Fix SmoothStreaming

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=129851843

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

@@ -65,18 +65,6 @@ public final class ChunkExtractorWrapper implements ExtractorOutput, TrackOutput
    *     sample {@link Format} output from the {@link Extractor}.
    * @param preferManifestDrmInitData Whether {@link DrmInitData} defined in {@code manifestFormat}
    *     should be preferred when the sample and manifest {@link Format}s are merged.
-   */
-  public ChunkExtractorWrapper(Extractor extractor, Format manifestFormat,
-      boolean preferManifestDrmInitData) {
-    this(extractor, manifestFormat, preferManifestDrmInitData, true);
-  }
-
-  /**
-   * @param extractor The extractor to wrap.
-   * @param manifestFormat A manifest defined {@link Format} whose data should be merged into any
-   *     sample {@link Format} output from the {@link Extractor}.
-   * @param preferManifestDrmInitData Whether {@link DrmInitData} defined in {@code manifestFormat}
-   *     should be preferred when the sample and manifest {@link Format}s are merged.
    * @param resendFormatOnInit Whether the extractor should resend the previous {@link Format} when
    *     it is initialized via {@link #init(SingleTrackMetadataOutput, TrackOutput)}.
    */

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

@@ -94,7 +94,7 @@ public class DefaultSsChunkSource implements SsChunkSource {
     extractorWrappers = new ChunkExtractorWrapper[trackSelection.length()];
     for (int i = 0; i < extractorWrappers.length; i++) {
       int manifestTrackIndex = trackSelection.getIndexInTrackGroup(i);
-      Format format = streamElement.formats[i];
+      Format format = streamElement.formats[manifestTrackIndex];
       int nalUnitLengthFieldLength = streamElement.type == C.TRACK_TYPE_VIDEO ? 4 : -1;
       Track track = new Track(manifestTrackIndex, streamElement.type, streamElement.timescale,
           C.UNSET_TIME_US, manifest.durationUs, format, Track.TRANSFORMATION_NONE,
@@ -102,7 +102,7 @@ public class DefaultSsChunkSource implements SsChunkSource {
       FragmentedMp4Extractor extractor = new FragmentedMp4Extractor(
           FragmentedMp4Extractor.FLAG_WORKAROUND_EVERY_VIDEO_FRAME_IS_SYNC_FRAME
           | FragmentedMp4Extractor.FLAG_WORKAROUND_IGNORE_TFDT_BOX, track);
-      extractorWrappers[i] = new ChunkExtractorWrapper(extractor, format, false);
+      extractorWrappers[i] = new ChunkExtractorWrapper(extractor, format, false, false);
     }
   }