SAP: add new payload types

modules/access/rtp/rtp.c

@@ -602,6 +602,7 @@ int rtp_autodetect (demux_t *demux, rtp_session_t *session,
         .number = ptype,
     };
 
+    /* Remember to keep this in sync with modules/services_discovery/sap.c */
     switch (ptype)
     {
       case 0:

modules/services_discovery/sap.c

@@ -290,9 +290,11 @@ static bool IsWellKnownPayload (int type)
     switch (type)
     {   /* Should be in sync with modules/demux/rtp.c */
         case  0: /* PCMU/8000 */
+        case  3:
         case  8: /* PCMA/8000 */
         case 10: /* L16/44100/2 */
         case 11: /* L16/44100 */
+        case 12:
         case 14: /* MPA/90000 */
         case 32: /* MPV/90000 */
         case 33: /* MP2/90000 */