org.monte.media.tiff.TIFFOutputStream Maven / Gradle / Ivy
/*
* @(#)TIFFOutputStream.java 1.0 2011-02-27
*
* Copyright (c) 2011 Werner Randelshofer, Goldau, Switzerland.
* All rights reserved.
*
* You may not use, copy or modify this file, except in compliance with the
* license agreement you entered into with Werner Randelshofer.
* For details see accompanying license terms.
*/
package org.monte.media.tiff;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.ByteOrder;
import java.util.Stack;
import javax.imageio.stream.ImageOutputStream;
/**
* {@code TIFFOutputStream}.
*
* References:
*
* TIFF TM Revision 6.0. Final — June 3, 1992.
* Adobe Systems Inc.
* http://www.exif.org/specifications.html
*
* @author Werner Randelshofer
* @version 1.0 2011-02-27 Created.
*/
public class TIFFOutputStream extends OutputStream {
private ImageOutputStream out;
private long offset;
private Stack ifdStack=new Stack();
private enum State {
INITIALIZED, STARTED, FINISHED
};
private State state = State.INITIALIZED;
private long firstIFDOffset = 8;
public TIFFOutputStream(ImageOutputStream out) throws IOException {
this.out = out;
this.offset = out.getStreamPosition();
}
public void setByteOrder(ByteOrder bo) {
if (state == State.INITIALIZED && bo != out.getByteOrder()) {
throw new IllegalStateException("Can't change byte order within TIFF file");
}
out.setByteOrder(bo);
}
public ByteOrder getByteOrder() {
return out.getByteOrder();
}
public long getStreamPosition() throws IOException {
return out.getStreamPosition() - offset;
}
public void seek(long position) throws IOException {
out.seek(position + offset);
}
@Override
public void write(int b) throws IOException {
ensureStarted();
out.write(b);
}
@Override
public void write(byte[] b, int off, int len) throws IOException {
ensureStarted();
out.write(b, off, len);
}
public void writeIFD(IFD ifd, long nextIFD) throws IOException {
ensureStarted();
writeSHORT(ifd.getCount());
long ifdOffset=getStreamPosition();
long valueOffset=getStreamPosition()+12*ifd.getCount()+4;
for (int i=0,n=ifd.getCount();i