Ejemplo n.º 1
0
Archivo: main.c Proyecto: caasi/UVaOJ
/* get a number before \n */
int get_a_number(int *num)
{
	int count = 0, c, negtive = 0;
	char line[LINE_LEN + 1];
	while(count < LINE_LEN)
	{
		c = get_a_char();
		if(c == '\n' || c == EOF)
			break;
		/* got a number */
		if(count && !isdigit(c))
		{
			put_a_char(c);
			break;
		}
		if(isdigit(c))
			line[count++] = c;
		if(c == '-' && !negtive)
		{
			line[count++] = c;
			negtive = 1;
		}
	}
	line[count] = '\0';
	if(num)
		*num = atoi(line);
	return c;
}
Ejemplo n.º 2
0
int main (const int argc, const char** argv)
{
	GF_Err e;
	Bool run;

	/* location of the configuration file: 0 wait for config on a socket, 1 use the given file */
	u32 config_flag;	
	char config_file_name[MAX_BUF];

	int dest_port;
	unsigned short tcp_port = 0;
	/* Should be fine on WIFI network */
	unsigned short mtu_size = 1492;
	int debug = 0;
	TCP_Input *tcp_conf = NULL;
	GF_Thread *tcp_thread;
	GF_Err th_err_tcp;

	GF_Err th_err_rap;
	RAP_Input *rap_conf;
	GF_Thread *rap_thread;

	CONF_Data *conf;	
	GF_Config *gf_config_file;
	GF_Err res;
	
	GF_Socket *UDP_feedback_socket;
	u32 socketType_for_updates;
	
	PNC_CallbackData * data;
	GF_RTPChannel * chan;
	GF_RTPHeader hdr;
	u32 timer = -1;
	
	GF_Mutex *carrousel_mutex;	
	char sdp_fmt[5000];
	tcp_thread = NULL;
	
	/* init gpac lib */
	gf_sys_init();
	gf_log_set_level(GF_LOG_ERROR);
	gf_log_set_tools(GF_LOG_NETWORK|GF_LOG_RTP|GF_LOG_SCENE|GF_LOG_PARSER|GF_LOG_AUTHOR|GF_LOG_CODING|GF_LOG_SCRIPT);
	
	GF_SAFEALLOC(conf, CONF_Data);
		
	tcp_port = config_flag = 0;
	socketType_for_updates = GF_SOCK_TYPE_UDP;
	if (command_line_parsing(argc, argv, &tcp_port, config_file_name, (int *) &config_flag, &mtu_size, &debug, &socketType_for_updates)){
		print_usage();
		return -1;
	}
	setDebugMode( debug );
	gf_config_file = NULL;
	if (config_flag == 1)
	{
		char *cfg_path;
		char *cfg_fname;
		char *tmp;
		
		cfg_fname = config_file_name;
		cfg_path = config_file_name;
		tmp = strrchr(cfg_fname, GF_PATH_SEPARATOR);
		if (tmp) {
			cfg_fname = tmp+1;
			tmp[0] = 0;
		} else {
			cfg_path = ".";
		}
		gf_config_file = gf_cfg_new(cfg_path, cfg_fname);	
		if (!gf_config_file) {
			fprintf(stderr, "Cannot open config file %s\n", config_file_name);
			return -1;
		} else {
			dprintf(DEBUG_broadcaster, "Using config file %s.\n", config_file_name);
		}
		if (parse_config(gf_config_file, conf, debug)) return -1;
		tcp_port = atoi(conf->config_input_port);
	}
	else
	{
		GF_SAFEALLOC(tcp_conf, TCP_Input);
		tcp_conf->config_flag = &config_flag;
		tcp_conf->RAPtimer = &timer;
		tcp_conf->port = tcp_port;
		tcp_conf->config = conf;
		tcp_thread = gf_th_new("TCPInterface");

		/* Starting the thread which will write the received config in a temporary file */
		th_err_tcp = gf_th_run(tcp_thread, tcp_server, tcp_conf);
		
		fprintf(stdout, "Waiting for configuration on port %d...\n", tcp_conf->port);

		while(config_flag == 0) { 
			gf_sleep(1000); 
		}
		fprintf(stdout, "Configuration File received. Starting Streaming ...\n");
	}
	
	timer = atoi(conf->rap_timer);
	dest_port = atoi(conf->dest_port);
	res = PNC_InitRTP(&chan, (char *)conf->dest_ip, dest_port, mtu_size);
 	if (res != 0) {
		fprintf(stderr, "Cannot initialize RTP output (error: %d)\n", res); 
		exit(1);
	} 

	carrousel_mutex = gf_mx_new("Carrousel");
	data = PNC_Init_SceneGenerator(chan, &hdr, (char *) conf->scene_init_file,
								   socketType_for_updates, (u16) atoi(conf->modif_input_port), debug); 
	if (!data) {
		fprintf(stderr, "Cannot initialize Scene Generator\n"); 
		exit(1);
	}
	data->carrousel_mutex = carrousel_mutex;
	data->RAPsent = 1;
	
	UDP_feedback_socket = gf_sk_new(GF_SOCK_TYPE_UDP);
	e = gf_sk_bind(UDP_feedback_socket, NULL, (u16)atoi(conf->feedback_port), (char*)conf->feedback_ip, (u16)atoi(conf->feedback_port), 0);
	if (e) {
		fprintf(stderr, "Cannot bind socket for bitrate feedback information (%s)\n", gf_error_to_string(e));
	} else {
		e = gf_sk_set_block_mode(UDP_feedback_socket, 1);
		if (e) {
			fprintf(stderr, "Cannot set feedback socket block mode (%s)\n", gf_error_to_string(e));
		}
	}
	data->feedback_socket = UDP_feedback_socket;

	PNC_InitPacketiser(data, sdp_fmt, mtu_size); 
	PNC_SendInitScene(data);

	GF_SAFEALLOC(rap_conf, RAP_Input);
	rap_conf->RAPtimer = &timer;
	rap_conf->carrousel_mutex = carrousel_mutex;
	rap_conf->data = data;
	rap_thread = gf_th_new("RAPGenerator");
	th_err_rap = gf_th_run(rap_thread, RAP_send, rap_conf);

	sdp_generator(data, (char *)conf->dest_ip, sdp_fmt);
	
	run = 1;
	while (run)
	{
		GF_Err e = PNC_processBIFSGenerator(data); 
		if (e) {
			fprintf(stderr, "Cannot Process BIFS data (%s)\n", gf_error_to_string(e));
			break;
		}

		if (has_input()) {
			char c = get_a_char();
			switch (c) {
			case 'q':
				run = 0;
				break;
			}
		}
		gf_sleep(10);
	}

	/* waiting for termination of the RAP thread */
	rap_conf->status = 0;
	while (rap_conf->status != 2)
		gf_sleep(0);
	gf_free(rap_conf);
	gf_th_del(rap_thread);

	/* waiting for termination of the TCP listening thread */
	if (tcp_conf) {
		tcp_conf->status = 0;
		while (tcp_conf->status != 2)
			gf_sleep(0);
		gf_free(tcp_conf);
		gf_th_del(tcp_thread);
	}

	PNC_Close_SceneGenerator(data);
	
	gf_free(conf);
	
	if (gf_config_file)
		gf_cfg_del(gf_config_file);

	gf_mx_del(carrousel_mutex);
	gf_sys_close();
	return 0;
}