实例介绍
【实例简介】
【实例截图】
【实例截图】
【核心代码】
#include <pjsua-lib/pjsua.h>
#define PROGRAM_NAME "SIPCLIENT"
void initialize_pjsua();
void add_transport();
void user_register();
void call_processing();
void make_call();
void add_buddy();
void add_account();
void error_exit(const char *error_msg, pj_status_t action_status);
static void cb_on_incoming_call(pjsua_acc_id account_id, pjsua_call_id call_id, pjsip_rx_data *rdata);
static void cb_on_call_state(pjsua_call_id call_id, pjsip_event *e);
static void cb_on_reg_state2(pjsua_acc_id account_id, pjsua_reg_info *info);
static void cb_on_buddy_state(pjsua_buddy_id buddy_id);
char SIP_SERVER[20];
char USER_NAME[20];
char USER_PASSWORD[20];
pjsua_call_id call_id_global = -1;
/**********************************************************************************************
MAIN FUNCTIONALITY OF THE SIP CLIENT PROGRAM
***********************************************************************************************/
int main(int argc, char *argv[]) {
if (argc != 4) {
printf ("Invalid arguments. Please enter SIP Domain IP address followed by username followed by password."
"Example: 169.254.1.4 username password \n");
return;
}
strcpy(SIP_SERVER,argv[1]); //argv[1] corresponds to SIP DOMAIN
strcpy(USER_NAME,argv[2]); //argv[2] corresponds to user account name
strcpy(USER_PASSWORD,argv[3]); //argv[3] corresponds to the user password for the account
pj_status_t action_status;
action_status = pjsua_create(); //Creating PJSUA
if (action_status != PJ_SUCCESS)
error_exit("Error in the function pjsua_create()", action_status);
initialize_pjsua(); //Initialize PJSUA
add_transport(); //Adding transport for SIP
action_status = pjsua_start(); //Starting PJSUA
if (action_status != PJ_SUCCESS)
error_exit("Error in the function pjsua_start()", action_status);
add_account(); //Adding user account
call_processing(); //All the main processing for client
pjsua_destroy(); //Destroy PJSUA for shutdown
return 0;
}
/**********************************************************************************************
INITIALIZE PJSUA WITH SPECIFIC SETTINGS
***********************************************************************************************/
void initialize_pjsua() {
pjsua_config init_config;
pjsua_logging_config log_config;
pjsua_config_default(&init_config);
init_config.cb.on_incoming_call = &cb_on_incoming_call;
init_config.cb.on_call_state = &cb_on_call_state;
init_config.cb.on_reg_state2 = &cb_on_reg_state2;
init_config.cb.on_buddy_state = &cb_on_buddy_state;
pjsua_logging_config_default(&log_config);
log_config.console_level = 4;
pj_status_t action_status = pjsua_init(&init_config, &log_config, NULL);
if (action_status != PJ_SUCCESS)
error_exit("Error in the function pjsua_init()", action_status);
}
/**********************************************************************************************
ADD SIP TRANSPORT WITH PORT NUMBER
***********************************************************************************************/
void add_transport() {
pjsua_transport_config transport_config;
pjsua_transport_config_default(&transport_config);
transport_config.port = 0;
pj_status_t action_status = pjsua_transport_create(PJSIP_TRANSPORT_UDP, &transport_config, NULL);
if (action_status != PJ_SUCCESS)
error_exit("Error creating transport", action_status);
}
/**********************************************************************************************
ADD USER ACCOUNT FOR THE DOMAIN FRM ARGUMENTS
***********************************************************************************************/
void add_account() {
pjsua_acc_config account_config;
pjsua_acc_id account_id;
pjsua_acc_config_default(&account_config);
char sip_uri[50];
snprintf(sip_uri, sizeof(sip_uri), "sip:%s@%s", USER_NAME, SIP_SERVER);
char sip[50];
snprintf(sip, sizeof(sip), "sip:%s", SIP_SERVER);
account_config.id = pj_str(sip_uri);
account_config.reg_uri = pj_str(sip);
account_config.cred_count = 1;
account_config.cred_info[0].realm = pj_str("asterisk");
account_config.cred_info[0].scheme = pj_str("digest");
account_config.cred_info[0].username = pj_str(USER_NAME);
account_config.cred_info[0].data_type = PJSIP_CRED_DATA_PLAIN_PASSWD;
account_config.cred_info[0].data = pj_str(USER_PASSWORD);
account_config.register_on_acc_add = PJ_FALSE;
pj_status_t action_status = pjsua_acc_add(&account_config, PJ_TRUE, &account_id);
if (action_status != PJ_SUCCESS)
error_exit("Error in adding account", action_status);
action_status = pjsua_acc_set_online_status(0, PJ_TRUE);
if (action_status != PJ_SUCCESS)
error_exit("Error in modifying account presence", action_status);
}
/**********************************************************************************************
ALL MAIN CALL PROCESSING FOR THE CLIENT
***********************************************************************************************/
void call_processing() {
while (1) {
char choice;
pj_status_t action_status;
printf("Enter 'r' to register; 'u' to unregister; 'b' to add buddy;"
"'m' to make a call; 'h' to hangup a call and 'q' to end registration and quit \n");
scanf("%c",&choice);
switch (choice) {
case 'q':
return;
case 'r':
action_status = pjsua_acc_set_registration(0, PJ_TRUE);
if (action_status != PJ_SUCCESS)
error_exit("Error in account unregistration", action_status);
break;
case 'u':
action_status = pjsua_acc_set_registration(0, PJ_FALSE);
if (action_status != PJ_SUCCESS)
error_exit("Error in account unregistration", action_status);
break;
case 'h':
pjsua_call_hangup_all();
break;
case 'm':
make_call();
break;
case 'a':
pjsua_call_answer(call_id_global, 200, NULL, NULL); //Answer incoming calls with 200 OK
break;
case 'c':
pjsua_call_answer(call_id_global, 486, NULL, NULL); //Answer incoming calls with 486 Busy
break;
case 'b':
add_buddy();
break;
}
}
}
/**********************************************************************************************
MAKE A CALL TO DESIRED DESTINATION
***********************************************************************************************/
void make_call() {
char input_uri[40];
pjsua_acc_id account_id;
printf("Enter the destination URI \n");
scanf("%s", input_uri);
printf("uri %s \n", input_uri);
pj_status_t action_status = pjsua_verify_url(input_uri);
if (action_status != PJ_SUCCESS)
printf("Invalid URL entered. Try again. \n");
else {
pj_str_t destination_uri = pj_str(input_uri);
action_status = pjsua_call_make_call(account_id, &destination_uri, 0, NULL, NULL, NULL);
if (action_status != PJ_SUCCESS)
error_exit("Error making call", action_status);
}
}
/**********************************************************************************************
ADD BUDDY FROM ANY DESIRED DESTINATION
***********************************************************************************************/
void add_buddy() {
pjsua_buddy_id buddy_id;
char input_uri[40];
printf("Enter the destination URI to add as buddy along with port number \n");
scanf("%s", input_uri);
printf("buddy uri %s \n", input_uri);
pj_status_t action_status = pjsua_verify_url(input_uri);
if (action_status != PJ_SUCCESS)
printf("Invalid URL entered. Try again. \n");
else {
pj_str_t destination_uri = pj_str(input_uri);
pjsua_buddy_id destination_bud_id = pjsua_buddy_find(&destination_uri);
if (destination_bud_id == PJSUA_INVALID_ID) {
pjsua_buddy_config config;
pjsua_buddy_config_default(&config);
config.uri = destination_uri;;
config.subscribe = 1;
action_status = pjsua_buddy_add(&config, &buddy_id);
if (action_status != PJ_SUCCESS)
error_exit("Error on adding buddy", action_status);
}
}
}
/**********************************************************************************************
FUNCTION TO HANDLE THE ERRORS AND DESTROY PJSUA
***********************************************************************************************/
void error_exit(const char *error_msg, pj_status_t action_status) {
pjsua_perror(PROGRAM_NAME, error_msg, action_status);
pjsua_destroy();
exit(1);
}
/**********************************************************************************************
CALLBACK FUNCTION TO HANDLE INCOMING CALLS
***********************************************************************************************/
static void cb_on_incoming_call(pjsua_acc_id account_id, pjsua_call_id call_id, pjsip_rx_data *rdata) {
pjsua_call_info call_info;
char choice;
if (pjsua_call_get_count() > 1) {
pjsua_call_answer(call_id, 486, NULL, NULL); //Answer incoming calls with 486 Busy
return;
}
PJ_UNUSED_ARG(account_id);
PJ_UNUSED_ARG(rdata);
pjsua_call_get_info(call_id, &call_info);
call_id_global = call_id;
PJ_LOG(3,(PROGRAM_NAME, "Incoming call from %.*s",
(int)call_info.remote_info.slen,
call_info.remote_info.ptr));
printf("Enter 'a' to answer the call and 'c' to reject \n");
scanf("%c", &choice);
}
/**********************************************************************************************
CALLBACK FUNCTION TO CAPTURE CALL STATUS
***********************************************************************************************/
static void cb_on_call_state(pjsua_call_id call_id, pjsip_event *e) {
pjsua_call_info call_info;
PJ_UNUSED_ARG(e);
pjsua_call_get_info(call_id, &call_info);
PJ_LOG(3,(PROGRAM_NAME, "Call %d state=%.*s", call_id,
(int)call_info.state_text.slen,
call_info.state_text.ptr));
}
/**********************************************************************************************
CALLBACK FUNCTION TO CAPTURE REGISTRATION STATUS
***********************************************************************************************/
static void cb_on_reg_state2(pjsua_acc_id account_id, pjsua_reg_info *info) {
PJ_UNUSED_ARG(account_id);
if (info != NULL && info->cbparam != NULL)
PJ_LOG(3,(PROGRAM_NAME, "Expiration=%d",info->cbparam->expiration));
}
/**********************************************************************************************
CALLBACK FUNCTION FUNCTION TO CAPTURE BUDDY STATUS
***********************************************************************************************/
static void cb_on_buddy_state(pjsua_buddy_id buddy_id) {
pjsua_buddy_info bi;
pjsua_buddy_get_info(buddy_id , &bi);
PJ_LOG(3,(PROGRAM_NAME, "Buddy %.*s with id %d is %.*s",
(int)bi.uri.slen, bi.uri.ptr, bi.id,
(int)bi.status_text.slen, bi.status_text.ptr));
}
标签： pjsip
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