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A generic parser and writer for all ISO 14496 based files (MP4, Quicktime, DCF, PDCF, ...)
/*
* Copyright 2008 CoreMedia AG, Hamburg
*
* Licensed under the Apache License, Version 2.0 (the License);
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.mp4parser;
import com.coremedia.iso.IsoTypeReader;
import com.coremedia.iso.IsoTypeWriter;
import com.coremedia.iso.boxes.FullBox;
import com.googlecode.mp4parser.annotations.DoNotParseDetail;
import java.nio.ByteBuffer;
/**
* Base class for all ISO Full boxes.
*/
public abstract class AbstractFullBox extends AbstractBox implements FullBox {
private int version;
private int flags;
protected AbstractFullBox(String type) {
super(type);
}
protected AbstractFullBox(String type, byte[] userType) {
super(type, userType);
}
@DoNotParseDetail
public int getVersion() {
// it's faster than the join point
if (!isParsed) {
parseDetails();
}
return version;
}
public void setVersion(int version) {
this.version = version;
}
@DoNotParseDetail
public int getFlags() {
// it's faster than the join point
if (!isParsed) {
parseDetails();
}
return flags;
}
public void setFlags(int flags) {
this.flags = flags;
}
/**
* Parses the version/flags header and returns the remaining box size.
*
* @param content the ByteBuffer
that contains the version & flag
* @return number of bytes read
*/
protected final long parseVersionAndFlags(ByteBuffer content) {
version = IsoTypeReader.readUInt8(content);
flags = IsoTypeReader.readUInt24(content);
return 4;
}
protected final void writeVersionAndFlags(ByteBuffer bb) {
IsoTypeWriter.writeUInt8(bb, version);
IsoTypeWriter.writeUInt24(bb, flags);
}
}