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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
/*
* SpanDSP - a series of DSP components for telephony
*
* echo_monitor.cpp - Display echo canceller status, using the FLTK toolkit.
*
* Written by Steve Underwood <steveu@coppice.org>
*
* Copyright (C) 2004 Steve Underwood
*
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id: echo_monitor.cpp,v 1.1 2004/12/16 15:33:55 steveu Exp $
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#if defined(HAVE_FL_FL_H) && defined(HAVE_FL_FL_CARTESIAN_H)
#include <stdint.h>
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/select.h>
#include <FL/Fl.H>
#include <FL/Fl_Overlay_Window.H>
#include <FL/Fl_Light_Button.H>
#include <Fl/Fl_Cartesian.H>
#include <FL/fl_draw.H>
#include "../src/spandsp/complex.h"
//#include "spandsp.h"
#include "echo_monitor.h"
Fl_Double_Window *w;
Fl_Group *c_right;
Fl_Group *c_eq;
Ca_Canvas *canvas_eq;
Ca_X_Axis *eq_x;
Ca_Y_Axis *eq_y;
Ca_Line *eq_re = NULL;
double eq_re_plot[512];
static int skip = 0;
int echo_can_monitor_update(const int16_t *coeffs, int len)
{
int i;
float min;
float max;
if (eq_re)
delete eq_re;
canvas_eq->current(canvas_eq);
i = 0;
min = coeffs[i];
max = coeffs[i];
for (i = 0; i < len; i++)
{
eq_re_plot[2*i] = i;
eq_re_plot[2*i + 1] = coeffs[i];
if (min > coeffs[i])
min = coeffs[i];
if (max < coeffs[i])
max = coeffs[i];
}
eq_y->maximum((max == min) ? max + 0.2 : max);
eq_y->minimum(min);
eq_re = new Ca_Line(len, eq_re_plot, 0, 0, FL_BLUE, CA_NO_POINT);
if (++skip >= 100)
{
skip = 0;
Fl::check();
}
return 0;
}
int start_echo_can_monitor(int len)
{
char buf[132 + 1];
float x;
float y;
w = new Fl_Double_Window(905, 400, "Echo canceller monitor");
c_right = new Fl_Group(440, 0, 465, 405);
c_eq = new Fl_Group(380, 0, 415, 200);
c_eq->box(FL_DOWN_BOX);
c_eq->align(FL_ALIGN_TOP | FL_ALIGN_INSIDE);
c_eq->current();
canvas_eq = new Ca_Canvas(460, 35, 300, 100, "FIR coeffs");
canvas_eq->box(FL_PLASTIC_DOWN_BOX);
canvas_eq->color(7);
canvas_eq->align(FL_ALIGN_TOP);
Fl_Group::current()->resizable(canvas_eq);
canvas_eq->border(15);
eq_x = new Ca_X_Axis(465, 135, 290, 30, "Tap");
eq_x->align(FL_ALIGN_BOTTOM);
eq_x->minimum(0.0);
eq_x->maximum((float) len);
eq_x->label_format("%g");
eq_x->minor_grid_color(fl_gray_ramp(20));
eq_x->major_grid_color(fl_gray_ramp(15));
eq_x->label_grid_color(fl_gray_ramp(10));
eq_x->grid_visible(CA_LABEL_GRID | CA_ALWAYS_VISIBLE);
eq_x->minor_grid_style(FL_DOT);
eq_x->major_step(5);
eq_x->label_step(1);
eq_x->axis_align(CA_BOTTOM | CA_LINE);
eq_x->axis_color(FL_BLACK);
eq_x->current();
eq_y = new Ca_Y_Axis(420, 40, 40, 90, "Amp");
eq_y->align(FL_ALIGN_LEFT);
eq_y->minimum(-0.1);
eq_y->maximum(0.1);
eq_y->minor_grid_color(fl_gray_ramp(20));
eq_y->major_grid_color(fl_gray_ramp(15));
eq_y->label_grid_color(fl_gray_ramp(10));
eq_y->grid_visible(CA_LABEL_GRID | CA_ALWAYS_VISIBLE);
eq_y->minor_grid_style(FL_DOT);
eq_y->major_step(5);
eq_y->label_step(1);
eq_y->axis_color(FL_BLACK);
eq_y->current();
c_eq->end();
c_right->end();
Fl_Group::current()->resizable(c_right);
w->end();
w->show();
Fl::check();
return 0;
}
void echo_can_monitor_wait_to_end(void)
{
fd_set rfds;
int res;
struct timeval tv;
fprintf(stderr, "Processing complete. Press the <enter> key to end\n");
do
{
usleep(100000);
Fl::check();
FD_ZERO(&rfds);
FD_SET(0, &rfds);
tv.tv_usec = 100000;
tv.tv_sec = 0;
res = select(1, &rfds, NULL, NULL, &tv);
}
while (res <= 0);
}
#endif
|
