1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
///////////////////////////////////////////////////////////////////////////////
//
/// \file easy_encoder.c
/// \brief Easy .xz Stream encoder initialization
//
// Author: Lasse Collin
//
// This file has been put into the public domain.
// You can do whatever you want with this file.
//
///////////////////////////////////////////////////////////////////////////////
#include "easy_preset.h"
#include "stream_encoder.h"
struct lzma_coder_s {
lzma_next_coder stream_encoder;
lzma_options_easy opt_easy;
};
static lzma_ret
easy_encode(lzma_coder *coder, lzma_allocator *allocator,
const uint8_t *restrict in, size_t *restrict in_pos,
size_t in_size, uint8_t *restrict out,
size_t *restrict out_pos, size_t out_size, lzma_action action)
{
return coder->stream_encoder.code(
coder->stream_encoder.coder, allocator,
in, in_pos, in_size, out, out_pos, out_size, action);
}
static void
easy_encoder_end(lzma_coder *coder, lzma_allocator *allocator)
{
lzma_next_end(&coder->stream_encoder, allocator);
lzma_free(coder, allocator);
return;
}
static lzma_ret
easy_encoder_init(lzma_next_coder *next, lzma_allocator *allocator,
uint32_t preset, lzma_check check)
{
lzma_next_coder_init(easy_encoder_init, next, allocator);
if (next->coder == NULL) {
next->coder = lzma_alloc(sizeof(lzma_coder), allocator);
if (next->coder == NULL)
return LZMA_MEM_ERROR;
next->code = &easy_encode;
next->end = &easy_encoder_end;
next->coder->stream_encoder = LZMA_NEXT_CODER_INIT;
}
if (lzma_easy_preset(&next->coder->opt_easy, preset))
return LZMA_OPTIONS_ERROR;
return lzma_stream_encoder_init(&next->coder->stream_encoder,
allocator, next->coder->opt_easy.filters, check);
}
extern LZMA_API(lzma_ret)
lzma_easy_encoder(lzma_stream *strm, uint32_t preset, lzma_check check)
{
lzma_next_strm_init(easy_encoder_init, strm, preset, check);
strm->internal->supported_actions[LZMA_RUN] = true;
strm->internal->supported_actions[LZMA_SYNC_FLUSH] = true;
strm->internal->supported_actions[LZMA_FULL_FLUSH] = true;
strm->internal->supported_actions[LZMA_FINISH] = true;
return LZMA_OK;
}
|
