371 lines
11 KiB
C++
371 lines
11 KiB
C++
//
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// ZoneMinder Capture Daemon, $Date$, $Revision$
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// Copyright (C) 2001-2008 Philip Coombes
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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/*
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=head1 NAME
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zmc - The ZoneMinder Capture daemon
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=head1 SYNOPSIS
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zmc -d <device_path>
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zmc --device <device_path>
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zmc -f <file_path>
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zmc --file <file_path>
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zmc -m <monitor_id>
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zmc --monitor <monitor_id>
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zmc -h
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zmc --help
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zmc -v
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zmc --version
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=head1 DESCRIPTION
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This binary's job is to sit on a video device and suck frames off it as fast as
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possible, this should run at more or less constant speed.
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=head1 OPTIONS
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-d, --device <device_path> - For local cameras, device to access. e.g /dev/video0 etc
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-f, --file <file_path> - For local images, jpg file to access.
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-m, --monitor_id - ID of the monitor to analyse
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-h, --help - Display usage information
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-v, --version - Print the installed version of ZoneMinder
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=cut
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*/
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#include <getopt.h>
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#include <signal.h>
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#if defined(__FreeBSD__)
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#include <limits.h>
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#else
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#include <values.h>
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#endif
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#if !defined(MAXINT)
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#define MAXINT INT_MAX
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#endif
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#include "zm.h"
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#include "zm_db.h"
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#include "zm_time.h"
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#include "zm_signal.h"
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#include "zm_monitor.h"
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void Usage() {
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fprintf(stderr, "zmc -d <device_path> or -r <proto> -H <host> -P <port> -p <path> or -f <file_path> or -m <monitor_id>\n");
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fprintf(stderr, "Options:\n");
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#if defined(BSD)
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fprintf(stderr, " -d, --device <device_path> : For local cameras, device to access. E.g /dev/bktr0 etc\n");
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#else
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fprintf(stderr, " -d, --device <device_path> : For local cameras, device to access. E.g /dev/video0 etc\n");
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#endif
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fprintf(stderr, " -f, --file <file_path> : For local images, jpg file to access.\n");
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fprintf(stderr, " -m, --monitor <monitor_id> : For sources associated with a single monitor\n");
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fprintf(stderr, " -h, --help : This screen\n");
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fprintf(stderr, " -v, --version : Report the installed version of ZoneMinder\n");
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exit(0);
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}
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int main(int argc, char *argv[]) {
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self = argv[0];
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srand(getpid() * time(0));
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const char *device = "";
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const char *protocol = "";
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const char *host = "";
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const char *port = "";
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const char *path = "";
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const char *file = "";
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int monitor_id = -1;
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static struct option long_options[] = {
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{"device", 1, 0, 'd'},
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{"protocol", 1, 0, 'r'},
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{"host", 1, 0, 'H'},
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{"port", 1, 0, 'P'},
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{"path", 1, 0, 'p'},
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{"file", 1, 0, 'f'},
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{"monitor", 1, 0, 'm'},
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{"help", 0, 0, 'h'},
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{"version", 0, 0, 'v'},
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{0, 0, 0, 0}
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};
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while (1) {
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int option_index = 0;
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int c = getopt_long(argc, argv, "d:H:P:p:f:m:h:v", long_options, &option_index);
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if ( c == -1 ) {
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break;
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}
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switch (c) {
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case 'd':
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device = optarg;
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break;
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case 'H':
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host = optarg;
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break;
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case 'P':
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port = optarg;
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break;
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case 'p':
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path = optarg;
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break;
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case 'f':
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file = optarg;
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break;
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case 'm':
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monitor_id = atoi(optarg);
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break;
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case 'h':
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case '?':
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Usage();
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break;
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case 'v':
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std::cout << ZM_VERSION << "\n";
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exit(0);
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default:
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// fprintf(stderr, "?? getopt returned character code 0%o ??\n", c);
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break;
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}
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}
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if ( optind < argc ) {
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fprintf(stderr, "Extraneous options, ");
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while ( optind < argc )
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printf("%s ", argv[optind++]);
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printf("\n");
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Usage();
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}
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int modes = ( (device[0]?1:0) + (host[0]?1:0) + (file[0]?1:0) + (monitor_id > 0 ? 1 : 0) );
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if ( modes > 1 ) {
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fprintf(stderr, "Only one of device, host/port/path, file or monitor id allowed\n");
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Usage();
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exit(0);
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}
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if ( modes < 1 ) {
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fprintf(stderr, "One of device, host/port/path, file or monitor id must be specified\n");
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Usage();
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exit(0);
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}
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char log_id_string[32] = "";
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if ( device[0] ) {
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const char *slash_ptr = strrchr(device, '/');
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snprintf(log_id_string, sizeof(log_id_string), "zmc_d%s", slash_ptr?slash_ptr+1:device);
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} else if ( host[0] ) {
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snprintf(log_id_string, sizeof(log_id_string), "zmc_h%s", host);
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} else if ( file[0] ) {
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const char *slash_ptr = strrchr(file, '/');
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snprintf(log_id_string, sizeof(log_id_string), "zmc_f%s", slash_ptr?slash_ptr+1:file);
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} else {
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snprintf(log_id_string, sizeof(log_id_string), "zmc_m%d", monitor_id);
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}
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zmLoadConfig();
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logInit(log_id_string);
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hwcaps_detect();
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Monitor **monitors = 0;
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int n_monitors = 0;
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#if ZM_HAS_V4L
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if ( device[0] ) {
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n_monitors = Monitor::LoadLocalMonitors(device, monitors, Monitor::CAPTURE);
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} else
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#endif // ZM_HAS_V4L
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if ( host[0] ) {
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if ( !port )
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port = "80";
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n_monitors = Monitor::LoadRemoteMonitors(protocol, host, port, path, monitors, Monitor::CAPTURE);
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} else if ( file[0] ) {
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n_monitors = Monitor::LoadFileMonitors(file, monitors, Monitor::CAPTURE);
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} else {
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Monitor *monitor = Monitor::Load(monitor_id, true, Monitor::CAPTURE);
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if ( monitor ) {
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monitors = new Monitor *[1];
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monitors[0] = monitor;
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n_monitors = 1;
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}
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}
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if ( !n_monitors ) {
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Error("No monitors found");
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exit(-1);
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}
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Info("Starting Capture version %s", ZM_VERSION);
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zmSetDefaultHupHandler();
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zmSetDefaultTermHandler();
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zmSetDefaultDieHandler();
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sigset_t block_set;
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sigemptyset(&block_set);
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sigaddset(&block_set, SIGHUP);
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sigaddset(&block_set, SIGUSR1);
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sigaddset(&block_set, SIGUSR2);
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int result = 0;
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while ( !zm_terminate ) {
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result = 0;
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static char sql[ZM_SQL_SML_BUFSIZ];
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for ( int i = 0; i < n_monitors; i++ ) {
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time_t now = (time_t)time(NULL);
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monitors[i]->setStartupTime(now);
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snprintf(sql, sizeof(sql),
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"REPLACE INTO Monitor_Status (MonitorId, Status) VALUES ('%d','Running')",
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monitors[i]->Id());
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if ( mysql_query(&dbconn, sql) ) {
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Error("Can't run query: %s", mysql_error(&dbconn));
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}
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}
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// Outer primary loop, handles connection to camera
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if ( monitors[0]->PrimeCapture() < 0 ) {
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Error("Failed to prime capture of initial monitor");
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sleep(10);
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continue;
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}
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for ( int i = 0; i < n_monitors; i++ ) {
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snprintf(sql, sizeof(sql),
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"REPLACE INTO Monitor_Status (MonitorId, Status) VALUES ('%d','Connected')",
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monitors[i]->Id());
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if ( mysql_query(&dbconn, sql) ) {
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Error("Can't run query: %s", mysql_error(&dbconn));
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}
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}
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int *capture_delays = new int[n_monitors];
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int *alarm_capture_delays = new int[n_monitors];
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int *next_delays = new int[n_monitors];
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struct timeval * last_capture_times = new struct timeval[n_monitors];
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for ( int i = 0; i < n_monitors; i++ ) {
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last_capture_times[i].tv_sec = last_capture_times[i].tv_usec = 0;
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capture_delays[i] = monitors[i]->GetCaptureDelay();
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alarm_capture_delays[i] = monitors[i]->GetAlarmCaptureDelay();
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}
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struct timeval now;
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struct DeltaTimeval delta_time;
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while ( !zm_terminate ) {
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sigprocmask(SIG_BLOCK, &block_set, 0);
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for ( int i = 0; i < n_monitors; i++ ) {
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long min_delay = MAXINT;
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gettimeofday(&now, NULL);
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for ( int j = 0; j < n_monitors; j++ ) {
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if ( last_capture_times[j].tv_sec ) {
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DELTA_TIMEVAL(delta_time, now, last_capture_times[j], DT_PREC_3);
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if ( monitors[i]->GetState() == Monitor::ALARM )
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next_delays[j] = alarm_capture_delays[j]-delta_time.delta;
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else
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next_delays[j] = capture_delays[j]-delta_time.delta;
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if ( next_delays[j] < 0 )
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next_delays[j] = 0;
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} else {
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next_delays[j] = 0;
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}
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if ( next_delays[j] <= min_delay ) {
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min_delay = next_delays[j];
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}
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} // end foreach monitor
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if ( next_delays[i] <= min_delay || next_delays[i] <= 0 ) {
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if ( monitors[i]->PreCapture() < 0 ) {
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Error("Failed to pre-capture monitor %d %d (%d/%d)", monitors[i]->Id(), monitors[i]->Name(), i+1, n_monitors);
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monitors[i]->Close();
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result = -1;
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break;
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}
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if ( monitors[i]->Capture() < 0 ) {
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Error("Failed to capture image from monitor %d %s (%d/%d)", monitors[i]->Id(), monitors[i]->Name(), i+1, n_monitors);
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monitors[i]->Close();
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result = -1;
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break;
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}
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if ( monitors[i]->PostCapture() < 0 ) {
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Error("Failed to post-capture monitor %d %s (%d/%d)", monitors[i]->Id(), monitors[i]->Name(), i+1, n_monitors);
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monitors[i]->Close();
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result = -1;
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break;
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}
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if ( next_delays[i] > 0 ) {
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gettimeofday(&now, NULL);
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DELTA_TIMEVAL(delta_time, now, last_capture_times[i], DT_PREC_3);
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long sleep_time = next_delays[i]-delta_time.delta;
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if ( sleep_time > 0 ) {
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usleep(sleep_time*(DT_MAXGRAN/DT_PREC_3));
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}
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}
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gettimeofday(&(last_capture_times[i]), NULL);
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} // end if next_delay <= min_delay || next_delays[i] <= 0 )
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} // end foreach n_monitors
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sigprocmask(SIG_UNBLOCK, &block_set, 0);
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if ( zm_reload ) {
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for ( int i = 0; i < n_monitors; i++ ) {
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monitors[i]->Reload();
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}
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logTerm();
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logInit(log_id_string);
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zm_reload = false;
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}
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if ( result < 0 ) {
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// Failure, try reconnecting
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break;
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}
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} // end while ! zm_terminate
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delete [] alarm_capture_delays;
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delete [] capture_delays;
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delete [] next_delays;
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delete [] last_capture_times;
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} // end while ! zm_terminate outer connection loop
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for ( int i = 0; i < n_monitors; i++ ) {
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static char sql[ZM_SQL_SML_BUFSIZ];
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snprintf(sql, sizeof(sql),
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"REPLACE INTO Monitor_Status (MonitorId, Status) VALUES ('%d','NotRunning')",
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monitors[i]->Id());
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if ( mysql_query(&dbconn, sql) ) {
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Error("Can't run query: %s", mysql_error(&dbconn));
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}
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delete monitors[i];
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}
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delete [] monitors;
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Image::Deinitialise();
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logTerm();
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zmDbClose();
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return result;
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}
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