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/* Copyright (c) 2014, David A. Clunie DBA Pixelmed Publishing. All rights reserved. */
package com.pixelmed.codec.jpeg;
/**
* <p>A JPEG APP0 JFIF Marker Segment.</p>
*
* @author dclunie
*/
public class MarkerSegmentAPP0JFIF {
private static final String identString = "@(#) $Header: /userland/cvs/codec/com/pixelmed/codec/jpeg/MarkerSegmentAPP0JFIF.java,v 1.1 2014/03/21 15:28:07 dclunie Exp $";
private int version;
private int units;
private int Xdensity;
private int Ydensity;
private int Xthumbnail;
private int Ythumbnail;
public MarkerSegmentAPP0JFIF(byte[] b,int length) {
// identifier is 4 bytes plus a zero byte
version=Utilities.extract16be(b,5);
units=Utilities.extract8(b,7);
Xdensity=Utilities.extract16be(b,8);
Ydensity=Utilities.extract16be(b,10);
Xthumbnail=Utilities.extract8(b,12);
Ythumbnail=Utilities.extract8(b,13);
}
public String toString() {
StringBuffer buf = new StringBuffer();
buf.append("\n\tAPP0 JFIF:\n");
buf.append("\t\t Version = "+Utilities.toPaddedHexString(version,2)+"\n");
buf.append("\t\t Units for the X and Y densities = "+units+"\n");
buf.append("\t\t Horizontal pixel density = "+Xdensity+"\n");
buf.append("\t\t Vertical pixel density = "+Ydensity+"\n");
buf.append("\t\t Thumbnail horizontal pixel count = "+Xthumbnail+"\n");
buf.append("\t\t Thumbnail vertical pixel count = "+Ythumbnail+"\n");
return buf.toString();
}
}
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