Changeset 4346 for pjproject

Timestamp:

Feb 13, 2013 8:20:33 AM (12 years ago)

Author:

nanang

Message:

Re #1568: (PJSIP 1.x) No need to restart media when remote RTP address changed but ICE transport is running.

Location:

pjproject/branches/1.x

Files:

• pjmedia/include/pjmedia/transport.h (modified) (2 diffs)
• pjsip/src/pjsua-lib/pjsua_media.c (modified) (5 diffs)

pjproject/branches/1.x/pjmedia/include/pjmedia/transport.h

@@ -534 +534 @@
  *
  * @param tp        The transport.
- * @param info      Media socket info to be initialized.
+ * @param info      Media transport info to be initialized.
  *
  * @return          PJ_SUCCESS on success.
@@ -545 +545 @@
     
     return PJ_ENOTSUP;
+}
+
+
+/**
+ * Utility API to get transport type specific info from the specified media
+ * transport info.
+ * 
+ * @param info      Media transport info.
+ * @param type      Media transport type.
+ *
+ * @return          Pointer to media transport specific info, or NULL if
+ *                  specific info for the transport type is not found.
+ */
+PJ_INLINE(void*) pjmedia_transport_info_get_spc_info(
+                                                pjmedia_transport_info *info,
+                                                pjmedia_transport_type type)
+{
+    unsigned i;
+    for (i = 0; i < info->specific_info_cnt; ++i) {
+        if (info->spc_info[i].type == type)
+            return (void*)info->spc_info[i].buffer;
+    }
+    return NULL;
 }
 

pjproject/branches/1.x/pjsip/src/pjsua-lib/pjsua_media.c

@@ -858 +858 @@
             pjmedia_transport_info tpinfo;
             pjmedia_ice_transport_info *ii = NULL;
-            unsigned i;
 
             pjmedia_transport_info_init(&tpinfo);
             pjmedia_transport_get_info(tp, &tpinfo);
-            for (i=0; i<tpinfo.specific_info_cnt; ++i) {
-                if (tpinfo.spc_info[i].type==PJMEDIA_TRANSPORT_TYPE_ICE) {
-                    ii = (pjmedia_ice_transport_info*)
-                         tpinfo.spc_info[i].buffer;
-                    break;
-                }
-            }
-
+            ii = (pjmedia_ice_transport_info*)
+                 pjmedia_transport_info_get_spc_info(
+                                         &tpinfo, PJMEDIA_TRANSPORT_TYPE_ICE);
             if (ii && ii->role==PJ_ICE_SESS_ROLE_CONTROLLING &&
                 pj_sockaddr_cmp(&tpinfo.sock_info.rtp_addr_name,
@@ -1587 +1581 @@
 
 
+static pj_bool_t is_ice_running(pjmedia_transport *tp)
+{
+    pjmedia_transport_info tpinfo;
+    pjmedia_ice_transport_info *ice_info;
+
+    pjmedia_transport_info_init(&tpinfo);
+    pjmedia_transport_get_info(tp, &tpinfo);
+    ice_info = (pjmedia_ice_transport_info*)
+               pjmedia_transport_info_get_spc_info(&tpinfo,
+                                                   PJMEDIA_TRANSPORT_TYPE_ICE);
+    return (ice_info && ice_info->sess_state == PJ_ICE_STRANS_STATE_RUNNING);
+}
+
+
 static pj_bool_t is_media_changed(const pjsua_call *call,
                                   int new_audio_idx,
@@ -1626 +1634 @@
         return PJ_TRUE;
 
-    /* Compare remote RTP address */
-    if (pj_sockaddr_cmp(&old_si->rem_addr, &new_si->rem_addr))
+    /* Compare remote RTP address. If ICE is running, change in default
+     * address can happen after negotiation, this can be handled
+     * internally by ICE and does not need to cause media restart.
+     */
+    if (!is_ice_running(call->med_tp) &&
+        pj_sockaddr_cmp(&old_si->rem_addr, &new_si->rem_addr))
+    {
         return PJ_TRUE;
+    }
 
     /* Compare codec info */
@@ -1921 +1935 @@
     } else {
         pjmedia_transport_info tp_info;
+        pjmedia_srtp_info *srtp_info;
 
         /* Start/restart media transport */
@@ -1935 +1950 @@
         pjmedia_transport_info_init(&tp_info);
         pjmedia_transport_get_info(call->med_tp, &tp_info);
-        if (tp_info.specific_info_cnt > 0) {
-            unsigned i;
-            for (i = 0; i < tp_info.specific_info_cnt; ++i) {
-                if (tp_info.spc_info[i].type == PJMEDIA_TRANSPORT_TYPE_SRTP) 
-                {
-                    pjmedia_srtp_info *srtp_info = 
-                                (pjmedia_srtp_info*) tp_info.spc_info[i].buffer;
-
-                    call->rem_srtp_use = srtp_info->peer_use;
-                    break;
-                }
-            }
+        srtp_info = (pjmedia_srtp_info*)
+                    pjmedia_transport_info_get_spc_info(
+                            &tp_info, PJMEDIA_TRANSPORT_TYPE_SRTP);
+        if (srtp_info) {
+            call->rem_srtp_use = srtp_info->peer_use;
         }