2021-12-27 01:00:00 +01:00
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/* HuffEnc.h -- Huffman encoding
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2025-07-05 02:00:00 +02:00
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Igor Pavlov : Public domain */
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2021-12-27 01:00:00 +01:00
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2023-06-21 02:00:00 +02:00
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#ifndef ZIP7_INC_HUFF_ENC_H
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#define ZIP7_INC_HUFF_ENC_H
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2021-12-27 01:00:00 +01:00
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#include "7zTypes.h"
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EXTERN_C_BEGIN
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2025-07-05 02:00:00 +02:00
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#define Z7_HUFFMAN_LEN_MAX 16
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2021-12-27 01:00:00 +01:00
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/*
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Conditions:
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2025-07-05 02:00:00 +02:00
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2 <= num <= 1024 = 2 ^ NUM_BITS
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2021-12-27 01:00:00 +01:00
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Sum(freqs) < 4M = 2 ^ (32 - NUM_BITS)
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2025-07-05 02:00:00 +02:00
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1 <= maxLen <= 16 = Z7_HUFFMAN_LEN_MAX
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2021-12-27 01:00:00 +01:00
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Num_Items(p) >= HUFFMAN_TEMP_SIZE(num)
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*/
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void Huffman_Generate(const UInt32 *freqs, UInt32 *p, Byte *lens, UInt32 num, UInt32 maxLen);
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EXTERN_C_END
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#endif
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