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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 import com.coremedia.iso.IsoFile;
     20 import com.coremedia.iso.IsoTypeReader;
     21 import com.googlecode.mp4parser.AbstractBox;
     22 
     23 import java.nio.ByteBuffer;
     24 
     25 /**
     26  * The Original Format Box contains the four-character-code of the original untransformed sample description.
     27  * See ISO/IEC 14496-12 for details.
     28  *
     29  * @see ProtectionSchemeInformationBox
     30  */
     31 
     32 public class OriginalFormatBox extends AbstractBox {
     33     public static final String TYPE = "frma";
     34 
     35     private String dataFormat = "    ";
     36 
     37     public OriginalFormatBox() {
     38         super("frma");
     39     }
     40 
     41     public String getDataFormat() {
     42         return dataFormat;
     43     }
     44 
     45 
     46     public void setDataFormat(String dataFormat) {
     47         assert dataFormat.length() == 4;
     48         this.dataFormat = dataFormat;
     49     }
     50 
     51     protected long getContentSize() {
     52         return 4;
     53     }
     54 
     55     @Override
     56     public void _parseDetails(ByteBuffer content) {
     57         dataFormat = IsoTypeReader.read4cc(content);
     58     }
     59 
     60     @Override
     61     protected void getContent(ByteBuffer byteBuffer) {
     62         byteBuffer.put(IsoFile.fourCCtoBytes(dataFormat));
     63     }
     64 
     65 
     66     public String toString() {
     67         return "OriginalFormatBox[dataFormat=" + getDataFormat() + "]";
     68     }
     69 }
     70