dlib C++ Library - entropy_encoder_model_kernel_6.h

// Copyright (C) 2005 Davis E. King (davis@dlib.net)
// License: Boost Software License See LICENSE.txt for the full license.
#ifndef DLIB_ENTROPY_ENCODER_MODEL_KERNEl_6_
#define DLIB_ENTROPY_ENCODER_MODEL_KERNEl_6_
#include "../algs.h"
#include "entropy_encoder_model_kernel_abstract.h"
#include "../assert.h"
namespace dlib
{
 template <
 unsigned long alphabet_size,
 typename entropy_encoder 
 >
 class entropy_encoder_model_kernel_6 
 {
 /*!
 INITIAL VALUE
 Initially this object's finite context model is empty
 CONVENTION
 &get_entropy_encoder() == coder
 
 This is an order-(-1) model. So it doesn't really do anything.
 Every symbol has the same probability.
 !*/
 public:
 typedef entropy_encoder entropy_encoder_type;
 entropy_encoder_model_kernel_6 (
 entropy_encoder& coder
 );
 virtual ~entropy_encoder_model_kernel_6 (
 );
 
 inline void clear(
 );
 inline void encode (
 unsigned long symbol
 );
 entropy_encoder& get_entropy_encoder (
 ) { return coder; }
 static unsigned long get_alphabet_size (
 ) { return alphabet_size; }
 private:
 entropy_encoder& coder;
 // restricted functions
 entropy_encoder_model_kernel_6(entropy_encoder_model_kernel_6<alphabet_size,entropy_encoder>&); // copy constructor
 entropy_encoder_model_kernel_6<alphabet_size,entropy_encoder>& operator=(entropy_encoder_model_kernel_6<alphabet_size,entropy_encoder>&); // assignment operator
 }; 
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
 // member function definitions
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
 template <
 unsigned long alphabet_size,
 typename entropy_encoder 
 >
 entropy_encoder_model_kernel_6<alphabet_size,entropy_encoder>::
 entropy_encoder_model_kernel_6 (
 entropy_encoder& coder_
 ) : 
 coder(coder_)
 {
 COMPILE_TIME_ASSERT( 1 < alphabet_size && alphabet_size < 65535 );
 }
// ----------------------------------------------------------------------------------------
 template <
 unsigned long alphabet_size,
 typename entropy_encoder 
 >
 entropy_encoder_model_kernel_6<alphabet_size,entropy_encoder>::
 ~entropy_encoder_model_kernel_6 (
 )
 {
 }
 
// ----------------------------------------------------------------------------------------
 template <
 unsigned long alphabet_size,
 typename entropy_encoder 
 >
 void entropy_encoder_model_kernel_6<alphabet_size,entropy_encoder>::
 clear(
 )
 {
 }
// ----------------------------------------------------------------------------------------
 template <
 unsigned long alphabet_size,
 typename entropy_encoder 
 >
 void entropy_encoder_model_kernel_6<alphabet_size,entropy_encoder>::
 encode (
 unsigned long symbol
 )
 {
 // use order minus one context
 coder.encode(symbol,symbol+1,alphabet_size); 
 }
// ----------------------------------------------------------------------------------------
}
#endif // DLIB_ENTROPY_ENCODER_MODEL_KERNEl_6_