int main(int argc, char ** argv)
{
mode = program_mode(argv[0]);
/* Initialise settings from configuration files. */
dvswitch_read_config(handle_config);
/* Parse arguments. */
int opt;
while ((opt = getopt_long(argc, argv, "c:h:p:i:t", options, NULL)) != -1)
{
switch (opt)
{
case 'c':
free(firewire_card);
firewire_card = strdup(optarg);
break;
case 'F':
mode = mode_firewire;
break;
case 'V':
mode = mode_v4l2;
break;
case 'h':
free(mixer_host);
mixer_host = strdup(optarg);
break;
case 'p':
free(mixer_port);
mixer_port = strdup(optarg);
break;
case 't':
do_tally = 1;
break;
case 'i':
{
long id = strtoul(optarg, NULL, 10);
mixer_id = (id < 255) ? id-1 : 255;
}
break;
case 'H': /* --help */
usage(argv[0]);
return 0;
default:
usage(argv[0]);
return 2;
}
}
if (optind != argc)
{
free(device_name);
device_name = strdup(argv[optind++]);
}
if (!mixer_host || !mixer_port)
{
fprintf(stderr, "%s: mixer hostname and port not defined\n",
argv[0]);
return 2;
}
if (optind != argc)
{
fprintf(stderr, "%s: excess argument \"%s\"\n",
argv[0], argv[optind]);
usage(argv[0]);
return 2;
}
if (mode == mode_firewire)
{
if (device_name)
printf("INFO: Reading from Firewire device %s\n", device_name);
else if (firewire_card)
printf("INFO: Reading from Firewire card %s\n", firewire_card);
else
printf("INFO: Reading from first Firewire card with camera\n");
}
else if (mode == mode_v4l2)
{
if (!device_name)
device_name = "/dev/video";
printf("INFO: Reading from V4L2 device %s\n", device_name);
}
else
{
fprintf(stderr, "%s: mode not defined (Firewire or V4L2)\n", argv[0]);
return 2;
}
/* Connect to the mixer, set that as stdout, and run dvgrab. */
printf("INFO: Connecting to %s:%s\n", mixer_host, mixer_port);
int sock = create_connected_socket(mixer_host, mixer_port);
assert(sock >= 0); /* create_connected_socket() should handle errors */
if (write(sock, do_tally ? GREETING_ACT_SOURCE : GREETING_SOURCE,
GREETING_SIZE-1) != GREETING_SIZE-1)
{
perror("ERROR: write");
exit(1);
}
if (write(sock, &mixer_id, sizeof(mixer_id)) != sizeof(mixer_id))
{
perror("ERROR: write");
exit(1);
}
if (do_tally)
{
fflush(NULL);
int child_pid = fork();
if (child_pid < 0)
{
perror("ERROR: fork");
return 1;
}
if (child_pid == 0)
{
tally(sock);
_exit(0);
}
}
if (dup2(sock, STDOUT_FILENO) < 0)
{
perror("ERROR: dup2");
return 1;
}
close(sock);
char * dvgrab_argv[7];
char ** argp = dvgrab_argv;
*argp++ = "dvgrab";
if (mode == mode_v4l2)
*argp++ = "-v4l2";
if (device_name)
{
*argp++ = "-input";
*argp++ = device_name;
}
else if (firewire_card)
{
*argp++ = "-card";
*argp++ = firewire_card;
}
*argp++ = "-noavc";
*argp++ = "-";
*argp = NULL;
assert(argp < dvgrab_argv + sizeof(dvgrab_argv) / sizeof(dvgrab_argv[0]));
execvp("dvgrab", dvgrab_argv);
perror("ERROR: execvp");
return 1;
}
int main(int argc, char ** argv)
{
// Initialise settings from configuration files.
dvswitch_read_config(handle_config);
// Parse arguments.
int opt;
while ((opt = getopt_long(argc, argv, "c:v", options, NULL)) != -1)
{
switch (opt)
{
case 'c':
fw_port_name = optarg;
break;
case 'h':
listen_host = optarg;
break;
case 'p':
listen_port = optarg;
break;
case 'v':
verbose = true;
break;
case 'H': // --help
usage(argv[0]);
return 0;
default:
usage(argv[0]);
return 2;
}
}
if (optind != argc)
fw_port_name = argv[optind++];
if (optind != argc)
{
fprintf(stderr, "%s: excess argument \"%s\"\n",
argv[0], argv[optind]);
usage(argv[0]);
return 2;
}
// Catch SIGINT.
struct sigaction sigint_action;
sigint_action.sa_handler = handle_sigint;
sigemptyset(&sigint_action.sa_mask);
sigint_action.sa_flags = SA_RESTART;
if (sigaction(SIGINT, &sigint_action, NULL))
{
perror("ERROR: sigaction");
return 1;
}
// Set up liveMedia framework
BasicTaskScheduler * sched = BasicTaskScheduler::createNew();
BasicUsageEnvironment * env = BasicUsageEnvironment::createNew(*sched);
RTSPServer * server = RTSPServer::createNew(*env, 8554, NULL);
if (server == NULL)
{
*env << "Failed to create RTSP server: " << env->getResultMsg() << "\n";
return 1;
}
OutPacketBuffer::maxSize = DIF_MAX_FRAME_SIZE;
// Set up session
std::string stream_name("firewire");
stream_name.append(fw_port_name);
std::string stream_desc("DV stream from Firewire port ");
stream_desc.append(fw_port_name);
ServerMediaSession * sms =
ServerMediaSession::createNew(*env, stream_name.c_str(),
stream_desc.c_str(), stream_desc.c_str());
sms->addSubsession(new firewire_subsession(*env, fw_port_name));
server->addServerMediaSession(sms);
// Loop until SIGINT received
if (verbose)
printf("INFO: Serving at rtsp://*:8554/%s\n", stream_name.c_str());
sched->doEventLoop(&received_sigint);
env->reclaim();
return 0;
}