private static byte[] EncodeBlock(byte[] input, int topupSize, int blockSize)
{
using (var outputStream = new MemoryStream())
using (var inputStream = new MemoryStream(input))
{
using (var inputReader = new BinaryReader(inputStream, Encoding.UTF8, false))
using (var outputWriter = new BinaryWriter(outputStream, Encoding.UTF8, true))
using (var encoder = new LZ4BlockEncoder(LZ4Level.L00_FAST, blockSize))
{
var inputBuffer = new byte[topupSize];
var outputBuffer = new byte[LZ4Codec.MaximumOutputSize(encoder.BlockSize)];
while (true)
{
var bytes = inputReader.Read(inputBuffer, 0, inputBuffer.Length);
if (bytes == 0)
{
Flush(outputWriter, encoder, outputBuffer);
outputWriter.Write(-1);
break;
}
Write(outputWriter, encoder, inputBuffer, bytes, outputBuffer);
}
}
return(outputStream.ToArray());
}
}
public Lz4CompressionEncoder(int bufferSize, int blockSize)
: base(bufferSize)
{
_encoder = new LZ4BlockEncoder(LZ4Level.L10_OPT, blockSize);
_compressedBuffer = new byte[LZ4Codec.MaximumOutputSize(blockSize)];
}
