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/*
* 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.coremedia.iso.boxes;
import com.coremedia.iso.IsoTypeReader;
import com.coremedia.iso.IsoTypeWriter;
import java.nio.ByteBuffer;
import static com.googlecode.mp4parser.util.CastUtils.l2i;
/**
* The chunk offset table gives the index of each chunk into the containing file. Defined in ISO/IEC 14496-12.
*/
public class StaticChunkOffsetBox extends ChunkOffsetBox {
public static final String TYPE = "stco";
private long[] chunkOffsets = new long[0];
public StaticChunkOffsetBox() {
super(TYPE);
}
public long[] getChunkOffsets() {
return chunkOffsets;
}
protected long getContentSize() {
return 8 + chunkOffsets.length * 4;
}
public void setChunkOffsets(long[] chunkOffsets) {
this.chunkOffsets = chunkOffsets;
}
@Override
public void _parseDetails(ByteBuffer content) {
parseVersionAndFlags(content);
int entryCount = l2i(IsoTypeReader.readUInt32(content));
chunkOffsets = new long[entryCount];
for (int i = 0; i < entryCount; i++) {
chunkOffsets[i] = IsoTypeReader.readUInt32(content);
}
}
@Override
protected void getContent(ByteBuffer byteBuffer) {
writeVersionAndFlags(byteBuffer);
IsoTypeWriter.writeUInt32(byteBuffer, chunkOffsets.length);
for (long chunkOffset : chunkOffsets) {
IsoTypeWriter.writeUInt32(byteBuffer, chunkOffset);
}
}
}
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