public static byte[] Compress(this byte[] buffer)
{
MemoryStream inputStream = new MemoryStream(buffer);
MemoryStream outputStream = new MemoryStream(buffer.Length / 8);
LZMAEncoder = new Encoder();
byte[] properties = LZMAEncoder.getCoderProperties();
try
{
LZMAEncoder.Code(inputStream, outputStream, buffer.Length, buffer.Length / 8, null);
}
catch (Exception e)
{
throw new Exception(e.Message);
}
byte[] compressedData = outputStream.ToArray();
int size = 17 + compressedData.Length;
using (MemoryStream finalStream = new MemoryStream(size))
{
///Check if compression got worse if did return original value
if (size > buffer.Length)
return buffer;
finalStream.Write(LZMAID);
finalStream.Write(buffer.Length);
finalStream.Write(compressedData.Length);
finalStream.Write(properties);
finalStream.Write(compressedData);
return finalStream.ToArray();
}
}
