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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;

import com.coremedia.iso.IsoTypeReader;
import com.coremedia.iso.IsoTypeWriter;
import com.googlecode.mp4parser.AbstractFullBox;
import com.googlecode.mp4parser.util.DateHelper;
import com.googlecode.mp4parser.util.Matrix;

import java.nio.ByteBuffer;
import java.util.Date;

/**
 * 

4cc = "{@value #TYPE}"

* * Box Type: 'mvhd'
* Container: {@link MovieBox} ('moov')
* Mandatory: Yes
* Quantity: Exactly one

*
* This box defines overall information which is media-independent, and relevant to the entire presentation * considered as a whole. */ public class MovieHeaderBox extends AbstractFullBox { private Date creationTime; private Date modificationTime; private long timescale; private long duration; private double rate = 1.0; private float volume = 1.0f; private Matrix matrix = Matrix.ROTATE_0; private long nextTrackId; private int previewTime; private int previewDuration; private int posterTime; private int selectionTime; private int selectionDuration; private int currentTime; public static final String TYPE = "mvhd"; public MovieHeaderBox() { super(TYPE); } public Date getCreationTime() { return creationTime; } public Date getModificationTime() { return modificationTime; } public long getTimescale() { return timescale; } public long getDuration() { return duration; } public double getRate() { return rate; } public float getVolume() { return volume; } public Matrix getMatrix() { return matrix; } public long getNextTrackId() { return nextTrackId; } protected long getContentSize() { long contentSize = 4; if (getVersion() == 1) { contentSize += 28; } else { contentSize += 16; } contentSize += 80; return contentSize; } @Override public void _parseDetails(ByteBuffer content) { parseVersionAndFlags(content); if (getVersion() == 1) { creationTime = DateHelper.convert(IsoTypeReader.readUInt64(content)); modificationTime = DateHelper.convert(IsoTypeReader.readUInt64(content)); timescale = IsoTypeReader.readUInt32(content); duration = IsoTypeReader.readUInt64(content); } else { creationTime = DateHelper.convert(IsoTypeReader.readUInt32(content)); modificationTime = DateHelper.convert(IsoTypeReader.readUInt32(content)); timescale = IsoTypeReader.readUInt32(content); duration = IsoTypeReader.readUInt32(content); } rate = IsoTypeReader.readFixedPoint1616(content); volume = IsoTypeReader.readFixedPoint88(content); IsoTypeReader.readUInt16(content); IsoTypeReader.readUInt32(content); IsoTypeReader.readUInt32(content); matrix = Matrix.fromByteBuffer(content); previewTime = content.getInt(); previewDuration = content.getInt(); posterTime = content.getInt(); selectionTime = content.getInt(); selectionDuration = content.getInt(); currentTime = content.getInt(); nextTrackId = IsoTypeReader.readUInt32(content); } public String toString() { StringBuilder result = new StringBuilder(); result.append("MovieHeaderBox["); 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("rate=").append(getRate()); result.append(";"); result.append("volume=").append(getVolume()); result.append(";"); result.append("matrix=").append(matrix); result.append(";"); result.append("nextTrackId=").append(getNextTrackId()); result.append("]"); return result.toString(); } @Override protected void getContent(ByteBuffer byteBuffer) { writeVersionAndFlags(byteBuffer); if (getVersion() == 1) { IsoTypeWriter.writeUInt64(byteBuffer, DateHelper.convert(creationTime)); IsoTypeWriter.writeUInt64(byteBuffer, DateHelper.convert(modificationTime)); IsoTypeWriter.writeUInt32(byteBuffer, timescale); IsoTypeWriter.writeUInt64(byteBuffer, duration); } else { IsoTypeWriter.writeUInt32(byteBuffer, DateHelper.convert(creationTime)); IsoTypeWriter.writeUInt32(byteBuffer, DateHelper.convert(modificationTime)); IsoTypeWriter.writeUInt32(byteBuffer, timescale); IsoTypeWriter.writeUInt32(byteBuffer, duration); } IsoTypeWriter.writeFixedPoint1616(byteBuffer, rate); IsoTypeWriter.writeFixedPoint88(byteBuffer, volume); IsoTypeWriter.writeUInt16(byteBuffer, 0); IsoTypeWriter.writeUInt32(byteBuffer, 0); IsoTypeWriter.writeUInt32(byteBuffer, 0); matrix.getContent(byteBuffer); byteBuffer.putInt(previewTime); byteBuffer.putInt(previewDuration); byteBuffer.putInt(posterTime); byteBuffer.putInt(selectionTime); byteBuffer.putInt(selectionDuration); byteBuffer.putInt(currentTime); IsoTypeWriter.writeUInt32(byteBuffer, nextTrackId); } public void setCreationTime(Date creationTime) { this.creationTime = creationTime; if (DateHelper.convert(creationTime) >= (1l << 32)) { setVersion(1); } } public void setModificationTime(Date modificationTime) { this.modificationTime = modificationTime; if (DateHelper.convert(modificationTime) >= (1l << 32)) { setVersion(1); } } public void setTimescale(long timescale) { this.timescale = timescale; } public void setDuration(long duration) { this.duration = duration; if (duration >= (1l << 32)) { setVersion(1); } } public void setRate(double rate) { this.rate = rate; } public void setVolume(float volume) { this.volume = volume; } public void setMatrix(Matrix matrix) { this.matrix = matrix; } public void setNextTrackId(long nextTrackId) { this.nextTrackId = nextTrackId; } public int getPreviewTime() { return previewTime; } public void setPreviewTime(int previewTime) { this.previewTime = previewTime; } public int getPreviewDuration() { return previewDuration; } public void setPreviewDuration(int previewDuration) { this.previewDuration = previewDuration; } public int getPosterTime() { return posterTime; } public void setPosterTime(int posterTime) { this.posterTime = posterTime; } public int getSelectionTime() { return selectionTime; } public void setSelectionTime(int selectionTime) { this.selectionTime = selectionTime; } public int getSelectionDuration() { return selectionDuration; } public void setSelectionDuration(int selectionDuration) { this.selectionDuration = selectionDuration; } public int getCurrentTime() { return currentTime; } public void setCurrentTime(int currentTime) { this.currentTime = currentTime; } }




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