#if !defined(RESIP_COMPRESSION_HXX)
#define RESIP_COMPRESSION_HXX

namespace osc
{
    class StateHandler;
    class Stack;
}

namespace resip
{

class Compression
{
   public:
     typedef enum
     {
       NONE,
       DEFLATE
     } Algorithm;

     Compression(Algorithm algorithm         = DEFLATE,
                 int stateMemorySize         = 8192,
                 int cyclesPerBit            = 64,
                 int decompressionMemorySize = 8192,
                 Data sigcompId              = Data::Empty);

     ~Compression();

     bool isEnabled() { return (mAlgorithm != NONE); }
     Algorithm getAlgorithm() const { return mAlgorithm; }
     osc::StateHandler &getStateHandler(){ return *mStateHandler; }

     void addCompressorsToStack(osc::Stack *);

     const Data &getSigcompId() {return mSigcompId;}

     /// Represents a compression configuration object with
     /// compression disabled
     static Compression Disabled;

   private:
     Algorithm          mAlgorithm;
     osc::StateHandler *mStateHandler;

     // This is the unique compartment identifier for this
     // client or server (or cluster of servers with shared state).
     // See draft-ietf-rohc-sigcomp-sip
     Data mSigcompId;
};

}

#endif

/* ====================================================================
 * The Vovida Software License, Version 1.0
 *
 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
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 * 2. Redistributions in binary form must reproduce the above copyright
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 * 4. Products derived from this software may not be called "VOCAL", nor
 *    may "VOCAL" appear in their name, without prior written
 *    permission of Vovida Networks, Inc.
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 * ====================================================================
 *
 * This software consists of voluntary contributions made by Vovida
 * Networks, Inc. and many individuals on behalf of Vovida Networks,
 * Inc.  For more information on Vovida Networks, Inc., please see
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