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Release: v2.1.6 - Added VaptVupt 2.40

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Cristian Cezar Moisés 2026-04-22 03:46:59 -03:00
commit 572031910c
41 changed files with 4309 additions and 741 deletions
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22
include/vv_ans.h
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@ -1,9 +1,3 @@
/* VaptVupt codec — originally Apache-2.0 by Cristian Cezar Moisés
* Integrated into Zupt — MIT License
* Copyright (c) 2026 Cristian Cezar Moisés
* SPDX-License-Identifier: MIT AND Apache-2.0
*/
/*
* VaptVupt — tANS Entropy Codec (v2: sparse header + 4-way interleaved)
*
@ -103,15 +97,31 @@ vva_error_t vva_decode_ctx(const uint8_t *src, size_t src_len,
#define VVA_ML_CODES 36 /* Match length code count */
#define VVA_OF_CODES 27 /* Offset code count: 3 rep + 24 explicit */
#define VVA_LL_CODES 36 /* Literal-run length code count (covers 0-65536+) */
vva_error_t vva_encode_sequences(const uint8_t *tokens, size_t tok_len,
uint8_t *dst, size_t dst_cap, size_t *dst_len,
int off_bytes);
/* Format-v2 variant: encodes match-length codes using ml_base_v2
* (min_match=3). Used for 'T' tag blocks. Added v2.34.0. */
vva_error_t vva_encode_sequences_v2(const uint8_t *tokens, size_t tok_len,
uint8_t *dst, size_t dst_cap, size_t *dst_len,
int off_bytes);
vva_error_t vva_decode_sequences(const uint8_t *src, size_t src_len,
uint8_t *dst, size_t dst_cap, size_t *dst_len,
const uint8_t *dst_base);
/* Format-v2 variant: same wire payload as vva_decode_sequences but
* interprets match-length codes with a table shifted down by 1
* (min_match=3 instead of 4). Produced by tag 'T' (VV_ENTROPY_SEQ_V2)
* blocks; closes the ~10% binary-compression gap vs gzip-9. Added
* v2.33.0. */
vva_error_t vva_decode_sequences_v2(const uint8_t *src, size_t src_len,
uint8_t *dst, size_t dst_cap, size_t *dst_len,
const uint8_t *dst_base);
static inline size_t vva_bound(size_t src_len) {
/* Context model header can be up to ~10KB, seq coding adds 3 table headers */
return 12288 + (src_len * 15 + 7) / 8 + 16;