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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 com.googlecode.mp4parser.AbstractFullBox;
import java.nio.ByteBuffer;
import static com.googlecode.mp4parser.util.CastUtils.l2i;
/**
* This box provides a compact marking of the random access points withinthe stream. The table is arranged in
* strictly decreasinf order of sample number. Defined in ISO/IEC 14496-12.
*/
public class SyncSampleBox extends AbstractFullBox {
public static final String TYPE = "stss";
private long[] sampleNumber;
public SyncSampleBox() {
super(TYPE);
}
/**
* Gives the numbers of the samples that are random access points in the stream.
*
* @return random access sample numbers.
*/
public long[] getSampleNumber() {
return sampleNumber;
}
protected long getContentSize() {
return sampleNumber.length * 4 + 8;
}
@Override
public void _parseDetails(ByteBuffer content) {
parseVersionAndFlags(content);
int entryCount = l2i(IsoTypeReader.readUInt32(content));
sampleNumber = new long[entryCount];
for (int i = 0; i < entryCount; i++) {
sampleNumber[i] = IsoTypeReader.readUInt32(content);
}
}
@Override
protected void getContent(ByteBuffer byteBuffer) {
writeVersionAndFlags(byteBuffer);
IsoTypeWriter.writeUInt32(byteBuffer, sampleNumber.length);
for (long aSampleNumber : sampleNumber) {
IsoTypeWriter.writeUInt32(byteBuffer, aSampleNumber);
}
}
public String toString() {
return "SyncSampleBox[entryCount=" + sampleNumber.length + "]";
}
public void setSampleNumber(long[] sampleNumber) {
this.sampleNumber = sampleNumber;
}
}
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