content: /*
   * Copyright (C) 2017 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.hls;
  
  import android.net.Uri;
  import android.util.Pair;
  import com.google.android.exoplayer2.Format;
  import com.google.android.exoplayer2.drm.DrmInitData;
  import com.google.android.exoplayer2.extractor.Extractor;
  import com.google.android.exoplayer2.util.TimestampAdjuster;
  import java.util.List;
  
  /**
   * Factory for HLS media chunk extractors.
   */
  public interface HlsExtractorFactory {
  
    HlsExtractorFactory DEFAULT = new DefaultHlsExtractorFactory();
  
    /**
     * Creates an {@link Extractor} for extracting HLS media chunks.
     *
     * @param previousExtractor A previously used {@link Extractor} which can be reused if the current
     *     chunk is a continuation of the previously extracted chunk, or null otherwise. It is the
     *     responsibility of implementers to only reuse extractors that are suited for reusage.
     * @param uri The URI of the media chunk.
     * @param format A {@link Format} associated with the chunk to extract.
     * @param muxedCaptionFormats List of muxed caption {@link Format}s. Null if no closed caption
     *     information is available in the master playlist.
     * @param drmInitData {@link DrmInitData} associated with the chunk.
     * @param timestampAdjuster Adjuster corresponding to the provided discontinuity sequence number.
     * @return A pair containing the {@link Extractor} and a boolean that indicates whether it is a
     *     packed audio extractor. The first element may be {@code previousExtractor} if the factory
     *     has determined it can be re-used.
     */
    Pair<Extractor, Boolean> createExtractor(Extractor previousExtractor, Uri uri, Format format,
        List<Format> muxedCaptionFormats, DrmInitData drmInitData,
        TimestampAdjuster timestampAdjuster);
  
  }
  