Handle TTL in SDP properly (IPv4 at least) for raw UDP (closes #404)

modules/stream_out/standard.c

@@ -353,8 +353,7 @@ static int Open( vlc_object_t *p_this )
             p_session->psz_sdp = NULL;
 
             var_Get( p_access, "sout-udp-ttl", &val );
-            p_session->i_ttl = val.i_int ? 
-                val.i_int : config_GetInt( p_sout, "ttl" );
+            p_session->i_ttl = val.i_int;
             p_session->i_payload = 33;
             p_session->b_rtp = strstr( psz_access, "rtp") ? 1 : 0;
 

src/stream_output/sap.c

@@ -616,7 +616,9 @@ static char *SDPGenerate( sap_handler_t *p_sap,
                             "%s%s%s",
                             i_sdp_id, i_sdp_version,
                             ipv, p_addr->psz_machine,
-                            psz_name, ipv, psz_uri, p_session->i_ttl,
+                            psz_name, ipv, psz_uri,
+                            /* FIXME: 1 is IPv4 default TTL, not that of IPv6 */
+                            p_session->i_ttl ?: (config_GetInt( p_sap, "ttl" ) ?: 1),
                             p_session->i_port, 
                             p_session->b_rtp ? "RTP/AVP" : "udp",
                             p_session->i_payload,