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.Format;
 import com.google.android.exoplayer2.FormatHolder;
-import com.google.android.exoplayer2.SequenceableLoader;
 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.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.Loader;
 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.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.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
  * limitations under the License.
  */
-package com.google.android.exoplayer2;
+package com.google.android.exoplayer2.source;
 
 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
  * 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.

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.FormatHolder;
 import com.google.android.exoplayer2.ParserException;
-import com.google.android.exoplayer2.SequenceableLoader;
 import com.google.android.exoplayer2.TrackSelection;
 import com.google.android.exoplayer2.extractor.DefaultExtractorInput;
 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;
 
 import com.google.android.exoplayer2.C;
-import com.google.android.exoplayer2.SequenceableLoader;
 import com.google.android.exoplayer2.TrackSelection;
 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;
 
 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.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
  * 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.

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
  * 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.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
  * 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.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
  * 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.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
  * 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.

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
  * limitations under the License.
  */
-package com.google.android.exoplayer2.chunk;
+package com.google.android.exoplayer2.source.chunk;
 
 import java.io.IOException;
 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
  * 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.chunk.ChunkExtractorWrapper.SingleTrackMetadataOutput;
 import com.google.android.exoplayer2.extractor.DefaultExtractorInput;
 import com.google.android.exoplayer2.extractor.DefaultTrackOutput;
 import com.google.android.exoplayer2.extractor.Extractor;
 import com.google.android.exoplayer2.extractor.ExtractorInput;
 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.DataSpec;
 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
  * 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.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
  * 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.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
  * 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.Format;
-import com.google.android.exoplayer2.chunk.ChunkExtractorWrapper.SingleTrackMetadataOutput;
 import com.google.android.exoplayer2.extractor.DefaultExtractorInput;
 import com.google.android.exoplayer2.extractor.Extractor;
 import com.google.android.exoplayer2.extractor.ExtractorInput;
 import com.google.android.exoplayer2.extractor.SeekMap;
 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.DataSpec;
 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
  * 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.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
  * 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.Format;

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

@@ -15,25 +15,25 @@
  */
 package com.google.android.exoplayer2.source.dash;
 
-import com.google.android.exoplayer2.BehindLiveWindowException;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
 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.SeekMap;
 import com.google.android.exoplayer2.extractor.mkv.MatroskaExtractor;
 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.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.MediaPresentationDescription;
 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;
 
 import com.google.android.exoplayer2.C;
-import com.google.android.exoplayer2.CompositeSequenceableLoader;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.ParserException;
-import com.google.android.exoplayer2.SequenceableLoader;
 import com.google.android.exoplayer2.TrackSelection;
 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.EventDispatcher;
+import com.google.android.exoplayer2.source.CompositeSequenceableLoader;
 import com.google.android.exoplayer2.source.MediaPeriod;
 import com.google.android.exoplayer2.source.MediaSource;
 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.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.MediaPresentationDescription;
 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;
 
-import com.google.android.exoplayer2.BehindLiveWindowException;
 import com.google.android.exoplayer2.C;
 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.mp3.Mp3Extractor;
 import com.google.android.exoplayer2.extractor.ts.AdtsExtractor;
 import com.google.android.exoplayer2.extractor.ts.PtsTimestampAdjuster;
 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.HlsPlaylistParser;
 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;
 
 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.Extractor;
 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.DataSpec;
 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;
 
 import com.google.android.exoplayer2.C;
-import com.google.android.exoplayer2.CompositeSequenceableLoader;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.ParserException;
 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.EventDispatcher;
+import com.google.android.exoplayer2.source.CompositeSequenceableLoader;
 import com.google.android.exoplayer2.source.MediaPeriod;
 import com.google.android.exoplayer2.source.MediaSource;
 import com.google.android.exoplayer2.source.SampleStream;
 import com.google.android.exoplayer2.source.TrackGroup;
 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.HlsMediaPlaylist;
 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.Format;
 import com.google.android.exoplayer2.FormatHolder;
-import com.google.android.exoplayer2.SequenceableLoader;
 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.UpstreamFormatChangedListener;
 import com.google.android.exoplayer2.extractor.ExtractorOutput;
 import com.google.android.exoplayer2.extractor.SeekMap;
 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.source.TrackGroup;
 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.Loader;
 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;
 
-import com.google.android.exoplayer2.BehindLiveWindowException;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Format;
 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.Track;
 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.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.upstream.DataSource;
 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;
 
 import com.google.android.exoplayer2.C;
-import com.google.android.exoplayer2.CompositeSequenceableLoader;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.ParserException;
-import com.google.android.exoplayer2.SequenceableLoader;
 import com.google.android.exoplayer2.TrackSelection;
 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.source.AdaptiveMediaSourceEventListener;
 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.MediaSource;
 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.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.StreamElement;
 import com.google.android.exoplayer2.upstream.Allocator;