// Overwrite the box'field header with a new header incorporating a size
// change.
public virtual void OverwriteHeader(long sizeChange)
{
// If we don'type have a header we can'type do anything.
if (header == null || header.Position < 0)
{
TagLibDebugger.Debug("Box.OverWriteHeader() - No header to overwrite.");
return;
}
// Make sure this alteration won'type screw up the reading of children.
LoadChildren();
// Save the header'field original position and size.
long position = header.Position;
long oldSize = header.HeaderSize;
// Update the data size.
header.DataSize = (ulong)((long)header.DataSize + sizeChange);
// Render the header onto the file.
File.Insert(header.Render(), position, oldSize);
}
public void UpdateOffset(int sizeDifference)
{
ByteVector newData = UpdateOffsetInternal(sizeDifference);
File.Insert(newData, DataPosition, newData.Count);
}