.source.hls;
 package com.google.android.exoplayer2.source.hls;
 
 
-import com.google.android.exoplayer2.BehindLiveWindowException;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;
-import com.google.android.exoplayer2.chunk.Chunk;
-import com.google.android.exoplayer2.chunk.ChunkHolder;
-import com.google.android.exoplayer2.chunk.DataChunk;
-import com.google.android.exoplayer2.chunk.FormatEvaluator;
-import com.google.android.exoplayer2.chunk.FormatEvaluator.Evaluation;
 import com.google.android.exoplayer2.extractor.Extractor;
 import com.google.android.exoplayer2.extractor.Extractor;
 import com.google.android.exoplayer2.extractor.mp3.Mp3Extractor;
 import com.google.android.exoplayer2.extractor.mp3.Mp3Extractor;
 import com.google.android.exoplayer2.extractor.ts.AdtsExtractor;
 import com.google.android.exoplayer2.extractor.ts.AdtsExtractor;
 import com.google.android.exoplayer2.extractor.ts.PtsTimestampAdjuster;
 import com.google.android.exoplayer2.extractor.ts.PtsTimestampAdjuster;
 import com.google.android.exoplayer2.extractor.ts.TsExtractor;
 import com.google.android.exoplayer2.extractor.ts.TsExtractor;
+import com.google.android.exoplayer2.source.BehindLiveWindowException;
+import com.google.android.exoplayer2.source.chunk.Chunk;
+import com.google.android.exoplayer2.source.chunk.ChunkHolder;
+import com.google.android.exoplayer2.source.chunk.DataChunk;
+import com.google.android.exoplayer2.source.chunk.FormatEvaluator;
+import com.google.android.exoplayer2.source.chunk.FormatEvaluator.Evaluation;
 import com.google.android.exoplayer2.source.hls.playlist.HlsMediaPlaylist;
 import com.google.android.exoplayer2.source.hls.playlist.HlsMediaPlaylist;
 import com.google.android.exoplayer2.source.hls.playlist.HlsPlaylistParser;
 import com.google.android.exoplayer2.source.hls.playlist.HlsPlaylistParser;
 import com.google.android.exoplayer2.source.hls.playlist.Variant;
 import com.google.android.exoplayer2.source.hls.playlist.Variant;

library/src/main/java/com/google/android/exoplayer2/source/hls/HlsMediaChunk.java

@@ -16,10 +16,10 @@
 package com.google.android.exoplayer2.source.hls;
 package com.google.android.exoplayer2.source.hls;
 
 
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;
-import com.google.android.exoplayer2.chunk.MediaChunk;
 import com.google.android.exoplayer2.extractor.DefaultExtractorInput;
 import com.google.android.exoplayer2.extractor.DefaultExtractorInput;
 import com.google.android.exoplayer2.extractor.Extractor;
 import com.google.android.exoplayer2.extractor.Extractor;
 import com.google.android.exoplayer2.extractor.ExtractorInput;
 import com.google.android.exoplayer2.extractor.ExtractorInput;
+import com.google.android.exoplayer2.source.chunk.MediaChunk;
 import com.google.android.exoplayer2.upstream.DataSource;
 import com.google.android.exoplayer2.upstream.DataSource;
 import com.google.android.exoplayer2.upstream.DataSpec;
 import com.google.android.exoplayer2.upstream.DataSpec;
 import com.google.android.exoplayer2.util.Util;
 import com.google.android.exoplayer2.util.Util;

library/src/main/java/com/google/android/exoplayer2/source/hls/HlsMediaSource.java

@@ -16,18 +16,18 @@
 package com.google.android.exoplayer2.source.hls;
 package com.google.android.exoplayer2.source.hls;
 
 
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.C;
-import com.google.android.exoplayer2.CompositeSequenceableLoader;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.ParserException;
 import com.google.android.exoplayer2.ParserException;
 import com.google.android.exoplayer2.TrackSelection;
 import com.google.android.exoplayer2.TrackSelection;
-import com.google.android.exoplayer2.chunk.FormatEvaluator;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener.EventDispatcher;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener.EventDispatcher;
+import com.google.android.exoplayer2.source.CompositeSequenceableLoader;
 import com.google.android.exoplayer2.source.MediaPeriod;
 import com.google.android.exoplayer2.source.MediaPeriod;
 import com.google.android.exoplayer2.source.MediaSource;
 import com.google.android.exoplayer2.source.MediaSource;
 import com.google.android.exoplayer2.source.SampleStream;
 import com.google.android.exoplayer2.source.SampleStream;
 import com.google.android.exoplayer2.source.TrackGroup;
 import com.google.android.exoplayer2.source.TrackGroup;
 import com.google.android.exoplayer2.source.TrackGroupArray;
 import com.google.android.exoplayer2.source.TrackGroupArray;
+import com.google.android.exoplayer2.source.chunk.FormatEvaluator;
 import com.google.android.exoplayer2.source.hls.playlist.HlsMasterPlaylist;
 import com.google.android.exoplayer2.source.hls.playlist.HlsMasterPlaylist;
 import com.google.android.exoplayer2.source.hls.playlist.HlsMediaPlaylist;
 import com.google.android.exoplayer2.source.hls.playlist.HlsMediaPlaylist;
 import com.google.android.exoplayer2.source.hls.playlist.HlsPlaylist;
 import com.google.android.exoplayer2.source.hls.playlist.HlsPlaylist;

library/src/main/java/com/google/android/exoplayer2/source/hls/HlsSampleStreamWrapper.java

@@ -19,18 +19,18 @@ import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.DecoderInputBuffer;
 import com.google.android.exoplayer2.DecoderInputBuffer;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.FormatHolder;
 import com.google.android.exoplayer2.FormatHolder;
-import com.google.android.exoplayer2.SequenceableLoader;
 import com.google.android.exoplayer2.TrackSelection;
 import com.google.android.exoplayer2.TrackSelection;
-import com.google.android.exoplayer2.chunk.Chunk;
-import com.google.android.exoplayer2.chunk.ChunkHolder;
 import com.google.android.exoplayer2.extractor.DefaultTrackOutput;
 import com.google.android.exoplayer2.extractor.DefaultTrackOutput;
 import com.google.android.exoplayer2.extractor.DefaultTrackOutput.UpstreamFormatChangedListener;
 import com.google.android.exoplayer2.extractor.DefaultTrackOutput.UpstreamFormatChangedListener;
 import com.google.android.exoplayer2.extractor.ExtractorOutput;
 import com.google.android.exoplayer2.extractor.ExtractorOutput;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.extractor.SeekMap;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener.EventDispatcher;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener.EventDispatcher;
 import com.google.android.exoplayer2.source.SampleStream;
 import com.google.android.exoplayer2.source.SampleStream;
+import com.google.android.exoplayer2.source.SequenceableLoader;
 import com.google.android.exoplayer2.source.TrackGroup;
 import com.google.android.exoplayer2.source.TrackGroup;
 import com.google.android.exoplayer2.source.TrackGroupArray;
 import com.google.android.exoplayer2.source.TrackGroupArray;
+import com.google.android.exoplayer2.source.chunk.Chunk;
+import com.google.android.exoplayer2.source.chunk.ChunkHolder;
 import com.google.android.exoplayer2.upstream.Allocator;
 import com.google.android.exoplayer2.upstream.Allocator;
 import com.google.android.exoplayer2.upstream.Loader;
 import com.google.android.exoplayer2.upstream.Loader;
 import com.google.android.exoplayer2.util.Assertions;
 import com.google.android.exoplayer2.util.Assertions;

library/src/main/java/com/google/android/exoplayer2/source/smoothstreaming/SmoothStreamingChunkSource.java

@@ -15,22 +15,22 @@
  */
  */
 package com.google.android.exoplayer2.source.smoothstreaming;
 package com.google.android.exoplayer2.source.smoothstreaming;
 
 
-import com.google.android.exoplayer2.BehindLiveWindowException;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format.DecreasingBandwidthComparator;
 import com.google.android.exoplayer2.Format.DecreasingBandwidthComparator;
-import com.google.android.exoplayer2.chunk.Chunk;
-import com.google.android.exoplayer2.chunk.ChunkExtractorWrapper;
-import com.google.android.exoplayer2.chunk.ChunkHolder;
-import com.google.android.exoplayer2.chunk.ChunkSource;
-import com.google.android.exoplayer2.chunk.ContainerMediaChunk;
-import com.google.android.exoplayer2.chunk.FormatEvaluator;
-import com.google.android.exoplayer2.chunk.FormatEvaluator.Evaluation;
-import com.google.android.exoplayer2.chunk.MediaChunk;
 import com.google.android.exoplayer2.extractor.mp4.FragmentedMp4Extractor;
 import com.google.android.exoplayer2.extractor.mp4.FragmentedMp4Extractor;
 import com.google.android.exoplayer2.extractor.mp4.Track;
 import com.google.android.exoplayer2.extractor.mp4.Track;
 import com.google.android.exoplayer2.extractor.mp4.TrackEncryptionBox;
 import com.google.android.exoplayer2.extractor.mp4.TrackEncryptionBox;
+import com.google.android.exoplayer2.source.BehindLiveWindowException;
 import com.google.android.exoplayer2.source.TrackGroup;
 import com.google.android.exoplayer2.source.TrackGroup;
+import com.google.android.exoplayer2.source.chunk.Chunk;
+import com.google.android.exoplayer2.source.chunk.ChunkExtractorWrapper;
+import com.google.android.exoplayer2.source.chunk.ChunkHolder;
+import com.google.android.exoplayer2.source.chunk.ChunkSource;
+import com.google.android.exoplayer2.source.chunk.ContainerMediaChunk;
+import com.google.android.exoplayer2.source.chunk.FormatEvaluator;
+import com.google.android.exoplayer2.source.chunk.FormatEvaluator.Evaluation;
+import com.google.android.exoplayer2.source.chunk.MediaChunk;
 import com.google.android.exoplayer2.source.smoothstreaming.SmoothStreamingManifest.StreamElement;
 import com.google.android.exoplayer2.source.smoothstreaming.SmoothStreamingManifest.StreamElement;
 import com.google.android.exoplayer2.upstream.DataSource;
 import com.google.android.exoplayer2.upstream.DataSource;
 import com.google.android.exoplayer2.upstream.DataSpec;
 import com.google.android.exoplayer2.upstream.DataSpec;

library/src/main/java/com/google/android/exoplayer2/source/smoothstreaming/SmoothStreamingMediaSource.java

@@ -16,22 +16,22 @@
 package com.google.android.exoplayer2.source.smoothstreaming;
 package com.google.android.exoplayer2.source.smoothstreaming;
 
 
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.C;
-import com.google.android.exoplayer2.CompositeSequenceableLoader;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.ParserException;
 import com.google.android.exoplayer2.ParserException;
-import com.google.android.exoplayer2.SequenceableLoader;
 import com.google.android.exoplayer2.TrackSelection;
 import com.google.android.exoplayer2.TrackSelection;
 import com.google.android.exoplayer2.chunk.ChunkSampleStream;
 import com.google.android.exoplayer2.chunk.ChunkSampleStream;
-import com.google.android.exoplayer2.chunk.FormatEvaluator;
-import com.google.android.exoplayer2.chunk.FormatEvaluator.AdaptiveEvaluator;
 import com.google.android.exoplayer2.extractor.mp4.TrackEncryptionBox;
 import com.google.android.exoplayer2.extractor.mp4.TrackEncryptionBox;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener.EventDispatcher;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener.EventDispatcher;
+import com.google.android.exoplayer2.source.CompositeSequenceableLoader;
 import com.google.android.exoplayer2.source.MediaPeriod;
 import com.google.android.exoplayer2.source.MediaPeriod;
 import com.google.android.exoplayer2.source.MediaSource;
 import com.google.android.exoplayer2.source.MediaSource;
 import com.google.android.exoplayer2.source.SampleStream;
 import com.google.android.exoplayer2.source.SampleStream;
+import com.google.android.exoplayer2.source.SequenceableLoader;
 import com.google.android.exoplayer2.source.TrackGroup;
 import com.google.android.exoplayer2.source.TrackGroup;
 import com.google.android.exoplayer2.source.TrackGroupArray;
 import com.google.android.exoplayer2.source.TrackGroupArray;
+import com.google.android.exoplayer2.source.chunk.FormatEvaluator;
+import com.google.android.exoplayer2.source.chunk.FormatEvaluator.AdaptiveEvaluator;
 import com.google.android.exoplayer2.source.smoothstreaming.SmoothStreamingManifest.ProtectionElement;
 import com.google.android.exoplayer2.source.smoothstreaming.SmoothStreamingManifest.ProtectionElement;
 import com.google.android.exoplayer2.source.smoothstreaming.SmoothStreamingManifest.StreamElement;
 import com.google.android.exoplayer2.source.smoothstreaming.SmoothStreamingManifest.StreamElement;
 import com.google.android.exoplayer2.upstream.Allocator;
 import com.google.android.exoplayer2.upstream.Allocator;