www.pudn.com > arithmetic_demo.zip > encode.cpp

// encode.cpp : Defines the entry point for the console application. 
// 
 
#include "stdafx.h" 
 
#include "model.h" 
 
 
class CEncode 
: public CArithmeticModel 
{ 
public: 
	void PutByte(int byte) 
	{ 
        putc(byte, stdout);			/* now full.                */ 
	} 
	void main() 
	{ 
		start_model();				/* Set up other modules.    */ 
		start_outputing_bits(); 
		start_encoding(); 
		for (;;) {					/* Loop through characters. */ 
			int ch; int symbol; 
			ch = getc(stdin);			/* Read the next character. */ 
			if (ch==EOF) break;			/* Exit loop on end-of-file.*/ 
			symbol = char_to_index[ch];		/* Translate to an index.   */ 
			encode_symbol(symbol,cum_freq);		/* Encode that symbol.      */ 
			update_model(symbol);			/* Update the model.        */ 
		} 
		encode_symbol(EOF_symbol,cum_freq);		/* Encode the EOF symbol.   */ 
		done_encoding();				/* Send the last few bits.  */ 
		done_outputing_bits(); 
	} 
}; 
 
int main(int /*argc*/, char* /*argv[]*/) 
{ 
	_setmode( _fileno( stdin ), _O_BINARY ); 
	_setmode( _fileno( stdout ), _O_BINARY ); 
 
	CEncode model; 
	model.main(); 
 
	return 0; 
}