content: /*
   * Copyright 2002-2019 Drew Noakes and contributors
   *
   *    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
   *
   *        https://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.
   *
   * More information about this project is available at:
   *
   *    https://drewnoakes.com/code/exif/
   *    https://github.com/drewnoakes/metadata-extractor
   */
  package com.drew.metadata.mp4.media;
  
  import com.drew.lang.SequentialReader;
  import com.drew.lang.annotations.NotNull;
  import com.drew.metadata.Metadata;
  import com.drew.metadata.mp4.Mp4BoxTypes;
  import com.drew.metadata.mp4.Mp4Context;
  import com.drew.metadata.mp4.Mp4MediaHandler;
  
  import java.io.IOException;
  
  public class Mp4HintHandler extends Mp4MediaHandler<Mp4HintDirectory>
  {
      public Mp4HintHandler(Metadata metadata, Mp4Context context)
      {
          super(metadata, context);
      }
  
      @NotNull
      @Override
      protected Mp4HintDirectory getDirectory()
      {
          return new Mp4HintDirectory();
      }
  
      @Override
      protected String getMediaInformation()
      {
          return Mp4BoxTypes.BOX_HINT_MEDIA_INFO;
      }
  
      @Override
      protected void processSampleDescription(@NotNull SequentialReader reader)
      {
      }
  
      @Override
      protected void processMediaInformation(@NotNull SequentialReader reader) throws IOException
      {
          // ISO/IED 14496-12:2015 pg.169
  
          reader.skip(4); // one byte version, three bytes flags
  
          int maxPduSize = reader.getUInt16();
          int avgPduSize = reader.getUInt16();
          long maxBitrate = reader.getUInt32();
          long avgBitrate = reader.getUInt32();
  
          directory.setInt(Mp4HintDirectory.TAG_MAX_PDU_SIZE, maxPduSize);
          directory.setInt(Mp4HintDirectory.TAG_AVERAGE_PDU_SIZE, avgPduSize);
          directory.setLong(Mp4HintDirectory.TAG_MAX_BITRATE, maxBitrate);
          directory.setLong(Mp4HintDirectory.TAG_AVERAGE_BITRATE, avgBitrate);
      }
  
      @Override
      protected void processTimeToSample(@NotNull SequentialReader reader, Mp4Context context) throws IOException
      {
      }
  }
  