Changeset 1098

Timestamp:

Mar 23, 2007 4:34:20 PM (17 years ago)

Author:

bennylp

Message:

ICE (work in progress): integration with PJSUA

Location:

pjproject/trunk

Files:

• pjmedia/include/pjmedia.h (modified) (1 diff)
• pjmedia/include/pjmedia/transport.h (modified) (3 diffs)
• pjmedia/include/pjmedia/transport_ice.h (modified) (2 diffs)
• pjmedia/src/pjmedia/transport_ice.c (modified) (15 diffs)
• pjmedia/src/pjmedia/transport_udp.c (modified) (1 diff)
• pjnath/include/pjnath/ice_stream_transport.h (modified) (2 diffs)
• pjnath/src/pjnath/ice.c (modified) (3 diffs)
• pjnath/src/pjnath/ice_stream_transport.c (modified) (20 diffs)
• pjsip-apps/build/pjsua.dsp (modified) (2 diffs)
• pjsip-apps/src/pjsua/pjsua_app.c (modified) (11 diffs)
• pjsip/build/pjsua_lib.dsp (modified) (2 diffs)
• pjsip/include/pjsip/sip_endpoint.h (modified) (1 diff)
• pjsip/include/pjsua-lib/pjsua.h (modified) (7 diffs)
• pjsip/include/pjsua-lib/pjsua_internal.h (modified) (3 diffs)
• pjsip/src/pjsip/sip_endpoint.c (modified) (1 diff)
• pjsip/src/pjsua-lib/pjsua_call.c (modified) (20 diffs)
• pjsip/src/pjsua-lib/pjsua_core.c (modified) (10 diffs)
• pjsip/src/pjsua-lib/pjsua_media.c (modified) (5 diffs)

pjproject/trunk/pjmedia/include/pjmedia.h

@@ -55 +55 @@
 #include <pjmedia/tonegen.h>
 #include <pjmedia/transport.h>
+#include <pjmedia/transport_ice.h>
 #include <pjmedia/transport_udp.h>
 #include <pjmedia/wav_playlist.h>

pjproject/trunk/pjmedia/include/pjmedia/transport.h

@@ -179 +179 @@
 struct pjmedia_transport_op
 {
+    /**
+     * Get media socket info from the specified transport.
+     *
+     * Application should call #pjmedia_transport_get_info() instead
+     */
     pj_status_t (*get_info)(pjmedia_transport *tp,
                             pjmedia_sock_info *info);
@@ -255 +260 @@
 
 
+/** 
+ * Media transport type.
+ */
+typedef enum pjmedia_transport_type
+{
+    /** Media transport using standard UDP */
+    PJMEDIA_TRANSPORT_TYPE_UDP,
+
+    /** Media transport using ICE */
+    PJMEDIA_TRANSPORT_TYPE_ICE
+
+} pjmedia_transport_type;
+
+
 /**
  * This structure declares stream transport. A stream transport is called
@@ -263 +282 @@
 {
     /** Transport name (for logging purpose). */
-    char                  name[PJ_MAX_OBJ_NAME];
+    char                     name[PJ_MAX_OBJ_NAME];
+
+    /** Transport type. */
+    pjmedia_transport_type   type;
 
     /** Transport's "virtual" function table. */
-    pjmedia_transport_op *op;
+    pjmedia_transport_op    *op;
 };
 
 
+/**
+ * Get media socket info from the specified transport. The socket info
+ * contains information about the local address of this transport, and
+ * would be needed for example to fill in the "c=" and "m=" line of local 
+ * SDP.
+ *
+ * @param tp        The transport.
+ * @param info      Media socket info to be initialized.
+ *
+ * @return          PJ_SUCCESS on success.
+ */
 PJ_INLINE(pj_status_t) pjmedia_transport_get_info(pjmedia_transport *tp,
                                                   pjmedia_sock_info *info)

pjproject/trunk/pjmedia/include/pjmedia/transport_ice.h

@@ -42 +42 @@
 PJ_DECL(pj_status_t) pjmedia_ice_create(pjmedia_endpt *endpt,
                                         const char *name,
+                                        unsigned comp_cnt,
                                         pj_stun_config *stun_cfg,
-                                        pj_dns_resolver *resolver,
-                                        pj_bool_t enable_relay,
-                                        const pj_str_t *stun_name,
                                         pjmedia_transport **p_tp);
 PJ_DECL(pj_status_t) pjmedia_ice_destroy(pjmedia_transport *tp);
+
+PJ_DECL(pj_ice_st*) pjmedia_ice_get_ice_st(pjmedia_transport *tp);
 
 
@@ -54 +54 @@
                                           const pj_str_t *local_ufrag,
                                           const pj_str_t *local_passwd);
-PJ_DECL(pj_status_t) pjmedia_ice_build_sdp(pjmedia_transport *tp,
-                                           pj_pool_t *pool,
-                                           pjmedia_sdp_session *sdp);
+PJ_DECL(pj_status_t) pjmedia_ice_modify_sdp(pjmedia_transport *tp,
+                                            pj_pool_t *pool,
+                                            pjmedia_sdp_session *sdp);
 PJ_DECL(pj_status_t) pjmedia_ice_start_ice(pjmedia_transport *tp,
                                            pj_pool_t *pool,

pjproject/trunk/pjmedia/src/pjmedia/transport_ice.c

@@ -26 +26 @@
     pj_ice_st           *ice_st;
 
-    void  *user_data;
+    void  *stream;
     void (*rtp_cb)(void*,
                    const void*,
@@ -42 +42 @@
                                pjmedia_sock_info *info);
 static pj_status_t tp_attach( pjmedia_transport *tp,
-                              void *user_data,
+                              void *stream,
                               const pj_sockaddr_t *rem_addr,
                               const pj_sockaddr_t *rem_rtcp,
@@ -93 +93 @@
 PJ_DEF(pj_status_t) pjmedia_ice_create(pjmedia_endpt *endpt,
                                        const char *name,
+                                       unsigned comp_cnt,
                                        pj_stun_config *stun_cfg,
-                                       pj_dns_resolver *resolver,
-                                       pj_bool_t enable_relay,
-                                       const pj_str_t *stun_name,
-                                       pjmedia_transport **p_tp)
+                                       pjmedia_transport **p_tp)
 {
     pj_ice_st *ice_st;
     pj_ice_st_cb ice_st_cb;
     struct transport_ice *tp_ice;
+    unsigned i;
     pj_status_t status;
 
@@ -118 +117 @@
         return status;
 
-    /* Add component 1 (RTP) */
-    status = pj_ice_st_add_comp(ice_st, 1);
-    if (status != PJ_SUCCESS) 
-        goto on_error;
-
-    /* Add host candidates. */
-    status = pj_ice_st_add_all_host_interfaces(ice_st, 1, 0, PJ_FALSE, NULL);
-    if (status != PJ_SUCCESS)
-        goto on_error;
-
-    /* Configure STUN server for ICE */
-    if (stun_name) {
-        status = pj_ice_st_set_stun(ice_st, resolver, enable_relay, stun_name);
+    /* Add components */
+    for (i=0; i<comp_cnt; ++i) {
+        status = pj_ice_st_add_comp(ice_st, i+1);
         if (status != PJ_SUCCESS) 
             goto on_error;
-
-        /* Add STUN candidates */
-        status = pj_ice_st_add_stun_interface(ice_st, 1, 0, PJ_FALSE, NULL);
     }
 
@@ -143 +129 @@
     pj_ansi_strcpy(tp_ice->base.name, ice_st->obj_name);
     tp_ice->base.op = &tp_ice_op;
+    tp_ice->base.type = PJMEDIA_TRANSPORT_TYPE_ICE;
 
     ice_st->user_data = (void*)tp_ice;
@@ -158 +145 @@
 
 
-PJ_DEF(pj_status_t) pjmedia_ice_close(pjmedia_transport *tp)
+PJ_DEF(pj_status_t) pjmedia_ice_destroy(pjmedia_transport *tp)
 {
     struct transport_ice *tp_ice = (struct transport_ice*)tp;
@@ -164 +151 @@
     if (tp_ice->ice_st) {
         pj_ice_st_destroy(tp_ice->ice_st);
-        tp_ice->ice_st = NULL;
+        //Must not touch tp_ice after ice_st is destroyed!
+        //(it has the pool)
+        //tp_ice->ice_st = NULL;
     }
 
     return PJ_SUCCESS;
+}
+
+
+PJ_DECL(pj_ice_st*) pjmedia_ice_get_ice_st(pjmedia_transport *tp)
+{
+    struct transport_ice *tp_ice = (struct transport_ice*)tp;
+    return tp_ice->ice_st;
 }
 
@@ -181 +177 @@
 
 
-PJ_DEF(pj_status_t) pjmedia_ice_build_sdp(pjmedia_transport *tp,
-                                          pj_pool_t *pool,
-                                          pjmedia_sdp_session *sdp)
+PJ_DEF(pj_status_t) pjmedia_ice_modify_sdp(pjmedia_transport *tp,
+                                           pj_pool_t *pool,
+                                           pjmedia_sdp_session *sdp)
 {
     struct transport_ice *tp_ice = (struct transport_ice*)tp;
@@ -203 +199 @@
     sdp->attr[sdp->attr_count++] = attr;
 
-    /* Add all candidates */
+    /* Add all candidates (to media level) */
     cand_cnt = pj_ice_get_cand_cnt(tp_ice->ice_st->ice);
     for (i=0; i<cand_cnt; ++i) {
@@ -256 +252 @@
         value = pj_str(buffer);
         attr = pjmedia_sdp_attr_create(pool, "candidate", &value);
-        sdp->attr[sdp->attr_count++] = attr;
+        sdp->media[0]->attr[sdp->media[0]->attr_count++] = attr;
     }
 
@@ -378 +374 @@
     /* Get all candidates */
     cand_cnt = 0;
-    for (i=0; i<rem_sdp->attr_count; ++i) {
+    for (i=0; i<rem_sdp->media[0]->attr_count; ++i) {
         pjmedia_sdp_attr *attr;
 
-        attr = rem_sdp->attr[i];
+        attr = rem_sdp->media[0]->attr[i];
         if (pj_strcmp2(&attr->name, "candidate")!=0)
             continue;
@@ -442 +438 @@
 
 static pj_status_t tp_attach( pjmedia_transport *tp,
-                              void *user_data,
+                              void *stream,
                               const pj_sockaddr_t *rem_addr,
                               const pj_sockaddr_t *rem_rtcp,
@@ -455 +451 @@
     struct transport_ice *tp_ice = (struct transport_ice*)tp;
 
-    tp_ice->user_data = user_data;
+    tp_ice->stream = stream;
     tp_ice->rtp_cb = rtp_cb;
     tp_ice->rtcp_cb = rtcp_cb;
@@ -474 +470 @@
     tp_ice->rtp_cb = NULL;
     tp_ice->rtcp_cb = NULL;
-    tp_ice->user_data = NULL;
+    tp_ice->stream = NULL;
 
     PJ_UNUSED_ARG(strm);
@@ -515 +511 @@
 
     if (comp_id==1 && tp_ice->rtp_cb)
-        (*tp_ice->rtp_cb)(tp_ice->user_data, pkt, size);
+        (*tp_ice->rtp_cb)(tp_ice->stream, pkt, size);
     else if (comp_id==2 && tp_ice->rtcp_cb)
-        (*tp_ice->rtcp_cb)(tp_ice->user_data, pkt, size);
+        (*tp_ice->rtcp_cb)(tp_ice->stream, pkt, size);
 
     PJ_UNUSED_ARG(cand_id);

pjproject/trunk/pjmedia/src/pjmedia/transport_udp.c

@@ -240 +240 @@
     pj_ansi_strcpy(tp->base.name, name);
     tp->base.op = &transport_udp_op;
+    tp->base.type = PJMEDIA_TRANSPORT_TYPE_UDP;
 
     /* Copy socket infos */

pjproject/trunk/pjnath/include/pjnath/ice_stream_transport.h

@@ -72 +72 @@
     pj_ice_st           *ice_st;
     pj_ice_cand_type     type;
+    pj_status_t          status;
     unsigned             comp_id;
     int                  cand_id;
@@ -151 +152 @@
                                                    pj_bool_t notify,
                                                    void *notify_data);
-
+PJ_DECL(pj_status_t) pj_ice_st_get_interfaces_status(pj_ice_st *ice_st);
 
 PJ_DECL(pj_status_t) pj_ice_st_init_ice(pj_ice_st *ice_st,

pjproject/trunk/pjnath/src/pjnath/ice.c

@@ -889 +889 @@
 {
     if (!ice->is_complete) {
+        char errmsg[PJ_ERR_MSG_SIZE];
 
         ice->is_complete = PJ_TRUE;
@@ -894 +895 @@
     
         /* Log message */
-        LOG((ice->obj_name, "ICE process complete"));
+        LOG((ice->obj_name, "ICE process complete, status=%s", 
+             pj_strerror(status, errmsg, sizeof(errmsg)).ptr));
+
         dump_checklist("Dumping checklist", ice, &ice->clist);
         dump_valid_list("Dumping valid list", ice);
@@ -1137 +1140 @@
     dump_checklist("Checklist created:", ice, clist);
 
-    pj_mutex_lock(ice->mutex);
+    pj_mutex_unlock(ice->mutex);
 
     return PJ_SUCCESS;

pjproject/trunk/pjnath/src/pjnath/ice_stream_transport.c

@@ -152 +152 @@
 }
 
-
 /* 
  * This is callback called by ioqueue on incoming packet 
@@ -192 +191 @@
 }
 
-
 /* 
  * Destroy an interface 
@@ -207 +205 @@
     }
 }
-
 
 /* 
@@ -242 +239 @@
 }
 
-
 static void destroy_ice_st(pj_ice_st *ice_st, pj_status_t reason)
 {
@@ -274 +270 @@
 }
 
-
 /*
  * Destroy ICE stream transport.
@@ -283 +278 @@
     return PJ_SUCCESS;
 }
-
 
 /*
@@ -301 +295 @@
 }
 
-
 /*
  * Set STUN server address.
@@ -320 +313 @@
 }
 
-
 /*
  * Add new component.
@@ -350 +342 @@
     return PJ_SUCCESS;
 }
-
 
 /* Add interface */
@@ -406 +397 @@
     add_interface(ice_st, is, p_itf_id, notify, notify_data);
 
-    return PJ_SUCCESS;
-}
-
+    /* Set interface status to SUCCESS */
+    is->status = PJ_SUCCESS;
+
+    return PJ_SUCCESS;
+}
 
 /*
@@ -434 +427 @@
                                         NULL, notify, notify_data);
 }
-
 
 /*
@@ -454 +446 @@
 }
 
-
 /*
  * Add TURN mapping interface.
@@ -473 +464 @@
 }
 
+PJ_DEF(pj_status_t) pj_ice_st_get_interfaces_status(pj_ice_st *ice_st)
+{
+    unsigned i;
+    pj_status_t worst = PJ_SUCCESS;
+
+    for (i=0; i<ice_st->itf_cnt; ++i) {
+        pj_ice_st_interface *itf = ice_st->itfs[i];
+
+        if (itf->status == PJ_SUCCESS) {
+            /* okay */
+        } else if (itf->status == PJ_EPENDING && worst==PJ_SUCCESS) {
+            worst = itf->status;
+        } else {
+            worst = itf->status;
+        }
+    }
+
+    return worst;
+}
 
 /*
@@ -538 +548 @@
 }
 
-
 /*
  * Enum candidates
@@ -568 +577 @@
     return PJ_SUCCESS;
 }
-
 
 /*
@@ -589 +597 @@
 }
 
-
 /*
  * Stop ICE!
@@ -602 +609 @@
     return PJ_SUCCESS;
 }
-
 
 /*
@@ -618 +624 @@
 }
 
-
-
 /*
  * Callback called by ICE session when ICE processing is complete, either
@@ -631 +635 @@
     }
 }
-
 
 /*
@@ -668 +671 @@
 }
 
-
 /*
  * Callback called by ICE session when it receives application data.

pjproject/trunk/pjsip-apps/build/pjsua.dsp

@@ -43 +43 @@
 # PROP Target_Dir ""
 # ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
-# ADD CPP /nologo /MD /W4 /GX /Zi /O2 /I "../../pjsip/include" /I "../../pjlib/include" /I "../../pjlib-util/include" /I "../../pjmedia/include" /D "NDEBUG" /D PJ_WIN32=1 /D PJ_M_I386=1 /D "WIN32" /D "_CONSOLE" /D "_MBCS" /FR /FD /c
+# ADD CPP /nologo /MD /W4 /GX /Zi /O2 /I "../../pjsip/include" /I "../../pjlib/include" /I "../../pjlib-util/include" /I "../../pjmedia/include" /I "../../pjnath/include" /D "NDEBUG" /D PJ_WIN32=1 /D PJ_M_I386=1 /D "WIN32" /D "_CONSOLE" /D "_MBCS" /FR /FD /c
 # SUBTRACT CPP /YX
 # ADD BASE RSC /l 0x409 /d "NDEBUG"
@@ -69 +69 @@
 # PROP Target_Dir ""
 # ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /GZ /c
-# ADD CPP /nologo /MTd /W4 /Gm /GX /ZI /Od /I "../../pjsip/include" /I "../../pjlib/include" /I "../../pjlib-util/include" /I "../../pjmedia/include" /D "_DEBUG" /D PJ_WIN32=1 /D PJ_M_I386=1 /D "WIN32" /D "_CONSOLE" /D "_MBCS" /FR /FD /GZ /c
+# ADD CPP /nologo /MTd /W4 /Gm /GX /ZI /Od /I "../../pjsip/include" /I "../../pjlib/include" /I "../../pjlib-util/include" /I "../../pjmedia/include" /I "../../pjnath/include" /D "_DEBUG" /D PJ_WIN32=1 /D PJ_M_I386=1 /D "WIN32" /D "_CONSOLE" /D "_MBCS" /FR /FD /GZ /c
 # SUBTRACT CPP /YX
 # ADD BASE RSC /l 0x409 /d "_DEBUG"

pjproject/trunk/pjsip-apps/src/pjsua/pjsua_app.c

@@ -145 +145 @@
     puts  ("  --outbound=url      Set the URL of global outbound proxy server");
     puts  ("                      May be specified multiple times");
-    puts  ("  --use-stun1=FORMAT  where FORMAT=host[:port]");
-    puts  ("  --use-stun2=FORMAT  Resolve local IP with the specified STUN servers");
+    puts  ("  --stun-srv=name     Set STUN server host or domain");
     puts  ("");
     puts  ("TLS Options:");
@@ -160 +159 @@
     puts  ("");
     puts  ("Media Options:");
+    puts  ("  --use-ice           Enable ICE (default:no)");
     puts  ("  --add-codec=name    Manually add codec (default is to enable all)");
     puts  ("  --clock-rate=N      Override sound device clock rate");
@@ -326 +326 @@
            OPT_REGISTRAR, OPT_REG_TIMEOUT, OPT_PUBLISH, OPT_ID, OPT_CONTACT,
            OPT_REALM, OPT_USERNAME, OPT_PASSWORD,
-           OPT_NAMESERVER, OPT_USE_STUN1, OPT_USE_STUN2, 
+           OPT_NAMESERVER, OPT_STUN_SRV,
            OPT_ADD_BUDDY, OPT_OFFER_X_MS_MSG, OPT_NO_PRESENCE,
            OPT_AUTO_ANSWER, OPT_AUTO_HANGUP, OPT_AUTO_PLAY, OPT_AUTO_LOOP,
-           OPT_AUTO_CONF, OPT_CLOCK_RATE,
+           OPT_AUTO_CONF, OPT_CLOCK_RATE, OPT_USE_ICE,
            OPT_PLAY_FILE, OPT_PLAY_TONE, OPT_RTP_PORT, OPT_ADD_CODEC, 
            OPT_ILBC_MODE, OPT_REC_FILE, OPT_AUTO_REC,
@@ -367 +367 @@
         { "password",   1, 0, OPT_PASSWORD},
         { "nameserver", 1, 0, OPT_NAMESERVER},
-        { "use-stun1",  1, 0, OPT_USE_STUN1},
-        { "use-stun2",  1, 0, OPT_USE_STUN2},
+        { "stun-srv",   1, 0, OPT_STUN_SRV},
         { "add-buddy",  1, 0, OPT_ADD_BUDDY},
         { "offer-x-ms-msg",0,0,OPT_OFFER_X_MS_MSG},
@@ -382 +381 @@
         { "rec-file",   1, 0, OPT_REC_FILE},
         { "rtp-port",   1, 0, OPT_RTP_PORT},
+        { "use-ice",    0, 0, OPT_USE_ICE},
         { "add-codec",  1, 0, OPT_ADD_CODEC},
         { "complexity", 1, 0, OPT_COMPLEXITY},
@@ -442 +442 @@
     pj_optind = 0;
     while((c=pj_getopt_long(argc,argv, "", long_options,&option_index))!=-1) {
-        char *p;
         pj_str_t tmp;
         long lval;
@@ -633 +632 @@
             break;
 
-        case OPT_USE_STUN1:   /* STUN server 1 */
-            p = pj_ansi_strchr(pj_optarg, ':');
-            if (p) {
-                *p = '\0';
-                cfg->udp_cfg.stun_config.stun_srv1 = pj_str(pj_optarg);
-                cfg->udp_cfg.stun_config.stun_port1 = pj_strtoul(pj_cstr(&tmp, p+1));
-                if (cfg->udp_cfg.stun_config.stun_port1 < 1 || cfg->udp_cfg.stun_config.stun_port1 > 65535) {
-                    PJ_LOG(1,(THIS_FILE, 
-                              "Error: expecting port number with "
-                              "option --use-stun1"));
-                    return PJ_EINVAL;
-                }
-            } else {
-                cfg->udp_cfg.stun_config.stun_port1 = 3478;
-                cfg->udp_cfg.stun_config.stun_srv1 = pj_str(pj_optarg);
-            }
-            cfg->udp_cfg.use_stun = PJ_TRUE;
-            break;
-
-        case OPT_USE_STUN2:   /* STUN server 2 */
-            p = pj_ansi_strchr(pj_optarg, ':');
-            if (p) {
-                *p = '\0';
-                cfg->udp_cfg.stun_config.stun_srv2 = pj_str(pj_optarg);
-                cfg->udp_cfg.stun_config.stun_port2 = pj_strtoul(pj_cstr(&tmp,p+1));
-                if (cfg->udp_cfg.stun_config.stun_port2 < 1 || cfg->udp_cfg.stun_config.stun_port2 > 65535) {
-                    PJ_LOG(1,(THIS_FILE, 
-                              "Error: expecting port number with "
-                              "option --use-stun2"));
-                    return PJ_EINVAL;
-                }
-            } else {
-                cfg->udp_cfg.stun_config.stun_port2 = 3478;
-                cfg->udp_cfg.stun_config.stun_srv2 = pj_str(pj_optarg);
-            }
+        case OPT_STUN_SRV:   /* STUN server */
+            cfg->cfg.stun_srv = pj_str(pj_optarg);
             break;
 
@@ -727 +693 @@
         case OPT_REC_FILE:
             cfg->rec_file = pj_str(pj_optarg);
+            break;
+
+        case OPT_USE_ICE:
+            cfg->media_cfg.enable_ice = PJ_TRUE;
             break;
 
@@ -1114 +1084 @@
 
     /* STUN */
-    if (config->udp_cfg.stun_config.stun_port1) {
-        pj_ansi_sprintf(line, "--use-stun1 %.*s:%d\n",
-                        (int)config->udp_cfg.stun_config.stun_srv1.slen, 
-                        config->udp_cfg.stun_config.stun_srv1.ptr, 
-                        config->udp_cfg.stun_config.stun_port1);
+    if (config->cfg.stun_srv.slen) {
+        pj_ansi_sprintf(line, "--stun-srv %.*s\n",
+                        (int)config->cfg.stun_srv.slen, 
+                        config->cfg.stun_srv.ptr);
         pj_strcat2(&cfg, line);
     }
 
-    if (config->udp_cfg.stun_config.stun_port2) {
-        pj_ansi_sprintf(line, "--use-stun2 %.*s:%d\n",
-                        (int)config->udp_cfg.stun_config.stun_srv2.slen, 
-                        config->udp_cfg.stun_config.stun_srv2.ptr, 
-                        config->udp_cfg.stun_config.stun_port2);
-        pj_strcat2(&cfg, line);
-    }
 
     /* TLS */
@@ -1175 +1137 @@
 
     /* Media */
+    if (config->media_cfg.enable_ice)
+        pj_strcat2(&cfg, "--use-ice\n");
     if (config->null_audio)
         pj_strcat2(&cfg, "--null-audio\n");
@@ -2963 +2927 @@
         return status;
 
-    /* Copy udp_cfg STUN config to rtp_cfg */
-    app_config.rtp_cfg.use_stun = app_config.udp_cfg.use_stun;
-    app_config.rtp_cfg.stun_config = app_config.udp_cfg.stun_config;
-
-
     /* Initialize application callbacks */
     app_config.cfg.cb.on_call_state = &on_call_state;

pjproject/trunk/pjsip/build/pjsua_lib.dsp

@@ -42 +42 @@
 # PROP Target_Dir ""
 # ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_MBCS" /D "_LIB" /YX /FD /c
-# ADD CPP /nologo /MD /W4 /GX /Zi /O2 /I "../include" /I "../../pjmedia/include" /I "../../pjlib-util/include" /I "../../pjlib/include" /D "NDEBUG" /D PJ_WIN32=1 /D PJ_M_I386=1 /D "WIN32" /D "_MBCS" /D "_LIB" /FR /FD /c
+# ADD CPP /nologo /MD /W4 /GX /Zi /O2 /I "../include" /I "../../pjmedia/include" /I "../../pjlib-util/include" /I "../../pjlib/include" /I "../../pjnath/include" /D "NDEBUG" /D PJ_WIN32=1 /D PJ_M_I386=1 /D "WIN32" /D "_MBCS" /D "_LIB" /FR /FD /c
 # SUBTRACT CPP /YX
 # ADD BASE RSC /l 0x409 /d "NDEBUG"
@@ -66 +66 @@
 # PROP Target_Dir ""
 # ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_MBCS" /D "_LIB" /YX /FD /GZ /c
-# ADD CPP /nologo /MTd /W4 /Gm /GX /ZI /Od /I "../include" /I "../../pjmedia/include" /I "../../pjlib-util/include" /I "../../pjlib/include" /D "_DEBUG" /D PJ_WIN32=1 /D PJ_M_I386=1 /D "WIN32" /D "_MBCS" /D "_LIB" /FR /FD /GZ /c
+# ADD CPP /nologo /MTd /W4 /Gm /GX /ZI /Od /I "../include" /I "../../pjmedia/include" /I "../../pjlib-util/include" /I "../../pjlib/include" /I "../../pjnath/include" /D "_DEBUG" /D PJ_WIN32=1 /D PJ_M_I386=1 /D "WIN32" /D "_MBCS" /D "_LIB" /FR /FD /GZ /c
 # SUBTRACT CPP /YX
 # ADD BASE RSC /l 0x409 /d "_DEBUG"

pjproject/trunk/pjsip/include/pjsip/sip_endpoint.h

@@ -157 +157 @@
                                         pj_timer_entry *entry );
 
+/**
+ * Get the timer heap instance of the SIP endpoint.
+ *
+ * @param endpt     The endpoint.
+ *
+ * @return          The timer heap instance.
+ */
+PJ_DECL(pj_timer_heap_t*) pjsip_endpt_get_timer_heap(pjsip_endpoint *endpt);
+
 
 /**

pjproject/trunk/pjsip/include/pjsua-lib/pjsua.h

@@ -903 +903 @@
     pj_str_t        outbound_proxy[4];
 
+    /**
+     * Specify STUN server. This server will be first resolved with DNS SRV
+     * to get the actual server address. If DNS SRV resolution failed, or
+     * when nameserver is not configured, the server will be resolved using
+     * DNS A resolution (i.e. gethostbyname()).
+     */
+    pj_str_t        stun_srv;
+
     /** 
      * Number of credentials in the credential array.
@@ -1002 +1010 @@
 
     pj_strdup_with_null(pool, &dst->user_agent, &src->user_agent);
+    pj_strdup_with_null(pool, &dst->stun_srv, &src->stun_srv);
 }
 
@@ -1335 +1344 @@
 
 /**
- * This structure describes STUN configuration for SIP and media transport,
- * and is embedded inside pjsua_transport_config structure.
- */
-typedef struct pjsua_stun_config
-{
-    /**
-     * The first STUN server IP address or hostname.
-     */
-    pj_str_t    stun_srv1;
-
-    /**
-     * Port number of the first STUN server.
-     * If zero, default STUN port will be used.
-     */
-    unsigned    stun_port1;
-    
-    /**
-     * Optional second STUN server IP address or hostname, for which the
-     * result of the mapping request will be compared to. If the value
-     * is empty, only one STUN server will be used.
-     */
-    pj_str_t    stun_srv2;
-
-    /**
-     * Port number of the second STUN server.
-     * If zero, default STUN port will be used.
-     */
-    unsigned    stun_port2;
-
-} pjsua_stun_config;
-
-
-
-/**
- * Call this function to initialize STUN config with default values.
- * STUN config is normally embedded inside pjsua_transport_config, so
- * normally there is no need to call this function and rather just
- * call pjsua_transport_config_default() instead.
- *
- * @param cfg       The STUN config to be initialized.
- *
- * \par Python:
- * The corresponding Python function creates and initialize the config:
- * \code
-    stun_cfg = py_pjsua.stun_config_default()
- * \endcode
- */
-PJ_INLINE(void) pjsua_stun_config_default(pjsua_stun_config *cfg)
-{
-    pj_bzero(cfg, sizeof(*cfg));
-}
-
-
-/**
  * Transport configuration for creating transports for both SIP
  * and media. Before setting some values to this structure, application
@@ -1436 +1391 @@
 
     /**
-     * Flag to indicate whether STUN should be used.
-     */
-    pj_bool_t           use_stun;
-
-    /**
-     * STUN configuration, must be specified when STUN is used.
-     */
-    pjsua_stun_config   stun_config;
-
-    /**
      * This specifies TLS settings for TLS transport. It is only be used
      * when this transport config is being used to create a SIP TLS
@@ -1469 +1414 @@
 {
     pj_bzero(cfg, sizeof(*cfg));
-    pjsua_stun_config_default(&cfg->stun_config);
     pjsip_tls_setting_default(&cfg->tls_setting);
-}
-
-
-/**
- * This is a utility function to normalize STUN config. It's only
- * used internally by the library.
- *
- * @param cfg       The STUN config to be initialized.
- *
- * \par Python:
- * \code
-    py_pjsua.normalize_stun_config(cfg)
- * \code
- */
-PJ_INLINE(void) pjsua_normalize_stun_config( pjsua_stun_config *cfg )
-{
-    if (cfg->stun_srv1.slen) {
-
-        if (cfg->stun_port1 == 0)
-            cfg->stun_port1 = 3478;
-
-        if (cfg->stun_srv2.slen == 0) {
-            cfg->stun_srv2 = cfg->stun_srv1;
-            cfg->stun_port2 = cfg->stun_port1;
-        } else {
-            if (cfg->stun_port2 == 0)
-                cfg->stun_port2 = 3478;
-        }
-
-    } else {
-        cfg->stun_port1 = 0;
-        cfg->stun_srv2.slen = 0;
-        cfg->stun_port2 = 0;
-    }
 }
 
@@ -1523 +1433 @@
                                            const pjsua_transport_config *src)
 {
+    PJ_UNUSED_ARG(pool);
     pj_memcpy(dst, src, sizeof(*src));
-
-    if (src->stun_config.stun_srv1.slen) {
-        pj_strdup_with_null(pool, &dst->stun_config.stun_srv1,
-                            &src->stun_config.stun_srv1);
-    }
-
-    if (src->stun_config.stun_srv2.slen) {
-        pj_strdup_with_null(pool, &dst->stun_config.stun_srv2,
-                            &src->stun_config.stun_srv2);
-    }
-
-    pjsua_normalize_stun_config(&dst->stun_config);
 }
 
@@ -3531 +3430 @@
     int                 jb_max;
 
+    /**
+     * Enable ICE
+     */
+    pj_bool_t           enable_ice;
+
+    /**
+     * Enable ICE media relay.
+     */
+    pj_bool_t           enable_relay;
 };
 

pjproject/trunk/pjsip/include/pjsua-lib/pjsua_internal.h

@@ -187 +187 @@
     pj_thread_t         *thread[4];         /**< Array of threads.      */
 
+    /* STUN and resolver */
+    pj_stun_config       stun_cfg;  /**< Global STUN settings.          */
+    pj_sockaddr          stun_srv;  /**< Resolved STUN server address   */
+    pj_status_t          stun_status; /**< STUN server status.          */
+    pj_dns_resolver     *resolver;  /**< DNS resolver.                  */
+
     /* Account: */
     unsigned             acc_cnt;            /**< Number of accounts.   */
@@ -271 +277 @@
 
 
+/**
+ * Resolve STUN server.
+ */
+pj_status_t pjsua_resolve_stun_server(pj_bool_t wait);
 
 /**
@@ -276 +286 @@
  */
 pj_bool_t pjsua_call_on_incoming(pjsip_rx_data *rdata);
+
+/*
+ * Media channel.
+ */
+pj_status_t pjsua_media_channel_init(pjsua_call_id call_id,
+                                    pjsip_role_e role);
+pj_status_t pjsua_media_channel_create_sdp(pjsua_call_id call_id, 
+                                           pj_pool_t *pool,
+                                           pjmedia_sdp_session **p_sdp);
+pj_status_t pjsua_media_channel_update(pjsua_call_id call_id,
+                                       pjmedia_sdp_session *local_sdp,
+                                       pjmedia_sdp_session *remote_sdp);
+pj_status_t pjsua_media_channel_deinit(pjsua_call_id call_id);
+
 
 /**

pjproject/trunk/pjsip/src/pjsip/sip_endpoint.c

@@ -759 +759 @@
 
 /*
+ * Get the timer heap instance of the SIP endpoint.
+ */
+PJ_DEF(pj_timer_heap_t*) pjsip_endpt_get_timer_heap(pjsip_endpoint *endpt)
+{
+    return endpt->timer_heap;
+}
+
+/*
  * This is the callback that is called by the transport manager when it 
  * receives a message from the network.

pjproject/trunk/pjsip/src/pjsua-lib/pjsua_call.c

@@ -61 +61 @@
 
 
-/* Destroy the call's media */
-static pj_status_t call_destroy_media(int call_id);
 
 /* Create inactive SDP for call hold. */
@@ -303 +301 @@
     }
 
-    /* Get media capability from media endpoint: */
-
-    status = pjmedia_endpt_create_sdp( pjsua_var.med_endpt, dlg->pool, 1, 
-                                       &call->skinfo, &offer);
+    /* Init media channel */
+    status = pjsua_media_channel_init(call->index, PJSIP_ROLE_UAC);
+    if (status != PJ_SUCCESS) {
+        pjsua_perror(THIS_FILE, "Error initializing media channel", status);
+        goto on_error;
+    }
+
+    /* Create SDP offer */
+    status = pjsua_media_channel_create_sdp(call->index, dlg->pool, &offer);
     if (status != PJ_SUCCESS) {
         pjsua_perror(THIS_FILE, "pjmedia unable to create SDP", status);
@@ -404 +407 @@
     if (call_id != -1) {
         reset_call(call_id);
+        pjsua_media_channel_deinit(call_id);
     }
 
@@ -527 +531 @@
 
 
-    /* Get media capability from media endpoint: */
-    status = pjmedia_endpt_create_sdp( pjsua_var.med_endpt, 
-                                       rdata->tp_info.pool, 1,
-                                       &call->skinfo, &answer );
+    /* Init media channel */
+    status = pjsua_media_channel_init(call->index, PJSIP_ROLE_UAS);
     if (status != PJ_SUCCESS) {
         pjsip_endpt_respond_stateless(pjsua_var.endpt, rdata, 500, NULL,
@@ -539 +541 @@
 
 
+    /* Get media capability from media endpoint: */
+    status = pjsua_media_channel_create_sdp(call->index, rdata->tp_info.pool, &answer);
+    if (status != PJ_SUCCESS) {
+        pjsip_endpt_respond_stateless(pjsua_var.endpt, rdata, 500, NULL,
+                                      NULL, NULL);
+        pjsua_media_channel_deinit(call->index);
+        PJSUA_UNLOCK();
+        return PJ_TRUE;
+    }
+
+
     /* Verify that we can handle the request. */
     status = pjsip_inv_verify_request(rdata, &options, answer, NULL,
@@ -562 +575 @@
         }
 
+        pjsua_media_channel_deinit(call->index);
         PJSUA_UNLOCK();
         return PJ_TRUE;
@@ -581 +595 @@
         pjsip_endpt_respond_stateless(pjsua_var.endpt, rdata, 500, NULL,
                                       NULL, NULL);
+        pjsua_media_channel_deinit(call->index);
         PJSUA_UNLOCK();
         return PJ_TRUE;
@@ -591 +606 @@
         pjsip_endpt_respond_stateless(pjsua_var.endpt, rdata, 500, NULL,
                                       NULL, NULL);
+        pjsua_media_channel_deinit(call->index);
         PJSUA_UNLOCK();
         return PJ_TRUE;
@@ -619 +635 @@
         pjsip_dlg_terminate(dlg);
          */
+        pjsua_media_channel_deinit(call->index);
         PJSUA_UNLOCK();
         return PJ_TRUE;
@@ -650 +667 @@
         pjsip_dlg_respond(dlg, rdata, 500, NULL, NULL, NULL);
         pjsip_inv_terminate(inv, 500, PJ_FALSE);
+        pjsua_media_channel_deinit(call->index);
         PJSUA_UNLOCK();
         return PJ_TRUE;
@@ -655 +673 @@
     } else {
         status = pjsip_inv_send_msg(inv, response);
-        if (status != PJ_SUCCESS)
+        if (status != PJ_SUCCESS) {
             pjsua_perror(THIS_FILE, "Unable to send 100 response", status);
+        }
     }
 
@@ -1192 +1211 @@
     PJ_UNUSED_ARG(unhold);
     PJ_TODO(create_active_inactive_sdp_based_on_unhold_arg);
-    status = pjmedia_endpt_create_sdp( pjsua_var.med_endpt, call->inv->pool, 
-                                       1, &call->skinfo, &sdp);
+    status = pjsua_media_channel_create_sdp(call->index, call->inv->pool, &sdp);
     if (status != PJ_SUCCESS) {
         pjsua_perror(THIS_FILE, "Unable to get SDP from media endpoint", 
@@ -1886 +1904 @@
 
 /*
- * Destroy the call's media
- */
-static pj_status_t call_destroy_media(int call_id)
-{
-    pjsua_call *call = &pjsua_var.calls[call_id];
-
-    if (call->conf_slot != PJSUA_INVALID_ID) {
-        pjmedia_conf_remove_port(pjsua_var.mconf, call->conf_slot);
-        call->conf_slot = PJSUA_INVALID_ID;
-    }
-
-    if (call->session) {
-        /* Destroy session (this will also close RTP/RTCP sockets). */
-        pjmedia_session_destroy(call->session);
-        call->session = NULL;
-
-        PJ_LOG(4,(THIS_FILE, "Media session for call %d is destroyed", 
-                             call_id));
-
-    }
-
-    call->media_st = PJSUA_CALL_MEDIA_NONE;
-
-    return PJ_SUCCESS;
-}
-
-
-/*
  * This callback receives notification from invite session when the
  * session state has changed.
@@ -2035 +2025 @@
 
         if (call)
-            call_destroy_media(call->index);
+            pjsua_media_channel_deinit(call->index);
 
         /* Free call */
@@ -2078 +2068 @@
 
 /*
- * DTMF callback from the stream.
- */
-static void dtmf_callback(pjmedia_stream *strm, void *user_data,
-                          int digit)
-{
-    PJ_UNUSED_ARG(strm);
-
-    if (pjsua_var.ua_cfg.cb.on_dtmf_digit) {
-        pjsua_call_id call_id;
-
-        call_id = (pjsua_call_id)user_data;
-        pjsua_var.ua_cfg.cb.on_dtmf_digit(call_id, digit);
-    }
-}
-
-/*
  * Callback to be called when SDP offer/answer negotiation has just completed
  * in the session. This function will start/update media if negotiation
@@ -2101 +2075 @@
                                        pj_status_t status)
 {
-    int prev_media_st = 0;
     pjsua_call *call;
-    pjmedia_session_info sess_info;
-    const pjmedia_sdp_session *local_sdp;
-    const pjmedia_sdp_session *remote_sdp;
-    pjmedia_port *media_port;
-    pj_str_t port_name;
-    char tmp[PJSIP_MAX_URL_SIZE];
+    pjmedia_sdp_session *local_sdp;
+    pjmedia_sdp_session *remote_sdp;
 
     PJSUA_LOCK();
@@ -2119 +2088 @@
 
         /* Stop/destroy media, if any */
-        call_destroy_media(call->index);
+        pjsua_media_channel_deinit(call->index);
 
         /* Disconnect call if we're not in the middle of initializing an
@@ -2134 +2103 @@
     }
 
-    /* Destroy existing media session, if any. */
-
-    if (call) {
-        prev_media_st = call->media_st;
-        call_destroy_media(call->index);
-    }
 
     /* Get local and remote SDP */
-
     status = pjmedia_sdp_neg_get_active_local(call->inv->neg, &local_sdp);
     if (status != PJ_SUCCESS) {
@@ -2164 +2126 @@
     }
 
-    /* Create media session info based on SDP parameters. 
-     * We only support one stream per session at the moment
-     */    
-    status = pjmedia_session_info_from_sdp( call->inv->dlg->pool, 
-                                            pjsua_var.med_endpt, 
-                                            1,&sess_info, 
-                                            local_sdp, remote_sdp);
+    status = pjsua_media_channel_update(call->index, local_sdp, remote_sdp);
     if (status != PJ_SUCCESS) {
         pjsua_perror(THIS_FILE, "Unable to create media session", 
                      status);
         call_disconnect(inv, PJSIP_SC_UNSUPPORTED_MEDIA_TYPE);
+        pjsua_media_channel_deinit(call->index);
         PJSUA_UNLOCK();
         return;
     }
 
-    /* Check if media is put on-hold */
-    if (sess_info.stream_cnt == 0 || 
-        sess_info.stream_info[0].dir == PJMEDIA_DIR_NONE)
-    {
-
-        /* Determine who puts the call on-hold */
-        if (prev_media_st == PJSUA_CALL_MEDIA_ACTIVE) {
-            if (pjmedia_sdp_neg_was_answer_remote(call->inv->neg)) {
-                /* It was local who offer hold */
-                call->media_st = PJSUA_CALL_MEDIA_LOCAL_HOLD;
-            } else {
-                call->media_st = PJSUA_CALL_MEDIA_REMOTE_HOLD;
-            }
-        }
-
-        call->media_dir = PJMEDIA_DIR_NONE;
-
-    } else {
-
-        /* Override ptime, if this option is specified. */
-        if (pjsua_var.media_cfg.ptime != 0) {
-            sess_info.stream_info[0].param->setting.frm_per_pkt = (pj_uint8_t)
-                (pjsua_var.media_cfg.ptime / sess_info.stream_info[0].param->info.frm_ptime);
-            if (sess_info.stream_info[0].param->setting.frm_per_pkt == 0)
-                sess_info.stream_info[0].param->setting.frm_per_pkt = 1;
-        }
-
-        /* Disable VAD, if this option is specified. */
-        if (pjsua_var.media_cfg.no_vad) {
-            sess_info.stream_info[0].param->setting.vad = 0;
-        }
-
-
-        /* Optionally, application may modify other stream settings here
-         * (such as jitter buffer parameters, codec ptime, etc.)
-         */
-        sess_info.stream_info[0].jb_init = pjsua_var.media_cfg.jb_init;
-        sess_info.stream_info[0].jb_min_pre = pjsua_var.media_cfg.jb_min_pre;
-        sess_info.stream_info[0].jb_max_pre = pjsua_var.media_cfg.jb_max_pre;
-        sess_info.stream_info[0].jb_max = pjsua_var.media_cfg.jb_max;
-
-        /* Create session based on session info. */
-        status = pjmedia_session_create( pjsua_var.med_endpt, &sess_info,
-                                         &call->med_tp,
-                                         call, &call->session );
-        if (status != PJ_SUCCESS) {
-            pjsua_perror(THIS_FILE, "Unable to create media session", 
-                         status);
-            //call_disconnect(inv, PJSIP_SC_UNSUPPORTED_MEDIA_TYPE);
-            PJSUA_UNLOCK();
-            return;
-        }
-
-        /* If DTMF callback is installed by application, install our
-         * callback to the session.
-         */
-        if (pjsua_var.ua_cfg.cb.on_dtmf_digit) {
-            pjmedia_session_set_dtmf_callback(call->session, 0, 
-                                              &dtmf_callback, 
-                                              (void*)(call->index));
-        }
-
-        /* Get the port interface of the first stream in the session.
-         * We need the port interface to add to the conference bridge.
-         */
-        pjmedia_session_get_port(call->session, 0, &media_port);
-
-
-        /*
-         * Add the call to conference bridge.
-         */
-        port_name.ptr = tmp;
-        port_name.slen = pjsip_uri_print(PJSIP_URI_IN_REQ_URI,
-                                         call->inv->dlg->remote.info->uri,
-                                         tmp, sizeof(tmp));
-        if (port_name.slen < 1) {
-            port_name = pj_str("call");
-        }
-        status = pjmedia_conf_add_port( pjsua_var.mconf, call->inv->pool,
-                                        media_port, 
-                                        &port_name,
-                                        (unsigned*)&call->conf_slot);
-        if (status != PJ_SUCCESS) {
-            pjsua_perror(THIS_FILE, "Unable to create conference slot", 
-                         status);
-            call_destroy_media(call->index);
-            //call_disconnect(inv, PJSIP_SC_INTERNAL_SERVER_ERROR);
-            PJSUA_UNLOCK();
-            return;
-        }
-
-        /* Call's media state is active */
-        call->media_st = PJSUA_CALL_MEDIA_ACTIVE;
-        call->media_dir = sess_info.stream_info[0].dir;
-    }
-
-    /* Print info. */
-    {
-        char info[80];
-        int info_len = 0;
-        unsigned i;
-
-        for (i=0; i<sess_info.stream_cnt; ++i) {
-            int len;
-            const char *dir;
-            pjmedia_stream_info *strm_info = &sess_info.stream_info[i];
-
-            switch (strm_info->dir) {
-            case PJMEDIA_DIR_NONE:
-                dir = "inactive";
-                break;
-            case PJMEDIA_DIR_ENCODING:
-                dir = "sendonly";
-                break;
-            case PJMEDIA_DIR_DECODING:
-                dir = "recvonly";
-                break;
-            case PJMEDIA_DIR_ENCODING_DECODING:
-                dir = "sendrecv";
-                break;
-            default:
-                dir = "unknown";
-                break;
-            }
-            len = pj_ansi_sprintf( info+info_len,
-                                   ", stream #%d: %.*s (%s)", i,
-                                   (int)strm_info->fmt.encoding_name.slen,
-                                   strm_info->fmt.encoding_name.ptr,
-                                   dir);
-            if (len > 0)
-                info_len += len;
-        }
-        PJ_LOG(4,(THIS_FILE,"Media updates%s", info));
-    }
 
     /* Call application callback, if any */
@@ -2414 +2237 @@
         PJ_LOG(4,(THIS_FILE, "Call %d: received updated media offer",
                   call->index));
-        status = pjmedia_endpt_create_sdp( pjsua_var.med_endpt, 
-                                           call->inv->pool, 1,
-                                           &call->skinfo, &answer);     
+        status = pjsua_media_channel_create_sdp(call->index, call->inv->pool, &answer);
     }
 

pjproject/trunk/pjsip/src/pjsua-lib/pjsua_core.c

@@ -43 +43 @@
     unsigned i;
 
+    pj_bzero(&pjsua_var, sizeof(pjsua_var));
+
     for (i=0; i<PJ_ARRAY_SIZE(pjsua_var.acc); ++i)
         pjsua_var.acc[i].index = i;
@@ -48 +50 @@
     for (i=0; i<PJ_ARRAY_SIZE(pjsua_var.tpdata); ++i)
         pjsua_var.tpdata[i].index = i;
+
+    pjsua_var.stun_status = PJ_EUNKNOWN;
 }
 
@@ -467 +471 @@
     if (ua_cfg->nameserver_count) {
 #if PJSIP_HAS_RESOLVER
-        pj_dns_resolver *resv;
         unsigned i;
 
         /* Create DNS resolver */
-        status = pjsip_endpt_create_resolver(pjsua_var.endpt, &resv);
+        status = pjsip_endpt_create_resolver(pjsua_var.endpt, 
+                                             &pjsua_var.resolver);
         PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
 
         /* Configure nameserver for the DNS resolver */
-        status = pj_dns_resolver_set_ns(resv, ua_cfg->nameserver_count,
+        status = pj_dns_resolver_set_ns(pjsua_var.resolver, 
+                                        ua_cfg->nameserver_count,
                                         ua_cfg->nameserver, NULL);
         if (status != PJ_SUCCESS) {
@@ -483 +488 @@
 
         /* Set this DNS resolver to be used by the SIP resolver */
-        status = pjsip_endpt_set_resolver(pjsua_var.endpt, resv);
+        status = pjsip_endpt_set_resolver(pjsua_var.endpt, pjsua_var.resolver);
         if (status != PJ_SUCCESS) {
             pjsua_perror(THIS_FILE, "Error setting DNS resolver", status);
@@ -551 +556 @@
 
 
+    /* Start resolving STUN server */
+    status = pjsua_resolve_stun_server(PJ_FALSE);
+    if (status != PJ_SUCCESS && status != PJ_EPENDING) {
+        pjsua_perror(THIS_FILE, "Error resolving STUN server", status);
+        return status;
+    }
+
     /* Initialize PJSUA media subsystem */
     status = pjsua_media_subsys_init(media_cfg);
@@ -636 +648 @@
         pj_gettimeofday(&now);
     } while (PJ_TIME_VAL_LT(now, timeout));
+}
+
+/*
+ * Resolve STUN server.
+ */
+pj_status_t pjsua_resolve_stun_server(pj_bool_t wait)
+{
+    if (pjsua_var.stun_status == PJ_EUNKNOWN) {
+        /* Initialize STUN configuration */
+        pj_stun_config_init(&pjsua_var.stun_cfg, &pjsua_var.cp.factory, 0,
+                            pjsip_endpt_get_ioqueue(pjsua_var.endpt),
+                            pjsip_endpt_get_timer_heap(pjsua_var.endpt));
+
+        /* Start STUN server resolution */
+        /* For now just do DNS A resolution */
+
+        if (pjsua_var.ua_cfg.stun_srv.slen == 0) {
+            pjsua_var.stun_status = PJ_SUCCESS;
+        } else {
+            pj_hostent he;
+
+            pjsua_var.stun_status = 
+                pj_gethostbyname(&pjsua_var.ua_cfg.stun_srv, &he);
+
+            if (pjsua_var.stun_status == PJ_SUCCESS) {
+                pj_sockaddr_in_init(&pjsua_var.stun_srv.ipv4, NULL, 0);
+                pjsua_var.stun_srv.ipv4.sin_addr = *(pj_in_addr*)he.h_addr;
+                pjsua_var.stun_srv.ipv4.sin_port = pj_htons((pj_uint16_t)3478);
+            }
+        }
+        return pjsua_var.stun_status;
+
+    } else if (pjsua_var.stun_status == PJ_EPENDING) {
+        /* STUN server resolution has been started, wait for the
+         * result.
+         */
+        pj_assert(!"Should not happen");
+        return PJ_EBUG;
+
+    } else {
+        /* STUN server has been resolved, return the status */
+        return pjsua_var.stun_status;
+    }
 }
 
@@ -820 +875 @@
 static pj_status_t create_sip_udp_sock(pj_in_addr bound_addr,
                                        int port,
-                                       pj_bool_t use_stun,
-                                       const pjsua_stun_config *stun_param,
                                        pj_sock_t *p_sock,
                                        pj_sockaddr_in *p_pub_addr)
 {
-    pjsua_stun_config stun;
+    char ip_addr[32];
+    pj_str_t stun_srv;
     pj_sock_t sock;
     pj_status_t status;
+
+    /* Make sure STUN server resolution has completed */
+    status = pjsua_resolve_stun_server(PJ_TRUE);
+    if (status != PJ_SUCCESS) {
+        pjsua_perror(THIS_FILE, "Error resolving STUN server", status);
+        return status;
+    }
 
     status = pj_sock_socket(PJ_AF_INET, PJ_SOCK_DGRAM, 0, &sock);
@@ -857 +918 @@
     }
 
-    /* Copy and normalize STUN param */
-    if (use_stun) {
-        pj_memcpy(&stun, stun_param, sizeof(*stun_param));
-        pjsua_normalize_stun_config(&stun);
+    if (pjsua_var.stun_srv.addr.sa_family != 0) {
+        pj_ansi_strcpy(ip_addr,pj_inet_ntoa(pjsua_var.stun_srv.ipv4.sin_addr));
+        stun_srv = pj_str(ip_addr);
     } else {
-        pj_bzero(&stun, sizeof(pjsua_stun_config));
+        stun_srv.slen = 0;
     }
 
@@ -868 +928 @@
      * the name of local host.
      */
-    if (stun.stun_srv1.slen) {
+    if (stun_srv.slen) {
         /*
          * STUN is specified, resolve the address with STUN.
          */
         status = pjstun_get_mapped_addr(&pjsua_var.cp.factory, 1, &sock,
-                                         &stun.stun_srv1, 
-                                          stun.stun_port1,
-                                         &stun.stun_srv2, 
-                                          stun.stun_port2,
-                                          p_pub_addr);
+                                         &stun_srv, 3478,
+                                         &stun_srv, 3478,
+                                         p_pub_addr);
         if (status != PJ_SUCCESS) {
             pjsua_perror(THIS_FILE, "Error resolving with STUN", status);
@@ -987 +1045 @@
          */
         status = create_sip_udp_sock(bound_addr.sin_addr, cfg->port, 
-                                     cfg->use_stun, &cfg->stun_config, 
                                      &sock, &pub_addr);
         if (status != PJ_SUCCESS)

pjproject/trunk/pjsip/src/pjsua-lib/pjsua_media.c

@@ -216 +216 @@
     pj_sock_t sock[2];
 
+    /* Make sure STUN server resolution has completed */
+    status = pjsua_resolve_stun_server(PJ_TRUE);
+    if (status != PJ_SUCCESS) {
+        pjsua_perror(THIS_FILE, "Error resolving STUN server", status);
+        return status;
+    }
+
+
     if (next_rtp_port == 0)
         next_rtp_port = (pj_uint16_t)cfg->port;
@@ -273 +281 @@
          * and make sure that the mapped RTCP port is adjacent with the RTP.
          */
-        if (cfg->stun_config.stun_srv1.slen) {
+        if (pjsua_var.stun_srv.addr.sa_family != 0) {
+            char ip_addr[32];
+            pj_str_t stun_srv;
+
+            pj_ansi_strcpy(ip_addr, 
+                           pj_inet_ntoa(pjsua_var.stun_srv.ipv4.sin_addr));
+            stun_srv = pj_str(ip_addr);
+
             status=pjstun_get_mapped_addr(&pjsua_var.cp.factory, 2, sock,
-                                           &cfg->stun_config.stun_srv1, 
-                                           cfg->stun_config.stun_port1,
-                                           &cfg->stun_config.stun_srv2, 
-                                           cfg->stun_config.stun_port2,
+                                           &stun_srv, 3478,
+                                           &stun_srv, 3478,
                                            mapped_addr);
             if (status != PJ_SUCCESS) {
@@ -489 +502 @@
 
 
-/*
- * Create UDP media transports for all the calls. This function creates
- * one UDP media transport for each call.
- */
-PJ_DEF(pj_status_t) 
-pjsua_media_transports_create(const pjsua_transport_config *app_cfg)
-{
-    pjsua_transport_config cfg;
+/* Create normal UDP media transports */
+static pj_status_t create_udp_media_transports(pjsua_transport_config *cfg)
+{
     unsigned i;
     pj_status_t status;
 
-
-    /* Make sure pjsua_init() has been called */
-    PJ_ASSERT_RETURN(pjsua_var.ua_cfg.max_calls>0, PJ_EINVALIDOP);
-
-    PJSUA_LOCK();
-
-    /* Delete existing media transports */
-    for (i=0; i<pjsua_var.ua_cfg.max_calls; ++i) {
-        if (pjsua_var.calls[i].med_tp != NULL) {
-            pjsua_var.calls[i].med_tp->op->destroy(pjsua_var.calls[i].med_tp);
-            pjsua_var.calls[i].med_tp = NULL;
-        }
-    }
-
-    /* Copy config */
-    pj_memcpy(&cfg, app_cfg, sizeof(*app_cfg));
-    pjsua_normalize_stun_config(&cfg.stun_config);
-
     /* Create each media transport */
     for (i=0; i<pjsua_var.ua_cfg.max_calls; ++i) {
 
-        status = create_rtp_rtcp_sock(&cfg, &pjsua_var.calls[i].skinfo);
+        status = create_rtp_rtcp_sock(cfg, &pjsua_var.calls[i].skinfo);
         if (status != PJ_SUCCESS) {
             pjsua_perror(THIS_FILE, "Unable to create RTP/RTCP socket",
@@ -546 +536 @@
     }
 
-    PJSUA_UNLOCK();
-
     return PJ_SUCCESS;
 
@@ -553 +541 @@
     for (i=0; i<pjsua_var.ua_cfg.max_calls; ++i) {
         if (pjsua_var.calls[i].med_tp != NULL) {
-            pjsua_var.calls[i].med_tp->op->destroy(pjsua_var.calls[i].med_tp);
+            pjmedia_transport_close(pjsua_var.calls[i].med_tp);
             pjsua_var.calls[i].med_tp = NULL;
         }
     }
 
+    return status;
+}
+
+
+/* Create ICE media transports (when ice is enabled) */
+static pj_status_t create_ice_media_transports(pjsua_transport_config *cfg)
+{
+    unsigned i;
+    pj_status_t status;
+
+    /* Create each media transport */
+    for (i=0; i<pjsua_var.ua_cfg.max_calls; ++i) {
+        pj_ice_st *ice_st;
+
+        status = pjmedia_ice_create(pjsua_var.med_endpt, NULL, 1,
+                                    &pjsua_var.stun_cfg, 
+                                    &pjsua_var.calls[i].med_tp);
+        if (status != PJ_SUCCESS) {
+            pjsua_perror(THIS_FILE, "Unable to create ICE media transport",
+                         status);
+            goto on_error;
+        }
+
+        ice_st = pjmedia_ice_get_ice_st(pjsua_var.calls[i].med_tp);
+
+        /* Add host candidates for RTP */
+        status = pj_ice_st_add_all_host_interfaces(ice_st, 1, 0, 
+                                                   PJ_FALSE, NULL);
+        if (status != PJ_SUCCESS) {
+            pjsua_perror(THIS_FILE, "Error adding ICE host candidates",
+                         status);
+            goto on_error;
+        }
+
+        /* Configure STUN server */
+        if (pjsua_var.stun_srv.addr.sa_family != 0) {
+        
+            status = pj_ice_st_set_stun_addr(ice_st, 
+                                             pjsua_var.media_cfg.enable_relay,
+                                             &pjsua_var.stun_srv.ipv4);
+            if (status != PJ_SUCCESS) {
+                pjsua_perror(THIS_FILE, "Error setting ICE's STUN server",
+                             status);
+                goto on_error;
+            }
+
+            /* Add STUN server reflexive candidate for RTP */
+            status = pj_ice_st_add_stun_interface(ice_st, 1, 0, 
+                                                  PJ_FALSE, NULL);
+            if (status != PJ_SUCCESS) {
+                pjsua_perror(THIS_FILE, "Error adding ICE address",
+                             status);
+                goto on_error;
+            }
+        }
+    }
+
+    /* Wait until all ICE transports are ready */
+    for (i=0; i<pjsua_var.ua_cfg.max_calls; ++i) {
+        pj_ice_st *ice_st;
+
+        ice_st = pjmedia_ice_get_ice_st(pjsua_var.calls[i].med_tp);
+
+        /* Wait until interface status is PJ_SUCCESS */
+        for (;;) {
+            status = pj_ice_st_get_interfaces_status(ice_st);
+            if (status == PJ_EPENDING)
+                pjsua_handle_events(100);
+            else
+                break;
+        }
+
+        if (status != PJ_SUCCESS) {
+            pjsua_perror(THIS_FILE, 
+                         "Error adding STUN address to ICE media transport",
+                         status);
+            goto on_error;
+        }
+
+        /* Get transport info */
+        pjmedia_transport_get_info(pjsua_var.calls[i].med_tp,
+                                   &pjsua_var.calls[i].skinfo);
+
+    }
+
+    return PJ_SUCCESS;
+
+on_error:
+    for (i=0; i<pjsua_var.ua_cfg.max_calls; ++i) {
+        if (pjsua_var.calls[i].med_tp != NULL) {
+            pjmedia_transport_close(pjsua_var.calls[i].med_tp);
+            pjsua_var.calls[i].med_tp = NULL;
+        }
+    }
+
+    return status;
+}
+
+
+/*
+ * Create UDP media transports for all the calls. This function creates
+ * one UDP media transport for each call.
+ */
+PJ_DEF(pj_status_t) 
+pjsua_media_transports_create(const pjsua_transport_config *app_cfg)
+{
+    pjsua_transport_config cfg;
+    unsigned i;
+    pj_status_t status;
+
+
+    /* Make sure pjsua_init() has been called */
+    PJ_ASSERT_RETURN(pjsua_var.ua_cfg.max_calls>0, PJ_EINVALIDOP);
+
+    PJSUA_LOCK();
+
+    /* Delete existing media transports */
+    for (i=0; i<pjsua_var.ua_cfg.max_calls; ++i) {
+        if (pjsua_var.calls[i].med_tp != NULL) {
+            pjmedia_transport_close(pjsua_var.calls[i].med_tp);
+            pjsua_var.calls[i].med_tp = NULL;
+        }
+    }
+
+    /* Copy config */
+    pjsua_transport_config_dup(pjsua_var.pool, &cfg, app_cfg);
+
+    if (pjsua_var.media_cfg.enable_ice) {
+        status = create_ice_media_transports(&cfg);
+    } else {
+        status = create_udp_media_transports(&cfg);
+    }
+
+
     PJSUA_UNLOCK();
 
     return status;
+}
+
+
+pj_status_t pjsua_media_channel_init(pjsua_call_id call_id,
+                                     pjsip_role_e role)
+{
+    pjsua_call *call = &pjsua_var.calls[call_id];
+
+    if (pjsua_var.media_cfg.enable_ice) {
+        pj_ice_role ice_role;
+        pj_status_t status;
+
+        ice_role = (role==PJSIP_ROLE_UAC ? PJ_ICE_ROLE_CONTROLLING : 
+                                           PJ_ICE_ROLE_CONTROLLED);
+
+        /* Restart ICE */
+        pjmedia_ice_stop_ice(call->med_tp);
+
+        status = pjmedia_ice_init_ice(call->med_tp, ice_role, NULL, NULL);
+        if (status != PJ_SUCCESS)
+            return status;
+    }
+
+    return PJ_SUCCESS;
+}
+
+pj_status_t pjsua_media_channel_create_sdp(pjsua_call_id call_id, 
+                                           pj_pool_t *pool,
+                                           pjmedia_sdp_session **p_sdp)
+{
+    pjmedia_sdp_session *sdp;
+    pjsua_call *call = &pjsua_var.calls[call_id];
+    pj_status_t status;
+
+    status = pjmedia_endpt_create_sdp(pjsua_var.med_endpt, pool, 1,
+                                      &call->skinfo, &sdp);
+    if (status != PJ_SUCCESS)
+        goto on_error;
+
+    if (pjsua_var.media_cfg.enable_ice) {
+        status = pjmedia_ice_modify_sdp(call->med_tp, pool, sdp);
+        if (status != PJ_SUCCESS)
+            goto on_error;
+    }
+
+    *p_sdp = sdp;
+    return PJ_SUCCESS;
+
+on_error:
+    pjsua_media_channel_deinit(call_id);
+    return status;
+
+}
+
+
+static void stop_media_session(pjsua_call_id call_id)
+{
+    pjsua_call *call = &pjsua_var.calls[call_id];
+
+    if (call->conf_slot != PJSUA_INVALID_ID) {
+        pjmedia_conf_remove_port(pjsua_var.mconf, call->conf_slot);
+        call->conf_slot = PJSUA_INVALID_ID;
+    }
+
+    if (call->session) {
+        pjmedia_session_destroy(call->session);
+        call->session = NULL;
+
+        PJ_LOG(4,(THIS_FILE, "Media session for call %d is destroyed", 
+                             call_id));
+
+    }
+
+    call->media_st = PJSUA_CALL_MEDIA_NONE;
+}
+
+pj_status_t pjsua_media_channel_deinit(pjsua_call_id call_id)
+{
+    pjsua_call *call = &pjsua_var.calls[call_id];
+
+    stop_media_session(call_id);
+
+    if (pjsua_var.media_cfg.enable_ice) {
+        pjmedia_ice_stop_ice(call->med_tp);
+    }
+
+    return PJ_SUCCESS;
+}
+
+
+/*
+ * DTMF callback from the stream.
+ */
+static void dtmf_callback(pjmedia_stream *strm, void *user_data,
+                          int digit)
+{
+    PJ_UNUSED_ARG(strm);
+
+    if (pjsua_var.ua_cfg.cb.on_dtmf_digit) {
+        pjsua_call_id call_id;
+
+        call_id = (pjsua_call_id)user_data;
+        pjsua_var.ua_cfg.cb.on_dtmf_digit(call_id, digit);
+    }
+}
+
+
+pj_status_t pjsua_media_channel_update(pjsua_call_id call_id,
+                                       pjmedia_sdp_session *local_sdp,
+                                       pjmedia_sdp_session *remote_sdp)
+{
+    int prev_media_st = 0;
+    pjsua_call *call = &pjsua_var.calls[call_id];
+    pjmedia_session_info sess_info;
+    pjmedia_port *media_port;
+    pj_str_t port_name;
+    char tmp[PJSIP_MAX_URL_SIZE];
+    pj_status_t status;
+
+    /* Destroy existing media session, if any. */
+    prev_media_st = call->media_st;
+    stop_media_session(call->index);
+
+    /* Create media session info based on SDP parameters. 
+     * We only support one stream per session at the moment
+     */    
+    status = pjmedia_session_info_from_sdp( call->inv->dlg->pool, 
+                                            pjsua_var.med_endpt, 
+                                            1,&sess_info, 
+                                            local_sdp, remote_sdp);
+    if (status != PJ_SUCCESS)
+        return status;
+
+
+    /* Check if media is put on-hold */
+    if (sess_info.stream_cnt == 0 || 
+        sess_info.stream_info[0].dir == PJMEDIA_DIR_NONE)
+    {
+
+        /* Determine who puts the call on-hold */
+        if (prev_media_st == PJSUA_CALL_MEDIA_ACTIVE) {
+            if (pjmedia_sdp_neg_was_answer_remote(call->inv->neg)) {
+                /* It was local who offer hold */
+                call->media_st = PJSUA_CALL_MEDIA_LOCAL_HOLD;
+            } else {
+                call->media_st = PJSUA_CALL_MEDIA_REMOTE_HOLD;
+            }
+        }
+
+        call->media_dir = PJMEDIA_DIR_NONE;
+
+        /* Shutdown transport */
+        /* No need because we need keepalive? */
+
+    } else {
+
+        /* Start ICE */
+        if (pjsua_var.media_cfg.enable_ice) {
+            status = pjmedia_ice_start_ice(call->med_tp, call->inv->pool, 
+                                           remote_sdp);
+            if (status != PJ_SUCCESS)
+                return status;
+        }
+
+        /* Override ptime, if this option is specified. */
+        if (pjsua_var.media_cfg.ptime != 0) {
+            sess_info.stream_info[0].param->setting.frm_per_pkt = (pj_uint8_t)
+                (pjsua_var.media_cfg.ptime / sess_info.stream_info[0].param->info.frm_ptime);
+            if (sess_info.stream_info[0].param->setting.frm_per_pkt == 0)
+                sess_info.stream_info[0].param->setting.frm_per_pkt = 1;
+        }
+
+        /* Disable VAD, if this option is specified. */
+        if (pjsua_var.media_cfg.no_vad) {
+            sess_info.stream_info[0].param->setting.vad = 0;
+        }
+
+
+        /* Optionally, application may modify other stream settings here
+         * (such as jitter buffer parameters, codec ptime, etc.)
+         */
+        sess_info.stream_info[0].jb_init = pjsua_var.media_cfg.jb_init;
+        sess_info.stream_info[0].jb_min_pre = pjsua_var.media_cfg.jb_min_pre;
+        sess_info.stream_info[0].jb_max_pre = pjsua_var.media_cfg.jb_max_pre;
+        sess_info.stream_info[0].jb_max = pjsua_var.media_cfg.jb_max;
+
+        /* Create session based on session info. */
+        status = pjmedia_session_create( pjsua_var.med_endpt, &sess_info,
+                                         &call->med_tp,
+                                         call, &call->session );
+        if (status != PJ_SUCCESS) {
+            return status;
+        }
+
+        /* If DTMF callback is installed by application, install our
+         * callback to the session.
+         */
+        if (pjsua_var.ua_cfg.cb.on_dtmf_digit) {
+            pjmedia_session_set_dtmf_callback(call->session, 0, 
+                                              &dtmf_callback, 
+                                              (void*)(call->index));
+        }
+
+        /* Get the port interface of the first stream in the session.
+         * We need the port interface to add to the conference bridge.
+         */
+        pjmedia_session_get_port(call->session, 0, &media_port);
+
+
+        /*
+         * Add the call to conference bridge.
+         */
+        port_name.ptr = tmp;
+        port_name.slen = pjsip_uri_print(PJSIP_URI_IN_REQ_URI,
+                                         call->inv->dlg->remote.info->uri,
+                                         tmp, sizeof(tmp));
+        if (port_name.slen < 1) {
+            port_name = pj_str("call");
+        }
+        status = pjmedia_conf_add_port( pjsua_var.mconf, call->inv->pool,
+                                        media_port, 
+                                        &port_name,
+                                        (unsigned*)&call->conf_slot);
+        if (status != PJ_SUCCESS) {
+            return status;
+        }
+
+        /* Call's media state is active */
+        call->media_st = PJSUA_CALL_MEDIA_ACTIVE;
+        call->media_dir = sess_info.stream_info[0].dir;
+    }
+
+    /* Print info. */
+    {
+        char info[80];
+        int info_len = 0;
+        unsigned i;
+
+        for (i=0; i<sess_info.stream_cnt; ++i) {
+            int len;
+            const char *dir;
+            pjmedia_stream_info *strm_info = &sess_info.stream_info[i];
+
+            switch (strm_info->dir) {
+            case PJMEDIA_DIR_NONE:
+                dir = "inactive";
+                break;
+            case PJMEDIA_DIR_ENCODING:
+                dir = "sendonly";
+                break;
+            case PJMEDIA_DIR_DECODING:
+                dir = "recvonly";
+                break;
+            case PJMEDIA_DIR_ENCODING_DECODING:
+                dir = "sendrecv";
+                break;
+            default:
+                dir = "unknown";
+                break;
+            }
+            len = pj_ansi_sprintf( info+info_len,
+                                   ", stream #%d: %.*s (%s)", i,
+                                   (int)strm_info->fmt.encoding_name.slen,
+                                   strm_info->fmt.encoding_name.ptr,
+                                   dir);
+            if (len > 0)
+                info_len += len;
+        }
+        PJ_LOG(4,(THIS_FILE,"Media updates%s", info));
+    }
+
+    return PJ_SUCCESS;
 }