p7zip-rar/C/HuffEnc.h

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2017-10-11 12:40:22 +02:00
/* HuffEnc.h -- Huffman encoding
2013-01-18 : Igor Pavlov : Public domain */
#ifndef __HUFF_ENC_H
#define __HUFF_ENC_H
#include "7zTypes.h"
EXTERN_C_BEGIN
/*
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);
EXTERN_C_END
#endif