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
|
/***
This file is part of PulseAudio.
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio 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 Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <pulsecore/time-smoother.h>
#include <pulse/timeval.h>
int main(int argc, char*argv[]) {
pa_usec_t x;
unsigned u = 0;
pa_smoother *s;
int m;
/* unsigned msec[] = { */
/* 200, 200, */
/* 300, 320, */
/* 400, 400, */
/* 500, 480, */
/* 0, 0 */
/* }; */
int msec[200];
srand(0);
for (m = 0, u = 0; u < PA_ELEMENTSOF(msec); u+= 2) {
msec[u] = m+1 + (rand() % 100) - 50;
msec[u+1] = m + (rand() % 2000) - 1000;
m += rand() % 100;
if (msec[u] < 0)
msec[u] = 0;
if (msec[u+1] < 0)
msec[u+1] = 0;
}
s = pa_smoother_new(700*PA_USEC_PER_MSEC, 2000*PA_USEC_PER_MSEC, TRUE, 6);
for (x = 0, u = 0; x < PA_USEC_PER_SEC * 10; x += PA_USEC_PER_MSEC) {
while (u < PA_ELEMENTSOF(msec) && (pa_usec_t) msec[u]*PA_USEC_PER_MSEC < x) {
pa_smoother_put(s, (pa_usec_t) msec[u] * PA_USEC_PER_MSEC, (pa_usec_t) msec[u+1] * PA_USEC_PER_MSEC);
printf("%i\t\t%i\n", msec[u], msec[u+1]);
u += 2;
}
printf("%llu\t%llu\n", (unsigned long long) (x/PA_USEC_PER_MSEC), (unsigned long long) (pa_smoother_get(s, x)/PA_USEC_PER_MSEC));
}
pa_smoother_free(s);
return 0;
}
|
