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/*****************************************************************
|
| Copyright 2002-2008 Axiomatic Systems, LLC
|
| $Id: SampleEntry.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 SampleEntry extends ContainerAtom {
private int dataReferenceIndex;
SampleEntry(int format, int size, RandomAccessFile source, AtomFactory atomFactory) throws IOException, InvalidFormatException {
super(format, size, false, source);
// read the fields before the children atoms
int fieldsSize = getFieldsSize();
readFields(source);
// read children atoms (ex: esds and maybe others)
readChildren(atomFactory, source, size-HEADER_SIZE-fieldsSize);
}
public void write(DataOutputStream stream) throws IOException {
// write the header
writeHeader(stream);
// write the fields
writeFields(stream);
// write the children atoms
writeChildren(stream);
}
protected int getFieldsSize() {
return 8;
}
protected void readFields(RandomAccessFile source) throws IOException {
source.skipBytes(6);
dataReferenceIndex = source.readUnsignedShort();
}
protected void writeFields(DataOutputStream stream) throws IOException {
byte[] reserved = new byte[] { 0,0,0,0,0,0 };
stream.write(reserved);
stream.writeShort(dataReferenceIndex);
}
}
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