]> icculus.org git repositories - icculus/xz.git/blob - debug/full_flush.c
Removed --disable-encoder and --disable-decoder. Use the values
[icculus/xz.git] / debug / full_flush.c
1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 /// \file       full_flush.c
4 /// \brief      Encode files using LZMA_FULL_FLUSH
5 //
6 //  Author:     Lasse Collin
7 //
8 //  This file has been put into the public domain.
9 //  You can do whatever you want with this file.
10 //
11 ///////////////////////////////////////////////////////////////////////////////
12
13 #include "sysdefs.h"
14 #include <stdio.h>
15
16
17 static lzma_stream strm = LZMA_STREAM_INIT;
18 static FILE *file_in;
19
20
21 static void
22 encode(size_t size, lzma_action action)
23 {
24         static const size_t CHUNK = 64;
25         uint8_t in[CHUNK];
26         uint8_t out[CHUNK];
27         lzma_ret ret;
28
29         do {
30                 if (strm.avail_in == 0 && size > 0) {
31                         const size_t amount = MIN(size, CHUNK);
32                         strm.avail_in = fread(in, 1, amount, file_in);
33                         strm.next_in = in;
34                         size -= amount; // Intentionally not using avail_in.
35                 }
36
37                 strm.next_out = out;
38                 strm.avail_out = CHUNK;
39
40                 ret = lzma_code(&strm, size == 0 ? action : LZMA_RUN);
41
42                 if (ret != LZMA_OK && ret != LZMA_STREAM_END) {
43                         fprintf(stderr, "%s:%u: %s: ret == %d\n",
44                                         __FILE__, __LINE__, __func__, ret);
45                         exit(1);
46                 }
47
48                 fwrite(out, 1, CHUNK - strm.avail_out, stdout);
49
50         } while (size > 0 || strm.avail_out == 0);
51
52         if ((action == LZMA_RUN && ret != LZMA_OK)
53                         || (action != LZMA_RUN && ret != LZMA_STREAM_END)) {
54                 fprintf(stderr, "%s:%u: %s: ret == %d\n",
55                                 __FILE__, __LINE__, __func__, ret);
56                 exit(1);
57         }
58 }
59
60
61 int
62 main(int argc, char **argv)
63 {
64         file_in = argc > 1 ? fopen(argv[1], "rb") : stdin;
65
66
67         // Config
68         lzma_options_lzma opt_lzma;
69         if (lzma_lzma_preset(&opt_lzma, 1)) {
70                 fprintf(stderr, "preset failed\n");
71                 exit(1);
72         }
73         lzma_filter filters[LZMA_FILTERS_MAX + 1];
74         filters[0].id = LZMA_FILTER_LZMA2;
75         filters[0].options = &opt_lzma;
76         filters[1].id = LZMA_VLI_UNKNOWN;
77
78         // Init
79         if (lzma_stream_encoder(&strm, filters, LZMA_CHECK_CRC32) != LZMA_OK) {
80                 fprintf(stderr, "init failed\n");
81                 exit(1);
82         }
83
84 //      if (lzma_easy_encoder(&strm, 1)) {
85 //              fprintf(stderr, "init failed\n");
86 //              exit(1);
87 //      }
88
89         // Encoding
90         encode(0, LZMA_FULL_FLUSH);
91         encode(6, LZMA_FULL_FLUSH);
92         encode(0, LZMA_FULL_FLUSH);
93         encode(7, LZMA_FULL_FLUSH);
94         encode(0, LZMA_FULL_FLUSH);
95         encode(0, LZMA_FINISH);
96
97         // Clean up
98         lzma_end(&strm);
99
100         return 0;
101 }