1 package com.coremedia.iso.boxes; 2 3 import com.coremedia.iso.IsoTypeReader; 4 import com.coremedia.iso.IsoTypeWriter; 5 6 import java.nio.ByteBuffer; 7 8 import static com.googlecode.mp4parser.util.CastUtils.l2i; 9 10 /** 11 * Abstract Chunk Offset Box 12 */ 13 public class ChunkOffset64BitBox extends ChunkOffsetBox { 14 public static final String TYPE = "co64"; 15 private long[] chunkOffsets; 16 17 public ChunkOffset64BitBox() { 18 super(TYPE); 19 } 20 21 @Override 22 public long[] getChunkOffsets() { 23 return chunkOffsets; 24 } 25 26 @Override 27 protected long getContentSize() { 28 return 8 + 8 * chunkOffsets.length; 29 } 30 31 @Override 32 public void _parseDetails(ByteBuffer content) { 33 parseVersionAndFlags(content); 34 int entryCount = l2i(IsoTypeReader.readUInt32(content)); 35 chunkOffsets = new long[entryCount]; 36 for (int i = 0; i < entryCount; i++) { 37 chunkOffsets[i] = IsoTypeReader.readUInt64(content); 38 } 39 } 40 41 @Override 42 protected void getContent(ByteBuffer byteBuffer) { 43 writeVersionAndFlags(byteBuffer); 44 IsoTypeWriter.writeUInt32(byteBuffer, chunkOffsets.length); 45 for (long chunkOffset : chunkOffsets) { 46 IsoTypeWriter.writeUInt64(byteBuffer, chunkOffset); 47 } 48 } 49 50 51 } 52
