content: /*
   * 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.dash;
  
  import android.os.SystemClock;
  import android.support.annotation.Nullable;
  import com.google.android.exoplayer2.source.chunk.ChunkSource;
  import com.google.android.exoplayer2.source.dash.PlayerEmsgHandler.PlayerTrackEmsgHandler;
  import com.google.android.exoplayer2.source.dash.manifest.DashManifest;
  import com.google.android.exoplayer2.trackselection.TrackSelection;
  import com.google.android.exoplayer2.upstream.LoaderErrorThrower;
  
  /**
   * An {@link ChunkSource} for DASH streams.
   */
  public interface DashChunkSource extends ChunkSource {
  
    /** Factory for {@link DashChunkSource}s. */
    interface Factory {
  
      /**
       * @param manifestLoaderErrorThrower Throws errors affecting loading of manifests.
       * @param manifest The initial manifest.
       * @param periodIndex The index of the corresponding period in the manifest.
       * @param adaptationSetIndices The indices of the corresponding adaptation sets in the period.
       * @param trackSelection The track selection.
       * @param elapsedRealtimeOffsetMs If known, an estimate of the instantaneous difference between
       *     server-side unix time and {@link SystemClock#elapsedRealtime()} in milliseconds,
       *     specified as the server's unix time minus the local elapsed time. If unknown, set to 0.
       * @param enableEventMessageTrack Whether the chunks generated by the source may output an event
       *     message track.
       * @param enableCea608Track Whether the chunks generated by the source may output a CEA-608
       *     track.
       * @return The created {@link DashChunkSource}.
       */
      DashChunkSource createDashChunkSource(
          LoaderErrorThrower manifestLoaderErrorThrower,
          DashManifest manifest,
          int periodIndex,
          int[] adaptationSetIndices,
          TrackSelection trackSelection,
          int type,
          long elapsedRealtimeOffsetMs,
          boolean enableEventMessageTrack,
          boolean enableCea608Track,
          @Nullable PlayerTrackEmsgHandler playerEmsgHandler);
    }
  
    /**
     * Updates the manifest.
     *
     * @param newManifest The new manifest.
     */
    void updateManifest(DashManifest newManifest, int periodIndex);
  }
  