348 lines
9.1 KiB
C
348 lines
9.1 KiB
C
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/*
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* main.cpp -- AIS Decoder
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*
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* Copyright (C) 2013
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* Astra Paging Ltd / AISHub (info@aishub.net)
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*
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* AISDecoder is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* AISDecoder uses parts of GNUAIS project (http://gnuais.sourceforge.net/)
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*
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*/
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#ifndef WIN32
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#include <netdb.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#else
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#endif
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#include <getopt.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <stdio.h>
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#include "config.h"
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#include "sounddecoder.h"
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#include "callbacks.h"
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#ifdef HAVE_ALSA
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#include "alsaaudio/alsaaudio.h"
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#endif
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#ifndef WIN32
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#ifdef HAVE_ALSA
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#define HELP_AUDIO_DEVICE "-D\tALSA input device\n\tUse '-D list' to see all available system devices.\n"
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#else
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#define HELP_AUDIO_DEVICE ""
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#endif
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#ifdef HAVE_PULSEAUDIO
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#ifdef HAVE_ALSA
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#define HELP_AUDIO_DRIVERS "pulse,alsa,file"
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#else
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#define HELP_AUDIO_DRIVERS "pulse,file"
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#endif
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#else
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#ifdef HAVE_ALSA
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#define HELP_AUDIO_DRIVERS "alsa,file"
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#endif
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#endif
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#else
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#define HELP_AUDIO_DRIVERS "winmm,file"
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#define HELP_AUDIO_DEVICE "-D\tNumeric value for input device (default WAVE_MAPPER)\n\tUse '-D list' to see all available system devices.\n"
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#endif
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#define HELP_MSG \
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"Usage: " PROJECT_NAME " -h hostname -p port -a " HELP_AUDIO_DRIVERS " [-f /path/file.raw] [-l]\n\n"\
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"-h\tDestination host or IP address\n"\
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"-p\tDestination UDP port\n"\
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"-a\tAudio driver [" HELP_AUDIO_DRIVERS "]\n" HELP_AUDIO_DEVICE\
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"-c\tSound channels [stereo,mono,left,right] (default stereo)\n"\
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"-f\tFull path to 48kHz raw audio file\n"\
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"-l\tLog sound levels to console (stderr)\n"\
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"-d\tLog NMEA sentences to console (stderr)\n"\
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"-H\tDisplay this help\n"
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#define MAX_BUFFER_LENGTH 2048
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static char buffer[MAX_BUFFER_LENGTH];
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static unsigned int buffer_count=0;
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#ifdef WIN32
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WSADATA wsaData;
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void printInDevices() {
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unsigned int count = waveInGetNumDevs();
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WAVEINCAPS caps;
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unsigned int i = 0;
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for (i = 0; i < count; i++) {
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if (waveInGetDevCaps(i, &caps, sizeof(caps)) == MMSYSERR_NOERROR) {
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fprintf(stderr, "%u: %s\r\n", i, caps.szPname);
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} else {
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fprintf(stderr, "Can't read devices\r\n");
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exit(EXIT_FAILURE);
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}
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}
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}
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#endif
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#ifdef HAVE_ALSA
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void printInDevices() {
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char **hints;
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/* Enumerate sound devices */
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int err = snd_device_name_hint(0, "pcm", (void***)&hints);
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if (err != 0) {
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fprintf(stderr, "Can't read data\n");
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exit(EXIT_FAILURE);
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}
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char** n = hints;
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while (*n != NULL) {
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char *name = snd_device_name_get_hint(*n, "NAME");
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char *desc = snd_device_name_get_hint(*n, "DESC");
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char *type = snd_device_name_get_hint(*n, "IOID");
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if (name != NULL && desc != NULL) {
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if (type == NULL || !strcmp(type, "Input")) {
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printf("%s\n%s: <%s>\n\n", desc, type == NULL ? "Input/Output" : "Input",name);
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}
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}
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if (name != NULL) free(name);
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if (name != NULL) free(desc);
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if (name != NULL) free(type);
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n++;
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}
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//Free hint buffer too
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snd_device_name_free_hint((void**)hints);
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snd_config_update_free_global();
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}
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#endif
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static int sock;
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static struct addrinfo* addr=NULL;
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static int initSocket(const char *host, const char *portname);
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static int show_levels=0;
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static int debug_nmea=0;
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void sound_level_changed(float level, int channel, unsigned char high) {
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if (high != 0)
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fprintf(stderr, "Level on ch %d too high: %.0f %%\n", channel, level);
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else
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fprintf(stderr, "Level on ch %d: %.0f %%\n", channel, level);
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}
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void nmea_sentence_received(const char *sentence,
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unsigned int length,
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unsigned char sentences,
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unsigned char sentencenum) {
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if (sentences == 1) {
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if (sendto(sock, sentence, length, 0, addr->ai_addr, addr->ai_addrlen) == -1) abort();
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if (debug_nmea) fprintf(stderr, "%s", sentence);
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} else {
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if (buffer_count + length < MAX_BUFFER_LENGTH) {
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memcpy(&buffer[buffer_count], sentence, length);
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buffer_count += length;
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} else {
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buffer_count=0;
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}
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if (sentences == sentencenum && buffer_count > 0) {
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if (sendto(sock, buffer, buffer_count, 0, addr->ai_addr, addr->ai_addrlen) == -1) abort();
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if (debug_nmea) fprintf(stderr, "%s", buffer);
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buffer_count=0;
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};
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}
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}
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#define CMD_PARAMS_COMMON "h:p:a:lHf:dc:"
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#ifndef WIN32
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#ifdef HAVE_ALSA
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#define CMD_PARAMS CMD_PARAMS_COMMON "D:"
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#else
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#define CMD_PARAMS CMD_PARAMS_COMMON
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#endif
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#else
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#define CMD_PARAMS CMD_PARAMS_COMMON "D:"
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#endif
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int main(int argc, char *argv[]) {
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Sound_Channels channels = SOUND_CHANNELS_STEREO;
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char *host, *port, *file_name=NULL;
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const char *params=CMD_PARAMS;
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int alsa=0, pulse=0, file=0, winmm=0;
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int hfnd=0, pfnd=0, afnd=0;
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#ifdef WIN32
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unsigned int deviceId=WAVE_MAPPER;
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#endif
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#ifdef HAVE_ALSA
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char *alsaDevice=NULL;
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#endif
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int opt;
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while ((opt = getopt(argc, argv, params)) != -1) {
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switch (opt) {
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case 'h':
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host = optarg;
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hfnd = 1;
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break;
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case 'p':
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port = optarg;
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pfnd = 1;
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break;
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case 'a':
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#ifdef HAVE_PULSEAUDIO
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pulse = strcmp(optarg, "pulse") == 0;
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#endif
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#ifdef HAVE_ALSA
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alsa = strcmp(optarg, "alsa") == 0;
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#endif
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#ifdef WIN32
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winmm = strcmp(optarg, "winmm") == 0;
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#endif
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file = strcmp(optarg, "file") == 0;
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afnd = 1;
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break;
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case 'c':
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if (!strcmp(optarg, "mono")) channels = SOUND_CHANNELS_MONO;
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else if (!strcmp(optarg, "left")) channels = SOUND_CHANNELS_LEFT;
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else if (!strcmp(optarg, "right")) channels = SOUND_CHANNELS_RIGHT;
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break;
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case 'l':
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show_levels = 1;
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break;
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case 'f':
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file_name = optarg;
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break;
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case 'd':
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debug_nmea = 1;
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break;
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#ifdef WIN32
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case 'D':
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if (!strcmp(optarg, "list")) {
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printInDevices();
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return EXIT_SUCCESS;
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} else {
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deviceId = atoi(optarg);
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}
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break;
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#endif
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#ifdef HAVE_ALSA
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case 'D':
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if (!strcmp(optarg, "list")) {
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printInDevices();
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return EXIT_SUCCESS;
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} else {
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alsaDevice = optarg;
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}
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break;
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#endif
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case 'H':
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default:
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fprintf(stderr, HELP_MSG);
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return EXIT_SUCCESS;
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break;
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}
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}
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if (argc < 2) {
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fprintf(stderr, HELP_MSG);
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return EXIT_FAILURE;
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}
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if (!hfnd) {
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fprintf(stderr, "Host is not set\n");
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return EXIT_FAILURE;
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}
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if (!pfnd) {
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fprintf(stderr, "Port is not set\n");
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return EXIT_FAILURE;
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}
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if (!afnd) {
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fprintf(stderr, "Audio driver is not set\n");
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return EXIT_FAILURE;
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}
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if (!alsa && !pulse && !winmm && !file) {
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fprintf(stderr, "Invalid audio driver\n");
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return EXIT_FAILURE;
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}
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if (!initSocket(host, port)) {
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return EXIT_FAILURE;
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}
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if (show_levels) on_sound_level_changed=sound_level_changed;
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on_nmea_sentence_received=nmea_sentence_received;
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Sound_Driver driver = DRIVER_FILE;
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#ifdef HAVE_ALSA
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if (alsa) driver = DRIVER_ALSA;
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#endif
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#ifdef HAVE_PULSEAUDIO
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if (pulse) driver = DRIVER_PULSE;
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#endif
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int OK=0;
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#ifdef WIN32
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if (!file) driver = DRIVER_WINMM;
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OK=initSoundDecoder(channels, driver, file_name, deviceId);
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#else
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#ifdef HAVE_ALSA
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OK=initSoundDecoder(channels, driver, file_name, alsaDevice);
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#else
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OK=initSoundDecoder(channels, driver, file_name);
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#endif
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#endif
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int stop=0;
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if (OK) {
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runSoundDecoder(&stop);
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} else {
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fprintf(stderr, "%s\n", errorSoundDecoder);
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}
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freeSoundDecoder();
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freeaddrinfo(addr);
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#ifdef WIN32
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WSACleanup();
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#endif
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return 0;
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}
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int initSocket(const char *host, const char *portname) {
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struct addrinfo hints;
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memset(&hints, 0, sizeof(hints));
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hints.ai_family=AF_UNSPEC;
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hints.ai_socktype=SOCK_DGRAM;
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hints.ai_protocol=IPPROTO_UDP;
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#ifndef WIN32
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hints.ai_flags=AI_ADDRCONFIG;
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#else
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int iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
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if (iResult != 0) {
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printf("WSAStartup failed: %d\n", iResult);
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return 0;
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}
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#endif
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int err=getaddrinfo(host, portname, &hints, &addr);
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if (err!=0) {
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fprintf(stderr, "Failed to resolve remote socket address!\n");
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#ifdef WIN32
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WSACleanup();
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#endif
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return 0;
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}
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sock=socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol);
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if (sock==-1) {
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fprintf(stderr, "%s",strerror(errno));
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#ifdef WIN32
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WSACleanup();
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#endif
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return 0;
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}
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return 1;
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}
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