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comparison spandsp-0.0.3/spandsp-0.0.3/tests/v42bis_tests.c @ 5:f762bf195c4b

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import spandsp-0.0.3
author Peter Meerwald <pmeerw@cosy.sbg.ac.at>
date Fri, 25 Jun 2010 16:00:21 +0200
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4:26cd8f1ef0b1 5:f762bf195c4b
1 /*
2 * SpanDSP - a series of DSP components for telephony
3 *
4 * v42bis_tests.c
5 *
6 * Written by Steve Underwood <steveu@coppice.org>
7 *
8 * Copyright (C) 2005 Steve Underwood
9 *
10 * All rights reserved.
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2, as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 *
25 * $Id: v42bis_tests.c,v 1.18 2006/11/19 14:07:28 steveu Exp $
26 */
27
28 /* THIS IS A WORK IN PROGRESS. IT IS NOT FINISHED. */
29
30 /*! \page v42bis_tests_page V.42bis tests
31 \section v42bis_tests_page_sec_1 What does it do?
32 These tests compress the contents of a file specified on the command line, writing
33 the compressed data to v42bis_tests.v42bis. They then read back the contents of the
34 compressed file, decompress, and write the results to v42bis_tests.out. The contents
35 of this file should exactly match the original file.
36 */
37
38 #ifdef HAVE_CONFIG_H
39 #include <config.h>
40 #endif
41
42 #include <stdio.h>
43 #include <inttypes.h>
44 #include <stdlib.h>
45 #include <string.h>
46 #include <unistd.h>
47 #include <errno.h>
48 #include <fcntl.h>
49 #include <ctype.h>
50 #if defined(HAVE_TGMATH_H)
51 #include <tgmath.h>
52 #endif
53 #if defined(HAVE_MATH_H)
54 #include <math.h>
55 #endif
56 #include <assert.h>
57 #include <tiffio.h>
58
59 #include "spandsp.h"
60
61 #define COMPRESSED_FILE_NAME "v42bis_tests.v42bis"
62 #define OUTPUT_FILE_NAME "v42bis_tests.out"
63
64 int in_octets_to_date = 0;
65 int out_octets_to_date = 0;
66
67 static void frame_handler(void *user_data, const uint8_t *buf, int len)
68 {
69 int ret;
70
71 if ((ret = write((intptr_t) user_data, buf, len)) != len)
72 fprintf(stderr, "Write error %d/%d\n", ret, errno);
73 out_octets_to_date += len;
74 }
75
76 static void data_handler(void *user_data, const uint8_t *buf, int len)
77 {
78 int ret;
79
80 if ((ret = write((intptr_t) user_data, buf, len)) != len)
81 fprintf(stderr, "Write error %d/%d\n", ret, errno);
82 out_octets_to_date += len;
83 }
84
85 int main(int argc, char *argv[])
86 {
87 int len;
88 v42bis_state_t state_a;
89 v42bis_state_t state_b;
90 uint8_t buf[1024];
91 int in_fd;
92 int v42bis_fd;
93 int out_fd;
94 int do_compression;
95 int do_decompression;
96 time_t now;
97
98 do_compression = TRUE;
99 do_decompression = TRUE;
100 if (argc < 2)
101 {
102 fprintf(stderr, "Usage: %s <file>\n", argv[0]);
103 exit(2);
104 }
105 if (do_compression)
106 {
107 if ((in_fd = open(argv[1], O_RDONLY)) < 0)
108 {
109 fprintf(stderr, "Error opening file '%s'.\n", argv[1]);
110 exit(2);
111 }
112 if ((v42bis_fd = open(COMPRESSED_FILE_NAME, O_WRONLY | O_CREAT | O_TRUNC, 0666)) < 0)
113 {
114 fprintf(stderr, "Error opening file '%s'.\n", COMPRESSED_FILE_NAME);
115 exit(2);
116 }
117
118 time(&now);
119 v42bis_init(&state_a, 3, 512, 6, frame_handler, (void *) (intptr_t) v42bis_fd, 512, data_handler, NULL, 512);
120 v42bis_compression_control(&state_a, V42BIS_COMPRESSION_MODE_ALWAYS);
121 in_octets_to_date = 0;
122 out_octets_to_date = 0;
123 while ((len = read(in_fd, buf, 1024)) > 0)
124 {
125 if (v42bis_compress(&state_a, buf, len))
126 {
127 fprintf(stderr, "Bad return code from compression\n");
128 exit(2);
129 }
130 in_octets_to_date += len;
131 }
132 v42bis_compress_flush(&state_a);
133 printf("%d bytes compressed to %d bytes in %lds\n", in_octets_to_date, out_octets_to_date, time(NULL) - now);
134 close(in_fd);
135 close(v42bis_fd);
136 }
137
138 if (do_decompression)
139 {
140 /* Now open the files for the decompression. */
141 if ((v42bis_fd = open(COMPRESSED_FILE_NAME, O_RDONLY)) < 0)
142 {
143 fprintf(stderr, "Error opening file '%s'.\n", COMPRESSED_FILE_NAME);
144 exit(2);
145 }
146 if ((out_fd = open(OUTPUT_FILE_NAME, O_WRONLY | O_CREAT | O_TRUNC, 0666)) < 0)
147 {
148 fprintf(stderr, "Error opening file '%s'.\n", OUTPUT_FILE_NAME);
149 exit(2);
150 }
151
152 time(&now);
153 v42bis_init(&state_b, 3, 512, 6, frame_handler, (void *) (intptr_t) v42bis_fd, 512, data_handler, (void *) (intptr_t) out_fd, 512);
154 in_octets_to_date = 0;
155 out_octets_to_date = 0;
156 while ((len = read(v42bis_fd, buf, 1024)) > 0)
157 {
158 if (v42bis_decompress(&state_b, buf, len))
159 {
160 fprintf(stderr, "Bad return code from decompression\n");
161 exit(2);
162 }
163 in_octets_to_date += len;
164 }
165 v42bis_decompress_flush(&state_b);
166 printf("%d bytes decompressed to %d bytes in %lds\n", in_octets_to_date, out_octets_to_date, time(NULL) - now);
167 close(v42bis_fd);
168 close(out_fd);
169 }
170 return 0;
171 }
172 /*- End of function --------------------------------------------------------*/
173 /*- End of file ------------------------------------------------------------*/

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