| /* |
| * 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); |
| } |
| } |