package org.jaudiotagger.tag.mp4.atom;

 import org.jaudiotagger.audio.generic.Utils;

 import org.jaudiotagger.audio.mp4.atom.AbstractMp4Box;

 import org.jaudiotagger.audio.mp4.atom.Mp4BoxHeader;

 import java.nio.ByteBuffer;

 /**

  * This box is used within ---- boxes to hold the data name/descriptor

  */

 public class Mp4NameBox extends AbstractMp4Box

 {

     public static final String IDENTIFIER = "name";

     private String name;

     //TODO Are these misnamed, are these version flag bytes or just null bytes

     public static final int VERSION_LENGTH = 1;

     public static final int FLAGS_LENGTH = 3;

     public static final int PRE_DATA_LENGTH = VERSION_LENGTH + FLAGS_LENGTH;

     /**

      * @param header     parentHeader info

      * @param dataBuffer data of box (doesnt include parentHeader data)

      */

     public Mp4NameBox(Mp4BoxHeader header, ByteBuffer dataBuffer)

     {

         this.header = header;

         //Double check

         if (!header.getId().equals(IDENTIFIER))

         {

             throw new RuntimeException("Unable to process name box because identifier is:" + header.getId());

         }

         //Make slice so operations here don't effect position of main buffer

         this.dataBuffer = dataBuffer.slice();

         //issuer

         this.name = Utils.getString(this.dataBuffer, PRE_DATA_LENGTH, header.getDataLength() - PRE_DATA_LENGTH, header.getEncoding());

     }

     public String getName()

     {

         return name;

     }

 }