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A generic parser and writer for all ISO 14496 based files (MP4, Quicktime, DCF, PDCF, ...)

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/*
 * Copyright 2009 castLabs GmbH, Berlin
 *
 * 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.mp4parser.iso14496.part12;

import com.coremedia.iso.IsoFile;
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;

/*
aligned(8) class SampleAuxiliaryInformationOffsetsBox
            extends FullBox(‘saio’, version, flags)
{
            if (flags & 1) {
                        unsigned int(32) aux_info_type;
                        unsigned int(32) aux_info_type_parameter;
            }
            unsigned int(32) entry_count;
            if ( version == 0 )
            {
                        unsigned int(32) offset[ entry_count ];
            }
            else
            {
                        unsigned int(64) offset[ entry_count ];
            }
}
 */

/**
 * 

4cc = "{@value #TYPE}"

*/ public class SampleAuxiliaryInformationOffsetsBox extends AbstractFullBox { public static final String TYPE = "saio"; private long[] offsets = new long[0]; private String auxInfoType; private String auxInfoTypeParameter; public SampleAuxiliaryInformationOffsetsBox() { super(TYPE); } @Override protected long getContentSize() { return 8 + (getVersion() == 0 ? 4 * offsets.length : 8 * offsets.length) + ((getFlags() & 1) == 1 ? 8 : 0); } @Override protected void getContent(ByteBuffer byteBuffer) { writeVersionAndFlags(byteBuffer); if ((getFlags() & 1) == 1) { byteBuffer.put(IsoFile.fourCCtoBytes(auxInfoType)); byteBuffer.put(IsoFile.fourCCtoBytes(auxInfoTypeParameter)); } IsoTypeWriter.writeUInt32(byteBuffer, offsets.length); for (Long offset : offsets) { if (getVersion() == 0) { IsoTypeWriter.writeUInt32(byteBuffer, offset); } else { IsoTypeWriter.writeUInt64(byteBuffer, offset); } } } @Override public void _parseDetails(ByteBuffer content) { parseVersionAndFlags(content); if ((getFlags() & 1) == 1) { auxInfoType = IsoTypeReader.read4cc(content); auxInfoTypeParameter = IsoTypeReader.read4cc(content); } int entryCount = l2i(IsoTypeReader.readUInt32(content)); offsets = new long[entryCount]; for (int i = 0; i < entryCount; i++) { if (getVersion() == 0) { offsets[i] = IsoTypeReader.readUInt32(content); } else { offsets[i] = IsoTypeReader.readUInt64(content); } } } public String getAuxInfoType() { return auxInfoType; } public void setAuxInfoType(String auxInfoType) { this.auxInfoType = auxInfoType; } public String getAuxInfoTypeParameter() { return auxInfoTypeParameter; } public void setAuxInfoTypeParameter(String auxInfoTypeParameter) { this.auxInfoTypeParameter = auxInfoTypeParameter; } public long[] getOffsets() { return offsets; } public void setOffsets(long[] offsets) { this.offsets = offsets; } }




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