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

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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.sampleentry;


import com.coremedia.iso.IsoFile;
import com.coremedia.iso.IsoTypeReader;
import com.coremedia.iso.IsoTypeWriter;
import com.googlecode.mp4parser.AbstractBox;

import java.nio.ByteBuffer;

/**
 * 

4cc = "{@value #TYPE}"

* AMR audio format specific subbox of an audio sample entry. * * @see com.coremedia.iso.boxes.sampleentry.AudioSampleEntry */ public class AmrSpecificBox extends AbstractBox { public static final String TYPE = "damr"; private String vendor; private int decoderVersion; private int modeSet; private int modeChangePeriod; private int framesPerSample; public AmrSpecificBox() { super(TYPE); } public String getVendor() { return vendor; } public int getDecoderVersion() { return decoderVersion; } public int getModeSet() { return modeSet; } public int getModeChangePeriod() { return modeChangePeriod; } public int getFramesPerSample() { return framesPerSample; } protected long getContentSize() { return 9; } @Override public void _parseDetails(ByteBuffer content) { byte[] v = new byte[4]; content.get(v); vendor = IsoFile.bytesToFourCC(v); decoderVersion = IsoTypeReader.readUInt8(content); modeSet = IsoTypeReader.readUInt16(content); modeChangePeriod = IsoTypeReader.readUInt8(content); framesPerSample = IsoTypeReader.readUInt8(content); } public void getContent(ByteBuffer byteBuffer) { byteBuffer.put(IsoFile.fourCCtoBytes(vendor)); IsoTypeWriter.writeUInt8(byteBuffer, decoderVersion); IsoTypeWriter.writeUInt16(byteBuffer, modeSet); IsoTypeWriter.writeUInt8(byteBuffer, modeChangePeriod); IsoTypeWriter.writeUInt8(byteBuffer, framesPerSample); } public String toString() { StringBuilder buffer = new StringBuilder(); buffer.append("AmrSpecificBox[vendor=").append(getVendor()); buffer.append(";decoderVersion=").append(getDecoderVersion()); buffer.append(";modeSet=").append(getModeSet()); buffer.append(";modeChangePeriod=").append(getModeChangePeriod()); buffer.append(";framesPerSample=").append(getFramesPerSample()); buffer.append("]"); return buffer.toString(); } }




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