diff --git a/library/src/main/java/com/google/android/exoplayer/dash/DashChunkSource.java b/library/src/main/java/com/google/android/exoplayer/dash/DashChunkSource.java
index 5395b86d16..d59d1b2115 100644
--- a/library/src/main/java/com/google/android/exoplayer/dash/DashChunkSource.java
+++ b/library/src/main/java/com/google/android/exoplayer/dash/DashChunkSource.java
@@ -108,7 +108,7 @@ public class DashChunkSource implements ChunkSource {
   private final Handler eventHandler;
   private final EventListener eventListener;
 
-  private final MediaFormat mediaFormat;
+  private final MediaFormat trackFormat;
   private final DataSource dataSource;
   private final FormatEvaluator formatEvaluator;
   private final Evaluation evaluation;
@@ -294,7 +294,7 @@ public class DashChunkSource implements ChunkSource {
     this.maxWidth = maxWidth == 0 ? MediaFormat.NO_VALUE : maxWidth;
     this.maxHeight = maxHeight == 0 ? MediaFormat.NO_VALUE : maxHeight;
     // TODO: Remove this and pass proper formats instead (b/22996976).
-    this.mediaFormat = MediaFormat.createFormatForMimeType(mimeType, MediaFormat.NO_VALUE,
+    this.trackFormat = MediaFormat.createFormatForMimeType(mimeType, MediaFormat.NO_VALUE,
         totalDurationUs);
   }
 
@@ -310,7 +310,7 @@ public class DashChunkSource implements ChunkSource {
 
   @Override
   public final MediaFormat getFormat(int track) {
-    return mediaFormat;
+    return trackFormat;
   }
 
   // VisibleForTesting
diff --git a/library/src/main/java/com/google/android/exoplayer/hls/HlsSampleSource.java b/library/src/main/java/com/google/android/exoplayer/hls/HlsSampleSource.java
index d642938f94..1d30242465 100644
--- a/library/src/main/java/com/google/android/exoplayer/hls/HlsSampleSource.java
+++ b/library/src/main/java/com/google/android/exoplayer/hls/HlsSampleSource.java
@@ -71,7 +71,7 @@ public final class HlsSampleSource implements SampleSource, SampleSourceReader,
   private int enabledTrackCount;
   private boolean[] trackEnabledStates;
   private boolean[] pendingDiscontinuities;
-  private MediaFormat[] mediaFormats;
+  private MediaFormat[] trackFormat;
   private MediaFormat[] downstreamMediaFormats;
   private Format downstreamFormat;
 
@@ -135,14 +135,14 @@ public final class HlsSampleSource implements SampleSource, SampleSourceReader,
         trackEnabledStates = new boolean[trackCount];
         pendingDiscontinuities = new boolean[trackCount];
         downstreamMediaFormats = new MediaFormat[trackCount];
-        mediaFormats = new MediaFormat[trackCount];
+        trackFormat = new MediaFormat[trackCount];
         long durationUs = chunkSource.getDurationUs();
         for (int i = 0; i < trackCount; i++) {
           MediaFormat format = extractor.getMediaFormat(i).copyWithDurationUs(durationUs);
           if (MimeTypes.isVideo(format.mimeType)) {
             format = format.copyAsAdaptive();
           }
-          mediaFormats[i] = format;
+          trackFormat[i] = format;
         }
         prepared = true;
         return true;
@@ -176,7 +176,7 @@ public final class HlsSampleSource implements SampleSource, SampleSourceReader,
   @Override
   public MediaFormat getFormat(int track) {
     Assertions.checkState(prepared);
-    return mediaFormats[track];
+    return trackFormat[track];
   }
 
   @Override
diff --git a/library/src/main/java/com/google/android/exoplayer/smoothstreaming/SmoothStreamingChunkSource.java b/library/src/main/java/com/google/android/exoplayer/smoothstreaming/SmoothStreamingChunkSource.java
index d735c2d4ab..8baf1e6986 100644
--- a/library/src/main/java/com/google/android/exoplayer/smoothstreaming/SmoothStreamingChunkSource.java
+++ b/library/src/main/java/com/google/android/exoplayer/smoothstreaming/SmoothStreamingChunkSource.java
@@ -180,7 +180,7 @@ public class SmoothStreamingChunkSource implements ChunkSource,
 
   @Override
   public final MediaFormat getFormat(int track) {
-    return tracks.get(track).format;
+    return tracks.get(track).trackFormat;
   }
 
   @Override
@@ -512,7 +512,7 @@ public class SmoothStreamingChunkSource implements ChunkSource,
 
   private static final class ExposedTrack {
 
-    public final MediaFormat format;
+    public final MediaFormat trackFormat;
 
     private final int elementIndex;
 
@@ -524,8 +524,8 @@ public class SmoothStreamingChunkSource implements ChunkSource,
     private final int adaptiveMaxWidth;
     private final int adaptiveMaxHeight;
 
-    public ExposedTrack(MediaFormat format, int elementIndex, Format fixedFormat) {
-      this.format = format;
+    public ExposedTrack(MediaFormat trackFormat, int elementIndex, Format fixedFormat) {
+      this.trackFormat = trackFormat;
       this.elementIndex = elementIndex;
       this.fixedFormat = fixedFormat;
       this.adaptiveFormats = null;
@@ -533,9 +533,9 @@ public class SmoothStreamingChunkSource implements ChunkSource,
       this.adaptiveMaxHeight = MediaFormat.NO_VALUE;
     }
 
-    public ExposedTrack(MediaFormat format, int elementIndex, Format[] adaptiveFormats,
+    public ExposedTrack(MediaFormat trackFormat, int elementIndex, Format[] adaptiveFormats,
         int adaptiveMaxWidth, int adaptiveMaxHeight) {
-      this.format = format;
+      this.trackFormat = trackFormat;
       this.elementIndex = elementIndex;
       this.adaptiveFormats = adaptiveFormats;
       this.adaptiveMaxWidth = adaptiveMaxWidth;