fix ICE crash

fix potential crash when opening property box

coreapi/callbacks.c

@@ -121,8 +121,7 @@ void linphone_core_update_streams(LinphoneCore *lc, LinphoneCall *call, SalMedia
 					}
 					ms_message("No need to restart streams, SDP is unchanged.");
 					return;
-				}
-				else {
+				}else {
 					if (md_changed & SAL_MEDIA_DESCRIPTION_NETWORK_CHANGED) {
 						ms_message("Network parameters have changed, update them.");
 						linphone_core_update_streams_destinations(lc, call, oldmd, new_md);

coreapi/misc.c

@@ -962,6 +962,12 @@ void linphone_core_update_ice_from_remote_media_description(LinphoneCall *call,
 				ice_check_list_set_state(cl, ICL_Failed);
 			} else if (stream->rtp_port == 0) {
 				ice_session_remove_check_list(call->ice_session, cl);
+#ifdef VIDEO_ENABLED
+				if (stream->type==SalVideo && call->videostream){
+					video_stream_stop(call->videostream);
+					call->videostream=NULL;
+				}
+#endif
 			} else {
 				if ((stream->ice_pwd[0] != '\0') && (stream->ice_ufrag[0] != '\0'))
 					ice_check_list_set_remote_credentials(cl, stream->ice_ufrag, stream->ice_pwd);

gtk/propertybox.c

@@ -1051,6 +1051,7 @@ void linphone_gtk_fill_video_renderers(GtkWidget *pb){
 	MSList *l=ms_filter_lookup_by_interface(MSFilterVideoDisplayInterface);
 	MSList *elem;
 	int i;
+	int active=-1;
 	const char *current_renderer=linphone_core_get_video_display_filter(lc);
 	GtkListStore *store;
 	GtkCellRenderer *renderer=gtk_cell_renderer_text_new();
@@ -1067,10 +1068,10 @@ void linphone_gtk_fill_video_renderers(GtkWidget *pb){
 		gtk_list_store_append(store,&iter);
 		gtk_list_store_set(store,&iter,0,desc->name,1,desc->text,-1);
 		if (current_renderer && strcmp(current_renderer,desc->name)==0)
-			gtk_combo_box_set_active(GTK_COMBO_BOX(combo),i);
+			active=i;
 	}
 	ms_list_free(l);
-	
+	if (active!=-1) gtk_combo_box_set_active(GTK_COMBO_BOX(combo),active);
 }
 
 void linphone_gtk_show_parameters(void){