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/*****************************************************************
|
| Copyright 2002-2008 Axiomatic Systems, LLC
|
| $Id: UnknownAtom.java 196 2008-10-14 22:59:31Z bok $
|
| This file is part of Bento4/AP4 (MP4 Atom Processing Library).
|
| Unless you have obtained Bento4 under a difference license,
| this version of Bento4 is Bento4|GPL.
| Bento4|GPL is free software; you can redistribute it and/or modify
| it under the terms of the GNU General Public License as published by
| the Free Software Foundation; either version 2, or (at your option)
| any later version.
|
| Bento4|GPL is distributed in the hope that it will be useful,
| but WITHOUT ANY WARRANTY; without even the implied warranty of
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
| GNU General Public License for more details.
|
| You should have received a copy of the GNU General Public License
| along with Bento4|GPL; see the file COPYING. If not, write to the
| Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
| 02111-1307, USA.
|
****************************************************************/
package com.axiosys.bento4;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.RandomAccessFile;
public class UnknownAtom extends Atom {
private final RandomAccessFile source;
private final long sourceOffset;
public UnknownAtom(int type, int size, RandomAccessFile source, long sourceOffset) {
super(type, size, false);
this.source = source;
this.sourceOffset = sourceOffset;
}
public UnknownAtom(int type, int size, RandomAccessFile source) throws IOException {
this(type, size, source, source.getFilePointer());
}
public RandomAccessFile getSource() { return source; }
public long getSourceOffset() { return sourceOffset; }
protected void writeFields(DataOutputStream stream) throws IOException {
// position into the source
source.seek(sourceOffset);
// read/write using a buffer
int read;
byte[] buffer = new byte[4096];
while ((read = source.read(buffer)) != -1) {
stream.write(buffer, 0, read);
}
}
}
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