vld.h

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/*--------------------------------------------------------------------
 *
 * (C) Copyright Koninklijke Philips Electronics NV 2006. 
 * All rights reserved. This software is licensed under the terms of
 * version 2.1 of the GNU Lesser General Public License as published 
 * by the Free Software Foundation. For licensing and warranty
 * information, see the file COPYING in the main directory.
 *
 *------------------------------------------------------------------*/

#ifndef VLD_H
#define VLD_H

#include "yapi.h"
#include "vya.h"
#include "datatype.h"

class VLD : public Process
{
public:
  //constructors
  VLD(
    const Id&               n, 
    In<Marker>&             markerIn,
    In<Bits>&               restartIntervalBitsIn,
    In<Bits>&               Cin,
    In<VYAimageDepth>&      imageDepthIn,
    In<VYAimageComponent>&  imageComponentIdIn,
    In<VYAimageH>&          imageHIn,
    In<VYAimageV>&          imageVIn,
    In<VYAimageDepth>&      scanDepthIn,
    In<VYAimageComponent>&  scanComponentIdIn,
    In<Bits>&               HuffmanTableIn,
    In<VYAid>&              HuffmanTableIdIn,
    Out<VYApixel>&          Cout
  );

  // type member function
  const char* type() const { return "VLD"; }

  // main member function
  void main();

private:
  // input ports
  InPort<Marker>            markerInP;
  InPort<Bits>              restartIntervalBitsInP;
  InPort<Bits>              CinP;
  InPort<VYAimageDepth>     imageDepthInP;
  InPort<VYAimageComponent> imageComponentIdInP;
  InPort<VYAimageH>         imageHInP;
  InPort<VYAimageV>         imageVInP;
  InPort<VYAimageDepth>     scanDepthInP;
  InPort<VYAimageComponent> scanComponentIdInP;
  InPort<Bits>              HuffmanTableInP;
  InPort<VYAid>             HuffmanTableIdInP;

  // output ports
  OutPort<VYApixel>         CoutP;

  // member functions
  unsigned char get_symbol(int select);
  unsigned int get_size();
  int get_bits(int number);
  VYApixel reformat(unsigned long S, int good);
  int load_huff_tables();
  void load_restart_interval();
  void abort();
  
  // member variables
  int window;
  int bit_count;
  unsigned int restartInterval;
};

#endif

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