package org.jaudiotagger.tag.asf;

 import org.jaudiotagger.audio.asf.data.ContentBranding;

 import org.jaudiotagger.audio.asf.data.ContainerType;

 import org.jaudiotagger.audio.asf.data.MetadataDescriptor;

 import org.jaudiotagger.tag.asf.AbstractAsfTagImageField;

 import org.jaudiotagger.tag.asf.AsfFieldKey;

 /**

  * This field represents the image content of the banner image which is stored

  * in the {@linkplain ContentBranding content branding} chunk of ASF files.<br>

  * 

  * @author Christian Laireiter

  */

 public class AsfTagBannerField extends AbstractAsfTagImageField

 {

     /**

      * Creates an instance with no image data.<br>

      */

     public AsfTagBannerField() {

         super(AsfFieldKey.BANNER_IMAGE);

     }

     /**

      * Creates an instance with given descriptor as image content.<br>

      * 

      * @param descriptor

      *            image content.

      */

     public AsfTagBannerField(final MetadataDescriptor descriptor) {

         super(descriptor);

         assert descriptor.getName().equals(

                 AsfFieldKey.BANNER_IMAGE.getFieldName());

     }

     /**

      * Creates an instance with specified data as image content.

      * 

      * @param imageData

      *            image content.

      */

     public AsfTagBannerField(final byte[] imageData) {

         super(new MetadataDescriptor(ContainerType.CONTENT_BRANDING,

                 AsfFieldKey.BANNER_IMAGE.getFieldName(),

                 MetadataDescriptor.TYPE_BINARY));

         this.toWrap.setBinaryValue(imageData);

     }

     /**

      * {@inheritDoc}

      */

     @Override

     public int getImageDataSize() {

         return this.toWrap.getRawDataSize();

     }

     /**

      * {@inheritDoc}

      */

     @Override

     public byte[] getRawImageData() {

         return getRawContent();

     }

 }