/// <summary>
/// Applies a compressin to the buffer and returns a result within a stream.
/// </summary>
/// <param name="buffer">The buffer to compress.</param>
/// <param name="padding">The padding offset to pre-allocate.</param>
/// <param name="context">The context of the processing.</param>
/// <returns>The length segment</returns>
public static BufferSegment Process(ByteStream stream, int padding, ProcessingContext context)
{
stream.Flush();
// Calculate the maximum compressed length
var outSize = Snappy.MaxEncodedLen((int)stream.Length);
var output = context.BufferReserve(outSize + padding);
// Acquire a snappy encoder which comes in with a table for state
using (var snappy = Snappy.Acquire())
{
output.Size = snappy.Encode(stream.GetBuffer(), 0, (int)stream.Length, output, padding) + padding;
return(output);
}
}
