xref: /freebsd/contrib/xz/src/liblzma/lzma/lzma2_encoder.h (revision 3c4ba5f55438f7afd4f4b0b56f88f2bb505fd6a6)
1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 /// \file       lzma2_encoder.h
4 /// \brief      LZMA2 encoder
5 ///
6 //  Authors:    Igor Pavlov
7 //              Lasse Collin
8 //
9 //  This file has been put into the public domain.
10 //  You can do whatever you want with this file.
11 //
12 ///////////////////////////////////////////////////////////////////////////////
13 
14 #ifndef LZMA_LZMA2_ENCODER_H
15 #define LZMA_LZMA2_ENCODER_H
16 
17 #include "common.h"
18 
19 
20 /// Maximum number of bytes of actual data per chunk (no headers)
21 #define LZMA2_CHUNK_MAX (UINT32_C(1) << 16)
22 
23 /// Maximum uncompressed size of LZMA chunk (no headers)
24 #define LZMA2_UNCOMPRESSED_MAX (UINT32_C(1) << 21)
25 
26 /// Maximum size of LZMA2 headers
27 #define LZMA2_HEADER_MAX 6
28 
29 /// Size of a header for uncompressed chunk
30 #define LZMA2_HEADER_UNCOMPRESSED 3
31 
32 
33 extern lzma_ret lzma_lzma2_encoder_init(
34 		lzma_next_coder *next, const lzma_allocator *allocator,
35 		const lzma_filter_info *filters);
36 
37 extern uint64_t lzma_lzma2_encoder_memusage(const void *options);
38 
39 extern lzma_ret lzma_lzma2_props_encode(const void *options, uint8_t *out);
40 
41 extern uint64_t lzma_lzma2_block_size(const void *options);
42 
43 #endif
44