1 /* 2 * Copyright 2008 CoreMedia AG, Hamburg 3 * 4 * Licensed under the Apache License, Version 2.0 (the License); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an AS IS BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.coremedia.iso.boxes; 18 19 import com.coremedia.iso.IsoTypeReader; 20 import com.coremedia.iso.IsoTypeWriter; 21 import com.googlecode.mp4parser.AbstractFullBox; 22 23 import java.nio.ByteBuffer; 24 25 /** 26 * <code> 27 * Box Type: 'mvhd'<br> 28 * Container: {@link MovieBox} ('moov')<br> 29 * Mandatory: Yes<br> 30 * Quantity: Exactly one<br><br> 31 * </code> 32 * This box defines overall information which is media-independent, and relevant to the entire presentation 33 * considered as a whole. 34 */ 35 public class MovieHeaderBox extends AbstractFullBox { 36 private long creationTime; 37 private long modificationTime; 38 private long timescale; 39 private long duration; 40 private double rate = 1.0; 41 private float volume = 1.0f; 42 private long[] matrix = new long[]{0x00010000, 0, 0, 0, 0x00010000, 0, 0, 0, 0x40000000}; 43 private long nextTrackId; 44 45 private int previewTime; 46 private int previewDuration; 47 private int posterTime; 48 private int selectionTime; 49 private int selectionDuration; 50 private int currentTime; 51 52 53 public static final String TYPE = "mvhd"; 54 55 public MovieHeaderBox() { 56 super(TYPE); 57 } 58 59 public long getCreationTime() { 60 return creationTime; 61 } 62 63 public long getModificationTime() { 64 return modificationTime; 65 } 66 67 public long getTimescale() { 68 return timescale; 69 } 70 71 public long getDuration() { 72 return duration; 73 } 74 75 public double getRate() { 76 return rate; 77 } 78 79 public float getVolume() { 80 return volume; 81 } 82 83 public long[] getMatrix() { 84 return matrix; 85 } 86 87 public long getNextTrackId() { 88 return nextTrackId; 89 } 90 91 protected long getContentSize() { 92 long contentSize = 4; 93 if (getVersion() == 1) { 94 contentSize += 28; 95 } else { 96 contentSize += 16; 97 } 98 contentSize += 80; 99 return contentSize; 100 } 101 102 @Override 103 public void _parseDetails(ByteBuffer content) { 104 parseVersionAndFlags(content); 105 if (getVersion() == 1) { 106 creationTime = IsoTypeReader.readUInt64(content); 107 modificationTime = IsoTypeReader.readUInt64(content); 108 timescale = IsoTypeReader.readUInt32(content); 109 duration = IsoTypeReader.readUInt64(content); 110 } else { 111 creationTime = IsoTypeReader.readUInt32(content); 112 modificationTime = IsoTypeReader.readUInt32(content); 113 timescale = IsoTypeReader.readUInt32(content); 114 duration = IsoTypeReader.readUInt32(content); 115 } 116 rate = IsoTypeReader.readFixedPoint1616(content); 117 volume = IsoTypeReader.readFixedPoint88(content); 118 IsoTypeReader.readUInt16(content); 119 IsoTypeReader.readUInt32(content); 120 IsoTypeReader.readUInt32(content); 121 matrix = new long[9]; 122 for (int i = 0; i < 9; i++) { 123 matrix[i] = IsoTypeReader.readUInt32(content); 124 } 125 126 previewTime = content.getInt(); 127 previewDuration = content.getInt(); 128 posterTime = content.getInt(); 129 selectionTime = content.getInt(); 130 selectionDuration = content.getInt(); 131 currentTime = content.getInt(); 132 133 nextTrackId = IsoTypeReader.readUInt32(content); 134 135 } 136 137 public String toString() { 138 StringBuilder result = new StringBuilder(); 139 result.append("MovieHeaderBox["); 140 result.append("creationTime=").append(getCreationTime()); 141 result.append(";"); 142 result.append("modificationTime=").append(getModificationTime()); 143 result.append(";"); 144 result.append("timescale=").append(getTimescale()); 145 result.append(";"); 146 result.append("duration=").append(getDuration()); 147 result.append(";"); 148 result.append("rate=").append(getRate()); 149 result.append(";"); 150 result.append("volume=").append(getVolume()); 151 for (int i = 0; i < matrix.length; i++) { 152 result.append(";"); 153 result.append("matrix").append(i).append("=").append(matrix[i]); 154 } 155 result.append(";"); 156 result.append("nextTrackId=").append(getNextTrackId()); 157 result.append("]"); 158 return result.toString(); 159 } 160 161 162 @Override 163 protected void getContent(ByteBuffer byteBuffer) { 164 writeVersionAndFlags(byteBuffer); 165 if (getVersion() == 1) { 166 IsoTypeWriter.writeUInt64(byteBuffer, creationTime); 167 IsoTypeWriter.writeUInt64(byteBuffer, modificationTime); 168 IsoTypeWriter.writeUInt32(byteBuffer, timescale); 169 IsoTypeWriter.writeUInt64(byteBuffer, duration); 170 } else { 171 IsoTypeWriter.writeUInt32(byteBuffer, creationTime); 172 IsoTypeWriter.writeUInt32(byteBuffer, modificationTime); 173 IsoTypeWriter.writeUInt32(byteBuffer, timescale); 174 IsoTypeWriter.writeUInt32(byteBuffer, duration); 175 } 176 IsoTypeWriter.writeFixedPont1616(byteBuffer, rate); 177 IsoTypeWriter.writeFixedPont88(byteBuffer, volume); 178 IsoTypeWriter.writeUInt16(byteBuffer, 0); 179 IsoTypeWriter.writeUInt32(byteBuffer, 0); 180 IsoTypeWriter.writeUInt32(byteBuffer, 0); 181 182 183 for (int i = 0; i < 9; i++) { 184 IsoTypeWriter.writeUInt32(byteBuffer, matrix[i]); 185 } 186 187 188 byteBuffer.putInt(previewTime); 189 byteBuffer.putInt(previewDuration); 190 byteBuffer.putInt(posterTime); 191 byteBuffer.putInt(selectionTime); 192 byteBuffer.putInt(selectionDuration); 193 byteBuffer.putInt(currentTime); 194 195 IsoTypeWriter.writeUInt32(byteBuffer, nextTrackId); 196 } 197 198 199 public void setCreationTime(long creationTime) { 200 this.creationTime = creationTime; 201 } 202 203 public void setModificationTime(long modificationTime) { 204 this.modificationTime = modificationTime; 205 } 206 207 public void setTimescale(long timescale) { 208 this.timescale = timescale; 209 } 210 211 public void setDuration(long duration) { 212 this.duration = duration; 213 } 214 215 public void setRate(double rate) { 216 this.rate = rate; 217 } 218 219 public void setVolume(float volume) { 220 this.volume = volume; 221 } 222 223 public void setMatrix(long[] matrix) { 224 this.matrix = matrix; 225 } 226 227 public void setNextTrackId(long nextTrackId) { 228 this.nextTrackId = nextTrackId; 229 } 230 231 public int getPreviewTime() { 232 return previewTime; 233 } 234 235 public void setPreviewTime(int previewTime) { 236 this.previewTime = previewTime; 237 } 238 239 public int getPreviewDuration() { 240 return previewDuration; 241 } 242 243 public void setPreviewDuration(int previewDuration) { 244 this.previewDuration = previewDuration; 245 } 246 247 public int getPosterTime() { 248 return posterTime; 249 } 250 251 public void setPosterTime(int posterTime) { 252 this.posterTime = posterTime; 253 } 254 255 public int getSelectionTime() { 256 return selectionTime; 257 } 258 259 public void setSelectionTime(int selectionTime) { 260 this.selectionTime = selectionTime; 261 } 262 263 public int getSelectionDuration() { 264 return selectionDuration; 265 } 266 267 public void setSelectionDuration(int selectionDuration) { 268 this.selectionDuration = selectionDuration; 269 } 270 271 public int getCurrentTime() { 272 return currentTime; 273 } 274 275 public void setCurrentTime(int currentTime) { 276 this.currentTime = currentTime; 277 } 278 } 279
