internal RiffChunk(RiffList @base, Stream source, long loadOffset)
{
IsWriting = false;
IsOpen = false;
_baseList = @base;
BaseStream = source;
var b = new byte[4];
_localOffset = loadOffset;
if ((loadOffset & 1) != 0)
{
throw new InvalidDataException("Chunk offset is ODD!");
}
source.Seek(loadOffset, SeekOrigin.Begin);
source.Read(b, 0, 4);
_chunkId = "" + (char)b[0] + (char)b[1] + (char)b[2] + (char)b[3];
source.Read(b, 0, 4);
_length = (b[3] << 24) | (b[2] << 16) | (b[1] << 8) | b[0];
if (_baseList != null)
{
_baseList.Capture();
}
IsOpen = true;
}
internal RiffChunk(RiffList @base, Stream target, String id)
{
IsOpen = false;
IsWriting = true;
_baseList = @base;
if (_chunkId.Length != 4)
{
throw new ArgumentException("chunkId must be 4 characters in length");
}
BaseStream = target;
_localOffset = (uint)target.Position;
if ((_localOffset & 1) != 0)
{
throw new InvalidDataException("Chunk offset is ODD!");
}
_chunkId = id;
target.WriteByte((byte)_chunkId[0]);
target.WriteByte((byte)_chunkId[1]);
target.WriteByte((byte)_chunkId[2]);
target.WriteByte((byte)_chunkId[3]);
target.WriteByte(0);
target.WriteByte(0);
target.WriteByte(0);
target.WriteByte(0);
if (_baseList != null)
{
_baseList.Capture();
}
IsOpen = true;
}