public void Encode(Stream input, Stream output)
{
if (input.Length > 0xFFFFFF)
{
throw new InvalidOperationException("Data to compress is too long.");
}
var compressionHeader = new[] { (byte)(0x20 + _bitDepth), (byte)input.Length, (byte)((input.Length >> 8) & 0xFF), (byte)((input.Length >> 16) & 0xFF) };
output.Write(compressionHeader, 0, 4);
_encoder.Encode(input, output);
}
public void Encode(Stream input, Stream output, IHuffmanTreeBuilder treeBuilder)
{
if (input.Length > 0x1FFFFFFF)
{
throw new InvalidOperationException("Data to compress is too long.");
}
var huffmanMode = _bitDepth == 4 ? 2 : 3;
var compressionHeader = new[] {
(byte)((byte)(input.Length << 3) | huffmanMode),
(byte)(input.Length >> 5),
(byte)(input.Length >> 13),
(byte)(input.Length >> 21)
};
output.Write(compressionHeader, 0, 4);
_encoder.Encode(input, output, treeBuilder);
}