C/HuffEnc.h


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

/* HuffEnc.h -- functions for Huffman encoding
2008-03-26
Igor Pavlov
Public domain */

#ifndef __HUFFENC_H
#define __HUFFENC_H

#include "Types.h"

/*
Conditions:
  num <= 1024 = 2 ^ NUM_BITS
  Sum(freqs) < 4M = 2 ^ (32 - NUM_BITS)
  maxLen <= 16 = kMaxLen
  Num_Items(p) >= HUFFMAN_TEMP_SIZE(num)
*/
 
void Huffman_Generate(const UInt32 *freqs, UInt32 *p, Byte *lens, UInt32 num, UInt32 maxLen);

#endif