add polycom support to multicast paging, broadcast all formats at once to…

add polycom support to multicast paging, broadcast all formats at once to support most every popular phone at once

src/include/switch_apr.h

@@ -1304,6 +1304,7 @@ SWITCH_DECLARE(switch_status_t) switch_mcast_join(switch_socket_t *sock, switch_
 SWITCH_DECLARE(switch_status_t) switch_mcast_hops(switch_socket_t *sock, uint8_t ttl);
 
 SWITCH_DECLARE(switch_status_t) switch_mcast_loopback(switch_socket_t *sock, uint8_t opt);
+SWITCH_DECLARE(switch_status_t) switch_mcast_interface(switch_socket_t *sock, switch_sockaddr_t *iface);
 
 /** @} */
 

src/switch_apr.c

@@ -834,6 +834,12 @@ SWITCH_DECLARE(switch_status_t) switch_mcast_loopback(switch_socket_t *sock, uin
 	return apr_mcast_loopback(sock, opt);
 }
 
+SWITCH_DECLARE(switch_status_t) switch_mcast_interface(switch_socket_t *sock, switch_sockaddr_t *iface)
+{
+	return apr_mcast_interface(sock, iface);
+}
+												 
+
 /* socket functions */
 
 SWITCH_DECLARE(const char *) switch_get_addr(char *buf, switch_size_t len, switch_sockaddr_t *in)

src/switch_rtp.c

@@ -1999,6 +1999,7 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_set_local_address(switch_rtp_t *rtp_s
 {
 	switch_socket_t *new_sock = NULL, *old_sock = NULL;
 	switch_status_t status = SWITCH_STATUS_FALSE;
+	int j = 0;
 #ifndef WIN32
 	char o[5] = "TEST", i[5] = "";
 	switch_size_t len, ilen = 0;
@@ -2057,6 +2058,40 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_set_local_address(switch_rtp_t *rtp_s
 		goto done;
 	}
 
+
+	if ((j = atoi(host)) && j > 223 && j < 240) { /* mcast */
+		if (switch_mcast_interface(new_sock, rtp_session->local_addr) != SWITCH_STATUS_SUCCESS) {
+			*err = "Multicast Socket interface Error";
+			goto done;
+		}
+		
+		if (switch_mcast_join(new_sock, rtp_session->local_addr, NULL, NULL) != SWITCH_STATUS_SUCCESS) {
+			*err = "Multicast Error";
+			goto done;
+		}
+
+		if (rtp_session->session) {
+			switch_channel_t *channel = switch_core_session_get_channel(rtp_session->session);
+			const char *var;
+
+			if ((var = switch_channel_get_variable(channel, "multicast_ttl"))) {
+				int ttl = atoi(var);
+
+				if (ttl > 0 && ttl < 256) {
+					if (switch_mcast_hops(new_sock, (uint8_t) ttl) != SWITCH_STATUS_SUCCESS) {
+						*err = "Mutlicast TTL set failed";
+						goto done;
+					}
+					
+				}
+			}
+
+		}
+
+	}
+
+
+
 #ifndef WIN32
 	len = sizeof(i);
 	switch_socket_opt_set(new_sock, SWITCH_SO_NONBLOCK, TRUE);