williamp/osmocom-analog
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Add function to display wave form from input/loop

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Use 'w' to toggle display.

Move terminal input processing and main loop to main_common.c
This commit is contained in:
Andreas Eversberg
2016-06-17 07:28:45 +02:00
parent 4e0e13cb2d
commit 7d5d3da8d3
9 changed files with 223 additions and 101 deletions
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86
src/common/main_common.c
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@@ -23,10 +23,14 @@
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>
#include <math.h>
#include <termios.h>
#include "main.h"
#include "debug.h"
#include "../common/sender.h"
#include "sender.h"
#include "timer.h"
#include "call.h"
/* common settings */
int num_kanal = 0;
@@ -241,3 +245,83 @@ void sighandler(int sigset)
quit = 1;
}
static int get_char()
{
struct timeval tv = {0, 0};
fd_set fds;
char c = 0;
int __attribute__((__unused__)) rc;
FD_ZERO(&fds);
FD_SET(0, &fds);
select(0+1, &fds, NULL, NULL, &tv);
if (FD_ISSET(0, &fds)) {
rc = read(0, &c, 1);
return c;
} else
return -1;
}
/* Loop through all transceiver instances of one network. */
void main_loop(int *quit, int latency)
{
int latspl;
sender_t *sender;
double last_time = 0, now;
struct termios term, term_orig;
int c;
/* prepare terminal */
tcgetattr(0, &term_orig);
term = term_orig;
term.c_lflag &= ~(ISIG|ICANON|ECHO);
term.c_cc[VMIN]=1;
term.c_cc[VTIME]=2;
tcsetattr(0, TCSANOW, &term);
while(!(*quit)) {
/* process sound of all transceivers */
for (sender = sender_head; sender; sender = sender->next) {
/* do not process audio for an audio slave, since it is done by audio master */
if (sender->master) /* if master is set, we are an audio slave */
continue;
latspl = sender->samplerate * latency / 1000;
process_sender_audio(sender, quit, latspl);
}
/* process timers */
process_timer();
/* process audio for mncc call instances */
now = get_time();
if (now - last_time >= 0.1)
last_time = now;
if (now - last_time >= 0.020) {
last_time += 0.020;
/* call clock every 20ms */
call_mncc_clock();
}
c = get_char();
switch (c) {
case 3:
/* quit */
*quit = 1;
break;
case 'w':
/* toggle display */
display_wave_on(-1);
break;
default:
/* process audio of built-in call control */
process_call(c);
}
/* sleep a while */
usleep(1000);
}
/* reset terminal */
tcsetattr(0, TCSANOW, &term_orig);
}