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unixinput.c
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unixinput.c
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/*
* unixinput.c -- input sound samples
*
* Copyright (C) 1996
* Thomas Sailer (sailer@ife.ee.ethz.ch, hb9jnx@hb9w.che.eu)
*
* Copyright (C) 2012-2017
* Elias Oenal (multimon-ng@eliasoenal.com)
*
* 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.
*/
/* ---------------------------------------------------------------------- */
#include "multimon.h"
#include <stdio.h>
#include <stdarg.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#ifndef _MSC_VER
#include <unistd.h>
#endif
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include <getopt.h>
#ifdef SUN_AUDIO
#include <sys/audioio.h>
#include <stropts.h>
#include <sys/conf.h>
#elif PULSE_AUDIO
#include <pulse/simple.h>
#include <pulse/error.h>
#elif SDL_AUDIO
#include <SDL.h>
#elif WIN32_AUDIO
//see win32_soundin.c
#elif DUMMY_AUDIO
// NO AUDIO FOR OSX :/
#else /* SUN_AUDIO */
#include <sys/soundcard.h>
#include <sys/ioctl.h>
//#include <sys/wait.h>
#endif /* SUN_AUDIO */
#ifndef ONLY_RAW
#include <sys/wait.h>
#endif
/* ---------------------------------------------------------------------- */
static const char *allowed_types[] = {
"raw", "aiff", "au", "hcom", "sf", "voc", "cdr", "dat",
"smp", "wav", "maud", "vwe", "mp3", "mp4", "ogg", "flac", NULL
};
/* ---------------------------------------------------------------------- */
static const struct demod_param *dem[] = { ALL_DEMOD };
#define NUMDEMOD (sizeof(dem)/sizeof(dem[0]))
static struct demod_state dem_st[NUMDEMOD];
static unsigned int dem_mask[(NUMDEMOD+31)/32];
#define MASK_SET(n) dem_mask[(n)>>5] |= 1<<((n)&0x1f)
#define MASK_RESET(n) dem_mask[(n)>>5] &= ~(1<<((n)&0x1f))
#define MASK_ISSET(n) (dem_mask[(n)>>5] & 1<<((n)&0x1f))
/* ---------------------------------------------------------------------- */
static int verbose_level = 0;
static int repeatable_sox = 0;
static int mute_sox = 0;
static int integer_only = true;
static bool dont_flush = false;
static bool is_startline = true;
static int timestamp = 0;
static char *label = NULL;
extern int pocsag_mode;
extern int pocsag_invert_input;
extern int pocsag_error_correction;
extern int pocsag_show_partial_decodes;
extern int pocsag_heuristic_pruning;
extern int pocsag_prune_empty;
extern int aprs_mode;
extern int cw_dit_length;
extern int cw_gap_length;
extern int cw_threshold;
extern bool cw_disable_auto_threshold;
extern bool cw_disable_auto_timing;
void quit(void);
/* ---------------------------------------------------------------------- */
void _verbprintf(int verb_level, const char *fmt, ...)
{
char time_buf[20];
time_t t;
struct tm* tm_info;
if (verb_level > verbose_level)
return;
va_list args;
va_start(args, fmt);
if (is_startline)
{
if (label != NULL)
fprintf(stdout, "%s: ", label);
if (timestamp) {
t = time(NULL);
tm_info = localtime(&t);
strftime(time_buf, sizeof(time_buf), "%Y-%m-%d %H:%M:%S", tm_info);
fprintf(stdout, "%s: ", time_buf);
}
is_startline = false;
}
if (NULL != strchr(fmt,'\n')) /* detect end of line in stream */
is_startline = true;
vfprintf(stdout, fmt, args);
if(!dont_flush)
fflush(stdout);
va_end(args);
}
/* ---------------------------------------------------------------------- */
void process_buffer(float *float_buf, short *short_buf, unsigned int len)
{
for (int i = 0; (unsigned int) i < NUMDEMOD; i++)
if (MASK_ISSET(i) && dem[i]->demod)
{
buffer_t buffer = {short_buf, float_buf};
dem[i]->demod(dem_st+i, buffer, len);
}
}
/* ---------------------------------------------------------------------- */
#ifdef SUN_AUDIO
static void input_sound(unsigned int sample_rate, unsigned int overlap,
const char *ifname)
{
audio_info_t audioinfo;
audio_info_t audioinfo2;
audio_device_t audiodev;
int fd;
short buffer[8192];
float fbuf[16384];
unsigned int fbuf_cnt = 0;
int i;
short *sp;
if ((fd = open(ifname ? ifname : "/dev/audio", O_RDONLY)) < 0) {
perror("open");
exit (10);
}
if (ioctl(fd, AUDIO_GETDEV, &audiodev) == -1) {
perror("ioctl: AUDIO_GETDEV");
exit (10);
}
AUDIO_INITINFO(&audioinfo);
audioinfo.record.sample_rate = sample_rate;
audioinfo.record.channels = 1;
audioinfo.record.precision = 16;
audioinfo.record.encoding = AUDIO_ENCODING_LINEAR;
/*audioinfo.record.gain = 0x20;
audioinfo.record.port = AUDIO_LINE_IN;
audioinfo.monitor_gain = 0;*/
if (ioctl(fd, AUDIO_SETINFO, &audioinfo) == -1) {
perror("ioctl: AUDIO_SETINFO");
exit (10);
}
if (ioctl(fd, I_FLUSH, FLUSHR) == -1) {
perror("ioctl: I_FLUSH");
exit (10);
}
if (ioctl(fd, AUDIO_GETINFO, &audioinfo2) == -1) {
perror("ioctl: AUDIO_GETINFO");
exit (10);
}
fprintf(stdout, "Audio device: name %s, ver %s, config %s, "
"sampling rate %d\n", audiodev.name, audiodev.version,
audiodev.config, audioinfo.record.sample_rate);
for (;;) {
i = read(fd, sp = buffer, sizeof(buffer));
if (i < 0 && errno != EAGAIN) {
perror("read");
exit(4);
}
if (!i)
break;
if (i > 0) {
if(integer_only)
{
fbuf_cnt = i/sizeof(buffer[0]);
}
else
{
for (; i >= sizeof(buffer[0]); i -= sizeof(buffer[0]), sp++)
fbuf[fbuf_cnt++] = (*sp) * (1.0/32768.0);
if (i)
fprintf(stderr, "warning: noninteger number of samples read\n");
}
if (fbuf_cnt > overlap) {
process_buffer(fbuf, buffer, fbuf_cnt-overlap);
memmove(fbuf, fbuf+fbuf_cnt-overlap, overlap*sizeof(fbuf[0]));
fbuf_cnt = overlap;
}
}
}
close(fd);
}
#elif DUMMY_AUDIO
static void input_sound(unsigned int sample_rate, unsigned int overlap,
const char *ifname)
{
(void)sample_rate;
(void)overlap;
(void)ifname;
}
#elif WIN32_AUDIO
//Implemented in win32_soundin.c
void input_sound(unsigned int sample_rate, unsigned int overlap, const char *ifname);
#elif PULSE_AUDIO
static void input_sound(unsigned int sample_rate, unsigned int overlap,
const char *ifname)
{
short buffer[8192];
float fbuf[16384];
unsigned int fbuf_cnt = 0;
int i;
int error;
short *sp;
(void) ifname; // Suppress the warning.
// Init stuff from pa.org
pa_simple *s;
pa_sample_spec ss;
ss.format = PA_SAMPLE_S16NE;
ss.channels = 1;
ss.rate = sample_rate;
/* Create the recording stream */
if (!(s = pa_simple_new(NULL, "multimon-ng", PA_STREAM_RECORD, NULL, "record", &ss, NULL, NULL, &error))) {
fprintf(stderr, __FILE__": pa_simple_new() failed: %s\n", pa_strerror(error));
exit(4);
}
for (;;) {
i = pa_simple_read(s, sp = buffer, sizeof(buffer), &error);
if (i < 0 && errno != EAGAIN) {
perror("read");
fprintf(stderr, "error 1\n");
exit(4);
}
i=sizeof(buffer);
if (!i)
break;
if (i > 0) {
if(integer_only)
{
fbuf_cnt = i/sizeof(buffer[0]);
}
else
{
for (; (unsigned int) i >= sizeof(buffer[0]); i -= sizeof(buffer[0]), sp++)
fbuf[fbuf_cnt++] = (*sp) * (1.0/32768.0);
if (i)
fprintf(stderr, "warning: noninteger number of samples read\n");
}
if (fbuf_cnt > overlap) {
process_buffer(fbuf, buffer, fbuf_cnt-overlap);
memmove(fbuf, fbuf+fbuf_cnt-overlap, overlap*sizeof(fbuf[0]));
fbuf_cnt = overlap;
}
}
}
pa_simple_free(s);
}
#elif SDL_AUDIO
/* SDL Audio Recorder and Parser */
static void input_sound(unsigned int sample_rate, unsigned int overlap,
const char *ifname)
{
short buffer[8192];
float fbuf[16384];
unsigned int fbuf_cnt = 0;
int i;
int error;
short int sp;
(void) ifname;
if ((SDL_Init(SDL_INIT_VIDEO) < 0)) {
printf("SDL_Init Faled: SDL_INIT_AUDIO\n");
exit(-1);
}
SDL_AudioSpec wanted;
wanted.freq = 44100;
wanted.format = AUDIO_F32SYS;
wanted.channels = 2;
wanted.samples = 4096;
wanted.callback = NULL;
int ix, count = SDL_GetNumAudioDevices(SDL_TRUE);
for (ix = 1; ix <= count; ++ix) {
printf("Audio capture device %d: %s\n", ix, SDL_GetAudioDeviceName(ix - 1, 0));
}
SDL_AudioSpec spec;
SDL_AudioDeviceID devid_in = SDL_OpenAudioDevice(NULL, SDL_TRUE, &wanted, &wanted, 0);
if (devid_in == 0) { printf("SDL_Init failed: %s\n", SDL_GetError()); }
else { printf("SDL_Init: Using %d for device\n", devid_in); }
SDL_PauseAudioDevice(devid_in, 0);
while (true) {
Uint8 buf[4096];
const Uint32 br = SDL_DequeueAudio(devid_in, buf, sizeof(buf));
SDL_AudioCVT cvt;
SDL_BuildAudioCVT(&cvt, AUDIO_F32SYS, 2, 44100, AUDIO_S16LSB, 1, 22050);
SDL_assert(cvt.needed);
cvt.len = sizeof(buf);
cvt.buf = (Uint8*)SDL_malloc(cvt.len * cvt.len_mult);
for (int j = 0; j < sizeof(buf); j++)
cvt.buf[j] = buf[j];
SDL_ConvertAudio(&cvt);
float *fbuf = (float *)malloc(sizeof(float) * cvt.len_cvt);
for (int i = 0; i < cvt.len_cvt; i++)
fbuf[i] = cvt.buf[fbuf_cnt++] / 32768.0;
if (fbuf_cnt > overlap) {
process_buffer(fbuf, buffer, fbuf_cnt-overlap);
memmove(fbuf, fbuf+fbuf_cnt-overlap, overlap*sizeof(fbuf[0]));
fbuf_cnt = overlap;
}
}
}
#else /* SUN_AUDIO */
/* ---------------------------------------------------------------------- */
static void input_sound(unsigned int sample_rate, unsigned int overlap,
const char *ifname)
{
int sndparam;
int fd;
union {
short s[8192];
unsigned char b[8192];
} b;
float fbuf[16384];
unsigned int fbuf_cnt = 0;
int i;
short *sp;
unsigned char *bp;
int fmt = 0;
if ((fd = open(ifname ? ifname : "/dev/dsp", O_RDONLY)) < 0) {
perror("open");
exit (10);
}
sndparam = AFMT_S16_NE; /* we want 16 bits/sample signed */
if (ioctl(fd, SNDCTL_DSP_SETFMT, &sndparam) == -1) {
perror("ioctl: SNDCTL_DSP_SETFMT");
exit (10);
}
if (sndparam != AFMT_S16_NE) {
fmt = 1;
sndparam = AFMT_U8;
if (ioctl(fd, SNDCTL_DSP_SETFMT, &sndparam) == -1) {
perror("ioctl: SNDCTL_DSP_SETFMT");
exit (10);
}
if (sndparam != AFMT_U8) {
perror("ioctl: SNDCTL_DSP_SETFMT");
exit (10);
}
}
sndparam = 0; /* we want only 1 channel */
if (ioctl(fd, SNDCTL_DSP_STEREO, &sndparam) == -1) {
perror("ioctl: SNDCTL_DSP_STEREO");
exit (10);
}
if (sndparam != 0) {
fprintf(stderr, "soundif: Error, cannot set the channel "
"number to 1\n");
exit (10);
}
sndparam = sample_rate;
if (ioctl(fd, SNDCTL_DSP_SPEED, &sndparam) == -1) {
perror("ioctl: SNDCTL_DSP_SPEED");
exit (10);
}
if ((10*abs(sndparam-sample_rate)) > sample_rate) {
perror("ioctl: SNDCTL_DSP_SPEED");
exit (10);
}
if (sndparam != sample_rate) {
fprintf(stderr, "Warning: Sampling rate is %u, "
"requested %u\n", sndparam, sample_rate);
}
#if 0
sndparam = 4;
if (ioctl(fd, SOUND_PCM_SUBDIVIDE, &sndparam) == -1) {
perror("ioctl: SOUND_PCM_SUBDIVIDE");
}
if (sndparam != 4) {
perror("ioctl: SOUND_PCM_SUBDIVIDE");
}
#endif
for (;;) {
if (fmt) {
perror("ioctl: 8BIT SAMPLES NOT SUPPORTED!");
exit (10);
// i = read(fd, bp = b.b, sizeof(b.b));
// if (i < 0 && errno != EAGAIN) {
// perror("read");
// exit(4);
// }
// if (!i)
// break;
// if (i > 0) {
// for (; i >= sizeof(b.b[0]); i -= sizeof(b.b[0]), sp++)
// fbuf[fbuf_cnt++] = ((int)(*bp)-0x80) * (1.0/128.0);
// if (i)
// fprintf(stderr, "warning: noninteger number of samples read\n");
// if (fbuf_cnt > overlap) {
// process_buffer(fbuf, fbuf_cnt-overlap);
// memmove(fbuf, fbuf+fbuf_cnt-overlap, overlap*sizeof(fbuf[0]));
// fbuf_cnt = overlap;
// }
// }
} else {
i = read(fd, sp = b.s, sizeof(b.s));
if (i < 0 && errno != EAGAIN) {
perror("read");
exit(4);
}
if (!i)
break;
if (i > 0) {
if(integer_only)
{
fbuf_cnt = i/sizeof(b.s[0]);
}
else
{
for (; i >= sizeof(b.s[0]); i -= sizeof(b.s[0]), sp++)
fbuf[fbuf_cnt++] = (*sp) * (1.0/32768.0);
if (i)
fprintf(stderr, "warning: noninteger number of samples read\n");
}
if (fbuf_cnt > overlap) {
process_buffer(fbuf, b.s, fbuf_cnt-overlap);
memmove(fbuf, fbuf+fbuf_cnt-overlap, overlap*sizeof(fbuf[0]));
fbuf_cnt = overlap;
}
}
}
}
close(fd);
}
#endif /* SUN_AUDIO */
/* ---------------------------------------------------------------------- */
static void input_file(unsigned int sample_rate, unsigned int overlap,
const char *fname, const char *type)
{
struct stat statbuf;
int pipedes[2];
int pid = 0, soxstat;
int fd;
int i;
short buffer[8192];
float fbuf[16384];
unsigned int fbuf_cnt = 0;
short *sp;
/*
* if the input type is not raw, sox is started to convert the
* samples to the requested format
*/
if (!strcmp(fname, "-"))
{
// read from stdin and force raw input
fd = 0;
type = "raw";
}
else if (!type || !strcmp(type, "raw")) {
#ifdef WINDOWS
if ((fd = open(fname, O_RDONLY | O_BINARY)) < 0) {
#else
if ((fd = open(fname, O_RDONLY)) < 0) {
#endif
perror("open");
exit(10);
}
}
#ifndef ONLY_RAW
else {
if (stat(fname, &statbuf)) {
perror("stat");
exit(10);
}
if (pipe(pipedes)) {
perror("pipe");
exit(10);
}
if (!(pid = fork())) {
char srate[8];
/*
* child starts here... first set up filedescriptors,
* then start sox...
*/
sprintf(srate, "%d", sample_rate);
close(pipedes[0]); /* close reading pipe end */
close(1); /* close standard output */
if (dup2(pipedes[1], 1) < 0)
perror("dup2");
close(pipedes[1]); /* close writing pipe end */
execlp("sox", "sox", repeatable_sox?"-R":"-V2", mute_sox?"-V1":"-V2",
"-t", type, fname,
"-t", "raw", "-esigned-integer", "-b16", "-r", srate, "-", "remix", "1",
NULL);
perror("execlp");
exit(10);
}
if (pid < 0) {
perror("fork");
exit(10);
}
close(pipedes[1]); /* close writing pipe end */
fd = pipedes[0];
}
#endif
/*
* demodulate
*/
for (;;) {
i = read(fd, sp = buffer, sizeof(buffer));
if (i < 0 && errno != EAGAIN) {
perror("read");
exit(4);
}
if (!i)
break;
if (i > 0) {
if(integer_only)
{
fbuf_cnt = i/sizeof(buffer[0]);
}
else
{
for (; (unsigned int) i >= sizeof(buffer[0]); i -= sizeof(buffer[0]), sp++)
fbuf[fbuf_cnt++] = (*sp) * (1.0f/32768.0f);
if (i)
fprintf(stderr, "warning: noninteger number of samples read\n");
}
if (fbuf_cnt > overlap) {
process_buffer(fbuf, buffer, fbuf_cnt-overlap);
memmove(fbuf, fbuf+fbuf_cnt-overlap, overlap*sizeof(fbuf[0]));
fbuf_cnt = overlap;
}
}
}
close(fd);
#ifndef ONLY_RAW
waitpid(pid, &soxstat, 0);
#endif
}
void quit(void)
{
int i = 0;
for (i = 0; (unsigned int) i < NUMDEMOD; i++)
{
if(MASK_ISSET(i))
if (dem[i]->deinit)
dem[i]->deinit(dem_st+i);
}
}
/* ---------------------------------------------------------------------- */
static const char usage_str[] = "\n"
"Usage: %s [file] [file] [file] ...\n"
" If no [file] is given, input will be read from your default sound\n"
" hardware. A filename of \"-\" denotes standard input.\n"
" -t <type> : Input file type (any other type than raw requires sox)\n"
" -a <demod> : Add demodulator\n"
" -s <demod> : Subtract demodulator\n"
" -c : Remove all demodulators (must be added with -a <demod>)\n"
" -q : Quiet\n"
" -v <level> : Level of verbosity (e.g. '-v 3')\n"
" For POCSAG and MORSE_CW '-v1' prints decoding statistics.\n"
" -h : This help\n"
" -A : APRS mode (TNC2 text output)\n"
" -m : Mute SoX warnings\n"
" -r : Call SoX in repeatable mode (e.g. fixed random seed for dithering)\n"
" -n : Don't flush stdout, increases performance.\n"
" -e : POCSAG: Hide empty messages.\n"
" -u : POCSAG: Heuristically prune unlikely decodes.\n"
" -i : POCSAG: Inverts the input samples. Try this if decoding fails.\n"
" -p : POCSAG: Show partially received messages.\n"
" -f <mode> : POCSAG: Disables auto-detection and forces decoding of data as <mode>\n"
" (<mode> can be 'numeric', 'alpha' and 'skyper')\n"
" -b <level> : POCSAG: BCH bit error correction level. Set 0 to disable, default is 2.\n"
" Lower levels increase performance and lower false positives.\n"
" -o : CW: Set threshold for dit detection (default: 500)\n"
" -d : CW: Dit length in ms (default: 50)\n"
" -g : CW: Gap length in ms (default: 50)\n"
" -x : CW: Disable auto threshold detection\n"
" -y : CW: Disable auto timing detection\n"
" --timestamp: Add a time stamp in front of every printed line\n"
" --label : Add a label to the front of every printed line\n"
" Raw input requires one channel, 16 bit, signed integer (platform-native)\n"
" samples at the demodulator's input sampling rate, which is\n"
" usually 22050 Hz. Raw input is assumed and required if piped input is used.\n";
void main(int argc, char* argv[])
{
int c;
int errflg = 0;
int quietflg = 0;
int i;
char **itype;
int mask_first = 1;
int sample_rate = -1;
unsigned int overlap = 0;
char *input_type = "hw";
static struct option long_options[] =
{
{"timestamp", no_argument, ×tamp, 1},
{"label", required_argument, NULL, 'l'},
{0, 0, 0, 0}
};
while ((c = getopt_long(argc, argv, "t:a:s:v:b:f:g:d:o:cqhAmrxynipeu", long_options, NULL)) != EOF) {
switch (c) {
case 'h':
case '?':
errflg++;
break;
case 'q':
quietflg++;
break;
case 'A':
aprs_mode = 1;
memset(dem_mask, 0, sizeof(dem_mask));
mask_first = 0;
for (i = 0; (unsigned int) i < NUMDEMOD; i++)
if (!strcasecmp("AFSK1200", dem[i]->name)) {
MASK_SET(i);
break;
}
break;
case 'v':
verbose_level = strtoul(optarg, 0, 0);
break;
case 'b':
pocsag_error_correction = strtoul(optarg, 0, 0);
if(pocsag_error_correction > 2 || pocsag_error_correction < 0)
{
fprintf(stderr, "Invalid error correction value!\n");
pocsag_error_correction = 2;
}
break;
case'p':
pocsag_show_partial_decodes = 1;
break;
case'u':
pocsag_heuristic_pruning = 1;
break;
case'e':
pocsag_prune_empty = 1;
break;
case 'm':
mute_sox = 1;
break;
case 'r':
repeatable_sox = 1;
break;
case 't':
for (itype = (char **)allowed_types; *itype; itype++)
if (!strcmp(*itype, optarg)) {
input_type = *itype;
goto intypefound;
}
fprintf(stderr, "invalid input type \"%s\"\n"
"allowed types: ", optarg);
for (itype = (char **)allowed_types; *itype; itype++)
fprintf(stderr, "%s ", *itype);
fprintf(stderr, "\n");
errflg++;
intypefound:
break;
case 'a':
if (mask_first)
memset(dem_mask, 0, sizeof(dem_mask));
mask_first = 0;
for (i = 0; (unsigned int) i < NUMDEMOD; i++)
if (!strcasecmp(optarg, dem[i]->name)) {
MASK_SET(i);
break;
}
if ((unsigned int) i >= NUMDEMOD) {
fprintf(stderr, "invalid mode \"%s\"\n", optarg);
errflg++;
}
break;
case 's':
if (mask_first)
memset(dem_mask, 0xff, sizeof(dem_mask));
mask_first = 0;
for (i = 0; (unsigned int) i < NUMDEMOD; i++)
if (!strcasecmp(optarg, dem[i]->name)) {
MASK_RESET(i);
break;
}
if ((unsigned int) i >= NUMDEMOD) {
fprintf(stderr, "invalid mode \"%s\"\n", optarg);
errflg++;
}
break;
case 'c':
if (mask_first)
memset(dem_mask, 0xff, sizeof(dem_mask));
mask_first = 0;
for (i = 0; (unsigned int) i < NUMDEMOD; i++)
MASK_RESET(i);
break;
case 'f':
if(!pocsag_mode)
{
if(!strncmp("numeric",optarg, sizeof("numeric")))
pocsag_mode = POCSAG_MODE_NUMERIC;
else if(!strncmp("alpha",optarg, sizeof("alpha")))
pocsag_mode = POCSAG_MODE_ALPHA;
else if(!strncmp("skyper",optarg, sizeof("skyper")))
pocsag_mode = POCSAG_MODE_SKYPER;
}else fprintf(stderr, "a POCSAG mode has already been selected!\n");
break;
case 'n':
dont_flush = true;
break;
case 'i':
pocsag_invert_input = true;
break;
case 'd':
{
int i = 0;
sscanf(optarg, "%d", &i);
if(i) cw_dit_length = abs(i);
break;
}
case 'g':
{
int i = 0;
sscanf(optarg, "%d", &i);
if(i) cw_gap_length = abs(i);
break;
}
case 'o':
{
int i = 0;
sscanf(optarg, "%d", &i);
if(i) cw_threshold = abs(i);
break;
}
case 'x':
cw_disable_auto_threshold = true;
break;
case 'y':
cw_disable_auto_timing = true;
break;
case 'l':
label = optarg;
break;
}
}
if ( !quietflg )
{ // pay heed to the quietflg
fprintf(stderr, "multimon-ng 1.1.3\n"
" (C) 1996/1997 by Tom Sailer HB9JNX/AE4WA\n"
" (C) 2012-2017 by Elias Oenal\n"
"Available demodulators:");
for (i = 0; (unsigned int) i < NUMDEMOD; i++) {
fprintf(stderr, " %s", dem[i]->name);
}
fprintf(stderr, "\n");
}
if (errflg) {
(void)fprintf(stderr, usage_str, argv[0]);
exit(2);
}
if (mask_first)
memset(dem_mask, 0xff, sizeof(dem_mask));
if (!quietflg)
fprintf(stdout, "Enabled demodulators:");
for (i = 0; (unsigned int) i < NUMDEMOD; i++)
if (MASK_ISSET(i)) {
if (!quietflg)
fprintf(stdout, " %s", dem[i]->name); //Print demod name
if(dem[i]->float_samples) integer_only = false; //Enable float samples on demand
memset(dem_st+i, 0, sizeof(dem_st[i]));
dem_st[i].dem_par = dem[i];
if (dem[i]->init)
dem[i]->init(dem_st+i);
if (sample_rate == -1)
sample_rate = dem[i]->samplerate;
else if ( (unsigned int) sample_rate != dem[i]->samplerate) {
if (!quietflg)
fprintf(stdout, "\n");
fprintf(stderr, "Error: Current sampling rate %d, "
" demodulator \"%s\" requires %d\n",
sample_rate, dem[i]->name, dem[i]->samplerate);
exit(3);
}
if (dem[i]->overlap > overlap)
overlap = dem[i]->overlap;
}
if (!quietflg)
fprintf(stdout, "\n");
if (optind < argc && !strcmp(argv[optind], "-"))
{
input_type = "raw";
}
if (!strcmp(input_type, "hw")) {
if ((argc - optind) >= 1)
input_sound(sample_rate, overlap, argv[optind]);
else
input_sound(sample_rate, overlap, NULL);
quit();
exit(0);
}
if ((argc - optind) < 1) {
(void)fprintf(stderr, "no source files specified\n");
exit(4);
}
for (i = optind; i < argc; i++)
input_file(sample_rate, overlap, argv[i], input_type);
quit();
exit(0);
}
/* ---------------------------------------------------------------------- */