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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;
/**
* This box defines overall information which is media-independent, and relevant to the entire presentation
* considered as a whole.
*/
public class MediaHeaderBox extends AbstractFullBox {
public static final String TYPE = "mdhd";
private long creationTime;
private long modificationTime;
private long timescale;
private long duration;
private String language;
public MediaHeaderBox() {
super(TYPE);
}
public long getCreationTime() {
return creationTime;
}
public long getModificationTime() {
return modificationTime;
}
public long getTimescale() {
return timescale;
}
public long getDuration() {
return duration;
}
public String getLanguage() {
return language;
}
protected long getContentSize() {
long contentSize = 4;
if (getVersion() == 1) {
contentSize += 8 + 8 + 4 + 8;
} else {
contentSize += 4 + 4 + 4 + 4;
}
contentSize += 2;
contentSize += 2;
return contentSize;
}
public void setCreationTime(long creationTime) {
this.creationTime = creationTime;
}
public void setModificationTime(long modificationTime) {
this.modificationTime = modificationTime;
}
public void setTimescale(long timescale) {
this.timescale = timescale;
}
public void setDuration(long duration) {
this.duration = duration;
}
public void setLanguage(String language) {
this.language = language;
}
@Override
public void _parseDetails(ByteBuffer content) {
parseVersionAndFlags(content);
if (getVersion() == 1) {
creationTime = IsoTypeReader.readUInt64(content);
modificationTime = IsoTypeReader.readUInt64(content);
timescale = IsoTypeReader.readUInt32(content);
duration = IsoTypeReader.readUInt64(content);
} else {
creationTime = IsoTypeReader.readUInt32(content);
modificationTime = IsoTypeReader.readUInt32(content);
timescale = IsoTypeReader.readUInt32(content);
duration = IsoTypeReader.readUInt32(content);
}
language = IsoTypeReader.readIso639(content);
IsoTypeReader.readUInt16(content);
}
public String toString() {
StringBuilder result = new StringBuilder();
result.append("MediaHeaderBox[");
result.append("creationTime=").append(getCreationTime());
result.append(";");
result.append("modificationTime=").append(getModificationTime());
result.append(";");
result.append("timescale=").append(getTimescale());
result.append(";");
result.append("duration=").append(getDuration());
result.append(";");
result.append("language=").append(getLanguage());
result.append("]");
return result.toString();
}
protected void getContent(ByteBuffer byteBuffer) {
writeVersionAndFlags(byteBuffer);
if (getVersion() == 1) {
IsoTypeWriter.writeUInt64(byteBuffer, creationTime);
IsoTypeWriter.writeUInt64(byteBuffer, modificationTime);
IsoTypeWriter.writeUInt32(byteBuffer, timescale);
IsoTypeWriter.writeUInt64(byteBuffer, duration);
} else {
IsoTypeWriter.writeUInt32(byteBuffer, creationTime);
IsoTypeWriter.writeUInt32(byteBuffer, modificationTime);
IsoTypeWriter.writeUInt32(byteBuffer, timescale);
IsoTypeWriter.writeUInt32(byteBuffer, duration);
}
IsoTypeWriter.writeIso639(byteBuffer, language);
IsoTypeWriter.writeUInt16(byteBuffer, 0);
}
}
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