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comparison spandsp-0.0.3/spandsp-0.0.3/tests/r2_mf_tx_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 * r2_mf_tx_tests.c - Test the Bell MF generator.
5 *
6 * Written by Steve Underwood <steveu@coppice.org>
7 *
8 * Copyright (C) 2003 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: r2_mf_tx_tests.c,v 1.4 2006/11/19 14:07:27 steveu Exp $
26 */
27
28 /*! \file */
29
30 /*! \page r2_mf_tx_tests_page R2 MF generation tests
31 \section r2_mf_tx_tests_page_sec_1 What does it do?
32 ???.
33
34 \section r2_mf_tx_tests_page_sec_2 How does it work?
35 ???.
36 */
37
38 #ifdef HAVE_CONFIG_H
39 #include "config.h"
40 #endif
41
42 #include <stdlib.h>
43 #include <inttypes.h>
44 #include <string.h>
45 #include <stdio.h>
46 #if defined(HAVE_TGMATH_H)
47 #include <tgmath.h>
48 #endif
49 #if defined(HAVE_MATH_H)
50 #include <math.h>
51 #endif
52 #include <time.h>
53 #include <fcntl.h>
54 #include <audiofile.h>
55 #include <tiffio.h>
56
57 #include "spandsp.h"
58
59 #define OUTPUT_FILE_NAME "r2_mf.wav"
60
61 int main(int argc, char *argv[])
62 {
63 r2_mf_tx_state_t gen;
64 int16_t amp[1000];
65 int len;
66 AFfilehandle outhandle;
67 AFfilesetup filesetup;
68 int outframes;
69 int fwd;
70 int digit;
71 const char *digits = "0123456789BCDEF";
72
73 filesetup = afNewFileSetup();
74 if (filesetup == AF_NULL_FILESETUP)
75 {
76 fprintf(stderr, " Failed to create file setup\n");
77 exit(2);
78 }
79 afInitSampleFormat(filesetup, AF_DEFAULT_TRACK, AF_SAMPFMT_TWOSCOMP, 16);
80 afInitRate(filesetup, AF_DEFAULT_TRACK, 8000.0);
81 //afInitCompression(filesetup, AF_DEFAULT_TRACK, AF_COMPRESSION_G711_ALAW);
82 afInitFileFormat(filesetup, AF_FILE_WAVE);
83 afInitChannels(filesetup, AF_DEFAULT_TRACK, 1);
84
85 outhandle = afOpenFile(OUTPUT_FILE_NAME, "w", filesetup);
86 if (outhandle == AF_NULL_FILEHANDLE)
87 {
88 fprintf(stderr, " Cannot open wave file '%s'\n", OUTPUT_FILE_NAME);
89 exit(2);
90 }
91
92 r2_mf_tx_init(&gen);
93 fwd = FALSE;
94 for (digit = 0; digits[digit]; digit++)
95 {
96 len = r2_mf_tx(&gen, amp, 1000, fwd, digits[digit]);
97 printf("Generated %d samples of %c\n", len, digits[digit]);
98 if (len > 0)
99 {
100 outframes = afWriteFrames(outhandle,
101 AF_DEFAULT_TRACK,
102 amp,
103 len);
104 }
105 len = r2_mf_tx(&gen, amp, 1000, fwd, 0);
106 printf("Generated %d samples\n", len);
107 if (len > 0)
108 {
109 outframes = afWriteFrames(outhandle,
110 AF_DEFAULT_TRACK,
111 amp,
112 len);
113 }
114 }
115
116 fwd = TRUE;
117 for (digit = 0; digits[digit]; digit++)
118 {
119 len = r2_mf_tx(&gen, amp, 1000, fwd, digits[digit]);
120 printf("Generated %d samples of %c\n", len, digits[digit]);
121 if (len > 0)
122 {
123 outframes = afWriteFrames(outhandle,
124 AF_DEFAULT_TRACK,
125 amp,
126 len);
127 }
128 len = r2_mf_tx(&gen, amp, 1000, fwd, 0);
129 printf("Generated %d samples\n", len);
130 if (len > 0)
131 {
132 outframes = afWriteFrames(outhandle,
133 AF_DEFAULT_TRACK,
134 amp,
135 len);
136 }
137 }
138
139 if (afCloseFile(outhandle) != 0)
140 {
141 fprintf(stderr, " Cannot close wave file '%s'\n", OUTPUT_FILE_NAME);
142 exit (2);
143 }
144 afFreeFileSetup(filesetup);
145
146 return 0;
147 }
148 /*- End of function --------------------------------------------------------*/
149 /*- End of file ------------------------------------------------------------*/

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