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      1 /*
      2  * Copyright 2008 CoreMedia AG, Hamburg
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the License);
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *     http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an AS IS BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.coremedia.iso.boxes;
     18 
     19 
     20 import com.coremedia.iso.IsoTypeReader;
     21 import com.coremedia.iso.IsoTypeWriter;
     22 import com.coremedia.iso.Utf8;
     23 import com.googlecode.mp4parser.AbstractFullBox;
     24 
     25 import java.nio.ByteBuffer;
     26 
     27 /**
     28  * Meta information in a 'udta' box about a track.
     29  * Defined in 3GPP 26.244.
     30  *
     31  * @see com.coremedia.iso.boxes.UserDataBox
     32  */
     33 public class AuthorBox extends AbstractFullBox {
     34     public static final String TYPE = "auth";
     35 
     36     private String language;
     37     private String author;
     38 
     39     public AuthorBox() {
     40         super(TYPE);
     41     }
     42 
     43     /**
     44      * Declares the language code for the {@link #getAuthor()} return value. See ISO 639-2/T for the set of three
     45      * character codes.Each character is packed as the difference between its ASCII value and 0x60. The code is
     46      * confined to being three lower-case letters, so these values are strictly positive.
     47      *
     48      * @return the language code
     49      */
     50     public String getLanguage() {
     51         return language;
     52     }
     53 
     54     /**
     55      * Author information.
     56      *
     57      * @return the author
     58      */
     59     public String getAuthor() {
     60         return author;
     61     }
     62 
     63     public void setLanguage(String language) {
     64         this.language = language;
     65     }
     66 
     67     public void setAuthor(String author) {
     68         this.author = author;
     69     }
     70 
     71     protected long getContentSize() {
     72         return 7 + Utf8.utf8StringLengthInBytes(author);
     73     }
     74 
     75     @Override
     76     public void _parseDetails(ByteBuffer content) {
     77         parseVersionAndFlags(content);
     78         language = IsoTypeReader.readIso639(content);
     79         author = IsoTypeReader.readString(content);
     80     }
     81 
     82     @Override
     83     protected void getContent(ByteBuffer byteBuffer) {
     84         writeVersionAndFlags(byteBuffer);
     85         IsoTypeWriter.writeIso639(byteBuffer, language);
     86         byteBuffer.put(Utf8.convert(author));
     87         byteBuffer.put((byte) 0);
     88     }
     89 
     90 
     91     public String toString() {
     92         return "AuthorBox[language=" + getLanguage() + ";author=" + getAuthor() + "]";
     93     }
     94 }
     95