/**
* Write out the selector list and Huffman tables
* @Exception on any I/O error writing the data
*/
private void writeSelectorsAndHuffmanTables()
{
int totalSelectors = selectors.Length;
int totalTables = huffmanCodeLengths.GetLength(0);
bitOutputStream.WriteBits (3, (uint)totalTables);
bitOutputStream.WriteBits (15, (uint)totalSelectors);
// Write the selectors
var selectorMTF = new MoveToFront();
for (int i = 0; i < totalSelectors; i++)
{
bitOutputStream.WriteUnary (selectorMTF.ValueToFront (selectors[i]));
}
// Write the Huffman tables
for (int i = 0; i < totalTables; i++)
{
var currentLength = huffmanCodeLengths[i,0];
bitOutputStream.WriteBits (5, (uint)currentLength);
for (var j = 0; j < mtfAlphabetSize; j++) {
var codeLength = huffmanCodeLengths[i,j];
var value = (currentLength < codeLength) ? 2u : 3u;
var delta = Math.Abs (codeLength - currentLength);
while (delta-- > 0) {
bitOutputStream.WriteBits (2, value);
}
bitOutputStream.WriteBoolean (false);
currentLength = codeLength;
}
}
}
